Sleeve pulling device of motor rotor

Abstract

The utility model relates to and discloses a sleeve pulling device for a motor rotor, which comprises a rack, a vibration disc and an operation arm are arranged on the rack, and the side wall of the vibration disc is connected with a conveying mechanism; the operation arm is used for grabbing the rotor conveyed from the vibration disc through the conveying mechanism. The sleeve pulling mechanism and the collecting mechanism are both arranged on the machine frame, the sleeve pulling mechanism is used for separating a rotating shaft of the rotor from magnetic steel, and the collecting mechanism collects the separated rotor and the magnetic steel respectively. The utility model aims to provide the sleeve pulling device for the motor rotor, so as to solve the problems that the existing device is low in automation and cannot adapt to batch operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor rotor technical field especially relates to a motor rotor's pull sleeve device. BACKGROUND

[0002] In the motor production or maintenance process, the rotor is one of the core components of the motor, and its manufacturing precision and assembly quality directly affect the overall performance of the motor. The rotor is usually composed of a rotating shaft and a magnetic steel sleeve on the rotating shaft. In some cases, such as design changes of the rotor, replacement of damaged magnetic steel, or recycling of the rotor, the magnetic steel must be separated from the rotating shaft, which is called "pull sleeve" operation. The quality of the pull sleeve operation directly affects the reuse value of the rotor and the maintenance efficiency of the motor. If the magnetic steel cannot be completely and effectively separated from the rotating shaft, it may cause damage to the magnetic steel, wear of the rotating shaft, and even affect the subsequent assembly of the rotor and the performance of the motor.

[0003] Traditional motor rotor pull sleeve devices have some obvious shortcomings in practical application. First, many traditional devices use manual operation or simple mechanical structures, and the pull sleeve process relies on manual intervention, which is inefficient and difficult to meet the needs of mass production. For example, on some production lines, operators need to manually place the rotor on the pull sleeve device and then manually operate the device to pull the sleeve, which is time-consuming and labor-intensive, and is prone to unstable pull sleeve quality due to human factors, such as magnetic steel damage or rotating shaft wear. In addition, the pull sleeve mechanism of the traditional device is relatively simple in design, and can usually only handle a single type of rotor, lacking flexibility and unable to adapt to different specifications and models of rotors, resulting in poor device applicability, low device utilization, and insufficient automation in the collection process, requiring manual secondary processing and increasing operational complexity. SUMMARY

[0004] The utility model aims at providing a kind of motor rotor's pull sleeve device to solve the problems of low automation and inability to adapt to batch operation existing in prior art device.

[0005] The utility model realizes by the following technical scheme:

[0006] A kind of motor rotor's pull sleeve device, including rack, the rack is equipped with vibration disc and operating arm, the side wall of the vibration disc is connected with conveying mechanism;The operating arm is used to grab the rotor transmitted from the vibration disc via the conveying mechanism;It further includes pull sleeve mechanism and collection mechanism, which are all arranged on the rack, the pull sleeve mechanism is used to separate the rotating shaft of the rotor and the magnetic steel, and the collection mechanism collects the separated rotor and magnetic steel respectively.

[0007] Preferably, the conveying mechanism includes a conveying pipe connected to the vibration disc, one end of the conveying pipe is in communication with the inner wall of the vibration disc, and the other end of the conveying pipe is connected with a placement table.

[0008] Preferably, the base is arranged on the frame, and the operating arm is a PPU manipulator arranged on the base.

[0009] Preferably, the sleeve pulling mechanism comprises a connecting rod and a third cylinder, the third cylinder is internally provided with a third piston, the connecting rod is arranged on the frame, one end of the connecting rod is connected with an end of the third piston, and the other end of the connecting rod is connected with a movable sleeve pulling clamp; the frame is further provided with a rotating shaft sliding table, the rotating shaft sliding table is provided with a stabilizing block and a fixed sleeve pulling clamp, the fixed sleeve pulling clamp is fixedly connected with the stabilizing block; the fixed sleeve pulling clamp and the movable sleeve pulling clamp are parallel to each other; the fixed sleeve pulling clamp and the movable sleeve pulling clamp are both provided with a groove for placing a rotor.

[0010] Preferably, each groove is provided with an arc-shaped transition groove.

[0011] Preferably, the collecting mechanism comprises a first cylinder arranged on the frame, the first cylinder is internally provided with a first piston rod, an outer end of the first piston rod is provided with a first push plate, and an axis of the first piston rod is perpendicular to an axis of the connecting rod; along an extension direction of the first piston rod, the frame is further provided with a magnetic steel collecting disc for collecting magnetic steels falling from the connecting rod surface pushed by the first push plate; along an extension direction of the third piston, the frame is further provided with a rotating shaft collecting disc for collecting rotating shafts falling from the rotating shaft sliding table; the frame is further provided with a supporting seat, the supporting seat is provided with a second cylinder, the second cylinder is internally provided with a second piston rod, an outer end of the second piston rod is connected with a second push plate, the second push plate is provided with a push rod, and the push rod is used for ejecting the rotating shaft stuck in the groove so as to make the rotating shaft fall from the rotating shaft sliding table.

[0012] Preferably, the frame is further provided with a magnetic steel sliding table, the magnetic steel sliding table is provided below a magnetic steel collecting disc, and the magnetic steel collecting disc is arranged on the frame.

[0013] Preferably, along a falling direction of the rotating shaft, the frame is further provided with a first side plate on both sides of the rotating shaft sliding table; along a falling direction of the magnetic steel, the frame is further provided with a second side plate on both sides of the magnetic steel sliding table.

[0014] Preferably, the vibrating disc, the operating arm, the conveying mechanism, the sleeve pulling mechanism and the collecting mechanism jointly form a sleeve pulling assembly, and the frame is provided with two sleeve pulling assemblies.

[0015] Preferably, the placing table is symmetrically provided with two limiting blocks.

[0016] Compared with existing technologies, this invention has the following advantages and beneficial effects: By setting a vibratory feeder, operating arm, conveying mechanism, sleeve-removing mechanism, and collecting mechanism on the frame, this invention achieves automatic sleeve removal and separation collection of the motor rotor. This solution utilizes automatic feeding via the vibratory feeder, smooth conveying via the conveying mechanism, precise gripping and placement via the operating arm, automatic separation of the rotor shaft and magnet via the sleeve-removing mechanism, and automatic collection of the magnet and rotor shaft via the collecting mechanism. The entire process is highly automated, avoiding manual intervention and improving sleeve-removing efficiency and accuracy. Simultaneously, the device has a compact structure and is easy to operate, effectively reducing labor costs and operational errors, ensuring sleeve-removing quality and production efficiency, and meeting the needs of mass production. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a single pull-out assembly of this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A;

[0022] Figure 5 This is a schematic diagram of the pull-out mechanism of this utility model, intended to show the clamping position of the rotor;

[0023] Figure 6 This is a side view of a single pull-out assembly of this utility model;

[0024] Figure 7 This is a schematic diagram showing the installation positions of the vibratory feeder, conveying pipe, and placement platform of this utility model.

[0025] The reference numerals in the attached figures represent:

[0026] 1. Frame; 2. Vibratory feeder; 201. Conveying pipe; 202. Placement platform; 2021. Limiting block; 203. Base; 3. Base; 301. Operating arm; 4. Connecting rod; 401. Third piston rod; 402. Movable pull-out clamp; 403. Stabilizing block; 404. Rotary shaft slide; 405. Third cylinder; 406. Fixed pull-out clamp; 5. Second cylinder; 501. Second push block; 502. Push rod; 6. First cylinder; 601. First push plate; 602. Magnetic slide; 7. Rotary shaft collecting plate; 8. Magnetic collecting plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present application. The illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application. It should be noted that the present application has been in the actual research and development stage.

[0028] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the usual meaning understood by a person of ordinary skill in the art to which the present application belongs. The terms “first”, “second” and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms “include” or “contain” and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.

[0029] The traditional motor rotor sleeve pulling device has problems such as low efficiency and dependence on manual operation, which is difficult to meet the needs of mass production. For example, the operator needs to manually place and operate the rotor, which is time-consuming and easy to cause damage to the magnetic steel or wear of the rotating shaft. In addition, the traditional device sleeve pulling mechanism is simple in design and can only handle single type of rotor, which has poor equipment applicability, low utilization rate, and manual intervention in the collection process, increasing the operation complexity.

[0030] Embodiment 1:

[0031] As shown in Figures 1 to 4 and Figure 6 A motor rotor sleeve pulling device includes a rack 1, the rack 1 is provided with a vibration disc 2 and an operating arm 301, the side wall of the vibration disc 2 is connected with a conveying mechanism; the operating arm 301 is used for grabbing the rotor transmitted from the vibration disc 2 through the conveying mechanism; and the device further includes a sleeve pulling mechanism and a collecting mechanism, both of which are arranged on the rack 1, the sleeve pulling mechanism is used for separating the rotating shaft and the magnetic steel of the rotor, and the collecting mechanism collects the separated rotor and magnetic steel respectively.

[0032] It should be noted that the vibrating disc 2 is installed on the rack through the base 203, and the vibrating disc 2 functions to separate the stacked or scattered rotors one by one through high-frequency vibration and orderly deliver them into the conveying pipe 201, improving the feeding efficiency. The operating arm 301 is responsible for accurately grabbing the rotor from the end of the conveying pipe 201 or the placing table 202 and placing it into the sleeve pulling mechanism. The operating arm 301 needs to have high-precision positioning and clamping capability to ensure that the rotor does not deviate or fall during the sleeve pulling process. The conveying mechanism (conveying pipe 201) functions to stably convey the rotor from the vibrating disc 2 to the working area of the operating arm 301.

[0033] The vibrating disc 2 and the operating arm 301 work cooperatively to realize automatic feeding and positioning of the rotor. The vibrating disc 2 separates the rotors one by one through high-frequency vibration and delivers them into the conveying pipe 201, and the operating arm 301 grabs the rotor from the end of the conveying pipe 201 or the placing table 202 and places it into the sleeve pulling mechanism. The whole process has high automation degree, reduces manual intervention, and improves production efficiency. The precise positioning and clamping capability of the operating arm 301 ensure the stability of the rotor during the sleeve pulling process, avoiding sleeve pulling failure or magnetic steel damage caused by rotor deviation.

[0034] As shown in Figure 7 Preferably, the conveying mechanism comprises the conveying pipe 201 connected to the vibrating disc 2, one end of the conveying pipe 201 is communicated with the inner wall of the vibrating disc 2, and the other end of the conveying pipe 201 is connected with the placing table 202.

[0035] The conveying pipe 201 smoothly conveys the rotor from the vibrating disc 2 to the placing table 202, avoiding the rotor from being stuck or colliding during the conveying process. The limiting block 2021 on the placing table 202 effectively prevents the rotor from moving during the placing and grabbing process, ensuring that the operating arm 301 can accurately grab the rotor, and together ensuring the smooth operation of the sleeve pulling operation, improving the sleeve pulling quality and production efficiency.

[0036] Preferably, the rack 1 is provided with a base 3, and the operating arm 301 is a PPU manipulator, and the PPU manipulator is arranged on the base 3.

[0037] The PPU manipulator is a kind of high-precision automatic pick-and-place equipment, which is responsible for accurately grabbing the rotor from the end of the vibrating disc 2 or the conveying pipe 201 and placing it between the fixed sleeve pulling clamp 406 and the movable sleeve pulling clamp 402 of the sleeve pulling mechanism. The base 3 is the mounting platform of the PPU manipulator, providing stable support and positioning to ensure that the operating arm 301 maintains accurate repeat positioning accuracy during operation.

[0038] The PPU manipulator grabs the rotor from the placement table 202 or the end of the conveying pipe 201 and places it between the fixed sleeve pulling clamp 406 and the movable sleeve pulling clamp 402 of the sleeve pulling mechanism. The high precision and high stability of the PPU manipulator ensure the accurate positioning of the rotor during the sleeve pulling process, avoiding sleeve pulling failure or magnet damage caused by rotor deviation. The stable support of the base 3 further improves the operation precision and reliability of the operation arm 301.

[0039] As Figure 5 shown, the preferred solution further includes that the sleeve pulling mechanism includes a connecting rod 4 and a third cylinder 405, the third cylinder 405 is provided with a third piston, the connecting rod 4 is arranged on the rack 1, one end of the connecting rod 4 is connected with the end of the third piston, and the other end of the connecting rod 4 is connected with the movable sleeve pulling clamp 402; the rack 1 is further provided with a rotating shaft sliding table 404, the rotating shaft sliding table 404 is provided with a stabilizing block 403 and a fixed sleeve pulling clamp 406, the fixed sleeve pulling clamp 406 is fixedly connected with the stabilizing block 403; the fixed sleeve pulling clamp 406 and the movable sleeve pulling clamp 402 are parallel to each other; the fixed sleeve pulling clamp 406 and the movable sleeve pulling clamp 402 are both provided with grooves for placing the rotor.

[0040] The third cylinder 405 drives the connecting rod 4 to move the movable sleeve pulling clamp 402 to the right, the groove on the movable sleeve pulling clamp 402 abuts against the magnet, and the rotating shaft is clamped by the groove of the fixed sleeve pulling clamp 406. Due to the movement of the movable sleeve pulling clamp 402, the magnet is pulled off from the rotating shaft, realizing the separation of the rotating shaft and the magnet. The stable support of the rotating shaft sliding table 404 ensures the stability of the rotating shaft during the sleeve pulling process, avoiding the influence of rotating shaft movement or vibration on the sleeve pulling quality.

[0041] The preferred solution further includes that each groove has an arc-shaped transition groove.

[0042] It should be noted that the grooves on the fixed sleeve pulling clamp 406 and the movable sleeve pulling clamp 402 are used to fix the rotating shaft part of the rotor, ensuring that the rotor will not move during the sleeve pulling process. The design of the groove must be accurately matched with the diameter and shape of the rotating shaft to ensure the stability of the rotor and the reliability of the sleeve pulling. The arc-shaped transition groove design can effectively avoid damage to the rotating shaft during the placement and clamping process of the rotor. The arc-shaped transition groove can guide the rotating shaft to smoothly enter the groove, reduce friction and impact, and improve the stability and safety of the sleeve pulling operation.

[0043] The preferred scheme further includes that the collecting mechanism comprises a first cylinder 6 arranged on the rack 1, a first piston rod arranged in the first cylinder 6, a first push plate 601 arranged at the outer end of the first piston rod, and an axis of the first piston rod being perpendicular to an axis of the connecting rod 4; along the extension direction of the first piston rod, a magnetic steel collecting disc 8 is further arranged on the rack 1, for collecting the magnetic steel falling from the connecting rod 4 pushed by the first push plate 601; along the extension direction of the third piston, a rotating shaft collecting disc 7 is further arranged on the rack 1, for collecting the rotating shaft falling from the rotating shaft sliding table 404; a supporting seat is further arranged on the rack 1, a second cylinder 5 is arranged on the supporting seat, a second piston rod is arranged in the second cylinder 5, a second push plate is connected to the outer end of the second piston rod, and a push rod 502 is arranged on the second push plate, for pushing the rotating shaft stuck in the groove out of the rotating shaft sliding table 404.

[0044] The first cylinder 6 drives the first push plate 601 to push the magnetic steel on the connecting rod 4 down and fall into the magnetic steel collecting disc 8, and the second cylinder 5 drives the push rod 502 on the second push plate to push the rotating shaft stuck in the groove out of the rotating shaft sliding table 404 and fall into the rotating shaft collecting disc 7. Through the cooperation of the cylinders and push plates, the automatic separation and collection of the magnetic steel and the rotating shaft are realized, the manual intervention is reduced, and the efficiency of pulling out the sleeve is improved. At the same time, the design of the collecting disc ensures the smoothness and efficiency of the collection process, and avoids the occurrence of jamming or damage in the collection process.

[0045] The preferred scheme further includes that a magnetic steel sliding table 602 is further arranged on the rack 1, and the magnetic steel collecting disc 8 is arranged below the magnetic steel sliding table 602 and on the rack 1.

[0046] The magnetic steel sliding table 602 supports and guides the pushed-down magnetic steel to smoothly fall into the magnetic steel collecting disc 8. The design of the magnetic steel sliding table 602 ensures the stability and safety of the magnetic steel in the sliding process, and avoids the occurrence of jamming or damage of the magnetic steel in the sliding process. The magnetic steel collecting disc 8 provides sufficient collection capacity to ensure the smoothness and efficiency of the collection process.

[0047] Working process:

[0048] 1. Automatic feeding: the vibration disc 2 vibrates and separates the rotor, and the conveying pipe 201 sends it to the placing table 202.

[0049] 2. Positioning and grabbing: the limiting block 2021 of the placing table 202 fixes the rotor, and the PPU manipulator grabs the rotor and places it to the pulling sleeve mechanism.

[0050] 3. Pulling sleeve: the third cylinder 405 drives the movable pulling sleeve clamp 402 to move, and pulls the magnetic steel off the rotating shaft.

[0051] 4. Automatic collection: the first cylinder 6 drives the push plate to push the magnetic steel into the collecting disc, and the second cylinder 5 pushes the rotating shaft into the rotating shaft collecting disc 7.

[0052] Embodiment 2:

[0053] As Figure 1 , Figure 2 With Figure 3 as a supplementary optimization of Embodiment 1, the preferred scheme of this embodiment also includes that first side plates are arranged on both sides of the rotating shaft sliding table 404 along the falling direction of the rotating shaft; second side plates are arranged on both sides of the magnetic steel sliding table 602 along the falling direction of the magnetic steel.

[0054] The side plates installed on both sides of the rotating shaft sliding table 404 and the magnetic steel sliding table 602 effectively prevent the rotating shaft or the magnetic steel from deviating or flying out during the sliding process, avoiding the failure of pulling out or the difficulty of collecting caused by deviation or flying out. This scheme improves the reliability and safety of the pulling-out operation, ensuring the pulling-out quality and production efficiency.

[0055] Embodiment 3:

[0056] As Figure 1 shown, as a supplementary optimization of the above embodiments, the preferred scheme also includes that the vibration disc 2, the operating arm 301, the conveying mechanism, the pulling-out mechanism, and the collecting mechanism together form a pulling-out assembly, and the rack 1 is provided with two pulling-out assemblies.

[0057] Since the rack 1 is provided with two pulling-out assemblies, two rotors can simultaneously perform the above-mentioned pulling-out operation, realizing parallel processing and greatly improving the processing capacity and production efficiency of the device, which is suitable for large-batch rotor pulling-out production scenarios. Compared with single-component devices, double-component design can handle twice the number of rotors in the same time, significantly improving production efficiency.

[0058] The preferred scheme also includes that 2 limiting blocks 2021 are symmetrically arranged on the placement table 202.

[0059] The limiting blocks 2021 are used to fix the position of the rotor, ensuring that the rotor does not move during placement and grabbing. The limiting blocks 2021 are usually symmetrically arranged on both sides of the placement table 202, and their height and shape need to match the size of the rotor to ensure that the rotor can be stably positioned on the placement table 202. The limiting blocks 2021 on the placement table 202 accurately position the rotor. When the rotor is conveyed from the vibration disc 2 or the end of the conveying pipe 201 to the placement table 202, the limiting blocks 2021 can effectively prevent the rotor from sliding or deviating, ensuring that the rotor is in the correct position when the operating arm 301 grabs.

[0060] The above examples are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure. The following points need to be explained: only the structures involved in the embodiments of the present utility model are involved in the drawings of the embodiments of the present utility model, and other structures can refer to the usual design. In the case of no conflict, the features in the same embodiment and different embodiments of the present utility model can be combined with each other. The above is only a demonstrative implementation manner of the present utility model, rather than used to limit the protection scope of the present utility model, and the protection scope of the present utility model is determined by the appended claims.

Claims

1. A sleeve pulling device for a motor rotor, comprising a frame (1), characterized in that, a vibration disc (2) and an operating arm (301) are arranged on the frame (1), a side wall of the vibration disc (2) is connected with a conveying mechanism; the operating arm (301) is used for grabbing the rotor transmitted from the vibration disc (2) through the conveying mechanism; a sleeve pulling mechanism and a collecting mechanism are further arranged on the frame (1), the sleeve pulling mechanism is used for separating the rotating shaft of the rotor and the magnetic steel, and the collecting mechanism is used for collecting the separated rotor and magnetic steel respectively.

2. A sleeve pulling device for a rotor of an electric machine according to claim 1, characterized in that the conveying mechanism comprises a conveying pipe (201) communicated with the vibration disc (2), one end of the conveying pipe (201) is communicated with the inner wall of the vibration disc (2), and the other end of the conveying pipe (201) is connected with a placing table (202).

3. A sleeve pulling device for a motor rotor as defined in claim 2, wherein a base (3) is arranged on the frame (1), and the operating arm (301) is a PPU manipulator arranged on the base (3).

4. A sleeve pulling device for a motor rotor as defined in claim 3, wherein the sleeve pulling mechanism comprises a connecting rod (4) and a third cylinder (405), a third piston is arranged in the third cylinder (405), the connecting rod (4) is arranged on the frame (1), one end of the connecting rod (4) is connected with the end of the third piston, the other end of the connecting rod (4) is connected with a movable sleeve pulling clamp (402), a rotating shaft sliding table (404) is further arranged on the frame (1), a stabilizing block (403) and a fixed sleeve pulling clamp (406) are arranged on the rotating shaft sliding table (404), the fixed sleeve pulling clamp (406) is fixedly connected with the stabilizing block (403), the fixed sleeve pulling clamp (406) and the movable sleeve pulling clamp (402) are parallel to each other, and grooves for placing the rotor are arranged on the fixed sleeve pulling clamp (406) and the movable sleeve pulling clamp (402).

5. A sleeve pulling device for a motor rotor as defined in claim 4, wherein Each groove has an arc-shaped transition groove.

6. A sleeve pulling device for a motor rotor as defined in claim 5, wherein the collecting mechanism comprises a first cylinder (6) arranged on the frame (1), a first piston rod is arranged in the first cylinder (6), an outer end of the first piston rod is provided with a first push plate (601), and the axis of the first piston rod is perpendicular to the axis of the connecting rod (4); along the extension direction of the first piston rod, a magnetic steel collecting disc (8) is further arranged on the frame (1) and used for collecting the magnetic steel falling from the surface of the connecting rod (4) pushed away by the first push plate (601); along the extension direction of the third piston, a rotating shaft collecting disc (7) is further arranged on the frame (1) and used for collecting the rotating shaft falling from the rotating shaft sliding table (404); a supporting seat is further arranged on the frame (1), a second cylinder (5) is arranged on the supporting seat, a second piston rod is arranged in the second cylinder (5), an outer end of the second piston rod is connected with a second push plate, a push rod (502) is arranged on the second push plate, and the push rod (502) is used for ejecting the rotating shaft stuck in the groove so that the rotating shaft falls from the rotating shaft sliding table (404).

7. A sleeve pulling device for a motor rotor as defined in claim 6, wherein a magnetic steel sliding table (602) is further arranged on the frame (1), and a magnetic steel collecting disc (8) is arranged below the magnetic steel sliding table (602).

8. A sleeve pulling device for a motor rotor as defined in claim 7, wherein First side plates are arranged on both sides of the rotating shaft sliding table (404) along the falling direction of the rotating shaft.

9. A sleeve pulling device for a motor rotor as defined in claim 8, wherein The vibration disc (2), the operating arm (301), the conveying mechanism, the sleeve pulling mechanism and the collecting mechanism jointly form a sleeve pulling assembly, and two sleeve pulling assemblies are arranged on the rack (1).

10. A bushing pulling device for a motor rotor according to any one of claims 2-9, characterized in that Two limiting blocks (2021) are symmetrically arranged on the placing table (202).

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