Puller tool for motor production

Abstract

The utility model relates to motor processing technical field, concretely is a kind of puller frock for motor production, including the hollow structure in main shaft inside;Rotary shaft is coaxial with main shaft, and is arranged in the inside of main shaft, rotary shaft first end is passed through the first end of main shaft after fixedly arranged with the ring of hanging;First screw rod is coaxial with rotary shaft, and is arranged in the inside of main shaft, first screw rod first end is inserted into the first channel set in the second end of rotary shaft, and is connected with the inner wall thread of first channel;Multiple support plates are evenly distributed along the circumferential direction of main shaft, each support plate is connected with the outer surface of main shaft by first connecting member, and each support plate is connected with the second end of first screw rod by second connecting member;Brake assembly is arranged on main shaft;The utility model has effectively reduced the risk of local stress concentration, can effectively reduce the deformation or damage to motor core and the like advantages.

Description

Technical Field

[0001] This utility model relates to the field of motor processing technology, specifically a puller tool for motor production. Background Technology

[0002] In the field of motor manufacturing, the hoisting of motor cores has always faced significant challenges. As the core component of a motor, the motor core typically has an irregular shape, a shifted center of gravity, and a delicate and sensitive surface, making it difficult for traditional hoisting tools to establish a reliable connection directly with it. For example, for hollow or thin-walled motor cores, traditional hoisting methods are more likely to cause uneven local stress, leading to structural deformation and potentially causing crush damage to the windings and insulation layers of the motor core. Utility Model Content

[0003] In view of this, the present invention provides a puller tooling for motor production, which aims to solve the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a puller tooling for motor manufacturing, comprising:

[0005] The main shaft has a hollow internal structure.

[0006] A rotating shaft, coaxial with the main shaft and rotatably mounted inside the main shaft, has a hanging ring fixedly mounted on its first end after passing through the first end of the main shaft;

[0007] The first screw is coaxial with the rotating shaft and is disposed inside the main shaft. The first end of the first screw extends into the first channel provided at the second end of the rotating shaft and is threadedly connected to the inner wall of the first channel.

[0008] Multiple support plates are evenly distributed along the circumference of the main shaft. Each support plate is connected to the outer surface of the main shaft through a first connector, and each support plate is connected to the second end of the first screw through a second connector. When the rotating shaft rotates, the first screw moves along the axial direction of the main shaft. When the first screw moves, it drives the multiple support plates to move synchronously through the multiple second connectors. With the cooperation of the multiple first connectors, the multiple support plates move synchronously closer to or further away from the main shaft.

[0009] A braking assembly, mounted on the main shaft, is used to brake the rotating shaft.

[0010] A further improvement of this utility model is that the first connecting member includes a first connecting rod, the first end of the first connecting rod is hinged to the outer surface of the main shaft, and the second end of the first connecting rod is hinged to the support plate.

[0011] A further improvement of this utility model is that the main shaft is provided with a plurality of elongated slots near the second end, the plurality of elongated slots being evenly distributed along the circumference of the main shaft, each elongated slot being parallel to the corresponding support plate, the second connecting member including a second connecting rod, the first end of which is hinged to the second end of the first screw, and the second end of the second connecting rod passing through the elongated slot and then hinged to the support plate.

[0012] A further improvement of this utility model is that the braking assembly includes:

[0013] A brake cylinder is coaxial with the main shaft, with its first end fixedly connected to the main shaft and its second end connected to the rotating shaft.

[0014] A ratchet is fixed on a rotating shaft inside the brake cylinder;

[0015] A pawl is rotatably disposed inside the brake cylinder. A spring is provided on the lower surface of its first end. The free end of the spring is connected to the support plate inside the brake cylinder, and the second end is adapted to the ratchet.

[0016] The lifting assembly is connected to the pawl and the support plate respectively, and is used to drive the pawl to disengage from the ratchet.

[0017] A further improvement of this utility model is that the lifting assembly includes:

[0018] The slider is slidably disposed in the groove on the first end of the brake cylinder, the end of the support plate is fixedly connected to the slider, and the middle part of the pawl is rotated on the slider;

[0019] The second screw has its first end connected to the slider shaft, and its second end connected to and passing through the brake thread, and a rotating wheel is fixed thereon.

[0020] A further improvement of this utility model is that the outer surface of the support plate is arc-shaped.

[0021] A further improvement of this invention is that the arc shape is coated with rubber.

[0022] A further improvement of this invention is that the rubber is provided with anti-slip patterns.

[0023] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0024] This utility model provides a puller tooling for motor production. The first screw is driven to move axially by a rotating shaft, which drives multiple support plates to open and close synchronously, so as to achieve adaptive support for the inner hole of motor core with different inner diameters. The design of the support plates with uniform circumferential distribution ensures that the support force is evenly distributed along the circumference of the inner hole of the motor core, effectively reducing the risk of local stress concentration. Compared with the prior art, it can effectively reduce the deformation or damage to the motor core. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the puller tool described in this utility model;

[0027] Figure 2 This is a schematic diagram of the rotating shaft structure of the puller tool described in this utility model;

[0028] Figure 3 This is a schematic diagram of the braking component of the puller tool described in this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10-Main shaft, 101-Long slot, 11-Rotating shaft, 111-Hanging ring, 112-First channel, 12-First screw, 121-Second connecting rod, 13-Support plate, 131-Arc shape, 14-First connecting rod, 20-Brake assembly, 21-Brake cylinder, 22-Ratchet, 23-Pawl, 24-Spring, 25-Support plate, 30-Lifting assembly, 31-Slider, 32-Slide groove, 33-Second screw, 34-Rotating wheel. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details hindering the description of the present invention.

[0032] This utility model provides a puller tooling for motor manufacturing, as detailed in the attached instruction manual. Figure 1 To be continued Figure 3 It can be seen that a puller tooling for motor production mainly includes the following parts or components: main shaft 10, rotating shaft 11, first screw 12, support plate 13, and braking assembly 20.

[0033] In this invention, the main shaft 10 has a hollow structure; the rotating shaft 11 is coaxial with the main shaft 10 and is rotatably disposed inside the main shaft 10, with a hanging ring 111 fixedly disposed at the first end of the rotating shaft 11 after passing through the first end of the main shaft 10; the first screw 12 is coaxial with the rotating shaft 11 and is disposed inside the main shaft 10, with the first end of the first screw 12 extending into the first channel 112 disposed at the second end of the rotating shaft 11 and threadedly connected to the inner wall of the first channel 112; multiple support plates 13 are evenly distributed along the circumference of the main shaft 10, and each support plate 13 has Each support plate 13 is connected to the outer surface of the main shaft 10 via a first connector, and each support plate 13 is connected to the second end of the first screw 12 via a second connector. When the rotating shaft 11 rotates, the first screw 12 moves along the axial direction of the main shaft 10. When the first screw 12 moves, it drives multiple support plates 13 to move synchronously through multiple second connectors, and with the cooperation of multiple first connectors, the multiple support plates 13 move synchronously closer to or further away from the main shaft 10. The braking assembly 20 is provided on the main shaft 10 and is used to brake the rotating shaft 11. The outer surface of the support plate 13 is arc-shaped 131.

[0034] Insert the entire tooling into the inner hole of the motor core along the axial direction, ensuring that the outer surface of the arc-shaped 131 of the support plate 13 is initially aligned with the inner hole wall. Manually rotate the hanging ring 111 to drive the rotating shaft 11, which is coaxially arranged with the main shaft 10, to rotate inside the main shaft 10. Since the threaded channel inside the rotating shaft 11 cooperates with the first screw 12, the rotation of the rotating shaft 11 drives the first screw 12 to move axially along the main shaft 10. The movement of the first screw 12 is transmitted to each support plate 13 through the first connector and the second connector. Under the combined action of the first connector and the second connector, they open outward synchronously until the outer surface of the arc-shaped 131 is tightly attached to the inner hole wall of the motor core. At this time, operate the braking assembly 20 to lock the rotating shaft 11 to prevent it from rotating in the opposite direction, thereby maintaining the clamping state of the support plate 13. After the external lifting device is securely connected to the hanging ring 111, start the lifting equipment. The tension is transmitted to the entire fixture through the hanging ring 111, rotating shaft 11, and main shaft 10. Because multiple support plates 13 are evenly distributed and synchronously clamp the inner hole wall, the motor core is subjected to a uniform radial force, preventing localized deformation. After being smoothly hoisted to the target position, the motor core is positioned. When it is necessary to release the fixture, the unlocking mechanism of the braking assembly 20 is operated to release the lock on the rotating shaft 11. The hanging ring 111 is rotated in the opposite direction, driving the first screw 12 to move in the opposite direction, causing the support plates 13 to synchronously retract inward through the first and second connecting parts until they detach from the inner hole wall of the motor core. Finally, the entire fixture is axially pulled out of the inner hole, completing the hoisting cycle. This effectively reduces the risk of localized stress concentration and can effectively reduce deformation or damage to the motor core.

[0035] Specifically, the arc 131 is coated with rubber (not shown in the figure). The rubber material has good elasticity and cushioning properties, which can effectively absorb the impact and vibration generated during the hoisting process when the tooling clamps the motor core, avoid direct contact between the surface of the motor core and the rigid support plate 13, prevent the precision windings and insulation layers from being damaged by compression and friction, and ensure the structural integrity and performance stability of the motor core.

[0036] The rubber surface has anti-slip patterns (not shown in the figure). The presence of anti-slip patterns significantly increases the friction between the support plate 13 and the inner wall of the motor core. Even under complex conditions such as oil stains and moisture on the surface of the motor core, it can firmly grip the surface, preventing the risk of slippage or falling off during hoisting and ensuring operational safety.

[0037] Specifically, the first connecting member includes a first connecting rod 14, the first end of which is hinged to the outer surface of the main shaft 10, and the second end of which is hinged to the support plate 13.

[0038] Specifically, the spindle 10 is provided with a plurality of elongated slots 101 near the second end. The plurality of elongated slots 101 are evenly distributed along the circumference of the spindle 10. Each elongated slot 101 is parallel to the corresponding support plate 13. The second connecting member includes a second connecting rod 121, the first end of which is hinged to the second end of the first screw 12. The second end of the second connecting rod 121 passes through the elongated slot 101 and is hinged to the support plate 13.

[0039] As one embodiment, in conjunction with the appendix to the specification Figure 3 It is known that the braking assembly 20 includes a brake cylinder 21, coaxial with the main shaft 10. The first end of the brake cylinder 21 is fixedly connected to the main shaft 10, and the second end of the brake cylinder 21 is connected to the rotating shaft 11. A ratchet 22 is fixedly mounted on the rotating shaft 11 inside the brake cylinder 21. A pawl 23 is rotatably mounted inside the brake cylinder 21. A spring 24 is provided on the lower surface of its first end. The free end of the spring 24 is connected to the support plate 25 inside the brake cylinder 21, and the second end is adapted to the ratchet 22. A lifting assembly 30 is connected to the pawl 23 and the support plate 25 respectively, and is used to drive the pawl 23 to disengage from the ratchet 22. The lifting assembly 30 includes a slider 31, which slides in the groove 32 on the first end of the brake cylinder 21. The end of the support plate 25 is fixedly connected to the slider 31, and the middle part of the pawl 23 is rotated on the slider 31. The first end of the second screw 33 is connected to the rotating shaft of the slider 31, and the second end of the second screw 33 is connected to the brake through thread and passes through, and a rotating wheel 34 is fixedly mounted thereon.

[0040] When the lock is released, rotating the wheel 34 clockwise drives the second screw 33 to move axially, causing the slider 31 to slide upward within the groove 32. As the slider 31 rises, the support plate 25 moves upward accordingly, and the spring 24 and pawl 23 move upward synchronously. The second end of the pawl 23 disengages from the tooth groove of the ratchet 22, releasing the lock on the rotating shaft 11. At this time, the rotating shaft 11 can rotate freely, and the operator can drive the first screw 12 to move by rotating the hanging ring 111, causing the support plate 13 to retract to its minimum diameter, facilitating the removal of the inner hole of the motor core by the tooling.

[0041] When the rotating shaft 11 rotates in one direction, the counterclockwise rotating wheel 34 drives the second screw 33 to move axially, causing the slider 31 to slide downwards in the groove 32 until the second end of the pawl 23 enters the tooth groove of the ratchet 22. Then, the hanging ring 111 rotates counterclockwise, causing the first screw 12 to move towards the second end of the main shaft 10 through threaded transmission, causing the support plate 13 to open outwards until it clamps the inner hole of the motor core. During the counterclockwise rotation of the rotating shaft 11, the ratchet 22 moves accordingly, but the pawl 23 always remains in contact with the ratchet 22 under the action of the spring 24. When the hanging ring 111 stops rotating, the reverse rotation of the ratchet 22 is blocked by the pawl 23, achieving one-way locking and preventing the support plate 13 from loosening due to vibration or external force.

[0042] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A puller tool for motor production, characterized by, include: The main shaft has a hollow internal structure. A rotating shaft, coaxial with the main shaft and rotatably mounted inside the main shaft, has a hanging ring fixedly mounted on its first end after passing through the first end of the main shaft; The first screw is coaxial with the rotating shaft and is disposed inside the main shaft. The first end of the first screw extends into the first channel provided at the second end of the rotating shaft and is threadedly connected to the inner wall of the first channel. Multiple support plates are evenly distributed along the circumference of the main shaft. Each support plate is connected to the outer surface of the main shaft through a first connector, and each support plate is connected to the second end of the first screw through a second connector. When the rotating shaft rotates, the first screw moves along the axial direction of the main shaft. When the first screw moves, it drives the multiple support plates to move synchronously through the multiple second connectors. With the cooperation of the multiple first connectors, the multiple support plates move synchronously closer to or further away from the main shaft. A braking assembly, mounted on the main shaft, is used to brake the rotating shaft.

2. The puller tooling for motor production according to claim 1, characterized in that, The first connecting member includes a first connecting rod, the first end of which is hinged to the outer surface of the main shaft, and the second end of which is hinged to the support plate.

3. The puller tooling for motor production according to claim 1, characterized in that, The main shaft is provided with a plurality of elongated slots near the second end. The plurality of elongated slots are evenly distributed along the circumference of the main shaft. Each elongated slot is parallel to the corresponding support plate. The second connecting member includes a second connecting rod, the first end of which is hinged to the second end of the first screw. The second end of the second connecting rod passes through the elongated slot and is hinged to the support plate.

4. The puller tooling for motor production according to claim 1, characterized in that, The braking assembly includes: A brake cylinder is coaxial with the main shaft, with its first end fixedly connected to the main shaft and its second end connected to the rotating shaft. A ratchet is fixed on a rotating shaft inside the brake cylinder; A pawl is rotatably disposed inside the brake cylinder. A spring is provided on the lower surface of its first end. The free end of the spring is connected to the support plate inside the brake cylinder, and the second end is adapted to the ratchet. The lifting assembly is connected to the pawl and the support plate respectively, and is used to drive the pawl to disengage from the ratchet.

5. The puller tooling for motor production according to claim 4, characterized in that, The lifting assembly includes: The slider is slidably disposed in the groove on the first end of the brake cylinder, the end of the support plate is fixedly connected to the slider, and the middle part of the pawl is rotated on the slider; The second screw has its first end connected to the slider shaft, and its second end connected to and passing through the brake thread, and a rotating wheel is fixed thereon.

6. The puller tooling for motor production according to claim 1, characterized in that, The outer surface of the support plate is arc-shaped.

7. A puller fixture for motor manufacturing according to claim 6, characterized in that, The arc is coated with rubber.

8. A puller tooling for motor manufacturing according to claim 7, characterized in that, The rubber has anti-slip patterns.

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