Bearing equipment for assembling and transferring rear axle assembly of new energy automobile

Abstract

The utility model relates to the field of clamping of automobile parts, and discloses a bearing device for assembling a rear axle assembly of a new energy automobile, which comprises a bottom frame, a positioning group for supporting and positioning the rear axle assembly is movably arranged on the bottom frame, and a locking part for locking the positioning group is further arranged on the bottom frame. By arranging the positioning group, the rear axle assembly can be supported from a plurality of positions, so that debugging and detection of the rear axle assembly are facilitated, the position can be movably adjusted through the movably arranged positioning group, adaptive adjustment can be performed according to the rear axle assemblies of different sizes, and the rear axle assemblies of different sizes and shapes can be supported and positioned; and the locking part can lock the positioning group after the position is adjusted, so that the positioning group is prevented from moving in the supporting process, and the supporting stability of the rear axle assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts clamping, and in particular to a support device for assembling and supporting the rear axle assembly of a new energy vehicle. Background Technology

[0002] The rear axle assembly is a component of the rear drive shaft that transmits power in a car. It consists of two half-axles, enabling differential movement between them. It also supports the wheels and connects them to the rear wheels. Power is transmitted from the engine to the transmission, and then to the rear axle. Through a series of coordinated actions on the rear axle assembly, the car's driving performance and maneuverability during cornering are improved.

[0003] Therefore, the performance of the rear axle assembly is particularly important. Before being put into use, the rear axle assembly needs to be tested and adjusted. This requires transferring the rear axle assembly to a support device for testing until all test parameters meet the requirements. However, existing rear axle assemblies have complex structures, and different vehicle models and usage locations result in variations in their shape and size. Traditional support devices are typically specialized and can only support one type of rear axle assembly. When supporting rear axle assemblies of other shapes and sizes, separate support devices must be designed and manufactured, significantly increasing costs. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a support device for the rear axle assembly of new energy vehicles to solve the problem of poor applicability of existing support devices.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a support device for assembling a rear axle assembly of a new energy vehicle, including a base frame, on which a positioning group for supporting and positioning the rear axle assembly is movably arranged, and a locking part for locking the positioning group is also provided on the base frame.

[0006] Furthermore, the positioning group includes a plurality of first positioning parts disposed on the top surface of the chassis, each of the first positioning parts being retractably disposed corresponding to a hole-like structure on the rear axle assembly.

[0007] Furthermore, each of the first positioning parts includes a height-adjustable telescopic rod connected to the top surface of the chassis and distributed vertically, and a rubber post fixedly connected to the top of the telescopic rod for insertion into a perforated structure on the rear axle assembly.

[0008] Furthermore, the rubber column includes a support platform fixedly connected to the top of the telescopic rod for supporting the rear axle assembly, and a rubber rod coaxially connected to the support platform for inserting into the hole-like structure of the rear axle assembly.

[0009] Furthermore, the positioning group also includes a second positioning part disposed on the underframe and located inside each of the first positioning parts, the top surface of the second positioning part having a limiting groove for the bottom of the rear axle assembly to be engaged therein.

[0010] Furthermore, the positioning group also includes a third positioning part disposed on the base frame and located inside each of the first positioning parts, the top surface of the third positioning part having a support block for supporting the rear axle assembly, and the top surface of the support block having a support surface.

[0011] Furthermore, a support plate is installed on the top surface of the base frame and at the bottom of each of the first positioning parts, the second positioning parts and the third positioning parts, and each of the first positioning parts, the second positioning parts and the third positioning parts is adjustablely mounted on the corresponding support plate along a front-back direction.

[0012] Furthermore, the locking part includes at least two sets of guide rails with grooves distributed in the left-right direction corresponding to each support, and a plurality of locking cones disposed on the guide rails and equally spaced in the left-right direction. Each support plate corresponds to two sets of guide rails, and a downwardly extending sliding part is fixedly connected to each of the opposite sides of each support plate. Each sliding part is slidably disposed in the corresponding two grooves in the left-right direction, and the locking cones are used to lock the sliding parts.

[0013] Furthermore, each of the guide rails includes two crossbars arranged at intervals along the front-back direction, and the space between the two crossbars is configured as the sliding groove.

[0014] Furthermore, the sliding part has several first through holes extending in the front-back direction along the left-right direction, and each of the two crossbars of the guide rail has several second through holes that connect to the slide groove at equal intervals along the left-right direction. Each locking cone includes a head with a diameter larger than the second through hole, a through section connected to the head and passing through one of the crossbars, and a cone end that passes through one of the second through holes, any one of the first through holes, and another second through hole in sequence. A limiting block is provided at the end of the through section near the slide groove, and a spring is sleeved on the through section, with its two ends abutting against the crossbar and the limiting block, respectively.

[0015] The new energy vehicle rear axle assembly support device of this utility model has at least the following beneficial effects: by setting up a positioning group, the rear axle assembly can be supported from multiple positions, thereby facilitating the debugging and testing of the rear axle assembly. The movable positioning group allows for position adjustment, enabling adaptive adjustment according to rear axle assemblies of different sizes, thus supporting and positioning rear axle assemblies of different sizes and shapes. The locking part can lock the positioning group after the position is adjusted to prevent the positioning group from moving during the support process, thereby improving the support stability of the rear axle assembly. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is an assembly diagram of the support device and the rear axle assembly of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the support device of this utility model;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A shown;

[0020] Figure 4 This is a partial sectional view of the side of the support device of this utility model;

[0021] Figure 5 for Figure 4 An enlarged schematic diagram of part B shown;

[0022] Figure 6 This is a structural schematic diagram of one of the support plates and the first positioning part of this utility model.

[0023] The meanings of the labels in the attached diagram are as follows:

[0024] Cup-shaped structure 11, rod-shaped structure 12, irregular structure 13, base frame 2, frame 21, caster wheel 22, support plate 23, sliding hole 231, positioning group 3, first positioning part 31, telescopic rod 311, rubber column 312, second positioning part 32, first support rod 321, limiting block 322, limiting groove 323, third positioning part 33, second support rod 331, support block 332, support surface 333, connecting plate 34, bolt 341, locking part 4, guide rail 41, sliding groove 411, crossbar 412, second through hole 413, locking cone 42, head 421, through section 422, cone end 423, first limiting block 424, spring 425, sliding part 43, first through hole 431. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Please see Figure 1 This is one type of rear axle assembly structure, with a cup-shaped structure 11 at each of its four corners. Each cup-shaped structure 11 has a perforated structure (through hole) formed from the bottom inside. On the front side of the middle of the rear axle assembly, there is a rod-shaped structure 12, and on the rear side of the rod-shaped structure 12, there is an irregular structure 13.

[0027] Please see Figures 1 to 6 The new energy vehicle rear axle assembly support device of this utility model includes a base frame 2, a positioning group 3 movably mounted on the base frame 2, and a locking part 4 mounted on the base frame 2. The base frame 2 is used to support and move the rear axle assembly, the positioning group 3 is used to support and position the rear axle assembly, and the locking part 4 is used to lock the positioning group 3 to restrict the movement of the positioning group 3.

[0028] In this embodiment, the base frame 2 includes a frame 21 and casters 22 disposed at the four corners of the bottom of the frame 21. The frame 21 is welded from multiple square tubes made of alloy material, and the top surface is surrounded by a hollow area. To improve the sturdiness of the frame 21, a base plate located inside the frame 21 is welded to the bottom of the frame 21. The frame 21 has a rectangular parallelepiped structure, with the direction parallel to its length defined as its left-right direction, the direction parallel to its width defined as its front-back direction, and the direction parallel to its height defined as its vertical direction.

[0029] In this embodiment, the positioning group 3 includes a plurality of first positioning parts 31 disposed on the top surface of the base frame 2, a second positioning part 32 disposed on the base frame 2 and located inside each of the first positioning parts 31, and a third positioning part 33 disposed on the base frame 2 and located inside each of the first positioning parts 31. The first positioning part 31 is used to cooperate with each hole structure of the rear axle assembly to achieve lateral (including left, right, front and rear) positioning. The second positioning part 32 is used to allow the rod structure 12 to be inserted into one of the rear axle assemblies to support the rear axle assembly. The third positioning part 33 is used to support the irregular structure 13. The third positioning part 33 cooperates with the second positioning part 32 to prevent the rear axle assembly from swaying back and forth, thereby providing relatively stable support for the rear axle assembly.

[0030] In this embodiment, at least two first positioning parts 31 are configured and are vertically retractable to support and position perforated structures at different heights. In one embodiment, four first positioning parts 31 are configured, suitable for rear axle assemblies with four or fewer perforated structures. For rear axle assemblies with more than four perforated structures, positioning and support can also be achieved by adjusting the positions of the four first positioning parts 31, but the number of first positioning parts 31 is not limited to four in this embodiment. Each first positioning part 31 includes a height-adjustable telescopic rod 311 connected to the top surface of the base frame 2 and distributed vertically, and a rubber post 312 fixedly connected to the top of the telescopic rod 311 for insertion into the perforated structure on the rear axle assembly. The telescopic rod 311 is used to adjust the height of the rubber post 312 so that the rubber post 312 can be inserted into the perforated structure at any height, thereby enabling the use of rear axle assemblies of different shapes and sizes. The telescopic rod 311 can be an electric push rod, a hydraulic rod, or a manually adjustable structure. For example, the telescopic rod 311 includes a threaded cylinder with internal threads and a threaded rod vertically threaded inside the threaded cylinder. Height adjustment is achieved by manually rotating or using an auxiliary tool to rotate the threaded rod. The rubber column 312 includes a support platform fixedly connected to the top of the telescopic rod 311 for supporting the rear axle assembly and a rubber rod coaxially connected to the support platform for inserting into the hole-like structure of the rear axle assembly. The hinge rod and the support platform are integrally formed and can be made of elastic materials such as rubber. This not only reduces wear on the hole-like structure but also achieves lateral limitation by supporting the cup-shaped structure 11, allowing the rear axle assembly to be suspended on the base frame 2, thus facilitating debugging and testing.

[0031] In this embodiment, the second positioning part 32 includes a first support rod 321 connected to the base frame 2 and arranged vertically, and a second limiting block 322 fixedly connected to the top of the first support rod 321. The second limiting block 322 is made of an elastic material such as rubber and is U-shaped with an upwardly communicating limiting groove 323. The limiting groove 323 is also connected to the second limiting block 322 in the left and right directions so that the bottom of the rod-shaped structure 12 of the rear axle assembly can be inserted into it. Through the elastic properties of the elastic material, it can make good contact with the rear axle assembly, and the elastic material can play a good anti-slip role.

[0032] In this embodiment, the third positioning part 33 includes a second support rod 331 connected to the base frame 2 and arranged vertically, and a support block 332 fixedly connected to the top of the second support rod 331. The top surface of the support block 332 has a support surface 333 for supporting the irregular structure 13 of the rear axle assembly, allowing it to be supported on the support surface 333. Combined with the limiting groove 323, it can effectively support the rear axle assembly. The support surface 333 is designed to avoid obstructing the irregular structure 13 and is solely for support. The support block 332 is still made of elastic material to provide a certain degree of anti-slip effect while supporting the irregular structure 13. The second support rod 331 can also be configured as a height-adjustable telescopic structure consistent with the telescopic rod 311.

[0033] To facilitate adaptation to rear axle assemblies of different shapes and sizes, support plates 23 are installed on the top surface of the underframe 2, at the bottom of each first positioning part 31, second positioning part 32, and third positioning part 33. Each first positioning part 31, second positioning part 32, and third positioning part 33 is adjustablely mounted on its corresponding support plate 23 along the front-rear direction. Five support plates 23 can be configured, with four first positioning parts 31 mounted on one support plate 23, and the second positioning parts 32 and third positioning parts 33 mounted on the remaining support plate 23. Therefore, the second positioning parts 32 and third positioning parts 33 are located on the same straight line along the front-rear direction. In another embodiment, six support plates 23 can be configured, with each first positioning part 31, second positioning part, and third positioning part 33 mounted on one of the six support plates 23. Each support plate 23 has at least two vertically oriented sliding holes 231, with the length of each sliding hole 231 arranged along the front-rear direction. A connecting plate 34 is fixedly connected to the bottom end of each of the first positioning parts 31, the second positioning parts 32, and the third positioning parts 33. At least four screw holes (or through holes) are opened on the connecting plate 34 corresponding to the two sliding holes 231. A bolt 341 is screwed into each screw hole. The bottom end of each bolt 341 passes through the corresponding sliding hole 231 and is fixed by a nut. The bolt 341 can slide within the sliding hole 231 to adjust the position of the connecting plate 34. After the nut is tightened on the connecting plate 34, the movement of the connecting plate 34 can be restricted, so that each of the first positioning parts 31, the second positioning parts 32, and the third positioning parts 33 can be adjusted in the front and rear directions to accommodate different rear axle assemblies.

[0034] In this embodiment, the locking part 4 includes at least two sets of guide rails 41 with grooves 411 distributed in the left-right direction corresponding to each support, and a plurality of locking cones 42 disposed on the guide rails 41 and evenly spaced in the left-right direction. The support plate 23 is slidably disposed on the guide rails 41 in the left-right direction to adjust its position, thereby cooperating with the support plate 23 to allow each positioning part to be arbitrarily adjusted in the lateral direction, thus adapting to rear axle assemblies of different shapes and sizes. In this embodiment, in order to ensure the stability of the support plate 23, each support plate 23 corresponds to two sets of guide rails 41, and each support plate 23 has a downwardly extending sliding part 43 fixedly connected to its front and rear sides. Each sliding part 43 is slidably disposed in the corresponding two grooves 411 in the left-right direction, and the locking cones 42 are used to lock the sliding part 43.

[0035] In this embodiment, corresponding to the five support plates 23, the guide rails 41 are arranged in four groups at intervals along the front-to-back direction. For easy distinction, the four groups of guide rails 41 are respectively defined as the first guide rail 41, the second guide rail 41, the third guide rail 41, and the fourth guide rail 41. The sliding portions 43 on the front side of the two support plates 23 equipped with the first positioning part 31 are slidably disposed within the grooves 411 on the first guide rail 41, and the sliding portions 43 on the rear side are slidably disposed within the grooves 411 on the second guide rail 41. Similarly, the sliding portions 43 on the front side of the other two support plates 23 equipped with the first positioning part 31 are slidably disposed within the grooves 411 on the third guide rail 41, and the sliding portions 43 on the rear side are slidably disposed within the grooves 411 on the fourth guide rail 41. The bottom of the support plate 23, which is equipped with the second positioning part 32 and the third positioning part 33, can be provided with four sliding parts 43 arranged in the front-back direction. The four sliding parts 43 are respectively slidably disposed in the grooves 411 on the four guide rails 41, so that the second positioning part 32 and the third positioning part 33 can slide simultaneously in the left-right direction. In this way, each of the first positioning part 31, the second positioning part 32 and the third positioning part 33 can be adjusted in both the front-back direction and the left-right direction.

[0036] In this embodiment, each guide rail 41 includes two horizontal bars 412 spaced apart along the front-back direction. The length direction of each horizontal bar 412 is parallel to the left-right direction. The space between the two horizontal bars 412 is configured as the groove 411, and the sliding part 43 is set corresponding to the sliding width. In this embodiment, the sliding part 43 is cuboid in shape and its thickness is slightly less than the thickness of the groove 411. Each sliding part 43 has several first through holes 431 extending along the front-back direction along the left-right direction. Each guide rail 41 has several second through holes 413 at equal intervals along the left-right direction that connect to the groove 411 along the front-back direction. Each set of guide rails 41 is provided with multiple locking cones 42, and the distance between any two adjacent locking cones 42 is preferably less than the distance between the two farthest first through holes 431 on the sliding part 43, so that each sliding part 43 can cooperate with one or two locking cones 42. Each locking cone 42 includes a head 421 with a diameter larger than the second through hole 413, a through section 422 connected to the head 421 and passing through one of the crossbars 412, and a cone end 423 passing through one of the second through holes 413, any one of the first through holes 431 and another second through hole 413 in sequence. A first limiting block 424 is provided on one end of the through section 422 near the slide groove 411. A spring 425 is sleeved on the through section 422, with its two ends respectively abutting against the inner wall of the crossbar 412 near the head 421 and the first limiting block 424. The cone end 423 is bullet-shaped. When the spring 425 is in its normal state, the cone end 423 passes into the second through hole 413 on the crossbar 412 on the side away from the head 421. When the head 421 is pulled in the front-back direction towards the head 421, the spring 425 is compressed by the first limiting block 424. The cone end 423 moves towards the first through hole 431 until it exits the first through hole 431 and moves into the second through hole 413 in the crossbar 412 near the head 421. At this time, the sliding part 43 can slide freely. When the sliding part 43 is adjusted to the appropriate position, the head 421 is released, and the spring 425 rebounds and resets, causing the cone end 423 to pass through the first through hole 431 and the second through hole 413 in the crossbar 412 on the side away from the head 421, thereby locking the movement of the sliding part 43. If the cone end 423 is not aligned with the first through hole 431, it can be adjusted manually. To reduce this possibility, the distance between any two adjacent first through holes 431 should be small or even intersect. For ease of adjustment, each set of guide rails 41 corresponding to each support plate 23 is provided with a locking cone 42.

[0037] The working method of one embodiment of the support device for the rear axle assembly of the new energy vehicle of this utility model is as follows: First, each first positioning part 31 can be slid outward in the left-right direction to the edge of the guide rail 41, and the telescopic rod 311 of each first positioning part 31 is retracted to the shortest state; then, the locking cone 42 is pulled out corresponding to the rod-shaped structure 12 and the irregular structure 13 of the rear axle assembly, and the support plate 23 corresponding to the second positioning part 32 and the third positioning part 33 is slid to the corresponding position, so that the locking cone 42 locks it; loosen the nut at the bottom of the second positioning part 32 and the third positioning part 33 and adjust their position in the front-back direction, and finally tighten the nut. Using hoisting tools, the rod-shaped structure 12 of the rear axle assembly is manually inserted into the limiting groove 323, and the irregular structure 13 is supported on the supporting surface 333. The locking cones 42 corresponding to the support plates 23 of each first positioning part 31 are pulled out in sequence, so that they are moved to the bottom of each hole structure of the rear axle assembly and the corresponding locking cones 42 are locked. Then, the nuts under each first positioning part 31 are loosened in sequence to slide the first positioning part 31, so that the rubber column 312 is aligned with the hole structure. The height is adjusted to raise the rubber column 312 until the rubber column 312 passes into the hole structure. Finally, the nuts are tightened to complete the support and limiting of the rear axle assembly.

[0038] Compared with the prior art, the new energy vehicle rear axle assembly support device of this utility model can support rear axle assemblies of different shapes and sizes by adjusting the positions of the first positioning part 31, the second positioning part 32 and the third positioning part 33 in the front-rear direction and the left-right direction, thus making it more widely applicable.

Claims

1. A new energy vehicle rear axle assembly mounting and supporting device, comprising a chassis, characterized in that: The underframe is movably provided with a positioning group for supporting and positioning the rear axle assembly, and the underframe is also provided with a locking part for locking the positioning group; the positioning group includes a plurality of first positioning parts provided on the top surface of the underframe, and each first positioning part is retractably provided with respect to each hole-like structure on the rear axle assembly.

2. The new energy vehicle rear axle assembly mounting and supporting device according to claim 1, characterized in that: Each of the first positioning parts includes a height-adjustable telescopic rod connected to the top surface of the chassis and distributed vertically, and a rubber post fixedly connected to the top of the telescopic rod for insertion into a hole-like structure on the rear axle assembly.

3. The new energy vehicle rear axle assembly mounting and supporting device according to claim 2, characterized in that: The rubber column includes a support platform fixedly connected to the top of the telescopic rod for supporting the rear axle assembly, and a rubber rod coaxially connected to the support platform for inserting into the hole-like structure of the rear axle assembly.

4. The new energy vehicle rear axle assembly mounting and supporting device according to claim 1, characterized in that: The positioning group also includes a second positioning part disposed on the underframe and located inside each of the first positioning parts, the top surface of the second positioning part having a limiting groove for the bottom of the rear axle assembly to be inserted therein.

5. The new energy vehicle rear axle assembly mounting and supporting device according to claim 4, characterized in that: The positioning group also includes a third positioning part disposed on the base frame and located inside each of the first positioning parts. The top surface of the third positioning part has a support block for supporting the rear axle assembly, and the top surface of the support block has a support surface.

6. The new energy vehicle rear axle assembly mounting and supporting device according to claim 5, characterized in that: Support plates are installed on the top surface of the base frame and at the bottom of each of the first, second, and third positioning parts. Each of the first, second, and third positioning parts is adjustablely mounted on the corresponding support plate along a front-back direction.

7. The new energy vehicle rear axle assembly support device as described in claim 6, characterized in that: The locking part includes at least two sets of guide rails with grooves distributed in the left and right directions corresponding to each support, and a plurality of locking cones disposed on the guide rails and equally spaced in the left and right directions. Each support plate corresponds to two sets of guide rails, and a downwardly extending sliding part is fixedly connected to each of the opposite sides of each support plate. Each sliding part is slidably disposed in the corresponding two grooves in the left and right directions, and the locking cones are used to lock the sliding parts.

8. The new energy vehicle rear axle assembly mounting and supporting device according to claim 7, characterized in that: Each of the guide rails includes two crossbars arranged at intervals along the front-back direction, and the space between the two crossbars is configured as the groove.

9. The new energy vehicle rear axle assembly mounting and supporting device according to claim 7, characterized in that: The sliding part has several first through holes extending in the left-right direction and in the front-back direction. Each of the two crossbars of the guide rail has several second through holes that connect to the slide groove at equal intervals in the left-right direction. Each locking cone includes a head with a diameter larger than the second through hole, a through section connected to the head and passing through one of the crossbars, and a cone end that passes through one of the second through holes, any one of the first through holes, and another second through hole in sequence. A limiting block is provided at the end of the through section near the slide groove. A spring is sleeved on the through section, with its two ends abutting against the crossbar and the limiting block, respectively.

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