CN102730559A - Rubber-tyred container crane and its oil cylinder driven running gear - Google Patents
Rubber-tyred container crane and its oil cylinder driven running gear Download PDFInfo
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- CN102730559A CN102730559A CN201210210111.6A CN201210210111A CN102730559A CN 102730559 A CN102730559 A CN 102730559A CN 201210210111 A CN201210210111 A CN 201210210111A CN 102730559 A CN102730559 A CN 102730559A
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- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 66
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 8
- 239000002828 fuel tank Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 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 11
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention brings forward a rubber-tyred container crane and its oil cylinder driven running gear. The running gear comprises: road wheels arranged at the bottom of a portal frame; a hydraulic cylinder which comprises a cylinder, a piston and a piston rod, wherein the cylinder is swingably arranged and the piston is fixedly connected with a first end of the piston rod; and a crankshaft which comprises a main journal and a rod journal, wherein the main journal forms a drive connection with the road wheels, a second end of the piston rod is arranged on the rod journal, and the integral body forms a crank link mechanism. The running gear of the rubber-tyred container crane provided by the invention is driven by the oil cylinder, and the crankshaft is driven by hydraulic pressure to rotate the road wheels. The running gear has advantages of high stability, compact structure, large driving power, beautiful appearance, stable operation and simple structure, is convenient to control, and is easy to implement.
Description
Technical field
The present invention relates generally to engineering machinery field, specifically, relates to a kind of container in tire type crane travelling gear of hydraulic oil cylinder driving, and the container in tire type hoisting crane that comprises this traveling gear.
Background technology
Traveling gear is the important component part of container in tire type hoisting crane (RTG).Its traveling gear mainly comprises the driver train of road wheel and this road wheel, and road wheel is positioned at the bottom of portal frame, and under the effect of driver train, thereby road wheel rotates the needs that satisfy walking and transition.Because portal frame has bigger weight, so driver train need have enough driving powers and moment of torsion, could satisfy the supporting demand of container in tire type hoisting crane.
Existing container in tire type crane travelling gear generally adopts the chain-type driver train; Promptly, drive drop-gear box, then through the chain drive road wheel by plunging joint by the driven by motor plunging joint; This driving mechanism structure is loaded down with trivial details, take up room big; And the used chain life-span is short, causes the life-span of whole drive system low, has had a strong impact on the work efficiency of container in tire type hoisting crane.
Along with the continuous growth of the thriving demand and the China's container port throughput of world's freight container traffic, transition is on the increase with frequency of utilization, and the container handling technical equipment has been proposed the higher requirement of renewal.Therefore, how a kind of reliable in structure being provided, the container in tire type crane travelling gear little, long service life that takes up room, to satisfy the performance requirement that the container in tire type hoisting crane constantly promotes, is the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
The present invention aims to provide a kind of container in tire type crane travelling gear of hydraulic oil cylinder driving, and this traveling gear has improved service life and reduced and takes up room.
The container in tire type crane travelling gear of hydraulic oil cylinder driving of the present invention comprises:
Be arranged at the road wheel of portal frame bottom;
The hydraulic ram that comprises cylinder barrel, piston and piston rod, said cylinder barrel is provided with swingably, and said piston is captiveed joint with first end of said piston rod;
The bent axle that comprises crank journal and conrod journal, said crank journal is connected with said traction drive, and second end of said piston rod is arranged on the said conrod journal, the whole piston crank mechanism that forms.
Further, said hydraulic ram and said bent axle are arranged at the both sides of said road wheel in pairs.
Further, also comprise flywheel and/or balance block, wherein said flywheel is arranged on the crank journal of said bent axle, and said balance block is a weight member, is used for the balance crankshaft center of gravity.
Further, said hydraulic ram is a two-way cylinder, and its rod chamber and rodless cavity replace oil inlet and oil return, when said piston rod stretches out, and said rodless cavity oil-feed, rod chamber oil return; When said piston rod is withdrawn, said rod chamber oil-feed, rodless cavity oil return.
Further, said hydraulic ram is a single acting oil cylinder, and its rodless cavity oil inlet and oil return is only arranged, when said piston rod stretches out, and said rodless cavity oil-feed; When said piston rod is withdrawn, said rodless cavity oil return.
Further, also comprise first solenoid directional control valve, pressure sensor and first controller, wherein:
Said first solenoid directional control valve is used to control the oil inlet and oil return direction of said hydraulic ram;
Said pressure sensor is arranged at the rod chamber and/or the rodless cavity of said hydraulic ram, the hydraulic fluid pressure when being used to detect piston motion to relevant position;
Said first controller connects said first solenoid directional control valve and said pressure sensor, and according to the pressure signal of said pressure sensor, controls said first solenoid directional control valve switching-over.
Further; Said first solenoid directional control valve is three position four-way directional control valve or the two-position four way change valve that comprises first actuator port, second actuator port, first oil inlet and first return opening; Said first actuator port and second actuator port are connected the rod chamber and the rodless cavity of said hydraulic ram respectively; Said first oil inlet connects Hydraulic Pump, and said first return opening connects fuel tank.
Further; Said first solenoid directional control valve is a two position three way directional control valve; Said two position three way directional control valve comprises the 3rd actuator port, second oil inlet and second return opening; Said the 3rd actuator port connects the rodless cavity of said hydraulic ram, and said second oil inlet connects Hydraulic Pump, and said second return opening connects fuel tank.
Further, also comprise mechanical switching valve, cam, first rod member and second rod member, wherein:
Said mechanical switching valve is provided with control end;
Said cam connects the crank journal of said bent axle, and rotates accordingly with said crank journal;
First end of said first rod member is arranged on the side face of said cam and under said camming action, moves back and forth;
Said second rod member is provided with swingably, and first end of said second rod member connects the control end of said mechanical switching valve, and second end of said second rod member connects second end of said first rod member.
Further, also comprise second solenoid directional control valve, angular-motion transducer and second controller, wherein:
Said second solenoid directional control valve is used to control the oil inlet and oil return direction of said hydraulic ram;
Said angular-motion transducer is used to detect the angular transposition of said crankshaft revolution motion;
Said second controller connects said second solenoid directional control valve and said angular-motion transducer, and according to the angular displacement signal of said angular-motion transducer, controls said second solenoid directional control valve switching-over.
Further, the end of the cylinder barrel of said hydraulic ram is provided with hinged seat, and said hydraulic ram is articulated on the fixed parts through said hinged seat.
Further, the outer wall of the cylinder barrel of said hydraulic ram is symmetrically arranged with two groups of ear seats, and said hydraulic ram is articulated on the fixed parts through said ear seat.
Another aspect of the present invention also provides a kind of container in tire type hoisting crane, and this tire container handling crane is provided with aforesaid container in tire type crane travelling gear.
Container in tire type crane travelling gear of the present invention drives bent axle and ground-engaging wheel rotation by hydraulic oil cylinder driving through hydraulic coupling, and then realizes the walking of container in tire type hoisting crane.Compared with prior art, the present invention has changed the integral layout of existing traveling gear, has cancelled the use of motor, reductor and chain drive-belt, the situation of chain fracture can not occur, has the advantage of stable and reliable structure, long service life.
The present invention also need not to rely on and reductor is set increases moment of torsion, and the moment of torsion of its bent axle output promptly can directly be used for road wheel is driven, and satisfies the supporting demand of container in tire type hoisting crane, has compact conformation, little, the lightweight advantage of volume.
And the present invention adopts hydraulic ram to drive, and propulsive effort is big; And for two-way cylinder, in piston each stroke from the top dead point to the bottom dead point and from the bottom dead point to the top dead point, except that the dead point, piston all can externally do work under the driving of hydraulic coupling, has very big power and moment of torsion.
In addition, the present invention also have control convenient, aesthetic in appearance, operate steadily, do not have unbalance loading, advantage such as simple in structure, easy to implement.
Description of drawings
Fig. 1 is the structure principle chart of the container in tire type crane travelling gear of one embodiment of the invention;
Fig. 2 is the structure principle chart of the inline type hydraulic ram of one embodiment of the invention;
Fig. 3 is the hydraulic schematic diagram of the oil cylinder control of one embodiment of the invention;
Fig. 4 is the hydraulic schematic diagram of the oil cylinder control of another embodiment of the present invention;
Fig. 5 is the hydraulic schematic diagram of the oil cylinder control of further embodiment of this invention;
Fig. 6 is the hydraulic schematic diagram of the oil cylinder control of further embodiment of this invention.
The specific embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the accompanying drawing and the specific embodiment.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Shown in Figure 1 is the structure principle chart of the container in tire type crane travelling gear of one embodiment of the invention.As can be seen from the figure, the container in tire type crane travelling gear of hydraulic oil cylinder driving of the present invention comprises road wheel 1a, hydraulic ram 1 and bent axle 2.Wherein, road wheel 1a is arranged at the portal frame bottom, and this road wheel 1a rotates under the drive of bent axle 2, and then realizes the walking of complete machine on the road surface.
With reference to figure 2, hydraulic ram 1 comprises cylinder barrel 10, piston 11 and piston rod 12, and cylinder barrel 10 is provided with swingably, and piston 11 is captiveed joint with first end of piston rod 12.Cylinder barrel 10 can be arranged on the fixed partss such as portal frame.As a kind of embodiment, can be provided with hinged seat in the end of cylinder barrel 10, hydraulic ram 1 is articulated on the fixed parts through hinged seat; As another kind of embodiment, can be symmetrically arranged with two groups of ear seats at the outer wall of cylinder barrel 10, hydraulic ram 1 is articulated on the fixed parts through the ear seat.
What be worth explanation is, cylinder barrel 10 of the present invention be movable setting, and hydraulic ram 1 is two power bar structures on the whole, and its at both ends is stressed, 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 invention comprises crank journal 21 and conrod journal 22, and crank journal 21 drives with road wheel 1a and is connected, and second end of piston rod 12 is arranged on the conrod journal 22, the whole piston crank mechanism that forms.Road wheel 1a can be connected with crank journal 21 through coupler, also can connect through other drive disk assembly or link, and the present invention is not limited to this.The present invention can the container in tire type hoisting crane all road wheel 1a be provided with the driver train that comprises hydraulic ram 1 and bent axle 2, also can only on part road wheel 1a, be provided with.
Piston crank mechanism is the Poewr transmission mechanism of container in tire type crane travelling gear of the present invention, and it can convert the straight line crank motion of piston 11 into bent axle 2 rotatablely move, and exports this motion to road wheel 1a.Because hydraulic ram 1 propulsive effort is big, can export very big moment of torsion; And for two-way cylinder, except that 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 that the center is rotated motion with crank journal 21 axis, and this is rotatablely moved is passed on the road wheel 1a, and then realizes the walking of gauntry crane.Bent axle 2 generally selects for use intensity height, shock-resistant toughness 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.
Preferably, as shown in Figure 1, hydraulic ram 1 and bent axle 2 are arranged at the both sides of road wheel 1a in pairs, to reduce the unbalance loading of the road wheel 1a left and right sides.
Further, in view of the irregularity of bent axle 2 rotations, the present invention also is provided with flywheel 3 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 bigger rotor inertia, and when bent axle 2 rotating speeds increased, the kinetic energy of flywheel 3 increased, and can store energy be got up; When bent axle 2 rotating speeds reduced, the kinetic energy of flywheel 3 reduced, and can energy be discharged.Flywheel 3 can reduce the speed fluctuations in the operation process, is convenient to drive bent axle 2 smooth operations.
The present invention can also be provided with balance block on bent axle 2, balance block is a 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 on bent axle 2, bore and go a part of weight, to reach the purpose of balance.
In the embodiment shown in fig. 1, each bent axle 2 is provided with 1 hydraulic ram 1; In the embodiment shown in Figure 2, each bent axle 2 is provided with 2 hydraulic rams 1.Should be understood that hydraulic ram 1 can also be other quantity.
When being a plurality of, each hydraulic ram 1 can have multiple arranged mode on bent axle 2 at hydraulic ram 1, and like flat opposed structure, in-line arrangement (shown in Figure 2), " V " font or be similar to structure of " W " font or the like, the present invention is not limited to this.
On the basis of technique scheme, the present invention has changed the integral layout of existing traveling gear, has cancelled the use of motor, reductor and chain drive-belt, the situation of chain fracture can not occur, has the advantage of stable and reliable structure, long service life; The present invention also need not to rely on and reductor is set increases moment of torsion, and the moment of torsion of its bent axle 2 outputs promptly can directly be used for road wheel 1a is driven, and satisfies the supporting demand of container in tire type hoisting crane, has compact conformation, little, the lightweight advantage of volume.
Need to prove that the present invention need guarantee the conformability of hydraulic ram 1 and bent axle 2 actions, when being a plurality of, also need guarantee hydraulic ram concertedness each other at hydraulic ram 1.The turnover oil action of hydraulic ram 1 can also can be adopted physical construction control through electronic control technology control, and the present invention is not limited to this.
In the embodiment shown in fig. 3, hydraulic ram 1 is a 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 withdrawals, rod chamber oil-feed, rodless cavity oil return.The action of hydraulic ram 1 can be controlled through the system that comprises first solenoid directional control valve 41, pressure sensor 5 and first controller 61.
First solenoid directional control valve 41 is used for the oil inlet and oil return direction of modulated pressure oil cylinder 1; In two-way cylinder shown in Figure 4; This first solenoid directional control valve 41 is a three position four-way directional control valve, and comprises first actuator port, second actuator port, first oil inlet and first return opening.Wherein, first actuator port and second actuator port are connected the rod chamber and the rodless cavity of hydraulic ram 1 respectively, and first oil inlet connects Hydraulic Pump 40, the first return openings and connects fuel tank.At first state, the first actuator port oil-feed, the second actuator port oil return; At second state, the first actuator port oil return, the second actuator port oil-feed; In the third state, first actuator port and second actuator port are off condition.Should be understood that, be two-position four way change valve when (comprising same hydraulic fluid port), can realize technique effect of the present invention equally at this first solenoid directional control valve 41.
In the embodiment shown in fig. 4, hydraulic ram 1 is a 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; During piston rod 12 withdrawals, the rodless cavity oil return.Hydraulic ram 1 can be controlled through the system that comprises first solenoid directional control valve 41, pressure sensor 5 and first controller 61.
In single acting oil cylinder shown in Figure 4, this first solenoid directional control valve 41 is a two position three way directional control valve, comprises the 3rd actuator port, second oil inlet and second return opening.The 3rd actuator port connects the rodless cavity of hydraulic ram 1, and second oil inlet connects Hydraulic Pump 40, the second return openings and connects fuel tank.At its first state, hydraulic oil gets into the rodless cavity of hydraulic ram 1 through second oil inlet and the 3rd actuator port; At its second state, hydraulic oil returns into fuel tank through the 3rd actuator port and second return opening.
The pressure sensor 5 of Fig. 4 only is arranged at the rodless cavity of hydraulic ram 1, and its structure is similar with Fig. 3 with effect, and the structure of first controller 61 is also similar with Fig. 3 with effect in addition, and this paper repeats no more at this.
Fig. 5 is the hydraulic schematic diagram of the oil cylinder control of further embodiment of this invention, the action that it comes modulated pressure oil cylinder 1 through the system that comprises second solenoid directional control valve 42, angular-motion transducer 8 and second controller 62.Wherein, second solenoid directional control valve 42 is used for the oil inlet and oil return direction of modulated pressure oil cylinder 1; Angular-motion transducer 8 is used to detect the angular transposition that bent axle 2 rotatablely moves; Second controller 62 connects second solenoid directional control valve 42 and angular-motion transducer 8, and according to the angular displacement signal of angular-motion transducer 8, controls 42 switching-overs of second solenoid directional control valve.
Because hydraulic ram 1 is after installation on the conrod journal 22 of bent axle 2; Bent axle 2 rotatablely move and the reciprocating of hydraulic ram 1 between have fixing relation, thereby according to the measurement of angle location of modulated pressure oil cylinder 1 top dead point and bottom dead point accurately.This angular-motion transducer 8 can be the coder that is arranged on the crank journal 21 of bent axle 2.
Fig. 6 is the hydraulic schematic diagram of the oil cylinder of further embodiment of this invention; Different with the computer technology that adopts among the earlier figures 3-5; What Fig. 6 adopted is a kind of structure of mechanical control, and hydraulic ram 1 can be controlled through the system that comprises mechanical switching valve 43, cam 20, first rod member 71 and second rod member 72.
Wherein, mechanical switching valve 43 is provided with control end 43a.This control end 43a can be and spool bonded assembly valve rod that 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.
Cam 20 connects the crank journal 21 of bent axle 2, and rotates accordingly with crank journal 21.This cam 20 can be fixed on the crank journal 21 and rotation synchronous with it, also can connect crank journal 21 through drive disk assembly 1c, and the rotating speed of cam 20 can be identical with crank journal 21, also can have certain differential ratio, and the present invention is not limited to this.
First end of first rod member 71 is arranged on the side face of cam 20 and under cam 20 effects and moves back and forth, and first rod member 71 can be sleeved in the sleeve, moves radially to limit it.
Second rod member 72 is provided with swingably, and first end of second rod member 72 connects the control end 43a of mechanical type change-over valve 43, and second end of second rod member 72 connects second end of first rod member 71.The hinge-point that 72 swings of second rod member are provided with is between its first end and second end.Second rod member 72 can also can be arcuate structure or other possible structure for " V " font structure shown in Figure 6.
In orientation shown in Figure 6; If bent axle 2 clockwise rotates, when piston rod 12 was descending, first rod member 71 moved down; Correspondingly driving second rod member 72 is the center counter-clockwise swing with the hinge-point, and spurs the control end 43a of mechanical switching valve 43 left; When piston rod 12 came downwards to bottom dead point, second rod member, 72 pulling change-over valves were realized switching-over, and this moment, hydraulic oil oil inlet and oil return direction changed; Under the effect of hydraulic oil, piston rod 12 is up, and first rod member 71 moves up; Correspondingly second rod member, 72 cws swing; And promote the control end 43a of change-over valve to the right, and go upward to after top dead centre until piston rod 12, realize switching-over once more.So repeatedly, thus the straight line crank motion and bent axle 2 continuous rotary motion of realization piston rod 12, and then the rotation of ground-engaging wheel 1a.
Except aforesaid tyre formula container handling crane traveling gear, the present invention also provides a kind of container in tire type hoisting crane that comprises aforementioned traveling gear.Other structure of this container in tire type hoisting crane is with reference to prior art, and this paper repeats no more at this.
In sum, container in tire type crane travelling gear of the present invention is by hydraulic oil cylinder driving, and integral body has formed piston crank mechanism, drives bent axle and ground-engaging wheel 1a rotation through hydraulic coupling, and then realizes the walking of container in tire type hoisting crane.Compared with prior art, the present invention mainly has the following advantages:
1) stability is high
The present invention has changed the integral layout of existing traveling gear, has cancelled the use of motor, reductor and chain drive-belt, the situation of chain fracture can not occur, has the advantage of stable and reliable structure, long service life.
2) compact conformation
The present invention need not to rely on and reductor is set increases moment of torsion, and the moment of torsion of its bent axle 2 outputs promptly can directly be used for road wheel 1a is driven, and satisfies the supporting demand of container in tire type hoisting crane, has compact conformation, little, the lightweight advantage of volume.
3) driving power is big
Container in tire type crane travelling gear of the present invention adopts hydraulic ram 1 to drive, and propulsive effort is big; And for two-way cylinder, 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 that the dead point, piston 11 all can externally do work under the driving of hydraulic coupling, has very big power and moment of torsion.
In addition, the present invention also have control convenient, aesthetic in appearance, operate steadily, do not have unbalance loading, advantage such as simple in structure, easy to implement.Therefore, the invention has the beneficial effects as follows conspicuous.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the container in tire type crane travelling gear of a hydraulic oil cylinder driving is characterized in that, comprising:
Be arranged at the road wheel (1a) of portal frame bottom;
Comprise the hydraulic ram (1) of cylinder barrel (10), piston (11) and piston rod (12), said cylinder barrel (10) is provided with swingably, and said piston (11) is captiveed joint with first end of said piston rod (12);
The bent axle (2) that comprises crank journal (21) and conrod journal (22), said crank journal (21) drive with said road wheel (1a) and are connected, and second end of said piston rod (12) is arranged on the said conrod journal (22), the whole piston crank mechanism that forms.
2. container in tire type crane travelling gear according to claim 1 is characterized in that, said hydraulic ram (1) and said bent axle (2) are arranged at the both sides of said road wheel (1a) in pairs.
3. container in tire type crane travelling gear according to claim 1; 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 said bent axle (2), and said balance block is a weight member, is used for balance crankshaft (2) center of gravity.
4. container in tire type crane travelling gear according to claim 1; It is characterized in that said hydraulic ram (1) is a two-way cylinder, its rod chamber and rodless cavity replace oil inlet and oil return; Said piston rod (12) is when stretching out, said rodless cavity oil-feed, rod chamber oil return; During said piston rod (12) withdrawal, said rod chamber oil-feed, rodless cavity oil return.
5. container in tire type crane travelling gear according to claim 1 is characterized in that, said hydraulic ram (1) is a single acting oil cylinder, and its rodless cavity oil inlet and oil return is only arranged, and said piston rod (12) is when stretching out, said rodless cavity oil-feed; During said piston rod (12) withdrawal, said rodless cavity oil return.
6. container in tire type crane travelling gear according to claim 1 is characterized in that, also comprises first solenoid directional control valve (41), pressure sensor (5) and first controller (61), wherein:
Said first solenoid directional control valve (41) is used to control the oil inlet and oil return direction of said hydraulic ram (1);
Said pressure sensor (5) is arranged at the rod chamber and/or the rodless cavity of said hydraulic ram (1), is used to detect the hydraulic fluid pressure of piston (11) when moving to the relevant position;
Said first controller (61) connects said first solenoid directional control valve (41) and said pressure sensor (5), and according to the pressure signal of said pressure sensor (5), controls said first solenoid directional control valve (41) and commutate.
7. container in tire type crane travelling gear according to claim 6; It is characterized in that; Said first solenoid directional control valve (41) is three position four-way directional control valve or the two-position four way change valve that comprises first actuator port, second actuator port, first oil inlet and first return opening; Said first actuator port and second actuator port are connected the rod chamber and the rodless cavity of said hydraulic ram (1) respectively, and said first oil inlet connects Hydraulic Pump (40), and said first return opening connects fuel tank.
8. container in tire type crane travelling gear according to claim 6; It is characterized in that; Said first solenoid directional control valve (41) is a two position three way directional control valve, and said two position three way directional control valve comprises the 3rd actuator port, second oil inlet and second return opening, and said the 3rd actuator port connects the rodless cavity of said hydraulic ram (1); Said second oil inlet connects Hydraulic Pump (40), and said second return opening connects fuel tank.
9. container in tire type crane travelling gear according to claim 1 is characterized in that, also comprises mechanical switching valve (43), cam (20), first rod member (71) and second rod member (72), wherein:
Said mechanical switching valve (43) is provided with control end (43a);
Said cam (20) connects the crank journal (21) of said bent axle (2), and rotates accordingly with said crank journal (21);
First end of said first rod member (71) is arranged on the side face of said cam (20) and under said cam (20) effect and moves back and forth;
Said second rod member (72) is provided with swingably, and first end of said second rod member (72) connects the control end (43a) of said mechanical switching valve (43), and second end of said second rod member (72) connects second end of said first rod member (71).
10. container in tire type crane travelling gear according to claim 1 is characterized in that, also comprises second solenoid directional control valve (42), angular-motion transducer (8) and second controller (62), wherein:
Said second solenoid directional control valve (42) is used to control the oil inlet and oil return direction of said hydraulic ram (1);
Said angular-motion transducer (8) is used to detect the angular transposition that said bent axle (2) rotatablely moves;
Said second controller (62) connects said second solenoid directional control valve (42) and said angular-motion transducer (8), and according to the angular displacement signal of said angular-motion transducer (8), controls said second solenoid directional control valve (42) and commutate.
11. according to each described container in tire type crane travelling gear of claim 1-10; It is characterized in that; The end of the cylinder barrel (10) of said hydraulic ram (1) is provided with hinged seat, and said hydraulic ram (1) is articulated on the fixed parts through said hinged seat.
12. according to each described container in tire type crane travelling gear of claim 1-10; It is characterized in that; The outer wall of the cylinder barrel (10) of said hydraulic ram (1) is symmetrically arranged with two groups of ear seats, and said hydraulic ram (1) is articulated on the fixed parts through said ear seat.
13. a container in tire type hoisting crane is characterized in that, is provided with each described container in tire type crane travelling gear of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210111.6A CN102730559B (en) | 2012-06-25 | 2012-06-25 | Rubber-tyred container crane and its oil cylinder driven running gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210111.6A CN102730559B (en) | 2012-06-25 | 2012-06-25 | Rubber-tyred container crane and its oil cylinder driven running gear |
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| CN102730559A true CN102730559A (en) | 2012-10-17 |
| CN102730559B CN102730559B (en) | 2014-10-15 |
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| CN201210210111.6A Active CN102730559B (en) | 2012-06-25 | 2012-06-25 | Rubber-tyred container crane and its oil cylinder driven running gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595263A (en) * | 2014-12-31 | 2015-05-06 | 太重煤机有限公司 | Double-hydraulic-cylinder acting rotating device and double-hydraulic-cylinder acting hydraulic control system |
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| CN2883298Y (en) * | 2005-09-01 | 2007-03-28 | 秦皇岛通联重工有限公司 | Tyre type straps machine of hydraulic self-balancing wheel set |
| US7597050B2 (en) * | 2005-08-01 | 2009-10-06 | Mhe Technologies, Inc. | Crane return |
| CN202704839U (en) * | 2012-06-25 | 2013-01-30 | 三一重工股份有限公司 | Rubber-tyred container crane and running mechanism driven by cylinder of rubber-tyred container crane |
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| GB2094246A (en) * | 1981-02-21 | 1982-09-15 | Phb Weserhuette Ag | Unitary combined wheel with hydraulic drive |
| US4716729A (en) * | 1986-01-27 | 1988-01-05 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic drive system for a counterweight dolly in counterbalance type crane |
| US7597050B2 (en) * | 2005-08-01 | 2009-10-06 | Mhe Technologies, Inc. | Crane return |
| CN2883298Y (en) * | 2005-09-01 | 2007-03-28 | 秦皇岛通联重工有限公司 | Tyre type straps machine of hydraulic self-balancing wheel set |
| CN202704839U (en) * | 2012-06-25 | 2013-01-30 | 三一重工股份有限公司 | Rubber-tyred container crane and running mechanism driven by cylinder of rubber-tyred container crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595263A (en) * | 2014-12-31 | 2015-05-06 | 太重煤机有限公司 | Double-hydraulic-cylinder acting rotating device and double-hydraulic-cylinder acting hydraulic control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102730559B (en) | 2014-10-15 |
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