CN107218327A - Double-spring shock absorber assembly - Google Patents
Double-spring shock absorber assembly Download PDFInfo
- Publication number
- CN107218327A CN107218327A CN201710589104.4A CN201710589104A CN107218327A CN 107218327 A CN107218327 A CN 107218327A CN 201710589104 A CN201710589104 A CN 201710589104A CN 107218327 A CN107218327 A CN 107218327A
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- Prior art keywords
- spring
- pallet
- shock absorber
- double
- auxiliary
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/121—Attachments or mountings adjustable, e.g. to modify spring characteristics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A kind of Double-spring shock absorber assembly, applied in vehicle hanging, it includes main spring, auxiliary spring, main spring seat, auxiliary spring seat, main spring pallet, auxiliary spring pallet, damper, upper piston rod, lower guide mechanism, sliding shoe, upper mounting blocks, lower mounting blocks and locking nut are the characteristics of specific：Main spring pallet and auxiliary spring pallet are fixedly connected with the outer barrel of damper, upper mounting blocks and main spring seat is connected with upper piston rod locking, auxiliary spring seat is fixedly connected with sliding shoe, main spring precompressed is fixed between main spring seat and main spring pallet, and auxiliary spring precompressed is fixed between auxiliary spring seat and auxiliary spring pallet；Using the suspension of this Double-spring shock absorber assembly, and suitable main spring and auxiliary spring and damper are selected, the comfortableness of vehicle can be improved simultaneously and handling.
Description
Technical field
The present invention relates to the suspension arrangement technical field of vehicle, belong to a kind of Double-spring shock absorber assembly.
Background technology
Common vehicle all can cause the injustice of vehicle body during normal traveling because of the change in speed and direction
Weighing apparatus, while pavement roughness also can produce impact by wheel and suspension to vehicle body, general vehicle is in design and manufacturing process
It is fitted with spring and comes from the impact of wheel to slow down, to improve comfortableness, but the elasticity of spring in itself can causes car again
The vibration of body or vehicle body, therefore most of vehicle is all installed in parallel damper to slow down the excessive shock of vehicle body with spring, with
Improve handling, but this unavoidably brings the reduction of comfortableness again.Therefore the design and manufacture of common vehicle are thought while carrying
It is high-comfort and it is handling be highly difficult.If the hardness of timely adjustment spring and the size of damping, can take into account comfortableness
With handling requirement, but this needs complicated electronic system to complete, while this also brings along higher manufacture and used into
This simultaneously increases maintaining difficulty.
It is with the present invention most close known patent《Using the spring of flexible backbone is combined with to improve the car of stiffness curve
Wheel suspension device》(CN97181615.8) Vehicle wheel suspensions that, this invention is related to use a helical spring and a holding
Flexible backbone is connected, a part of spring is compressed in normally travel position, is allowed to be maintained at compressive state, it is different to obtain two kinds
Stiffness curve, its turning point is located near normally travel position；During compression, when whole helical springs are compressed, and loosened, only
The uncompressed part of spring is relaxed, therefore, and suspending apparatus is asymmetric, and rigidity when loosening is more than rigidity during compression.
On the one hand, each skeleton includes two fixtures, and all or part of one spring coil of a fixture and helical spring is engaged,
Another fixture is either engaged with all or part of another spring coil of spring or matched with the housing of shock absorber
Close, on the other hand, each skeleton includes a longitudinal elements, and the longitudinal elements is deformable in compression, indeformable when loosening, with two
Individual fixture is connected, at least two spring coils of skeleton limitation and compression helical spring.But this invention is only limitted in small range
The interior rigidity for changing spring, the driving performance of vehicle can be still improved in the case where not needing QS, but same
One spring adds that change of the device to its rigidity is limited, while without reference to the damping content of reduction shock absorber, can not be from
Fundamentally improve manipulation and the comfort property of suspension arrangement.Another known patent close with the present invention《After a kind of dual spring
Damper》(CN201120451519.3) the utility model embodiment discloses a kind of double-spring rear shock absorber, including damper,
Also include also being arranged with precompressed is more than the first outer spring second on the outside of the first outer spring for being sheathed on damper, the first outer spring
Outer spring；Damper includes cylinder body and piston rod, and the outer end of piston rod is provided with upper binding head, and upper binding head is provided with spring
Seat；The upper end of first outer spring and the second outer spring is installed on spring base；The lower end of first outer spring and the second outer spring
It is installed on cylinder body.The double-spring rear shock absorber that the utility model is provided, including the first outer spring and the second outer spring, motor load
When lighter, there is the second outer spring to play main carrying cushioning effect, when motor load is heavier, the first outer spring and the second outer bullet
Spring carries out carrying damping together, and the double-spring rear shock absorber that the utility model is provided can strengthen the energy of damper bearing load
Power, meet motorcycle load-carrying it is larger when shock attenuation needs, the spring in this patent can effectively be increased using two spring parallel connections
Bearing capacity, but with the no fundamental difference of effect of a spring, with four suspension automobiles on there is no balanced action.Same
Also one known patent《Double piston-rod hydro-pneumatic spring cylinder》(CN105179552A) present invention proposes double piston-rod oil gas bullet
Spring cylinder, including two hydro-pneumatic spring cylinders, two hydro-pneumatic spring cylinders constitute cascaded structure back to setting；The work of the hydro-pneumatic spring cylinder
Having on stopper rod on check valve, piston has damping hole；Filled with high pressure nitrogen in one hydro-pneumatic spring cylinder, filled in a hydro-pneumatic spring cylinder
There is low-pressure nitrogen.Using the present invention, when unloaded lotus and low load, the compression of hydro-pneumatic spring cylinder filled with low-pressure nitrogen, because filled with
The blowing pressure is high in the hydro-pneumatic spring cylinder of high pressure nitrogen, equivalent to rigid body, the hydro-pneumatic spring cylinder one only filled with low-pressure nitrogen
The check valve and damping hole at end complete the effect of elastomer and shock absorber, when load reaches certain value, filled with low-pressure nitrogen
The residual buffer stroke of hydro-pneumatic spring cylinder shortens, and buffering effect is deteriorated, and the hydro-pneumatic spring cylinder filled with high pressure nitrogen starts compression,
Two hydro-pneumatic spring cylinders (equivalent to spring body) concur, with good cushion stroke.But this is still a spring
With the simple parallel connection of damper, it can not really play a part of autobalance vehicle.
The content of the invention
The main object of the present invention is to provide a kind of Double-spring shock absorber assembly, applied in vehicle hanging, when vehicle just
Often traveling and in safe range acceleration and deceleration or turn during, this Double-spring shock absorber assembly can pass through two springs
Compound action effectively reduce the inclination, pitching, yaw of vehicle body, the uneven energy that the impact for making to come from ground or car body are produced
Effectively absorbed by suspension, keep wheel to the adhesive force on ground to greatest extent, braked with the driving for giving full play to wheel
Effect, greatly improves stability of the vehicle when running at high speed and turning.In addition when the loading capacity of vehicle changes, vehicle
All the time can keep fixed bodywork height, the geometrical relationship of suspension also ensure that it is constant so that car body and road surface or track
Plane remains required parastate, meets or exceeds the effective utilization of active suspension universal at present.
General vehicle possesses four or more suspension arrangement, and the present invention passes through this Double-spring shock absorber assembly
Design, although the stroke of a suspension changes, but the vehicle body caused by vehicle body conduction to other suspensions disturbs very little,
The stroke of other suspensions, which remains unchanged, keeps constant, and a plan view is determined according to 3 points, and the balance of vehicle body can continue to keep.
It is known that because road surface or the natural out-of-flatness of track are random, the impact formed is seldom to more than one
Wheel occur simultaneously, artificial deceleration device is possible to cause two wheels while being impacted, but this is infrequently sent out
It is raw, therefore in most cases, when wheel interference within the specific limits when, vehicle body can keep the suspension row of more than three
Journey does not change, and the most of the time can also keep the balance of vehicle body automatically.
The realization of above-mentioned purpose realized by installing dual spring shock absorption assembly in suspension, this suspension
When load changes between the precompression F of main spring and the maximum compression f of auxiliary spring, the stroke of suspension can't become
Change, this is it is possible to prevente effectively from the balance of vehicle body occurs unnecessary change and influences handling, when the stroke of one of suspension
When being changed because of wheel disturbances, the stroke change of this suspension can produce a perturbed force to other three suspensions, and this is done
If disturbing influence of the power by vehicle body to other three suspensions no more than main spring precompression F and the maximum compression f of auxiliary spring
Scope when, then strokes of these three suspensions also do not change equally, so that whole vehicle body can still keep balance,
Now the comfortable sex expression of vehicle is good.Can be by main spring most in the design and manufacturing process of Double-spring shock absorber assembly
The parameter for the elastic force f that the minimum stroke of precompression F and auxiliary spring during big stroke are produced optimizes design, and we are in design
When, if main spring precompression is more than the balanced load of suspension, the maximum compression of auxiliary spring is less than balanced load, vehicle body interference
It is not enough to cause the stroke of suspension to change, therefore the compression damping of damper can be reduced, while the compression damping of very little
The impact to suspension is reduced, the vehicle body interference to other suspensions is also reduced, has vital effect to improving comfortableness.
Designed by Optimal Parameters, vehicle can allow vehicle body automatically to keep balance, make car under general travel situations
Possesses good handling and comfortableness, under special circumstances, if subjected to the perturbed force that the suspension of impact is produced exceedes it
When the precompression F and auxiliary spring maximum compression f of his three suspension main springs scope, phase can occur for the stroke of these three suspensions
It should change, but because there is the presence of precompression, the stroke of these three suspension arrangements can return to the equilbrium position of vehicle body, make quickly
The handling of vehicle can also return to optimum state quickly, thus be equipped with the suspension of this Double-spring shock absorber assembly just can be with
The handling and comfortableness of vehicle is improved simultaneously, and this was the technology being never disclosed in former design and product, it is this outstanding
The effect by Double-spring shock absorber assembly is hung, most of percussion can be effectively filtered out, reduce the vibration of car body, and
The cost of suspension can effectively be reduced.
What the present invention was realized in：
A kind of Double-spring shock absorber assembly, is installed on vehicle hanging, it include main spring, auxiliary spring, main spring seat,
Auxiliary spring seat, main spring pallet, auxiliary spring pallet, damper, upper piston rod, lower guide mechanism, sliding shoe, upper mounting blocks, under
Mounting blocks and locking nut, described main spring pallet, auxiliary spring pallet are fixedly connected with the cylinder of damper, upper mounting blocks and
Main spring seat is connected with upper piston rod locking, and auxiliary spring seat is connected with the sliding shoe locking on lower guide mechanism, main spring precompressed
It is fixed between main spring seat and main spring pallet, auxiliary spring precompressed is fixed between auxiliary spring seat and auxiliary spring pallet, upper work
Upper mounting blocks on stopper rod are connected with vehicle frame, and lower mounting blocks are connected with suspension, and main spring and auxiliary spring can use common spiral shell
Revolve spring, it would however also be possible to employ eccentric progressive helical spring, gas spring and leaf spring, change upper spring seat, lower spring cup, upper bullet
The structure of spring bracket disk and lower spring pallet can just be connected from different springs, and main spring can meet suspension using gas spring and hold
The requirement that load power is dynamically adjusted, such as the larger car of load variations, load-carrying vehicle etc., while some have more high-comfort and behaviour
The sedan limousine and race vehicles that control property is required are also required to adjust and control the bearing capacity of suspension, and select this double of gas spring
Spring damper assembly, it is not necessary to which complicated servomechanisms can just realize good comfortableness and handling requirement.
When designing Double-spring shock absorber assembly, main spring pallet and auxiliary spring pallet can use a global facility, on
Surface is designed as main spring pallet, and lower surface design is auxiliary spring pallet, after two spring trays unite two into one, can be saved outstanding
The space of extension, from longer spring, improves comfortableness.
As described above, using the main spring pallet and auxiliary spring pallet of a global facility, being designed to a flat cup
Shape, cup-shaped outer and is returned along being main spring tray, and cup-like inner and bottom are auxiliary spring pallet, can also so allow main spring and
The itinerary part of auxiliary spring is overlapping, in limited suspension length, from longer spring, effectively lifts comfortableness.
Likewise, sometimes for regulation main spring and the bearing capacity of auxiliary spring, the outer barrel of damper and main spring pallet and
Auxiliary spring pallet is using threaded connection, and main spring pallet, auxiliary spring pallet can be adjusted axially on damper outer barrel, and use spiral shell
Mother's locking, the soft or hard of spring can be so adjusted as required, adjust the bearing capacity of suspension, adjusted bodywork height, met numerous
The personalized demand of handling and comfortableness.
This Double-spring shock absorber assembly is to meet handling requirement, in the parameter selection of main spring, it is desirable to which it is pacified
Precompression F after dress on damper during range hangs born load G, actual design more than vehicle balance when static
Value F≤1.1G, maximum elastic force f of the auxiliary spring at shortest route position hang born load less than vehicle balance when static
G, actual design value f≤0.9G.Certainly different vehicles is directed to, the parameter design value of main spring has difference, and exercise performance will
High and center of gravity very high double-deck passenger stock or the larger goods stock of load change is sought, precompression F may be more than 1.5 times
Load G, the design load of auxiliary spring will select the load G that maximum value of elastic f is less than 0.8 times.
This Double-spring shock absorber assembly is the requirement for meeting comfortableness simultaneously, also requires the upper piston rod resilience of damper
When relative damping factor setting value be more than 0.3, main piston rod compress when relative damping factor setting value be less than 0.1.
When designing Double-spring shock absorber assembly, the lower guide mechanism is designed as to the damper of upside-down mounting, it is and above
Damper shares bottom, coaxially arranged, sliding shoe be upside-down mounting damper lower end stretch out can axial linear movement lower piston rod,
Auxiliary spring seat and lower mounting blocks are fixedly connected with lower piston rod, and are locked with locking nut, and as needed, sliding bar can also
The certain damping of design, to meet application of the special car in special circumstances.
The length of some suspension damper cylinders is limited by suspension space, and lower piston rod can not complete slip in cylinder, can
One sliding bar is fixedly connected with the bottom in damper cylinder, sliding bar upper end, which is fixedly connected on damper bottom, sliding bar, matches somebody with somebody
It is equipped with the company of slip on the hollow sliding sleeve that can be moved along a straight line, the sliding bar between hollow sliding sleeve and shock absorber cylinder and locking nut
Connect, sliding bar lower end has screw thread to be connected with locking nut, depart from sliding bar, auxiliary spring disk and lower mounting blocks and cunning for anti-anti-skid sheath
Set is fixedly connected, and is fixedly mounted on after auxiliary spring precompressed between auxiliary spring pallet and auxiliary spring seat.
When some suspension spaces there are more limitations, shock absorber cylinder lower end case is designed as leading for slide bar type
To mechanism, sliding shoe be one can in shock absorber cylinder body case linear slide hollow sliding sleeve, auxiliary spring disk and sliding sleeve are consolidated
Fixed connection, is linked together by lower mounting blocks with suspension lower branch arm.
, can be using lower guide mechanism and sliding shoe is arranged apart sets if described auxiliary spring uses leaf spring
Meter, sliding shoe is connected with the axletree fixing device in the middle part of leaf spring, and guiding mechanism is fixed with the solid main spring pallet lower end in lower end
Connection, sliding shoe contacts with guiding mechanism after leaf spring is compressed, this structure can also use guiding mechanism with it is board-like
Spring is connected, and sliding shoe is fixedly connected with main spring pallet, and actual selection can be mainly used in design institute according to design needs
There is suspension for the goods stock of leaf spring or only rear-mounted uses the cross-country and size passenger/cargo of leaf spring.
Present invention has the advantages that：By Double-spring shock absorber compound action, make vehicle hanging possess three it is different
Work rigidity, and main spring is operated in a high rigidity interval, mainly deals with the upward impact to suspension for coming from road surface, now
Compressive state is suspended in, auxiliary spring can not continue compression, and only main spring is compressed under low resistance state, in high-damping
Precompressed position is returned under state, because influence very little of impact during low resistance to vehicle body, can keep the comfortableness of vehicle,
Recover under high-damping state, vibration can be eliminated without influenceing comfortableness.Auxiliary spring is operated in a Low rigidity interval, mainly
The downward impact to suspension for coming from road surface is dealt with, stretched condition is now suspended in, because the presence of precompression, main spring
Elongation can not be continued, only auxiliary spring is in resilience state, it is same because the damping very little of auxiliary spring or not having, to hanging
The impact very little of extension, can keep the comfortableness of vehicle.The high rigidity interval worked except above main spring and auxiliary spring work
Low rigidity it is interval, it is also interval in the presence of all idle superelevation rigidity of a main spring and auxiliary spring, in this superelevation stiffness region
In, although the stress of suspension changes within the specific limits, but the stroke of suspension will not change, so as to automatic guarantor
The balance of vehicle is held, and without delayed, realizes the performance requirement more than active suspension, deals with and comes from vehicle body to suspension
Interference.
The suspension arrangement for configuring this Double-spring shock absorber assembly is suitable for most highway and rail vehicle, for negative
The passenger stock that lotus varies less is especially suitable, not only reduces manufacturing cost, also improves handling and comfortableness simultaneously.
Brief description of the drawings
Fig. 1 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 1.Main spring and secondary bullet
Spring uses common helical spring, and the load now hung is smaller, is precompressed shape when main spring is in range in figure
State, auxiliary spring is in range state, and main spring and auxiliary spring do not continue to be compressed, and are maintained at preloading condition.
Fig. 2 is Double-spring shock absorber assembly schematic diagram when being suspended in balancing the load in the embodiment of the present invention 1.Now
Load G when the load of suspension is balances static, main spring is in preloading condition during range, and auxiliary spring is compressed to most
It is short.
Fig. 3 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 2, and main spring (1) is adopted
With eccentric progressive helical spring, auxiliary spring (4) uses normal spiral spring.
Fig. 4 is Double-spring shock absorber assembly schematic diagram when being suspended in balancing the load in the embodiment of the present invention 2.
Fig. 5 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 3, and main spring (1) is adopted
With air spring, auxiliary spring (4) uses normal spiral spring.
Fig. 6 is Double-spring shock absorber assembly schematic diagram when being suspended in balancing the load in the embodiment of the present invention 3.
Fig. 7 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 4, Double-spring shock absorber
Assembly lower guide mechanism (9) is the sliding bar that bottom is stretched out, and sliding shoe (8) is the hollow sliding sleeve being enclosed on sliding bar, and this figure is
Hollow sliding sleeve is in slide bar least significant end.
Fig. 8 is Double-spring shock absorber assembly position view when being suspended in balancing the load in the embodiment of the present invention 4.
Fig. 9 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 5, Double-spring shock absorber
Outer cylinder body lower case as the slide bar of lower guide mechanism (9), sliding shoe (8) is to be sleeved on the sliding sleeve outside damper,
This when sliding sleeve be in slide bar least significant end.
Figure 10 is that Double-spring shock absorber assembly position when being suspended in balanced load in the embodiment of the present invention 5 is illustrated
Figure.
Figure 11 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 6, now dual spring
The lower guide mechanism (9) and sliding block (8) of vibration damper assembly are arranged apart, and lower guide mechanism (9) is connected with main spring pallet (3),
Sliding block (8) is fixedly connected with the fixing device (15) of leaf spring axletree (14).
Figure 12 is that Double-spring shock absorber assembly position when being suspended in balanced load in the embodiment of the present invention 6 is illustrated
Figure.
Embodiment：
Referring to Fig. 1, Fig. 2, in embodiment 1, main spring 1 in figure, auxiliary spring pallet 2, main spring pallet 3, auxiliary spring 4 is secondary
Spring base 5, lower mounting blocks 6, locking nut 7, sliding shoe 8, lower guide mechanism 9, damper 10, upper piston rod 11, main spring seat
12, upper mounting blocks 13, axletree 14, axletree fixing device 15.
In embodiment 1, main spring 1 is pre- is pressed between main spring seat 12 and main spring pallet 3, and auxiliary spring 4 is installed on pair
Between spring base 5 and auxiliary spring pallet 2, main spring pallet 3 and auxiliary spring pallet 2 are fixed on damper 10, and use screw thread
Connection, pallet can be adjusted up and down within a certain height, and lower guide mechanism 9 is the cylinder of the damper of a upside-down mounting, sliding
Motion block 8 is lower piston rod, is slided up and down in lower guide mechanism 9, and upper mounting blocks 13 and main spring seat 12 is fixed by locking nut 7
In the upper end of upper piston rod 11, lower mounting blocks 6 and auxiliary spring seat 5 is fastened on the lower piston rod lower end of sliding shoe 8 with locking nut 7.
Fig. 1 is Double-spring shock absorber assembly schematic diagram when hanging unloaded in the embodiment of the present invention 1.That now hangs is negative
Lotus is smaller, and it is precompressed shape when main spring is in range that main spring and auxiliary spring, which are used in common helical spring, figure,
State, auxiliary spring is in range state, and main spring and auxiliary spring are the state before being installed on suspension, hang no load
When be also this state.
Fig. 2 is Double-spring shock absorber assembly schematic diagram when being suspended in balancing the load in the embodiment of the present invention 1.Now
Load G when the load of suspension is balances static, main spring is in preloading condition during range, because the precompressed of main spring
Power F be more than hanging balancing it is static when load G, thus main spring does not continue compression, and auxiliary spring is compressed to most in short-term
Elastic force is less than G, therefore stationary vehicle is in horizontal plane position, that is, it is above-mentioned in static equilibrium position when, auxiliary spring is by most
Big level compression.
During the traveling of vehicle, if suspension is by upward impact, then main spring can be compressed.Auxiliary spring is protected
Hold state shown in Fig. 2.
In the present embodiment, it is not common tandem working, main spring although main spring 1 and auxiliary spring 4 are coaxially arranged
1 and the auxiliary spring pallet 2 that is united two into one of auxiliary spring 4 and main spring pallet 3 isolate, so as to assume responsibility for different functions, main bullet
Spring 1 undertakes the function that equilbrium position is compressed and returned in suspension, and auxiliary spring 4 undertakes suspension and is stretched and returns to equilbrium position
Function, they undertake, and load is different, and operation interval is also different.Meanwhile, it is interval also in the presence of a Gao Gang at the two
Property it is interval, when exactly hanging the impact being subject to and being no more than setting range, the stroke of suspension is constant, and main spring can not be pressed
Contracting, auxiliary spring can not extend.
In the present embodiment, the function to this suspended structure embodies, when being just suspended from compression travel, mainly by
Main spring is completed, when being suspended on extended travel, and mainly provide completion design parameter by auxiliary spring is set as follows, and we are with car
The load hung when balancing static in the horizontal plane is G, the precompression F of main spring be more than vehicle balance it is static when hang institute
The load G born, actual design value is F≤1.1G, and maximum elastic force f when auxiliary spring is compressed to shortest route position is less than vehicle
Born load G is hung when balancing static, actual design value is f≤0.9G, and we for example take F=1.2G, f during actual design
=0.8G, it is assumed that the load of vehicle is less than 1.2G, the load of suspension can also be less than 1.2G, elastic force during whole compressions of auxiliary spring
F=0.8G, balance will be kept automatically, because car when now the vehicle body of four suspension struts is moved in static and certain limit
It is main when vehicle body changes to the pressure of suspension in the range of 0.8G~1.2G when direction within the specific limits and velocity variations
Spring can not be compressed, and auxiliary spring can not extend, and the stroke of suspension keeps constant, and car body balance is not destroyed, and vehicle will not
There is obvious cornering roll, brake is nodded and accelerates phenomenon of swinging back, and the handling of vehicle is shown as well.If single outstanding
Extension is impacted by wheel, although scope of the stress more than 0.8G~1.2G of this suspension, the stroke of this suspension can be sent out
Changing, but other three interference hung are not above with 1.2G~0.8G of setting scope, other three suspensions
Stroke will not also change, vehicle body still keep balance, although so it is single suspension because impact occur stroke change, car
Therefore body is balanced is not destroyed, and the handling and comfort property of vehicle is shown as well simultaneously, and there is presently no similar
Design and product are being used or openly.
The suspension repacking of common vehicle has been carried out according to parameter described in the present embodiment, and car is realized under most of road conditions
The autobalance of body, while improving the handling and comfortableness of vehicle, it was demonstrated that dual spring shock absorption assembly of the invention can be real
Show and effect is obvious.
Referring to Fig. 3, Fig. 4, in embodiment 2, main spring 1 in figure, auxiliary spring 4.
In the present embodiment, main spring 1 uses the progressive spring of spiral.Main spring pallet 3 uses eccentric tray, other with real
Apply example 1.
Referring to Fig. 5, Fig. 6, in embodiment 3, main spring 1 in figure, auxiliary spring 4.
In the present embodiment, main spring 1 uses air spring.The other the same as in Example 1.
Referring to Fig. 7, Fig. 8, in embodiment 4, main spring 1 in figure, auxiliary spring 4.
In the present embodiment, Double-spring shock absorber assembly as described above, the lower guide mechanism 9 is the bottom of damper 10
Stretch out a fixed sliding bar axially downwards, sliding bar lower end has screw thread to be connected with locking nut 7, sliding shoe 8 be one
The hollow sliding sleeve of linear slide on sliding bar, auxiliary spring seat and lower installation are fixedly connected with sliding sleeve.The other the same as in Example 1.
Referring to Figure 10, Figure 11, in embodiment 6, main spring 1 in figure, auxiliary spring 4.
In the present embodiment, Double-spring shock absorber assembly as described above, the lower guide mechanism 9 is under shock absorber cylinder
End is designed as sliding bar, sliding shoe 8 be one can on the outer cylinder body of damper lower end linear slide hollow sliding sleeve, under slide bar
End has screw thread to be connected with locking nut 7, and auxiliary spring seat and lower mounting blocks are fixedly connected with sliding sleeve, is not needing the outstanding of lower end fixation
Hang in meter, can also be without mounting blocks and locking nut, and the hollow of suspension lower branch arm is inserted directly into using shock absorber cylinder
In block structure, auxiliary spring is directly fixedly connected with hollow-core construction block.
It should be noted that the present invention is in implementation process, the design being often integrated using multi-part, above-mentioned master
Spring tray and auxiliary spring pallet are exactly typically to design very much using a part, and also main spring is connected on pallet top, under pallet
Also auxiliary spring is connected in portion, and part is so simplified well, space is saved.Upper mounting blocks and main spring seat is also through standing simultaneously
A global facility is counted into, lower mounting blocks and sliding shoe and auxiliary spring seat is also usually designed to a part, or even is designed to
A part for lower branch arm is hung, number of components so can be more reduced, and reduces manufacturing cost, and does not influence the performance of vehicle.
Summarize described above and embodiment, dual spring shock absorption assembly of the present invention, its principle and structure be different from
Preceding vehicle shock absorber, the spring for two different-stiffness that this damper is installed by isolation, two springs of design undertake not
Same load, mechanically realizes the autobalance of vehicle body.
On the one hand there is good geometry deformation ability using the suspension of this Double-spring shock absorber, possess absorption and come from road surface
The ability of impact, is effectively reduced or avoided the vibration of vehicle body；On the other hand vehicle is made to be changed in speed, direction and load-carrying
When, it can be good at keeping the autobalance of vehicle body, effectively solve the contradiction of vehicle driving comfort and manipulation stability,
The using effect of electronically controlled Active Suspensions on general vehicle is exceeded.
The technical principle described above for being presently preferred embodiments of the present invention and its being used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simply replacement etc. obviously changes, belong within the scope of the present invention.
Claims (10)
1. a kind of Double-spring shock absorber assembly, it is characterised in that it include main spring (1), auxiliary spring (4), main spring seat (12),
Auxiliary spring seat (5), main spring pallet (3), auxiliary spring pallet (2), damper (10), upper piston rod (11), lower guide mechanism
(9), sliding shoe (8), upper mounting blocks (13), lower mounting blocks (6) and locking nut (7), described main spring pallet (3), secondary bullet
Spring bracket disk (2) is fixedly connected with the cylinder of damper (10), upper mounting blocks (13) and main spring seat (12) and upper piston rod (11)
Locking connection, auxiliary spring seat (5) is fixedly connected with the sliding shoe (8) on lower guide mechanism (9), and main spring (1) precompressed is fixed on
Between main spring seat (12) and main spring pallet (3), auxiliary spring (4) precompressed is fixed on auxiliary spring seat (5) and auxiliary spring pallet (2)
Between.
2. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that described main spring pallet (3) and secondary bullet
Spring bracket disk (2) is using a global facility, and upper surface is designed as main spring pallet, and lower surface design is auxiliary spring pallet.
3. Double-spring shock absorber assembly as claimed in claim 2, it is characterised in that described main spring pallet (3) and secondary bullet
The global facility that spring bracket disk (2) is used, its cross-section structure is designed as a flat cup, and cup-shaped outer is main spring with edge is returned
Pallet (3), cup-like inner and bottom are auxiliary spring pallet (2).
4. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that the outer barrel of damper (10) and main spring support
Disk (3) and auxiliary spring pallet (2) are using threaded connection, main spring pallet (3), outer barrel axle of the auxiliary spring pallet (2) in damper
To regulation, and use nut check.
5. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that during selection main spring (1), it is desirable to which it is installed
The precompression F on damper during range hangs born load G, actual design value more than vehicle balance afterwards when static
F≤1.1G, selection auxiliary spring (4) when, it is desirable to its be compressed to maximum elastic force f most in short-term less than vehicle balance it is static when hang
The load G born, actual design value f≤0.9G.
6. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that during described upper piston rod (11) resilience
Relative damping factor setting value is more than 0.3, and the setting value of relative damping factor when upper piston rod (11) compresses is less than 0.1.
7. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that the lower guide mechanism (9) is upside-down mounting
Damper, with damper above share bottom, it is coaxially arranged, sliding shoe (8) be upside-down mounting damper lower end stretch out can be axial
The lower piston rod of linear motion, auxiliary spring seat and lower mounting blocks are fixedly connected with lower piston rod, and are locked with locking nut.
8. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that the lower guide mechanism (9) is damper
A fixed sliding bar is stretched out in bottom axially downwards, and sliding bar lower end has screw thread to be connected with locking nut (7), sliding shoe (8)
It is the hollow sliding sleeve of a linear slide on sliding bar, auxiliary spring seat and lower mounting blocks (6) are fixedly connected with sliding sleeve.
9. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that the lower guide mechanism (9) is damper
Cylinder lower end case is designed as sliding bar, and sliding shoe (8) is the hollow cunning of a linear slide on the outer cylinder body of damper lower end
Set, auxiliary spring seat (5) is fixedly connected with sliding sleeve.
10. Double-spring shock absorber assembly as claimed in claim 1, it is characterised in that the auxiliary spring (4) uses leaf spring
When, lower guide mechanism (9) and sliding shoe (8) are arranged apart, and lower guide mechanism is fixedly connected with main spring pallet (3), sliding shoe
(8) fixing device (15) with axletree (14) in the middle part of leaf spring is fixedly connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589104.4A CN107218327A (en) | 2017-07-19 | 2017-07-19 | Double-spring shock absorber assembly |
| PCT/CN2018/096122 WO2019015604A1 (en) | 2017-07-19 | 2018-07-18 | Dual-spring damper assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589104.4A CN107218327A (en) | 2017-07-19 | 2017-07-19 | Double-spring shock absorber assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218327A true CN107218327A (en) | 2017-09-29 |
Family
ID=59953474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589104.4A Pending CN107218327A (en) | 2017-07-19 | 2017-07-19 | Double-spring shock absorber assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107218327A (en) |
| WO (1) | WO2019015604A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671984A (en) * | 2017-11-02 | 2018-02-09 | 高峰 | A kind of concrete foaming machine with shock-absorbing function |
| WO2019015604A1 (en) * | 2017-07-19 | 2019-01-24 | 席玉林 | Dual-spring damper assembly |
| CN110657185A (en) * | 2019-09-29 | 2020-01-07 | 范浩 | Special-shaped spring with auxiliary spring layer |
| CN110871656A (en) * | 2018-08-29 | 2020-03-10 | 现代自动车株式会社 | Vehicle height adjusting device for suspension |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022084734A1 (en) * | 2020-10-24 | 2022-04-28 | Rajeev Hiremath | A system for isolating suspended loads from impact forces generated on wheel side in vehicles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA911469A (en) * | 1972-10-03 | Clifford H. Mezey | Vehicle suspension apparatus | |
| CN1603652A (en) * | 2003-10-04 | 2005-04-06 | 廖小平 | Double spring continuous vibration damper |
| CN101896369A (en) * | 2007-12-14 | 2010-11-24 | 奥迪股份公司 | Spring strut arrangement for wheel suspensions of motor vehicles |
| CN105313631A (en) * | 2014-07-15 | 2016-02-10 | 通用汽车环球科技运作有限责任公司 | Vehicle and a suspension assembly for a vehicle |
| CN207111810U (en) * | 2017-07-19 | 2018-03-16 | 席玉林 | Double-spring shock absorber assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218327A (en) * | 2017-07-19 | 2017-09-29 | 席玉林 | Double-spring shock absorber assembly |
-
2017
- 2017-07-19 CN CN201710589104.4A patent/CN107218327A/en active Pending
-
2018
- 2018-07-18 WO PCT/CN2018/096122 patent/WO2019015604A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA911469A (en) * | 1972-10-03 | Clifford H. Mezey | Vehicle suspension apparatus | |
| CN1603652A (en) * | 2003-10-04 | 2005-04-06 | 廖小平 | Double spring continuous vibration damper |
| CN101896369A (en) * | 2007-12-14 | 2010-11-24 | 奥迪股份公司 | Spring strut arrangement for wheel suspensions of motor vehicles |
| CN105313631A (en) * | 2014-07-15 | 2016-02-10 | 通用汽车环球科技运作有限责任公司 | Vehicle and a suspension assembly for a vehicle |
| CN207111810U (en) * | 2017-07-19 | 2018-03-16 | 席玉林 | Double-spring shock absorber assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019015604A1 (en) * | 2017-07-19 | 2019-01-24 | 席玉林 | Dual-spring damper assembly |
| CN107671984A (en) * | 2017-11-02 | 2018-02-09 | 高峰 | A kind of concrete foaming machine with shock-absorbing function |
| CN110871656A (en) * | 2018-08-29 | 2020-03-10 | 现代自动车株式会社 | Vehicle height adjusting device for suspension |
| CN110657185A (en) * | 2019-09-29 | 2020-01-07 | 范浩 | Special-shaped spring with auxiliary spring layer |
| CN110657185B (en) * | 2019-09-29 | 2021-09-17 | 浙江三A弹簧有限公司 | Special-shaped spring with auxiliary spring layer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019015604A1 (en) | 2019-01-24 |
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