New energy automobile motor dismounting and pulling multifunctional hydraulic equipment

Abstract

This utility model discloses a multi-functional hydraulic device for disassembling and assembling electric motors in new energy vehicles. It includes a base, a hydraulic control system fixedly mounted on the lower surface of the base, and a pulling device and a disassembly / assembly device fixedly mounted on the upper surface, both connected to the hydraulic control system via oil circuits. The pulling device has a liftable pulling end, and the disassembly / assembly device has a liftable disassembly / assembly end. A workbench for fixing the parts to be repaired is located directly below the pulling end and the disassembly / assembly end, respectively. This utility model sets two sets of devices for disassembling parts to be repaired on the same base, fully considering the maintenance needs of motors and related components as well as equipment manufacturing costs. It meets the disassembly / assembly requirements for different separation strokes. The pulling device disassembles the motor coils, while the disassembly / assembly device disassembles and assembles the motor rotor and some shaft-like parts. While achieving automatic disassembly, assembly, and pulling functions, the structure is simpler, the equipment manufacturing cost is lower, and the versatility is better, significantly reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of tooling equipment, and in particular to a multi-functional hydraulic device for disassembling and assembling electric motors for new energy vehicles. Background Technology

[0002] With the popularization of new energy vehicles, the disassembly and repair of motors and related structures such as engines and mechanical bearings in these vehicles are increasing. Traditional disassembly methods rely entirely on manual operation using tools such as hammers and steel needles, which is time-consuming and labor-intensive. Later, more convenient auxiliary tools, such as triangular pullers and hydraulic pullers, emerged, which improved the ease of disassembly to some extent, but the results were unsatisfactory, especially for structures that were corroded or rusted. Traditional tools often lacked the strength to remove components such as motor rotors or copper wires, resulting in problems such as failure to remove them or damage. Although some automated disassembly equipment has appeared on the market, such as the non-destructive disassembly equipment for automotive powertrain motor rotors disclosed in Chinese utility model patent CN220358993U, its overall structure is complex and the equipment is expensive, making it too costly for smaller repair shops. Therefore, a new device is needed to solve the aforementioned technical problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-functional hydraulic device for disassembling, assembling, and removing electric motors for new energy vehicles. While achieving automatic disassembly, assembly, and removal functions, the device has a simpler structure, better versatility, and significantly reduced maintenance costs.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A multi-functional hydraulic device for disassembling and assembling electric motors for new energy vehicles includes a base. A hydraulic control system is fixedly mounted on the lower surface of the base, and a pulling device and a disassembly / assembly device connected to the hydraulic control system are fixedly mounted on the upper surface. The pulling device has a pulling end that can be raised and lowered, and the disassembly / assembly device has a disassembly / assembly end that can be raised and lowered. A worktable for fixing the parts to be repaired is provided directly below the pulling end and the disassembly / assembly end, respectively.

[0006] Furthermore, the disassembly and assembly device includes first columns that are vertically and symmetrically fixed on the base, connecting seats that are fixed to the top of the two first columns, a first hydraulic cylinder that is fixed to the center of the bottom of the connecting seats, a disassembly and assembly clamp that is detachably installed on the movable end of the first hydraulic cylinder to form the disassembly and assembly end, and a fixing clamp that is detachably installed on the base to form the worktable.

[0007] Furthermore, a movable worktable that can be raised and lowered is provided directly below the first hydraulic cylinder.

[0008] Furthermore, a lead screw is rotatably installed inside the first column, which is arranged vertically. A movable nut is threaded on the lead screw, and a driven sprocket is coaxially fixed at the top. A drive motor is fixed inside the connecting seat, and a double sprocket is coaxially fixed at the output end of the drive motor. The two sprocket plates of the double sprocket are respectively connected to two driven sprockets through chain transmission. The two ends of the movable worktable are respectively connected to two movable nuts.

[0009] Furthermore, the movable worktable includes a pair of aircraft frames, a pair of transition frames, and a pair of positioning frames arranged in parallel. The two aircraft frames are integrally formed with two movable nuts. The two transition frames are vertically and movably mounted at both ends of the two aircraft frames. The positioning frames are vertically and movably mounted between the two transition frames, and have symmetrical arc-shaped grooves on their inner sides to form positioning through holes.

[0010] Furthermore, a through groove extending along the length direction is provided on the central axis of the first column, and the aircraft frame and the lead screw are aligned with each other with gaps through the through groove and extending to the outside.

[0011] Furthermore, the pulling device includes a second column vertically fixed on the base, a second hydraulic cylinder fixedly installed inside the second column, a crossbeam vertically provided at the top, a pulley block arranged along the length direction on the crossbeam, a steel rope wound on the pulley block, one end of the steel rope being fixedly connected to the movable end of the second hydraulic cylinder, and the other end being fixedly connected to a connecting rod clamp to form the pulling end.

[0012] Furthermore, the connecting rod gripper includes a pair of connecting rods and a pair of L-shaped clamping rods. The tops of the connecting rods are hinged together, and the bottoms are respectively hinged to the two L-shaped clamping rods. The middle parts of the L-shaped clamping rods are hinged together to form a rhomboid deformation zone. The other end extends away from the hinge center, so that they clamp each other when the rhomboid deformation zone is stretched.

[0013] Furthermore, the pulley block includes traction wheels rotatably mounted at both ends of the crossbeam and a tensioning wheel located between the two traction wheels. The steel rope winds from the upper surface of the traction wheel to the lower surface of the tensioning wheel and then winds out from the upper surface of the other traction wheel.

[0014] Furthermore, a support rod assembly is vertically abutted between the base and the cross frame, and the support rod assembly is movably disposed in the horizontal direction.

[0015] Furthermore, the support rod assembly includes a support rod and a locking block and a jack respectively located at the top and bottom of the support rod. The locking block is fixed to the support rod by welding and has a locking groove adapted to the cross frame. The jack is threadedly connected to the support rod, thereby realizing the length adjustment of the support rod assembly and facilitating movement.

[0016] Furthermore, at least three sets of strip grooves are provided directly below the connecting rod gripper, which are formed on the base and evenly distributed circumferentially. The strip grooves extend radially and a locking rod assembly is movably provided inside them. The locking rod assembly is provided with adjustable grippers. The multiple grippers and the base form the worktable.

[0017] Furthermore, the locking rod assembly includes a screw rod extending through a strip-shaped groove, a limiting block and a wrench respectively fixed to the bottom and top of the screw rod, and a locking sleeve threaded onto the screw rod. The limiting block is intersecting the strip-shaped groove, and the pawl is integrally formed with the locking sleeve and located on the side of the locking sleeve. By rotating the screw rod with the wrench, the height of the pawl on it can be adjusted by moving the locking sleeve closer to or further away from the limiting block, thereby meeting the clamping requirements of parts to be repaired at different heights. The structure is simple and easy to use.

[0018] Furthermore, the second column is located on the side of one of the first columns, and a reinforcing pad is provided between the bottom and the base. The first column near the second column is fixed to the base by the reinforcing pad, thereby increasing the structural strength at this point and preventing the base from deforming and affecting the normal use of the entire equipment.

[0019] Furthermore, the base is equipped with locking casters around its bottom to facilitate the movement of the entire device.

[0020] By adopting the above technical solution, this utility model has the following beneficial effects:

[0021] (1) This utility model sets two sets of devices for disassembling parts to be repaired on the same base, which fully considers the maintenance needs of motors and other related components and the equipment manufacturing cost, and meets the disassembly and assembly needs of different separation strokes. The motor coil is disassembled by the pulling device (the separation stroke is large), and the motor rotor and some shaft parts are disassembled and assembled by the disassembly and assembly device (the separation stroke is small). While realizing the automatic disassembly, assembly and pulling functions, the structure is simpler, the equipment manufacturing cost is low, the versatility is better, and the maintenance cost is significantly reduced.

[0022] (2) The disassembly and assembly device of this utility model uses a hydraulic cylinder as the actuator, which can achieve a large downward pressure and upward pulling force, and forms a rectangular support frame by the first column, connecting seat and base to ensure the stability of the overall structure.

[0023] (3) This utility model adds a liftable mobile worktable. By raising and lowering the mobile worktable, the distance between the shaft parts to be assembled and the disassembly end can be adjusted, thereby meeting the assembly needs of shaft parts of more sizes. In particular, it fills the gap in the assembly of ultra-long shaft parts and is more practical.

[0024] (4) This utility model uses an electric motor as a power source and realizes the lifting and lowering movement of the moving worktable through the transmission of sprockets and lead screws, so as to ensure the smoothness of lifting and high positional accuracy.

[0025] (5) The fixed part (aircraft frame) of the mobile worktable of this utility model is integrally formed with the moving nut, which ensures sufficient connection strength compared with welding and other fixing methods. At the same time, the movable part of the mobile worktable is composed of a pair of transition frames and a pair of positioning frames, which makes it easy for the operator to move the frame freely according to the needs of the shaft parts to be fixed, and combine them into a worktable with the appropriate size.

[0026] (6) By setting the aircraft frame to be aligned with the lead screw axis, this utility model avoids the lead screw from being deformed due to stress after long-term use, which would affect the normal lifting and lowering of the moving worktable.

[0027] (7) The pulling device of this utility model uses a pulley system to pull the steel rope, so that the steel rope moves along a preset route, and then the second hydraulic cylinder drives the connecting rod clamp to lift and lower via the steel rope. The connecting rod clamp is used as the pulling end. When under force, the clamping end of the connecting rod clamp can be naturally clamped, and when the force is lost, the clamping end can be easily separated. The structure is simple and easy to use.

[0028] (8) The pulley block of this utility model adopts a combination of two traction wheels and one tensioning wheel. It is not only simple in structure, but also achieves tension by pressing the tensioning wheel tightly onto the steel rope when the steel rope is under tension, thus ensuring that the pull rope does not deviate and avoiding the phenomenon of the pull rope leaving the track of the traction wheel, thereby improving the safety of use.

[0029] (9) By adding a support rod assembly, this utility model avoids bending and deformation of the cross frame. At the same time, the support rod assembly can be moved and will not interfere with the parts to be repaired placed on the workbench, making it more flexible to use.

[0030] (10) This utility model achieves radial movement of the gripper through the structure of the strip groove, thereby satisfying the fixing of parts to be repaired with different outer diameters and having better versatility. Attached Figure Description

[0031] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0032] Figure 1 This is a perspective view of the present utility model;

[0033] Figure 2 This is the front view of the present invention;

[0034] Figure 3 This is a schematic diagram of the internal structure of the disassembly and assembly device of this utility model.

[0035] The labels in the attached diagram are:

[0036] 1. Base; 2. Hydraulic control system; 3. Pulling device; 4. Second column; 5. Second hydraulic cylinder; 6. Horizontal frame; 7. Pulley block; 8. Steel rope; 9. Connecting rod gripper; 10. Connecting rod; 11. L-shaped clamping rod; 12. Disassembly and assembly device; 13. First column; 14. Through groove; 15. Connecting seat; 16. First hydraulic cylinder; 17. Lead screw; 18. Moving nut; 19. Passive sprocket; 10. Drive motor; 11. Double sprocket; 12. Moving wheel; 13. Strip groove; 14. Locking rod assembly; 15. Screw; 16. Limiting block; 17. Wrench; 18. Locking sleeve; 19. Support rod assembly; 10. Support rod; 11. Clamping block; 12. Jack; 13. Moving worktable; 14. Aircraft frame; 15. Transition frame; 16. Positioning frame; 17. Reinforcing pad; 18. Detailed Implementation

[0037] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0038] (Example 1)

[0039] like Figures 1 to 3 The multi-functional hydraulic disassembly and assembly / removal device shown includes a base 1, a hydraulic control system 2, a pulling device 3, and a disassembly / assembly device 4. The hydraulic control system 2 is fixed to the lower surface of the base 1, while the pulling device 3 and the disassembly / assembly device 4 are fixed to the upper surface of the base 1 and are both connected to the hydraulic control system 2 via oil circuits. The hydraulic control system 2 provides a power source for both devices. The pulling device 3 has a lifting-adjustable pulling end, and the disassembly / assembly device 4 has a lifting-adjustable disassembly / assembly end. A worktable for fixing the parts to be repaired is located directly below both the pulling end and the disassembly / assembly end. By setting two sets of devices for disassembling the parts to be repaired on the same base 1, the device fully considers the maintenance needs of motors and other related components, as well as equipment manufacturing costs, and meets the disassembly / assembly requirements for different separation strokes. The pulling device 3 disassembles the motor coil (with a larger separation stroke), while the disassembly / assembly device 4 disassembles and assembles the motor rotor and some shaft parts (with a smaller separation stroke). While achieving automatic disassembly, assembly, and removal functions, the structure is simpler, the equipment manufacturing cost is lower, the versatility is better, and maintenance costs are significantly reduced.

[0040] Specifically, the base 1 is equipped with movable wheels 5 with locking function around its bottom to facilitate the movement of the entire device. In addition, in order to facilitate the operation of the device, this embodiment is also equipped with a remote control that is signal-connected to both the pulling device 3 and the disassembly device 4.

[0041] The pulling device 3 includes a second column 3-1 vertically fixed to the base 1, a second hydraulic cylinder 3-2 fixedly installed inside the second column 3-1, and a horizontal frame 3-3 vertically mounted on the top. A pulley block 3-4 arranged along the length of the horizontal frame 3-3 is provided on the horizontal frame 3-3, and a steel rope 3-5 is wound around the pulley block 3-4. Specifically, the pulley block 3-4 includes traction wheels rotatably mounted at both ends of the horizontal frame 3-3 and a tensioning wheel located between the two traction wheels. The steel rope 3-5 winds from the upper surface of one traction wheel to the lower surface of the tensioning wheel and then out from the upper surface of the other traction wheel. When the steel rope 3-5 is under tension, it is pressed tightly against the tensioning wheel, thus achieving tension and ensuring that the rope does not deviate, preventing it from detaching from the traction wheel track and improving safety. One end of the steel rope 3-5 is fixedly connected to the movable end of the second hydraulic cylinder 3-2, and the other end is fixedly connected to a connecting rod clamp 3-6, forming the pulling end. The connecting rod gripper 3-6 includes a pair of connecting rods 3-6-1 and a pair of L-shaped grippers 3-6-2. The tops of the two connecting rods 3-6-1 are hinged together, and their bottoms are respectively hinged to the two L-shaped grippers 3-6-2. The middle parts of the two L-shaped grippers 3-6-2 are hinged together, forming a rhomboid deformation zone. The other end extends away from the hinge center, so that they clamp each other when the rhomboid deformation zone is stretched. The entire device uses pulley block 3-4 to pull the steel rope 3-5, so that the steel rope 3-5 moves along a preset route, thereby enabling the second hydraulic cylinder 3-2 to drive the connecting rod gripper 3-6 to rise and fall via the steel rope 3-5. The connecting rod gripper 3-6 is used as the pulling end. When under force, the clamping end of the connecting rod gripper 3-6 can naturally clamp, and when the force is lost, the clamping end can be easily separated. The structure is simple and easy to use.

[0042] Below the connecting rod gripper 3-6, there are three sets of circumferentially evenly distributed strip grooves 6 on the base 1. The strip grooves 6 extend radially, and a locking rod assembly 7 is movably mounted within them. The locking rod assembly 7 has adjustable grippers, and the multiple grippers and the base 1 form a worktable. Specifically, the locking rod assembly 7 includes a screw 7-1 that passes through the strip groove 6, limiting blocks 7-2 and a wrench 7-3 respectively fixed to the bottom and top of the screw 7-1, and a locking sleeve 7-4 threaded onto the screw 7-1. The limiting blocks 7-2 are arranged intersecting with the strip groove 6. The grippers and locking sleeve 7-4 are integrally formed and located on the side of the locking sleeve 7-4. By rotating the screw with the wrench 7-3, the locking sleeve 7-4 is adjusted to move closer to or further away from the limiting block 7-2, thereby adjusting the height of the grippers on it, thus meeting the clamping requirements of parts to be repaired at different heights. The structure is simple and easy to use.

[0043] Taking the removal of the motor coil as an example, the connection at the bottom of the coil is cut off beforehand. When in use, the motor housing is firmly fixed on the base 1 by the claws. The connecting rod claws 3-6 are moved downwards, and the clamping end is aligned with the coil. Then the steel rope is tightened. During this process, the clamping ends of the connecting rod claws 3-6 move closer to each other, clamping the coil. Continue to tighten the steel rope to pull out the coil.

[0044] Because the pulling end requires significant force during operation, a support rod assembly 8 is vertically abutted between the base 1 and the crossbeam 3-3 to prevent the crossbeam 3-3 from bending and deforming. The support rod assembly 8 is horizontally movable and will not interfere with the parts to be repaired placed on the workbench, making it more flexible to use. Specifically, the support rod assembly 8 includes a support rod 8-1 and a locking block 8-2 and a jack 8-3 respectively located at the top and bottom of the support rod 8-1. The locking block 8-2 is welded to the support rod 8-1 and has a locking groove adapted to the crossbeam 3-3. The jack 8-3 is threadedly connected to the support rod 8-1, thereby enabling the length adjustment of the support rod assembly 8 and facilitating its movement.

[0045] The disassembly / assembly device 4 includes two first columns 4-1 vertically and symmetrically fixed to the base 1. Connecting seats 4-2 are fixedly connected to the tops of the two first columns 4-1. A first hydraulic cylinder 4-3 is fixedly mounted at the center of the bottom of the connecting seats 4-2. A disassembly / assembly fixture is detachably mounted on the movable end of the first hydraulic cylinder 4-3, forming a disassembly / assembly end. A fixing fixture is detachably mounted on the base 1, forming a worktable. The disassembly / assembly fixture and fixing fixture are customized according to the parts to be repaired; this is a simple tooling customization and a common existing technology, which will not be elaborated here. Using the first hydraulic cylinder 4-3 as the actuating element, a large downward and upward force can be achieved. The first columns 4-1, connecting seats 4-2, and base 1 form a rectangular support frame, ensuring the stability of the overall structure. One of the first columns 4-1 is located on the side of the second column 3-1. Since the base 1 at this location will bear a large pressure, to prevent the base 1 from deforming and affecting the normal use of the entire device... In this embodiment, a reinforcing pad 10 is added between the bottom of the first column 4-1 and the second column 3-1 and the base 1 to increase the structural strength at this point.

[0046] To accommodate the assembly of shaft parts of greater length, this embodiment features a liftable movable worktable 9 directly below the first hydraulic cylinder 4-3. By raising and lowering the movable worktable 9, the distance between the shaft part to be assembled and the disassembly / assembly end can be adjusted, thereby meeting the assembly needs of shaft parts of greater size. In particular, it fills the gap in assembling ultra-long shaft parts, making it more practical.

[0047] Specifically, a lead screw 4-4 is rotatably mounted inside the first column 4-1, with a movable nut 4-5 threaded onto the lead screw 4-4. A driven sprocket 4-6 is coaxially fixed at the top. A drive motor 4-7 is fixed inside the connecting seat 4-2. A double sprocket 4-8 is coaxially fixed to the output end of the drive motor 4-7. The two sprocket plates of the double sprocket 4-8 are respectively connected to the two driven sprockets 4-6 via chain drive. The two ends of the movable worktable 9 are respectively connected to the two movable nuts 4-5. The movable worktable 9 includes a pair of aircraft frames 9-1, a pair of transition frames 9-2, and a pair of positioning frames 9-3 arranged in parallel. The two aircraft frames 9-1 are integrally formed with the two movable nuts 4-5. The two transition frames 9-2 are vertically movably mounted at the two ends of the two aircraft frames 9-1. The positioning frames 9-3 are vertically movably mounted between the two transition frames 9-2, and have symmetrical arc-shaped grooves on their inner sides to form positioning through holes. In use, place the shaft-type parts at the positioning through hole, replace the disassembly and assembly fixture at the lower end of the first hydraulic cylinder 4-3 with a suitable tooling, and press down the first hydraulic cylinder 4-3 to assemble the shaft-type parts.

[0048] Considering that long-term use may cause deformation of the lead screw 4-4 under stress, this embodiment provides a through groove 4-1-1 extending along the length direction on the central axis of the first column 4-1. The aircraft frame 9-1 is aligned with the axis of the lead screw 4-4, and both ends pass through the through groove 4-1-1 with a gap and extend to the outside. By setting the aircraft frame 9-1 to be axially aligned with the lead screw 4-4, the stress distribution on the lead screw 4-4 is made uniform, ensuring the normal lifting and lowering of the moving worktable 9.

[0049] This utility model sets two sets of devices for disassembling parts to be repaired on the same base 1, which fully considers the maintenance needs of motors and other related components and the equipment manufacturing cost, and meets the disassembly and assembly needs of different separation strokes. The pulling device 3 realizes the disassembly of the motor coil (with a large separation stroke), and the disassembly and assembly device 4 disassembles and assembles the motor rotor and some shaft parts (with a small separation stroke). While realizing automatic disassembly, assembly and pulling functions, the structure is simpler, the equipment manufacturing cost is lower, the versatility is better, and the maintenance cost is significantly reduced, filling the gap in the lack of tools in the new energy motor repair industry.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles, characterized in that: The device includes a base, on the lower surface of which a hydraulic control system is fixedly mounted, and on the upper surface of which a pulling device and a disassembly / assembly device connected to the hydraulic control system are fixedly mounted. The pulling device has a pulling end that can be raised and lowered, and the disassembly / assembly device has a disassembly / assembly end that can be raised and lowered. A worktable for fixing the part to be repaired is provided directly below the pulling end and the disassembly / assembly end, respectively.

2. The multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 1, characterized in that: The disassembly and assembly device includes first columns that are vertically and symmetrically fixed on the base. The tops of the two first columns are fixedly connected to connecting seats. A first hydraulic cylinder is fixedly installed at the center of the bottom of the connecting seats. The movable end of the first hydraulic cylinder is detachably equipped with a disassembly and assembly clamp to form the disassembly and assembly end. A fixing clamp is detachably installed on the base to form the worktable.

3. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 2, characterized in that: A movable worktable that can be raised and lowered is provided directly below the first hydraulic cylinder.

4. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 3, characterized in that: The first column is rotatably equipped with a lead screw arranged in the vertical direction. The lead screw is threaded with a movable nut. A driven sprocket is coaxially fixed at the top. A drive motor is fixedly installed in the connecting seat. The output end of the drive motor is coaxially fixedly connected to a double sprocket. The two sprocket plates of the double sprocket are respectively connected to two driven sprockets through chain drive. The two ends of the movable worktable are respectively connected to two movable nuts.

5. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 4, characterized in that: The movable worktable includes a pair of aircraft frames, a pair of transition frames, and a pair of positioning frames arranged in parallel. The two aircraft frames are integrally formed with two movable nuts. The two transition frames are vertically and movably mounted at both ends of the two aircraft frames. The positioning frames are vertically and movably mounted between the two transition frames, and have symmetrical arc-shaped grooves on their inner sides to form positioning through holes.

6. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 5, characterized in that: The first column has a through groove extending along its length on its central axis. The aircraft frame is aligned with the axis of the lead screw, and both ends of the frame pass through the through groove and extend to the outside.

7. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to any one of claims 1 to 6, characterized in that: The pulling device includes a second column fixedly mounted vertically on the base, a second hydraulic cylinder fixedly mounted inside the second column, a crossbeam vertically mounted on the top, a pulley block arranged along the length of the crossbeam, a steel rope wound around the pulley block, one end of the steel rope being fixedly connected to the movable end of the second hydraulic cylinder, and the other end being fixedly connected to a connecting rod clamp to form the pulling end.

8. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 7, characterized in that: The pulley block includes traction wheels rotatably mounted at both ends of the crossbeam and a tensioning wheel located between the two traction wheels. The steel rope winds from the upper surface of the traction wheel to the lower surface of the tensioning wheel and then winds out from the upper surface of the other traction wheel.

9. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 7, characterized in that: A support rod assembly is vertically abutting between the base and the cross frame, and the support rod assembly is movable in the horizontal direction.

10. A multi-functional hydraulic device for disassembling and removing electric motors for new energy vehicles according to claim 7, characterized in that: At least three sets of strip grooves are provided directly below the connecting rod gripper, which are evenly distributed circumferentially on the base. The strip grooves extend radially and a locking rod assembly is movably provided inside them. The locking rod assembly is provided with adjustable grippers. The multiple grippers and the base form the worktable.

Images