CN211871170U - Lifting device for cross supporting rods of vehicle bogie - Google Patents

Abstract

The utility model provides a vehicle bogie cross bracing piece overhead hoist relates to vehicle spare part and transports technical field. The lifting device for the cross supporting rod of the vehicle bogie comprises a lifting ring, two connecting arms, two lifting arms and a self-locking handle; one end of each connecting arm is movably connected with one end of one suspension arm; the two suspension arms are arranged in a crossed manner and hinged together, one end of each suspension arm, which is far away from the connecting arm, is provided with a clamping part, the clamping part is in an arc shape, a handle hole is arranged at one suspension arm, and a locking head column is arranged at the corresponding position of the other suspension arm; the self-locking handle is movably connected in the handle hole and is buckled at the lock head column through the self-locking handle to lock the two suspension arms.

Description

Lifting device for cross supporting rods of vehicle bogie

Technical Field

The utility model relates to a vehicle spare part transports technical field, particularly, relates to a vehicle bogie cross bracing piece overhead hoist.

Background

The bogie cross support device is an important accessory of a railway wagon bogie, and has three main structures, namely two support rods, two pinch plates and connecting bolts. The anti-diamond rigidity and the anti-shear rigidity of the bogie can be increased, and the snaking motion stability is improved. In the maintenance process of the cross support device, the state of maintaining two cylindrical support rods is mainly used. After each supporting rod is disassembled, the supporting rods need to enter special detection equipment one by one for detection, and the supporting rods can be assembled again for use after being qualified. The weight of every bracing piece all is more than 20Kg, and at present, the bracing piece is sent into one by one, is taken out two processes of special check out test set, and the bracing piece does not have hoist technique, scheme, but the operating mode that adopts two people to cooperate, manual lift universally, causes that manual operation has intensity of labour big, work efficiency low problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving to a certain extent and adopt two people's cooperations, the operation mode of manual lift to send into the bracing piece one by one, take out special check out test set, cause manual operation to have the problem that intensity of labour is big, work efficiency hangs down.

In order to solve the problems, the utility model provides a lifting device for the cross support rod of the vehicle bogie, which comprises a lifting ring, two connecting arms, two suspension arms and a self-locking handle;

one end of each connecting arm is movably connected with one end of one suspension arm through the hanging ring, and one end, far away from the hanging ring, of each connecting arm is hinged with one end of one suspension arm;

the two suspension arms are arranged in a crossed mode and hinged together, one end, far away from the connecting arm, of each suspension arm is provided with a clamping portion, the clamping portion is in an arc shape, a handle hole is formed in one suspension arm, and a lock head column is arranged in the position, corresponding to the other suspension arm, of the other suspension arm;

the self-locking handle is movably connected in the handle hole, and the two suspension arms are locked at the lock head column through the self-locking handle.

Further, the auto-lock handle includes dwang, anticreep portion and L shape pin, dwang swing joint is in the handle hole, anticreep portion sets up the rear end department of dwang, anticreep portion is used for the restriction the dwang is deviate from forward the handle hole, L shape pin sets up the front end department of dwang, through inciting somebody to action L shape pin hook lock the lock head post in order to pin two the davit.

Further, the dwang with handle hole threaded connection, the inner wall in handle hole is provided with first screw, the surface of dwang is provided with the second screw, the second screw cooperatees with first screw, works as anticreep portion contradicts to when the davit, L shape hook rod hook lock the lock head post.

Further, the anti-dropping part is a transverse extending rod which is vertically arranged at the rear end of the rotating rod.

Further, anticreep portion is a perpendicular pole of extending, it is in to erect and extend the coaxial setting of pole the rear end department of dwang, erect and extend the diameter of pole and be less than the diameter of dwang, erect and extend the pole surface and be provided with the third screw thread, be connected with the nut on the third screw thread, the diameter of nut is greater than the diameter of dwang.

Further, the nut is a dead lock nut.

Furthermore, the lifting device for the cross support rods of the vehicle bogie further comprises a plurality of connecting pieces, the hinged parts of the two suspension arms are hinged together through the connecting pieces, and the connecting arms and the hinged parts of the suspension arms are hinged together through the connecting pieces;

the connecting piece comprises a first screw and a first threaded sleeve, the end parts of the first screw and the first threaded sleeve are respectively provided with a first limiting head, the first screw is matched with the first threaded sleeve, the length of the first threaded sleeve is equal to the sum of the thickness of the connecting arm and the thickness of the suspension arm, and the thickness of the suspension arm is equal to the thickness of the connecting arm.

Further, two the linking arm is kept away from the one end of davit is provided with the lewis hole respectively, rings include the breach ring, the breach department of breach ring is provided with first hanger plate and second hanger plate respectively, first hanger plate department is provided with the second screw, second hanger plate department be provided with the second round hole that the second screw corresponds, the activity is inserted in the second round hole and is equipped with the second inserted bar, second inserted bar one end is provided with second spacing head, the coaxial second screw rod that is provided with of the other end of second inserted bar, the diameter of second screw rod is less than the diameter of second inserted bar, the second screw rod with the second screw cooperatees.

Further, the distance between the first hanging plate and the second hanging plate is equal to the thickness of the two connecting arms.

Furthermore, a protective sleeve wraps one side face, opposite to the two clamping parts, of the clamping part.

Compared with the prior art, the utility model provides a pair of vehicle bogie cross bracing pole overhead hoist has but not be limited to following technological effect:

the lifting device is connected with lifting equipment through a lifting ring, under the self-gravity of the whole lifting device for the cross support rod of the vehicle bogie, the two clamping parts are closed, then the self-locking handle is rotated to separate the self-locking handle from the lock head column, the self-locking handle is pulled outwards to reduce the included angle between the adjacent connecting arm and the suspension arm, further the two clamping parts are opened, the lifting device for the cross support rod of the vehicle bogie is moved to the position right above the support rod through the lifting equipment, the lifting device for the cross support rod of the vehicle bogie falls down, further the two clamping parts in the opened state are wrapped on the surface of the support rod, further the two clamping parts are closed under the self-gravity and clamp the support rod, finally the self-locking handle is rotated to enable the self-locking handle to be buckled at the lock head column to lock the two suspension arms, after the two suspension arms in the closed state of the clamping parts are locked, the, thereby avoiding the problem that the supporting rod falls off after being supported; the problem of adopt the operation mode of two people's cooperations, manual lift to send into the bracing piece one by one, take out special check out test set among the prior art, cause manual operation to have intensity of labour big, work efficiency low is solved.

Drawings

Fig. 1 is a schematic front view of a vehicle bogie cross support bar trolley according to an embodiment of the present invention in one state;

fig. 2 is a schematic front view of a vehicle bogie cross support bar handling device according to an embodiment of the present invention in another state;

fig. 3 is a schematic bottom view of a vehicle bogie cross support bar handling device according to an embodiment of the present invention in one state;

fig. 4 is a schematic structural view of a self-locking handle of a cross bar in a state where a locking prevention portion of an embodiment of the present invention is provided;

fig. 5 is a schematic structural view of the self-locking handle according to another state in which the anti-separation portion of the embodiment of the present invention is a cross bar;

fig. 6 is a schematic structural view of a state in which the locking prevention portion of the embodiment of the present invention is a self-locking handle of a vertical extension bar;

FIG. 7 is a schematic block diagram of a connector according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a suspension ring according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a double linkage spreader according to an embodiment of the present invention.

Description of the main elements of the drawings:

1-a hanging ring, 11-a notched ring, 12-a first hanging plate, 121-a second screw hole, 13-a second hanging plate, 131-a second round hole, 14-a second inserted rod, 141-a second limiting head and 142-a second screw rod;

2-connecting arm, 21-lifting hole;

3-suspension arm, 31-handle hole, 32-lock head column;

4-self-locking handle, 41-rotating rod, 42-L-shaped hook rod, 43-anti-falling part, 431-horizontal rod, 432-vertical rod and 4321-nut;

5-connecting piece, 51-first screw, 52-first thread sleeve, 53-first limiting head;

6-grip, 61-protective sheath;

7-linkage assembly, 71-middle rod, 72-first connecting rod, 73-second connecting rod, 74-middle plate;

8-a downward pressing adjusting mechanism, 81-a threaded pipe, 82-a screw rod, 83-a holding sleeve and 84-a pressing plate;

9-middle lifting ring, 91-ring frame.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up, and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down;

in the drawings, the X-axis represents the longitudinal direction of the horizontal plane, perpendicular to the Z-axis, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) represents the front side, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear side;

in the drawings, Y represents a horizontal direction, while being perpendicular to the Z-axis and the X-axis, and a positive direction of the Y-axis (i.e., an arrow direction of the Y-axis) represents a left side, and a negative direction of the Y-axis (i.e., a direction opposite to the positive direction of the Y-axis) represents a right side;

the plane formed by the X axis and the Z axis is a vertical plane.

It should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The terms "first", "second", etc. are presented for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 3, the present embodiment provides a lifting device for a cross support rod of a vehicle bogie, which includes a lifting ring 1, two connecting arms 2, two suspension arms 3 and a self-locking handle 4;

one ends of the two connecting arms 2 are movably connected together through a hanging ring 1, and one end of each connecting arm 2, which is far away from the hanging ring 1, is hinged with one end of one hanging arm 3;

the two suspension arms 3 are arranged in a crossed manner and hinged together, one end of each suspension arm 3, which is far away from the connecting arm 2, is provided with a clamping part 6, the clamping part 6 is in an arc shape, a handle hole 31 is arranged at one suspension arm 3, and a lock head column 32 is arranged at the corresponding position of the other suspension arm 3;

the self-locking handle 4 is movably connected in the handle hole 31 and is buckled at the lock head column 32 through the self-locking handle 4 to lock the two suspension arms 3.

Here, by movably connecting one end of two connecting arms 2 together through a hanging ring 1, one end of each connecting arm 2 far away from the hanging ring 1 is respectively hinged with one end of one suspension arm 3, the two suspension arms 3 are arranged in a crossed manner and hinged together, so that the two connecting arms 2 and the two suspension arms 3 form a parallelogram linkage mechanism, wherein the hanging ring 1 is connected at one corner point of the parallelogram linkage mechanism, and the two clamping parts 6 are connected at one corner point opposite to the hanging ring 1, the closing or opening of the two clamping parts 6 is realized through the motion characteristic of the parallelogram linkage mechanism.

Here, the lifting ring 1 is used for connecting lifting equipment, when the supporting rod is transferred, the lifting ring 1 is connected with the lifting equipment, the whole vehicle bogie cross supporting rod lifting device is in a state shown in figure 1 under the self gravity, at the moment, two clamping parts 6 are closed, then the self-locking handle 4 is rotated, the self-locking handle 4 is separated from the lock head column 32, the self-locking handle 4 is pulled outwards, the included angle between the adjacent connecting arm 2 and the suspension arm 3 is reduced, the two clamping parts 6 are opened (shown in figure 2), the vehicle bogie cross supporting rod lifting device is moved to the position right above the supporting rod through the lifting equipment, the vehicle bogie cross supporting rod lifting device is made to fall down, the two clamping parts 6 in the opened state are wrapped on the surface of the supporting rod, finally, the self-locking handle 4 is rotated, the self-locking handle 4 is buckled at the lock head column 32 to lock the two suspension arms 3, and then two clamping parts 6 accomplish to close and carry out the centre gripping to the bracing piece, and two davits 3 under the clamping part 6 closure state are locked the back, and two clamping parts 6 can not be opened because of the gravity of its inside bracing piece, and then the problem that the bracing piece dropped after having avoided the centre gripping.

Referring to fig. 2, describing a specific structure of the self-locking handle 4, preferably, the self-locking handle 4 includes a rotating rod 41, a coming-off preventing portion 43 and an L-shaped hook rod 42, the rotating rod 41 is movably connected in the handle hole 31, the coming-off preventing portion 43 is provided at a rear end of the rotating rod 41, the coming-off preventing portion 43 is used for limiting the rotating rod 41 to come off the handle hole 31 forward, the L-shaped hook rod 42 is provided at a front end of the rotating rod 41, and the two suspension arms 3 are locked by hooking the L-shaped hook rod 42 to the head cylinder 32.

Here, specifically, the L-shaped hook lever 2 is rotated to the lock cylinder 32, and the lock cylinder 32 is locked by the L-shaped hook lever 42.

Referring to fig. 3 to 5, in order to describe the specific connection manner of the rotating rod 41 and the handle hole 31, preferably, the rotating rod 41 is screwed with the handle hole 31, the inner wall of the handle hole 31 is provided with a first thread, the surface of the rotating rod 41 is provided with a second thread, the second thread is matched with the first thread, and the L-shaped hook rod 42 is hooked to lock the locking stud 32 when the anti-dropping portion 43 is abutted to the boom 3.

Here, the way that dwang 41 and handle hole 31 threaded connection guarantee that auto-lock handle 4 can not rotate by accident, this kind of connected mode, more specifically show that, when L shape hook pole 42 rotates to tapered end post 32, accomplish the lock to two davits 3 and die, auto-lock handle 4 can not keep away from tapered end post 32 under the condition of taking place by accident, finally leads to the bracing piece to drop because of self gravity from two clamping parts 6.

Referring to fig. 4 and 5, preferably, the coming-off preventing portion 43 is a transversal rod 431, and the transversal rod 431 is vertically disposed at the rear end of the rotating rod 41.

Here, the horizontal rod 431 may be integrally formed at the rear end of the rotating rod 41 by bending, that is, the horizontal rod 431 and the rotating rod 41 constitute an "L-shaped rod", in which case, the self-locking handle 4 is equivalent to two "L-shaped rods", that is, the "L-shaped rod" of the L-shaped hook rod 42 and the "L-shaped rod" of the horizontal rod 431 and the rotating rod 41 are vertically fixed to each other, in which case, the self-locking handle 4 is convenient to machine.

Referring to fig. 6, preferably, the retaining portion 43 is a vertical extending rod 432, the vertical extending rod 432 is coaxially disposed at the rear end of the rotating rod 41, the diameter of the vertical extending rod 432 is smaller than that of the rotating rod 41, a third thread is disposed on the surface of the vertical extending rod 432, a nut 4321 is connected to the third thread, and the diameter of the nut 4321 is larger than that of the rotating rod 41.

Here, by setting the diameter of the nut 4321 to be larger than the diameter of the rotating rod 41, when the nut 4321 abuts against the boom 3, the L-shaped hook rod 42 is buckled at the lock head column 32 to complete the locking of the two booms 3, in which case, the self-locking handle 4 is easily detached from the boom 3.

Referring to fig. 6, preferably, the nut 4321 is a dead-lock nut, which prevents the thread of the nut 4321 from loosening at the vertical rod 432, and thus the use effect is not affected.

Referring to fig. 2 to 5, the lock cylinder 32 is preferably screwed to the boom 3, so that the lock cylinder 32 can be easily detached from the boom 3 and the length of the lock cylinder 32 extending out of the boom 3 can be adjusted to be locked by the L-shaped hook 42.

Referring to fig. 7, specifically describing how the two booms 3 are hinged, and how the connecting arm 2 and the booms 3 are hinged, preferably, the vehicle bogie cross strut lifting device further comprises a plurality of connecting pieces 5, wherein the hinged parts of the two booms 3 are hinged together through the connecting pieces 5, and the hinged parts of the connecting arm 2 and the booms 3 are hinged together through the connecting pieces 5;

the connecting piece 5 comprises a first screw 51 and a first threaded sleeve 52, the ends of the first screw 51 and the first threaded sleeve 52 are respectively provided with a first limiting head 53, the first screw 51 is matched with the first threaded sleeve 52, the length of the first threaded sleeve 52 is equal to the sum of the thicknesses of the connecting arm 2 and the suspension arm 3, and the thickness of the suspension arm 3 is equal to the thickness of the connecting arm 2.

It should be noted that the length of the first threaded sleeve 52 refers to the X-coordinate direction in fig. 7, i.e., the front-rear direction of the vehicle bogie cross-strut crane.

Here, the first threaded sleeve 52 is inserted into a hole reserved on the connecting arm 2 and the suspension arm 3, and then the first screw 51 is connected to the deepest part of the first threaded sleeve 52, at this time, the distance between the two first limiting heads 53 is the length of the first threaded sleeve 52, meanwhile, the length of the first threaded sleeve 52 is equal to the sum of the thicknesses of the connecting arm 2 and the suspension arm 3, the thickness of the suspension arm 3 is equal to the thickness of the connecting arm 2, and a gap is not formed in the front-back direction after the connecting arm 2 is connected with the suspension arm 3 and after the suspension arm 3 is connected with the suspension arm 3.

Referring to fig. 8, making a specific description of how the hanging ring 1 is movably connected with the connecting arms 2, preferably, the ends of the two connecting arms 2 far away from the suspension arm 3 are respectively provided with a hanging hole 21, the hanging ring 1 includes a notched ring 11, notches of the notched ring 11 are respectively provided with a first hanging plate 12 and a second hanging plate 13, the first hanging plate 12 is provided with a second screw hole 121, the second hanging plate 13 is provided with a second round hole 131 corresponding to the second screw hole 121, a second insertion rod 14 is movably inserted in the second round hole 131, one end of the second insertion rod 14 is provided with a second limiting head 141, the other end of the second insertion rod is coaxially provided with a second screw 142, the diameter of the second screw 142 is smaller than that of the second insertion rod 14, so as to ensure that the second insertion rod 14 can be freely inserted into the second round hole 131, and the second screw 142 is matched with the second screw hole 121.

Here, when the hanging ring 1 is connected to the two connecting arms 2, the ends of the two connecting arms 2 with the hanging holes 21 are placed between the first hanging plate 12 and the second hanging plate 13, then the second inserting rod 14 is inserted into the second round hole 131 and sequentially introduced into the two hanging holes 21, and finally the second screw 412 is screwed into the second screw hole 121.

Referring to fig. 3 and 8, the first hanger plate 12 is preferably spaced apart from the second hanger plate 13 by a distance equal to the thickness of the two connecting arms 2.

Here, by setting the distance between the first hanger plate 12 and the second hanger plate 13 to the thickness of the two connecting arms 2, it is ensured that the two connecting arms 2 do not move between the first hanger plate 12 and the second hanger plate 13 along the axial direction of the second insert rod 14, thereby improving the stability of the support rod in the transfer process.

Referring to fig. 1, preferably, a side surface of each of the two clamping portions 6 opposite to each other is wrapped with a protective sleeve 61, so that the clamping portions 6 do not cause damage such as abrasion to the supporting rod when clamping the supporting rod.

Referring to fig. 9, another embodiment provides a dual linkage spreader comprising the two vehicle bogie cross support bar handling apparatus and linkage assembly 7 described above;

the linkage assembly 7 connects the two vehicle bogie cross support rod lifting devices, and enables the clamping parts 6 of the two vehicle bogie cross support rod lifting devices to be synchronously closed or opened;

the two parts of the supporting rod can be additionally held by the two linked lifting devices for the crossed supporting rods of the two vehicle bogies, so that the supporting rod is more stably clamped, and even a very long rod-shaped object can still be stably held by the lifting devices for the crossed supporting rods of the two vehicle bogies;

here, the linkage assembly 7 comprises a first connecting rod 72 and a second connecting rod 73, the connecting arm 2 between the two bogie cross support rod lifting devices is fixedly connected with the connecting arm 2 through the first connecting rod 72, and the suspension arm 3 between the two bogie cross support rod lifting devices is fixedly connected with the suspension arm 3 through the second connecting rod 73;

preferably, the linkage assembly 7 further comprises an intermediate rod 71, the intermediate rod 71 is fixedly connected between the two lifting rings 1, an intermediate plate 74 is formed in the middle of the intermediate rod 71, a ring frame 91 is fixed to the top of the intermediate rod 71, and a middle lifting ring 9 is fixed to the top of the ring frame 91;

here, the balance of the double-linkage lifting appliance is ensured by connecting the middle lifting ring 9 with external lifting equipment;

preferably, the dual-linkage hanger further comprises a pressing adjusting mechanism 8, the pressing adjusting mechanism 8 comprises a threaded pipe 81, a lead screw 82 and a pressing plate 84, the threaded pipe 81 is rotatably connected to the middle plate 74, one end of the lead screw 82 is connected to the threaded pipe 81 in a threaded manner, and one end of the lead screw 82 extending out of the threaded pipe 81 is rotatably connected to the pressing plate 84;

here, the dual linkage spreader can clamp a rod-shaped object with a smaller diameter by pressing down the adjusting mechanism 8, and the principle is as follows: clamping a small-diameter rod-shaped object by using two vehicle bogie cross support rod lifting devices, locking a lifting arm 3 by using a self-locking handle 4 to keep the small-diameter rod-shaped object between closed clamping parts 6, and then screwing a screw rod 82 to drive a pressing plate 84 to descend until the small-diameter rod-shaped object is pressed tightly, so as to fix the small-diameter rod-shaped object;

it should be noted that the diameter of the small-diameter rod-shaped article mentioned here is smaller than the inner diameter of the circle formed by the closed two clamping portions 6.

Preferably, a grip 83 is fixed at the position where the screw rod 82 extends out of the threaded tube 81, so that the screw rod 82 can be conveniently screwed without hurting hands.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, which will fall into the scope of the present disclosure.

Claims (10)

1. A lifting device for a cross supporting rod of a vehicle bogie is characterized by comprising a lifting ring (1), two connecting arms (2), two lifting arms (3) and a self-locking handle (4);

one ends of the two connecting arms (2) are movably connected together through the hanging ring (1), and one end of each connecting arm (2) far away from the hanging ring (1) is hinged with one end of one suspension arm (3) respectively;

the two suspension arms (3) are arranged in a crossed mode and hinged together, one end, far away from the connecting arm (2), of each suspension arm (3) is provided with a clamping portion (6), the clamping portion (6) is in an arc shape, a handle hole (31) is formed in one suspension arm (3), and a lock head column (32) is arranged in the corresponding position of the other suspension arm (3);

the self-locking handle (4) is movably connected in the handle hole (31), and the two suspension arms (3) are locked by buckling the self-locking handle (4) on the lock head column (32).

2. The vehicle bogie cross support bar handling apparatus according to claim 1, wherein the self-locking handle (4) comprises a rotating lever (41), a disengagement preventing portion (43) and an L-shaped hook bar (42), the rotating lever (41) is movably connected in the handle hole (31), the disengagement preventing portion (43) is provided at a rear end of the rotating lever (41), the disengagement preventing portion (43) is used to restrict the rotating lever (41) from being disengaged forward from the handle hole (31), the L-shaped hook bar (42) is provided at a front end of the rotating lever (41), and the L-shaped hook bar (42) is hooked to the locking stud (32) to lock the two suspension arms (3).

3. The cross support bar lifting apparatus for the vehicle bogie as recited in claim 2, wherein the rotation lever (41) is screw-coupled to the handle hole (31), the inner wall of the handle hole (31) is provided with a first screw, the surface of the rotation lever (41) is provided with a second screw, the second screw is engaged with the first screw, and the L-shaped hook lever (42) is hook-locked to the locking stud (32) when the coming-off preventing portion (43) is abutted to the suspension arm (3).

4. The vehicle bogie cross support bar trolley according to claim 2, wherein the trip preventing portion (43) is a traverse bar (431), and the traverse bar (431) is vertically provided at the rear end of the turning bar (41).

5. The vehicle bogie cross support rod lifting device according to claim 2, wherein the anti-falling part (43) is a vertical extension rod (432), the vertical extension rod (432) is coaxially arranged at the rear end of the rotating rod (41), the diameter of the vertical extension rod (432) is smaller than that of the rotating rod (41), a third thread is arranged on the surface of the vertical extension rod (432), a nut (4321) is connected onto the third thread, and the diameter of the nut (4321) is larger than that of the rotating rod (41).

6. The vehicle bogie cross support bar trolley device of claim 5 wherein said nut (4321) is a dead lock nut.

7. The vehicle bogie cross support bar handling device of claim 1, further comprising a plurality of connectors (5), wherein the joints of the two booms (3) are hinged together through the connectors (5), and the joints of the connecting arm (2) and the booms (3) are hinged together through the connectors (5);

the connecting piece (5) comprises a first screw rod (51) and a first threaded sleeve (52), the end parts of the first screw rod (51) and the first threaded sleeve (52) are respectively provided with a first limiting head (53), the first screw rod (51) is matched with the first threaded sleeve (52), the length of the first threaded sleeve (52) is equal to the sum of the thicknesses of the connecting arm (2) and the suspension arm (3), and the thickness of the suspension arm (3) is equal to the thickness of the connecting arm (2).

8. The vehicle bogie cross bracing rod hoisting device according to claim 1, wherein one end of each of the two connecting arms (2) far away from the suspension arm (3) is provided with a hoisting hole (21), the hoisting ring (1) comprises a notched ring (11), a notch of the notched ring (11) is provided with a first hoisting plate (12) and a second hoisting plate (13), the first hoisting plate (12) is provided with a second screw hole (121), the second hoisting plate (13) is provided with a second round hole (131) corresponding to the second screw hole (121), a second insert rod (14) is movably inserted in the second round hole (131), one end of the second insert rod (14) is provided with a second limiting head (141), the other end of the second insert rod (14) is coaxially provided with a second screw rod (142), and the diameter of the second screw rod (142) is smaller than that of the second insert rod (14), the second screw (142) is matched with the second screw hole (121).

9. The vehicle bogie cross support bar trolley as recited in claim 8, characterised in that the distance between the first and second hanger plates (12, 13) is equal to the thickness of the two connecting arms (2).

10. A vehicle bogie cross support bar trolley as claimed in any one of claims 1 to 9 wherein the two clamps (6) are wrapped on opposite sides with a protective sleeve (61).

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