CN218453936U

CN218453936U - Vehicle body supporting device

Info

Publication number: CN218453936U
Application number: CN202222586981.5U
Authority: CN
Inventors: 王丽; 李伟伟
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-02-07
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to a vehicle body supporting device, which comprises a base, a walking mechanism, a lifting mechanism, a stand column and a vehicle body supporting mechanism; the vehicle body supporting mechanism comprises a supporting platform and a lifting assembly, the supporting platform is used for supporting a vehicle body, and the lifting assembly is used for driving the supporting platform to lift; the travelling mechanism is used for the vehicle body supporting device to travel on the ground; the lifting mechanism is used for driving the travelling mechanism to switch between a fixed state and a translation state; in a fixed state, the lowest point of the walking mechanism is higher than or flush with the lower surface of the base so that the base can be supported on the ground; in the translation state, the walking mechanism protrudes downwards from the lower surface of the base and can be supported on the ground, and the base is separated from the ground. The utility model discloses automobile body strutting arrangement can conveniently switch fixed state and mobile state, removes convenient operation, and it is fixed firm to fall to the ground, and is more reliable, safe to the support of automobile body, maintains simply.

Description

Vehicle body supporting device

Technical Field

The utility model belongs to the technical field of support frock, a automobile body strutting arrangement is related to.

Background

With the development of society, rubber wheel rail trains are increasingly entering public fields of vision as a fashion mode of transportation. The bogie system is an important subsystem of the rubber wheel rail train, and the safety, the operation stability and the comfort of driving are directly influenced by the quality of the bogie system. In the face of increasingly modern, rich and three-dimensional transportation modes, users pay more and more attention to the safety of various transportation means. This also places more stringent requirements on routine maintenance of the vehicle.

Along with the development of science and technology, various novel technologies begin to be applied to the daily maintenance of rubber tyer rail train, for making the operation convenience, safety and hommization that the bogie system dimension protected more, the auxiliary device that overhauls of bogie system that a great deal of embedding track circuit used of coming. The auxiliary maintenance device for the bogie system can support a single bogie system and can perform lifting, translation and other actions, and the bogie system is transferred to a nearby maintenance area from a track line for maintenance. Before the bogie is disassembled and assembled, the bogie is supported by the vehicle body supporting device so that the bogie is not limited by the vehicle body during disassembly or assembly.

The existing vehicle body supporting device adopts a motor or a telescopic cylinder for lifting driving, although the efficiency is high, the adjustment precision and the flexibility of the vertical direction of the vehicle body supporting surface are insufficient for the translation base supporting surface with different heights, and the later maintenance is troublesome. In addition, the existing vehicle body supporting device mostly adopts a combination mode of a directional wheel and a universal wheel with a brake, and a vehicle body is supported by the directional wheel and the universal wheel, so that the stability of the whole vehicle body supporting device after positioning and bearing is insufficient.

Disclosure of Invention

The utility model aims to solve the technical problem that: the utility model provides a vehicle body strutting arrangement to current vehicle body strutting arrangement rely on directional wheel and universal wheel to support the automobile body, whole vehicle body strutting arrangement is not enough in the problem of the stability after the location bears, provides a vehicle body strutting arrangement.

In order to solve the technical problem, on one hand, the utility model provides a vehicle body supporting device, which comprises a base, a walking mechanism, a lifting mechanism, a stand column and a vehicle body supporting mechanism, wherein the lower end of the stand column is fixed on the base;

the vehicle body supporting mechanism comprises a supporting platform and a lifting assembly, the upper end of the lifting assembly is connected with the supporting platform, the lower end of the lifting assembly is connected with the upper end of the upright post, the supporting platform is used for supporting a vehicle body, and the lifting assembly is used for driving the supporting platform to lift;

the running mechanism is connected to the base and used for the vehicle body supporting device to run on the ground;

the lifting mechanism is connected with the travelling mechanism and is used for driving the travelling mechanism to switch between a fixed state and a translation state;

in the fixed state, the lowest point of the walking mechanism is higher than or flush with the lower surface of the base, so that the base can be supported on the ground; in the translation state, the travelling mechanism downwards protrudes out of the lower surface of the base and can be supported on the ground, and the base is separated from the ground.

Optionally, the traveling mechanism includes a universal wheel assembly, a connecting rod assembly and an orientation wheel, the bottom of the base has a cavity, the connecting rod assembly and the orientation wheel are located in the cavity, the universal wheel assembly is located outside the base, and the universal wheel assembly and the orientation wheel are located on the front side and the rear side of the base; the connecting rod assembly is connected between the universal wheel assembly and the directional wheel;

the universal wheel assembly comprises a caster wheel and a wheel frame, the caster wheel is connected to the wheel frame, and the lifting mechanism is connected with the wheel frame to drive the universal wheel assembly to lift;

when the universal wheel assembly descends, the connecting rod assembly drives the directional wheel to descend; when the universal wheel component ascends, the connecting rod component drives the directional wheel to ascend.

Optionally, the wheel carrier comprises a transverse connecting plate, a vertical connecting shaft and a universal wheel shaft, the upper end of the vertical connecting shaft is rotatably connected to the transverse connecting plate, the universal wheel shaft is connected to the lower end of the vertical connecting shaft, and the caster wheel is rotatably connected to one end of the universal wheel shaft;

one end of the connecting rod assembly is connected with the transverse connecting plate, and the lifting mechanism is connected with the transverse connecting plate.

Optionally, the number of the caster wheels is two, the two caster wheels are perpendicularly connected to two ends of the universal wheel shaft, and the vertical connecting shaft is perpendicularly connected to the middle of the universal wheel shaft and located between the two caster wheels.

Optionally, the connecting rod assembly comprises a first connecting rod, an intermediate connecting rod and a second connecting rod, a first end of the first connecting rod is hinged to the transverse connecting plate, a second end of the first connecting rod is hinged to a first end of the intermediate connecting rod, a second end of the intermediate connecting rod is hinged to a first end of the second connecting rod, and a second end of the second connecting rod is hinged to the axle of the orienting wheel;

the middle part of the first connecting rod is hinged with the base, and the middle part of the second connecting rod is hinged with the base.

Optionally, the first link comprises a first long arm and a first short arm connected to form an L-shaped structure, the first short arm is located below the first long arm, the second link comprises a second long arm and a second short arm connected to form an L-shaped structure, and the second short arm is located above the second long arm; the middle connecting rod is a straight rod, and the first end of the middle connecting rod is lower than the second end of the middle connecting rod;

the first long arm is hinged with the transverse connecting plate, the first short arm is hinged with the first end of the middle connecting rod, the second long arm is hinged with the wheel axle of the directional wheel, and the second short arm is hinged with the second end of the middle connecting rod.

Optionally, the connecting rod assembly is provided with two connecting rod assemblies, the number of the directional wheels is two, the two directional wheels are coaxially arranged, and the two directional wheels and the caster wheel are arranged in a triangular shape;

the first end of the first connecting rod of one of the connecting rod assemblies is hinged with one side of the transverse connecting plate, and the first end of the first connecting rod of the other connecting rod assembly is hinged with the other side of the transverse connecting plate.

Optionally, the lifting mechanism is a hydraulic handle lifting mechanism;

the hydraulic handle lifting mechanism comprises a handle and a hydraulic cylinder, and a cylinder body of the hydraulic cylinder is fixed on the base; in the fixed state, the handle is operated to enable a piston rod of the hydraulic cylinder to extend downwards so as to drive the travelling mechanism to descend;

and a release switch is arranged on the handle, and in the translation state, the release switch is operated to enable a piston rod of the hydraulic cylinder to retract upwards so as to drive the travelling mechanism to ascend.

Optionally, the vehicle body supporting device further comprises an ascending ladder disposed on at least one side of the base, and the bottom of the ascending ladder is fixed to the base.

Optionally, a plurality of handrails with different heights are arranged on two sides of the upright column, and the handrails are located above the ascending ladder.

Optionally, both sides of the base are provided with the ascending ladders, and the tops of the two ascending ladders are connected through a cross beam.

Optionally, the vehicle body supporting device further comprises a reinforcing beam, an upper end of the reinforcing beam is fixed on the upright, and a lower end of the reinforcing beam is fixed on the base.

Optionally, the supporting platform comprises a lining plate, a sensor connecting plate, a load sensor and a supporting plate which are stacked from top to bottom;

the load sensor is provided with a display to display the load borne by the vehicle body supporting device.

Optionally, the lifting assembly comprises a hand wheel, a nut supporting plate, a screw, an anti-rotation sleeve and an anti-rotation block, the nut is in threaded connection with the outer portion of the screw, the hand wheel is fixed to the outer portion of the nut, a top plate is arranged at the upper end of the upright column, the nut supporting plate is fixed to the top plate and supports the nut, and the upper end of the screw is connected with the supporting platform;

the anti-rotation support is characterized in that a center hole is formed in the top plate, the anti-rotation sleeve is fixed in the center hole of the top plate and extends downwards into the stand column, the anti-rotation block is fixed on the lower end face of the screw rod and can be connected in the anti-rotation sleeve in an up-and-down sliding mode, the anti-rotation sleeve limits circumferential rotation of the anti-rotation block, and therefore when the hand wheel rotates, the screw rod can move up and down to drive the supporting platform to lift.

According to the utility model discloses automobile body strutting arrangement, elevating system can drive running gear and switch between fixed state and translation state. In the translation state, the travelling mechanism downwards protrudes out of the lower surface of the base and can be supported on the ground, and the base is separated from the ground. At this point, the body support apparatus may be moved such that the support platform is moved to a position below the appropriate location of the body support area of the rail vehicle. Then, operating elevating system and driving running gear and rising for running gear's minimum point is higher than or the parallel and level in the lower surface of base, and the base relies on the dead weight to fall and with ground contact, because the area of contact of the lower surface of base and ground is great, but the base balance falls to the ground to contact well with ground, be difficult for removing, realized automobile body strutting arrangement's location. Then, operating the lifting component to drive the supporting platform to ascend, supporting the supporting platform at a proper position of a vehicle body supporting area of the railway vehicle, and then carrying out the dismounting and overhauling work of the bogie. After the maintenance is finished, the bogie is reinstalled on the vehicle body, and the lifting assembly is operated to drive the supporting platform to descend and be far away from the vehicle body until the distance from the vehicle body to the vertical direction is reached. And then, operating the lifting mechanism to drive the travelling mechanism to descend, wherein the travelling mechanism protrudes downwards from the lower surface of the base and can be supported on the ground, and the base is separated from the ground. Then, the vehicle body supporting device is moved to a specified placing area, the lifting mechanism is operated to drive the traveling mechanism to ascend, and the base is placed on the ground of the placing area.

It is visible, the utility model discloses the automobile body strutting arrangement can conveniently switch fixed state and mobile state, removes convenient operation, and it is fixed firm to fall to the ground, and is more reliable, safe to the support of automobile body, maintains simply.

Drawings

Fig. 1 is a perspective view of a vehicle body supporting device according to an embodiment of the present invention;

fig. 2 is a side view (partially cut away) of the supporting device for vehicle body according to an embodiment of the present invention;

FIG. 3 is another side view (partially in section) of the vehicle body support apparatus provided by an embodiment of the present invention;

FIG. 4 is an enlarged view taken at a in FIG. 2;

FIG. 5 is an enlarged view at b in FIG. 3;

fig. 6 is a schematic view illustrating a traveling mechanism of the vehicle body supporting device according to an embodiment of the present invention in a translation state;

fig. 7 is a schematic view illustrating a traveling mechanism of a vehicle body supporting device according to an embodiment of the present invention in a fixed state.

The reference numerals in the specification are as follows:

1. a base; 11. a cavity; 2. a traveling mechanism; 21. a universal wheel assembly; 211. a caster wheel; 212. a wheel carrier; 2121. a transverse connecting plate; 2122. a vertical connecting shaft; 22. a connecting rod assembly; 221. a first link; 2211. a first long arm; 2212. a first short arm; 222. a middle connecting rod; 223. a second link; 2231. a second long arm; 2232. a second short arm; 23. a directional wheel; 3. a lifting mechanism; 31. a handle; 32. a hydraulic cylinder; 33. a release switch; 4. a column; 41. a top plate; 5. a vehicle body support mechanism; 51. a support platform; 511. a liner plate; 512. a sensor connecting plate; 513. a load sensor; 514. a support plate; 52. a lifting assembly; 521. a hand wheel; 522. a nut; 523. a nut support plate; 524. a screw; 525. the anti-rotation sleeve; 526. a rotation prevention block; 527. a gasket; 6. a first pin shaft; 7. a second pin shaft; 8. ascending a ladder; 9. a handrail; 10. a cross beam; 20. and reinforcing the beam.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Herein, the front-rear direction is a moving direction of the vehicle body supporting device.

Referring to fig. 1 to 7, the embodiment of the present invention provides a vehicle body supporting device, including base 1, running gear 2, lifting mechanism 3, stand 4 and vehicle body supporting mechanism 5, the lower extreme of stand 4 is fixed on base 1 through modes such as welding. The vehicle body supporting mechanism 5 comprises a supporting platform 51 and a lifting assembly 52, the upper end of the lifting assembly 52 is connected with the supporting platform 51, the lower end of the lifting assembly 52 is connected with the upper end of the upright post 4, the supporting platform 51 is used for supporting a vehicle body, and the lifting assembly 52 is used for driving the supporting platform 51 to lift; the traveling mechanism 2 is connected to the base 1 and used for the vehicle body supporting device to travel on the ground; the lifting mechanism 3 is connected with the travelling mechanism 2 and used for driving the travelling mechanism 2 to switch between a fixed state and a translation state. Referring to fig. 7, in the fixed state, the lowest point of the traveling mechanism 2 is higher than or flush with the lower surface of the base 1 so that the base 1 can be supported on the ground; referring to fig. 6, in the translation state, the traveling mechanism 2 protrudes downward from the lower surface of the base 1 and can be supported on the ground, and the base 1 is separated from the ground.

According to the utility model discloses automobile body strutting arrangement, elevating system 3 can drive running gear 2 and switch between fixed state and translation state. In the translational state, the traveling mechanism 2 protrudes downward from the lower surface of the base 1 and can be supported on the ground, and the base 1 is separated from the ground. At this time, the vehicle body supporting device may be moved such that the support platform 51 is moved to below a proper position of the vehicle body supporting area of the railway vehicle. Then, operating elevating system 3 and driving running gear 2 and rising for running gear 2's minimum point is higher than or the parallel and level in the lower surface of base 1, and base 1 relies on the dead weight to fall and with ground contact, because the area of contact of base 1's lower surface and ground is great, but base 1 balance falls to the ground to contact well with ground, difficult removal has realized automobile body strutting arrangement's location. Then, the lifting assembly 52 is operated to drive the supporting platform 51 to ascend, the supporting platform 51 is supported at a proper position of a vehicle body supporting area of the railway vehicle, and the bogie can be dismounted, mounted and overhauled at the moment. After the maintenance is completed and the bogie is reinstalled on the vehicle body, the lifting assembly 52 is operated to drive the supporting platform 51 to descend away from the vehicle body until the distance from the vehicle body in the vertical direction is reached. Then, the lifting mechanism 3 is operated to drive the travelling mechanism 2 to descend, and the travelling mechanism 2 protrudes downwards from the lower surface of the base 1 and can be supported on the ground, so that the base 1 is separated from the ground. Then, the vehicle body supporting device is moved to a specified placing area, the lifting mechanism 3 is operated to drive the travelling mechanism 2 to ascend, and the base 1 is placed on the ground of the placing area.

The lifting assembly 52 can provide an adjustment space for the up-down position of the vehicle body supporting device to adapt to vehicle bodies with different heights.

In one embodiment, the base 1 is a plate frame welded structure and is provided with corresponding hole sites.

In an embodiment, referring to fig. 6 and 7, the traveling mechanism 2 includes a universal wheel assembly 21, a connecting rod assembly 22 and an orientation wheel 23, the bottom of the base 1 has a cavity 11, the connecting rod assembly 22 and the orientation wheel 23 are located in the cavity 11, the universal wheel assembly 21 is located outside the base 1, and the universal wheel assembly 21 and the orientation wheel 23 are located on the front and rear sides of the base 1; the connecting rod assembly 22 is connected between the universal wheel assembly 21 and the orientation wheel 23; the universal wheel assembly 21 comprises a caster wheel 211 and a wheel frame 212, the caster wheel 211 is connected to the wheel frame 212, and the lifting mechanism 3 is connected to the wheel frame 212 to drive the universal wheel assembly 21 to lift; when the universal wheel assembly 21 descends, the connecting rod assembly 22 drives the directional wheel 23 to descend; when the universal wheel assembly 21 ascends, the connecting rod assembly 22 drives the directional wheel 23 to ascend. That is, the universal wheel assembly 21 is lifted and lowered synchronously with the directional wheel 23 by the link assembly 22.

In an embodiment, referring to fig. 1, 6 to 7, the wheel frame 212 includes a transverse connecting plate 2121, a vertical connecting shaft 2122, and a universal wheel shaft, an upper end of the vertical connecting shaft 2122 is rotatably connected to the transverse connecting plate 2121, the universal wheel shaft is connected to a lower end of the vertical connecting shaft 2122, and the caster wheel 211 is rotatably connected to one end of the universal wheel shaft; one end of the connecting rod assembly 22 is connected to the transverse connecting plate 2121, and the lifting mechanism 3 is connected to the transverse connecting plate 2121.

In one embodiment, referring to fig. 1, the caster wheels 211 are provided with two caster wheels 211, two caster wheels 211 are vertically connected to two ends of the universal wheel shaft, and the vertical connecting shaft 2122 is vertically connected to a middle position of the universal wheel shaft and located between the two caster wheels 211. The universal wheel assembly is provided with two trundles 211, so that the universal wheel assembly is more stable when walking on the ground.

In one embodiment, referring to fig. 6 and 7, the link assembly 22 includes a first link 221, an intermediate link 222 and a second link 223, a first end of the first link 221 is hinged to the transverse connecting plate 2121, a second end of the first link 221 is hinged to a first end of the intermediate link 222, a second end of the intermediate link 222 is hinged to a first end of the second link 223, and a second end of the second link 223 is hinged to the axle of the directional wheel 23; the middle part of the first connecting rod 221 is hinged to the base 19 through a first pin 6, and the middle part of the second connecting rod 223 is hinged to the base 7 through a second pin 7.

In one embodiment, referring to fig. 6 and 7, the first link 221 includes a first long arm 2211 and a first short arm 2212 connected to form an L-shaped structure, the first short arm 2212 is located below the first long arm 2211, the second link 223 includes a second long arm 2231 and a second short arm 2232 connected to form an L-shaped structure, and the second short arm 2232 is located above the second long arm 2231; the middle connecting rod 222 is a straight rod, and a first end of the middle connecting rod 222 is lower than a second end of the middle connecting rod 222. The first long arm 2211 is hinged with the transverse connecting plate 2121, the first short arm 2212 is hinged with the first end of the middle connecting rod 222, the second long arm 2231 is hinged with the axle of the directional wheel 23, and the second short arm 2232 is hinged with the second end of the middle connecting rod 222.

In an embodiment, there are two connecting rod assemblies 22, two connecting rod assemblies 22 are arranged in parallel, two orientation wheels 23 are arranged coaxially, and two orientation wheels 23 and the caster 211 are arranged in a triangle; the first end of the first link 221 of one of the link assemblies 22 is hinged to one side of the transverse connecting plate 2121, and the first end of the first link 221 of the other link assembly 22 is hinged to the other side of the transverse connecting plate 2121. Two directional wheels 23 with truckle 211 is triangle-shaped and arranges, is favorable to running gear 2's stability, avoids turning on one's side.

In one embodiment, referring to fig. 1 to 3, the lifting mechanism 3 is a hydraulic handle lifting mechanism; the hydraulic handle lifting mechanism comprises a handle 31 and a hydraulic cylinder 32, the cylinder body of the hydraulic cylinder 32 is fixed on the base 1, and the piston rod of the hydraulic cylinder 32 is connected with the transverse connecting plate 2121, so that the transverse connecting plate 2121 can be lifted through the telescopic motion of the piston rod of the hydraulic cylinder 32, and the universal wheel assembly 21 is lifted; in the fixed state, the piston rod of the hydraulic cylinder 32 can be extended downwards by operating the handle 31 (repeatedly pressing the handle 31 downwards) so as to drive the universal wheel assembly 21 of the travelling mechanism 2 to descend; a release switch 33 is disposed on the handle 31, and in the translation state, the release switch 33 is operated (for example, the release switch 33 is toggled), so that the piston rod of the hydraulic cylinder 32 can be retracted upwards to drive the universal wheel assembly 21 of the traveling mechanism 2 to ascend.

In an embodiment, referring to fig. 1, the vehicle body supporting device further includes ascending ladders 8 disposed at both sides of the base 1, and the bottoms of the ascending ladders 8 are fixed to the base 1 by bolts. Of course, in other embodiments, the ascending ladder 8 may be provided on only one side of the base 1. The ascending ladder 8 can adopt a steel section bar welding structure, and the ascending ladder 8 can adopt a plurality of steps, such as four steps. Preferably, the ascending ladders 8 are arranged on two sides of the base 1, and the tops of the ascending ladders 8 are connected through a cross beam 10. Therefore, the two ascending ladders 8, the cross beam 10 and the base 1 form a frame structure, the assembly is convenient and flexible, and the structure is firm and reliable. The arrangement of the ascending ladder 8 can be operated by maintainers with different heights and can also adapt to different operable heights of the supporting positions of the vehicle body within a certain range.

In one embodiment, referring to fig. 1, the upright 4 is provided with a plurality of handrails 9 (6 in fig. 1, 3 on each side) at different heights on both sides, and the handrails 9 are located above the ascending ladder 8. The setting of handrail 9 makes things convenient for the maintainer who stands on the ladder 8 of ascending a height to grip, and the guarantee safety of ascending a height. The handrail 9 can adopt a cylindrical structure, and has good holding hand feeling. The auxiliary structures of the ascending ladder 8, the handrail 9 and the like facilitate manual operation so as to ensure efficient maintenance.

In one embodiment, referring to fig. 1, the vehicle body supporting device further includes a reinforcing beam 20, an upper end of the reinforcing beam 20 is fixed to the pillar 4 by welding, and a lower end of the reinforcing beam 20 is fixed to the base 1 by welding. Preferably, two reinforcing beams 20 are provided, and the two reinforcing beams 20 support the column 4 from both sides of the column 4, thereby enhancing the stability of the column 4.

In an embodiment, referring to fig. 3 and 4, the supporting platform 51 includes a lining plate 511, a sensor connecting plate 512, a load sensor 513 and a supporting plate 514, which are stacked from top to bottom; the load sensor 513 is provided with a display to display the load borne by the vehicle body supporting device. The lining plate 511 is a non-metal lining plate, and the lining plate 511 is connected with the sensor connecting plate 512 by using screws. Because the lining plate 511 is in direct contact with the vehicle body, preferably, the lining plate 511 is made of a composite material plate, so that the lining plate 511 is prevented from scratching the surface of the vehicle body. The load sensor 513 is connected with the sensor connecting plate 512 above the load sensor by screws. The load is loaded on the load sensor 513 through the lining plate 511 and the sensor connecting plate 512, and the load sensor 513 is provided with a display, so that the actual supporting load can be dynamically fed back to the display, and a maintainer can adjust the supporting height to be in a proper range in time.

The load sensor 513 who sets up has load feedback, and load sensor 513 is from taking the display, and it is even to make things convenient for the timely adjustment of maintainer to bear as man-machine communication window, and protection device itself avoids damaging simultaneously.

In an embodiment, referring to fig. 3 and 4, the lifting assembly 52 includes a hand wheel 521, a nut 522, a nut support plate 523, a screw 524, an anti-rotation sleeve 525 and an anti-rotation block 526, the nut 522 is screwed to the outside of the screw 524, the hand wheel 521 is fixed to the outside of the nut 522 by welding or bonding, the top plate 41 is disposed at the upper end of the upright column 4, the nut support plate 523 is fixed to the top plate 41 by welding or the like and supports the nut 522, and the upper end of the screw 524 is connected to the support plate 514 of the support platform 51; be provided with the centre bore on the roof 41, the ways such as welding or pressure equipment are fixed to the anti-rotation cover 525 in the centre bore of roof 41 and stretch into downwards the inside of stand 4, prevent that commentaries on classics piece 526 is fixed through the fix with screw on the lower terminal surface of screw rod 524, prevent that commentaries on classics piece 526 connects with sliding from top to bottom in the anti-rotation cover 525, the restriction of anti-rotation cover 525 prevent the rotation of commentaries on classics piece 526's circumferential direction, so that when hand wheel 521 was rotatory, screw rod 524 can the up-and-down motion in order to drive supporting platform 51 goes up and down. The cross-sectional shape of the anti-rotation block 526 is the same as the cross-sectional shape of the inner bore of the anti-rotation sleeve 525, and in order to restrict the rotation of the anti-rotation block 526, the cross-sectional shape of the anti-rotation block 526 and the cross-sectional shape of the inner bore of the anti-rotation sleeve 525 are both non-circular.

Through the cooperation of the anti-rotation block 526 and the anti-rotation sleeve 525, the rotary motion of the nut 522 is converted into the linear motion of the screw 524 in the vertical direction, so that an adjustable stroke is provided for the lifting position of the supporting platform 51 to adapt to vehicle bodies with different heights.

In an embodiment, referring to fig. 3 and 4, a gasket 527 may be further disposed between the nut supporting plate 523 and the nut 522. The washer 527 may reduce direct contact between the nut support plate 523 and the nut 522, reducing wear of the nut support plate 523 and the nut 522.

The vehicle body supporting device of the above embodiment operates in the following principle;

the four vehicle body supporting devices are arranged in each group, correspond to four supporting points arranged on each section of vehicle, and are respectively arranged on two sides of the vehicle body. In the translated state, the body support may be moved such that the support platform 51 is moved to a position below the body support area of the rail vehicle. The release switch 33 is operated to enable the piston rod of the hydraulic cylinder 32 to retract upwards so as to drive the universal wheel assembly 21 of the travelling mechanism 2 to ascend, the universal wheel assembly 21 drives the directional wheel 23 to ascend synchronously through the connecting rod assembly 22, when the universal wheel assembly 21 and the directional wheel 23 are higher than or flush with the lower surface of the base 1, the base 1 falls down by means of self weight and is in contact with the ground, and the base 1 can fall to the ground in a balanced manner due to the fact that the contact area of the lower surface of the base 1 and the ground is large, is in good contact with the ground, is not easy to move, and achieves positioning of the vehicle body supporting device.

Then, the hand wheel 521 is rotated clockwise, the hand wheel 521 drives the nut 522 to rotate, so that the screw 524 can only move upwards along the anti-rotation sleeve 525 under the circumferential limiting of the anti-rotation block 526, the supporting platform 51 is driven to ascend, the lining plate 511 of the supporting platform 51 is supported at a proper position of a vehicle body supporting area of the railway vehicle, and at the moment, the dismounting and the overhauling work of the bogie can be carried out.

After the overhaul is finished, after the bogie is remounted on the vehicle body, the hand wheel 521 is rotated anticlockwise, the hand wheel 521 drives the nut 522 to rotate, so that the screw 524 can only move downwards along the anti-rotating sleeve 525 under the circumferential limiting of the anti-rotating block 526, and the supporting platform 51 is driven to descend until the distance from the vehicle body to be removed in the vertical direction is obtained. Then, the handle 31 is repeatedly pressed, so that the piston rod of the hydraulic cylinder 32 extends downwards to drive the universal wheel assembly 21 of the traveling mechanism 2 to descend, the universal wheel assembly 21 drives the directional wheel 23 to descend synchronously through the connecting rod assembly 22, and when the universal wheel assembly 21 and the directional wheel 23 protrude downwards from the lower surface of the base 1 and can be supported on the ground, the base 1 is separated from the ground.

Then, the vehicle body supporting device is moved to a specified placing area, the lifting mechanism 3 is operated to drive the travelling mechanism 2 to ascend, and the base 1 is placed on the ground of the placing area. In the same way, 4 car body supporting devices are operated, and the 4 car body supporting devices can be stably placed on the specified area of the ground.

The vehicle body supporting device is not only suitable for rail vehicles, but also suitable for supporting other vehicles.

In the above embodiment, the lifting of the supporting platform 51 is realized by manually rotating the hand wheel 521, and the supporting platform 51 has flexible height adjustment and high accuracy.

In the above embodiment, the lifting mechanism 3 is a hydraulic handle lifting mechanism. The hydraulic handle lifting mechanism is of a conventional structure and is generally applied to the field of forklifts. However, the lifting mechanism 3 may be a pneumatic handle lifting mechanism which is opposite to the hydraulic handle lifting mechanism and only changes the medium from liquid to gas.

Of course, in other embodiments, the lifting mechanism 3 may also directly adopt an electrically controlled lifting mechanism, such as an electrically controlled hydraulic cylinder, an electrically controlled pneumatic cylinder, or a servo electric cylinder.

Of course, in other embodiments, the lead screw nut drive may also employ rack and pinion, sprocket chain, or the like.

In the above embodiment, the lifting unit 52 of the vehicle body supporting mechanism 5 is of a screw nut structure. However, the lift assembly 52 may also employ a conventional hydraulic or pneumatic handle lift mechanism.

Of course, in other embodiments, the lifting assembly 52 may also be directly electrically controlled, such as an electrically controlled hydraulic cylinder, an electrically controlled pneumatic cylinder, or a servo electric cylinder.

In the above embodiment, the traveling mechanism 2 employs a combination of the universal wheel assembly 21 and the directional wheel 23.

Of course, in other embodiments, the running gear 2 may also be a track wheel, a sprocket, or the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A vehicle body supporting device is characterized by comprising a base, a traveling mechanism, a lifting mechanism, an upright post and a vehicle body supporting mechanism, wherein the lower end of the upright post is fixed on the base;

in the fixed state, the lowest point of the walking mechanism is higher than or flush with the lower surface of the base, so that the base can be supported on the ground; in the translation state, the travelling mechanism protrudes downwards from the lower surface of the base and can be supported on the ground, and the base is separated from the ground.

2. The vehicle body supporting device according to claim 1, wherein the traveling mechanism comprises a universal wheel assembly, a connecting rod assembly and an orientation wheel, the bottom of the base is provided with a cavity, the connecting rod assembly and the orientation wheel are located in the cavity, the universal wheel assembly is located outside the base, and the universal wheel assembly and the orientation wheel are located on the front side and the rear side of the base; the connecting rod assembly is connected between the universal wheel assembly and the directional wheel;

the universal wheel assembly comprises a caster and a wheel frame, the caster is connected to the wheel frame, and the lifting mechanism is connected with the wheel frame so as to drive the universal wheel assembly to lift;

3. The vehicle body supporting device according to claim 2, wherein the wheel carrier comprises a transverse connecting plate, a vertical connecting shaft and a universal wheel shaft, the upper end of the vertical connecting shaft is rotatably connected to the transverse connecting plate, the universal wheel shaft is connected to the lower end of the vertical connecting shaft, and the caster wheel is rotatably connected to one end of the universal wheel shaft;

4. The vehicle body supporting device according to claim 3, wherein there are two caster wheels, two caster wheels are perpendicularly connected to both ends of the universal wheel shaft, and the vertical connecting shaft is perpendicularly connected to a middle position of the universal wheel shaft and located between the two caster wheels.

5. The vehicle body support apparatus of claim 3, wherein the linkage assembly includes a first link, an intermediate link, and a second link, a first end of the first link being hinged to the transverse connecting plate, a second end of the first link being hinged to a first end of the intermediate link, a second end of the intermediate link being hinged to a first end of the second link, a second end of the second link being hinged to the axle of the directional wheel;

6. The vehicle body support apparatus of claim 5, wherein the first link includes a first long arm and a first short arm connected to form an L-shaped structure, the first short arm being located below the first long arm, the second link includes a second long arm and a second short arm connected to form an L-shaped structure, the second short arm being located above the second long arm; the middle connecting rod is a straight rod, and the first end of the middle connecting rod is lower than the second end of the middle connecting rod;

7. The vehicle body support device according to claim 5, wherein there are two link assemblies, two orientation wheels are provided, the two orientation wheels are coaxially provided, and the two orientation wheels and the caster wheel are arranged in a triangle;

8. The vehicle body support apparatus of claim 1, wherein the lift mechanism is a hydraulic handle lift mechanism;

9. The vehicle body support device of claim 1, further comprising an ascending ladder disposed on at least one side of the base, a bottom of the ascending ladder being fixed to the base.

10. The vehicle body support device according to claim 9, wherein a plurality of handrails having different heights are provided on both sides of the pillar, and the handrails are located above the ascending ladder.

11. The vehicle body supporting device according to claim 9, wherein the ascending ladders are arranged on two sides of the base, and the tops of the two ascending ladders are connected through a cross beam.

12. The vehicle body support device of claim 1, further comprising a reinforcement beam, an upper end of the reinforcement beam being fixed to the pillar and a lower end of the reinforcement beam being fixed to the base.

13. The vehicle body supporting device according to claim 1, wherein the supporting platform comprises a lining plate, a sensor connecting plate, a load sensor and a supporting plate which are arranged in a stacked manner from top to bottom;

14. The vehicle body supporting device according to claim 1, wherein the lifting assembly comprises a hand wheel, a nut supporting plate, a screw rod, an anti-rotation sleeve and an anti-rotation block, the nut is in threaded connection with the outside of the screw rod, the hand wheel is fixed on the outside of the nut, a top plate is arranged at the upper end of the upright column, the nut supporting plate is fixed on the top plate and supports the nut, and the upper end of the screw rod is connected with the supporting platform;