CN203707902U - Shaft and rotor core cooperation structure - Google Patents
Shaft and rotor core cooperation structure Download PDFInfo
- Publication number
- CN203707902U CN203707902U CN201320780710.1U CN201320780710U CN203707902U CN 203707902 U CN203707902 U CN 203707902U CN 201320780710 U CN201320780710 U CN 201320780710U CN 203707902 U CN203707902 U CN 203707902U
- Authority
- CN
- China
- Prior art keywords
- rotor core
- shaft
- inner diameter
- counter line
- diameter counter
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 230000007704 transition Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A shaft and rotor core cooperation structure design by the utility model comprises a rotor core and a shaft, an interference fit is provided between the rotor core and the shaft, and the cross section of the shaft is circular. The shaft and rotor core cooperation structure is characterized in that an inner diameter counter line of the rotor core is also circular, 4-8 gaps are uniformly distributed in the circumference of the inner diameter counter line, the gaps are arcs which are concentric with the inner diameter counter line, chamfering are performed in the inner diameter counter line to perform transition, the radius of each gap is 100.6%-101.2% of the radius of the inner diameter counter line, and the chord length of each gap is 40%-60% of the radius of the inner diameter counter line. According to the shaft and rotor core cooperation structure design by the utility model, the gaps are disposed in the inner diameter counter line of a rotor, so a contact face between the rotor core and the shaft is reduced when the interference fit is performed, and a press-in force while assembling is thus reduced; through accurate calculation, a torque force output by the motor when the motor works is guaranteed at the same time; and the shaft and rotor core cooperation structure has the advantages of reasonable design, simple assembly and small effect energy while installation.
Description
Technical field
The utility model relates to field of motor manufacturing, particularly a kind of axle and rotor core fit structure.
Background technology
In prior art, motor shaft and rotor core are fixed by interference fit, when assembling, directly rotor core are pressed on axle by press, due to interference fit, need larger pressing-in force.This interference fit also will be considered rotor output twisting resistance simultaneously, need to ensure that, in the time that motor moves, motor shaft and rotor core there will not be relative displacement.
Utility model content
The purpose of this utility model is the deficiency in order to solve above-mentioned technology and provide a kind of and ensure that rotor core and axle secure fit export twisting resistance, the axle that while assembling, pressing-in force is less simultaneously and rotor core fit structure.
In order to achieve the above object, the axle that the utility model is designed and rotor core fit structure, comprise rotor core and the axle of interference fit with it, the cross section of described axle is circular, it is characterized in that the internal diameter profile line of described rotor core is also for circular, be provided with 4-8 gap but be evenly equipped with on its circumference, the described gap that makes is the circular arc concentric with internal diameter profile line, and in the transition of internal diameter profile line chamfering, and the radius of described gap is the 100.6%-101.2% of internal diameter profile line radius, the chord length of described gap is the 40%-60% of internal diameter profile line radius.
The axle that the utility model is designed and rotor core fit structure, by gap being set on rotor internal diameter profile line, while reducing interference fit, the contact-making surface of rotor core and axle, thereby the pressing-in force while having reduced assembling, calculate through accurate simultaneously, while having ensured machine operation, the torsional forces of motor output, has reasonable in design, assembling is simple, the little feature of effect energy when installation.
Brief description of the drawings
Fig. 1 the utility model embodiment 1 structural representation.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As Fig. 1, axle and rotor core fit structure that the present embodiment is described, comprise rotor core and the axle of interference fit with it, the cross section of described axle is circular, the internal diameter profile line 1 of described rotor core is also circular, be provided with 4-8 gap 2 but be evenly equipped with on its circumference, the described gap 2 that makes is circular arcs concentric with internal diameter profile line 1, and in the 1 chamfering transition of internal diameter profile line, and the radius of described gap 2 is 100.6%-101.2% of internal diameter profile line 1 radius, the chord length L of described gap 2 is 40%-60% of internal diameter profile line 1 radius.
Claims (1)
1. an axle and rotor core fit structure, comprise rotor core and the axle of interference fit with it, the cross section of described axle is circular, it is characterized in that the internal diameter profile line of described rotor core is also for circular, be provided with 4-8 gap but be evenly equipped with on its circumference, the described gap that makes is the circular arc concentric with internal diameter profile line, and in the transition of internal diameter profile line chamfering, and the radius of described gap is the 100.6%-101.2% of internal diameter profile line radius, the chord length of described gap is the 40%-60% of internal diameter profile line radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780710.1U CN203707902U (en) | 2013-11-30 | 2013-11-30 | Shaft and rotor core cooperation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780710.1U CN203707902U (en) | 2013-11-30 | 2013-11-30 | Shaft and rotor core cooperation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707902U true CN203707902U (en) | 2014-07-09 |
Family
ID=51058283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320780710.1U Expired - Lifetime CN203707902U (en) | 2013-11-30 | 2013-11-30 | Shaft and rotor core cooperation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715793A (en) * | 2013-11-30 | 2014-04-09 | 浙江京马电机有限公司 | Shaft and rotor iron core fitting structure |
-
2013
- 2013-11-30 CN CN201320780710.1U patent/CN203707902U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715793A (en) * | 2013-11-30 | 2014-04-09 | 浙江京马电机有限公司 | Shaft and rotor iron core fitting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314500 Tongxiang City, Jiaxing Province, the town of the city of Beijing, Beijing, Beijing Road Patentee after: JEAMO MOTOR CO.,LTD. Address before: 314500 Tongxiang City, Jiaxing Province, the town of the city of Beijing, Beijing, Beijing Road Patentee before: ZHEJIANG JEAMO MOTOR Co.,Ltd. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Chunfu Inventor after: Gao Shanfeng Inventor before: Zhu Chunfu Inventor before: Li Yongbing Inventor before: Gao Shanfeng Inventor before: Zheng Xuhong Inventor before: Wang Fangbing Inventor before: Sheng Jie |
|
| CB03 | Change of inventor or designer information | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Jinghui Electromechanical Co.,Ltd. Assignor: JEAMO MOTOR CO.,LTD. Contract record no.: X2023330000449 Denomination of utility model: Matching structure between shaft and rotor core Granted publication date: 20140709 License type: Common License Record date: 20230727 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |