Transferring and hanging device suitable for bearing and non-bearing type chassis

Abstract

The transfer hanging device suitable for bearing the non-bearing type chassis comprises a fixed rail unit, a movable rail unit and a chassis transfer hanging unit, the movable rail unit is movably arranged on the fixed rail unit, and the chassis transfer hanging unit is movably arranged on the movable rail unit. The chassis transferring and hanging unit can be suitable for transferring and hanging operation of two kinds of chassis on a bearing vehicle type and a non-bearing vehicle type, switching production can be carried out between different vehicle types more quickly, the production line pause time caused by production switching is shortened, the investment cost of flexible mixed line production is reduced, the utilization rate of flexible mixed line production equipment is increased, and the production efficiency is improved. And the overall production efficiency of the mixed production line is improved.

Description

Technical Field

[0001] The present invention belongs to the field of chassis assembly in the automobile general assembly production line. Specifically, the present invention relates to a non-load-bearing chassis transfer device suitable for loading and unloading Background Art

[0002] Load-bearing vehicles and non-load-bearing vehicles are two main types of automobile body structures. There is no independent rigid frame on load-bearing vehicles, and the main body of the vehicle body directly serves as the installation base for the engine and each chassis assembly. By strengthening parts such as the front end, side panels, rear end, and floor, various load forces are borne. Load-bearing vehicles are light in weight, have a relatively low center of gravity, are stable when driving on the road, have a low vibration frequency, low noise, and a high utilization rate of the interior space, but their torsional rigidity and load-bearing capacity are relatively weak; non-load-bearing vehicles have an independent frame, and the vehicle body is suspended on the frame through elastic elements such as springs or rubber pads. The chassis assembly, including transmission, drive, steering, and the engine, is also installed on the frame. Non-load-bearing vehicles have a high body strength, and the steel frame can provide strong rigidity, excellent shock absorption performance, and good anti-bumping performance. When driving on rough roads, the vehicle body can be better stabilized, but the overall vehicle mass is large, the center of gravity is relatively high, and the stability is poor when driving at high speeds. It is not as stable as a load-bearing body when driving on the road, will generate vibrations, and the noise is also relatively large. The longitudinal beam of the non-load-bearing vehicle is bolted to the vehicle body, with good off-road performance. The body of the load-bearing vehicle is an integral frame structure, and the vehicle body and the chassis are inseparable, with better comfort.

[0003] The chassis parts of non-load-bearing vehicles are assembled on the frame line and all assembled on the frame, and then the whole is transferred and hung on the assembly AGV, and then integrally assembled with the vehicle body. The chassis parts of load-bearing vehicles are sub-assembled on two trays of the front suspension and the rear suspension, and then are respectively transported to the transfer mechanism by the sub-assembly AGV car and combined with the assembly AGV. In existing automobile manufacturing plants, the chassis transfer mechanism cannot be compatible with the mixed-line production of the two types of vehicles. They are two independent production lines. Since the market demand for vehicle models is constantly changing and the production volume also needs to be adjusted according to the market, the non-load-bearing vehicle and the load-bearing vehicle need to be flexibly mixed and produced to save investment and reduce the planned area. However, the flexible mixed-line production in the prior art is not convenient for the transfer operation of the two types of chassis on load-bearing vehicles and non-load-bearing vehicles.

[0004] Therefore, in order to improve or solve at least one of the above problems, a non-load-bearing chassis transfer device is provided, which is applicable to the transfer operation of the two types of chassis on load-bearing vehicles and non-load-bearing vehicles, is beneficial to reducing the investment cost of flexible mixed-line production, and is beneficial to improving the production efficiency of flexible mixed-line production. Summary of the Invention

[0005] The present invention is made to solve the above problems, and aims to provide a chassis transfer and hanging device applicable to both load-bearing vehicle models and non-load-bearing vehicle models, which is conducive to reducing the investment cost of flexible mixed-line production and improving the production efficiency of flexible mixed-line production. To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] The present invention provides a chassis transfer and hanging device applicable to load-bearing and non-load-bearing types, having the following characteristics: including a fixed rail unit, a moving rail unit, and a chassis transfer and hanging unit. The moving rail unit is movably arranged on the fixed rail unit, and the chassis transfer and hanging unit is movably arranged on the moving rail unit.

[0007] In the chassis transfer and hanging device applicable to load-bearing and non-load-bearing types provided by the present invention, it may also have the following characteristics: the fixed rail unit includes a fixed rail bracket and a fixed rail slider guide assembly arranged on the fixed rail bracket. The fixed rail slider guide assembly includes a fixed rail guide and fixed rail sliders arranged on the fixed rail guide. The fixed rail sliders are connected to the moving rail unit.

[0008] In the chassis transfer and hanging device applicable to load-bearing and non-load-bearing types provided by the present invention, it may also have the following characteristics: the fixed rail bracket includes a fixed rail cross beam and fixed rail vertical beams. The ends of the fixed rail vertical beams are connected to the ends of the fixed rail cross beam. The fixed rail guide is arranged on the fixed rail cross beam, and a limit baffle is arranged on the fixed rail cross beam.

[0009] In the chassis transfer and hanging device applicable to load-bearing and non-load-bearing types provided by the present invention, it may also have the following characteristics: the moving rail unit includes a moving rail bracket and a lifting frame assembly connected to the moving rail bracket. The moving rail bracket is movably arranged on the fixed rail unit, and the moving rail bracket is connected to the fixed rail sliders.

[0010] In the chassis transfer and hanging device applicable to load-bearing and non-load-bearing types provided by the present invention, it may also have the following characteristics: the lifting frame assembly includes a lifting frame body, a gear lifter, a lifting screw, and a lifting motor. The lifting frame body is connected to the moving rail bracket. The lifting motor is arranged on the lifting frame body and is connected to the gear lifter. The lifting screw is movably arranged in the gear lifter, and a connecting flange is provided at one end of the lifting screw. The connecting flange is connected to the chassis transfer and hanging unit.

[0011] In the chassis transfer and hanging device applicable to load-bearing and non-load-bearing types provided by the present invention, it may also have the following characteristics: a gear commutator is provided between the lifting motor and the gear lifter. A first synchronous shaft is provided between the gear commutator and the gear lifter. One end of the first synchronous shaft is connected to the gear commutator, and the other end of the first synchronous shaft is connected to the gear lifter. The lifting frame assembly further includes a second synchronous shaft, and the end of the second synchronous shaft is connected to the gear lifter.

[0012] In the non-load-bearing chassis transfer device applicable to the present invention, it may further have the following characteristics: the chassis transfer unit includes a transfer bracket, a transfer drive assembly, and a spreader assembly. The transfer bracket is connected to the lifting screw. The transfer drive assembly is arranged on the grasping bracket, and the spreader assembly is connected to the transfer drive assembly.

[0013] In the non-load-bearing chassis transfer device applicable to the present invention, it may further have the following characteristics: the transfer drive assembly includes a transfer guide rail, a transfer slider, and a transfer drive cylinder. The transfer guide rail is arranged on the transfer bracket. The transfer slider is movably arranged on the transfer guide rail. The transfer slider is connected to the spreader assembly. The transfer drive cylinder is arranged on the transfer bracket and is connected to the spreader assembly.

[0014] In the non-load-bearing chassis transfer device applicable to the present invention, it may further have the following characteristics: the spreader assembly includes a connecting beam, a lifting arm, a support rod, and a reinforcing rod. The connecting beam is connected to the transfer slider. One end of the lifting arm is connected to the connecting beam, and the other end of the lifting arm is connected to the support rod. The end of the reinforcing rod is connected to the lifting arm.

[0015] In the non-load-bearing chassis transfer device applicable to the present invention, it may further have the following characteristics: a support pin and a support block are provided on the support rod.

[0016] The technical effect of the present invention is as follows: the non-load-bearing chassis transfer device applicable to the present invention includes a fixed rail unit, a moving rail unit, and a chassis transfer unit. The moving rail unit is movably arranged on the fixed rail unit, and the chassis transfer unit is movably arranged on the moving rail unit. The chassis transfer unit can be applicable to the transfer operations of two types of chassis on load-bearing models and non-load-bearing models, enabling faster switching production between different models, reducing the downtime of the production line caused by production switching, being beneficial to reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and improving the overall production efficiency of flexible mixed-line production.

[0017] Therefore, the non-load-bearing chassis transfer device applicable to the present invention can be applicable to the transfer operations of two types of chassis on load-bearing models and non-load-bearing models, being beneficial to reducing the investment cost of flexible mixed-line production and being beneficial to improving the production efficiency of flexible mixed lines. Description of the Drawings

[0018] This specification includes the following drawings, and the shown contents are respectively:

[0019] Figure 1 It is a schematic structural diagram of the non-load-bearing chassis transfer device applicable to the embodiment of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the fixed rail unit in the embodiment of the present invention;

[0021] Figure 3 is a schematic structural view of the moving rail unit in the embodiment of the present invention Figure 1 ;

[0022] Figure 4 is a schematic structural view of the moving rail unit in the embodiment of the present invention Figure 2 ;

[0023] Figure 5 is Figure 4 a partial enlarged view of part A in

[0024] Figure 6 is a schematic structural view of the lifting frame assembly in the embodiment of the present invention;

[0025] Figure 7 is a schematic structural view of the chassis transfer unit in the embodiment of the present invention;

[0026] Figure 8 is a schematic structural view of the support pin in the embodiment of the present invention;

[0027] Figure 9 is a schematic structural view of the support block in the embodiment of the present invention.

[0028] In the figure, the markings are: fixed rail unit - 10, fixed rail bracket - 11, fixed rail cross beam - 111, fixed rail vertical beam - 112, fixed rail slider guide rail assembly - 12, fixed rail guide rail - 121, fixed rail slider - 122, fixed rail slider - 13, moving rail unit - 20, moving rail bracket - 21, lifting frame assembly - 22, lifting frame body - 221, gear lifter - 222, lifting screw - 223, lifting motor - 224, connecting flange - 225, gear commutator - 226, first synchronizing shaft - 227, second synchronizing shaft - 228, chassis transfer unit - 30, transfer bracket - 31, transfer drive assembly - 32, transfer guide rail - 321, transfer slider - 322, transfer drive cylinder - 323, sling assembly - 33, connecting beam - 331, lifting arm - 332, support rod - 333, reinforcing rod - 334, support pin - 335, support block - 336. Detailed implementation manners

[0029] The following is a more detailed description of the specific implementation manners of the present invention by describing the embodiments with reference to the accompanying drawings, aiming to help those skilled in the art have a more complete, accurate and in - depth understanding of the inventive concept and technical solution of the present invention and to facilitate its implementation.

[0030] Figure 1 is a schematic structural view of the non - load - bearing chassis transfer device applicable in the embodiment of the present invention.

[0031] Such as Figure 1As shown in the figure, the non-load-bearing chassis transfer device applicable to the present invention includes a fixed rail unit 10, a moving rail unit 20, and a chassis transfer unit 30. The moving rail unit 20 is movably arranged on the fixed rail unit 10, and the chassis transfer unit 30 is movably arranged on the moving rail unit 20. The chassis transfer unit 30 can be applicable to the transfer operations of two types of chassis on load-bearing models and non-load-bearing models, enabling faster switching production between different models, reducing the production line downtime caused by production switching, facilitating reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and enhancing the overall production efficiency of flexible mixed-line production. Thus, the non-load-bearing chassis transfer device applicable to the present invention can be applicable to the transfer operations of two types of chassis on load-bearing models and non-load-bearing models, which is conducive to reducing the investment cost of flexible mixed-line production and improving the production efficiency of flexible mixed-line production.

[0032] Figure 2 It is a schematic structural diagram of the fixed rail unit in the embodiment of the present invention.

[0033] As Figure 2 shown in the figure, the fixed rail unit 10 includes a fixed rail bracket 11 and a fixed rail slider guide rail assembly 12. The fixed rail slider guide rail assembly 12 is arranged on the fixed rail bracket 11. The fixed rail slider guide rail assembly 12 includes a fixed rail guide 121 and a fixed rail slider 122. The fixed rail guide 121 is arranged on the fixed rail bracket 11, and the fixed rail slider 122 is slidably arranged on the fixed rail guide 121. The fixed rail slider 122 is connected to the moving rail unit 20, enabling the moving rail unit 20 to slide along the fixed rail guide 121, facilitating the movement of the chassis transfer unit 30, facilitating the transfer operations of two types of chassis on load-bearing models and non-load-bearing models, enabling faster switching production between different models, reducing the production line downtime caused by production switching, facilitating reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and enhancing the overall production efficiency of flexible mixed-line production.

[0034] As Figure 2 shown in the figure, the fixed rail bracket 11 includes a fixed rail cross beam 111 and a fixed rail vertical beam 112. The end of the fixed rail vertical beam 112 is connected to the end of the fixed rail cross beam 111. Two fixed rail cross beams 111 are arranged parallel to each other, and two fixed rail vertical beams 112 are arranged parallel to each other, forming a rectangular fixed rail bracket 11. The fixed rail guide 121 is arranged along the length direction of the fixed rail cross beam 111, and two fixed rail guides are respectively arranged on two fixed rail cross beams 111, improving the structural strength and load-bearing capacity of the fixed rail bracket 11 and the fixed rail slider guide rail assembly 12, enabling the fixed rail unit 10 to stably support two types of chassis on load-bearing models and non-load-bearing models during production, and improving the reliability of the structure.

[0035] As Figure 2As shown in the figure, a limit baffle 13 is provided on the fixed rail cross beam 111. The limit baffle 13 is located at both ends of the fixed rail guide 121 and can limit the fixed rail slider 13 to prevent the fixed rail slider 13 from slipping off the fixed rail guide 121, improving the reliability of the structure.

[0036] Figure 3 is a schematic structural view of the moving rail unit in the embodiment of the present invention Figure 1 ; Figure 4 is a schematic structural view of the moving rail unit in the embodiment of the present invention Figure 2 .

[0037] As Figure 3 and Figure 4 shown, the moving rail unit 20 includes a moving rail bracket 21 and a lifting frame assembly 22. The lifting frame assembly 22 is connected to the moving rail bracket 21. The moving rail bracket 21 is movably arranged on the fixed rail unit 10. The moving rail bracket 21 is connected to the fixed rail slider 122, so that the moving rail bracket 21 can drive the lifting frame assembly 22 to slide along the fixed rail guide 121, facilitating the transfer of the mobile chassis hanging unit 30, facilitating the transfer operation of two types of chassis on the load-bearing vehicle type and the non-load-bearing vehicle type, enabling faster switching production between different vehicle types, reducing the downtime of the production line caused by production switching, being beneficial to reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and improving the overall production efficiency of flexible mixed-line production.

[0038] Figure 5 is Figure 4 a partial enlarged view of part A in

[0039] As Figure 3 , Figure 4 and Figure 5 shown, the lifting frame assembly 22 includes a lifting frame body 221, a gear lifter 222, a lifting screw 223 and a lifting motor 224. The lifting frame body 221 is connected to the moving rail bracket 21. The lifting motor 224 is arranged on the lifting frame body 221. The motor shaft of the lifting motor 224 is connected to the gear lifter 222. The lifting screw 223 is movably arranged in the gear lifter 222. The lifting screw 223 is arranged in the vertical direction. The lifting motor 224 can drive the lifting screw 223 to perform lifting movement in the vertical direction through the gear lifter 222. A connecting flange 225 is provided at one end of the lifting screw 223. The connecting flange 225 is connected to the chassis transfer unit 30, so that the lifting screw 223 can drive the chassis grabbing unit 30 to perform lifting movement in the vertical direction, facilitating the transfer operation of two types of chassis on the load-bearing vehicle type and the non-load-bearing vehicle type.

[0040] Figure 6 is a schematic structural view of the lifting frame assembly in the embodiment of the present invention.

[0041] AsFigure 3 , Figure 4 , Figure 5 and Figure 6 As shown in Figure 6 , a gear commutator 226 is provided between the lifting motor 224 and the gear lifter 222. A first synchronizing shaft 227 is provided between the gear commutator 226 and the gear lifter 22. Two first synchronizing shafts 227 are respectively arranged at both ends of the gear commutator 226. One end of the first synchronizing shaft 227 is connected to the gear commutator 226, and the other end of the first synchronizing shaft 227 is connected to the gear lifter 222. The lifting frame assembly 22 further includes a second synchronizing shaft 228. The end of the second synchronizing shaft 228 is connected to the gear lifter 222. Both ends of the second synchronizing shaft 228 are respectively connected to two gear lifters 222. Multiple lifting screws 223 can be connected through the first synchronizing shaft 227 and the second synchronizing shaft 228, thereby increasing the connection stability between the chassis transfer unit 30 and the lifting frame assembly 22, improving the load-bearing capacity of the lifting frame assembly 22, and ensuring that the transfer operation of two types of chassis on the load-bearing vehicle type and the non-load-bearing vehicle type can be carried out. Two groups of chassis transfer units 30 are arranged on the lifting frame assembly 22, respectively located on both sides of the lifting frame body 221. Each group of chassis transfer units 30 is respectively connected to four lifting screws 223, ensuring the stability of the chassis transfer unit 30 during the transfer operation and improving the reliability of the structure.

[0042] Figure 7 FIG. is a schematic structural diagram of the chassis transfer unit in the embodiment of the present invention.

[0043] As Figure 7 shown, the chassis transfer unit 30 includes a transfer bracket 31, a transfer drive assembly 32, and a spreader assembly 33. The transfer bracket 31 is connected to the lifting screw 223 through a connecting flange 225. The transfer drive assembly 32 is arranged on the transfer bracket 31. The spreader assembly 33 is connected to the transfer drive assembly 32, so that the transfer drive assembly 32 can drive the spreader assembly 33 to move. Two groups of chassis transfer units 30 are respectively located on both sides of the chassis, facilitating the transfer operation of lifting two types of chassis on the load-bearing vehicle type and the non-load-bearing vehicle type, enabling faster switching production between different vehicle types, reducing the downtime of the production line caused by production switching, being beneficial to reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and improving the overall production efficiency of flexible mixed-line production.

[0044] The hanging transfer driving assembly 32 includes a hanging transfer guide rail 321, a hanging transfer slider 322, and a hanging transfer driving cylinder 323. The hanging transfer guide rail 321 is arranged on the hanging transfer bracket 31. The hanging transfer slider 322 is slidably arranged on the hanging transfer guide rail 321. The hanging transfer slider 322 is connected to the lifting appliance assembly 33. The hanging transfer driving cylinder 323 is arranged on the hanging transfer bracket 31. The telescopic end of the hanging transfer driving cylinder 323 is connected to the lifting appliance assembly 33, and can drive the lifting appliance assembly 33 to approach or move away from the chassis, facilitating the lifting of the chassis.

[0045] The lifting appliance assembly 33 includes a connecting beam 331, a lifting arm 332, a support rod 333, and a reinforcing rod 334. The connecting beam 331 is connected to the hanging transfer slider 322. Two connecting beams 331 are arranged in parallel. One end of the lifting arm 332 is connected to the connecting beam 331, and the other end of the lifting arm 332 is connected to the support rod 333. Two lifting arms 332 are arranged in parallel. The end of the reinforcing rod 334 is connected to the lifting arm 332, thereby enhancing the structural strength and load-bearing capacity of the lifting appliance assembly 33, enabling the lifting appliance assembly 33 to stably support two types of chassis on load-bearing vehicles and non-load-bearing vehicles during the production process, and improving the reliability of the structure.

[0046] Figure 8 is a schematic structural diagram of the support pin in the embodiment of the present invention; Figure 9 is a schematic structural diagram of the support block in the embodiment of the present invention.

[0047] As Figure 8 and Figure 9 shown, support pins 335 and support blocks 336 are respectively arranged on the lifting appliance assemblies 33 on both sides of the chassis. The support pins 335 and support blocks 336 are respectively arranged on the support rods 333 on both sides of the chassis. The support pins 335 and support blocks 336 are in contact with the bottom of the vehicle chassis, facilitating the lifting appliance assembly 33 to lift the chassis. Moreover, the hanging transfer driving assembly 32 can adjust the positions of the lifting appliance assemblies 33 on both sides of the chassis, and can adjust the positions of the support pins 335 and support blocks 336 according to different vehicle types, so as to be applicable to the hanging transfer operations of two types of chassis on load-bearing vehicles and non-load-bearing vehicles, more quickly switch production between different vehicle types, reduce the downtime of the production line caused by production switching, is conducive to reducing the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and improving the overall production efficiency of flexible mixed-line production.

[0048] Functions and effects of the embodiment

[0049] The transfer and suspension device for load-bearing and non-load-bearing chassis provided by the present invention includes a fixed rail unit 10, a moving rail unit 20, and a chassis transfer and suspension unit 30. The moving rail unit 20 is movably arranged on the fixed rail unit 10, and the chassis transfer and suspension unit 30 is movably arranged on the moving rail unit 20. The chassis transfer and suspension unit 30 is capable of performing the transfer and suspension operations of two types of chassis on load-bearing vehicle models and non-load-bearing vehicle models, enabling faster switching between different vehicle models during production, reducing the downtime of the production line caused by production switching, facilitating the reduction of the investment cost of flexible mixed-line production, improving the utilization rate of flexible mixed-line production equipment, and enhancing the overall production efficiency of flexible mixed-line production. Thus, the transfer and suspension device for load-bearing and non-load-bearing chassis provided by the present invention can perform the transfer and suspension operations of two types of chassis on load-bearing vehicle models and non-load-bearing vehicle models, which is conducive to reducing the investment cost of flexible mixed-line production and improving the production efficiency of flexible mixed-line production.

[0050] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention; or without improvement, the above concept and technical solution of the present invention are directly applied to other occasions, they are all within the protection scope of the present invention.

Claims

1. A transfer hitch device applicable to a non-load-bearing chassis, characterized in that, It includes a fixed rail unit (10), a moving rail unit (20), and a chassis hanging unit (30). The moving rail unit (20) is movably arranged on the fixed rail unit (10), and the chassis hanging unit (30) is movably arranged on the moving rail unit (20).

2. The non-load-bearing chassis transfer device applicable to the carrier according to claim 1, wherein The fixed rail unit (10) includes a fixed rail bracket (11) and a fixed rail slider guide assembly (12) arranged on the fixed rail bracket (11). The fixed rail slider guide assembly (12) includes a fixed rail guide (121) and a fixed rail slider (122) arranged on the fixed rail guide (121). The fixed rail slider (122) is connected to the moving rail unit (20).

3. The non-load-bearing chassis transfer hanging device applicable according to claim 2, characterized in that, The fixed rail bracket (11) includes a fixed rail cross beam (111) and a fixed rail vertical beam (112). The end of the fixed rail vertical beam (112) is connected to the end of the fixed rail cross beam (111). The fixed rail guide (121) is arranged on the fixed rail cross beam (111), and a limit baffle (13) is arranged on the fixed rail cross beam (111).

4. The non-load-bearing chassis transfer and suspension device according to claim 3, characterized in that, The moving rail unit (20) includes a moving rail bracket (21) and a lifting frame assembly (22) connected to the moving rail bracket (21). The moving rail bracket (21) is movably arranged on the fixed rail unit (10), and the moving rail bracket (21) is connected to the fixed rail slider (122).

5. The non-load-bearing chassis transfer device applicable for loading according to claim 4, wherein, The lifting frame assembly (22) includes a lifting frame body (221), a gear lifter (222), a lifting screw (223), and a lifting motor (224). The lifting frame body (221) is connected to the moving rail bracket (21). The lifting motor (224) is arranged on the lifting frame body (221). The lifting motor (224) is connected to the gear lifter (222). The lifting screw (223) is movably arranged in the gear lifter (222). One end of the lifting screw (223) is provided with a connecting flange (225), and the connecting flange (225) is connected to the chassis hanging unit (30).

6. The non-load-bearing chassis transfer device applicable to a carrier according to claim 5, characterized in that A gear commutator (226) is arranged between the lifting motor (224) and the gear lifter (222). A first synchronous shaft (227) is arranged between the gear commutator (226) and the gear lifter (222). One end of the first synchronous shaft (227) is connected to the gear commutator (226), and the other end of the first synchronous shaft (227) is connected to the gear lifter (222). The lifting frame assembly (22) further includes a second synchronous shaft (228), and the end of the second synchronous shaft (228) is connected to the gear lifter (222).

7. The non-load-bearing chassis transfer and suspension device applicable according to claim 6, characterized in that The chassis hanging unit (30) includes a hanging bracket (31), a hanging drive assembly (32), and a sling assembly (33). The hanging bracket (31) is connected to the lifting screw (223). The hanging drive assembly (32) is arranged on the grasping and hanging bracket (), and the sling assembly (33) is connected to the hanging drive assembly (32).

8. The applicable non-load-bearing chassis swivel hitch device according to claim 7, characterized in that, The transfer and hanging drive assembly (32) includes a transfer and hanging guide rail (321), a transfer and hanging slider (322), and a transfer and hanging drive cylinder (323). The transfer and hanging guide rail (321) is arranged on the transfer and hanging bracket (31). The transfer and hanging slider (322) is movably arranged on the transfer and hanging guide rail (321). The transfer and hanging slider (322) is connected to the spreader assembly (33). The transfer and hanging drive cylinder (323) is arranged on the transfer and hanging bracket (31), and the transfer and hanging drive cylinder (323) is connected to the spreader assembly (33).

9. The transfer-hanging device applicable to a non-load-bearing chassis according to claim 8, characterized in that, The spreader assembly (33) includes a connecting beam (331), a hanging arm (332), a support rod (333), and a reinforcing rod (334). The connecting beam (331) is connected to the transfer and hanging slider (322). One end of the hanging arm (332) is connected to the connecting beam (331), and the other end of the hanging arm (332) is connected to the support rod (333). The end of the reinforcing rod (334) is connected to the hanging arm (332).

10. The non-load-bearing chassis transfer hanging device applicable according to claim 9, characterized in that, A support pin (335) and a support block (336) are arranged on the support rod (333).

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