CN108462344B - A kind of dynamic balance calibration device of rotor - Google Patents
A kind of dynamic balance calibration device of rotor Download PDFInfo
- Publication number
- CN108462344B CN108462344B CN201810276303.4A CN201810276303A CN108462344B CN 108462344 B CN108462344 B CN 108462344B CN 201810276303 A CN201810276303 A CN 201810276303A CN 108462344 B CN108462344 B CN 108462344B
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- Prior art keywords
- rotor
- servo motor
- steel
- bead
- counterweight
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000003825 pressing Methods 0.000 claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000011324 bead Substances 0.000 claims description 68
- 230000001360 synchronised effect Effects 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 14
- 238000012937 correction Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Testing Of Balance (AREA)
- Rotational Drive Of Disk (AREA)
Abstract
The invention discloses a kind of dynamic balance calibration devices of rotor, including the steel ball that is separately positioned on left and right two balancing disk at rotor magnetic steel both ends and can be embedded in balancing disk, for embedded hole of the steel ball in balancing disk using the center of balancing disk as the rounded array in the center of circle, the embedded hole circle number that array is arranged on balancing disk is at least a circle；It further include dynamic balancing machine, clamp assemblies, automatic weighing component, electrically-controlled component；Wherein, automatic weighing component send pearl pearl pressing device, the right side that pearl pearl pressing device, sensor is sent to form by left cylinder, addendum cone, automatic clamping chuck, right servo motor, a left side；The electrically-controlled component includes the PLC controller being in communication with each other and CPU, and the PLC controller is connected with electromagnetic valve component, displacement servo motor, right servo motor, sensor, the dynamic balancing machine for controlling all cylinders, and CPU is connected with dynamic balancing machine.The device can greatly reduce the increase of rotor weight caused by balancing disk, and the control operation of counterweight is accurate and reliable.
Description
Technical Field
The invention belongs to the technical field of dynamic balance of a motor rotor, and particularly relates to dynamic balance equipment.
Background
The dynamic balance weight correction of the conventional permanent magnet motor adopts two modes of weight removal and weight increase, and the weight increase mode generally adopts clay as a weight increase material, but the accurate weight of the clay is difficult to realize automation, and the manual weighing is complicated; the weight removing mode is generally adopted by using brass as a configuration disc, the dynamic balance amount of a rotor is corrected by milling, but the brass as a balance weight disc increases the rotational inertia of the whole rotor part by about 20%, which is a great influence parameter for many servo control motors requiring high response speed, and meanwhile, the dynamic balance precision of the rotor is generally required to be controlled within 3 mg in a high-speed motor, and the milling and weight removing precision is difficult to achieve.
Disclosure of Invention
The invention aims to solve the technical problems and provides a dynamic balance correction device of a motor rotor, which can greatly reduce the weight increase of the rotor caused by a counterweight disc, has accurate and reliable counterweight control operation and has outstanding value for realizing continuous automatic production of the dynamic balance accurate correction of the motor rotor.
The technical scheme of the invention is as follows:
a dynamic balance correction device of a motor rotor comprises a left counterweight plate, a right counterweight plate and steel balls, wherein the left counterweight plate and the right counterweight plate are respectively arranged at two ends of rotor magnetic steel, the steel balls can be embedded into the counterweight plates, insert holes of the steel balls in the counterweight plates are in a circular array by taking the center of the counterweight plates as the circle center, and the number of turns of the insert holes arranged on the counterweight plates in an array mode is at least one;
the automatic balancing machine also comprises a dynamic balancing machine, a clamping assembly, an automatic counterweight assembly and an electric control assembly; wherein,
the clamping assembly consists of a slide rail, a main synchronous wheel, an auxiliary synchronous wheel, a synchronous belt, a displacement servo motor, a slide block, an air cylinder A, an air cylinder B, a clamping air cylinder A and a clamping air cylinder B, wherein two ends of the synchronous belt are respectively wound on the main synchronous wheel and the auxiliary synchronous wheel which are driven by the displacement servo motor;
the automatic balance weight assembly comprises a left air cylinder, a top cone, an automatic chuck, a right servo motor, a left bead feeding and pressing device, a right bead feeding and pressing device and a sensor, output shafts of the left air cylinder and the right servo motor are coaxially and oppositely arranged, one end of a rotor shaft of a motor rotor to be corrected is clamped by the automatic chuck on the output shaft of the right servo motor, the other end of the rotor shaft is propped against the top cone on the output shaft of the left air cylinder, the left bead feeding and pressing device and the right bead feeding and pressing device are respectively positioned at two ends of the motor rotor and can press steel beads into corresponding embedded holes in a balance weight disc, the sensor is positioned below rotor magnetic steel, and a detection end of the sensor is over against rotor;
the electric control assembly comprises a PLC controller and a CPU which are communicated with each other, the PLC controller is connected with the electromagnetic valve assemblies, the displacement servo motors, the right servo motor, the sensors and the dynamic balancing machine, and the CPU is connected with the dynamic balancing machine.
Furthermore, the embedding hole in the configuration disc is a conical hole, and the small end of the embedding hole is tightly attached to the end face of the rotor magnetic steel.
Furthermore, the left bead feeding and pressing device and the right bead feeding and pressing device both comprise a base and a cantilever beam positioned on the base, a placing cavity for placing steel beads is arranged in the base, the lower part of the placing cavity is a conical bin, the small end of the conical bin faces and is integrally connected with a cylindrical bin with the same diameter as the small end, the diameter of the cylindrical bin is not less than 3 times of that of the steel ball, the center of the top wall of the cylindrical bin is connected with a ball conveying pipeline provided with a suction pump, the bead feeding pipeline penetrates through the base, extends into the cantilever beam, extends towards the free end of the cantilever beam and then is connected into a transition channel in the cantilever beam, the transition channel is in an upward convex arc shape, the outlet end of the transition channel is communicated with the inlet end of a bead outlet channel which is horizontally arranged, and one end of the intersection close to the ball feeding pipe is also provided with a ball pressing hydraulic rod, and an output shaft of the ball pressing hydraulic rod horizontally extends into the intersection and then pushes out the steel balls along the ball outlet channel and presses the steel balls into the corresponding embedding holes which are rotated in place.
Furthermore, the inner wall of the upper part of the intersection communication part of the transition passage and the bead outlet passage is provided with a round angle protruding towards the inside of the intersection, and the bead outlet passage can only allow one steel bead to pass through.
The invention has the beneficial effects that: the motor rotor with the weight plates attached to the two ends is automatically measured by a dynamic balancing machine, the obtained dynamic balance weight and weight angle data are sent to a CPU for storage and operation, then the detected motor rotor is sent to a position between a top cone and an automatic chuck by a clamping assembly, the motor rotor is fixed by the automatic chuck and the top cone, and at the moment, the CPU calculates the number and the position of new spherical metal beads needing to be pressed into an embedding hole in the rotor weight plate according to the required dynamic balance weight, weight angle and the data of the steel beads (spherical metal beads) per se and sends the data to a PLC; the right servo motor drives a motor rotor to rotate, an initial angle position is determined by a sensor and the motor rotor rotates to a specified angle according to a PLC (programmable logic controller) instruction; spherical metal beads are pressed into a left counterweight plate embedding hole (small hole) of the motor rotor through a left bead feeding and pressing device and pressed into a right counterweight plate small hole of the motor rotor through a right bead feeding and pressing device; if the balance weight plate needs to be pressed into a plurality of spherical metal beads after being detected by the dynamic balancing machine, the balance weight plate is completed by matching the right servo motor with the left bead feeding and bead pressing device according to a PLC instruction. Therefore, when the motor rotor is subjected to dynamic balance correction, the weight increase of the rotor caused by the counterweight disc can be greatly reduced, the counterweight control operation is accurate and reliable, and the motor rotor dynamic balance correction device has a very outstanding value in realizing continuous automatic production.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of a motor rotor provided with a counterweight plate.
Fig. 3 is a schematic view of a structure of an end face of the weight plate.
Fig. 4 is a schematic view of the insert hole of the weight plate.
FIG. 5 is a schematic view of a bead feeding and pressing device.
Element number description: the device comprises a rotor shaft 1, a left counterweight disk 2, rotor magnetic steel 3, a right counterweight disk 4, steel balls 5, a dynamic balancing machine 6, a slide rail 7, a main synchronizing wheel 8, a displacement servo motor 9, a synchronous belt 10, a solenoid valve assembly 11, a cylinder A12, a slide block 13, a cylinder B14, an auxiliary synchronous belt wheel 15, a signal cable 16, a right servo motor 17, an automatic chuck 18, a right bead feeding and pressing device 19, a sensor 20, a motor rotor 21 in counterweight, a left bead feeding and pressing device 22, a tip cone 23, a left cylinder 24, a motor rotor 25 for balance detection, a dynamic balancing machine support 26, a device base 27, a clamping cylinder A28, a clamping cylinder B29, a cantilever beam 30, a base 31, a placing cavity 32, a suction pump 33, a bead feeding pipeline 34, a transition channel 35, a junction 36, a bead outlet channel 37 and a bead pressing hydraulic rod 38.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-3, the dynamic balance correction device of the motor rotor comprises a left weight plate 2 and a right weight plate 4 which are respectively arranged at two ends of a rotor magnetic steel 3, and steel balls 5 which can be embedded into the weight plates, wherein the embedding holes of the steel balls 5 in the weight plates are in a circular array by taking the center of the weight plates as the circle center, the number of turns of the embedding holes arranged on the weight plates in an array mode is at least one, and the weight plates are light weight plates, such as high temperature resistant nylon.
The automatic balancing machine further comprises a dynamic balancing machine 6, a clamping assembly, an automatic counterweight assembly and an electric control assembly.
The clamping assembly consists of a slide rail 7, a main synchronizing wheel 8, an auxiliary synchronizing wheel, a synchronous belt 10, a displacement servo motor 9, a slide block 13, a cylinder A12, a cylinder B14, a clamping cylinder A28 and a clamping cylinder B29, wherein two ends of the synchronous belt 10 are respectively wound on the main synchronizing wheel 8 and the auxiliary synchronizing wheel driven by the displacement servo motor 9, the rear end part of the slide block 13 is fixed on the synchronous belt 10 between the main synchronizing wheel 8 and the auxiliary synchronizing wheel, the front end part of the slide block 13 is in sliding fit with the slide rail 7 parallel to the synchronous belt 10, the left side and the right side of the slide block 13 are respectively provided with the cylinder A12 and the cylinder B14, output shafts of the cylinder A12 and the cylinder B14 are respectively connected with the clamping cylinder A28 and the clamping cylinder B29 so as to drive the clamping cylinder A28 and the clamping cylinder B29 to be close to or far away from a motor rotor, output shaft ends of the clamping cylinder A28 and the clamping cylinder B, the clamping part is used for driving the clamping part to move towards the motor rotor, the clamping part can be an automatic clamping element, such as a mechanical arm, and can also be a simple plate, when the clamping part is in a plate structure, the clamping cylinder A28 and the clamping cylinder B29 need to be arranged perpendicular to the axial lines of the cylinder A12 and the cylinder B14, and the output shafts of the clamping cylinder A28 and the clamping cylinder B29 are arranged oppositely, so that the two plates can be tightly attached to the two ends of the rotor to clamp the motor rotor and then move.
The automatic counterweight component is composed of a left air cylinder 24, a tip cone 23, an automatic chuck 18, a right servo motor 17, a left bead feeding and pressing device 22, a right bead feeding and pressing device 19 and a sensor 20, output shafts of the left air cylinder 24 and the right servo motor 17 are coaxially arranged in opposite directions, one end of a rotor shaft 1 of a motor rotor to be corrected is clamped by the automatic chuck 18 on an output shaft of the right servo motor 17, the other end of the rotor shaft is jacked by the tip cone 23 on the output shaft of the left air cylinder 24, the left bead feeding and pressing device 22 and the right bead feeding and pressing device 19 are respectively positioned at two ends of the motor rotor and can press steel balls 5 into corresponding embedding holes in a counterweight plate, and the sensor 20 is positioned below rotor magnetic steel 3 and the detection end of the sensor is right opposite to.
The electric control assembly comprises a PLC controller and a CPU which are communicated with each other, the PLC controller is connected with the electromagnetic valve assembly 11, the displacement servo motor 9, the right servo motor 17, the sensor 20 and the dynamic balancing machine 6 which are used for controlling all the air cylinders, and the CPU is connected with the dynamic balancing machine 6.
Furthermore, the embedding hole in the configuration disc is a conical hole, and the small end of the embedding hole is tightly attached to the end face of the rotor magnetic steel 3, so that the steel ball 5 is more tightly and firmly embedded.
Further, the left bead feeding and pressing device 22 and the right bead feeding and pressing device 19 both comprise a base 31 and a cantilever beam 30 positioned on the base 31, a placing cavity 32 for placing the steel beads 5 is arranged in the base 31, the lower part of the placing cavity 32 is a conical bin, the small end of the conical bin faces towards and is integrally connected with a cylindrical bin with the same diameter as the small end, the diameter of the cylindrical bin is not less than 3 times of the diameter D of the steel beads 5, the top wall center of the cylindrical bin is connected with a bead feeding pipeline 34 provided with a suction pump 33, the bead feeding pipeline 34 penetrates through the base 31, extends into the cantilever beam 30 and extends towards the free end of the cantilever beam 30 and then is connected into a transition channel 35 in the cantilever beam 30, the diameter of the cylindrical bin is not less than 3 times of the diameter of the steel beads 5, so that the blocking or low efficiency of the steel beads 5 at the pipe mouth when entering the bead feeding pipeline 34 from the placing cavity. The outlet end of the transition channel 35 is communicated with the inlet end of a bead outlet channel 37 which is horizontally arranged, a bead pressing hydraulic rod 38 is further arranged at one end of the intersection 36 close to the bead delivery pipe, an output shaft of the bead pressing hydraulic rod 38 horizontally extends into the intersection 36 and then ejects out the steel beads along the bead outlet channel 37 and presses the steel beads into corresponding embedding holes which are operated in place, the transition channel 35 is in an upward convex arc shape, so that the steel beads 5 can be conveniently buffered in the transition channel 35 after coming out from the bead delivery pipe 34, and the steel beads 5 can be prevented from being blocked when entering the intersection 36. The bead feeding and pressing device with the structural design has high bead feeding efficiency, can greatly reduce the blockage at the joint of a pipeline or a channel in the bead feeding process, and is particularly important for conveying steel beads 5. The steel balls 5 of the embodiment can be continuously conveyed, the steel balls 5 are densely distributed in corresponding pipelines or channels, the steel balls 5 are rapidly extruded into the embedding holes one by one, a plurality of steel balls 5 can be sucked at one time, and the introduction amount of the steel balls 5 can be flexibly determined according to the size and the time length of the suction force set by the suction pump 33.
Furthermore, the inner wall of the upper portion of the intersection of the transition passage 35 and the ball outlet passage 37 is provided with a round angle protruding towards the inside of the intersection 36, the ball outlet passage 37 can only allow one steel ball 5 to pass through, and the round angle is set to prevent the steel ball 5 from being blocked when entering the ball outlet passage 37, so that the situation that one steel ball 5 cannot enter when a plurality of steel balls 5 stay at the intersection 36 is avoided.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. The utility model provides a dynamic balance correcting unit of electric motor rotor which characterized in that: the rotor comprises a left counterweight plate, a right counterweight plate and steel balls, wherein the left counterweight plate and the right counterweight plate are respectively arranged at two ends of rotor magnetic steel, the steel balls can be embedded into the counterweight plates, insert holes of the steel balls in the counterweight plates are circularly arrayed by taking the center of the counterweight plates as the circle center, and the number of turns of the insert holes arrayed on the counterweight plates is at least one;
the automatic balancing machine also comprises a dynamic balancing machine, a clamping assembly, an automatic counterweight assembly and an electric control assembly; wherein,
the clamping assembly consists of a slide rail, a main synchronous wheel, an auxiliary synchronous wheel, a synchronous belt, a displacement servo motor, a slide block, an air cylinder A, an air cylinder B, a clamping air cylinder A and a clamping air cylinder B, wherein two ends of the synchronous belt are respectively wound on the main synchronous wheel and the auxiliary synchronous wheel which are driven by the displacement servo motor;
the automatic balance weight assembly comprises a left air cylinder, a top cone, an automatic chuck, a right servo motor, a left bead feeding and pressing device, a right bead feeding and pressing device and a sensor, output shafts of the left air cylinder and the right servo motor are coaxially and oppositely arranged, one end of a rotor shaft of a motor rotor to be corrected is clamped by the automatic chuck on the output shaft of the right servo motor, the other end of the rotor shaft is propped against the top cone on the output shaft of the left air cylinder, the left bead feeding and pressing device and the right bead feeding and pressing device are respectively positioned at two ends of the motor rotor and can press steel beads into corresponding embedded holes in a balance weight disc, the sensor is positioned below rotor magnetic steel, and a detection end of the sensor is over against rotor;
the electric control assembly comprises a PLC controller and a CPU which are communicated with each other, the PLC controller is connected with the electromagnetic valve assemblies, the displacement servo motors, the right servo motor, the sensors and the dynamic balancing machine, and the CPU is connected with the dynamic balancing machine.
2. The dynamic balance correction device of the rotor of an electric machine according to claim 1, characterized in that: the embedding hole in the configuration disc is a conical hole, and the small end of the embedding hole is tightly attached to the end face of the rotor magnetic steel.
3. The dynamic balance correction device of the rotor of an electric machine according to claim 1 or 2, characterized in that: the left bead feeding and pressing device and the right bead feeding and pressing device both comprise a base and a cantilever beam positioned on the base, a placing cavity for placing steel beads is arranged in the base, the lower part of the placing cavity is a conical bin, the small end of the conical bin faces and is integrally connected with a cylindrical bin with the same diameter as the small end, the diameter of the cylindrical bin is not less than 3 times of that of the steel ball, the center of the top wall of the cylindrical bin is connected with a ball conveying pipeline provided with a suction pump, the bead feeding pipeline penetrates through the base, extends into the cantilever beam, extends towards the free end of the cantilever beam and then is connected into a transition channel in the cantilever beam, the transition channel is in an upward convex arc shape, the outlet end of the transition channel is communicated with the inlet end of a bead outlet channel which is horizontally arranged, and one end of the intersection close to the ball feeding pipe is also provided with a ball pressing hydraulic rod, and an output shaft of the ball pressing hydraulic rod horizontally extends into the intersection and then pushes out the steel balls along the ball outlet channel and presses the steel balls into the corresponding embedding holes which are rotated in place.
4. The dynamic balance correction device of the rotor of an electric machine according to claim 3, characterized in that: the inner wall of the upper part of the intersection communication part of the transition passage and the bead outlet passage is provided with a round angle protruding towards the inside of the intersection, and the bead outlet passage can only allow one steel bead to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276303.4A CN108462344B (en) | 2018-03-30 | 2018-03-30 | A kind of dynamic balance calibration device of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276303.4A CN108462344B (en) | 2018-03-30 | 2018-03-30 | A kind of dynamic balance calibration device of rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108462344A CN108462344A (en) | 2018-08-28 |
| CN108462344B true CN108462344B (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276303.4A Expired - Fee Related CN108462344B (en) | 2018-03-30 | 2018-03-30 | A kind of dynamic balance calibration device of rotor |
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| Country | Link |
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| CN (1) | CN108462344B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114977633A (en) * | 2022-07-28 | 2022-08-30 | 南昌三瑞智能科技有限公司 | Motor rotor capable of intelligently adjusting dynamic balance and dynamic balance adjusting method |
| CN116358787B (en) * | 2023-05-26 | 2023-08-04 | 江苏恒康机电有限公司 | Automatic correction equipment and method for motor dynamic balance test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5780945A (en) * | 1997-03-24 | 1998-07-14 | Emerson Electric Co. | Switched reluctance machine balancing system: material removal approach and material addition approach |
| CN105207428A (en) * | 2015-10-27 | 2015-12-30 | 南阳微特防爆电机有限公司 | Dynamic balancing weight structure and dynamic balancing method for motor rotor as well as test device |
| CN105429403A (en) * | 2015-11-30 | 2016-03-23 | 天津市松正电动汽车技术股份有限公司 | Motor rotor dynamic balance structure and rotor dynamic balance adjusting method |
| CN205123526U (en) * | 2015-12-08 | 2016-03-30 | 卧龙电气集团股份有限公司 | Permanent magnet rotor of balanced post in area |
| CN206524737U (en) * | 2017-01-20 | 2017-09-26 | 鹤山市长鸿电机有限公司 | A kind of rotor dynamic balancing machine |
| DE102017005885A1 (en) * | 2017-06-22 | 2018-01-25 | Daimler Ag | Rotor for an electrical machine, in particular a motor vehicle |
-
2018
- 2018-03-30 CN CN201810276303.4A patent/CN108462344B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5780945A (en) * | 1997-03-24 | 1998-07-14 | Emerson Electric Co. | Switched reluctance machine balancing system: material removal approach and material addition approach |
| CN105207428A (en) * | 2015-10-27 | 2015-12-30 | 南阳微特防爆电机有限公司 | Dynamic balancing weight structure and dynamic balancing method for motor rotor as well as test device |
| CN105429403A (en) * | 2015-11-30 | 2016-03-23 | 天津市松正电动汽车技术股份有限公司 | Motor rotor dynamic balance structure and rotor dynamic balance adjusting method |
| CN205123526U (en) * | 2015-12-08 | 2016-03-30 | 卧龙电气集团股份有限公司 | Permanent magnet rotor of balanced post in area |
| CN206524737U (en) * | 2017-01-20 | 2017-09-26 | 鹤山市长鸿电机有限公司 | A kind of rotor dynamic balancing machine |
| DE102017005885A1 (en) * | 2017-06-22 | 2018-01-25 | Daimler Ag | Rotor for an electrical machine, in particular a motor vehicle |
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| CN108462344A (en) | 2018-08-28 |
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Effective date of registration: 20210319 Address after: 400042 3-2, building 3, No.16 Huangyang Road, Jiulongpo District, Chongqing Patentee after: Ge Jianyong Address before: 402566 no.388, Jinchuan Avenue, Dongcheng Street, Tongliang District, Chongqing Patentee before: CHONGQING CHANGJI TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20190730 |