CN207607537U - A kind of land hydraulic steering cylinder of amphibious vehicle and transfer - Google Patents

Abstract

The utility model provides a kind of land hydraulic steering cylinder of amphibious vehicle and transfer.A kind of land hydraulic steering cylinder of amphibious vehicle, including cylinder barrel, piston rod, bulb, clip, one end of cylinder barrel are processed as internal thread tubular structure, are installed convenient for bulb, are machined with groove on the outside of internal thread tubular structure, the effect of the groove is the locking by clip；Piston rod is coaxially installed on inside cylinder barrel, and output end is internal thread tubular structure, and the land hydraulic steering cylinder has first interface, second interface；The piston rod output end internal thread equal with cylinder barrel one end is oppositely oriented.The utility model provides a kind of new land hydraulic steering cylinder, to meet amphibious vehicle water/land integrated control formula power steering system.

Description

A kind of land hydraulic steering cylinder of amphibious vehicle and transfer

Technical field

The utility model patent is related to a kind of amphibious vehicle water/land integrated control formula power suitable for amphibious wheeled vehicle Steering belongs to machinery, hydraulic pressure and road vehicle application field.

Background technology

In recent years, very fast with developing compared with the high speed water of high maneuverability and passability, the amphibious wheeled vehicle in land, As the new focus in home and abroad Used in Special Wheeled Vehicle field.The amphibious wheeled vehicle of high speed is the ground maneuver for having wheeled vehicle Property but also with certain offshore navigation ability, military requirement also becomes more prominent, especially suitable for frontier defense, coastal waters make an inspection tour, Make beach landings equal battlefield surroundings.

High speed land and water vehicle is different from the vehicle with driving functions waterborne in itself, the former traveling waterborne speed Degree will be apparently higher than the latter, so its marine propulsion system, steering manipulation system waterborne etc. is all different from the latter, such as high speed water The travel speed waterborne of land amphibious vehicle is usually less than 40km/h, is commonly equipped with spray pump formula marine propulsion system, and has water The travel speed waterborne of the vehicle of upper driving functions is usually no more than 15km/h, and the power of traveling waterborne generally relies on impeller dress Offer is provided.

The steering of high speed amphibious vehicle allows for the steering of independent realization land, turning function waterborne, and land turns There is larger difference in basic principle, system composition, executing agency etc. to system and marine steering system, it is specific next It says, land steering is the steering operation by steering wheel, and steering ladder is moved by a series of mechanical transfer and power-assisted rear-guard Shape mechanism drives vehicle yaw, realizes turning function；Marine steering system is that steering operation is transmitted and helped by a series of After power, the nozzle exit area of water-powered device is manipulated, to complete turning function waterborne.So coming with regard to current national situations It sees, waterborne, the land steering system of most amphibious wheeled vehicles is two sets of completely mutually independent systems, i.e., land When steering, pilot control steering wheel carries out the land traveling of vehicle and manipulates, and when steering waterborne, driver, which need to manipulate, to come about or handle Equal devices carry out vehicle traveling manipulation waterborne.Vehicle is lacked using the main of two sets of mutual indepedent steering apparatus land, waterborne Point is：

1, driver cabin space is more various than narrow and component in wheeled vehicle, if arranging two sets of steerings in cockpit Steerable system, by cockpit real space and other system units（As vehicle mounted electrical apparatus system, power transmission manipulate, parking braking Manipulate etc.）Etc. factors influence, be difficult to realize reasonable Arrangement；

2, an important factor for handling maneuver is influence vehicle safety, control stability, and to have two on vehicle Independent steering apparatus is covered, then inevitable requirement driver has certain technical merit or passes through professional training, poor practicability；

3, since the principle of steering land, waterborne is different from executing agency, steering gear ratio, turns to spirit at hand force property The difference such as sensitivity is huge, and two sets of self-contained units will seriously affect subjective assessment of the driver for Vehicular turn characteristic, can make At will be serious security risk.

In addition, if it is desired to amphibious vehicle has riding stability and the safety of similar ship when driving on the water, then must Longitudinal resistance that vehicle travels on the water must be minimized and due to the intrinsic component in ground wheeled vehicle chassis（Such as tire hangs Extension, steering linkage etc.）Generated complexity direction resistance, therefore amphibious vehicle chassis must have two big features：1, car body class Ship type structure, 2, big stroke may be reversed, fold or promoted suspension frame structure.For steering design, with suspension system The structure type of system and the configuration of car body have extremely close relationship, should meet car body configuration requirements, and matching is outstanding again The forms such as overturning, folding or the promotion of frame system so that the design of the tie rod linkage and power steering system of amphibious vehicle It becomes extremely difficult, has notably, entire vehicle design will be caused to fail.

Therefore, develop one kind water/land handling maneuver can be integrated, can with flexible arrangement power steering system,

Water with high reliability/land integrated control formula power steering system is the most effective way for solving above-mentioned technical barrier Diameter.

Utility model content

The technical problems to be solved in the utility model is：How a kind of new steering waterborne is provided and integrates valve group and its amphibious Vehicle water/land integrated control formula power steering system.

To achieve the goals above, the technical solution of the utility model is as follows：

A kind of land hydraulic steering cylinder of amphibious vehicle, including cylinder barrel, piston rod, bulb, clip, one end of cylinder barrel are processed as Internal thread tubular structure is installed convenient for bulb, is machined with groove on the outside of internal thread tubular structure, the effect of the groove is to pass through The locking of clip；Piston rod is coaxially installed on inside cylinder barrel, and output end is internal thread tubular structure, the land steering hydraulic Cylinder has first interface, second interface；The design oppositely oriented with the internal thread of cylinder barrel one end of piston rod output end.

Preferably, two interfaces can into and out of oil, when land hydraulic steering cylinder stretches out direction to piston rod to be moved, the One interface is oil inlet, is oil outlet；When piston rod is moved to shrinkage direction, first interface is oil outlet, is oil inlet.

Preferably, first interface is located at the side of bulb, second interface is located at the side of bulb.

Preferably, land hydraulic steering cylinder one end connects in such a way that bulb uses conical surface tight fit with vehicle attached seat And by nut check, one end connects in such a way that the upper swing arm of bulb and steering gear connection uses conical surface tight fit and passes through spiral shell Mother's locking.

Preferably, the first interface, second interface are separately connected land and water conversion by high-pressure oil pipe integrates valve group Third interface, the 4th interface.

A kind of amphibious vehicle water/land integrated control formula power steering gear, including steering wheel and power steering gear assembly, Water/integrated the valve group of land conversion, the integrated valve group of steering waterborne, land hydraulic steering cylinder, hydraulic cylinder waterborne of coming about, land and water conversion are opened Pass, steering pump, steering reservoir assembly, steering gear connection, water/land conversion are integrated between valve group and steering wheel and power steering gear assembly It is connected by hydraulic oil pipe；Water/land conversion, which integrates, to be connected between valve group and the integrated valve group of steering waterborne by hydraulic oil pipe；It is land Hydraulic steering cylinder one end is connect with steering gear connection, and land hydraulic steering cylinder and water/land conversion pass through hydraulic oil between integrating valve group Pipe connects；Hydraulic cylinder one end waterborne of coming about is come about with swimmer propulsion unit to be connect, and steering waterborne integrates valve group and hydraulic pressure waterborne of coming about It is connected by hydraulic oil pipe between cylinder；Land and water change-over switch is integrated on vehicle-mounted panel；Steering pump is installed on the engine, by sending out Motivation drives to system and provides high voltage power source；The oil inlet end of steering reservoir assembly oil outlet and steering pump is connected by oil pipe, Oil return opening and the oil return opening of steering wheel and power steering gear assembly, the water/oil return opening of the integrated valve group of land conversion, steering waterborne are integrated The oil return opening of valve group, is connected by oil pipe, and the land hydraulic steering cylinder is the land steering hydraulic of foregoing amphibious vehicle Cylinder.

Preferably, the steering wheel and power steering gear assembly include steering wheel and power steering gear assembly；It is described dynamic Power steering assembly is fixed with driver storehouse instrument board, and steering wheel passes through steering drive axle and power steering gear assembly upper surface Internal spline input terminal connects, to which when pilot control steering wheel, the internal spline input terminal of power steering gear assembly is same therewith Shaft rotation is dynamic；

Power steering gear assembly have oil inlet P, oil return inlet T, tetra- oil circuit interfaces of oil outlet L and oil outlet R, respectively with The second interface of steering pump, the oil return opening of steering reservoir assembly, water/land conversion integrate the first interface of valve group, second interface connects It connects；

Water/land conversion integrates valve group and is fixed on the right side of driver on hull bottom plate by the through-hole on valve body, has 7 Oil circuit interface, wherein the oil outlet L and oil outlet R of first interface, second interface and steering wheel and power steering gear assembly connect It connects, third interface, the 4th interface integrate the first interface of valve group with steering waterborne, second interface is connect, and the 5th interface, the 6th connect Mouth is connect with the first interface of land hydraulic steering cylinder, second interface, and the 7th interface is connect with the oil return opening of steering reservoir assembly；

Steering waterborne integrates valve group and is fixed on driver's rear body bottom plate by the through-hole on valve body, has 5 Oil circuit interface, wherein first interface, second interface and water/land conversion integrate the third interface of valve group, the connection of the 4th interface, third Interface, the 4th interface are connect with the first interface of hydraulic cylinder waterborne of coming about, second interface, the 5th interface and steering reservoir assembly Oil return opening connects；

Land hydraulic steering cylinder one end is connect by the first bulb with vehicle attached seat, and the other end passes through the second bulb and steering The upper swing arm of leverage connects, to realize the fixation of land hydraulic steering cylinder, land hydraulic steering cylinder top oil circuit first interface The 5th interface that valve group is integrated with water/land conversion is connect, and the 6th interface that second interface integrates valve group with water/land conversion is connect；

Hydraulic cylinder one end waterborne of coming about is connect by third bulb with vehicle attached seat, the other end by the 4th bulb with it is waterborne It comes about connection, to realize the fixation of hydraulic cylinder waterborne of coming about, first interface, second interface and the steering pile-up valve waterborne of oil circuit The third interface of group, the connection of the 4th interface；

Land and water change-over switch is integrated in full-vehicle control panel itself, and by pilot control, there are two working condition " lands for tool Upper steering " " steering waterborne ", when " land steering " state, land and water change-over switch 6 is off, and water/land conversion is integrated First interface is unimpeded to the 5th interface, the oil circuit of second interface to the 6th interface in valve group, it is therefore intended that land steering hydraulic Oil supply cylinder realizes land turning function；When " steering waterborne " state, land and water change-over switch is in closed state, first interface To third interface, the oil circuit of second interface to the 4th interface is unimpeded, to realize turning function waterborne；Steering pump is installed to starting On machine, there is steering pump two-way hydraulic fluid port interface, first interface to be connect with the oil outlet of steering reservoir assembly, second interface and direction The oil inlet P of disk and power steering gear assembly connects, and function is to provide hydraulic power supply for system；

Steering reservoir assembly includes steering reservoir, oil tank rack, and steering reservoir is fixed on the car body by oil tank rack, Tool is oil outlet, oil return opening respectively there are two oil circuit interface, and the first interface of oil outlet and steering pump connects, oil return opening and side To the oil return inlet T of disk and power steering gear assembly, water/land conversion integrates the 7th interface of valve group, steering waterborne integrates valve group 5th interface connects.

Preferably, steering wheel and power steering gear assembly include steering wheel, stacked switch, steering drive axle, steering wheel Holder, power steering stgear, steering wheel hub are machined with internal splined hole, and steering drive axle top is machined with splined shaft, direction of insertion Disk center's internal splined hole simultaneously passes through nut check, the connection of completion steering wheel and steering drive axle；Along diameter in the middle part of steering drive axle Horizontal direction is machined with stacked switch holder, convenient for stacked switch to be co-axially mounted and fix with steering drive axle, turns to transmission Axis bottom is rectangular spline axle construction, convenient for being connect with power steering stgear；Bottom surface is hollow square flange structure, and function exists In fixed power steering stgear and enable the bottom rectangle splined shaft of steering drive axle pass through and with power steering stgear internal spline it is defeated Enter end engagement；Tho wheel support top is yoke configurations, and function is to ensure steering drive axle and power steering stgear internal spline Input terminal concentricity.

Preferably, conversion integrated valve group in land and water includes valve body, two three-way magnetic valves, mechanical speed governors valve, check valve C1, Check valve C2, first interface, second interface are oil inlet interface, and it is total with power steering stgear to be separately connected steering wheel by high-pressure oil pipe At oil outlet L and oil outlet R；Third interface, the 4th interface are oil out port, and steering waterborne is separately connected by high-pressure oil pipe The first interface of integrated valve group, second interface；5th interface, the 6th interface be oil outlet, by high-pressure oil pipe respectively with it is land The first interface of hydraulic steering cylinder, second interface connection；7th interface is oil return opening, so that hydraulic oil is flowed back to by oil pipe connection and turns To tank unit.

Mechanical speed governors valve is series at second interface to the 6th interface, and second can be adjusted by adjusting mechanical speed governors valve manually The flow being interfaced in the hydraulic oil unit interval between the 6th interface, and throttling part is returned into steering oil by the 7th interface Tank assembly；

Check valve C1, check valve C2 and the 7th orifice constitute the oil return line of land and water conversion pile-up valve.

It is check valve C3, unidirectional preferably, it includes valve body, mechanical pressure regulator valve, mechanical speed governors valve that steering waterborne, which integrates valve group, Valve C4, wherein first interface 32, second interface are oil inlet interface, and being separately connected land and water conversion by high-pressure oil pipe integrates valve group) Third interface, the 4th interface；Third interface, the 4th interface are oil out port, and waterborne come about is separately connected by high-pressure oil pipe The first interface of 5 hydraulic steering cylinder of hydraulic cylinder, second interface；5th interface is oil return opening, is converted respectively with land and water by oil pipe Steering reservoir assembly is flowed back to after 7th interface parallel connection of integrated valve group

It is two-way independent oil supply circuit that steering waterborne, which integrates inside valve group, is first interface respectively to third interface, second It is interfaced to the 4th interface, connect in oil circuit first interface to third interface the first mechanical pressure regulator valve, the first mechanical speed governors valve lead to Cross the first mechanical pressure regulator valve, the first mechanical speed governors valve adjusts first interface to the hydraulic fluid pressure and stream between third interface respectively Amount；The mechanical pressure regulator valve of series connection second, the second mechanical speed governors valve in second interface to the 4th interface, pass through the second mechanical pressure regulation Valve, the second mechanical speed governors valve adjust second interface to the hydraulic fluid pressure and flow between the 4th interface respectively；

In second interface to the third mechanical speed governors valve 3.5 and in 31 matching internal of valve body cunning of having connected between the 4th interface Dynamic shutoff valve C 5, its object is to balance after third mechanical speed governors valve speed governing, the first mechanical pressure regulator valve, the first mechanical speed governors valve Flowed fluctuation between two independent oil path of inlet ensures the separately adjustable precision of two oil circuits；Check valve C3, check valve C4 are single To shut-off valve, check valve C3, check valve C4 and the 5th orifice constitute the oil return line that steering waterborne integrates valve group.

Preferably, land hydraulic steering cylinder includes cylinder barrel, piston rod, bulb, clip, with first interface, second Interface is separately connected third interface, the 4th interface that land and water conversion integrates valve group by high-pressure oil pipe；Piston rod output end and cylinder Cylinder fixing end is internal thread tubular structure, but both ends internal thread is oppositely oriented and fixes end side in piston rod output end and cylinder barrel Face is machined with groove, bulb be screwed onto respectively piston rod output end in cylinder barrel fixing end, and with locked clip device at groove, Gu Determine bulb screw-in depth.

Compared with the existing technology, the utility model has the following advantages：

1, a kind of land hydraulic steering cylinder of new amphibious vehicle is provided, to meet amphibious vehicle water/land integrated control formula Power steering system.

2. the utility model devises land hydraulic steering cylinder, novelty is, both ends have been all made of bulb latch structure, The space pivot angle range of ball stud is larger, the effect of being not less than 30 °, not only acted as oscillating bearing, additionally it is possible to ensure hydraulic pressure Cylinder is two power bar stresses in telescopic process, i.e. hydraulic cylinder is solely subjected to push and draw force, hydraulic cylinder during the motion other Space perturbed force is eliminated by both ends ball stud, meanwhile, ball stud is cone match with frame support and steering upper swing arm, even It connects securely, strong shock resistance.

3. the utility model devises amphibious vehicle steering waterborne and integrates valve group, when due to steering situation waterborne, liquid of coming about Cylinder pressure is usually smaller, and volume is significantly less than the matched land hydraulic steering cylinder of same vehicle and high-voltage resistance capability is weaker, still, turns to The hydraulic fluid flow rate exported is pumped with pressure far more than the operating limit for hydraulic cylinder of coming about, therefore, steering waterborne integrates valve group wound New property uses step-governor d scheme, that is, first passes through after flow is greatly reduced in working connection, then shunted, pass through two independent branch Accurate speed governing, the pressure regulation on road and reach requirement, the program be effectively ensured water, land turn to switching when stability；Pass through Land steering and handling maneuver waterborne, the variable ratio of steering wheel total kilometres, i.e., land steering are also achieved to the adjustment of flow When steering wheel stroke be -720 ° ~ 720 °, when switching to handling maneuver waterborne, steering wheel stroke automatically becomes -1800 ° ~ 1800 °, The relevant criterion of land steering, steering waterborne is met simultaneously, and during this, driver is without carrying out operation bidirectional.

4. the amphibious vehicle water of the utility model/land integrated control formula power steering system, of simple structure and low cost, The operation is stable, maintenance are convenient, by facts have proved that the system can be by same set of hydraulic power steering system, with non-machine The fluid power transfer mode of tool connection realizes land steering, turning function waterborne, in the state of pilot control same direction disk, The switching of two kinds of handling maneuver patterns can be quickly finished by switching control.

5. the utility model devises steering wheel and power steering gear assembly, which contains driver and carries out steering behaviour All vertical important mechanisms, and its integrated level is very high, and space hold is small, and steering transmission is connect using steering wheel with same tonnage The traditional scheme of axis, transmission case and power steering stgear is compared, and space hold is the 10 ~ 15% of traditional scheme, and weight is only tradition side The 5 ~ 10% of case；Since the steering wheel in the utility model is all made of piping connection side with power steering gear assembly with other component Formula, arrangement form is very flexible, can be accustomed to according to the manipulation of interior layout and driver, arbitrarily changes position, and traditional vehicle Limitation of the components such as the steering wheel in due to its structure and principle, it is necessary to determine position at the beginning of design, and not allow big model That encloses moves position.

6. the amphibious vehicle water of the utility model/land integrated control formula power steering system, using distributed, modular Design concept, steering wheel can be arranged arbitrarily with power steering gear assembly, each function valve group and hydraulic cylinder, regardless of machine driving The problem of implementation of chain and after entrucking can carry out water, the steering of two, land by the calibration of the flow to each integrated valve group The arbitrary steering gear ratio of state is set, i.e. the ratio of steering wheel range and wheel hard-over, this principle is in traditional vehicle It cannot achieve on.

7. the utility model devises land and water conversion and integrates valve group, the power on/off of two solenoid directional control valves on valve body can be passed through It realizes the change of hydraulic circuit in the operating mode transition process of land and water, makes its land hydraulic steering cylinder of whereabouts and liquid waterborne of coming about respectively Cylinder pressure；It just or is rotated backward one week due to steering wheel, the gerotor motor discharge capacity in all-hydraulic power steering stgear is constant, and land The volume for having two chambers of piston rod and piston-rodless of upper steering cylinder is different, rod chamber volume smaller, in order to ensure steering wheel When positive and negative rotation, the stroke of land hydraulic steering cylinder must be unanimously i.e. with identical stroke just or when reverse turn steering wheel, and wheel turns left Or the angle turned right must be consistent, therefore it has been internally integrated speed governing valve；Pressure measurement interface has also been devised on valve body structure, it can To be connect with pressure gauge, detecting system pressure.Conversion integrated valve group in land and water is versatile, can in the case where not changing structure The arbitrary setting of single 30 ~ 40 ° of steeraxle steering locking angle degree is used and can realized suitable for 2 tons to 7 tons steeraxles.

Description of the drawings

Fig. 1 water/land integrated control formula power steering system structure chart

Fig. 2 steering wheels and power steering gear assembly structure chart

Fig. 2-1 stacked switch structure charts

Fig. 2-2 stacked switch rack assumption diagrams

Fig. 2-3 tho wheel support structure charts

Fig. 3 water/land conversion integrates valve group main view perspective view

Fig. 4 water/land conversion integrates valve group birds-eye perspective

Fig. 5 steerings waterborne integrate valve group main view perspective view

Fig. 6 steerings waterborne integrate valve group rear perspective

The land steering structure figures of Fig. 7

The land hydraulic steering cylinder structure charts of Fig. 8

Fig. 9 steering structure figures waterborne

Figure 10 steering pump structure charts

Figure 11 steering reservoir structure charts

Figure 12 oil tank rack structure charts

Figure 13 hydraulic work system schematic diagrams

Reference numeral is as follows：

1 steering wheel and power steering gear assembly；2 water/land conversion integrates valve group；3 steerings waterborne integrate valve group；4 land turns To hydraulic cylinder；5 hydraulic cylinders waterborne of coming about；6 land and water change-over switches；7 steering pumps；8 steering reservoir assemblies；

Steering wheel and power steering gear assembly：11 steering wheels；12 stacked switches；13 steering drive axles；14 tho wheel supports 15 power steering gear assemblies；

Stacked switch：Left handle, mounting hole, right handles；

Stacked switch holder：Tapped through hole, steering drive axle 13；

Tho wheel support：Arc surface, through-hole, square flange face；

Water/land conversion integrates valve group：21 valve bodies, 22 first interfaces, 23 second interfaces, 24 third interfaces, 25 the 4th interfaces, 26 the 5th interfaces, 27 the 6th interfaces, 28 the 7th interfaces, 29 pressure detecting mouths；2.1 three-way magnetic valve；2.2 three-way magnetic valve；2.3 Mechanical speed governors valve；

Steering waterborne integrates valve group：31 valve bodies；3.1 first mechanical pressure regulator valves；3.2 second mechanical pressure regulator valves；3.3 first machines Tool speed governing valve；3.4 second mechanical speed governors valves；3.5 third mechanical speed governors valves；32 first interfaces；33 second interfaces；34 thirds connect Mouthful；35 the 4th interfaces；36 the 5th interfaces

Land hydraulic steering cylinder：41 first interfaces；42 second interfaces；43 first bulbs；44 second bulbs；

Hydraulic cylinder waterborne of coming about：51 first interfaces；52 second interfaces；53 bulbs；

Steering pump：71 output shafts, 72 through-holes；73 first interfaces, 74 second interfaces

Steering reservoir assembly：81 steering oil pipes；82 oil tank racks；801 oil outlets, 802 oil return openings, through-hole 821, through-hole 822

Specific implementation mode

Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.

To solve problem of the prior art, the utility model provides a kind of amphibious vehicle water/land integrated control formula power turn It is a kind of steering apparatus that mechanical electronic hydraulic is compound to device, as shown in Fig. 1,13, the transfer includes：Steering wheel with The conversion of power steering gear assembly 1, water/land integrates valve group 2, steering waterborne integrates valve group 3, land hydraulic steering cylinder 4, waterborne comes about Hydraulic cylinder 5, land and water change-over switch 6, steering pump 7, steering reservoir assembly 8, steering gear connection 9.Water/land conversion integrates valve group 2 and side It is connected between disk and power steering gear assembly 1 by hydraulic oil pipe；Water/land conversion integrates valve group 2 and steering pile-up valve waterborne It is connected by hydraulic oil pipe between group 3；4 one end of land hydraulic steering cylinder is connect with steering gear connection 9, land hydraulic steering cylinder 4 with Water/land conversion is connected between integrating valve group 2 by hydraulic oil pipe；Come about 5 one end of hydraulic cylinder and swimmer propulsion unit waterborne are come about company It connects, steering waterborne is integrated to be connected between valve group 3 and hydraulic cylinder 5 waterborne of coming about by hydraulic oil pipe；Land and water change-over switch 6 is integrated in On vehicle-mounted panel；Steering pump 7 is installed on the engine, and high voltage power source is provided from engine driving to system；Steering reservoir is total It at the oil inlet end of 8 one end and steering pump 7, is connected by oil pipe, another section turns with steering wheel and power steering gear assembly 1, water/land Change integrated valve group 2, steering waterborne integrates the oil revolving end of valve group 3, connected by oil pipe；Steering gear connection 9 and land hydraulic steering cylinder 4 Connection.Switch steering waterborne by land and water change-over switch 6 or road turns to, is realized and turned to by steering wheel rotation 11.

There is the present apparatus land and water to turn to, and switching is simple, realizes land and water handling maneuver, flexible arrangement using single direction disk 11 And many advantages, such as saving space, land and water steering gear ratio Independent adjustable.

Preferably, as shown in Fig. 1, steering wheel is located at power steering gear assembly 1 in vehicle cab, passes through driving Mounting bracket in cabin at instrument board is fixed；Water/land conversion integrates the mode that valve group 2 is fastened by bolts and is fixed on the cockpit right side Side partition board is connect between steering wheel and power steering gear assembly 1 by high-pressure and hydraulic oil pipe；Steering waterborne integrates valve group 3 The mode being fastened by bolts is fixed on cockpit right side partition, parallel with water/integrated valve group 2 of land conversion, is located at water/land conversion The rear of integrated valve group 2, water/integrated valve group 2 of land conversion and steering waterborne are connected between integrating valve group 3 by high-pressure and hydraulic oil pipe It connects；Land hydraulic steering cylinder 4 is located at below pilot set at car body underdeck, and one end is connect with the attached seat of car body underdeck, One end is connect with the rocking arm 91 in steering gear connection 9, and land hydraulic steering cylinder 4 and water/land conversion pass through high pressure between integrating valve group 2 Hydraulic oil pipe connects；Hydraulic cylinder 5 waterborne of coming about is located at hull back deck, and one end is connect with the attached seat in car body deck, one end It comes about and connect with swimmer propulsion unit, steering waterborne is integrated to be connected between valve group 3 and hydraulic cylinder 5 waterborne of coming about by high-pressure and hydraulic oil pipe It connects；Land and water change-over switch 6 is integrated on vehicle-mounted panel；Steering pump 7 is to become displacement gear pump, is installed by way of flanged joint On the engine, high voltage power source is provided from engine driving to system；Steering reservoir assembly 8 is mounted on by clamping hoop type holder It is internal that there is precise hydraulic oil rectifier, the oil inlet end of one end and steering pump 7 to lead on attached seat on vehicle body side deck Oil pipe connection is crossed, another section integrates valve group 2, steering pile-up valve waterborne with steering wheel and power steering gear assembly 1, water/land conversion The oil revolving end of group 3, is connected by oil pipe；Steering gear connection 9 is arranged at car body underdeck, wherein pitman arm and land steering liquid Cylinder pressure 4 connects, and subtie is connect by way of ball stud with wheel, when 4 piston rod of land hydraulic steering cylinder stretches, band turn To upper rocker arm 91, after the mechanical transfer of steering gear connection 9, final band motor car wheel deflects, and realizes turning function.

Preferably, the pressure of high-pressure and hydraulic oil pipe is 15 ~ 20Mpa.

Preferably, the amphibious vehicle water/land integrated control formula power steering gear is suitable for 5 tons or more of wheeled vehicle .

As shown in Fig. 2, steering wheel and power steering gear assembly 1 include steering wheel 11, stacked switch 12, steering drive axle 13, tho wheel support 14, power steering stgear 15, function are that driver can be grasped by steering wheel 11, steering drive axle 13 Vertical power steering stgear 15 converts the rotational angle of steering wheel to orientation, the output of quantitative high-pressure hydraulic power source, to realize Turning function land, waterborne.

Wherein steering wheel 11 is arranged on top, and steering wheel 11 is connect with steering drive axle 13, steering drive axle 13 and power Steering gear 15 connects.

As shown in attached drawing 2-1, stacked switch 12 is co-axially mounted with steering wheel 11, steering drive axle 13, is located at steering wheel 11 Lower section is fixed on by 3 mounting holes on stacked switch holder, and respectively there are one handle in both sides, and its role is to pilot controls It when steering wheel 11, can easily control that vehicle is remote, open and close of low beam light, turn to open and close and the vehicle of signaling lamp The prerequisite basic function of the wheeled vehicles such as the open and close of loudspeaker institute.

As shown in attached drawing 2-2, stacked switch holder is T-shape structure, coaxial with steering drive axle 13 and be welded in turn To transmission shaft outer wall, surface is machined with tapped through hole at 3, and the mounting hole to ensure stacked switch 12 is concentric, and combines The mounting hole processed on 12 mounting hole of switch and stacked switch holder, axis coaxle error be less than 0.5mm, function is to protect Stacked switch 12 is demonstrate,proved without radial rotating and axial float.

Preferably, power steering stgear 15 is hydraulic pressure line traffic control power steering stgear.

Further preferably, the power steering gear assembly 15 is fixed by tho wheel support 14 and driver storehouse instrument board, Handling maneuver land, waterborne is carried out by steering wheel 11 convenient for driver, steering wheel 11 is turned by steering drive axle 13 and power It is connected to the internal spline input terminal of 15 upper surface of device assembly, thus when pilot control steering wheel 11, power steering gear assembly 15 internal spline input terminal is rotated coaxially with steering wheel 11；Power steering gear assembly 15 has oil inlet P, oil return inlet T, oil outlet L, tetra- oil circuit interfaces of oil outlet R turn with the first interface of steering pump 7, the first interface of steering reservoir assembly 8, water/land respectively First interface 22, the connection of second interface 23 of integrated valve group 2 are changed, function is the high pressure liquid pressure oil that can provide steering pump 7, It is converted into the high-precision fixed displacement high pressure liquid pressure oil linear with the rotational angle of steering wheel, also, when steering pump 7 fails The high-precision fixed displacement low-pressure hydraulic linear with the rotational angle of steering wheel can be established manually by steering wheel 11 afterwards Oil ensures that system has certain emergent steering capability.Specifically, when steering wheel 11 rotates clockwise 360 degree, electronic-controlled power steering The oil drain quantity of 15 oil outlet R of device is 200ml, and when steering wheel 11 rotates counterclockwise 360 degree, oil outlet L oil drain quantities are 200ml.When After steering pump 7 fails, i.e., when the main oil inlet P of power steering stgear 15 is without hydraulic oil, it can be built by manual steering wheel rotation 11 Vertical hydraulic system pressure, but output pressure value≤5Mpa of oil outlet L at this time, oil outlet R, have emergent steering capability.

Preferably, power steering stgear（15）Oil inlet P, oil return inlet T are main oil inlet P, main oil return inlet T.

Preferably, as illustrated in figs. 2-3, tho wheel support 14 is opposite opened arc bracket structure, upper end symmetrical machining Have an arc surface, arc surface both sides symmetrical machining be useful for bolt, nut check through-hole, can ensure steering drive axle 13 Lower end splined shaft is co-axially mounted with 15 input terminal internal spline of power steering stgear, and can be locked and be turned to by symmetrical arc surface Transmission shaft 13, avoids axial float, effectively improves the reliability and ride comfort of transmission chain.

Preferably, 11 center of steering wheel is machined with internal splined hole, 13 top of steering drive axle is machined with splined shaft, is inserted into 11 center internal splined hole of steering wheel simultaneously passes through nut check, the connection of completion steering wheel 11 and steering drive axle 13；Turn to transmission Axis 13 is that top is spline shaft structure, and convenient for being connect with steering wheel 11, middle part is machined with stacked switch holder along diameter horizontal direction, Convenient for stacked switch 12 to be co-axially mounted and fix with steering drive axle 13, bottom is rectangular spline axle construction, is convenient for and power Steering gear 15 connects；14 bottom surface of tho wheel support is hollow square flange structure, and function is fixed power steering stgear 15 And the bottom rectangle splined shaft of steering drive axle 13 is enable to pass through and be engaged with 15 internal spline input terminal of power steering stgear；Direction 14 top of disc carrier is yoke configurations, and function is to ensure that steering drive axle 13 and 15 internal spline input terminal of power steering stgear are same Axis degree.

Preferably, as shown in attached drawing 3,4, water/land conversion integrate the conversion of 2 land and water of valve group integrate valve group include valve body 21, Two three-way magnetic valves 2.1,2.2, mechanical speed governors valves 2.3, check valve C1, check valve C2, water/land conversion integrate valve group 2 and pass through Through-hole on valve body 21 is fixed on the right side of driver on hull bottom plate, has 7 oil circuit interfaces, wherein first interface 22, the Two interfaces 23 are connect with steering wheel with the oil outlet L of power steering gear assembly 1 and oil outlet R, third interface 24, the 4th interface 25 The first interface 32 of valve group 3 is integrated with steering waterborne, second interface 33 is connect, the 5th interface 26, the 6th interface 27 and land turn It is connected to the first interface 41 of hydraulic cylinder 4, second interface 42, the oil return opening 802 of the 7th interface 28 and steering reservoir assembly 8 connects It connects.

Further as shown in Figure 3,4, the valve body 21 is cube structure, and the three-way magnetic valve 2.1,2.2, machinery are adjusted Fast valve 2.3 is located on cubical first face, and third to the 6th interface 24-27 is located on the second face adjacent with the first face, the One interface 22 and second interface 23 are located on third face adjacent with the first face and opposite with the second face, the 7th interface 28 be located at First on the adjacent fourth face in third face, and check valve C1, check valve C2 are located on the 5th face opposite with fourth face.By upper Structure arrangement is stated, water/land conversion can be made to integrate 2 compact overall structure of valve group, it is small.

Further preferably, the through-hole sixth face opposite with the first face is connect.The through-hole is four, is separately connected Four angles in the 6th face.

Further preferably, the fourth face and the 5th face are squares, remaining four face is rectangle.

Further preferably, the axis of interface 24,26,27 is located on same line, and the axis of interface 25,26 is located at another line On, two lines are orthogonal.

Further preferably, it is interface 27,24,25 successively from fourth face to the 5th face.

Further preferably, it is mechanical speed governors valve 2.3, three-way magnetic valve 2.1,2.2 successively from fourth face to the 5th face.

Further preferably, the interface 24,25,26,27 is arranged in valve body the same face, convenient for land hydraulic steering cylinder etc. The connection of load.

Further preferably, pressure detecting interface 29 has been reserved close to basal surface position in above-mentioned plane, it is entire convenient for detection Working state of system and system pressure.

Further preferably, first interface 22, second interface 23 are oil inlet interface, and steering wheel is separately connected by high-pressure oil pipe With the oil outlet L and oil outlet R of power steering gear assembly 1；Third interface 24, the 4th interface 25 are oil out port, third interface 24, the 4th interface 25 is oil out port, and the first interface 32, second that steering waterborne integrates valve group is separately connected by high-pressure oil pipe Interface 33；5th interface 26, the 6th interface 27 be oil outlet, by high-pressure oil pipe respectively with land hydraulic steering cylinder 4 first Interface 41, second interface 42 connect；7th interface 28 is oil return opening, so that hydraulic oil is flowed back to steering reservoir assembly by oil pipe connection 8, preferably it is connect with the oil return opening 802 with steering reservoir assembly 8.It is acted on can will be in steering wheel and power steering gear assembly 1 The oil circuit of the oil outlet L of power steering stgear 15, oil outlet R distribute to land hydraulic steering cylinder 4 and integrate valve group 3 simultaneously with steering waterborne The switching of land steering and steering state oil circuit waterborne is realized, and by the pressure to each oil circuit, flow calibration, to realize water Under upper steering state, the variable ratio of steering wheel stroke is set.

Mechanical speed governors valve（2.3）It is series at second interface（23）To the 6th interface（27）I.e. high pressure oil is by second interface（23） Flow into mechanical speed governors valve（2.3）Oil inlet, then by mechanical speed governors valve（2.3）Oil outlet flow to the 6th interface（27）, pass through Mechanical speed governors valve is adjusted manually（2.3）Second interface can be adjusted（23）To the 6th interface（27）Between the hydraulic oil unit interval Interior flow, and throttling part is passed through into the 7th interface（28）Return to steering reservoir assembly（8）；Check valve C1, check valve C2 with 7th interface（28）Connection constitutes the oil return line of land and water conversion pile-up valve.

Land and water conversion integrate valve group function be, the on-off model provided by land and water change-over switch 6, same to time control Two-bit triplet solenoid valve processed 2.1,2.2 is to switch oil circuit, to according to the state of land and water change-over switch 6, realize land steering, water The upper switching for turning to oil circuit, specifically, when solenoid valve 2.1 does not receive the signal of land and water change-over switch 6（It is preferred that 12V）When（I.e. " land steering " state）, oil circuit 23 to 27 keeps access, when solenoid valve 2.1 receives the signal of land and water change-over switch 6（It is preferred that 12V）When（That is " steering waterborne " state）, the holding access of oil circuit 23 to 24；When solenoid valve 2.2 does not receive land and water change-over switch 6 Signal（It is preferred that 12V）When（That is " land steering " state）, oil circuit 22 to 26 keeps access, receives land and water change-over switch 6 when 2.1 Signal（It is preferred that 12V）When（That is " steering waterborne " state）, the holding access of oil circuit 22 to 25.In addition, mechanical speed governors valve 2.3 is connected In oil circuit 23 to 27, can be adjusted in the hydraulic oil unit interval between 23 to 27 by 2.3 top knob of manual modulation valve Flow, adjustable range are 0 to 200ml/L, corresponding mechanical speed governors valve（2.3）0 ~ 1080 ° of knob stroke simultaneously passes through throttling part 7th interface 28 returns to steering reservoir assembly 8, and its object is to adjust the unit interval in 4 rod chamber of land hydraulic steering cylinder to inject Hydraulic oil volume, when to ensure steering wheel positive, counter-rotating equal angular, the stretching of land hydraulic steering cylinder 4 is shunk Displacement is equal；

C1, C2 are unidirectional stop valve, and function is that C1, C2 are connected to the 7th interface 28, constitute land and water and convert pile-up valve Oil return line, can effectively end and unload buffer brake when reverse impact pressure occurs in internal system, promote land and water conversion The safety and reliability of integrated valve group.

Preferably, integrated valve group 2 is converted into plug-in entirety valve group, by the through-hole on valve body 21, using spiral shell in water/land The mode of bolt fastening is fixed on the right side of driver on car body deck.

As shown in attached drawing 5,6, steering waterborne integrates valve group 3 in such a way that the through-hole on valve body 31 is using bolt fastening, It is fixed on the right side of driver on car body deck, is located at water/land conversion and integrates 2 rear of valve group.

It includes valve body 31, mechanical pressure regulator valve 3.1,3.2, mechanical speed governors valve 3.3,3.4,3.5, list that steering waterborne, which integrates valve group, To valve C3, check valve C4, wherein first interface 32, second interface 33 are oil inlet interface, and land and water is separately connected by high-pressure oil pipe Conversion integrates the third interface 24 of valve group 2, the 4th interface 25；Third interface 34, the 4th interface 35 are oil out port, pass through high pressure Oil pipe is separately connected the first interface 51 of hydraulic cylinder 5 hydraulic steering cylinder waterborne of coming about, second interface 52；5th interface 36 is oil return Mouthful, converted respectively with land and water by oil pipe integrate 28 interface of the 7th interface of valve group 2 it is in parallel after flow back to steering reservoir assembly 8.

Further as shown in Figure 5,6, the valve body 31 is cube structure, and the machinery pressure regulator valve 3.1,3.2, machinery are adjusted Fast valve 3.3,3.4,3.5 is located on the first face, and the interface 34,35, check valve C3, check valve C4 are located at and are connected with the first face On second face, interface 32,33,36 is located at the opposite third face in the second face.It is arranged by above structure, can make steering waterborne 3 compact overall structure of integrated valve group, it is small.

Further preferably, first face is hierarchic structure, and wherein the face where mechanical speed governors valve 3.5 is less than mechanical pressure regulation Face where valve 3.1,3.2, mechanical speed governors valve 3.3,3.4.

Further preferably, the mechanical pressure regulator valve 3.1,3.2 is located at first row, mechanical speed governors valve 3.3,3.4 is located at second Row, first row are parallel with second row.

Further preferably, it is first row, second row and mechanical speed governors valve 3.5 successively from the second face to third face.

Further preferably, check valve C3, check valve C4 are located at a row, and interface 34,35 is located at a row, two rows of parallel.

Further preferably, interface 34,35 is located at check valve C3, the tops check valve C4.

Further preferably, second face is square.

Further preferably, the interface 32,33,34,35, C1, C2 are all made of along the longitudinally asymmetric arrangement of valve body, effectively reduce Valve group space hold, and it is relatively beneficial to real vehicle connecting line.

Further preferably, the mechanical pressure regulator valve 3.1,3.2, mechanical speed governors valve 3.3,3.4, mechanical speed governors valve 3.5 are uniformly distributed It is placed in valve group top surface, it is easier to be adjusted in narrow space in the car.

The function that steering waterborne integrates valve group 3 is steering waterborne integrating the high-pressure hydraulic power source that valve group 2 is provided It is supplied to hydraulic cylinder 5 waterborne of coming about, turning function waterborne is realized, and by the pressure to each oil circuit, flow calibration, to realize Under steering state waterborne, the variable ratio of steering wheel stroke is set.

It is two-way independent oil supply circuit that steering waterborne, which integrates the inside of valve group 3, be first interface 32 respectively to third interface 34, 33 to the 4th interface 35 of second interface, in oil circuit first interface 32 to the mechanical pressure regulator valve 3.1 of series connection first in third interface 34, the One mechanical speed governors valve 3.3（That is first interface（32）To third interface（34）Pipeline on the first mechanical pressure regulator valve 3.1 of setting, the One mechanical speed governors valve 3.3）, by the first mechanical pressure regulator valve 3.1, the first mechanical speed governors valve 3.3 adjust respectively first interface 32 to Hydraulic fluid pressure between third interface 34 and flow；The mechanical pressure regulator valve of series connection second in 33 to the 4th interface 35 of second interface 3.2, the second mechanical speed governors valve 3.4 adjusts second interface respectively by the second mechanical pressure regulator valve 3.2, the second mechanical speed governors valve 3.4 Hydraulic fluid pressure and flow between 33 to the 4th interfaces 35；

It has connected between 33 to the 4th interface 35 of second interface and third mechanical speed governors valve 3.5 and has passed through valve body（31）It is internal Integrated sliding shutoff valve C 5 ensures the separately adjustable precision of two oil circuits to balance the flowed fluctuation between two independent oil paths；It is single It is unidirectional stop valve to valve C3, check valve C4, check valve C3, check valve C4 are connected to the 5th interface 36, constitute steering collection waterborne At the oil return line of valve group.

As shown in attached drawing 7,8, land hydraulic steering cylinder includes cylinder barrel, piston rod, bulb, clip, and cylinder barrel is land steering The main part of hydraulic cylinder, the special manufacture in end is an integral structure, and is processed as internal thread tubular structure, is pacified convenient for bulb Dress, is machined with asymmetrical grooves at two on the outside of internal thread tubular structure, and the effect of the groove is the locking by clip, in increase Threaded tubular structure and the externally threaded mesh degree of bulb.Bulb（43）Be coaxially installed in internal thread tubular structure, adjust to Locked clip device is used after suitable position, and bulb is avoided to generate axial float in internal thread tubular structure；Piston rod is coaxially installed on Inside cylinder barrel, end is equally special to be processed as internal thread tubular structure, is convenient for bulb（44）Installation, adjust to suitable position Locked clip device is equally used afterwards, avoids bulb（44）Axial float is generated with piston-rod end internal thread tubular structure.It has First interface 41, second interface 42, which by high-pressure oil pipe are separately connected land and water conversion and integrate the third interface the 25, the 4th of valve group 2, to be connect Mouth 26；Piston rod output end and cylinder barrel fixing end are internal thread tubular structure, but the innovative both ends internal thread that uses revolves To opposite design, effect is that rotating ballhead can be passed through（43）（44）And the entirety for changing land hydraulic steering cylinder is long Degree is installed convenient for real vehicle, is otherwise difficult to realize assembly and adjustment on real vehicle；And in piston rod output end and cylinder barrel fixing end Side is machined with groove, bulb be screwed onto respectively piston rod output end in cylinder barrel fixing end, and with locked clip device at groove, Fixed bulb screw-in depth.

Preferably, two interfaces can into and out of oil, when land hydraulic steering cylinder stretches out direction to piston rod to be moved, the One interface 41 is oil inlet, and 42 be oil outlet；When piston rod is moved to shrinkage direction, first interface 41 be oil outlet, 42 for into Hydraulic fluid port.

Preferably, first interface 41 is located at the side of bulb 43, second interface 42 is located at the side of bulb 44.

4 one end of land hydraulic steering cylinder connects simultaneously in such a way that bulb 43 and vehicle attached seat 101 use conical surface tight fit By nut check, one end is connected and is led to using by way of conical surface tight fit bulb 44 and the upper swing arm 91 of steering gear connection 9 Nut check is crossed, to realize land hydraulic steering cylinder（4）Fixation.

Land hydraulic steering cylinder function is to push away, draw the upper swing arm 91 of steering gear connection 9 into and out of oil mass according to itself, to Realize land turning function.

As shown in Fig. 9, hydraulic cylinder 5 one end waterborne of coming about is connect with vehicle attached seat 201, preferably passes through bulb 53 and car body Attached seat 201 is connected by the way of conical surface tight fit and by nut check, one end is by bulb 53 and swing arm of coming about using cone The mode of face tight fit connects and by nut check, to realize the fixation of land hydraulic steering cylinder 4, top oil circuit interface 51,52 34,35 interfaces that valve group 3 is integrated with steering waterborne are connect, and function is according to itself into and out of oil mass, by coming about Swing arm pushes away, drawing is come about, to realize turning function waterborne.

Land and water change-over switch 6 is integrated in full-vehicle control panel itself, and by pilot control, there are two working conditions for tool " land steering " " steering waterborne ", when " land steering " state, land and water change-over switch 6 is off, water/land Transform Sets At 2 inner joint 22 of valve group to interface 26, interface 23 is unimpeded to 27 oil circuit of interface, it is therefore intended that 4 fuel feeding of land hydraulic steering cylinder, Realize land turning function；When " steering waterborne " state, land and water change-over switch 6 is in closed state, integrated to water/land conversion Valve group 2 provides 12 volts of 2 tunnel dc switch amount signal to its water/land conversion and integrates in valve group 2, makes interface 22 to interface 24, interface 23 to interface 25 oil circuit it is unimpeded, to realize turning function waterborne.

As shown in Fig. 10, external splines output shaft 71 is arranged at 7 top of steering pump, and output shaft 71 is inserted into reserved on engine connect Mouthful, 7 side of steering pump has first interface 73,74 two-way hydraulic fluid port of second interface, first interface 73 fuel-displaced with steering reservoir assembly 8 Mouth 801 connects, and second interface 74 is connect with the P of power steering stgear 15 mouths；Further preferably, the first interface 73 is located at second 74 lower part of interface.

First interface 73 is the inlet port of pump, and second interface 74 is the oil outlet of pump.

As shown in Fig. 10,7 end face of steering pump is machined with through-hole 72, passes through the connection type of through-hole 72 that will turn by bolt To on 7 installation to engine of pump, the end face is arranged between output shaft 71 and first interface 73, steering pump（7）Inside is tooth Pump configuration is taken turns, function is to convert the mechanical energy that engine provides to system hydraulic power supply.

Further preferably, steering pump includes main body, and the main body is cylindrical structure.The output shaft 71 is located at main body Lower part.The first interface 73, second interface 74 are located at the side of theme.

Further preferably, first interface 73 is located at the lower part of second interface 74, and first interface 73 and second interface 74 It is distributed for stagger arrangement.

Further preferably, the caliber of first interface 74 is more than the caliber of second interface 74.

As shown in figure 11, steering reservoir assembly 8 is mainly made of steering reservoir 81, oil tank rack 82, and steering reservoir 81 has There are two oil circuit interface oil outlet 801, oil return opening 802, oil outlet 801 is connect with the interface 73 of steering pump 7, oil return opening 802 and The T mouths of power steering stgear 15, water/land conversion integrates the interface 28 of valve group 2, steering waterborne integrates the interface 36 of valve group 3, passes through three Connection for bbreather pipe connects.

As shown in Fig. 12, oil tank rack 82 is ring-shaped clip formula holder, is along the circumferential direction machined with through-hole at 2 respectively 821, steering reservoir 81 can be fixed on vehicle attached seat by bolted connection, be machined with through-hole 822 at 4, it can be with Steering reservoir 81 is locked at 82 internal spherical surface of oil tank rack by way of bolt and nut locking.

Preferably, the oil outlet 801, oil return opening 802 are located at the bottom of oil tank 81, wherein oil return opening 802 is located at oil The middle position of 81 bottom of tank, the edge position of 801 oil tank of hydraulic fluid port, 81 bottom.

Preferably, the oil tank rack 82 is located in relation to 81 lower part.It uses split-type design, main body to use and open Mouth formula cyclic structure penetrates after through-hole 822 and locking the outer surface that can be good at being bonded oil tank 81 by bolt, ensures oil tank 81 longitudinal directions do not loosen；Its attached seat is " L " type steel sectional material, and durable, one end is welded in car body corresponding position, and one section is machined with Through-hole 821 penetrates the bolt of through-hole 822, also cross through-hole 821, oil tank 81, oil tank rack 82 is whole fixed；This is seperated Structure make that oil tank 81, oil tank rack 82 constituted it is whole form elastic connection between attached seat, effectively eliminated oil tank 81, The entirety that oil tank rack 82 is constituted, to the stress of the attached seat bending part of " L " type and car body weld, improves during vibrations Reliability, test indicate that, which can bear the vibrations that acceleration is 10g or more for a long time.

The amphibious vehicle water of the utility model/land integrated control formula power steering gear turns with general amphibious vehicle water/land Fore-and-aft motion the difference is that, amphibious vehicle water/land integrated control formula power steering gear can using single direction disk Enough to complete, waterborne, land steering is not necessarily to other manipulation devices（Such as control stick, rudder）；Without biography between steering wheel and steering gear connection The mechanical connections such as moving axis, flexible arrangement save space；Involved amphibious vehicle water/land integrated control formula power steering gear Compact overall structure, integrated level is high, efficiently solves the amphibious vehicles such as water, land steering operation are cumbersome, and system occupancy interior space is big Steering technical barrier, and can expanded application in multiaxis amphibious vehicle.

Shown in Fig. 1 to Figure 13, amphibious vehicle water/land integrated control formula electronic-controlled power steering involved by the utility model patent The feature of device operation principle is as follows：

One, land steering pattern

When system works, the ends the P note first from the high pressure liquid pressure oil that steering pump 7 generates from interface 74 to power steering stgear 15 Enter, the T mouths of power steering stgear 15 are high-pressure oil passage oil revolving end, connect the interface 802 of steering reservoir 81；When land steering, driver First adjust land and water change-over switch 6 to position " land steering ", at this time in system oil-way power steering stgear 15 interface L, through water Land conversion valve set 2 is connected to the interface 42 of land hydraulic steering cylinder 4, interface R is connected to the interface 41 of land hydraulic steering cylinder 4, When driver turn steering wheel 11, lead to from the high pressure liquid pressure oil of P mouthfuls of entrance of power steering stgear according to the different trips of steering wheel L, R mouthfuls of interfaces for being quantitatively injected into land hydraulic steering cylinder 41,42 are crossed, 4 piston rod movement of land hydraulic steering cylinder is driven, are driven Upper rocker arm in dynamic steering gear connection 9 drives tie rod linkage movement, realizes land turning function.

Two, steering pattern waterborne.

When system works, driver adjusts land and water change-over switch 6 to position " steering waterborne ", at this point, land and water is converted first The solenoid valve 2.1,2.2 of integrated valve group 2 commutates simultaneously, and the L interface of line power steering stgear 15 is made to integrate valve group 2 with land and water conversion The interface 25 that integrated valve group 2 is converted in the connection of interface 24, R with land and water is connected to；Convert the interface 24 for integrating valve group 2 and waterborne turn in land and water It is connected to the interface 32 of integrated valve group 3；The interface 25 for integrating valve group 2 is converted in land and water and steering waterborne integrates the interface 33 of valve group 3 Connection；Flow is greatly reduced by working connection speed governing valve 3.5 first after connecting in interface 32, interface 33, then passes through waterborne turn respectively Pressure regulator valve 3.1,3.2 into integrated valve group 3, after speed governing valve 3.3,3.4 pressure regulation, speed governing with the interface 51 of hydraulic cylinder 5 waterborne of coming about, 52 connections；Driver turn steering wheel 11, the high pressure liquid pressure oil entered from 15 interface P of power steering stgear, not according to steering wheel Same stroke converts the interface 24 for integrating valve group 2, interface 25 through land and water by L, R mouthfuls；Steering waterborne integrates the interface of valve group 3 32, interface 33 are quantitatively injected into interface 51,52 chamber of interface of hydraulic cylinder 5 waterborne of coming about, drive its piston rod movement, push spray The mouth of a river or deflection of coming about, realize turning function waterborne.

The technical problem underlying of the utility model patent is：1, steering gear 15 can ensure steering wheel 11 at left and right turn When dynamic, L or R mouthfuls of oil pump capacity are equal and in a linear relationship with steering wheel rotational angle, and preferably steering wheel often rotates 360 °, goes out Oil mass is 200ml, and error is not more than 1%FS.2, it when loosening steering wheel 11, can be connected between 15L, R mouthfuls of steering gear, essence Effect is, so that land hydraulic steering cylinder 4, the rod chamber waterborne for coming about hydraulic cylinder 5 is connected to rodless cavity, can eliminate hydraulic cylinder The pressure difference that piston both sides are generated due to actual loading, to enable steering wheel to have certain self-aligning ability.3, water Land conversion integrates valve group 2 can be quick, synchronization by the land hydraulic steering cylinder of L, R oil communication of power steering stgear or waterborne turn Rudder hydraulic cylinder；The oil inlet quantity that 4 rodless cavity of land hydraulic steering cylinder can be demarcated by mechanical speed governors valve, it is intended that the side of making When turning left and right equal angular to disk, the stretching of land steering hydraulic cylinder piston rod, shifting of condensing must be equal.4, steering collection waterborne It must be greatly reduced manually into after oil stream amount first by mechanical speed governors valve 3.5 at valve group 3, then by pressure reducing valve 3.1,3.2, Speed governing valve 3.3,3.4 accurately controls, and demarcates the outlet pressure and flow of 34,35 output ends.5, the cylinder barrel of land hydraulic steering cylinder 4 Fixing end is all made of steering ball end connection type with piston rod output end, and cylinder barrel fixing end is machined with interior spiral shell with piston rod output end Line is easily installed steering ball end, and side is machined with groove, and clip is easy to use to fix steering ball end, is connected using two sections of ball pins Mode can effectively eliminate hydraulic cylinder during driving steering gear connection and the non-coplanar force that generates, reliability and efficiency are bright The aobvious hydraulic cylinder higher than using the connection of the forms such as oscillating bearing is extremely applicable to wheel steering system use.

It should be noted that skilled person can easily appreciate that, the heavy type involved by the utility model patent Circulating ball type bimodulus electric power steering device can be applied in the above described manner in someone, unpiloted different types of wheeled vehicle In steering, and the case where not departing from the spirit and scope of the utility model patent being defined by the following claims Under, various various forms of changes and change can be carried out to the utility model patent.

Although the utility model has been disclosed in the preferred embodiments as above, the utility model is not limited to this.Any Field technology personnel can make various changes or modifications, therefore this practicality without departing from the spirit and scope of the utility model Novel protection domain should be subject to claim limited range.

Claims (7)

1. a kind of land hydraulic steering cylinder of amphibious vehicle, including cylinder barrel, piston rod, bulb, clip, in one end of cylinder barrel is processed as Threaded tubular structure is installed convenient for bulb, is machined with groove on the outside of internal thread tubular structure, the effect of the groove is to pass through card The locking of hoop；Piston rod is coaxially installed on inside cylinder barrel, and output end is internal thread tubular structure, the land hydraulic steering cylinder With first interface, second interface；Piston rod output end and the internal thread of cylinder barrel one end are oppositely oriented.

2. the land hydraulic steering cylinder of amphibious vehicle as described in claim 1, two interfaces can be into and out of oil, when land steering liquid When cylinder pressure is moved to piston rod stretching direction, first interface is oil inlet, is oil outlet；When piston rod is moved to shrinkage direction, First interface is oil outlet, is oil inlet.

3. the land hydraulic steering cylinder of amphibious vehicle as described in claim 1, first interface are located at the side of bulb, second interface Positioned at the side of bulb.

4. the land hydraulic steering cylinder of amphibious vehicle as described in claim 1, land hydraulic steering cylinder one end pass through bulb and vehicle The attached seat of body is connected by the way of conical surface tight fit and by nut check, and one end is adopted by the upper swing arm of bulb and steering gear connection It is connected with the mode of conical surface tight fit and passes through nut check.

5. the land hydraulic steering cylinder of amphibious vehicle as described in claim 1, the first interface, second interface pass through high pressure oil Pipe is separately connected third interface, the 4th interface that land and water conversion integrates valve group.

6. a kind of amphibious vehicle transfer, including steering wheel and power steering gear assembly（1）, the conversion of water/land integrate valve group （2）, steering waterborne integrate valve group（3）, land hydraulic steering cylinder（4）, hydraulic cylinder waterborne of coming about（5）, land and water change-over switch（6）、 Steering pump（7）, steering reservoir assembly（8）, steering gear connection（9）, which is characterized in that water/land conversion integrates valve group（2）With steering wheel With power steering gear assembly（1）Between connected by hydraulic oil pipe；Water/land conversion integrates valve group（2）With steering pile-up valve waterborne Group（3）Between connected by hydraulic oil pipe；Land hydraulic steering cylinder（4）One end and steering gear connection（9）Connection, land steering hydraulic Cylinder（4）Valve group is integrated with water/land conversion（2）Between connected by hydraulic oil pipe；Hydraulic cylinder waterborne of coming about（5）One end is pushed away with waterborne It comes about connection into device, steering waterborne integrates valve group（3）With hydraulic cylinder waterborne of coming about（5）Between connected by hydraulic oil pipe；Land and water Change-over switch（6）It is integrated on vehicle-mounted panel；Steering pump（7）Installation on the engine, provides high from engine driving to system Pressure power source；Steering reservoir assembly（8）Oil outlet（801）With steering pump（7）First interface（73）It is connected by oil pipe, oil return Mouthful（802）With steering wheel and power steering gear assembly（1）Oil return opening, the conversion of water/land integrate valve group（2）The 7th interface （28）, steering waterborne integrate valve group（3）The 5th interface（36）, connected by oil pipe, wherein land hydraulic steering cylinder waterborne is Land hydraulic steering cylinder described in one of claim 1-5.

7. amphibious vehicle transfer as claimed in claim 6, which is characterized in that the steering wheel and power steering gear assembly （1）Including steering wheel（11）And power steering gear assembly（15）；The power steering gear assembly（15）With driver storehouse instrument board It is fixed, steering wheel（11）Pass through steering drive axle（13）With power steering gear assembly（15）The internal spline input terminal of upper surface connects It connects, to work as pilot control steering wheel（11）When, power steering gear assembly（15）The co-axial rotation of internal spline input terminal；

Power steering gear assembly（15）With tetra- oil inlet P, oil return inlet T, oil outlet L and oil outlet R oil circuit interfaces, respectively with Steering pump（7）Second interface（74）, steering reservoir assembly（8）Oil return opening（802）, the conversion of water/land integrate valve group（2） One interface（22）, second interface（23）Connection；

Water/land conversion integrates valve group（2）Pass through valve body（21）On through-hole be fixed on the right side of driver on hull bottom plate, have 7 oil circuit interfaces, wherein first interface（22）, second interface（23）With steering wheel and power steering gear assembly（1）Oil outlet L is connected with oil outlet R, third interface（24）, the 4th interface（25）Valve group is integrated with steering waterborne（3）First interface（32）、 Second interface（33）Connection, the 5th interface（26）, the 6th interface（27）With land hydraulic steering cylinder（4）First interface（41）、 Second interface（42）Connection, the 7th interface（28）With steering reservoir assembly（8）Oil return opening（802）Connection；

Steering waterborne integrates valve group（3）Pass through the through-hole on valve body（31）It is fixed on driver's rear body bottom plate, has 5 A oil circuit interface, wherein first interface（32）, second interface（33）Valve group is integrated with water/land conversion（2）Third interface（24）、 4th interface（25）Connection, third interface（34）, the 4th interface（35）With hydraulic cylinder waterborne of coming about（5）First interface（51）、 Second interface（52）Connection, the 5th interface（36）With steering reservoir assembly（8）Oil return opening（802）Connection；

Land hydraulic steering cylinder（4）One end passes through the first bulb（43）With vehicle attached seat（101）Connection, the other end pass through the second ball Head（44）With steering gear connection（9）Upper swing arm（91）Connection, to realize land hydraulic steering cylinder（4）Fixation, land steering Hydraulic cylinder（4）Top oil circuit first interface（41）Valve group is integrated with water/land conversion（2）The 5th interface（26）Connection, second connects Mouthful（42）Valve group is integrated with water/land conversion（2）The 6th interface（27）Connection；

Hydraulic cylinder waterborne of coming about（5）One end passes through third bulb and vehicle attached seat（201）Connection, the other end pass through the 4th bulb （53）It is connect with waterborne come about, to realize hydraulic cylinder waterborne of coming about（5）Fixation, the first interface of oil circuit（51）, second connect Mouthful（52）Valve group is integrated with steering waterborne（3）Third interface（34）, the 4th interface（35）Connection；

Land and water change-over switch（6）It is integrated in full-vehicle control panel itself, by pilot control, there are two working condition " lands for tool Upper steering " " steering waterborne ", when " land steering " state, land and water change-over switch（6）It is off, water/land Transform Sets At valve group（2）Interior first interface（22）To the 5th interface（26）, second interface（23）To the 6th interface（27）Oil circuit it is unimpeded, mesh Be to land hydraulic steering cylinder（4）Fuel feeding realizes land turning function；When " steering waterborne " state, land and water conversion is opened It closes（6）In closed state, first interface（22）To third interface（24）, second interface（23）To the 4th interface（25）Oil circuit It is unimpeded, to realize turning function waterborne；Steering pump（7）On installation to engine, steering pump（7）With two-way hydraulic fluid port interface, First interface（73）With steering reservoir assembly（8）Oil outlet（801）Connection, second interface（74）With steering wheel and electronic-controlled power steering Device assembly（1）Oil inlet P connection, function is to provide hydraulic power supply for system；

Steering reservoir assembly（8）Including steering reservoir（81）, oil tank rack（82）, steering reservoir（81）Pass through oil tank rack（82） It fixes on the car body, there are two oil circuit interfaces for tool, are oil outlet respectively（801）, oil return opening（802）, oil outlet（801）With turn To pump（7）First interface（73）Connection, oil return opening（802）With steering wheel and power steering gear assembly（1）Oil return inlet T, water/ Land conversion integrates valve group（2）The 7th interface（28）, steering waterborne integrate valve group（3）The 5th interface（36）Connection.