CN108768059B - Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor - Google Patents
Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor Download PDFInfo
- Publication number
- CN108768059B CN108768059B CN201810619443.7A CN201810619443A CN108768059B CN 108768059 B CN108768059 B CN 108768059B CN 201810619443 A CN201810619443 A CN 201810619443A CN 108768059 B CN108768059 B CN 108768059B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- 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
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a motor rotor axial positioning structure, a wiper motor and an assembly method thereof, relates to the field of motor equipment, and solves the problems that an existing armature shaft anti-play structure is limited in clearance elimination and anti-play effect, and consistency is difficult to guarantee; the dynamic unbalance of the rotor is large; the service life of the rolling bearing is short. The technical scheme adopted by the invention is as follows: the motor rotor axial positioning structure comprises an armature shaft, wherein one end of the armature shaft is a worm which is used for being matched with a worm wheel, a clamping ring groove is formed in the end part and the middle of the other end of the armature shaft respectively, a first clamping ring is assembled in the clamping ring groove of the end part, a second clamping ring is assembled in the clamping ring groove of the middle part, a first bearing is arranged on one side, close to the end part, of the first clamping ring, a second bearing is arranged on one side, close to the worm, of the second clamping ring, and a check ring is arranged on an outer ring pad of the second bearing. The invention avoids abnormal sound caused by axial movement of the rotor, has simple structure, improves comfort and prolongs service life; and the wiper motor assembly method has good manufacturability.
Description
Technical Field
The invention relates to the field of motor equipment, in particular to a rotor axial positioning structure of an automobile wiper motor and an assembly method thereof.
Background
In recent years, each car manufacturer has become intelligent as one of the most important selling points when pushing new car models, and intelligent windscreen wipers are also a future development trend. Currently, some high-end vehicle models are already equipped with intelligent wipers. Compared with the intelligent wiper, the traditional wiper has the most remarkable difference that the rotor of the traditional wiper motor rotates in a single direction, and the rotor of the intelligent wiper motor rotates in a forward direction and a reverse direction, so that the forward and reverse axial movement of the rotor needs to be eliminated, and noise and abrasion caused by front and back movement in the rotation process of the rotor are avoided.
The patent with publication number CN 107276263A and publication date 2017, 10 month and 20 days discloses a motor pivot anti-movement mounting structure and a wiper motor, wherein the motor pivot anti-movement mounting structure comprises an armature shaft and a motor end cover, and the armature shaft is rotatably arranged on the motor end cover through a connecting component; the connecting component comprises a first ring buckle, a rolling bearing, an elastic element, a sleeve and a second ring buckle which are sequentially arranged on the armature shaft, wherein the elastic element is a belleville spring and is in a compressed state and pretensions the rolling bearing in the axial direction of the armature shaft; an annular platform is arranged in the motor end cover, the end face of the rolling bearing corresponding to the elastic element is attached to the annular platform, a pressing gasket is further arranged on the motor end cover, and the end face of the rolling bearing corresponding to the first ring buckle is pressed by the pressing gasket.
The motor pivot anti-channeling mounting structure can prevent the armature shaft from channeling and realize forward and reverse rotation of the motor, but the motor pivot anti-channeling mounting structure also has the defects of large unbalanced quantity, complex assembly, high requirement on the dimensional accuracy of parts, longer overall length of the motor, larger weight and the like. . From the overall structure, the armature shaft is connected with the motor end cover through the connecting component, one side of the rolling bearing of the connecting component is fixed through the pressing gasket, the pressing gasket is inserted into an opening on the motor end cover, and the other side of the rolling bearing is provided with the belleville spring, the sleeve piece and the second ring buckle. The disc spring has certain elasticity and plays a role in eliminating dimensional errors; and certain rigidity is kept, so that the armature shaft is prevented from moving. Because factors influencing the elasticity and rigidity of the belleville springs have various aspects such as size, mechanical property of materials, thickness and the like, the belleville springs have limited effects of eliminating size errors and preventing the armature shaft from moving, and the consistency is difficult to ensure under the influence of the size precision of related matched parts. From the dynamic unbalance of the rotor, the armature shaft is sleeved with the connecting component, and the connecting component comprises a first ring buckle, a rolling bearing, an elastic element, a sleeve and a second ring buckle, so that the mass of the rotor is increased, the inertia of the rotor is increased, and the dynamic unbalance of a rotor system is influenced. From the assembly mode, the rotor system is assembled by firstly installing a first ring buckle, then installing a rolling bearing, installing an elastic element, installing a sleeve, installing a second ring buckle and finally installing a compression gasket, so that the defects of more parts and complicated assembly are obvious; in addition, the assembly mode of the pressing gasket is to press in along the radial direction of the armature shaft, and during the assembly process, the balls of the rolling bearing bear radial force, so that the radial clearance of the rolling bearing is increased, the problem of abnormal sound of the bearing occurs, and the problem of insufficient qualification rate exists.
From the specific parts of the motor pivot anti-shifting installation structure, the belleville springs of the motor pivot anti-shifting installation structure are radially compressed, and the compression force is the upper limit of the bearable axial shifting force, so that the axial shifting effect is relatively poor. In addition, the compression amount of the belleville springs is the size of the clearance which can be eliminated, and the belleville springs are limited because the belleville springs need to maintain a certain rigidity and the compression amount is limited. For the rolling bearing, the rolling bearing can avoid axial movement of the rotor in the front and back directions, namely the rolling bearing bears acting forces in the two directions, and the service life of the rolling bearing is relatively low.
Disclosure of Invention
The invention provides an axial positioning structure of a motor rotor, which solves the problems that the existing armature shaft anti-play structure has limited clearance elimination and anti-play effect and is difficult to ensure consistency; the moment of inertia is larger, and the dynamic unbalance of the rotor is larger; there is also a problem in that the service life of the rolling bearing is short.
The technical scheme adopted for solving the technical problems is as follows: the motor rotor axial positioning structure comprises an armature shaft, wherein one end of the armature shaft is provided with a worm which is used for being matched with a worm wheel, the end part of the other end of the armature shaft and the middle part of the armature shaft are respectively provided with a clamping ring groove, a first clamping ring is assembled in the clamping ring groove at the end part of the armature shaft, a second clamping ring is assembled in the clamping ring groove at the middle part of the armature shaft, and a mounting position of a rotor armature and a mounting position of a commutator are arranged between the first clamping ring and the second clamping ring; the side, close to the end part, of the first clamping collar is provided with a first bearing used for being pressed and installed in the stator shell, the outer ring of the first bearing is pressed by the stator shell, and the inner ring of the first bearing is pressed by the first clamping collar; the second clamping collar is arranged on one side, close to the worm, of the second bearing chamber, the second clamping collar is clamped on the inner ring of the second bearing, the retainer ring is arranged on the outer ring of the second bearing in a cushioning mode, the retainer ring and the second clamping collar are distributed on two sides of the second bearing, and the retainer ring is provided with a horn-shaped structure protruding to the outer ring of the second bearing. Specifically, one side of the check ring, which is opposite to the second bearing, is directly attached to the bearing chamber of the worm gear reduction box.
The motor rotor axial positioning structure has the beneficial effects that: one end of the armature shaft is limited by the first clamping collar and the first bearing which are matched with the stator shell, so that the armature shaft is prevented from moving towards the side where the first bearing is located; the middle part of the armature shaft is limited by the second clamping collar, the second bearing and the check ring which are matched with the worm gear reducer, so that the armature shaft is prevented from moving towards one side of the worm gear; the axial fixation of the rotor is reliable, zero clearance is realized, the forward and backward movement of the rotor is eliminated, and the noise and abrasion caused by the forward and backward movement in the rotation process of the rotor are avoided. The first bearing limits backward movement, the second bearing limits forward movement, and the two bearings share forward and backward movement force of the rotor, so that the service life of the bearing is prolonged, and the service life of the motor is prolonged correspondingly. The limiting structure part comprising the second bearing in the middle of the armature shaft has less components, which is beneficial to improving the dynamic unbalance amount of the rotor; in addition, the length of the motor is shortened, the weight of the motor is reduced, the space is saved, and the cost is saved. The retainer ring is radially compressed and deformed, and the structure is in a horn shape, so that the pressing force is small, the withdrawing force is large, the axial play force which can be born is the withdrawing force, the axial play force is far greater than the compression deformation force of the retainer ring, and the anti-play effect is good; the outer ring of the second bearing is tightly pressed by the retainer ring, and the retainer ring has certain elasticity, so that the machining precision requirement of a bearing chamber in the worm gear reduction box is reduced, and the precision requirement of a clamping ring groove position corresponding to the second clamping ring is also reduced.
The invention also provides a wiper motor, which comprises a stator shell, a worm gear reduction box and a worm gear, wherein the stator shell is provided with an end opening, the end opening is connected with the worm gear reduction box, the worm gear reduction box and the stator shell jointly enclose a motor inner cavity, a stator and a rotor are arranged in the motor inner cavity, the rotor adopts any motor rotor axial positioning structure, a worm of an armature shaft is matched with the worm gear, one end of the interior of the stator shell is provided with a bearing chamber, a first bearing at one end of the armature shaft is arranged in the bearing chamber of the stator shell, an outer ring of the first bearing is attached to the stator shell, and a gap is reserved between the inner ring and the stator shell; the inside of worm gear reduction box sets up the bearing room, and second bearing and retaining ring are all installed in the bearing room of worm gear reduction box to the retaining ring compresses tightly the outer lane that contacts to the second bearing, and the second presss from both sides tight rand and compresses tightly to the inner circle of second bearing.
The invention also provides a wiper motor assembly method, which is used for assembling the wiper motor and comprises the following steps:
s1, assembling a retainer ring, a second bearing and a rotor in a worm gear reduction box, and assembling a first bearing in a bearing chamber of a stator shell;
s2, assembling the rotor and the first bearing into a stator shell, and enabling the stator shell to compress an outer ring of the first bearing;
s3, enabling the armature shaft to pass through the first bearing and the second bearing, and enabling the first clamping collar to press the first bearing inner ring; the retainer ring is pressed to be in contact with the outer ring of the second bearing, and the second clamping collar presses the inner ring of the second bearing.
The wiper motor and the wiper motor assembly method have the beneficial effects that: the mode of wiper motor's retaining ring assembly is: the retainer ring is pressed to the second bearing outer ring, the end face of the bearing chamber of the stator housing is pressed to the first bearing outer ring, the retainer ring and the stator housing are clamped from two ends, the gap is completely eliminated, the eliminated gap is larger, and the adaptability is stronger. The front and back movement of the rotor of the wiper motor is completely eliminated, noise and abrasion caused by front and back movement in the rotation process of the rotor are avoided, and the comfort and the service life of the motor are improved. The wiper motor assembly method is simple to operate and good in manufacturability.
Drawings
Fig. 1 is a schematic view of the structure of a wiper motor of the present invention.
Fig. 2 is a cross-sectional view taken along the direction A-A in fig. 1.
Parts, parts and numbers in the figures: the device comprises an armature shaft 1, a worm gear 2, a first clamping collar 3, a second clamping collar 4, a stator housing 5, a first bearing 6, a worm gear reduction box 7, a second bearing 8 and a retainer ring 9.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the motor rotor axial positioning structure of the present invention includes an armature shaft 1, one end of the armature shaft 1 is provided with a worm for cooperation with a worm wheel 2, i.e., the right end of fig. 1 and 2 is provided with a worm for cooperation with the worm wheel 2, so the armature shaft 1 is also a worm shaft. The end part of the other end of the armature shaft 1 and the middle part of the armature shaft 1 are respectively provided with a clamping ring groove, a first clamping ring 3 is assembled in the clamping ring groove at the end part of the armature shaft 1, and a second clamping ring 4 is assembled in the clamping ring groove at the middle part of the armature shaft 1. And a mounting position of the rotor armature and a mounting position of the commutator are arranged between the first clamping ring 3 and the second clamping ring 4, the mounting position of the rotor armature is used for mounting the rotor armature, and the mounting position of the commutator is used for mounting the commutator of the wiper motor.
The side of the first clamping collar 3 near the end, i.e. the left side of fig. 2, is provided with a first bearing 6 for pressing against the inside of the stator housing 5, the outer ring of the first bearing 6 being pressed against by the stator housing 5, the inner ring of the first bearing 6 being pressed against by the first clamping collar 3. Thus, by the first clamping collar 3 and the first bearing 6, the armature shaft 1 is prevented from moving toward the side of the first bearing 6.
The second clamping collar 4 is arranged on one side close to the worm and is used for being assembled with a second bearing 8 of a bearing chamber in the worm gear reduction box 7, the second clamping collar 4 is clamped on an inner ring of the second bearing 8, a check ring 9 is arranged on an outer ring of the second bearing 8 in a cushioning mode, and the check ring 9 and the second clamping collar 4 are distributed on two sides of the second bearing 8, wherein the check ring 9 is an elastic piece. As shown in fig. 2, the right side of the retainer ring 9 is directly contacted with the bearing chamber of the worm reduction gearbox 7, and forms a support, and after the second clamping collar 4 is clamped, the retainer ring 9 is deformed so that the second bearing 8 presses the retainer ring 9. Because the retainer ring 9 is an elastic piece, when the second clamping collar 4 presses the inner ring of the second bearing 8 after assembly, the retainer ring 9 is tightly attached to the outer ring of the second bearing 8 and is in a compressed state, so that the armature shaft 1 is prevented from moving to the worm wheel 2 side. For example, the retainer ring 9 has a horn-shaped structure protruding toward the outer ring of the second bearing 8. The side of the retainer ring 9 opposite to the second bearing 8 is directly attached to the bearing chamber of the worm reduction gearbox 7, so that the number of parts is reduced.
The invention discloses a wiper motor, which is shown in fig. 1 and 2 and comprises a stator shell 5, a worm gear reduction box 7 and a worm gear 2, wherein the stator shell 5 is provided with an end opening, the end opening is connected with the worm gear reduction box 7, the worm gear reduction box 7 and the stator shell 5 jointly enclose a motor inner cavity, and a stator and a rotor are arranged in the motor inner cavity. Wherein, the rotor adopts above-mentioned motor rotor axial location structure. The worm of the armature shaft 1 is engaged with the worm wheel 2. One end of the inside of the stator housing 5 is provided with a bearing chamber, a first bearing 6 at one end of the armature shaft 1 is arranged in the bearing chamber of the stator housing 5, and an outer ring of the first bearing 6 is attached to the stator housing 5, and a gap is reserved between an inner ring and the stator housing 5, namely, the gap is not contacted. The inside of worm gear reduction box 7 sets up the bearing room, and second bearing 8 and retaining ring 9 are all installed in the bearing room of worm gear reduction box 7 to retaining ring 9 compresses tightly the outer lane that contacts to second bearing 8, and second clamp collar 4 compresses tightly to the inner circle of second bearing 8. The armature shaft 1 is limited by two parts of the end part and the middle part, so that the front-back movement of the armature shaft 1 is avoided.
The invention relates to a wiper motor assembly method, which is used for assembling the wiper motor and comprises the following steps:
s1, the retainer ring 9, the second bearing 8 and the rotor are assembled in the worm gear reduction box 7, and the first bearing 6 is assembled in a bearing chamber of the stator housing 5.
S2, assembling the rotor and the first bearing 6 into the stator housing 5, and enabling the stator housing 5 to press the outer ring of the first bearing 6.
S3, the armature shaft 1 passes through the first bearing 6 and the second bearing 8, so that the first clamping collar 3 presses the inner ring of the first bearing 6; the retainer ring 9 is pressed into contact with the outer ring of the second bearing 8 and the second clamping collar 4 presses against the inner ring of the second bearing 8.
The wiper motor and the assembly method thereof eliminate gaps caused by dimension processing errors of parts, and eliminate the movement of the rotor in the forward and backward directions, thereby avoiding noise and abrasion caused by the forward and backward movement in the rotation process of the rotor, improving the comfort and prolonging the service life of the motor.
Claims (4)
1. The utility model provides a motor rotor axial location structure, includes armature shaft (1), and the one end of armature shaft (1) is provided with and is used for with worm wheel (2) complex worm, its characterized in that: the end part of the other end of the armature shaft (1) and the middle part of the armature shaft (1) are respectively provided with a clamping ring groove, a first clamping ring (3) is assembled in the clamping ring groove at the end part of the armature shaft (1), a second clamping ring (4) is assembled in the clamping ring groove at the middle part of the armature shaft (1), and a rotor armature installation position and a commutator installation position are arranged between the first clamping ring (3) and the second clamping ring (4); one side of the first clamping collar (3) close to the end part is provided with a first bearing (6) used for being tightly pressed and installed in the stator shell (5), the outer ring of the first bearing (6) is tightly pressed by the stator shell (5), and the inner ring of the first bearing (6) is tightly pressed by the first clamping collar (3); one side of the second clamping collar (4) close to the worm is provided with a second bearing (8) for being assembled in a bearing chamber in the worm gear reduction box (7), the second clamping collar (4) is clamped on an inner ring of the second bearing (8), a check ring (9) is arranged on an outer ring of the second bearing (8) in a cushioning mode, the check ring (9) and the second clamping collar (4) are distributed on two sides of the second bearing (8), and the check ring (9) is provided with a horn-shaped structure protruding towards the outer ring of the second bearing (8).
2. The motor rotor axial positioning structure according to claim 1, wherein: one side of the check ring (9) opposite to the second bearing (8) is directly attached to a bearing chamber of the worm gear reduction box (7).
3. The utility model provides a windscreen wiper motor, includes stator housing (5), worm gear reduction box (7) and worm wheel (2), and stator housing (5) set up end opening, and end opening part connection worm gear reduction box (7), and motor inner chamber is enclosed jointly to worm gear reduction box (7) and stator housing (5), sets up stator and rotor, its characterized in that in the motor inner chamber:
the motor rotor axial positioning structure of the claim 1 or 2 is adopted by the rotor, the worm of the armature shaft (1) is matched with the worm wheel (2), a bearing chamber is arranged at one end of the inside of the stator housing (5), a first bearing (6) at one end of the armature shaft (1) is arranged in the bearing chamber of the stator housing (5), an outer ring of the first bearing (6) is attached to the stator housing (5), and a gap is reserved between an inner ring and the stator housing (5); the inside of worm gear reduction box (7) sets up the bearing room, and second bearing (8) and retaining ring (9) are all installed in the bearing room of worm gear reduction box (7) to retaining ring (9) compress tightly the outer lane that contacts to second bearing (8), and second clamp collar (4) compress tightly to the inner circle of second bearing (8).
4. A method for assembling a wiper motor according to claim 3, comprising the steps of:
s1, assembling a retainer ring (9), a second bearing (8) and a rotor in a worm gear reduction box (7), and assembling a first bearing (6) in a bearing chamber of a stator shell (5);
s2, assembling the rotor and the first bearing (6) into the stator housing (5), and enabling the stator housing (5) to press the outer ring of the first bearing (6);
s3, the armature shaft (1) passes through the first bearing (6) and the second bearing (8), so that the first clamping collar (3) presses the inner ring of the first bearing (6); the retainer ring (9) is pressed to be contacted with the outer ring of the second bearing (8), and the second clamping collar (4) is pressed against the inner ring of the second bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619443.7A CN108768059B (en) | 2018-06-11 | 2018-06-11 | Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619443.7A CN108768059B (en) | 2018-06-11 | 2018-06-11 | Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108768059A CN108768059A (en) | 2018-11-06 |
| CN108768059B true CN108768059B (en) | 2023-09-08 |
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| CN201810619443.7A Active CN108768059B (en) | 2018-06-11 | 2018-06-11 | Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586502B (en) * | 2018-12-26 | 2020-11-06 | 贵阳万江航空机电有限公司 | Light-weighted back windscreen wiper motor |
| CN110417177A (en) * | 2019-06-26 | 2019-11-05 | 成都华川电装有限责任公司 | Rotor axial direction location structure, rain shaving electrical machine and installation method |
| CN110535286A (en) * | 2019-09-17 | 2019-12-03 | 成都华川电装有限责任公司 | Part fixing structure and rain shaving electrical machine rotor are set on axis |
| CN112564352B (en) * | 2020-12-24 | 2023-02-03 | 贵阳万江航空机电有限公司 | Assembling method of baffle structure for fixing motor rotor part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1750356A1 (en) * | 2005-08-05 | 2007-02-07 | Yamaha Hatsudoki Kabushiki Kaisha | Stator for rotary electric machine |
| CN2924901Y (en) * | 2006-07-28 | 2007-07-18 | 许晓华 | Worm reduction motor |
| CN102371478A (en) * | 2010-08-10 | 2012-03-14 | 杭州山博自动化设备有限公司 | E-shaped collar pressing machine |
| CN105634202A (en) * | 2016-03-17 | 2016-06-01 | 成都华川电装有限责任公司 | Wiper motor |
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2018
- 2018-06-11 CN CN201810619443.7A patent/CN108768059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1750356A1 (en) * | 2005-08-05 | 2007-02-07 | Yamaha Hatsudoki Kabushiki Kaisha | Stator for rotary electric machine |
| CN2924901Y (en) * | 2006-07-28 | 2007-07-18 | 许晓华 | Worm reduction motor |
| CN102371478A (en) * | 2010-08-10 | 2012-03-14 | 杭州山博自动化设备有限公司 | E-shaped collar pressing machine |
| CN105634202A (en) * | 2016-03-17 | 2016-06-01 | 成都华川电装有限责任公司 | Wiper motor |
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| Title |
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| 航空发动机转子柔性装配系统平台构型;刘思佳;李松林;石宏;;沈阳航空航天大学学报(第06期);全文 * |
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| CN108768059A (en) | 2018-11-06 |
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