A device for hoisting motor stators

Abstract

This utility model belongs to the technical field of stator hoisting equipment, and discloses a device for hoisting motor stators, including a workbench. An operating hole is provided on the upper surface of the workbench. Several legs are spaced along the operating hole on the upper surface of the workbench, with the other end of each leg positioned above the operating hole. Several guide rails are also provided on the lower surface of the workbench. A hoisting assembly is inserted into the operating hole. The hoisting assembly includes a connecting rod with a lifting ring at its upper end. A protective sleeve is connected to the other end of the connecting rod, and a protective plate is connected to the other end of the protective sleeve. Several limiting plates are provided on the side of the protective plate, the number of which is the same as the number of legs, and the limiting plates match the legs. The stator assembly is placed above the operating hole. This device can stably hoist the stator assembly and is suitable for hoisting large stators.

Description

Technical Field

[0001] This utility model relates to the technical field of stator hoisting equipment, specifically a device for hoisting motor stators. Background Technology

[0002] At present, increasing power and speed has always been an important direction in the development of motors. However, the stator of high-power high-speed motors has problems such as large size, heavy weight, and easy warping and deformation of the silicon steel sheets in the iron core, which makes the hoisting of the stator particularly difficult during the installation process.

[0003] In existing technologies, the heat dissipation structure of motor stator laminations is mostly developed based on the large-pitch stator laminations of conventional speed or high-speed motors. Patent publication number CN202729548U discloses a lifting tool for hoisting stator cores, including a hook, a pneumatic cylinder, a triangular plate, nylon blocks, wedges, a conical slider, and a trapezoidal positioning block. The bottom plate of the hook is locked together with the upper end of the pneumatic cylinder and the lower end of the pneumatic cylinder and the triangular plate by long bolts on both sides. The piston rod of the pneumatic cylinder is screwed into the upper end of the conical slider. One end of the connecting rod on both sides of the conical slider is connected to the triangular plate by a pin, and the other end is connected to the wedge by a pin. The nylon blocks and wedges on both sides of the conical slider are connected and fixed together by hexagonal bolts. The wedges on both sides are locked and fixed to the conical slider by trapezoidal positioning blocks and screws. The trapezoidal positioning blocks are fitted into the trapezoidal grooves of the conical slider. However, the above technology still has certain defects and cannot be applied to the hoisting of larger stators. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide a device for hoisting motor stators, which can smoothly lift stator assemblies and is suitable for hoisting large stators.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A device for hoisting a motor stator includes a workbench with an operating hole on its upper surface. Several legs are spaced along the operating hole on the upper surface of the workbench, with the other end of each leg positioned above the operating hole. Several guide rails are also provided on the lower surface of the workbench. A hoisting assembly is inserted into the operating hole. The hoisting assembly includes a connecting rod with a lifting ring at its upper end. A protective sleeve is connected to the other end of the connecting rod, and a protective plate is connected to the other end of the protective sleeve. Several limiting plates are provided on the side of the protective plate, the number of which is the same as the number of legs, and the limiting plates match the legs. A stator assembly is placed above the operating hole.

[0006] The following are further optimizations of the above technical solution by this utility model: The upper surface of the workbench is also provided with a slide plate, which includes a ramp and a flat plate. The flat plate has an arc-shaped hole, which is located near the operation hole and matches the size of the operation hole.

[0007] Further optimization: The workbench is also equipped with a stator limiting baffle, which is located on the side away from the slide plate and close to the operating hole. Multiple pads are also provided on the stator limiting baffle.

[0008] Further optimization: The guide rail is located near the operating hole, and the guide rail matches the limiting plate and the support leg.

[0009] Further optimization: Four caster adjustment blocks are also provided below the workbench.

[0010] This utility model adopts the above-mentioned technical solution, which is ingenious and reasonable in structure. By setting large rounded corners at the contact positions of the support feet, pads and limiting plates with the stator assembly, it can avoid damage to the enameled wire and silicon steel sheets of the stator assembly during sliding. By guiding and limiting the position of the limiting plate through the guide rail and support feet, the position of the lifting assembly can be restricted, thereby effectively ensuring the stability during lifting and making it convenient to use.

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram showing the cooperation between the workbench and the lifting assembly in an embodiment of this utility model; Figure 3 This is a side view of the overall structure in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the lifting assembly in an embodiment of the present invention; Figure 5 This is a bottom view of the overall structure in an embodiment of this utility model; Figure 6 for Figure 2 A magnified view of a portion of point A in the middle.

[0013] In the diagram: 1. Workbench; 101. Operating hole; 2. Guide rail; 3. Support leg; 4. Stator assembly; 5. Lifting assembly; 501. Lifting ring; 502. Connecting rod; 503. Protective sleeve; 504. Protective plate; 5040. Limiting plate; 6. Slide plate; 601. Ramp section; 602. Flat plate section; 7. Stator limiting baffle; 8. Pad block; 9. Caster adjusting block. Detailed Implementation

[0014] like Figure 1-6As shown: A device for hoisting a motor stator includes a workbench 1. The upper surface of the workbench 1 has an operating hole 101. Several support legs 3 are spaced along the operating hole 101 on the upper surface of the workbench 1. The other end of each support leg 3 is positioned above the operating hole 101. Several guide rails 2 are also provided on the lower surface of the workbench 1. A hoisting assembly 5 is also inserted into the operating hole 101. The hoisting assembly 5 includes a connecting rod 502. A lifting ring 501 is provided at the upper end of the connecting rod 502. A protective sleeve 503 is connected to the other end of the connecting rod 502. A protective plate 504 is connected to the other end of the protective sleeve 503. Several limiting plates 5040 are provided on the side of the protective plate 504. The number of limiting plates 5040 is the same as that of the support legs 3, and the limiting plates 5040 match the support legs 3. A stator assembly 4 is also placed above the operating hole 101.

[0015] This design allows the lifting assembly 5 to move in and out of the operating hole 101, and the limiting plate 5040 to pass through the gap between the legs 3, making it convenient to use.

[0016] The upper surface of the workbench 1 is also provided with a slide plate 6. The slide plate 6 includes a ramp portion 601 and a flat plate portion 602. The flat plate portion 602 has an arc-shaped hole, which is located near the operation hole 101 and matches the size of the operation hole 101.

[0017] In this embodiment, both the ramp portion 601 and the flat plate portion 602 are fixed to the workbench 1 by bolts. The sliding plate 6 is used to guide the stator assembly 4. That is, after the previous process is completed, the stator assembly 4 to be hoisted slides into the upper part of the operating hole 101 through the sliding plate 6, which facilitates the next hoisting work and makes it convenient to use.

[0018] The workbench 1 is also provided with a stator limiting baffle 7, which is located on the side away from the slide plate 6 and close to the operation hole 101. Multiple pads 8 are also provided on the stator limiting baffle 7.

[0019] With this design, after the stator assembly 4 slides down from the slide plate 6, the stator limiting baffle 7 will limit the stator assembly 4 to ensure that the stator assembly 4 is in a suitable lifting position. The pad block 8 is used to buffer and protect the stator assembly 4 to prevent the stator assembly 4 from directly colliding with the stator limiting baffle 7 after sliding down from the slide plate 6, which would cause damage to the stator assembly 4.

[0020] The guide rail 2 is located near the operating hole 101, and the guide rail 2 is matched with the limiting plate 5040 and the support leg 3.

[0021] With this design, when the lifting assembly 5 moves vertically in the operating hole 101, the limiting plate 5040 cooperates with the guide rail 2 to ensure that the lifting assembly 5 does not deviate from the track when it is raised or lowered, so that the limiting plate 5040 can be raised or lowered smoothly along the guide rail 2 and the support leg 3, ensuring that the stator assembly 4 is more stable during lifting and convenient to use.

[0022] In this embodiment, the support leg 3, pad block 8 and limiting plate 5040 are all provided with large rounded corners at the positions where they contact the stator assembly 4. This design can prevent the stator assembly 4 from damaging the enameled wire and silicon steel sheet during sliding.

[0023] Four caster adjustment blocks 9 are also provided below the workbench 1.

[0024] This design allows for easy movement and fixation of the workbench 1.

[0025] In the initial position, the lifting assembly 5 is inside the workbench 1. The equipment from the previous process places the stator assembly 4 on the slide plate 6. Then, under the action of gravity, the stator assembly 4 slides from the slide plate 6 to above the operating hole 101. At this time, the stator limiting baffle 7 acts as a limit to ensure that the stator assembly 4 slides to the optimal position for lifting. Then, the lifting equipment is connected to the lifting ring 501 in the lifting assembly 5, and the lifting equipment is started to lift the lifting assembly 5. During this process, the limiting plate 5040 remains stable under the action of the guide rail 2 and the support leg 3 until the lifting assembly 5 is pulled out of the operating hole 101. At this time, the limiting plate 5040 abuts against the bottom of the stator assembly 4. The lifting assembly 5 continues to rise under the action of the lifting equipment. The stator assembly 4 is lifted with the support of the limiting plate 5040 for easy use.

[0026] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A device for hoisting motor stators, characterized in that: The system includes a workbench (1), with an operating hole (101) on its upper surface. Several support legs (3) are spaced along the operating hole (101) on the upper surface of the workbench (1), with the other end of each support leg (3) positioned above the operating hole (101). Several guide rails (2) are also provided on the lower surface of the workbench (1). A lifting assembly (5) is inserted into the operating hole (101). The lifting assembly (5) includes a connecting rod (502) for connecting... A lifting ring (501) is provided at the upper end of the rod (502), and a protective sleeve (503) is connected to the other end of the connecting rod (502). A protective plate (504) is connected to the other end of the protective sleeve (503). Several limiting plates (5040) are provided on the side of the protective plate (504). The number of limiting plates (5040) is the same as that of the support leg (3), and the limiting plates (5040) match the support leg (3). A stator assembly (4) is also placed above the operating hole (101).

2. The device for hoisting a motor stator according to claim 1, characterized in that: The upper surface of the workbench (1) is also provided with a slide plate (6). The slide plate (6) includes a ramp (601) and a flat plate (602). The flat plate (602) has an arc-shaped hole, which is located near the operation hole (101) and matches the size of the operation hole (101).

3. The device for hoisting a motor stator according to claim 2, characterized in that: The workbench (1) is also provided with a stator limiting baffle (7), which is located on the side away from the slide plate (6) and close to the operation hole (101). Multiple pads (8) are also provided on the stator limiting baffle (7).

4. The device for hoisting a motor stator according to claim 3, characterized in that: The guide rail (2) is located near the operating hole (101) and is matched with the limiting plate (5040) and the support leg (3).

5. The device for hoisting a motor stator according to claim 4, characterized in that: Four caster adjustment blocks (9) are also provided below the workbench (1).

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