Motor pulley auxiliary dismounting device
By using the electric rotating component and disassembly component of the motor pulley-assisted disassembly device, stable center alignment and precise disassembly of the motor pulley are achieved, solving the problems of time-consuming and laborious operation and damage to parts caused by existing tools, and ensuring safe and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU XINJIEFEI MICRO MOTOR MFG CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
Existing tools for disassembling motor pulleys require multiple people to work together, which is time-consuming and labor-intensive, and can easily lead to damage to parts and injury to personnel. In addition, traditional tools are prone to causing deformation and slippage of the pulley edges.
The disassembly device, which is assisted by a motor pulley, includes an electric rotating component, a lifting platform, and a disassembly component. It achieves precise alignment and height adjustment through a drive screw unit, a slide groove, and a sliding plate structure. The belt and wheel are smoothly separated by a peeling support frame and an arc groove structure. The chain and clamping plate design ensures stable movement.
It achieves stable center alignment and precise disassembly of the motor pulley, avoiding the risk of damage caused by traditional tools and ensuring safe and efficient operation.
Smart Images

Figure CN224527081U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt pulley disassembly technology, and more specifically, to an auxiliary disassembly device for motor belt pulleys. Background Technology
[0002] The motor pulley disassembly aid is a tool specifically designed to solve the problem of disassembling motor pulleys;
[0003] For example, CN103538025A discloses an auxiliary device for disassembling and assembling drive pulleys. This device includes a crossbeam with three holes arranged from left to right. A matching screw is inserted into the middle hole, with a nut at one end and a detachable threaded sleeve at the other. Two bolts are detachably installed in the left and right holes. This device assists in disassembling and assembling drive pulleys, preventing damage to parts caused by forced prying with screwdrivers or similar tools.
[0004] Existing manual puller requires multiple people to install and operate, and the position of the steel claw needs to be repeatedly adjusted, which is time-consuming and labor-intensive. Furthermore, the point contact of the steel claw causes stress concentration, which often leads to deformation of the edge teeth of the pulley and cracking of the weight reduction groove. In addition, the steel claw is prone to slippage when the puller is disengaged from the pulley, resulting in personnel injury or equipment damage.
[0005] Therefore, an auxiliary disassembly device for motor pulleys is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an auxiliary disassembly device for motor pulleys to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary disassembly device for a motor pulley, comprising an electric pulley frame and a pulley disassembly mechanism. The pulley disassembly mechanism includes an electric rotating component, a lifting platform, and a disassembly component. The lifting platform is bolted to the top of the electric rotating component, and the disassembly component is slidably connected to the side of the lifting platform.
[0008] Preferably, the disassembly assembly includes a drive screw unit, a mounting sleeve, a motor connecting bracket, and a docking mounting bracket. The outer diameter surface of the drive screw unit is fitted with the mounting sleeve, the drive end of the drive screw unit is fitted with the motor connecting bracket, and the side of the motor connecting bracket is fitted with the docking mounting bracket.
[0009] Preferably, a peeling support frame is provided at the top of the docking mounting frame, and a mounting column is connected through the contact end of the docking mounting frame and the peeling support frame. The docking mounting frame and the peeling support frame form a rotatable connection structure through the mounting column, and a mandrel is installed at the edge of the docking mounting frame.
[0010] Preferably, a first drive motor is installed above the lifting platform, and two sets of sliding grooves are provided on the side of the lifting platform. Sliding plates are slidably connected in the two sets of sliding grooves, and mounting plates are installed on the two sets of sliding plate supports by bolts.
[0011] Preferably, the electric rotating assembly includes a second drive motor, a rotating disk, a rotating internal gear disk, a chassis, and gears. The output end of the second drive motor is equipped with gears. The rotating disk is disposed below the second drive motor. The rotating internal gear disk is disposed below the rotating disk. The chassis is disposed below the rotating internal gear disk.
[0012] Preferably, the rotating internal gear disk and the chassis are fixedly connected, and the rotating disk and the chassis are movably connected.
[0013] Preferably, the pulley disassembly mechanism includes a base plate, wheel bases, and drive wheels. The wheel bases are bolted to the bottom of the base plate, and drive wheels with brakes are installed under each wheel base.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] Compared with existing technologies, this motor pulley auxiliary disassembly device achieves stable center alignment from the initial stage of operation for the docking function of the mandrel and pulley shaft, avoiding deviations that are prone to occur during manual alignment. The drive screw unit drives the motor connecting frame and docking mounting frame to extend and retract, ensuring that each component can accurately reach the preset position during peeling and disassembly. Then, the sliding groove and sliding plate structure equipped on the lifting platform, together with the drive of the first drive motor, can adjust the height of the disassembly components, and can quickly achieve center alignment regardless of the installation height of the pulley, providing a reliable foundation for subsequent operations. The peeling support bracket can be rotated through the mounting column, and under the drive of the electric rotating component, it can fit into the gap between the pulley and the belt. Its arc groove structure fits the contact arc of the belt and the pulley, and can smoothly separate the belt from the pulley during rotation, avoiding belt wear or pulley damage that may be caused by traditional tools. Furthermore, the clamping plate design can firmly lock into the pulley groove during the pulley disassembly stage, and together with the lifting of the chain and the retraction of the drive screw, it can achieve stable movement of the pulley and eliminate the risk of falling off. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the pulley disassembly mechanism of this utility model.
[0018] Figure 3This is a schematic diagram of the lifting platform of this utility model.
[0019] Figure 4 This is a schematic diagram of the gear structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the disassembly assembly of this utility model.
[0021] The attached figures are labeled as follows: 1. Electric pulley frame; 2. Pulley disassembly mechanism; 3. Base plate; 4. Wheel base; 5. Moving wheel; 6. Electric rotating assembly; 7. Lifting platform; 8. Disassembly assembly; 9. First drive motor; 10. Slide groove; 11. Sliding plate; 12. Mounting plate; 13. Second drive motor; 14. Rotating disk; 15. Rotating internal gear disk; 16. Chassis; 17. Gear; 18. Drive screw unit; 19. Mounting sleeve; 20. Motor connecting frame; 21. Docking mounting frame; 22. Mandrel; 23. Mounting column; 24. Peeling support bracket. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example
[0024] As attached Figures 1 to 5The illustrated motor pulley auxiliary disassembly device includes an electric pulley frame 1 and a pulley disassembly mechanism 2. The pulley disassembly mechanism 2 includes an electric rotating component 6, a lifting platform 7, and a disassembly component 8. The lifting platform 7 is bolted to the top of the electric rotating component 6, and the disassembly component 8 is slidably connected to the side of the lifting platform 7. When the pulley disassembly mechanism 2 is moved to the side of the electric pulley frame 1 to be disassembled, the belt placed on the pulley is first removed. First, the electric rotating component 6 on the pulley disassembly mechanism 2 drives the lifting platform 7 to the corresponding position on the pulley. Then, the lifting platform 7 drives the disassembly component 8 to rise and fall, aligning the center of the disassembly component 8 with the center of the pulley. Then, the docking mounting bracket 21 moves the peeling support bracket 24 via a locked electric push rod, causing the peeling support bracket 24 to unfold. Then, the mandrel 22 of the disassembly component 8 is aligned with the shaft of the pulley. Finally, the motor in the motor connecting frame 20 drives the docking mounting bracket 21 to rotate. The stripping support bracket 24 rotates along the pulley, positioning itself in the slot between the pulley and the belt support. The motor in the motor connector 20 then drives the docking mounting bracket 21 to rotate, causing the stripping support bracket 24 to insert between the pulley and the belt. The stripped belt separates from the pulley via the arc groove on the stripping support bracket 24. The belt is then removed, and a chain is connected to the top of the pulley. The docking mounting bracket 21 is then driven, moving the stripping support bracket 24 to the bottom of the pulley, where a locking plate on the stripping support bracket 24 engages in the groove of the pulley. The chain moves upward, driving the lead screw unit 18 to retract the docking mounting bracket 21. This causes the engaged pulley to move onto the spindle 22 via the shaft housing, and the spindle 22 is supported by the stripping support bracket 24 below, awaiting removal by the electric rotating assembly 6. This completes the replacement of the pulley and belt.
[0025] In a preferred embodiment, the disassembly assembly 8 includes a drive screw unit 18, a mounting sleeve 19, a motor connecting frame 20, and a docking mounting frame 21. The mounting sleeve 19 is mounted on the outer diameter surface of the drive screw unit 18, serving to fix and support the drive screw unit 18. The motor connecting frame 20 is mounted on the drive end of the drive screw unit 18, and the docking mounting frame 21 is mounted on the side of the motor connecting frame 20. The drive screw unit 18, through screw drive, can drive the motor connecting frame 20 and the docking mounting frame 21 to achieve telescopic movement, ensuring displacement accuracy during operation. A peeling support frame is provided at the top of the docking mounting frame 21. A mounting post 23 is connected through the contact end of the docking mounting frame 21 and the peeling support frame, forming a rotating connection structure that allows the peeling support frame to rotate to adapt to different operating angles. A mandrel 22 is mounted on the edge of the docking mounting frame 21, which serves to position and guide the pulley during disassembly, ensuring that the pulley can move accurately along it.
[0026] In a preferred embodiment, a first drive motor 9 is installed above the lifting platform 7, and two sets of sliding grooves 10 are provided on the side of the lifting platform 7. Sliding plates 11 are slidably connected in the two sets of sliding grooves 10, and mounting plates 12 are bolted to the brackets of the two sets of sliding plates 11. When the first drive motor 9 is started, it will drive the sliding plates 11 to slide up and down along the sliding grooves 10, and then drive the disassembly assembly 8 to adjust its height through the mounting plates 12, so as to ensure that the disassembly assembly 8 can be aligned with the center of the pulleys at different heights, laying the foundation for subsequent operations.
[0027] In a preferred embodiment, the electric rotation assembly 6 includes a second drive motor 13, a rotating disk 14, a rotating internal gear disk 15, a chassis 16, and a gear 17. The gear 17 is mounted on the output end of the second drive motor 13. The rotating disk 14 is positioned below the second drive motor 13, the rotating internal gear disk 15 is positioned below the rotating disk 14, and the chassis 16 is positioned below the rotating internal gear disk 15. The rotating internal gear disk 15 and the chassis 16 are fixedly connected, while the rotating disk 14 and the chassis 16 are movably connected. The electric rotation assembly 6 provides the device with... The rotational power is provided by a gear 17 installed at the output end of the second drive motor 13. When the motor is running, it drives the gear 17 to rotate. The rotating disk 14 located below the second drive motor 13 meshes with the rotating internal gear disk 15 below. The rotating internal gear disk 15 is fixedly connected to the chassis 16, while the rotating disk 14 is movably connected to the chassis 16. When the gear 17 rotates, it drives the rotating disk 14 to rotate on the rotating internal gear disk 15, thereby realizing the horizontal rotation adjustment of the upper lifting platform 7 and the entire disassembly assembly 8, which is convenient for connecting pulleys at different positions.
[0028] In a preferred embodiment, the pulley disassembly mechanism 2 includes a base plate 3, wheel bases 4, and moving wheels 5. The wheel bases 4 are bolted to the bottom of the base plate 3, and each wheel base 4 is equipped with a moving wheel 5 with a brake. This design allows the entire disassembly mechanism to be moved to the side of the electric pulley frame 1 where the operation is required, and the braking function of the moving wheels 5 ensures that the device is stably parked during operation, avoiding accidental slippage that could affect the operation.
[0029] In this embodiment, the first drive motor 9, the second drive motor 13, and the drive screw unit 18 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not go into detail here.
[0030] The working process of this utility model is as follows: First, push the pulley disassembly mechanism 2 so that it moves to the side of the electric pulley frame 1 to be disassembled via the moving wheel 5 with a brake at the bottom. Step on the brake to fix the device. Then, perform the belt disassembly operation. The electric rotating component 6 on the pulley disassembly mechanism 2 is activated, and the second drive motor 13 drives the gear 17 to rotate, which in turn drives the rotating disk 14 to rotate, moving the lifting platform 7 to a horizontal position corresponding to the pulley. Subsequently, the first drive motor 9 on the lifting platform 7 works, driving the sliding plate 11 to slide up and down along the slide groove 10, so that the disassembly component 8 is raised and lowered until the center of the disassembly component 8 is aligned with the center of the pulley.
[0031] After alignment, the docking mounting bracket 21 moves the peeling support bracket 24 via a locked electric push rod, aligning the mandrel 22 of the disassembly assembly 8 with the shaft of the pulley. Then, the motor in the motor connecting bracket 20 drives the docking mounting bracket 21 to rotate, causing the peeling support bracket 24 to rotate along the pulley until it is in the slot between the pulley and the belt support. The docking mounting bracket 21 continues to rotate, allowing the peeling support bracket 24 to insert between the pulley and the belt. Using the arc groove on the peeling support bracket 24, the peeled belt is smoothly separated from the pulley, at which point the worker can remove the belt.
[0032] After the belt is removed, a chain is connected to the top of the pulley. Then, the motor in the motor connecting frame 20 drives the docking mounting frame 21 to rotate again, causing the peeling support bracket 24 to move to the bottom of the pulley, and the locking plate on the peeling support bracket 24 is locked in the groove of the pulley. Subsequently, the chain is pulled upward, and at the same time, the drive screw unit 18 is started, causing the docking mounting frame 21 to retract. Under the combined action of the pulling force of the chain and the retraction force of the docking mounting frame 21, the locked pulley moves along the shaft towards the mandrel 22, and finally moves onto the mandrel 22, where it is supported by the peeling support bracket 24 below. Finally, the electric rotating component 6 is started again, driving the entire disassembly component 8 and the disassembled pulley away from the electric pulley frame 1, thereby completing the replacement of the pulley and belt.
Claims
1. An auxiliary disassembly device for a motor pulley, comprising an electric pulley frame (1) and a pulley disassembly mechanism (2), characterized in that: The electric pulley frame (1) is provided with a pulley disassembly mechanism (2) on its side. The pulley disassembly mechanism (2) includes an electric rotating component (6), a lifting platform (7) and a disassembly component (8). The lifting platform (7) is bolted to the top of the electric rotating component (6), and the disassembly component (8) is slidably connected to the side of the lifting platform (7).
2. The motor pulley auxiliary disassembly device according to claim 1, characterized in that: The disassembly assembly (8) includes a drive screw unit (18), a mounting sleeve (19), a motor connecting frame (20), and a docking mounting frame (21). The outer diameter surface of the drive screw unit (18) is fitted with the mounting sleeve (19), the drive end of the drive screw unit (18) is fitted with the motor connecting frame (20), and the side of the motor connecting frame (20) is fitted with the docking mounting frame (21).
3. The motor pulley auxiliary disassembly device according to claim 2, characterized in that: The top of the docking mounting frame (21) is provided with a peeling support frame. The contact ends of the docking mounting frame (21) and the peeling support frame are connected by a mounting column (23). The docking mounting frame (21) and the peeling support frame are connected by the mounting column (23) to form a rotating connection structure. A mandrel (22) is installed at the edge of the docking mounting frame (21).
4. The motor pulley auxiliary disassembly device according to claim 1, characterized in that: A first drive motor (9) is installed above the lifting platform (7). Two sets of sliding grooves (10) are provided on the side of the lifting platform (7). Sliding plates (11) are slidably connected in the two sets of sliding grooves (10). Mounting plates (12) are installed on the brackets of the two sets of sliding plates (11) by bolts.
5. The auxiliary disassembly device for a motor pulley according to claim 1, characterized in that: The electric rotating assembly (6) includes a second drive motor (13), a rotating disk (14), a rotating internal gear disk (15), a chassis (16), and a gear (17). The output end of the second drive motor (13) is equipped with a gear (17). The rotating disk (14) is located below the second drive motor (13). The rotating internal gear disk (15) is located below the rotating disk (14). The chassis (16) is located below the rotating internal gear disk (15).
6. The motor pulley auxiliary disassembly device according to claim 5, characterized in that: The rotating internal gear disk (15) and the chassis (16) are fixedly connected, and the rotating disk (14) and the chassis (16) are movably connected.
7. The motor pulley auxiliary disassembly device according to claim 1, characterized in that: The pulley disassembly mechanism (2) includes a base plate (3), a wheel base (4) and a moving wheel (5). The wheel base (4) is bolted to the bottom of the base plate (3), and a moving wheel (5) with a brake is installed under each wheel base (4).