CN1368477A - Steering gear of crane travelling gear - Google Patents
Steering gear of crane travelling gear Download PDFInfo
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- CN1368477A CN1368477A CN 01136161 CN01136161A CN1368477A CN 1368477 A CN1368477 A CN 1368477A CN 01136161 CN01136161 CN 01136161 CN 01136161 A CN01136161 A CN 01136161A CN 1368477 A CN1368477 A CN 1368477A
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- traveling gear
- steering hardware
- wheel
- fuselage
- tumbler
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Abstract
The present invention relates to a steering device of traveling gear having a plurality of wheels, each of the traveling gear is provided with a steering device, a plurality of traveling gear and one body formed a traveling machine. The steering device of traveling gear comprises steering gear for steering the wheels of the traveling gear; a body lifter located between the wheels of the traveling gear. Before the wheels of the traveling gear are turned, the body is raised by the body lifter, where the great mass of self-weight of the wheels and the weight of the body are not applied to the wheels of the traveling gear. Thus the tires of the wheels can be prevented from being worn, and air is prevented from leaking out of the tires of the wheels to shorten the time requiring for turning of the wheels so as to increase the operating efficiency of the traveling machine.
Description
Invention field
The present invention relates to a kind of steering hardware that is used for crane travelling gear.Movable crane with traveling gear is used for places such as steel dump and container wharf.This movable crane comprises fuselage and some traveling geaies, and this traveling gear moves fuselage all around.In order to change the service direction of movable crane, the direction that hoisting crane is faced is constant, but wheel turns or turn to.The present invention relates to a kind of steering hardware that is used for traveling gear etc., wherein traveling gear is used for delivering above-mentioned hoisting crane.
Background technology
In traditional movable crane with traveling gear, wheel also rotates in supporting movable crane weight or turns to.Because the wheel of traveling gear is equipped with aerated rubber tyre,, thereby produce gas leakage under above-mentioned state so when wheel rotated or turns to, tire may take place seriously to wear and tear or twist.
Japanese unexamined, publication number is that the utility model of 144580/S58 (1983) has disclosed a kind of technology (prior art-1) to address the above problem.
Fig. 8 schematically shows a kind of steering hardware according to prior art-1.As shown in the figure, the fuselage of movable crane 100 is installed on the traveling gear 110.Oil jack 115 is assemblied in the bottom of the frame 111 of each traveling gear 110, and between the one wheel pairs 112 and 112 of described traveling gear.
Therefore can be by wheel 112 be mentioned from ground F, make their rotate or turn to then, thereby can prevent Tyte Wear and gas leakage.
But there is following problems in prior art-1.
(1) because wheel 112 is raised from ground, therefore need the cost long time wheel 112 is mentioned and to reduce, will spend long time like this and make wheel 112 rotations or turn to, thereby reduce the work efficiency of movable crane 100.
(2) though can be by accelerating the speed of oil jack 115 in lifting and reduction wheel 115 processes, make wheel 112 rotate or turn to time necessary thereby shorten, but the power of oil jack 115 must improve, and oil jack 115 and traveling gear 110 are resisted the intensity of impacting in the lifting process of wheel 112 must increase, so oil jack 115 and traveling gear 110 massiveness that will become.
(3) though can be by the speed of accelerating wheel turns or turning to, make wheel 112 rotate or turn to time necessary thereby shorten, but because the impact that wheel 112 stops suddenly being produced has increased, cause the breaking-up or the wearing and tearing of wheel 112 brake equipments, thereby shortened the service life of this device.
(4) because oil jack 115 is assembled on the traveling gear 110, the fuselage of movable crane 100 is promoted perpendicular to ground by oil jack 115, so fuselage promotes with being tilted on bevelled ground, thereby movable crane 100 will partly be subjected to the overload effect, some steering hardwares may be damaged, thereby cause toppling over of movable crane 100.
In sum, the purpose of this invention is to provide a kind of steering hardware that is used for crane travelling gear, it has the service life of prolongation, and shortened the wheel turns that makes mechanically moving or turned to time necessary with traveling gear, each traveling gear all is furnished with a described steering hardware, thereby improved the work efficiency of mechanically moving, make that the oil jack and the traveling gear of mechanically moving are smaller and more exquisite, even and the wheel of mechanically moving is rotated safely or turn to.
Summary of the invention
According to first feature of the present invention, provide a kind of steering hardware that is used to have the traveling gear of some wheels.Each traveling gear all is furnished with a described steering hardware, and some described traveling geaies and fuselage have constituted a mechanically moving jointly.The steering hardware of each described traveling gear comprises: (1) steering hardware, and it is used to make the wheel of described traveling gear to turn to; (2) fuselage jacking system, it is between the wheel of described traveling gear.Before the wheel of traveling gear turned to, the fuselage jacking system of traveling gear so promoted fuselage, and promptly wheel is not subjected to the major part of own wt and the effect of fuselage weight.
According to second feature of the present invention, provide a kind of steering hardware with first feature.Each described traveling gear is installed on the fuselage of mechanically moving, thereby can freely turn round.Fuselage jacking system in the steering hardware of each described traveling gear vertically is installed on the fuselage of mechanically moving and is had a bottom.Base with the basal surface that contacts with ground is installed in the bottom of described each fuselage jacking system, so that can rotate freely on the bottom.
According to the 3rd feature of the present invention, provide a kind of steering hardware with first feature.The fuselage jacking system of the steering hardware of each described traveling gear is an oil jack.Before the wheel of traveling gear turned to, the oil jack full extension of the steering hardware of traveling gear was so that be promoted to a kind of like this degree with fuselage, and promptly wheel is not subjected to the major part of own wt and the effect of fuselage weight.
According to the 4th feature of the present invention, provide a kind of steering hardware with first feature.The described steering hardware of the steering hardware of each described traveling gear comprises: (1) tumbler, and it is installed on the wheel so that turn to by described steering hardware; (2) deflector, it makes tumbler and wheel rotate together; (3) fixed stop piece, it stops tumbler to rotate, and (4) stationkeeping device, and it is used to make the position of tumbler to fix with respect to the fixed stop piece.The tumbler of each steering hardware has block in its outside, and described block contacts with the fixed stop piece to stop tumbler to rotate.
According to the 5th feature of the present invention, provide a kind of steering hardware with the 4th feature.Deflector in each steering hardware of the described steering hardware of each described traveling gear is an oil hydraulic cylinder.Between each described oil hydraulic cylinder and oil pressure pump, be provided with a flow regulating valve with loop oil pressure regulating action.
As described below according to the advantage that first feature of the present invention provided.When the fuselage jacking system is promoted to a kind of like this degree with fuselage, be that wheel is not subjected to the major part of own wt and the effect of fuselage weight, wheel turns or turn to then, at this moment tire can not be subjected to because the wearing and tearing that friction caused between they and the floor are leaked gas thereby perhaps produce distortion.The distance that fuselage rises is short more, then required time of lifting fuselage just short more, in fact, the hoisting depth of the fuselage jacking system of steering hardware has reduced; Therefore wheel can turn at short notice, has so just improved the work efficiency of mechanically moving.
Second advantage that feature provided according to the present invention is as described below.Mechanically moving even on bevelled ground, also can walk and keep fuselage at level attitude.In addition because the fuselage jacking system is vertically fixed on the fuselage of mechanically moving, even therefore on bevelled ground fuselage also keep on even keel to be promoted by the fuselage jacking system; So the mechanically moving that is so promoted on this bevelled ground is stable, when wheel turns or turn to Shi Buhui to topple.And, because pedestal is fixed on the bottom of fuselage jacking system so that freely rotate on the bottom, even so the basal surface of pedestal on bevelled ground, also can carry out aspectant the contact with ground.Therefore when fuselage is raised, the pedestal of fuselage jacking system can slippage, and the fuselage jacking system can not tilt.
The 3rd advantage that feature provided according to the present invention is as described below.Because the fuselage jacking system is an oil jack, so simple in structure.Except when beyond during the oil jack full extension, fuselage is also so promoted, the wheel of the mechanism of promptly walking is not subjected to the major part of own wt and the effect of fuselage weight; Therefore do not need to be used to regulate the mechanism of the stroke of oil jack, thereby make the simplifying the structure of fuselage jacking system.
The 4th advantage that feature provided according to the present invention is as described below.By the deflector rotating diverting member, thereby make wheel turns or turn to.In addition, be braked because the tumbler of each steering hardware contacts with described fixed stop piece by a block, tumbler can be braked on by the determined exact location of this block.And so the position of the tumbler of being braked by the block of each steering hardware and fixed stop piece can be fixed with respect to the fixed stop piece by the stationkeeping device; Therefore when moving machine-walking, the location of wheel can be not destroyed, thereby the assurance mechanically moving reliably, advance safely.
The 5th advantage that feature provided according to the present invention is as described below.The flow rate of all oil hydraulic cylinders keeps evenly, so the stretching speed of all oil hydraulic cylinders is consistent, even therefore the load that wheel bore differs from one another each other, but the stretching, extension of all oil hydraulic cylinders keeps identical with contraction speed; Thereby all wheels all rotate with a kind of identical speed or turn to.Therefore any one tumbler can or not cause big impact than the velocity of rotation height of other tumbler to arrive corresponding fixed stop piece.
The simple description of accompanying drawing
Below by the description of being carried out in conjunction with the accompanying drawings, it is more obvious that the features and advantages of the present invention will become, wherein:
Fig. 1 is the lateral plan that the part of the movable crane shown in Fig. 6 and Fig. 7 is amplified, and wherein shows the details of the traveling gear 20 with steering hardware of the present invention;
Fig. 2 is the schematic cross sectional views of A-A line in Fig. 1;
Fig. 3 is the schematic cross sectional views of B-B line in Fig. 1, and it shows the structure of the steering hardware among Fig. 1;
Fig. 4 is the fundamental diagram of the steering hardware among Fig. 3;
Fig. 5 shows a kind of block scheme of oil hydraulic circuit of oil hydraulic cylinder of the steering hardware that is used for controlling and drive Fig. 3;
Fig. 6 shows the front elevation of the movable crane with traveling gear, and each traveling gear all has one according to steering hardware of the present invention;
Fig. 7 shows the lateral plan of the movable crane among Fig. 6;
Fig. 8 has schematically described the steering hardware in the prior art-1.
Detailed description of preferred embodiment
Referring now to accompanying drawing according to a preferred embodiment of the present invention the steering hardware that is used for crane travelling gear is described.
At first describe a movable crane 1 that is equipped with traveling gear, each traveling gear all has a described steering hardware 30.
With reference to accompanying drawing 6 and 7, movable crane 1 is used for steel dump and container freight station etc., and it comprises: the crane body 10 of a kind of bridge type or other shape and some traveling geaies 20, wherein crane body 10 is installed on the traveling gear 20.
In the both sides of crane body 10, a horizontal connector 15 is arranged, the end of supporting leg before and after it is used to connect.Each attaching parts 15 is supported on a pair of traveling gear, and a traveling gear is supporting the front end of described attaching parts 15, and another traveling gear is supporting the rear end of described attaching parts 15.
Each traveling gear has an equalizer bar 21, and it is supported so that can freely turn round by the respective end of corresponding attaching parts 15 rotationally.A pair of fork 22 be positioned at each equalizer bar 21 below, a fork upper end of 22 is contained in the front end of described equalizer bar 21, and the upper end of another fork 22 is contained in the rear end of described equalizer bar 21, can freely rotate thereby pitch 22.Wheel 23 with an aerated rubber tyre is positioned at the bottom of each fork 22, thereby can freely rotate.
Therefore, when goods was suspended from crane body 10, the movable crane 1 of being furnished with traveling gear 20 can move on the F of ground.In addition, because traveling gear 20 is installed in the bottom of crane body 10 so that can freely turn round, so even movable crane 1 also can walk and keep crane body 10 to be positioned at level attitude on inclined-plane F.
As shown in Figure 1, each traveling gear all is provided with a steering hardware 30.It comprises: oil jack 31 is used for hoisting crane fuselage 10; Steering hardware 40 is used to make the wheel 23 of described traveling gear 20 to turn to.
As depicted in figs. 1 and 2, the oil jack 31 of the steering hardware 30 of each traveling gear 20 is positioned between the one wheel pairs 23 of described traveling gear 20.Piston rod 32 directed downwards of each oil jack 31, and described oil jack 31 oil cylinder be fixed on the corresponding attaching parts 15 of crane body 10 by support 34.The support 34 of oil jack 31 that is used for the steering hardware 30 of each traveling gear 20 is set to the equalizer bar 21 that can avoid with described traveling gear and interferes with each other.In other words, the oil jack 31 of the steering hardware 30 of each traveling gear 20 is installed on the corresponding attaching parts 15, and be not subjected to the influence of the equalizer bar 21 of described traveling gear 20, thus oil jack 31 can always keep vertical with attaching parts 15, and irrelevant with the revolution of equalizer bar 21.Oil jack 31 is equivalent to the fuselage jacking system described in claims of the present invention.
Except oil jack 31, any can lifting moving machinery fuselage or the device of the crane body 10 of movable crane 1 can be used as the fuselage jacking system.
When the piston rod 32 of four oil jacks 31 stretched out fully, crane body 10 was so promoted, and promptly wheel 23 still keeps and the contacting of ground F, but was not subjected to the effect of the weight of self most of weight and crane body 10.In other words, after crane body 10 was raised, wheel 23 still contacted with ground F, but oil jack 31 is being supported most of weight of crane body 10, thereby the wheel 23 of traveling gear 20 is not subjected to the effect of this part weight.
The bottom of the piston rod 32 of each oil jack 31 is shaped as spherical, and is installed in the top of bottom for the jack pad assembly 35 on plane.
By above-mentioned structure, when stretching oil jack 31, crane body 10 is raised, thereby load suffered on the wheel 23 reduces, and wheel 23 still keeps contacting with ground F, therefore wheel 23 is turned to and neither can cause because the big wearing and tearing of the tire that huge friction brought between tire and the ground F can not cause owing to tire produces the gas leakage that distortion brings under the total weight of crane body 10 yet.In addition, because jack pad assembly 35 links to each other with the bottom of the piston rod 32 of each oil jack 31, it can freely rotate in the bottom, even so when ground F tilts, the basal surface of jack pad assembly 35 also contacts with ground F is aspectant, therefore when crane body 10 is raised, jack pad assembly 35 can slippage, and oil jack 31 can not tilt.
Simultaneously, the distance that crane body 10 is raised is short more, then be used for making crane body 10 risings and decline time necessary just short more, in fact, the climb of crane body 10 has reduced, therefore wheel 23 can turn at short notice, has so just increased the work efficiency of movable crane 1.
And oil jack 31 comes the stroke of adjusting piston bar 32 without any need for mechanism, so the structure of steering hardware 30 is very simple.
In addition, because the range of lift of crane body 10 has reduced, therefore can promote and reduction crane body 10 with relatively low speed, do not need to increase the intensity that the opposing in crane body 10 lifting process of oil jack 31 and traveling gear 20 is impacted, so oil jack 31 and traveling gear 20 can be compact more.
Below steering hardware 40 will be described.
As shown in Figure 3, steering hardware 40 is between the one wheel pairs 23A and 23B of each traveling gear 20.Each steering hardware 40 comprises: a pair of tumbler 41A and 41B, a pair of oil hydraulic cylinder 45 and 45, a pair of fixed stop piece 46 and 46 and a pair of stationkeeping device 50 and 50.
Tumbler 41A and 41B are separately fixed between a pair of fork 22A and 22B of each traveling gear 20.In Fig. 3, the right side that is centered close to tumbler 41A of crane body 10.
All have block 42A, 42B and 42C at each the tumbler 41A of each steering hardware 40 and the outside of 41B.As shown in Figure 3, as can be seen from the above, the block 42A of tumbler 41A generally is in a straight line with wheel 23A, but depart from the rotating shaft of wheel 23A and towards the direction at traveling gear 20 centers, the block 42B of tumbler 41A is positioned at the side of wheel 23A as mentioned above, departs from the rotating shaft of wheel 23A and towards the outside of traveling gear 20.Block 42A and the 42B of tumbler 41B are arranged in the same way.
As shown in Figure 3, the block 42C of each tumbler 41A and 41B is between block 42A and 42B.
When wheel 23A when the position shown in Fig. 3 clockwise rotates or turns to 9 °, the block 42C of the tumbler 41A on right side will be stoped by the removable backing block 47 that will describe below one among Fig. 3.
When wheel 23B when the position shown in Fig. 3 clockwise rotates or turns to 21 °, the block 42C of the tumbler 41B in left side will will be described below one among Fig. 3, movably backing block 47 stops.
Shorter than distance from the center of fork 22A from this center to block 42A and 42B to the distance of the block 42C of tumbler 41A.This situation is equally applicable to tumbler 41B.
In the outside of each tumbler 41A and 41B, between block 42A and 42B, be equipped with backing block groove 43A, 43B and 43C.The backing block groove 43A of tumbler 41A and 43B are positioned in fork about center of 23A and alternate 90 °.This situation is equally applicable to tumbler 41B.
As shown in Figure 3, the backing block groove 43C of right hand steering part 41A between backing block groove 43A and 43B, from the center of fork 22A to the alternate each other angle of straight line of backing block groove 43A and 43C, for example 9 °.
As shown in Figure 3, the locking groove 43C of left side tumbler 41B between backing block groove 43A and 43B, from the center of fork 22B to the alternate each other angle of straight line of backing block groove 43A and 43C, for example 21 °.
A pair of oil hydraulic cylinder 45 and 45 between a pair of fork 22A and 22B of each traveling gear 20, and is parallel to the equalizer bar 21 of described traveling gear 20 by horizontal setting.The top of the piston rod of an oil hydraulic cylinder 45 is rotatably connected on the tumbler 41A, and the top of the piston rod of another oil hydraulic cylinder 45 is rotatably connected on the tumbler 41B.
By above-mentioned structure, when a pair of oil hydraulic cylinder 45 and 45 of each traveling gear 20 synchronously extended or shrinks, tumbler 41A and 41B also synchronously rotated with fork 22A and 22B, thereby one wheel pairs 23A and 23B turn to.These oil hydraulic cylinders 45 are equivalent to the deflector described in claims of the present invention.
A pair of fixed stop piece 46 is positioned on the track of the block 42A of the tumbler 41A of steering hardware 30 of each traveling gear 20 and 41B and 42B.Described a pair of fixed stop piece 46 is fixed on the bottom of the equalizer bar 21 of described traveling gear 20.When wheel 23A aligns with equalizer bar 21, the block 42A of tumbler 41A is stopped by a wherein end of corresponding fixed stop piece 46, when wheel 23A and equalizer bar 21 were vertical, the block 42B of tumbler 41A was stopped by the other end of corresponding fixed stop piece 46.This situation is equally applicable to wheel 23B, tumbler 41B and corresponding fixed stop piece 46.
Each fixed stop piece 46 matches with a removable backing block 47, and backing block 47 can front and back slippage freely.The tip of the piston rod of oil hydraulic cylinder 48 links to each other with the rear end of the removable backing block 47 of each fixed stop piece 46, and piston rod is released and regained to oil hydraulic cylinder 48 giving prominence on the outside face of described fixed stop piece 46, and regain removable backing block 47.
In addition, each fixed stop piece 46 matches with a fastener 51, and the tip of the piston rod of oil hydraulic cylinder 52 links to each other with the rear portion of fastener 51, fastener 51 and oil hydraulic cylinder 52 have constituted piston fixer 50 described above, therefore when the piston rod of oil hydraulic cylinder 52 is released or is regained, fastener 51 stretches out the outside face of fixed stop piece 46, and is retracted.
Shown in Fig. 4 (A), the a pair of tumbler 41A of the steering hardware 30 by making each traveling gear 20 and the block 42A of 41B contact with 46 with a pair of fixed stop piece 46, and make fastener 51 and backing block groove 43A engagement by using oil hydraulic cylinder 52, thereby the position of a pair of tumbler 41A and 41B is fixed with respect to fixed stop piece 46 and 46, so one wheel pairs 23A is parallel with corresponding attaching parts 15 with 23B.So movable crane 1 can the front and back walking.And because when movable crane moves, the location of wheel 23 can be not destroyed, so the operation that hoisting crane can safety and can not broken down.
Shown in Fig. 4 (C), contact with 46 with a pair of fixed stop piece 46 by the block 42B that makes a pair of tumbler 41A and 41B, and make fastener 51 and backing block groove 43B engagement by using oil hydraulic cylinder 52, thereby the position that makes a pair of tumbler 41A and 41B is with respect to a pair of fixed stop piece 46 and 46 and be fixed, so one wheel pairs 23A keeps vertical with 23B with corresponding attaching parts 15.So movable crane 1 can about the walking.And because when movable crane moves, the location of wheel 23 can be not destroyed, so the operation that hoisting crane can safety and can not broken down.
For movable crane 1 is rotated, removable backing block 47 stretches out the outside face of fixed stop piece 46 by oil hydraulic cylinder 48, and the block 42C of tumbler 41A and 41B is contacted with removable backing block 47, as described in Fig. 4 (B).Fastener 51 meshes with backing block groove 43C by oil hydraulic cylinder 52 then.The position of tumbler 41A and 41B just is fixed with respect to a pair of fixed stop piece 46 and 46 like this, and wheel 23A and 23B form 9 ° and 21 ° with respect to corresponding attaching parts 15 respectively.Therefore, because when movable crane moves, the location of wheel 23 can be not destroyed, so the operation that hoisting crane can safety and can not broken down.
Because each wheel 23A of each traveling gear 20 and 23B are along the tangential direction of its track, the wheel 23A of described traveling gear and the wearing and tearing of 23B have been suppressed, wheel-the supporting construction that comprises fork 22A, the 22B of described traveling gear can not be subjected to excessive stress, and movable crane 1 can rotate under very little propulsive effort effect simultaneously.
If so also can, that is: the block 42C of tumbler 41A and backing block groove 43C are so arranged so that make the tangential direction of wheel 23A along the track of wheel, and block 42C contacts with removable backing block 47, and the position of tumbler 41A is fixed with respect to fixed stop piece 46 by stationkeeping device 50 simultaneously.This situation is equally applicable to tumbler 41B.Therefore, the tumbler 41A of traveling gear 20 and the block 42C of 41B and backing block groove 43C can be positioned in any optimum position that draws according to the walking road surface and the radius of gyration of movable crane 1, and can not limit above-mentioned angle or position.
With reference to Fig. 5, the oil hydraulic circuit 60 that is used to control and drive oil hydraulic cylinder 45 is described below.
Though Fig. 5 only shows the oil hydraulic circuit of four oil hydraulic cylinders 45 of two steering hardwares 30 on one of them that is used for controlling two attaching partss 15 being assembled in crane body 10, same loop also is applied to be installed in four oil hydraulic cylinders 45 of two steering hardwares 30 on another attaching parts 15.
In Fig. 5, label 61 is an oil pressure pump.Between oil pressure pump 61 and four oil hydraulic cylinders 45, be provided with a distributing valve 64.Distributing valve 64 has growth pass " A " and dwindles pass " B ", wherein increases the chamber 45A of oil hydraulic cylinder 45 that pass " A " is supplied to oil the end opposite of piston rod, dwindles among the chamber 45B of oil hydraulic cylinder 45 that pass " B " is supplied to oil in rod end.Therefore, change the feeding passage by distributing valve 64, oil hydraulic cylinder 45 can synchronously stretch out or withdraw.
Between the chamber 45A of each oil hydraulic cylinder 45 of distributing valve 64 and piston rod end opposite, be provided with a flow regulating valve 62.Flow regulating valve 62 with the oil pressure regulating action in counter flow pipe is conditioned so that make that the flow rate of the chamber 45A that flows to all oil hydraulic cylinders 45 is even.
Between the chamber 45B of each oil hydraulic cylinder 45 of distributing valve 64 and rod end, be provided with a flow regulating valve 63.Flow regulating valve 63 with the oil pressure regulating action in counter flow pipe is conditioned so that make that the flow rate of the chamber 45B that flows to all oil hydraulic cylinders 45 is even.
Therefore, stretch out and the contraction speed of all oil hydraulic cylinders 45 is uniformly, even the suffered load of wheel differs from one another, so all wheels 23 rotate with a kind of identical speed or turn to.Any one tumbler 41A and 41B can be than the velocity of rotation height of other tumbler not arrive corresponding fixed stop piece 46, so can not cause big collision.
The operation and the effect of steering hardware 30 are described now.
For along certain direction, for example fore-and-aft direction rotates movable crane 1, contact with fixed stop piece 46 by the block 42A that makes tumbler 41A and 41B, and the backing block groove 43A engagement of the fastener by making stationkeeping device 50 51 and tumbler 41A and 41B, thereby make the position of tumbler 41A and 41B fix with respect to fixed stop piece 46.Therefore the direction of wheel 23A and 23B is fixed, and this direction can not change when movable crane 1 walking, so the operation that hoisting crane can safety, and can not break down.
For the service direction that makes movable crane 1 from front and back about changing into to.Movable crane 1 stops, and the direction of wheel 23 changes.The step of the direction that changes wheel 23 will be described below.
Movable crane stops, and oil jack 31 stretches out fully so that crane body 10 is promoted to a kind of like this degree, and promptly wheel 23 is not subjected to the effect of the weight of self most of weight and crane body 10.Because oil jack 31 is vertically fixed on the attaching parts 15 of crane body 10, and it is irrelevant with the equalizer bar 21 of traveling gear 20, and jack pad assembly 35 is fixed on the end of the piston rod 32 of oil jack 31, so that jack pad assembly 35 is freely rotated endways, the basal surface of jack pad assembly 35 contacts with ground F is aspectant, even when ground F tilts.
Therefore therefore, even oil jack 31 stretches on inclined-plane F, be raised but crane body 10 is on even keels, when crane body 10 is raised on this inclined-plane F, jack pad assembly 35 can slippage, and oil jack 31 can not tilt.Even therefore when wheel 23 rotated on this inclined-plane F or turns to, movable crane 1 also was stable, and without any the sign that topples.
Then, the oil hydraulic cylinder of stationkeeping device 50 52 shrinks, so that remove contacting of fastener 51 and backing block groove 43A, thereby makes tumbler 41A and 41B unfettered.
Then, make oil hydraulic cylinder 45 stretch out so that rotating diverting member 41A and 41B by oil hydraulic circuit 60, and wheel 23A and 23B.Because wheel 23A and 23B are not subjected to the effect of the weight of the major part of their own wts and crane body 10, therefore the rotation of wheel 23A and 23B can not cause a large amount of wearing and tearing of the tire that produces owing to the huge friction between tire and the ground F, can not cause owing to tire is in the gas leakage that is distorted and produces under the whole weight of crane body 10 yet.
Because flow regulating valve 62 makes that the flow rate of the chamber 45A that flows to all oil hydraulic cylinders 45 is even, so stretch out and the contraction speed of all oil hydraulic cylinders 45 are uniform, even wheel 23 suffered loads differ from one another, so all wheels 23 all rotate with a kind of same speed or turn to.The velocity of rotation of any one tumbler 41A and 41B can be than the velocity of rotation height of other tumbler, running into corresponding fixed stop piece 46, thereby can not cause big collision.
The block 42B of tumbler 41A and 41B contacts with fixed stop piece 46 so that prevent wheel 23A and 23B and rotates or turn to then.Oil hydraulic cylinder 52 stretches so that with the backing block groove 43B engagement of fastener 51 with tumbler 41A and 41B, thereby the position of tumbler 41A and 41B is fixed with respect to fixed stop piece 46.Therefore wheel 23A and 23B rotate 90 ° and be fixed.
In sum, steering hardware 30 according to the present invention has the following advantages: long service life, the wheel 23 of traveling gear 20 can rotate or turn at short notice, thereby improved the work efficiency of movable crane 1, oil jack 31 and traveling gear 20 can be smaller and more exquisite, even on the F of bevelled ground, wheel 23 also can rotate or turn to.
Under the prerequisite that does not break away from spirit of the present invention and inner characteristic, the present invention also can have other particular form.Therefore it is descriptive rather than restrictive that the embodiment above is considered in every respect; protection scope of the present invention is determined by appended claims; rather than determined by the fwd specification sheets, so all are believed to comprise within the present invention in the meaning of the equivalent of claims and the change in the scope.
Claims (5)
1, a kind of steering hardware that is used to comprise the traveling gear of some wheels, each traveling gear all is equipped with a described steering hardware, some described traveling geaies and a fuselage have constituted a mechanically moving, and the described steering hardware of each described traveling gear comprises:
Steering hardware, it is used to make the wheel of described traveling gear to turn to; And
The fuselage jacking system, it is between the wheel of described traveling gear;
The fuselage jacking system of described traveling gear so promotes described fuselage, and promptly before wheel turned to, the wheel of traveling gear was not subjected to the major part of own wt and the effect of fuselage weight.
2, steering hardware as claimed in claim 1 is characterized in that,
Each described traveling gear is mounted on the fuselage of described mechanically moving so that can turn round freely,
The described fuselage jacking system of the described steering hardware of each described traveling gear vertically is installed on the fuselage of mechanically moving and is had a bottom,
A base that has with the ground bottom face in contact is installed in the bottom of each described fuselage jacking system so that can freely rotate in described bottom.
3, steering hardware as claimed in claim 1 is characterized in that,
The fuselage jacking system of the steering hardware of each described traveling gear is an oil jack,
The oil jack full extension of the steering hardware of described traveling gear is so that so promote fuselage, and promptly before wheel turned to, the wheel of described traveling gear was not subjected to the major part of own wt and the effect of fuselage weight.
4, steering hardware as claimed in claim 1 is characterized in that, the described steering hardware of each of the steering hardware of each described traveling gear comprises:
Tumbler, it is installed on the wheel so that turned to by described steering hardware;
Deflector, it is used to rotate described tumbler and wheel;
The fixed stop piece, it is used to stop described tumbler to rotate; And
The stationkeeping device, it is used for the position of described tumbler is fixed with respect to described fixed stop piece,
The outside at described tumbler has block, and this block contacts with described fixed stop piece so that stop described tumbler to rotate.
5, steering hardware as claimed in claim 4, it is characterized in that, the described deflector of each steering hardware of the steering hardware of each described traveling gear is an oil hydraulic cylinder, is provided with a flow regulating valve with the oil pressure regulating action in counter flow pipe between each described oil hydraulic cylinder and an oil pressure pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP020238/2001 | 2001-01-29 | ||
| JP2001020238A JP2002226169A (en) | 2001-01-29 | 2001-01-29 | Wheel turning device of bogie car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1368477A true CN1368477A (en) | 2002-09-11 |
| CN1326763C CN1326763C (en) | 2007-07-18 |
Family
ID=18885976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011361611A Expired - Fee Related CN1326763C (en) | 2001-01-29 | 2001-11-09 | Steering gear of crane travelling gear |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2002226169A (en) |
| CN (1) | CN1326763C (en) |
| HK (1) | HK1049651B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332871C (en) * | 2005-09-29 | 2007-08-22 | 上海市第二市政工程有限公司 | Method for kingsize gate-type crane translational transfer and its rotary device |
| CN102173364A (en) * | 2011-02-27 | 2011-09-07 | 中铁一局集团有限公司 | Gantry crane with traverse moving function and use method thereof |
| CN102730557A (en) * | 2012-06-26 | 2012-10-17 | 三一集团有限公司 | Auxiliary turning method and auxiliary revolving frame of tyre type portal crane |
| CN104494697A (en) * | 2014-12-12 | 2015-04-08 | 河南省矿山起重机有限公司 | Vehicle chassis and traveling mechanism thereof |
| CN104724619A (en) * | 2015-04-07 | 2015-06-24 | 武桥重工集团股份有限公司 | Walking landing leg system of railway rescue crane |
| CN105883635A (en) * | 2016-06-22 | 2016-08-24 | 中国铁道科学研究院运输及经济研究所 | Travel trolley of container gantry crane and method for quickly changing wheels |
| CN107777551A (en) * | 2016-08-25 | 2018-03-09 | 河南省大方重型机器有限公司 | A kind of crane runs reversing arrangement in length and breadth |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229402B (en) * | 2011-05-23 | 2013-06-19 | 三一集团有限公司 | Rubber-tired container gantry crane and steering device thereof |
| JP6607484B2 (en) * | 2015-04-28 | 2019-11-20 | 株式会社三井Ｅ＆Ｓマシナリー | Quay crane and logistics terminal |
| CN107473146A (en) * | 2017-09-28 | 2017-12-15 | 谢秀铅 | A kind of automatic travelling device of aerial work platform |
| CN108100867B (en) * | 2018-02-06 | 2024-01-23 | 上海振华重工(集团)股份有限公司 | Crane travelling mechanism carrying tool |
| CN111038411A (en) * | 2020-01-09 | 2020-04-21 | 湖南汽车工程职业学院 | Steering device capable of reducing tire wear during automobile steering |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3281869B2 (en) * | 1998-09-07 | 2002-05-13 | 三菱重工業株式会社 | Seismic isolation device for cranes |
-
2001
- 2001-01-29 JP JP2001020238A patent/JP2002226169A/en active Pending
- 2001-11-09 CN CNB011361611A patent/CN1326763C/en not_active Expired - Fee Related
-
2003
- 2003-03-11 HK HK03101730.0A patent/HK1049651B/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332871C (en) * | 2005-09-29 | 2007-08-22 | 上海市第二市政工程有限公司 | Method for kingsize gate-type crane translational transfer and its rotary device |
| CN102173364A (en) * | 2011-02-27 | 2011-09-07 | 中铁一局集团有限公司 | Gantry crane with traverse moving function and use method thereof |
| CN102730557A (en) * | 2012-06-26 | 2012-10-17 | 三一集团有限公司 | Auxiliary turning method and auxiliary revolving frame of tyre type portal crane |
| CN104494697A (en) * | 2014-12-12 | 2015-04-08 | 河南省矿山起重机有限公司 | Vehicle chassis and traveling mechanism thereof |
| CN104494697B (en) * | 2014-12-12 | 2016-09-21 | 河南省矿山起重机有限公司 | Vehicle chassis and walking mechanism thereof |
| CN104724619A (en) * | 2015-04-07 | 2015-06-24 | 武桥重工集团股份有限公司 | Walking landing leg system of railway rescue crane |
| CN105883635A (en) * | 2016-06-22 | 2016-08-24 | 中国铁道科学研究院运输及经济研究所 | Travel trolley of container gantry crane and method for quickly changing wheels |
| CN107777551A (en) * | 2016-08-25 | 2018-03-09 | 河南省大方重型机器有限公司 | A kind of crane runs reversing arrangement in length and breadth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1326763C (en) | 2007-07-18 |
| HK1049651B (en) | 2008-02-29 |
| JP2002226169A (en) | 2002-08-14 |
| HK1049651A1 (en) | 2003-05-23 |
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