Motor stator disassembly and assembly device

Abstract

The present application relates to a motor stator disassembly and assembly device, and belongs to the field of automobile engine technology. The motor stator disassembly and assembly device includes a plurality of support legs, a plurality of support plates, and an intermediate limiting mechanism; the top of each support leg has a first step structure; the support plate includes a support plate body and at least three claw bodies, the geometric center of the support plate body has a first through hole, the claw body is located on the side of the support plate body, one end of the claw body is connected to the support plate body, and the other end is connected to a support leg; the intermediate limiting mechanism includes a center column and a limiting disc, the top of the center column has an external thread, the geometric center of the limiting disc has an internal thread through hole, and the limiting disc is connected to the center column through the cooperation of the internal thread through hole and the external thread. The use of this application can improve the installation accuracy of the motor stator and improve the disassembly efficiency of the motor stator.

Description

Technical Field

[0001] The present application relates to the technical field of automobile engines, and in particular to a motor stator disassembly and assembly device. Background Art

[0002] Nowadays, new energy vehicles are developing rapidly, including pure electric vehicles or hybrid electric vehicles. In pure electric vehicles, the motor is one of the most critical components. The motor usually includes a coil, a stator and a housing.

[0003] Currently, the disassembly and assembly of the stator is usually done manually. During installation, due to the large mass and volume of the stator, and the coils extending from the inside to the outside of the stator, it is difficult to maintain the stable posture of the stator during the disassembly and assembly process, resulting in low stator installation accuracy. During disassembly, due to the large mass of the stator and the shell, when the stator cannot maintain a stable posture, it is difficult to pull the stator out of the shell, resulting in low stator disassembly efficiency. Summary of the invention

[0004] The embodiment of the present application provides a motor stator disassembly and assembly device, which can solve the technical problems existing in the related art. The technical solution is as follows:

[0005] The embodiment of the present application provides a motor stator disassembly and assembly device, the motor stator disassembly and assembly device comprising a plurality of support legs, a plurality of support plates and an intermediate limiting mechanism;

[0006] The supporting legs are in a columnar structure, and the top of each supporting leg has a first step structure;

[0007] The support plate comprises a support plate body and at least three claws, the support plate body is a plate-shaped structure, a first through hole is provided at the geometric center of the support plate body, each claw is a strip-shaped structure, the claw is located at the side of the support plate body, one end of the claw is connected to the support plate body, and the other end is connected to a support leg;

[0008] The intermediate limiting mechanism includes a center column and a limiting disc. The center column is located in the first through hole of the support plate body and is connected to the support plate body. The top of the center column has an external thread, and the geometric center of the limiting disc has an internal threaded through hole. The limiting disc is connected to the center column through the cooperation of the internal threaded through hole and the external thread.

[0009] In a possible implementation, the stator disassembly and assembly device further includes a base having a circular ring structure, and the base is connected to the bottom end of the support leg.

[0010] In a possible implementation, a positioning groove is provided on the outer circumferential surface of the base, and the positioning groove is used to cooperate with a positioning protrusion of the workbench to limit the rotational movement of the base.

[0011] In a possible implementation, a side of the base away from the bottom end of the supporting leg has an annular protrusion, and the annular protrusion is used to cooperate with the circular through hole of the workbench to limit the translation of the base.

[0012] In a possible implementation, the support plate includes four claws, and the four claws are all perpendicular to the axis of the first through hole, wherein the four claws are respectively a first claw, a second claw, a third claw and a fourth claw, the first claw is at a first angle to the second claw, the third claw is at a second angle to the fourth claw, the first angle is an obtuse angle, and the second angle is an acute angle.

[0013] In a possible implementation manner, the second claw body and the third claw body form a third angle, the first claw body and the fourth claw body form a fourth angle, and the third angle is equal to the fourth angle.

[0014] In a possible implementation, the four claws each have a threaded hole at one end away from the support plate body, and the axes of the threaded holes are parallel to the claws and pass through the geometric center of the claws.

[0015] In a possible implementation, each supporting leg has a second through hole, each second through hole corresponds to the threaded hole one by one, and the claw body is connected to the supporting leg by a bolt.

[0016] In a possible implementation, a side of the middle portion of each supporting leg close to the central column has a second step structure.

[0017] In a possible implementation, the first stepped structure includes a first surface and a second surface, the first surface is an arc surface parallel to the central column, and the second surface is a plane perpendicular to the central column.

[0018] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0019] The embodiment of the present application provides a motor stator disassembly and assembly device, which includes a plurality of support legs, a plurality of support plates and an intermediate limiting mechanism. The top of the support leg has a first step structure, and the intermediate limiting mechanism includes a center column and a limiting disk, the top of the center column has an external thread, and the geometric center of the limiting disk has an internal thread through hole. In this way, when disassembling and assembling the motor stator, the first step structure can be supported outside the outer wall of the stator, and the limiting disk can be adjusted up and down by the cooperation of the internal thread through hole and the external thread. The limiting disk is located inside the inner wall of the stator. The first step structure and the limiting disk effectively limit the stator, so that the stator maintains a stable posture, thereby improving the installation accuracy of the stator and improving the disassembly efficiency of the stator.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is an exploded view of a motor stator disassembly and assembly device shown in an embodiment of the present application;

[0023] Figure 2 It is a structural schematic diagram of a motor stator disassembly and assembly device shown in an embodiment of the present application;

[0024] Figure 3 It is a structural schematic diagram of a motor stator disassembly and assembly device shown in an embodiment of the present application;

[0025] Figure 4 is a partial cross-sectional view of a motor stator disassembly and assembly device shown in an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the structure of a support leg shown in an embodiment of the present application.

[0027] Legend

[0028] 1. Support leg;

[0029] 1a, first step structure; 1b, second step structure; 1c, second through hole; 1d, reinforcing rib;

[0030] 2. Support plate;

[0031] 21. Support plate body; 22. Claw body; 21a. First through hole; 22a. Threaded hole of the claw body;

[0032] 221, first claw body; 222, second claw body; 223, upper claw body; 224, fourth claw body;

[0033] 3. Intermediate limit mechanism;

[0034] 31. center column; 32. limiting disc; 31a. external thread of the center column; 32a. internal thread through hole of the limiting disc;

[0035] 4. Base;

[0036] 4a, positioning groove; 4b, annular protrusion. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0038] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The present application provides a motor stator disassembly and assembly device, such as Figure 1 As shown, the motor stator disassembly and assembly device includes a support leg 1, a plurality of support plates 2 and an intermediate limiting mechanism 3.

[0040] Among them, the support plate 2 includes a support plate body 21 and at least three claw bodies 22, the intermediate limiting mechanism 3 includes a central column 31 and a limiting disc 32, each support leg 1 is connected to a claw body 22, and the central column 31 is connected to the first through hole 21a on the support plate body.

[0041] Below, the various parts of the motor stator disassembly and assembly device are introduced respectively:

[0042] 1. Support leg 1

[0043] The support leg 1 is a component in the motor stator disassembly and assembly device used to be fixedly connected to the workbench or base to stably support the motor. Figure 1 As shown, the support leg 1 may have a columnar structure, and the top of each support leg 1 has a first step structure 1a, the first step structure 1a is composed of a first surface and a second surface, and the first step structure 1a faces the middle limiting mechanism 3.

[0044] When disassembling the motor, the multiple support legs 1 can be placed parallel and vertically on the workbench or base, so that the first step structures 1a are all facing the middle limit mechanism 3, and then the cylindrical shell of the stator is installed on the first step structure 1a of the multiple support legs 1, the outer wall of the stator shell is in contact with the first surface of the first step structure 1a, and the bottom surface of the stator shell is parallel to the second surface of the first step structure 1a. In this way, the motor stator can be stably installed on the support legs 1.

[0045] like Figure 4 As shown, the support leg 1 may have a second through hole 1c, and the axial direction of the second through hole 1c may be the same as the direction of the first step structure 1a. The support leg 1 may be detachably connected to the claw body 22 by a bolt passing through the second through hole 1c.

[0046] Optionally, the second through hole 1c may be a threaded through hole.

[0047] Optionally, the second through hole 1c can be a smooth through hole, and the second through hole 1c includes a first hole section and a second hole section, the first hole section is located on the side of the support leg 1 close to and away from the center limit mechanism 3, the second hole section is located on the side of the center limit mechanism 3 of the support leg 1, the diameter of the second hole section is D2, the diameter of the first hole section is D1, and D2>D1. In this way, the service life of the lifting bolt is extended.

[0048] Optionally, in the support leg 1, a reinforcing rib 1d may be provided between the first step structure 1a and the second through hole 1c, such as Figure 2 As shown, the reinforcing rib 1d is located on the side of the support leg 1 away from the central limiting mechanism 3. In this way, the support leg 1 can have a higher shear strength, and when the engine stator is placed on the first stepped structure 1a, the support leg 1 is ensured not to be deformed.

[0049] As for the material of the support leg 1, it can be a metal material with good mechanical properties, such as nickel-iron alloy, aluminum-magnesium alloy, etc., which is not limited in the embodiment of the present application.

[0050] The supporting leg 1 may be processed by casting, cutting or stamping, which is not limited in the embodiment of the present application.

[0051] 2. Support plate 2

[0052] The support plate 2 is a component used to increase the strength of the motor stator disassembly and assembly device. Each support plate 2 includes a support plate body 21 and at least three claw bodies 22.

[0053] Support plate body 21

[0054] The support plate body 21 is a component of the support plate 2 used to connect the plurality of claw bodies 22 .

[0055] The support plate body 21 may have a polygonal plate structure, and the number of sides of the support plate body 21 is determined by the number of claws 22, that is, if there are three claws, the support plate body 21 is a triangular plate structure, and if there are four claws, the support plate body 21 is a rectangular plate structure.

[0056] like Figure 1 As shown, the geometric center of the support plate body 21 has a first through hole 21a, and the direction of the first through hole 21a is the same as the thickness direction of the support plate body 21. The shape of the first through hole 21a can be circular or rectangular. When the center column 31 is a cylinder, the shape of the first through hole 21a is circular, and when the center column 31 is a hexagonal prism, the shape of the first through hole 21a is rectangular.

[0057] Claw body 22

[0058] The claw body 22 is a component of the support plate 2 used to connect the support plate body 21 and the support leg 1 .

[0059] like Figure 1 As shown, the claw body 22 has a strip-shaped structure, and the plurality of claw bodies 22 are located on the side of the support plate body 21 , and the two ends of each claw body 22 are respectively connected to the support plate body 21 and the support leg 1 .

[0060] The claw body 22 may have a threaded hole 22a at one end away from the support plate body 21. Figure 4 As shown, the axis of the threaded hole 22a is parallel to the length direction of the claw body 22 and passes through the geometric center of the claw body 22. The threaded hole 22a is used to cooperate with the second through hole 1c of the support leg 1, so that the claw body 22 is detachably connected to the support leg 1. In this way, the processing difficulty of the motor stator disassembly device can be reduced.

[0061] As an example, the internal thread of the threaded hole 22a may be a fine thread or a round thread.

[0062] In this way, stress concentration at the root can be reduced, and the installation stress generated by the bolt in the installed state can be reduced. In addition, since the claw body 22 is connected to the support leg 1, the support leg 1 needs to support the stator, and the stator may rotate around the axis of the central column 31 on the support leg 1. During the rotation of the stator, the support leg 1 exerts a load on the claw body 22. Setting the internal thread of the threaded hole 22a as a fine thread or a round thread can ensure that the bolt has a good self-locking performance under the load, and prevent the bolt from falling off during operation.

[0063] Optionally, the support plate 2 may be an integrally formed component, that is, the support plate body 21 and the claw body 22 are integrally formed.

[0064] Optionally, the support plate 2 can be processed and formed in steps, that is, the support plate body 21 and the claw body 22 are processed and formed separately, and then connected together by bolts. When the support plate body 21 and the claw body 22 are processed and formed separately, the threaded hole 22a located at the claw body 22 can be a threaded through hole, and the support plate body 21 and the claw body 22 have a support plate body threaded hole with the same aperture as the threaded hole 22a. In this way, the support leg 1, the claw body 22 and the support plate body 21 can be detachably connected by bolts passing through the support leg 1, the claw body 22 and the support plate body 21 in sequence.

[0065] The processing method of the support plate 2 may be casting, cutting or stamping, which is not limited in the embodiment of the present application.

[0066] The material of the support plate 2 may be a metal material with good mechanical properties, such as nickel-iron alloy, aluminum-magnesium alloy, etc., which is not limited in the embodiment of the present application.

[0067] In the motor stator disassembly and assembly device, a plurality of support plates 2 may be provided in the motor stator disassembly and assembly device. The more the number of support plates 2, the greater the overall strength of the motor stator disassembly and assembly device, and the technician may set the number of support plates 2 according to actual needs. For example, when the mover is made of a metal material with a higher density, the number of support plates 2 in the motor stator disassembly and assembly device may be increased, and when the mover is made of a metal material with a lower density, the number of support plates 2 in the motor stator disassembly and assembly device may be reduced.

[0068] like Figure 1 As shown, the motor stator disassembly and assembly device has two support plates 2, and the two support plates 2 are parallel to each other.

[0069] 3. Intermediate limit mechanism 3

[0070] The intermediate limiting mechanism 3 is a component used to limit the motor mover in the motor stator disassembly and assembly device. Figure 1As shown, the intermediate limiting mechanism 3 includes a center column 31 and a limiting disc 32 .

[0071] Center column 31

[0072] like Figure 1 As shown, the central column 31 is located in the first through hole 21 a of the support plate body 21 and is connected to the support plate body 21 .

[0073] The central column 31 has a cylindrical structure. The central column 31 includes a first portion, a second portion and a third portion. The third portion has an external thread 31 a.

[0074] Among them, the first part, the second part and the third part are coaxially connected, the second part is located between the first part and the third part, the diameters of the first part, the second part and the third part are d1, d2 and d3 respectively, d2>d1=d3, and the diameter of the first part is the same as the diameter of the first through hole 21a.

[0075] In this way, it can be ensured that the central column 31 has a higher strength.

[0076] Limit disc 32

[0077] The limiting disc 32 is a component of the intermediate limiting mechanism 3 that is connected to the inner wall of the engine stator to limit the engine stator.

[0078] like Figure 1 As shown, the limiting disk 32 has a cylindrical structure with rounded edges. An internal threaded through hole 32a is provided at the geometric center of the limiting disk 32. The limiting disk 32 is connected to the center column 31 through the cooperation between the internal threaded through hole 32a and the external thread 31a.

[0079] In this way, the limiting disc 32 can move up and down along the axis of the center column 31 on the center column 31 through the cooperation between the internal thread through hole 32 a and the external thread 31 a.

[0080] As an example, the internal thread of the internal thread through hole 32a may be a fine thread or a round thread.

[0081] In this way, the stress concentration at the root can be reduced, and the installation stress generated by the bolt in the installed state can be reduced. In addition, since the limiting disc 32 contacts the inner wall of the motor stator, the mass of the motor stator is relatively large, and the stator may rotate around the axis of the center column 31 when it is disassembled. During the rotation of the stator, the inner wall of the stator exerts a load on the limiting disc 32. The internal thread of the internal thread through hole 32a is set to a fine pitch thread or a round thread, which can ensure that the bolt has a good self-locking performance under the load, and the position of the internal thread through hole 32a changes.

[0082] The engine stator usually has a hollow cylindrical structure, and the outer diameter of the limiting disc 32 can be set to the same size as the inner diameter of the stator.

[0083] In this way, when the engine stator is placed on the first step structure 1a, the position of the limiting disk 32 on the center column 31 can be adjusted up and down, so that the side of the limiting disk 32 away from the support plate 2 contacts the top surface of the stator, and the outer wall of the limiting disk 32 contacts the inner wall of the stator, thereby limiting the stator.

[0084] The motor stator disassembly and assembly device may further include a base 4, such as Figure 1 As shown, the base 4 has a circular ring structure, and the base 4 is detachably connected to the bottom end of the supporting leg 1 by bolts.

[0085] Optional, such as Figure 2 As shown, the outer circumferential surface of the base 4 has a positioning groove 4a, which is used to cooperate with the positioning protrusion of the workbench to limit the rotational movement of the base 4. The surface where the positioning groove 4a contacts the positioning protrusion is an arc surface, so that the stress concentration of the positioning groove 4a can be reduced.

[0086] Optional, such as Figure 2 As shown, the side of the base 4 away from the bottom end of the supporting leg 1 has an annular protrusion 4b, and the annular protrusion 4b is used to cooperate with the circular through hole of the workbench to limit the translation of the base 4.

[0087] In this way, the support leg 1 is connected to the side of the base 4 close to the support leg 1, and a positioning groove 4a and an annular protrusion 4b are provided on the base 4 to prevent the base 4 from rotating and translating in the workbench, thereby ensuring that the motor stator disassembly and assembly device always remains stable during the process of disassembling and assembling the motor stator.

[0088] Optionally, the base 4 may also have a plurality of stop bolt holes, and the stop bolt holes are used to fix the base 4 and the workbench.

[0089] The motor usually includes a coil, a stator and a housing. The coil usually surrounds the stator, and the housing is fixed to the outer wall of the stator by multiple bolts. During maintenance, the motor needs to be disassembled and the housing on the outer wall of the stator needs to be removed to facilitate the inspection of whether the structure of the stator has any faults. After the maintenance is completed, the housing needs to be reinstalled on the outer wall of the stator. The following is a brief introduction to the disassembly and assembly process of the motor stator:

[0090] (1) Disassembly process of motor stator

[0091] First, the assembled motor stator disassembly and assembly device is mounted on a workbench to check whether the motor stator disassembly and assembly device is unable to perform translational and rotational motions.

[0092] Secondly, after determining whether the motor stator disassembly and assembly device is unable to perform translational and rotational motion, use a sling to lift the motor and place it on the first step structure 1a, and adjust the limit disk 32 upward so that the outer wall of the limit disk 32 contacts the inner wall of the stator to complete the limiting of the motor.

[0093] Next, unscrew the bolts connecting the stator and the casing, use the lifting device to vertically suspend the casing, and the stator will slide away from the casing under the action of its own gravity. Remove the casing and place it in the designated position to complete the disassembly of the motor stator.

[0094] Finally, the limiting disc 32 is adjusted downward so that the outer wall of the limiting disc 32 is no longer in contact with the inner wall of the stator, the limiting of the motor is released, and the disassembled stator is removed.

[0095] (2) Installation process of motor stator

[0096] First, the assembled motor stator disassembly and assembly device is mounted on a workbench to check whether the motor stator disassembly and assembly device is unable to perform translational and rotational motions.

[0097] Secondly, after determining whether the motor stator disassembly and assembly device is unable to perform translational and rotational motion, the stator is lifted by a sling and placed on the first step structure 1a, and the limiting disk 32 is adjusted upward so that the outer wall of the limiting disk 32 contacts the inner wall of the stator to complete the limiting of the stator.

[0098] Again, place the guide rod in the stator threaded hole of the stator, lift the shell with a hoist, pass the guide rod through the shell threaded hole corresponding to the stator in the shell, and then take out the guide rods one by one, and install a bolt for each guide rod taken out.

[0099] Finally, after all bolts are installed, the limiting disc 32 is adjusted downward so that the outer wall of the limiting disc 32 is no longer in contact with the inner wall of the stator, the limiting of the motor is released, and the installed motor is removed.

[0100] Below, some optional structures of the motor stator disassembly and assembly device are introduced:

[0101] Structural feature 1: The support plate 2 may include four claw bodies 22, and the four claw bodies 22 are all perpendicular to the axis of the first through hole 21a.

[0102] Optional, such as Figure 3 As shown, the four claws 22 are respectively a first claw 221, a second claw 222, a third claw 223 and a fourth claw 224. The first claw 221 and the second claw 222 form a first angle, and the third claw 223 and the fourth claw 224 form a second angle. The first angle is an obtuse angle, and the second angle is an acute angle.

[0103] The first angle has a value range of 120° to 150°, and the second angle has a value range of 30° to 60°.

[0104] Optionally, the first angle and the second angle may be complementary to each other.

[0105] Since the motor coil has three-phase wires, the three-phase wires may be distributed in a wide spacing or a narrow spacing. When the three-phase wires are distributed in a wide spacing, the motor is placed on the motor stator disassembly and assembly device, and the three-phase wires may rub against two adjacent or claw body 22 support legs 1, causing damage to the three-phase wires.

[0106] In this way, the angle between the first claw body 221 and the second claw body 222 is set to the first angle, and the angle between the third claw body 223 and the fourth claw body 224 is set to the second angle. When the motor is placed on the motor stator disassembly and assembly device, if the three-phase line is distributed in a wide distance, the three-phase line is placed between the first claw body 221 and the second claw body 222; if the three-phase line is distributed in a narrow distance, the three-phase line is placed between the third claw body 223 and the fourth claw body 224 to prevent the three-phase line from contacting the claw body 22 or the support leg 1.

[0107] Optionally, the second claw body 222 and the third claw body 223 may be at a third angle, and the first claw body 221 and the fourth claw body 224 may be at a fourth angle.

[0108] The third angle is equal to the fourth angle.

[0109] In this way, the manufacturing difficulty of the support plate 2 can be reduced, and the overall strength of the motor stator disassembly and assembly device can be improved.

[0110] Structural feature 2: The first stepped structure 1a may include a first surface and a second surface.

[0111] like Figure 5 As shown, the first surface is an arc surface parallel to the central column 31, and the second surface is a plane perpendicular to the central column 31, and the first surface and the second surface are adjacent.

[0112] The radius of the first surface is greater than the diameter of the outer wall of the stator.

[0113] In this way, if the limiting disc 32 cannot prevent the stator from rotating around the central column 31, when the stator rotates on the first step structure 1a, the outer wall of the stator will not contact the first step structure 1a, which can prevent the first step structure 1a from scratching and damaging the outer wall of the stator.

[0114] Structural feature three: the supporting leg 1 can have a second step structure 1b.

[0115] like Figure 5As shown, the middle part of the support leg 1 near the central column 31 has a second stepped structure 1b. The second stepped structure 1b includes a third surface and a fourth surface, the third surface is an arc surface parallel to the central column 31, the fourth surface is a plane perpendicular to the central column 31, the third surface is adjacent to the second surface, and the fourth surface is adjacent to the third surface.

[0116] In this way, the coil can be prevented from contacting the supporting leg 1 .

[0117] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0118] The embodiment of the present application provides a motor stator disassembly and assembly device, which includes a plurality of support legs 1, a plurality of support plates 2 and an intermediate limiting mechanism 3. The top of the support leg 1 has a first step structure 1a, and the intermediate limiting mechanism 3 includes a center column 31 and a limiting disc 32. The top of the center column 31 has an external thread 31a, and the geometric center of the limiting disc 32 has an internal thread through hole 32a. In this way, when disassembling and assembling the motor stator, the first step structure 1a can be supported outside the outer wall of the stator, and the limiting disc 32 can be adjusted up and down through the internal thread through hole 32a and the external thread 31a. The limiting disc 32 is located inside the inner wall of the stator. The first step structure 1a and the limiting disc 32 effectively limit the stator, so that the stator maintains a stable posture, thereby improving the installation accuracy of the stator and improving the disassembly efficiency of the stator.

[0119] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A motor stator disassembly and assembly device, characterized in that: The motor stator disassembly and assembly device comprises a plurality of support legs (1), a plurality of support plates (2) and an intermediate limiting mechanism (3); The support leg (1) is a columnar structure, and the top of each support leg (1) has a first step structure (1a); The support plate (2) comprises a support plate body (21) and four claw bodies (22); the support plate body (21) is in a plate-like structure; a first through hole (21a) is provided at the geometric center of the support plate body (21); each claw body (22) is in a strip-shaped structure; the claw body (22) is located at a side of the support plate body (21); one end of the claw body (22) is connected to the support plate body (21), and the other end is connected to a support leg (1); wherein the four claw bodies (22) are perpendicular to the axis of the first through hole (21a); ​​the four claw bodies (22) are respectively a first claw body (221), a second claw body (222), a third claw body (223), and a fourth claw body (224); the first claw body (221) and the second claw body (222) form a first angle; the third claw body (223) and the fourth claw body (224) form a second angle; the first angle is an obtuse angle, and the second angle is an acute angle; The intermediate limiting mechanism (3) comprises a center column (31) and a limiting disc (32); the center column (31) is located in the first through hole (21a) of the support plate body (21) and is connected to the support plate body (21); the top end of the center column (31) has an external thread (31a); the geometric center of the limiting disc (32) has an internal thread through hole (32a); the limiting disc (32) is connected to the center column (31) through the cooperation between the internal thread through hole (32a) and the external thread (31a).

2. The motor stator disassembly and assembly device according to claim 1, characterized in that: The stator disassembly and assembly device further comprises a base (4), the base (4) having a circular ring structure, and the base (4) is connected to the bottom end of the support leg (1).

3. The motor stator disassembly and assembly device according to claim 2, wherein the outer circumferential surface of the base (4) is provided with a positioning groove (4a), and the positioning groove (4a) is used to cooperate with the positioning protrusion of the workbench to limit the rotational movement of the base (4).

4. The motor stator disassembly and assembly device according to claim 2, wherein a side of the base (4) away from the bottom end of the support leg (1) has an annular protrusion (4b), and the annular protrusion (4b) is used to cooperate with the circular through hole of the workbench to limit the translation of the base (4).

5. The motor stator disassembly and assembly device according to claim 1, characterized in that: The second claw body (222) and the third claw body (223) form a third angle, the first claw body (221) and the fourth claw body (224) form a fourth angle, and the third angle is equal to the fourth angle.

6. The motor stator disassembly and assembly device according to claim 1, characterized in that: The four claw bodies (22) each have a threaded hole (22a) at one end away from the support plate body (21); the axes of the threaded holes (22a) are parallel to the claw bodies (22) and pass through the geometric center of the claw bodies (22).

7. The motor stator disassembly and assembly device according to claim 6, characterized in that: Each supporting leg (1) has a second through hole (1c), each second through hole (1c) corresponds one-to-one to the threaded hole (22a), and the claw body (22) is connected to the supporting leg (1) by means of bolts.

8. The motor stator disassembly and assembly device according to claim 1, characterized in that: A side of the middle portion of each supporting leg (1) close to the central column (31) has a second step structure (1b).

9. The motor stator disassembly and assembly device according to claim 1, characterized in that: The first stepped structure (1a) comprises a first surface and a second surface, the first surface being an arc surface parallel to the central column (31), and the second surface being a plane perpendicular to the central column (31).

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