CN106972706B - Splitting equipment for motor end cover and stator - Google Patents
Splitting equipment for motor end cover and stator Download PDFInfo
- Publication number
- CN106972706B CN106972706B CN201610029453.6A CN201610029453A CN106972706B CN 106972706 B CN106972706 B CN 106972706B CN 201610029453 A CN201610029453 A CN 201610029453A CN 106972706 B CN106972706 B CN 106972706B
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- end cover
- motor
- stator
- positioning seat
- motor end
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- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a motor end cover and stator splitting device, which comprises a bottom plate; the motor end cover and the stator can be fixed on the motor positioning seat; the plurality of vertical plates are arranged on the bottom plate and distributed along the circumferential direction of the motor positioning seat; the motor positioning seat comprises a plurality of end cover chucks which are distributed along the circumferential direction of the motor positioning seat, and a first driving piece is arranged on each vertical plate and can drive the end cover chucks to mutually approach to a motor end cover on the motor positioning seat; the second driving piece is arranged above the motor positioning seat, and the pressure head is fixedly connected with the telescopic end of the second driving piece, and the second driving piece drives the pressure head to move up and down and can prop against the stator. The motor end cover and stator disassembling equipment can effectively solve the problems of time and labor waste and low efficiency when the motor end cover and the stator are disassembled.
Description
Technical Field
The invention relates to the technical field of disassembly and assembly equipment, in particular to equipment for disassembling an end cover and a stator of a motor.
Background
In the structural design of the motor, an end cover of the motor is fixed at the end part of a stator, and the end cover are in interference fit. At present, the scrapped motor needs to split the end cover and the stator, when the end cover and the stator of the motor need to be separated, a simple tool or a straight screwdriver and the like are generally adopted, the stator and the end cover are placed on the tool base when the tool is used, the stator, the end cover and the tool base are lifted by hands, and the stator is bumped on the bottom plate, so that the stator is separated from the end cover by virtue of inertia, and the purpose of splitting the end cover and the stator is achieved. When the motor end cover is disassembled in this way, the motor end cover is stressed unevenly, the end cover is forcibly disassembled, so that plastic sealing materials at the opening of the injection molding stator end cover are extremely easy to collapse, and scrapping is generated. In addition, the operator is time-consuming and labor-consuming when disassembling the end cover and the stator of the motor, and the working efficiency is low.
In summary, how to effectively solve the problems of time and effort consuming and low efficiency when disassembling the motor end cover and the stator is a problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the present invention aims to provide a disassembling device for a motor end cover and a stator, which can effectively solve the problems of time and labor waste and low efficiency when the motor end cover and the stator are disassembled.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a motor end cap and stator disassembly apparatus comprising:
a bottom plate;
the motor end cover and the stator can be fixed on the motor positioning seat;
the plurality of vertical plates are arranged on the bottom plate and distributed along the circumferential direction of the motor positioning seat;
the motor positioning seat comprises a plurality of end cover chucks which are distributed along the circumferential direction of the motor positioning seat, and a first driving piece is arranged on each vertical plate and can drive the end cover chucks to mutually approach to a motor end cover on the motor positioning seat;
the second driving piece is arranged above the motor positioning seat, and the pressure head is fixedly connected with the telescopic end of the second driving piece, and the second driving piece drives the pressure head to move up and down and can prop against the stator.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the motor positioning seat is disposed in the circular groove, and the upper end of the compression spring is abutted to the motor positioning seat, and the motor positioning seat can slide up and down in the circular groove.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the motor end cover further comprises a vertically arranged adjusting screw connected with the fixing block, and the lower end of the adjusting screw abuts against the upper end face of the motor positioning seat.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the motor positioning seat includes a seat bottom plate and a plurality of positioning columns disposed on an upper end surface of the seat bottom plate, and a plurality of positioning columns are distributed along a ring shape.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the number of the vertical plates and the end cover chucks is two, and the two vertical plates are oppositely arranged.
Preferably, in the above-mentioned motor end cover and stator's split equipment, still include both ends respectively with two riser fixed connection's horizontal pole and set up in two relative curb plates on the horizontal pole, two first driving piece can drive two the curb plate slides along the horizontal pole, the end cover chuck is fixed in the bottom of curb plate.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the motor end cover further comprises a buffer spring sleeved on the cross bar, and the buffer spring is located between the two side plates.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the motor end cover further includes a guide post with one end fixedly connected with the vertical plate, the guide post passes through the side plate and the side plate slides along the cross bar and the guide post.
Preferably, in the above-mentioned motor end cover and stator's split equipment, the pressure head includes two preformings of relative setting, just the bottom of preforming is provided with the briquetting that can offset with the stator, two have between the preforming and dodge the clearance.
Preferably, the motor end cover and stator disassembling device further comprises a controller for controlling the working states of the first driving piece and the second driving piece.
Preferably, in the above-mentioned motor end cover and stator disassembling device, the telescopic end of the first driving member is further provided with a displacement sensor connected with the controller in a signal manner, and the controller controls the first driving member to stop moving when the telescopic end of the first driving member moves to a set displacement.
Preferably, in the above-mentioned motor end cover and stator split device, further include an emergency stop switch and a start switch connected with the controller by signals.
When the motor end cover and stator disassembly device provided by the invention is applied, the motor end cover and the stator which are in interference fit are fixed on the positioning seat, and the motor end cover is positioned on the upper side of the stator. And then the plurality of first driving pieces are used for driving the plurality of end cover chucks to approach each other until the plurality of end cover chucks are propped against the motor end cover and clamp the motor end cover on the motor positioning seat together. Then the second driving piece drives the pressure head to move downwards until the pressure head is propped against the stator, at the moment, the second driving piece continuously drives the pressure head to move downwards, the pressure head moves downwards to drive the stator to move downwards, and the positions of the motor end covers clamped by the end cover clamping heads are kept unchanged all the time, so that the positions of the motor end covers are unchanged when the stator moves downwards, the motor end covers are uniformly stressed, and finally the separation of the stator and the motor end covers is realized. When the motor end cover and the stator disassembling equipment are used, the problem that when the motor end cover is disassembled, the motor end cover is stressed unevenly to forcibly disassemble the end cover, so that plastic package material of an injection molded stator end cover port is disintegrated is caused, time and labor are wasted, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a motor end cover and stator disassembly device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a motor end cover and stator splitting apparatus according to an embodiment of the present invention.
In fig. 1-2:
the motor comprises a 1-cross rod, a 2-side plate, a 3-buffer spring, a 4-pressing plate, a 5-motor end cover, a 6-vertical plate, a 7-first driving piece, an 8-push plate, a 9-guide pillar, a 10-adjusting screw, an 11-motor positioning seat, an 11 a-positioning pillar, a 12-stator, a 13-fixed block, a 14-bottom plate, a 15-second driving piece, a 16-pressing head, a 17-starting switch and an 18-scram switch.
Detailed Description
The invention aims to provide a motor end cover and stator disassembling device, and the structural design of the motor end cover and stator disassembling device can effectively solve the problems of time and labor waste and low efficiency when the motor end cover and the stator are disassembled.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the motor end cover and stator disassembling apparatus provided in the embodiment of the present invention includes a bottom plate 14, a motor positioning seat 11, a vertical plate 6, a first driving member 7, an end cover chuck, a second driving member 15, and a pressing head 16. Wherein the motor positioning seat 11 is arranged on the bottom plate 14, and the motor end cover 5 and the stator 12 can be fixed on the motor positioning seat 11, namely, the motor end cover 5 and the stator 12 which are in interference fit can be fixed on the motor positioning seat 11 and the end cover is arranged on the upper side of the stator 12.
The plurality of risers 6 are fixedly disposed on the base plate 14, and the plurality of risers 6 are distributed along the circumference of the motor positioning seat 11, i.e., the plurality of risers 6 are distributed around the motor end cap 5 and the stator 12 on the motor positioning seat 11. The end cover chucks are also distributed along the circumferential direction of the motor positioning seat 11, a first driving piece 7 is arranged on each vertical plate 6, and the first driving piece 7 can drive the end cover chucks to mutually approach to clamp the motor end cover 5 on the motor positioning seat 11. That is, the first driving member 7 on each vertical plate 6 drives one end cover chuck to move, when the end cover chuck moves, the end cover chuck is close to or far away from the motor end cover 5, and when the end cover chucks are all propped against the motor end cover 5, the motor end cover 5 can be clamped together, and at the moment, the motor end cover 5 is subjected to radial clamping force from the end cover chucks.
The second driving piece 15 is arranged above the motor positioning seat 11, and the pressure head 16 is fixedly connected with the telescopic end of the second driving piece 15, when the telescopic end of the second driving piece 15 moves up and down, the pressure head 16 can be driven to move up and down, and when the pressure head 16 moves up and down, the pressure head 16 can be abutted against or separated from the stator 12, namely, after the pressure head 16 moves down to a proper position, the pressure head is abutted against the stator 12.
When the motor end cover 5 and stator 12 disassembly device provided by the embodiment of the invention is applied, the motor end cover 5 and the stator 12 which are in interference fit are fixed on a positioning seat, and the motor end cover 5 is positioned on the upper side of the stator 12. And then the plurality of first driving pieces 7 are used for driving the plurality of end cover chucks to approach each other until the plurality of end cover chucks are propped against the motor end cover 5 and jointly clamp the motor end cover 5 on the motor positioning seat 11. Then the second driving piece 15 drives the pressing head 16 to move downwards until the pressing head 16 abuts against the stator 12, at this time, the second driving piece 15 continues to drive the pressing head 16 to move downwards, the pressing head 16 moves downwards to drive the stator 12 to move downwards, the plurality of end cover clamping heads clamp the motor end cover 5 to keep the position of the motor end cover 5 unchanged all the time, so that the situation that the stator 12 moves downwards and the position of the motor end cover 5 is unchanged, the motor end cover is stressed uniformly, and finally the separation of the stator 12 and the motor end cover 5 is realized. When the motor end cover 5 and the stator 12 disassembling equipment is used, the problem that when the motor end cover is disassembled, the motor end cover is stressed unevenly to forcibly disassemble the end cover, so that plastic sealing material of an injection molded stator end cover port is disintegrated is caused, time and labor are wasted, and the working efficiency is greatly improved.
The end cap chuck can be in an L shape. The horizontal part of the end cover chuck can extend between the motor end cover 5 and the stator 12, so that the position of the motor end cover 5 can be further ensured to be unchanged.
In order to further optimize the technical scheme, the splitting device can further comprise a fixed block 13 and a compression spring, wherein the fixed block 13 is provided with a circular groove, the compression spring is arranged in the circular groove, the motor positioning seat 11 is also arranged in the circular groove, the upper end of the compression spring is propped against the motor positioning seat 11, the lower end of the compression spring is propped against the bottom wall of the circular groove, the motor positioning seat 11 can slide up and down in the circular groove, namely, the compression spring can be compressed when the motor positioning seat 11 slides down in the circular groove. So set up, when first driving piece 7 drive pressure head 16 moves down, pressure head 16 drives stator 12 and motor positioning seat 11 and slides down in circular recess, and then motor positioning seat 11 compression spring has guaranteed that stator 12 and motor positioning seat 11 steadily move down. In order to prevent the compression spring from deforming, a compression spring guide post may be provided along which the compression spring extends and contracts.
Further, in order to adapt to stators 12 with different thicknesses, the disassembling device may further include a vertically arranged adjusting screw 10 connected with a fixed block 13, and the lower end of the adjusting screw 10 abuts against the upper end face of the motor positioning seat 11. So set up, when adjusting screw 10 rotates and moves up, compression spring's length gets longer, and when adjusting screw 10 rotates and moves down, compression spring's length gets shorter. Specifically, the number of the adjustment screws 10 may be plural and distributed along the circumferential direction of the fixed block 13.
In this embodiment, the motor positioning seat 11 may include a seat bottom plate and a plurality of positioning posts 11a disposed on an upper end surface of the seat bottom plate, and the plurality of positioning posts 11a are distributed along a ring shape. The stator 12 can be placed between the positioning posts 11a, and the positioning posts 11a are limited to prevent the stator 12 from being deviated. Of course, the motor positioning seat 11 may also only include a seat bottom plate, and the seat bottom plate is provided with a positioning groove, the stator 12 is placed in the positioning groove, and the stator 12 is limited by the groove wall of the positioning groove, which is not limited herein.
In order to simplify the structure of the motor end cover 5 and stator 12 splitting device, the number of the vertical plates 6 and the end cover chucks can be two, the two vertical plates 6 are arranged oppositely, the motor positioning seat 11 is located between the two vertical plates 6, each vertical plate 6 is provided with a first driving piece 7, the telescopic ends of the first driving pieces 7 can be telescopic along the horizontal direction, and the two first driving pieces 7 are respectively located on two sides of the motor positioning seat 11.
Further, the splitting apparatus may further include a cross bar 1 and two side plates 2, wherein two ends of the cross bar 1 are fixedly connected with the two vertical plates 6, the cross bar 1 is located above the motor positioning seat 11, the two side plates 2 are oppositely disposed and the two side plates 2 are disposed on the cross bar 1, the cross bar 1 passes through the side plates 2, and the two first driving members 7 can drive the two side plates 2 to slide along the cross bar 1, and the end cap chuck is fixed at the bottom end of the side plates 2. That is, when the first driving piece 7 drives the side plate 2 to slide along the cross bar 1, the side plate 2 drives the end cover chuck to slide close to the electronic end cover.
In order to prevent the distance between the two side plates 2 from being too small, a buffer spring 3 can also be sleeved on the cross bar 1, and the buffer spring 3 is positioned between the two side plates 2.
In addition, in order to prevent the two side plates 2 from shaking when moving along the cross bar 1, a guide post 9 with one end fixedly connected with the vertical plate 6 can be further arranged, the guide post 9 penetrates through the side plates 2, the side plates 2 slide along the cross bar 1 and the guide post 9, namely, the guide post 9 and the cross bar 1 are arranged in parallel, and the guide post 9 and the cross bar 1 penetrate through the side plates 2, so that the side plates 2 can be prevented from rotating around the cross bar 1, and the movement of the side plates 2 is more stable.
The telescopic end of the first driving member 7 may be provided with a push plate 8 parallel to the side plate 2, and the push plate 8 abuts against the side plate 2, so as to enable the telescopic end of the first driving member 7 to push the side plate 2 to move. Of course, the side plate 2 may be directly fixedly connected to the telescopic end of the first driving member 7, which is not limited herein.
In the above embodiment, the pressing head 16 may include two pressing pieces 4 disposed opposite to each other, and the bottom end of the pressing piece 4 is provided with a pressing piece capable of abutting against the stator 12 with an avoiding gap therebetween. Thus, when the two pressing pieces 4 move downwards, the cross rod 1 passes through the gap between the two pressing pieces to avoid. The pressing block can abut against the upper end face of the stator 12, and the bottom face of the pressing block is a plane.
The first driving member 7 and the second driving member 15 may be air cylinders, or may be hydraulic cylinders, which is not limited herein.
In order to further improve the working efficiency, a controller for controlling the working states of the first driving member 7 and the second driving member 15 may be further included, and specifically the controller may be a PLC controller. Thus, compared with manual control, the working states of the first driving piece 7 and the second driving piece 15 are controlled by the controller, the labor intensity is reduced, and the action precision is improved.
The telescopic end of the first driving piece 7 is further provided with a displacement sensor connected with the controller in a signal mode, and the controller controls the telescopic end of the first driving piece 7 to stop moving when the telescopic end moves to a set displacement. Namely, when the telescopic end of the first driving piece 7 drives the end cover chuck to move to a set displacement, the end cover chuck clamps the motor end cover 5, and the controller controls the motor end cover to stop moving at the moment. Thus, the first driving piece 7 is controlled more conveniently, and the action precision is ensured.
In order to stop the action in an emergency, the splitting device can be further provided with an emergency stop switch 18 in signal connection with the controller, and a start switch 17 in signal connection with the controller, and when the splitting device starts working, after the motor end cover 5 and the stator 12 are placed, the start switch 17 is directly pressed to realize the start action of the first driving piece 7 and the second driving piece 15.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A motor end cap and stator disassembly apparatus comprising:
a bottom plate (14);
the motor end cover (5) and the stator (12) can be fixed on the motor positioning seat (11);
a plurality of vertical plates (6) arranged on the bottom plate (14), wherein the vertical plates (6) are distributed along the circumferential direction of the motor positioning seat (11);
the motor positioning seat comprises a plurality of end cover chucks which are distributed along the circumferential direction of the motor positioning seat (11), a first driving piece (7) is arranged on each vertical plate (6), and the first driving piece (7) can drive the end cover chucks to mutually approach to a motor end cover (5) on the motor positioning seat (11);
the second driving piece (15) is arranged above the motor positioning seat (11) and the pressure head (16) is fixedly connected with the telescopic end of the second driving piece (15), the second driving piece (15) drives the pressure head (16) to move up and down, and the pressure head (16) can prop against the stator (12);
the motor end cover and stator splitting equipment further comprises a cross rod (1) with two ends fixedly connected with the two vertical plates (6) and two opposite side plates (2) arranged on the cross rod (1), the two first driving pieces (7) can drive the two side plates (2) to slide along the cross rod (1), and the end cover clamping heads are fixed at the bottom ends of the side plates (2);
the pressure head (16) comprises two pressing sheets (4) which are oppositely arranged, a pressing block which can prop against the stator (12) is arranged at the bottom end of each pressing sheet (4), and an avoidance gap is formed between the two pressing sheets (4).
2. The motor end cover and stator splitting device according to claim 1, further comprising a fixing block (13) with a circular groove and a compression spring arranged in the circular groove, wherein the motor positioning seat (11) is arranged in the circular groove, the upper end of the compression spring is propped against the motor positioning seat (11), and the motor positioning seat (11) can slide up and down in the circular groove.
3. The motor end cover and stator splitting device according to claim 2, further comprising a vertically arranged adjusting screw (10) connected with the fixed block (13), wherein the lower end of the adjusting screw (10) abuts against the upper end face of the motor positioning seat (11).
4. The motor end cover and stator splitting device according to claim 1, wherein the motor positioning seat (11) comprises a seat bottom plate and a plurality of positioning columns (11 a) arranged on the upper end face of the seat bottom plate, and the positioning columns (11 a) are distributed along a ring shape.
5. The motor end cover and stator splitting device according to claim 1, wherein the number of the vertical plates (6) and the end cover chucks is two, and the two vertical plates (6) are oppositely arranged.
6. The motor end cover and stator splitting device according to claim 1, further comprising a buffer spring (3) sleeved on the cross bar (1), wherein the buffer spring (3) is located between the two side plates (2).
7. The motor end cover and stator splitting device according to claim 1, further comprising a guide post (9) with one end fixedly connected with the vertical plate (6), wherein the guide post (9) passes through the side plate (2) and the side plate (2) slides along the cross bar (1) and the guide post (9).
8. The apparatus for separating an end cap from a stator of an electric machine according to claim 1, further comprising a controller for controlling the operation of the first driving member (7) and the second driving member (15).
9. The motor end cover and stator splitting device according to claim 8, wherein the telescopic end of the first driving member (7) is further provided with a displacement sensor in signal connection with the controller, and the controller controls the stopping action of the telescopic end of the first driving member (7) when the telescopic end moves to a set displacement.
10. The apparatus of claim 8, further comprising a scram switch (18) and a start switch (17) in signal communication with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029453.6A CN106972706B (en) | 2016-01-14 | 2016-01-14 | Splitting equipment for motor end cover and stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029453.6A CN106972706B (en) | 2016-01-14 | 2016-01-14 | Splitting equipment for motor end cover and stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106972706A CN106972706A (en) | 2017-07-21 |
| CN106972706B true CN106972706B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610029453.6A Active CN106972706B (en) | 2016-01-14 | 2016-01-14 | Splitting equipment for motor end cover and stator |
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| Country | Link |
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| CN (1) | CN106972706B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584259B (en) * | 2017-08-21 | 2020-06-02 | 弗兰德科技（深圳）有限公司 | Disassembly mechanism of base station antenna end cover |
| CN108494183B (en) * | 2018-04-17 | 2019-12-31 | 湘潭大学 | Device for electrically disassembling motor stator winding |
| CN108768096B (en) * | 2018-06-28 | 2023-12-15 | 珠海凯邦电机制造有限公司 | Motor end cover separating device |
| CN111082611B (en) * | 2020-01-14 | 2020-11-10 | 温岭市博伊工具有限公司 | Quick stripping off device of old and useless motor coil copper wire |
| CN113965035B (en) * | 2021-10-26 | 2022-09-20 | 浙江九洲新能源科技有限公司 | Drum cover dismounting tool for hub motor |
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| CN204954424U (en) * | 2015-07-23 | 2016-01-13 | 浙江江潮电机实业有限公司 | Motor end cover turning anchor clamps |
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| JP2002291206A (en) * | 2001-03-26 | 2002-10-04 | Kawasaki Steel Corp | Support system for disassembly and assembly of large electric motor |
| CN103001400A (en) * | 2011-09-13 | 2013-03-27 | 上海南洋电机有限公司 | Assembling and disassembling tool for disk type permanent magnet motors and method for installing motor end covers |
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| CN106972706A (en) | 2017-07-21 |
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