CN202704864U - Hydro-cylinder driving container crane hoisting mechanism and container crane - Google Patents
Hydro-cylinder driving container crane hoisting mechanism and container crane Download PDFInfo
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- CN202704864U CN202704864U CN201220298331.4U CN201220298331U CN202704864U CN 202704864 U CN202704864 U CN 202704864U CN 201220298331 U CN201220298331 U CN 201220298331U CN 202704864 U CN202704864 U CN 202704864U
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- crane lifting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 66
- 239000003921 oil Substances 0.000 claims description 64
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000009849 deactivation Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000017105 transposition Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 9
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- 238000010586 diagram Methods 0.000 description 6
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- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009183 running Effects 0.000 description 5
- 230000002153 concerted effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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Abstract
The utility model provides a hydro-cylinder driving container crane hoisting mechanism and a container crane. The hoisting mechanism comprises a coiling block, a linear unit, at least one hydraulic cylinder and a crankshaft. The linear unit capable of contracting and releasing on the coiling block is connected with a hoisting tool used for hoisting a container. The hydraulic cylinder comprises a cylinder barrel, a piston and a piston rod, wherein the cylinder barrel is arranged on a fixed part in a swing mode and the piston is fixedly connected with a first end of the piston rod. The crankshaft comprises a main journal and a rod journal, wherein the main journal is arranged on the fixed part, a second end of the piston rod is arranged on the rod journal, and a crankshaft and connecting rod mechanism is formed in a whole. The crankshaft is connected with the coiling block. The hoisting mechanism of the container crane is driven by the hydraulic cylinder, and the hydraulic pressure drives the crankshaft and the rotation of the coiling block. The hydro-cylinder driving container crane hoisting mechanism and the container crane have the advantages of being strong in driving power, compact in structure, convenient to control, stable in working, and free from unbalanced load and the like, and are especially suitable for upsizing and heavy-lifting container cranes.
Description
Technical field
The utility model relates generally to engineering machinery field, specifically, relates to a kind of container crane lifting mechanism, and the container handling crane that comprises this container crane lifting mechanism.
Background technology
Port Container Cranes is a kind of of container handling technical equipment, as shown in Figure 1, it generally comprises portal frame, running trolley system, lifting mechanism, wiring system and sling upper rack etc., lifting mechanism is realized freight container or sling lifting motion, the running trolley system is responsible for the horizontal reciprocating movement of freight container or goods, the running trolley system slides in the eminence of hoisting crane, and it utilizes steel rope to connect sling upper rack by the assembly pulley of wiring system, and sling upper rack is implemented the allocation and transportation of goods.
In the prior art, container crane lifting mechanism as shown in Figure 2, it adopts motor-driven, motor links to each other with reductor by coupler, the turning cylinder of reductor is connected with reel, drives steel rope and realizes hoisting of goods.
The thriving demand of world container transportation and the continuous growth of China's container port throughput have proposed to upgrade higher requirement to the container handling technical equipment.Be accompanied by pallet loading to the development of maximization, heavy loading direction, the container handling crane load is increasing, and the propulsive effort that reductor drives reel requires larger, and high-power gear reducer often size is very large, own wt is also large, easily makes reductor fatigue impaired under for a long time overload work.
Therefore, how to provide that a kind of propulsive effort is large, simple in structure, size is little, lightweight container crane lifting mechanism, the performance requirement that maximize to satisfy, the heavy-duty container handling crane constantly promotes is the technical matters that those skilled in the art need to be resolved hurrily.
The utility model content
The utility model aims to provide a kind of container crane lifting mechanism of hydraulic oil cylinder driving, and this lifting mechanism avoided the prior art size, from great shortcoming, has increased the propulsive effort of lifting mechanism, is particularly useful for maximizing, the heavy-duty container handling crane.
Container crane lifting of the present utility model mechanism comprises:
The linear unit of reel and folding and unfolding on described reel, described linear unit connects the suspender that is used for the lifting freight container;
At least one hydraulic ram that comprises cylinder barrel, piston and piston rod, described cylinder barrel are arranged on the fixed parts swingably, and described piston is captiveed joint with the first end of described piston rod;
The bent axle that comprises crank journal and conrod journal, described crank journal are arranged on the described fixed parts, and the second end of described piston rod is arranged on the described conrod journal, the whole piston crank mechanism that forms, and described bent axle is connected with described reel.
Further, described reel comprises two, connects respectively the crank journal of described crankshaft two end.
Further, described linear unit is steel rope.
Further, described bent axle comprises a plurality of conrod journals identical with described hydraulic ram quantity, and the second end of the piston rod of each hydraulic ram is arranged on the corresponding conrod journal.
Further, described hydraulic ram is arranged in a row, and forms in-line arrangement.
Further, described hydraulic ram is divided into two groups, and each is organized hydraulic ram and is arranged in a row, and the angle between the two discharge opeing compressing cylinders is 180 °, forms the flat opposed structure.
Further, described hydraulic ram is two-way cylinder, and its rod chamber and rodless cavity replace oil inlet and oil return, when described piston rod stretches out, and described rodless cavity oil-feed, rod chamber oil return; When described piston rod is retracted, described rod chamber oil-feed, rodless cavity oil return.
Further, described hydraulic ram is single acting oil cylinder, and its rodless cavity oil inlet and oil return is only arranged, when described piston rod stretches out, and described rodless cavity oil-feed; When described piston rod is retracted, described rodless cavity oil return.
Further, described lifting mechanism also comprises the first solenoid directional control valve, pressure sensor and the first controller, wherein:
Described the first solenoid directional control valve is used for controlling the oil inlet and oil return direction of described hydraulic ram;
Described pressure sensor is arranged at rod chamber and/or the rodless cavity of described hydraulic ram, the hydraulic fluid pressure for detection of piston movement during to the relevant position;
Described the first controller connects described the first solenoid directional control valve and described pressure sensor, and according to the pressure signal of described pressure sensor, controls described the first solenoid directional control valve commutation.
Further, described the first solenoid directional control valve is three position four-way directional control valve or the two-position four way change valve that comprises the first actuator port, the second actuator port, the first oil inlet and the first return opening, described the first actuator port be connected actuator port and connect respectively rod chamber and the rodless cavity of described hydraulic ram, described the first oil inlet connecting fluid press pump, described the first return opening connects fuel tank.
Further, described the first solenoid directional control valve is two position three way directional control valve, described two position three way directional control valve comprises the 3rd actuator port, the second oil inlet and the second return opening, described the 3rd actuator port connects the rodless cavity of described hydraulic ram, described the second oil inlet connecting fluid press pump, described the second return opening connects fuel tank.
Further, described lifting mechanism also comprises mechanical switching valve, cam, the first rod member and the second rod member, wherein:
Be provided with control end on the described mechanical switching valve;
Described cam connects the crank journal of described bent axle, and rotates accordingly with described crank journal;
The first end of described the first rod member is arranged on the side face of described cam and moves back and forth under described cam wheel;
Described the second rod member arranges swingably with respect to described fixed parts, and the first end of described the second rod member connects the control end of described mechanical switching valve, and the second end of described the second rod member connects the second end of described the first rod member.
Further, described lifting mechanism also comprises the second solenoid directional control valve, angular-motion transducer and second controller, wherein:
Described the second solenoid directional control valve is used for controlling the oil inlet and oil return direction of described hydraulic ram;
Described angular-motion transducer is for detection of the angular transposition of described crankshaft revolution motion;
Described second controller connects described the second solenoid directional control valve and described angular-motion transducer, and according to the angular displacement signal of described angular-motion transducer, controls described the second solenoid directional control valve commutation.
Further, the end of the cylinder barrel of described hydraulic ram is provided with hinged seat, and described hydraulic ram is articulated on the described fixed parts by described hinged seat.
Further, the outer wall of the cylinder barrel of described hydraulic ram is symmetrically arranged with two groups of ear seats, and described hydraulic ram is articulated on the described fixed parts by described ear seat.
Further, in the described hydraulic ram working process, part hydraulic ram cylinder deactivation, only other a part of hydraulic ram does work to bent axle.
Further, described lifting mechanism also comprises flywheel and/or balance block, and wherein said flywheel is arranged on the crank journal of described bent axle, and described balance block is weight member, is used for the balance crankshaft center of gravity.
On the other hand of the present utility model, a kind of container handling crane also is provided, this container handling crane is provided with aforesaid container crane lifting mechanism.
Container crane lifting of the present utility model mechanism is by hydraulic oil cylinder driving, by hydraulic coupling band dynamic crankshaft and drive reel and rotate and reverse, and then realizes the lifting of suspender.Compared with prior art, the utility model adopts the large hydraulic ram of propulsive effort, has very large propulsive effort; And for two-way cylinder, except the dead point, piston all can externally do work under the driving of hydraulic coupling, therefore can promote the efficient of bent axle operation, improves power and the moment of torsion of container crane lifting mechanism.
In addition, the utility model need not to rely on and reductor is set increases moment of torsion, the moment of torsion of its bent axle output namely can be directly used in reel is driven, and satisfies the growth requirement of container handling crane maximization, heavy loading, has compact conformation, little, the lightweight advantage of volume.
And the utility model can also advanced by reference computer technology be realized the concerted action control of hydraulic ram, thereby improves the controller performance of device, guarantees the good operation of system.
The container crane lifting mechanism of the utility model hydraulic oil cylinder driving than prior art also have operate steadily, without unbalance loading, the advantage such as simple in structure, easy to implement.
Description of drawings
Fig. 1 is the structural representation of existing container handling crane;
Fig. 2 is a kind of structural representation of container crane lifting mechanism of prior art;
Fig. 3 is the structure principle chart of the container crane lifting mechanism of the utility model one embodiment;
Fig. 4 is the structure principle chart of the inline type hydraulic ram of the utility model one embodiment;
Fig. 5 is the hydraulic schematic diagram of the oil cylinder control of the utility model one embodiment;
Fig. 6 is the hydraulic schematic diagram of the oil cylinder control of another embodiment of the utility model;
Fig. 7 is the hydraulic schematic diagram of the oil cylinder control of the another embodiment of the utility model;
Fig. 8 is the hydraulic schematic diagram of the oil cylinder control of the another embodiment of the utility model.
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model, but, the utility model can also adopt other to be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of following public specific embodiment.
Shown in Figure 3 is the structure principle chart of the container crane lifting mechanism of the utility model one embodiment.As can be seen from the figure, the container crane lifting mechanism of the utility model hydraulic oil cylinder driving comprises reel 1a, linear unit (not shown), at least one hydraulic ram 1 and bent axle 2.Wherein, linear unit carries out folding and unfolding at reel 1a, and this linear unit connects the suspender that is used for the lifting freight container, thereby realizes the lifting of suspender.Reel 1a can rotate and reverse under the drive of bent axle 2, linear unit had different sense of motions with suspender when difference turned to, thereby can realize that freight container changes in the position of short transverse (Z axis), cooperate running trolley mechanism to change the position of (X-axis) in the horizontal direction, can be with freight container from the reference position lifting to the target location.
This linear unit is preferably steel rope, also can be the linear portion that other high strength material is made.In the embodiment shown in fig. 3, reel 1a comprises two, connects respectively the crank journal at described bent axle 2 two ends.For adapting to the job requirements of container handling crane, reel 1a can be other quantity also, and the utility model is not limited to this.
With reference to figure 4, hydraulic ram 1 comprises cylinder barrel 10, piston 11 and piston rod 12, and cylinder barrel 10 is arranged on the fixed parts swingably, and piston 11 is captiveed joint with the first end of piston rod 12.This fixed parts consists of the skeleton of the utility model container crane lifting mechanism, plays the effect of supporting and other parts being installed, and it can be the structure members such as body or housing.
Piston 11 and piston rod 12 carry out the straight line crank motion along cylinder barrel 10, and the piston 11 of this hydraulic ram 1 moves back and forth under the effect of hydraulic oil, and it both can be single acting oil cylinder, can be two-way cylinder also, and the utility model is not limited to this.
The cylinder barrel 10 of hydraulic ram 1 swings with respect to fixed parts and arranges, and as a kind of embodiment, can be provided with hinged seat in the end of cylinder barrel 10, and hydraulic ram 1 is articulated on the fixed parts by hinged seat; As another kind of embodiment, can be symmetrically arranged with at the outer wall of cylinder barrel 10 two groups of ear seats, hydraulic ram 1 is articulated on the fixed parts by the ear seat.
What deserves to be explained is, cylinder barrel 10 of the present utility model is movable the setting, and hydraulic ram 1 is two power bar structures on the whole, and it is stressed at two ends, and integral body is in state of equilibrium, can not produce side force and unbalance loading, and force-bearing situation is good.
Bent axle 2 of the present utility model comprises crank journal 21 and conrod journal 22, and crank journal 21 is arranged on the fixed parts, and the second end of piston rod 12 is arranged on the conrod journal 22, the whole piston crank mechanism that forms, and bent axle 2 is connected with reel 1a.For the ease of driving reel 1a, bent axle 2 can directly directly be connected with reel 1a, also can indirect joint (as passing through the connection of drive disk assembly or link), and the utility model is not limited to this.
Piston crank mechanism is the Poewr transmission mechanism of container crane lifting of the present utility model mechanism, and it can be converted to rotatablely moving of bent axle 2 with the straight line crank motion of piston 11, and with this movement output to reel 1a.Because hydraulic ram 1 propulsive effort is large, can export very large moment of torsion; And for two-way cylinder, except the dead point, piston 11 all can externally do work under the driving of hydraulic coupling, therefore can promote the efficient of bent axle 2 operations, improves horsepower output and output torque.
The crank journal 21 of bent axle 2 is positioned at the position at crankshaft center line place, has certain eccentric distance between conrod journal 22 and this axis.Bent axle 2 is rotated motion centered by crank journal 21 axis, and this is rotatablely moved is passed on the reel 1a, and then drives the folding and unfolding of linear unit and the lifting of suspender.Bent axle 2 generally selects high, the shock-resistant toughness of intensity and good high-quality medium carbon structure steel, high-quality medium carbon alloy steel or the high-strength ductile cast iron of wear resisting property to forge or cast.
Further, in view of the irregularity of bent axle 2 rotations, the utility model also is provided with flywheel 3 as shown in Figure 4 on the crank journal 21 of bent axle 2.Flywheel 3 can be disc-shaped structure.This flywheel 3 can store the kinergety in bent axle 2 motion processes, and it has larger rotor inertia, and when bent axle 2 rotating speeds increased, the kinetic energy of flywheel 3 increased, and energy storage can be got up; When bent axle 2 rotating speeds reduced, the kinetic energy of flywheel 3 reduced, and energy can be discharged.Flywheel 3 can reduce the speed fluctuations in the operation process, is convenient to be with dynamic crankshaft 2 smooth operations.
The utility model can also be provided with balance block on bent axle 2, balance block is weight member, is used for balance crankshaft 2 centers of gravity.This balance block can guarantee the balance of bent axle 2, reduces the vibration of bent axle 2 operations.This balance block is arranged at the opposite side that bent axle 2 is laid particular stress on part.Should be understood that, can also bore at bent axle 2 and go a part of weight, to reach the purpose of balance.
Should be understood that, can be provided with one or more hydraulic rams 1 on the bent axle 2 of the present utility model.Preferably, in Fig. 3 and structure principle chart shown in Figure 4, hydraulic ram 1 comprises 4, and bent axle respectively comprises 4 conrod journals 22 identical with hydraulic ram quantity, and the second end of the piston rod 1 of each hydraulic ram 1 is arranged on the corresponding conrod journal 22.Should be understood that, conrod journal 22 and hydraulic ram 1 can be other quantity also, and the utility model is not limited to this.
When each bent axle was provided with a plurality of hydraulic ram 1, each hydraulic ram 1 can have the various arrangement arrangement on bent axle 2.In the embodiment shown in fig. 3, the hydraulic ram 1 on each bent axle 2 is divided into two groups, and each is organized hydraulic ram 1 and is arranged in a row, and the angle between the two discharge opeing compressing cylinders 1 is 180 °, forms the flat opposed structure.Since flat opposed between adjacent two hydraulic rams 1, the vibration of can cancelling out each other, thus so that bent axle 2 runnings are more steady.
Fig. 4 is the structure principle chart of the inline type hydraulic ram of the utility model one embodiment, and the hydraulic ram 1 on each bent axle is arranged in a row in the figure, forms in-line arrangement.Each hydraulic ram 1 can vertically be arranged in a row as shown in Figure 4, and in order to reduce height, also can be arranged to tilt even structure level has the advantages such as volume compact, layout be flexible.In addition, hydraulic ram of the present utility model also can be arranged as " V " font or be similar to the structure of " W " font, and the utility model is not limited to this.
On the basis of technique scheme, because the hydraulic ram propulsive effort is large, the utility model need not to rely on and reductor is set increases moment of torsion, the moment of torsion of its bent axle 2 outputs namely can be directly used in reel 1a is driven, satisfy the maximization of container handling crane, the growth requirement of heavy loading, have compact conformation, little, the lightweight advantage of volume.
As an embodiment of the present utility model, in hydraulic ram 1 working process, part hydraulic ram 1 cylinder deactivation, only 1 pair of bent axle of other a part of hydraulic ram, 2 actings.On the basis of technique scheme, can be according to operation and the load state of container crane lifting mechanism, only control part hydraulic ram 1 externally does work, and the not externally acting (its piston rod moves under the drive of bent axle) of the part hydraulic ram 1 of cylinder deactivation, thereby can adjust the power of the utility model lifting mechanism, improve capacity usage ratio.
Need to prove, when the utility model is a plurality of at hydraulic ram 1, mutually need work compound between the hydraulic ram 1, can guarantee the conformability of bent axle 2 motions.The turnover oil action of each hydraulic ram 1 can be controlled by electronic control technology, also can adopt physical construction control, and the utility model is not limited to this.
In the embodiment shown in fig. 5, hydraulic ram 1 is two-way cylinder, and its rod chamber and rodless cavity replace oil inlet and oil return, and when piston rod 12 stretches out, rodless cavity oil-feed, rod chamber oil return; When piston rod 12 is retracted, rod chamber oil-feed, rodless cavity oil return.In addition, Figure 5 shows that the in-line arrangement that a plurality of hydraulic rams 1 are arranged in a row.The action of hydraulic ram 1 can be controlled by the system that comprises the first solenoid directional control valve 41, pressure sensor 5 and the first controller 61.
The first solenoid directional control valve 41 is used for the oil inlet and oil return direction of control hydraulic ram 1, and it both can control a hydraulic ram, also can control simultaneously a plurality of hydraulic rams (wherein two hydraulic rams identical such as potential difference).Preferred the first solenoid directional control valve 41 is identical with the quantity of hydraulic ram 1.In two-way cylinder shown in Figure 4, this first solenoid directional control valve 41 is three position four-way directional control valve, and comprises the first actuator port, the second actuator port, the first oil inlet and the first return opening.Wherein, the first actuator port and the second actuator port be rod chamber and the rodless cavity of connecting fluid compressing cylinder 1 respectively, and the first oil inlet connecting fluid press pump 40, the first return openings connect fuel tank.At the first state, the first actuator port oil-feed, the second actuator port oil return; At the second state, the first actuator port oil return, the second actuator port oil-feed; In the third state, the first actuator port and the second actuator port are off condition.Should be understood that, be two-position four way change valve when (comprising same hydraulic fluid port) at this first solenoid directional control valve 41, can realize technique effect of the present utility model equally.
The first controller 61 connects the first solenoid directional control valve 41 and pressure sensors 5, and according to the pressure signal of pressure sensor 5, controls 41 commutations of the first solenoid directional control valve.After the commutation of the first solenoid directional control valve 41, piston 11 is in cylinder barrel 10 interior break-in campaigns, thereby reaches the purpose of reciprocating.
In the embodiment shown in fig. 6, hydraulic ram 1 is single acting oil cylinder, and its rodless cavity oil inlet and oil return is only arranged, when piston rod 12 stretches out, and the rodless cavity oil-feed; When piston rod 12 is retracted, the rodless cavity oil return.In addition, Figure 6 shows that the in-line arrangement that a plurality of hydraulic rams 1 are arranged in a row.Hydraulic ram 1 can be controlled by the system that comprises the first solenoid directional control valve 41, pressure sensor 5 and the first controller 61.
In single acting oil cylinder shown in Figure 6, this first solenoid directional control valve 41 is two position three way directional control valve, comprises the 3rd actuator port, the second oil inlet and the second return opening.The rodless cavity of the 3rd actuator port connecting fluid compressing cylinder 1, the second oil inlet connecting fluid press pump 40, the second return openings connect fuel tank.At the first state, hydraulic oil enters the rodless cavity of hydraulic ram 1 through the second oil inlet and the 3rd actuator port; At the second state, hydraulic oil returns into fuel tank through the 3rd actuator port and the second return opening.
The pressure sensor 5 of Fig. 6 only is arranged at the rodless cavity of hydraulic ram 1, and its structure is similar to Fig. 5 with effect, and the structure of the first controller 61 is also similar to Fig. 5 with effect in addition, and this paper does not repeat them here.
Fig. 7 is the hydraulic schematic diagram of the oil cylinder control of the another embodiment of the utility model, and it controls the action of hydraulic ram 1 by the system that comprises the second solenoid directional control valve 42, angular-motion transducer 8 and second controller 62.Wherein, the second solenoid directional control valve 42 is used for the oil inlet and oil return direction of control hydraulic ram 1, and it both can control a hydraulic ram, also can control simultaneously a plurality of hydraulic rams (wherein two hydraulic rams identical such as potential difference).Preferred the second solenoid directional control valve 42 is identical with the quantity of hydraulic ram 1.The angular transposition that angular-motion transducer 8 rotatablely moves for detection of bent axle 2; Second controller 62 connects the second solenoid directional control valve 42 and angular-motion transducers 8, and according to the angular displacement signal of angular-motion transducer 8, controls 42 commutations of the second solenoid directional control valve.
Because hydraulic ram 1 after installation on the conrod journal 22 of bent axle 2, has fixing angular relationship between each hydraulic ram 1, thereby can accurately control the location of hydraulic ram 1 top dead point and bottom dead point according to measurement of angle.This angular-motion transducer 8 can be the coder that is arranged on the crank journal 21 of bent axle 2.
Fig. 8 is the hydraulic schematic diagram of the oil cylinder of the another embodiment of the utility model, different from the computer technology that adopts among the earlier figures 5-7, what Fig. 8 adopted is a kind of structure of machinery control, and hydraulic ram 1 can be controlled by the system that comprises mechanical switching valve 43, cam 20, the first rod member 71 and the second rod member 72.Mechanical switching valve 43 both can have been controlled a hydraulic ram, also can control simultaneously a plurality of hydraulic rams (wherein two hydraulic rams identical such as potential difference).Preferred mechanical formula change-over valve 43 is identical with the quantity of hydraulic ram 1.
Wherein, be provided with control end 43a on the mechanical switching valve 43.This control end 43a can be the valve rod that is connected with spool, and this valve rod can be positioned at the end of mechanical switching valve 43.When this control end 43a was positioned at diverse location with respect to valve body, mechanical switching valve 43 had different commutation states.
The first end of the first rod member 71 is arranged on the side face of cam 20 and under cam 20 effects and moves back and forth, and the first rod member 71 can be sleeved in the sleeve, moves radially to limit it.
The second rod member 72 arranges swingably with respect to fixed parts, and the first end of the second rod member 72 connects the control end 43a of mechanical type change-over valve 43, and the second end of the second rod member 72 connects the second end of the first rod member 71.Hinge-point between the second rod member 72 and the fixed parts is between its first end and the second end.The second rod member 72 can for " V " character form structure shown in Figure 7, also can be arcuate structure or other possible structure.
In orientation shown in Figure 8, if bent axle 2 clockwise rotates, when piston rod 12 was descending, the first rod member 71 moved down, correspondingly drive the second rod member 72 counter-clockwise swing centered by hinge-point, and spur the control end 43a of mechanical switching valve 43 left; When piston rod 12 comes downwards to bottom dead point, the second rod member 72 pulling change-over valves are realized commutation, this moment, hydraulic oil oil inlet and oil return direction changed, under the effect of hydraulic oil, piston rod 12 is up, and the first rod member 71 moves up, correspondingly the second rod member 72 cws swing, and promote the control end 43a of change-over valve to the right, until piston rod 12 goes upward to after top dead centre, again realize commutation.So repeatedly, thus straight line crank motion and bent axle 2 continuous the rotatablely moving of realization piston rod 12, and then drive the continuous rotation of reel 1a and the lifting of suspender.
Except aforementioned container crane lifting mechanism, the utility model also provides a kind of container handling crane that comprises aforementioned container crane lifting mechanism.Other structure of this container handling crane is with reference to prior art, and this paper does not repeat them here.
In sum, container crane lifting of the present utility model mechanism is by hydraulic oil cylinder driving, and integral body has formed piston crank mechanism, by hydraulic coupling band dynamic crankshaft and drive reel 1a and rotate and reverse, and then realizes the lifting of suspender.Compared with prior art, the utility model mainly has the following advantages:
1) driving power is large
The utility model container crane lifting mechanism adopts hydraulic ram 1 to drive, and propulsive effort is large, has very large power and moment of torsion; And, for two-way cylinder, its rod chamber and rodless cavity can replace oil inlet and oil return, in piston 11 each stroke from the top dead point to the bottom dead point and from the bottom dead point to the top dead point, except the dead point, piston 11 all can externally do work under the driving of hydraulic coupling, therefore can promote the efficient of bent axle 2 operations, improves power and the moment of torsion of container crane lifting mechanism.
2) compact conformation
The utility model need not to rely on and reductor is set increases moment of torsion, the moment of torsion of its bent axle output namely can be directly used in reel 1a is driven, satisfy the growth requirement of container handling crane maximization, heavy loading, have compact conformation, little, the lightweight advantage of volume.
3) control is convenient
The utility model can advanced by reference computer technology be realized the concerted action of the utility model hydraulic ram is controlled, and can improve the controller performance of lifting mechanism, guarantees the good operation of mechanism.
In addition, the container crane lifting mechanism of the utility model hydraulic oil cylinder driving than prior art also have operate steadily, without unbalance loading, the advantage such as simple in structure, easy to implement.Therefore, the beneficial effects of the utility model are apparent.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (18)
1. the container crane lifting mechanism of a hydraulic oil cylinder driving is characterized in that, comprising:
The linear unit of reel (1a) and folding and unfolding on described reel (1a), described linear unit connects the suspender that is used for the lifting freight container;
Comprise at least one hydraulic ram (1) of cylinder barrel (10), piston (11) and piston rod (12), described cylinder barrel (10) is arranged on the fixed parts swingably, and described piston (11) is captiveed joint with the first end of described piston rod (12);
The bent axle (2) that comprises crank journal (21) and conrod journal (22), described crank journal (21) is arranged on the described fixed parts, the second end of described piston rod (12) is arranged on the described conrod journal (22), the whole piston crank mechanism that forms, described bent axle (2) is connected with described reel (1a).
2. container crane lifting according to claim 1 mechanism is characterized in that, described reel (1a) comprises two, connects respectively the crank journal (21) at described bent axle (2) two ends.
3. container crane lifting according to claim 1 mechanism is characterized in that, described linear unit is steel rope.
4. container crane lifting according to claim 1 mechanism, it is characterized in that, described bent axle (2) comprises a plurality of conrod journals (22) identical with described hydraulic ram (1) quantity, and the second end of the piston rod (12) of each hydraulic ram (1) is arranged on the corresponding conrod journal (22).
5. container crane lifting according to claim 4 mechanism is characterized in that, described hydraulic ram (1) is arranged in a row, and forms in-line arrangement.
6. container crane lifting according to claim 4 mechanism is characterized in that, described hydraulic ram (1) is divided into two groups, and each is organized hydraulic ram (1) and is arranged in a row, and the angle between the two discharge opeing compressing cylinders (1) is 180 °, forms the flat opposed structure.
7. container crane lifting according to claim 1 mechanism, it is characterized in that, described hydraulic ram (1) is two-way cylinder, and its rod chamber and rodless cavity replace oil inlet and oil return, described piston rod (12) is when stretching out, described rodless cavity oil-feed, rod chamber oil return; When described piston rod (12) is retracted, described rod chamber oil-feed, rodless cavity oil return.
8. container crane lifting according to claim 1 mechanism is characterized in that, described hydraulic ram (1) is single acting oil cylinder, and its rodless cavity oil inlet and oil return is only arranged, and described piston rod (12) is when stretching out, described rodless cavity oil-feed; When described piston rod (12) is retracted, described rodless cavity oil return.
9. container crane lifting according to claim 1 mechanism is characterized in that, also comprises the first solenoid directional control valve (41), pressure sensor (5) and the first controller (61), wherein:
Described the first solenoid directional control valve (41) is used for controlling the oil inlet and oil return direction of described hydraulic ram (1);
Described pressure sensor (5) is arranged at rod chamber and/or the rodless cavity of described hydraulic ram (1), for detection of the hydraulic fluid pressure of piston (11) when moving to the relevant position;
Described the first controller (61) connects described the first solenoid directional control valve (41) and described pressure sensor (5), and according to the pressure signal of described pressure sensor (5), controls described the first solenoid directional control valve (41) and commutate.
10. container crane lifting according to claim 9 mechanism, it is characterized in that, described the first solenoid directional control valve (41) is three-position four-way valve commutation or the two-position four way change valve that comprises the first actuator port, the second actuator port, the first oil inlet and the first return opening, described the first actuator port be connected actuator port and connect respectively rod chamber and the rodless cavity of described hydraulic ram (1), described the first oil inlet connecting fluid press pump (40), described the first return opening connects fuel tank.
11. container crane lifting according to claim 9 mechanism, it is characterized in that, described the first solenoid directional control valve (41) is two position three way directional control valve, described two position three way directional control valve comprises the 3rd actuator port, the second oil inlet and the second return opening, described the 3rd actuator port connects the rodless cavity of described hydraulic ram (1), described the second oil inlet connecting fluid press pump (40), described the second return opening connects fuel tank.
12. container crane lifting according to claim 1 mechanism is characterized in that, also comprises mechanical switching valve (43), cam (20), the first rod member (71) and the second rod member (72), wherein:
Be provided with control end (43a) on the described mechanical switching valve (43);
Described cam (20) connects the crank journal (21) of described bent axle (2), and rotates accordingly with described crank journal (21);
The first end of described the first rod member (71) is arranged on the side face of described cam (20) and under described cam (20) effect and moves back and forth;
Described the second rod member (72) arranges swingably with respect to described fixed parts, the first end of described the second rod member (72) connects the control end (43a) of described mechanical switching valve (43), and the second end of described the second rod member (72) connects the second end of described the first rod member (71).
13. container crane lifting according to claim 1 mechanism is characterized in that, also comprises the second solenoid directional control valve (42), angular-motion transducer (8) and second controller (62), wherein:
Described the second solenoid directional control valve (42) is used for controlling the oil inlet and oil return direction of described hydraulic ram (1);
The angular transposition that described angular-motion transducer (8) rotatablely moves for detection of described bent axle (2);
Described second controller (62) connects described the second solenoid directional control valve (42) and described angular-motion transducer (8), and according to the angular displacement signal of described angular-motion transducer (8), controls described the second solenoid directional control valve (42) and commutate.
14. each described container crane lifting mechanism according to claim 1-13, it is characterized in that, the end of the cylinder barrel (10) of described hydraulic ram (1) is provided with hinged seat, and described hydraulic ram (1) is articulated on the described fixed parts by described hinged seat.
15. each described container crane lifting mechanism according to claim 1-13, it is characterized in that, the outer wall of the cylinder barrel (10) of described hydraulic ram (1) is symmetrically arranged with two groups of ear seats, and described hydraulic ram (1) is articulated on the described fixed parts by described ear seat.
16. each described container crane lifting mechanism is characterized in that according to claim 1-13, in described hydraulic ram (1) working process, and part hydraulic ram (1) cylinder deactivation, only other a part of hydraulic ram (1) does work to bent axle (2).
17. each described container crane lifting mechanism according to claim 1-13, it is characterized in that, also comprise flywheel (3) and/or balance block, wherein said flywheel (3) is arranged on the crank journal (21) of described bent axle (2), described balance block is weight member, is used for balance crankshaft (2) center of gravity.
18. a container handling crane is characterized in that, is provided with each described container crane lifting mechanism of claim 1-17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220298331.4U CN202704864U (en) | 2012-06-25 | 2012-06-25 | Hydro-cylinder driving container crane hoisting mechanism and container crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220298331.4U CN202704864U (en) | 2012-06-25 | 2012-06-25 | Hydro-cylinder driving container crane hoisting mechanism and container crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202704864U true CN202704864U (en) | 2013-01-30 |
Family
ID=47585188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220298331.4U Withdrawn - After Issue CN202704864U (en) | 2012-06-25 | 2012-06-25 | Hydro-cylinder driving container crane hoisting mechanism and container crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202704864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745595A (en) * | 2012-06-25 | 2012-10-24 | 三一重工股份有限公司 | Oil cylinder-driven container crane hoisting mechanism and container crane |
| CN104044998A (en) * | 2014-06-06 | 2014-09-17 | 淮南联合大学 | Monorail crane travelling mechanism hydraulic system for double-braking mine |
| CN114538289A (en) * | 2022-03-31 | 2022-05-27 | 赛轮集团股份有限公司 | Powder material lifting and feeding device and method |
-
2012
- 2012-06-25 CN CN201220298331.4U patent/CN202704864U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745595A (en) * | 2012-06-25 | 2012-10-24 | 三一重工股份有限公司 | Oil cylinder-driven container crane hoisting mechanism and container crane |
| CN102745595B (en) * | 2012-06-25 | 2014-07-09 | 三一重工股份有限公司 | Oil cylinder-driven container crane hoisting mechanism and container crane |
| CN104044998A (en) * | 2014-06-06 | 2014-09-17 | 淮南联合大学 | Monorail crane travelling mechanism hydraulic system for double-braking mine |
| CN114538289A (en) * | 2022-03-31 | 2022-05-27 | 赛轮集团股份有限公司 | Powder material lifting and feeding device and method |
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