CN110190716B - Device for removing stator winding of motor without damage and stator winding removing method - Google Patents
Device for removing stator winding of motor without damage and stator winding removing method Download PDFInfo
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- CN110190716B CN110190716B CN201910479240.7A CN201910479240A CN110190716B CN 110190716 B CN110190716 B CN 110190716B CN 201910479240 A CN201910479240 A CN 201910479240A CN 110190716 B CN110190716 B CN 110190716B
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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
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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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Abstract
The invention provides a device for dismantling a motor stator winding without damage and a stator winding dismantling method. The method comprises the following steps: a supporting seat; a lower clamp; an upper clamp; a first core positioning device configured to position one end or both ends of the stator core having the yoke portion positioned at the outer side; a second core positioning device configured to position one end or both ends of the stator core having the yoke portion positioned inside; a shearing device; the rotating device is arranged at the front side of the lower clamp and is provided with a base which is slidably arranged on the supporting seat, a plurality of rotating rods which are rotatably arranged on the base and a driving device which is arranged in the base and drives the rotating rods to rotate; the plurality of rotating rods are uniformly distributed along the circumferential direction of the stator core, and the rear end of each rotating rod is configured to be connected with one or more conductors in the middle of the wire cluster in one stator slot so as to enable the one or more conductors to rotate; loosening means; and a pull-out device. The winding is convenient to dismantle and the stator iron core can be protected.
Description
Technical Field
The invention relates to the field of motors, in particular to a device for removing a motor stator winding without damage and a stator winding removing method.
Background
At present, the winding burning and rewinding operation experience of an over-motor (most of the motor is a three-phase asynchronous motor) can be observed, and the normal operation service life of the motor after winding rewinding maintenance is greatly shortened compared with the original normal operation service life even if the wire inserting process and the assembling process meet the requirements. Moreover, the more the motor is subjected to maintenance, the more the service life of the motor is shortened, and the more the motor is obviously. The reason for this is that, in the present case, the method of removing the burnt windings of the motor is not unusual: open fire heating, electric furnace baking and less frequent heavy current heating. However, most operators heat the water by experience when using the three methods, and the temperature of the water is rarely controlled by a professional temperature controller. Therefore, the difference caused by different degrees of experience often causes the heating temperature to exceed the maximum safe value that the stator core can bear (the value of the ordinary motor is about 180-! Furthermore, after a hot baking process at high temperature, the silicon steel sheets of the stator core are "annealed" one time, resulting in a significant reduction of the magnetic flux of the silicon steel sheets of the core! The net result is a large increase in iron loss for the motor undergoing such maintenance! This is also exactly the root cause of the above fault! Therefore, when the motor winding is rewound and maintained, the procedures such as winding detachment and paint dipping which are seemingly irrelevant and require temperature heating treatment are paid attention to while the wire embedding process and the whole machine assembly process on the surface are ensured to meet the requirements, otherwise the remaining sequelae are not ignored!
Moreover, most of the existing stator winding disassembling methods are that after one end of the stator winding is completely cut off by a cutting tool (such as a manual steel bar shear), the other end of the stator winding is directly pulled out by a wire cutter in a manual mode or a stator winding pulling tool. The inventor finds that such direct pulling out of the stator winding is likely to damage the inner wall of the stator slot and also reduces the service life of the motor after maintenance.
Disclosure of Invention
The invention aims to overcome at least one defect of the existing motor stator winding dismantling, and provides a device for dismantling a motor stator winding without damage and a stator winding dismantling method, which can prevent overlarge adhesion force between a winding and a stator slot wall and prevent the stator winding from scratching and damaging the inner wall of the stator slot in the pulling-out process; moreover, the device has simple structure, the stator winding is convenient to remove, and can be removed at any time and any place, and people without motor working experience can also be ensured to remove without damage.
To this end, in one aspect, the present invention provides a device for nondestructive removal of a stator winding of an electric machine, the stator having a stator core with a plurality of stator slots thereon and a winding comprising a cluster of wires passing through each of the stator slots; the device for removing the stator winding of the motor without damage comprises:
a supporting seat;
a lower clamp installed on the support base and configured to clamp a lower circumferential wall surface of the stator core placed horizontally;
an upper jig which is provided on an upper side of the lower jig so as to be movable up and down and is configured to clamp an upper peripheral wall surface of the stator core placed horizontally;
a first core positioning device configured to position one end or both ends of the stator core having a yoke portion positioned at an outer side;
a second core positioning device configured to position one end or both ends of the stator core having the yoke portion positioned inside;
a shearing device configured to shear a winding on the stator core;
the rotating device is arranged on the front side of the lower clamp and is provided with a base which is slidably arranged on the supporting seat, a plurality of rotating rods which are rotatably arranged on the base and a driving device which is arranged in the base and drives the rotating rods to rotate; the rotating rods are uniformly distributed along the circumferential direction of the stator core, and the rear end of each rotating rod is configured to be connected with one or more conductors in the middle of the wire cluster in one stator slot so as to enable the one or more conductors to rotate;
-loosening means configured to move the remaining conductors of said wire cluster in each of said stator slots in a radial direction of the stator slot; and
and the pulling-out device is arranged on the supporting seat and is configured to drive the base to move along the front-back direction, and at least when the rear end of each rotating rod is connected with the rest conductors of the winding, the base is driven to move forwards so as to pull out the winding on the stator core.
Further, each of the rotating rods is a lead screw, the base has a plurality of thread blocks, and each of the lead screws is mounted to one of the thread blocks to simultaneously move forward when rotated, so that the one or more conductors are rotated and pulled out of the conductor cluster.
Further, the first core positioning device includes:
the first stop block is arranged at the front end of the lower clamp in a vertically sliding manner;
the second stop block is arranged on the upper clamp in a vertically sliding manner and is positioned at the front end of the upper clamp; and the first stopper and the second stopper are configured to position the front end of the stator core, of which the yoke is located at the outer side.
Further, the second core positioning means includes:
the hydraulic rod is arranged on the base and positioned in the middle of the rotating rods;
the positioning disc is provided with a base disc installed at the extending end of the hydraulic rod, and a plurality of blocking pieces are arranged on the base disc in a telescopic mode along the radial direction of the stator core, so that the base disc moves to the back of the front end of the stator core, and the blocking pieces extend out of the base disc and are abutted to yoke portions of the stator core in a contact mode.
Further, the device for removing the stator winding of the motor without damage further comprises: a lifting device configured to adjust a height of the rotating device.
Further, the shearing device is a steel wire scissors, and the loosening device is a pneumatic clamp.
Further, the base is mounted on the supporting seat through a sliding rail; and is
The pulling-out device is a telescopic cylinder, and the base is connected to an output shaft of the telescopic cylinder;
on the other hand, the invention also provides a stator winding dismantling method adopting the device for dismantling the motor stator winding without damage, which comprises the following steps:
step A: cutting off partial conductors in a front connecting end and a rear connecting end of a winding on the stator core by using the cutting device so as to separate one or more conductors in the middle of the wire cluster in each stator slot from the winding;
and B: rotating the one or more conductors in the plurality of stator slots and pulling out the one or more conductors using the rotating means and the pulling-out means or using the rotating means;
and C: cutting off all the connecting ends at the rear side of the winding by using the cutting device;
step D: moving the remaining conductors of the wire cluster in each of the stator slots in a radial direction of the stator slot using the loosening means;
step E: and drawing out the winding by using the drawing-out device and the rotating device.
Further, in the step D:
the loosening device is a pneumatic clamp, the pneumatic clamp is used for clamping the winding in the vertical direction, the horizontal direction and the oblique vertical direction of each stator slot in sequence, and the winding is opened and closed for several times, so that the other conductors of the wire cluster in each stator slot move in the radial direction of the stator slot.
Further, the rotating device and the pulling device are used for rotating the one or more conductors in the plurality of stator slots and pulling out the one or more conductors, and the method specifically comprises the following steps:
rotating the one or more conductors in the plurality of stator slots about one direction or alternately about two directions using the rotating device;
and driving the base to move forwards by using the pulling-out device.
Further, each of the rotating rods is a screw rod, the base has a plurality of thread blocks thereon, and each of the screw rods is mounted to one of the thread blocks to rotate the one or more conductors in the plurality of stator slots and pull out the one or more conductors by the rotating means.
According to the device and the method for dismantling the stator winding of the motor without damage, the conductors in the middle of the winding can be dismantled firstly, then the winding is loosened, the friction force, the adhesive force and the like between the winding and the inner wall of the stator slot are reduced, the adhesion force and the friction force between the winding and the wall of the stator slot can be prevented from being too large, and the stator winding is prevented from scratching and damaging the inner wall of the stator slot in the pulling-out process; moreover, the device has simple structure, the stator winding is convenient to remove, great force is not needed in the removing process, the stator winding can be manually removed and removed at any time and any place, and people without motor working experience can be ensured to remove without damage.
Furthermore, the defects that the existing electric stator winding pulling and pulling equipment is complex in structure, high in cost, incapable of being applied to places without power supply and limited in use, and the stator needs to be fixed again after the electric and manual stator winding pulling and pulling equipment pulls out a circle of winding every time, so that the operation is troublesome and the working efficiency is relatively low can be overcome. The invention can draw out the winding of the stator slot by using small force after rotationally drawing out part of the conductor in each stator slot, and has simple operation and high working efficiency.
Furthermore, the front end of the stator is only required to be positioned, the stator core positioning device is applicable to stator cores with different lengths, and the arrangement of the upper clamp and the lower clamp can be used for stators with different diameters. Furthermore, the stator core structure can also be suitable for different types of stator cores, such as stator cores with yoke parts positioned on the inner side and the outer side, and the application range is wide.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of an apparatus for non-destructive removal of stator windings of an electric machine in accordance with one embodiment of the present invention;
FIG. 2 is a schematic partial block diagram of the apparatus for intact removal of the stator windings of an electric machine shown in FIG. 1;
fig. 3 is a schematic partial block diagram of the apparatus for intact removal of the stator windings of an electric machine shown in fig. 1.
Detailed Description
Fig. 1 is a schematic block diagram of an apparatus for intact removal of stator windings of an electrical machine according to one embodiment of the invention. As shown in fig. 1, and with reference to fig. 2 and 3, an embodiment of the present invention provides a device for intact removal of stator windings of an electric machine. The stator has a stator core with a plurality of stator slots and a winding including a cluster of wires passing through each stator slot. The device for nondestructive dismantling of the motor stator winding comprises a support seat 20, a lower clamp 21, an upper clamp 22, a first iron core positioning device, a second iron core positioning device, a shearing device, a rotating device 30, a loosening device and a pulling-out device 70.
The lower jig 21 is attached to the support base 20, and the lower jig 21 is arranged to clamp the lower peripheral wall surface of the stator core placed horizontally. The upper jig 22 is provided on the upper side of the lower jig 21 so as to be movable up and down, and is configured to clamp the upper peripheral wall surface of the stator core placed horizontally. The first core positioning device is configured to position one end or both ends of the stator core whose yoke portion is located at the outside. The second core positioning device is configured to position one end or both ends of the stator core having the yoke portion positioned inside. That is, after the stator core is horizontally placed on the lower fixture 21, the upper fixture 22 may be moved downward to compress the stator core, and then the front end of the corresponding core is fixed by using the first core positioning device or the front end of the corresponding core is fixed by using the second core positioning device as needed.
The shearing device is configured to shear the windings on the stator core. The rotating device 30 is disposed at the front side of the lower clamp 21, and the rotating device 30 has a base 31 slidably mounted on the support base 20, a plurality of rotating rods 32 rotatably mounted on the base 31, and a driving device mounted in the base 31 and driving the rotating rods 32 to rotate; and a plurality of rotating rods 32 are uniformly distributed along the circumferential direction of the stator core, and the rear end of each rotating rod 32 is configured to be connected with one or more conductors at the middle part of the wire cluster in one stator slot, so that the one or more conductors rotate. The loosening means are arranged to move the remaining conductors of the wire cluster in each stator slot in a radial direction of the stator slot. The drawing device 70 is installed on the support base 20, and is configured to move the base 31 in the front-rear direction, and to draw the winding on the stator core by moving the base 31 forward at least when the rear end of each rotating rod 32 is connected to the remaining conductors of the winding.
In some embodiments of the present invention, each of the rotating rods 32 is a threaded rod, and the base 31 has a plurality of threaded blocks, each of which is mounted to one of the threaded blocks to simultaneously move forward when rotated to rotate and pull one or more conductors out of the conductor cluster. That is, the rotating device 30 alone may be used to rotate and pull the one or more conductors from the conductor bundle. Of course, when each of the rotating rods 32 has only a rotating function, the rotating device 30 can be pulled to move forward to pull one or more conductors out of the conductor cluster while each of the rotating rods 32 rotates.
In this embodiment, if the number of the rotating rods 32 is less than the number of the stator slots, the rotation can be repeated twice or even more times to pull the one or more conductors in each stator slot out of the conductor cluster. If the number of the rotation bar 32 is more than the number of the stator slots, a part of the rotation bar 32 may be idled. For better protection of the stator core, the conductor or conductors may be pulled from the conductor cluster from each stator slot a plurality of times, and then the remaining conductors may be pulled from all stator slots simultaneously.
In some embodiments of the present invention, the first core positioning means may comprise a first stopper and a second stopper 41. The first stopper is provided at the front end of the lower jig 21 so as to be vertically slidable. The second stopper 41 is slidably disposed on the upper jig 22 in the up-down direction and is located at the front end of the upper jig 22; and the first and second stoppers 41 are arranged to position the front end of the stator core with the yoke portion positioned outside. The second core positioning device may include a hydraulic rod 42 and a positioning plate. The hydraulic rod 42 is mounted to the base 31 and is located in the middle of the plurality of turning rods 32. The positioning plate has a base plate 43 mounted on the protruding end of the hydraulic rod 42, and a plurality of flaps 44 telescopically provided to the base plate 43 in the radial direction of the stator core, so that after the base plate 43 moves to the front end of the stator core, the flaps 44 protrude out of the base plate 43 to be in contact abutment with the yoke portion of the stator core. The base disc 43 and the telescopic blocking sheet 44 are arranged, so that the circumferential size of the positioning disc can be reduced without using a second iron core positioning device, and the influence on the rotating rods 32 is reduced.
In some embodiments of the invention, the means for atraumatically removing the stator winding of the electrical machine further comprise lifting means configured to adjust the height of the rotating means 30. Furthermore, the hydraulic rod 42 axis can be aligned with the stator core axis, and the stator core can be suitable for stator cores with different diameters. Specifically, when removing windings from a larger diameter stator core, the rotary device 30 can be raised with the hydraulic rod 42 axis aligned with the stator core axis. When the windings are removed from a smaller diameter stator core, the rotary device 30 can be lowered with the hydraulic rod 42 axis aligned with the stator core axis. Further, the base 31 may be mounted to the support base 20 by a slide rail; the drawing device 70 is a telescopic cylinder, and the base 31 is connected to an output shaft of the telescopic cylinder; the shearing device is a steel wire scissors, and the loosening device is a pneumatic clamp.
The embodiment of the invention also provides a stator winding dismantling method adopting any device for dismantling the motor stator winding without damage, which comprises the following steps:
step A: and performing shearing operation on partial conductors in the front-side connecting end and the rear-side connecting end of the winding on the stator core by using a shearing device so as to separate one or more conductors in the middle of the wire cluster in each stator slot from the winding. The conductor or conductors separating the middle of the wire cluster in each stator slot can be easily pulled out.
And B: one or more conductors in the plurality of stator slots are rotated and one or more conductors are pulled out using the rotating means 30 and the pulling means 70 or using the rotating means 30. The conductor cluster can have a certain loose space by rotating and extracting the conductor or the conductors.
And C: and (4) completely shearing the rear connecting end of the winding by utilizing a shearing device. Step A and step B can be circularly performed for a plurality of times before step C.
Step D: the remaining conductors of the conductor cluster in each stator slot are moved in the radial direction of the stator slot by means of a loosening device. The loosening device is a pneumatic clamp, the winding is clamped by the pneumatic clamp in the vertical direction, the horizontal direction and the oblique vertical direction of each stator slot in sequence, and the winding is opened and closed for several times, so that the other conductors of the conductor cluster in each stator slot move in the radial direction of the stator slot.
Step E: the winding is pulled out by means of the pulling-out device 70 and the rotating device 30. Specifically, the rotating rod 32 of the rotating device 30 does not rotate, the rotating rod 32 of the rotating device 30 is connected with the front ends of the other windings, and the pulling-out device 70 drives the rotating device 30 to move, so that the windings can be pulled out.
In some embodiments of the present invention, rotating the one or more conductors in the plurality of stator slots and pulling out the one or more conductors using the rotating device 30 and the pulling-out device 70 specifically includes: rotating one or more conductors in the plurality of stator slots in one direction or alternately in two directions by using a rotating device 30; the base 31 is moved forward by the drawing device 70. Bidirectional rotation is more favorable to the not hard up and pull out of conductor, and can protect stator core better. In other embodiments of the present invention, each rotating rod 32 is a threaded rod, and the base 31 has a plurality of threaded blocks, each threaded rod being mounted to one of the threaded blocks for rotating one or more conductors in a plurality of stator slots and pulling out one or more conductors using the rotating device 30.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A device for nondestructive removal of a stator winding of an electrical machine, the stator having a stator core with a plurality of stator slots and a winding including a cluster of wires passing through each of the stator slots; the device for dismantling the stator winding of the motor without damage is characterized by comprising:
a supporting seat;
a lower clamp installed on the support base and configured to clamp a lower circumferential wall surface of the stator core placed horizontally;
an upper jig which is provided on an upper side of the lower jig so as to be movable up and down and is configured to clamp an upper peripheral wall surface of the stator core placed horizontally;
a first core positioning device configured to position one end or both ends of the stator core having a yoke portion positioned at an outer side;
a second core positioning device configured to position one end or both ends of the stator core having the yoke portion positioned inside;
a shearing device configured to shear a winding on the stator core;
the rotating device is arranged on the front side of the lower clamp and is provided with a base which is slidably arranged on the supporting seat, a plurality of rotating rods which are rotatably arranged on the base and a driving device which is arranged in the base and drives the rotating rods to rotate; the rotating rods are uniformly distributed along the circumferential direction of the stator core, and the rear end of each rotating rod is configured to be connected with one or more conductors in the middle of the wire cluster in one stator slot so as to enable the one or more conductors to rotate;
-loosening means configured to move the remaining conductors of said wire cluster in each of said stator slots in a radial direction of the stator slot; and
and the pulling-out device is arranged on the supporting seat and is configured to drive the base to move along the front-back direction, and at least when the rear end of each rotating rod is connected with the rest conductors of the winding, the base is driven to move forwards so as to pull out the winding on the stator core.
2. The device for damage-free removal of stator windings of an electric machine according to claim 1,
each rotating rod is a lead screw, a plurality of thread blocks are arranged on the base, and each lead screw is arranged on one thread block and moves forwards simultaneously when rotating, so that the one or more conductors rotate and are pulled out of the conductor cluster.
3. The device for damage-free removal of a stator winding of an electric machine according to claim 1, wherein the first core positioning means comprises:
the first stop block is arranged at the front end of the lower clamp in a vertically sliding manner; and
the second stop block is arranged on the upper clamp in a vertically sliding manner and is positioned at the front end of the upper clamp; and the first stopper and the second stopper are configured to position the front end of the stator core, of which the yoke is located at the outer side.
4. The device for damage-free removal of a stator winding of an electric machine according to claim 1, wherein the second core positioning means comprises:
the hydraulic rod is arranged on the base and positioned in the middle of the rotating rods;
the positioning disc is provided with a base disc installed at the extending end of the hydraulic rod, and a plurality of blocking pieces are arranged on the base disc in a telescopic mode along the radial direction of the stator core, so that the base disc moves to the back of the front end of the stator core, and the blocking pieces extend out of the base disc and are abutted to yoke portions of the stator core in a contact mode.
5. The device for damage-free removal of stator windings of an electric machine according to claim 1, further comprising:
a lifting device configured to adjust a height of the rotating device.
6. The device for damage-free removal of stator windings of an electric machine according to claim 1,
the base is arranged on the supporting seat through a sliding rail; and is
The pulling-out device is a telescopic cylinder, and the base is connected to an output shaft of the telescopic cylinder;
the shearing device is a steel wire scissors, and the loosening device is a pneumatic clamp.
7. A stator winding dismantling method using the apparatus for nondestructive dismantling of stator winding of electric machine according to any of claims 1 to 6, comprising:
step A: cutting off partial conductors in a front connecting end and a rear connecting end of a winding on the stator core by using the cutting device so as to separate one or more conductors in the middle of the wire cluster in each stator slot from the winding;
and B: rotating the one or more conductors in the plurality of stator slots and pulling out the one or more conductors using the rotating means and the pulling-out means or using the rotating means;
and C: cutting off all the connecting ends at the rear side of the winding by using the cutting device;
step D: moving the remaining conductors of the wire cluster in each of the stator slots in a radial direction of the stator slot using the loosening means;
step E: and drawing out the winding by using the drawing-out device and the rotating device.
8. A stator winding removal method according to claim 7, wherein in step D:
the loosening device is a pneumatic clamp, the pneumatic clamp is used for clamping the winding in the vertical direction, the horizontal direction and the oblique vertical direction of each stator slot in sequence, and the winding is opened and closed for several times, so that the other conductors of the wire cluster in each stator slot move in the radial direction of the stator slot.
9. A stator winding removal method according to claim 7,
rotating the one or more conductors in the plurality of stator slots and pulling out the one or more conductors by using the rotating device and the pulling-out device, specifically comprising:
rotating the one or more conductors in the plurality of stator slots about one direction or alternately about two directions using the rotating device;
and driving the base to move forwards by using the pulling-out device.
10. A stator winding removal method according to claim 7,
each of the rotation rods is a screw rod, the base has a plurality of thread blocks thereon, and each of the screw rods is mounted to one of the thread blocks to rotate the one or more conductors in the plurality of stator slots and pull out the one or more conductors using the rotating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479240.7A CN110190716B (en) | 2019-06-04 | 2019-06-04 | Device for removing stator winding of motor without damage and stator winding removing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910479240.7A CN110190716B (en) | 2019-06-04 | 2019-06-04 | Device for removing stator winding of motor without damage and stator winding removing method |
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| CN110190716A CN110190716A (en) | 2019-08-30 |
| CN110190716B true CN110190716B (en) | 2020-07-03 |
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| CN113270981B (en) * | 2021-07-07 | 2022-06-24 | 浙江天工电机有限公司 | Device of taking out stitches based on motor quick maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3911490C1 (en) * | 1989-04-08 | 1990-10-11 | Emscher-Metall Karl Lisecki Gmbh, 4650 Gelsenkirchen, De | Apparatus for recovering copper during the scrapping of electric motors |
| US6191542B1 (en) * | 1999-11-12 | 2001-02-20 | International Business Machines Corporation | Method and apparatus for cleaning a DC motor commutator-brush interface |
| CN202309403U (en) * | 2011-10-14 | 2012-07-04 | 天津百利二通机械有限公司 | Special tool for disassembly of motor stator installed in motor-driven device |
| CN104600919B (en) * | 2015-02-13 | 2016-10-26 | 合肥工业大学 | Motor stator winding enamel-covered wire and iron core separation device and separation method |
| KR20170009262A (en) * | 2015-07-16 | 2017-01-25 | 주식회사 금화피에스시 | Device attaching and detaching gear box torque arm or rubber bush for generator |
| CN106230200B (en) * | 2016-08-30 | 2018-08-24 | 福建永强力加动力设备有限公司 | Stator of small generator winding unwinder tool structure |
| CN206023508U (en) * | 2016-08-30 | 2017-03-15 | 福建永强力加动力设备有限公司 | Stator of small generator winding unwinder tool structure |
| CN107404200A (en) * | 2017-09-19 | 2017-11-28 | 长电科技（滁州）有限公司 | A kind of motor provision for disengagement and method for dismounting |
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