CN111864946B - Mounting structure of motor rotor and motor shaft - Google Patents
Mounting structure of motor rotor and motor shaft Download PDFInfo
- Publication number
- CN111864946B CN111864946B CN202010587289.7A CN202010587289A CN111864946B CN 111864946 B CN111864946 B CN 111864946B CN 202010587289 A CN202010587289 A CN 202010587289A CN 111864946 B CN111864946 B CN 111864946B
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- China
- Prior art keywords
- key
- motor shaft
- shaft
- motor
- motor rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Abstract
The invention discloses an installation structure of a motor rotor and a motor shaft, which comprises the motor rotor and the motor shaft, wherein the motor shaft is arranged in a shaft hole of the motor rotor in a penetrating way, the outer peripheral wall of the motor shaft is attached to the hole wall of the shaft hole, at least one limit key is arranged between the motor shaft and the motor rotor, a first key groove for embedding the limit key part is arranged on the outer wall of the motor shaft, a second key groove for embedding the limit key part is arranged on the hole wall of the shaft hole, the limit key is tightly propped against the first key groove and the second key groove, a first inclined surface is arranged on the inner bottom of the first key groove, and a second inclined surface matched with the first inclined surface is arranged on the end surface of the limit key, which faces to the motor shaft side; according to the invention, the first inclined plane is arranged at the inner bottom of the first key groove, and the second inclined plane is arranged on the limiting key, so that the motor shaft and the motor rotor can be matched and tightened more and more in the process that the limiting key is gradually inserted into the first key groove and the second key groove, and the tight fit effect of the motor shaft and the motor rotor can be improved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a mounting structure of a motor rotor and a motor shaft.
Background
At present, when motor shaft and electric motor rotor assembled, the motor shaft realized close-fitting and circumference spacing through spacing key with electric motor rotor, but spacing key on the market is mostly rectangle strip structure at present, so, after motor shaft and electric motor rotor passed through spacing key cooperation, there was the poor shortcoming of motor shaft and electric motor rotor close-fitting effect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the mounting structure of the motor rotor and the motor shaft, the motor shaft and the motor rotor can be matched and tightened more and more in the process that the limit key is gradually inserted into the first key groove and the second key groove after the first inclined surface is arranged at the inner bottom of the first key groove and the second inclined surface is arranged on the limit key, so that the tight fit effect of the motor shaft and the motor rotor can be improved.
The invention discloses an installation structure of a motor rotor and a motor shaft, which comprises the motor rotor and the motor shaft, wherein the motor shaft is arranged in a shaft hole of the motor rotor in a penetrating manner, the outer peripheral wall of the motor shaft is attached to the hole wall of the shaft hole, at least one limit key is arranged between the motor shaft and the motor rotor, a first key groove for embedding the limit key is arranged on the outer wall of the motor shaft, a second key groove for embedding the limit key is arranged on the hole wall of the shaft hole, the limit key is tightly abutted against the first key groove and the second key groove, a first inclined surface is arranged on the inner bottom of the first key groove, and a second inclined surface matched with the first inclined surface is arranged on the end surface of the limit key, which faces to the motor shaft side.
The invention relates to an installation structure of a motor rotor and a motor shaft, wherein two limit keys are arranged between the motor shaft and the motor rotor, and the two limit keys are arranged in central symmetry relative to the axis of the motor shaft; after the two limiting keys are adopted, the motor rotor and the motor shaft can be better tightly matched together.
The mounting structure of the motor rotor and the motor shaft comprises a limiting key, a plurality of screw holes, a plurality of screw studs and a plurality of positioning pins, wherein the screw holes are arranged at the tail end of the limiting key; through the setting of the screw hole of toper form and the screw of toper form, when utilizing the spanner to rotate the double-screw bolt and making the double-screw bolt move toward the bottom of screw hole, the spacing key that is located notch department can be strutted gradually, so, the spacing key that is located notch department can expand tightly with motor shaft and electric motor rotor gradually, so, can avoid the spacing key phenomenon that breaks away from motor shaft and electric motor rotor to appear.
According to the invention, the first inclined plane is arranged at the inner bottom of the first key groove, and the second inclined plane is arranged on the limiting key, so that the motor shaft and the motor rotor can be matched and tightened more and more in the process that the limiting key is gradually inserted into the first key groove and the second key groove, and the tight fit effect of the motor shaft and the motor rotor can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a three-dimensional structure of a motor shaft and a motor rotor after being fastened by a limit key;
FIG. 2 is a schematic view of a three-dimensional structure of a motor shaft and a motor rotor after being fastened by a limit key;
FIG. 3 is a schematic cross-sectional view of a motor shaft and a motor rotor fastened by a limit key;
FIG. 4 is an enlarged view of the mechanism at A in FIG. 3;
fig. 5 is a schematic perspective view of a limiting key.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings for the sake of simplicity.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention relates to an installation structure of a motor rotor and a motor shaft, which comprises a motor rotor 1 and a motor shaft 2, wherein the motor shaft 2 is arranged in a shaft hole 11 of the motor rotor 1 in a penetrating manner, the peripheral wall of the motor shaft 2 is attached to the wall of the shaft hole 11, at least one limit key 3 is arranged between the motor shaft 2 and the motor rotor 1, a first key groove 21 for partially embedding the limit key 3 is arranged on the outer wall of the motor shaft 2, a second key groove 12 for partially embedding the limit key 3 is arranged on the wall of the shaft hole 11, the limit key 3 is tightly propped against the first key groove 21 and the second key groove 12, a first inclined surface 22 is arranged at the inner bottom of the first key groove 21, and a second inclined surface 31 matched with the first inclined surface 22 is arranged on the end surface of the limit key 3 facing to one side of the motor shaft 2; according to the invention, the first inclined plane is arranged at the inner bottom of the first key groove, and the second inclined plane is arranged on the limiting key, so that the motor shaft and the motor rotor can be matched and tightened more and more in the process that the limiting key is gradually inserted into the first key groove and the second key groove, and the tight fit effect of the motor shaft and the motor rotor can be improved.
Two limit keys 3 are arranged between the motor shaft 2 and the motor rotor 1, and the two limit keys 3 are arranged in central symmetry about the axis of the motor shaft 2; after the two limiting keys are adopted, the motor rotor and the motor shaft can be better tightly matched together.
The tail end of the limiting key 3 is provided with a conical threaded hole 32, the side wall of the limiting key 3 at the position of the threaded hole 32 is provided with a plurality of notches 33 which are uniformly distributed in the circumferential direction, a conical stud 4 is connected with the threaded hole 32 in a threaded manner, the bottom of each notch 33 extends to the bottom of the threaded hole 32, and the outer end face of each stud 4 is provided with an inner hexagonal hole 42; through the setting of the screw hole of toper form and the screw of toper form, when utilizing the spanner to rotate the double-screw bolt and making the double-screw bolt move toward the bottom of screw hole, the spacing key that is located notch department can be strutted gradually, so, the spacing key that is located notch department can expand tightly with motor shaft and electric motor rotor gradually, so, can avoid the spacing key phenomenon that breaks away from motor shaft and electric motor rotor to appear.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (1)
1. The utility model provides an installing structure of electric motor rotor and motor shaft, includes electric motor rotor (1) and motor shaft (2), wear to establish in shaft hole (11) of electric motor rotor (1) motor shaft (2), the pore wall laminating in periphery wall and shaft hole (11) of motor shaft (2), its characterized in that: at least one limiting key (3) is installed between the motor shaft (2) and the motor rotor (1), a first key groove (21) for partially embedding the limiting key (3) is formed in the outer wall of the motor shaft (2), a second key groove (12) for partially embedding the limiting key (3) is formed in the hole wall of the shaft hole (11), the limiting key (3) is tightly abutted against the first key groove (21) and the second key groove (12), a first inclined surface (22) is formed in the inner bottom of the first key groove (21), and a second inclined surface (31) matched with the first inclined surface (22) is formed in the end surface, facing one side of the motor shaft (2), of the limiting key (3); two limiting keys (3) are arranged between the motor shaft (2) and the motor rotor (1), and the two limiting keys (3) are arranged in central symmetry around the axis of the motor shaft (2); the tail end of spacing key (3) is provided with screw hole (32) of toper form, is provided with a plurality of notches (33) that are circumference evenly distributed on the lateral wall of spacing key (3) that are located screw hole (32) position department, threaded connection has double-screw bolt (4) of toper form in screw hole (32), the bottom of notch (33) extends to the bottom department of screw hole (32), be provided with interior hexagonal hole (42) on the outer terminal surface of double-screw bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587289.7A CN111864946B (en) | 2020-06-24 | 2020-06-24 | Mounting structure of motor rotor and motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587289.7A CN111864946B (en) | 2020-06-24 | 2020-06-24 | Mounting structure of motor rotor and motor shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111864946A CN111864946A (en) | 2020-10-30 |
| CN111864946B true CN111864946B (en) | 2023-04-07 |
Family
ID=72988516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010587289.7A Active CN111864946B (en) | 2020-06-24 | 2020-06-24 | Mounting structure of motor rotor and motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111864946B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204851767U (en) * | 2015-07-21 | 2015-12-09 | 山西巨龙风机有限公司 | Water conservancy diversion formula centrifugal fan rotor |
| CN107994715A (en) * | 2017-12-20 | 2018-05-04 | 卧龙电气集团股份有限公司 | It is a kind of to prevent rotor from rotating the locking device with play |
Family Cites Families (9)
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|---|---|---|---|---|
| JP5382012B2 (en) * | 2011-02-03 | 2014-01-08 | トヨタ自動車株式会社 | Rotor for rotating electrical machine and method for manufacturing the same |
| CN102350617B (en) * | 2011-09-08 | 2013-07-10 | 中国航空工业第六一八研究所 | Method for processing high-accuracy easily-deformable U-shaped cantilever structural member |
| CN203166650U (en) * | 2013-03-19 | 2013-08-28 | 苏州汇川技术有限公司 | Motor rotor core fixing structure and motor |
| CN203879793U (en) * | 2014-06-17 | 2014-10-15 | 泽尼特泵业（苏州）有限公司 | Transmission connection sleeve assembly and connecting structure of impeller and motor shaft |
| CN204478973U (en) * | 2015-03-25 | 2015-07-15 | 十堰瑞程传动轴有限公司 | The automatic swelling cubing of a kind of spline |
| CN205895868U (en) * | 2016-07-25 | 2017-01-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Fan and motor shaft mounting structure |
| CN106640895A (en) * | 2016-12-31 | 2017-05-10 | 重庆大学 | Double-nut screw type fixed connector based on push expansion elastic deformation |
| CN206834869U (en) * | 2017-06-20 | 2018-01-02 | 天津创远亿德科技发展有限公司 | Magneto rotating shaft |
| CN207559821U (en) * | 2017-11-28 | 2018-06-29 | 湖北西浦电机科技有限责任公司 | Rotor structure, latent oil direct driving motor and oil extraction system |
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2020
- 2020-06-24 CN CN202010587289.7A patent/CN111864946B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204851767U (en) * | 2015-07-21 | 2015-12-09 | 山西巨龙风机有限公司 | Water conservancy diversion formula centrifugal fan rotor |
| CN107994715A (en) * | 2017-12-20 | 2018-05-04 | 卧龙电气集团股份有限公司 | It is a kind of to prevent rotor from rotating the locking device with play |
Non-Patent Citations (1)
| Title |
|---|
| 基于电磁自愈力的转子自动平衡方法与实验研究;黄立权等;《振动与冲击》(第01期);第208-212页 * |
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| Publication number | Publication date |
|---|---|
| CN111864946A (en) | 2020-10-30 |
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