CN203166650U - Motor rotor core fixing structure and motor - Google Patents
Motor rotor core fixing structure and motor Download PDFInfo
- Publication number
- CN203166650U CN203166650U CN 201320125975 CN201320125975U CN203166650U CN 203166650 U CN203166650 U CN 203166650U CN 201320125975 CN201320125975 CN 201320125975 CN 201320125975 U CN201320125975 U CN 201320125975U CN 203166650 U CN203166650 U CN 203166650U
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- rotating shaft
- keyway
- iron core
- key
- keyways
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a motor rotor core fixing structure, which comprises a rotating shaft and an iron core. The rotating shaft is provided with a first keyway and a key, wherein the key is in close fit with the first keyway, is mounted in the first keyway and protrudes out of the periphery of the rotating shaft, the iron core is in transitional or interference fit with the rotating shaft, and equipped with a second keyway in corresponding position of the key, the second keyway is in close fit with a peripheral part of the key which protrudes out of the rotating shaft, and the first keyway, the key and the second keyway are arranged along the axial direction of the rotating shaft. The utility model also provides a corresponding motor. According to the utility model, the iron core cooperates with the key on the rotating shaft to realize torque transmission in the circumferential direction as well as reliable fixation between the rotating shaft and the iron core.
Description
Technical field
The utility model relates to the electric machine structure field, more particularly, relates to a kind of motor rotor core fixed structure and motor.
Background technology
Rotor is the rotating parts in the motor, usually is made up of rotating shaft and iron core two parts of being fixed in the rotating shaft, and it is the conversion equipment of realizing electric energy and mechanical energy and mechanical energy and electric energy.
The iron core employing of rotor is suppressed in the general employing of rotor core at present or hot cover process is installed on the rotor shaft, carries out axial restraint by the interference fit of iron core and rotating shaft.The transmission of circumferencial direction torque also realizes with the interference connection of rotating shaft by iron core.
Under the high-speed response of motor, frequent start-stop rotating working condition, the iron core of rotor and between centers only carry out the axial restraint poor reliability by interference fit, easily produce the iron core displacement and lose efficacy, and then cause motor to lose efficacy.
The utility model content
The technical problems to be solved in the utility model is, the problem at the iron core of above-mentioned rotor is shifted easily and lost efficacy provides a kind of motor rotor core fixed structure and motor.
The technical scheme that the utility model solves the problems of the technologies described above is, a kind of motor rotor core fixed structure is provided, and comprises rotating shaft and iron core; Described rotating shaft is provided with the key that first keyway and tight fit are installed in described first keyway and protrude from the rotating shaft periphery; Position corresponding to key on described iron core and rotating shaft transition or interference fit and this iron core is provided with second keyway; The outer peripheral portion tight fit that protrudes from rotating shaft of described second keyway and key; Described first keyway, key, second keyway are along the axial setting of rotating shaft.
In motor rotor core fixed structure described in the utility model, first keyway, first end vertically is provided with step in the described rotating shaft, second end is provided with male thread, described fixed structure comprises also and the nut of described male thread coupling that described nut screws male thread after iron core sleeve is received rotating shaft.
In motor rotor core fixed structure described in the utility model, described nut is for having screw thread glue between two round nuts and this pair round nut and male thread.
In motor rotor core fixed structure described in the utility model, described rotating shaft is provided with two first keyways, and these two first keyways interval 180 degree on the rotating shaft periphery, and a key is installed in each first keyway; Described iron core is provided with two second keyways and the 180 degree distributions at interval on week in iron core of this second keyway.
In motor rotor core fixed structure described in the utility model, the length of the length of described first keyway, key, second keyway and iron core and rotating shaft contact portion coupling.
The utility model also provides a kind of motor, comprises that rotor and this rotor comprise rotating shaft and iron core; Described rotating shaft is provided with the key that first keyway and tight fit are installed in described first keyway and protrude from the rotating shaft periphery; Position corresponding to key on described iron core and rotating shaft transition or interference fit and this iron core is provided with second keyway; The outer peripheral portion tight fit that protrudes from rotating shaft of described second keyway and key; Described first keyway, key, second keyway are along the axial setting of rotating shaft.
In motor described in the utility model, first keyway, first end vertically is provided with step in the described rotating shaft, second end is provided with male thread, described fixed structure comprises also and the nut of described male thread coupling that described nut screws male thread after iron core sleeve is received rotating shaft.
In motor described in the utility model, described nut is for having screw thread glue between two round nuts and this pair round nut and male thread.
In motor described in the utility model, described rotating shaft is provided with two first keyways, and these two first keyways interval 180 degree on the rotating shaft periphery, and a key is installed in each first keyway; Described iron core is provided with two second keyways and the 180 degree distributions at interval on week in iron core of this two second keyways.
In motor described in the utility model, the length of the length of described first keyway, key, second keyway and iron core and rotating shaft contact portion coupling.
Motor rotor core fixed structure of the present utility model and motor have following beneficial effect: cooperate with key in the rotating shaft by iron core, can realize the circumferencial direction transmission of torque, realized the secure fixation of rotating shaft and iron core.The utility model also adds the two anti-male threads that send structure to screw rotating shaft of screw thread glue by two round nuts, and realization screw-threaded coupling is fixed, thereby has guaranteed the axial secure fixation of iron core and rotating shaft.
Description of drawings
Fig. 1 is the schematic diagram of the utility model motor rotor core fixed structure embodiment.
Fig. 2 is the generalized section of Fig. 1 shaft and iron core standing part.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, 2, be the schematic diagram of the utility model motor rotor core fixed structure embodiment.Motor rotor core fixed structure in the present embodiment comprises rotating shaft 10 and iron core 20, and its shaft 10 is provided with first keyway 11 and tight fit and is installed to key 12 in first keyway 11, and this key 12 protrudes from rotating shaft 10 peripheries being installed to tops, first keyway, 11 back; Position corresponding to key 12 on iron core 20 and rotating shaft 10 transition or interference fit and this iron core 20 is provided with second keyway 21, the outer peripheral portion tight fit that protrudes from rotating shaft 10 of this second keyway 21 and key 12.Above-mentioned first keyway 11, key 12, second keyway 21 are set to rotating shaft 10 along the axial setting of rotating shaft 10 thereby be convenient to iron core 20 covers.
Above-mentioned motor rotor core fixed structure is installed to first keyway 11 with key 12 tight fits earlier in when assembling, then with second keyway, 21 alignment keys 12 on the iron core 20 and by hot jacket or suppress into mode be installed to rotating shaft 10.By the cooperation of first keyway 11, key 12 and second keyway 21, can transmit the circumferencial direction torque to iron core 20, prevent that iron core 20 is in the displacement of circumferencial direction.
In order to prevent that iron core 20 is in axial displacement, first keyway 11, first end vertically is provided with step 13 in the rotating shaft 10, second end is provided with male thread 14, above-mentioned motor rotor core fixed structure also comprises the nut with male thread 14 couplings, and this nut screws male thread 14 after iron core 20 covers are received rotating shaft 10.Like this, the two ends that cover is received the iron core 20 of rotating shaft 10 are resisted against respectively on step 13 and the nut, can effectively avoid axially displaced.
Especially, above-mentioned nut can be adopted as two round nuts 30.14 of this pair round nut 30 and male threads have screw thread glue, become flexible to avoid two round nuts 30.
In addition, for further guaranteeing the reliable delivery of circumferencial direction torque, above-mentioned rotating shaft 10 is provided with two first keyways 11, and these two first keyways 11 interval 180 degree on the rotating shaft periphery, in each first keyway 11 key 12 is installed.Correspondingly, also be provided with two second keyways 21 and these two second keyway 21,180 degree distributions at interval on week in iron core 20 on the iron core 20.
And, the length of above-mentioned first keyway, key, second keyway can and the length coupling of iron core 20 and rotating shaft 10 contact portions, namely equal or be slightly smaller than the length of iron core 20 and rotating shaft 10 contact portions.
The utility model also provides a kind of motor, comprises that rotor and this rotor comprise rotating shaft and iron core; Wherein: rotating shaft is provided with the key that first keyway and tight fit are installed in this first keyway and protrude from the rotating shaft periphery; Position corresponding to key on iron core and rotating shaft transition or interference fit and this iron core is provided with second keyway; The outer peripheral portion tight fit that protrudes from rotating shaft of second keyway and key; Above-mentioned first keyway, key, second keyway are along the axial setting of rotating shaft.
In addition, in order to guarantee that iron core is in the reliability of rotating shaft axial restraint, can first keyway, first end vertically arrange step in rotating shaft, second end arranges male thread, and the nut of increase and male thread coupling, this nut screws male thread after iron core sleeve is received rotating shaft.Especially, above-mentioned nut can adopt between two round nuts and this pair round nut and male thread locking by screw thread glue.
For guaranteeing the circumferencial direction transmission of torque, can two first keyways be set in rotating shaft, and these two first keyways interval 180 degree on the rotating shaft periphery, a key is installed in each first keyway.Correspondingly, at iron core two second keyways and the 180 degree distributions at interval on week in iron core of this two second keyways are set.
For further guaranteeing the circumferencial direction transmission of torque, the length of above-mentioned first keyway, key, second keyway equals the length of iron core and rotating shaft contact portion.
The utility model is under motor high-speed response, frequent start-stop rotating working condition, and because axial, circumferencial direction all closely are connected and fixed, reliable in structure can not occur any loosening.Simultaneously because this axis of no-feathering all closely is connected and fixed to, circumferencial direction, be suitable for the various operating modes of motor.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (10)
1. a motor rotor core fixed structure comprises rotating shaft and iron core; It is characterized in that: described rotating shaft is provided with the key that first keyway and tight fit are installed in described first keyway and protrude from the rotating shaft periphery; Position corresponding to key on described iron core and rotating shaft transition or interference fit and this iron core is provided with second keyway; The outer peripheral portion tight fit that protrudes from rotating shaft of described second keyway and key; Described first keyway, key, second keyway are along the axial setting of rotating shaft.
2. motor rotor core fixed structure according to claim 1, it is characterized in that: first keyway, first end vertically is provided with step in the described rotating shaft, second end is provided with male thread, described fixed structure comprises also and the nut of described male thread coupling that described nut screws male thread after iron core sleeve is received rotating shaft.
3. motor rotor core fixed structure according to claim 2 is characterized in that: described nut is for having screw thread glue between two round nuts and this pair round nut and male thread.
4. motor rotor core fixed structure according to claim 1 and 2, it is characterized in that: described rotating shaft is provided with two first keyways, and these two first keyways 180 degree at interval on the rotating shaft periphery, and a key is installed in each first keyway; Described iron core is provided with two second keyways and the 180 degree distributions at interval on week in iron core of this two second keyways.
5. motor rotor core fixed structure according to claim 1 and 2 is characterized in that: the length coupling of the length of described first keyway, key, second keyway and iron core and rotating shaft contact portion.
6. a motor comprises that rotor and this rotor comprise rotating shaft and iron core; It is characterized in that: described rotating shaft is provided with the key that first keyway and tight fit are installed in described first keyway and protrude from the rotating shaft periphery; Position corresponding to key on described iron core and rotating shaft transition or interference fit and this iron core is provided with second keyway; The outer peripheral portion tight fit that protrudes from rotating shaft of described second keyway and key; Described first keyway, key, second keyway are along the axial setting of rotating shaft.
7. motor according to claim 6, it is characterized in that: first keyway, first end vertically is provided with step in the described rotating shaft, second end is provided with male thread, described fixed structure comprises also and the nut of described male thread coupling that described nut screws male thread after iron core sleeve is received rotating shaft.
8. motor according to claim 7 is characterized in that: described nut is for having screw thread glue between two round nuts and this pair round nut and male thread.
9. according to claim 6 or 7 described motors, it is characterized in that: described rotating shaft is provided with two first keyways, and these two first keyways interval 180 degree on the rotating shaft periphery, and a key is installed in each first keyway; Described iron core is provided with two second keyways and the 180 degree distributions at interval on week in iron core of this two second keyways.
10. according to claim 6 or 7 described motors, it is characterized in that: the length coupling of the length of described first keyway, key, second keyway and iron core and rotating shaft contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125975 CN203166650U (en) | 2013-03-19 | 2013-03-19 | Motor rotor core fixing structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125975 CN203166650U (en) | 2013-03-19 | 2013-03-19 | Motor rotor core fixing structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166650U true CN203166650U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125975 Expired - Fee Related CN203166650U (en) | 2013-03-19 | 2013-03-19 | Motor rotor core fixing structure and motor |
Country Status (1)
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| CN (1) | CN203166650U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321956A (en) * | 2018-03-14 | 2018-07-24 | 重庆永发工业有限公司 | A kind of connection structure of rotor and axis |
| CN108880041A (en) * | 2018-08-26 | 2018-11-23 | 深圳市领航致远科技有限公司 | A kind of hub motor and electrodynamic balance vehicle of electrodynamic balance vehicle |
| CN108916363A (en) * | 2018-08-08 | 2018-11-30 | 宁国市双阳精密制造有限公司 | A kind of wear-resistant material production equipment rotor axis of electric |
| CN108988564A (en) * | 2018-08-08 | 2018-12-11 | 宁国市双阳精密制造有限公司 | A kind of wear-resistant material production equipment motor |
| CN108988587A (en) * | 2018-08-08 | 2018-12-11 | 宁国市双阳精密制造有限公司 | A kind of output axle drive disk assembly method for dismounting of wear-resistant material production line motor |
| CN111864946A (en) * | 2020-06-24 | 2020-10-30 | 诺丁汉(余姚)智能电气化研究院有限公司 | Mounting structure of motor rotor and motor shaft |
-
2013
- 2013-03-19 CN CN 201320125975 patent/CN203166650U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321956A (en) * | 2018-03-14 | 2018-07-24 | 重庆永发工业有限公司 | A kind of connection structure of rotor and axis |
| CN108916363A (en) * | 2018-08-08 | 2018-11-30 | 宁国市双阳精密制造有限公司 | A kind of wear-resistant material production equipment rotor axis of electric |
| CN108988564A (en) * | 2018-08-08 | 2018-12-11 | 宁国市双阳精密制造有限公司 | A kind of wear-resistant material production equipment motor |
| CN108988587A (en) * | 2018-08-08 | 2018-12-11 | 宁国市双阳精密制造有限公司 | A kind of output axle drive disk assembly method for dismounting of wear-resistant material production line motor |
| CN108988587B (en) * | 2018-08-08 | 2021-01-29 | 江西吉思知识产权运营有限公司 | Method for disassembling transmission part of output shaft of motor in wear-resistant material production line |
| CN108880041A (en) * | 2018-08-26 | 2018-11-23 | 深圳市领航致远科技有限公司 | A kind of hub motor and electrodynamic balance vehicle of electrodynamic balance vehicle |
| CN111864946A (en) * | 2020-06-24 | 2020-10-30 | 诺丁汉(余姚)智能电气化研究院有限公司 | Mounting structure of motor rotor and motor shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160219 Address after: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Patentee after: Suzhou Huichuan Technology Co.,Ltd. Patentee after: Shenzhen Inovance Technology Co., Ltd. Address before: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Patentee before: Suzhou Huichuan Technology Co.,Ltd. Patentee before: Suzhou Monarch Control Technology Co., Ltd. Patentee before: Shenzhen Inovance Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20200319 |