CN208128063U - A kind of motor driving structure of new-energy automobile - Google Patents
A kind of motor driving structure of new-energy automobile Download PDFInfo
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- CN208128063U CN208128063U CN201820059378.2U CN201820059378U CN208128063U CN 208128063 U CN208128063 U CN 208128063U CN 201820059378 U CN201820059378 U CN 201820059378U CN 208128063 U CN208128063 U CN 208128063U
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- machine shaft
- drive flange
- positioning sleeve
- confined planes
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Abstract
The utility model discloses a kind of motor driving structure of new-energy automobile, including machine shaft and drive flange, the output end of machine shaft is equipped with external splines, and drive flange is equipped with internal spline, and machine shaft realizes spline connection by the cooperation of the internal spline of external splines and drive flange；The confined planes for being located at external splines root with one on the outer peripheral surface of machine shaft, the radial dimension of the confined planes continuously successively decrease along the axial direction of asymptotic external splines；It further include a positioning sleeve, positioning sleeve is set on machine shaft to lean with machine shaft clearance fit, one end of positioning sleeve one end and drive flange towards positioning sleeve, and the positioning sleeve other end is resisted against on the confined planes of machine shaft, is limited by confined planes.The utility model is of simple structure and low cost, the axial length of drive flange is reduced, material is saved, reduces difficulty of processing, improves assembly efficiency, and it effectively avoids drive flange with respect to the axial float of machine shaft, reduces the abrasion probability of spline, improve the service life of spline.
Description
Technical field
The utility model belongs to new-energy automobile field, relates generally to a kind of driving motor of new-energy automobile, especially relates to
And a kind of motor driving structure of new-energy automobile.
Background technique
It is well known that spline fitted has, uniform force, concentrated stress are small, transmitting torque is big, long service life, centering essence
Many advantages, such as high is spent, so new-energy automobile field mostly uses spline to connect greatly at present.
But since the spline fitted between the machine shaft and drive flange in current new-energy automobile is matched using pine
It closes, the external splines of machine shaft（Spline tooth）End have one section of transition circle that can not be matched with drive flange internal spline
Arc, therefore will have axial float phenomenon between spline.In automobile frequent starting, the spline of loose fit will be collided mutually
Friction, accelerated wear test, motor abnormal sound result even in spline tooth and grind off when serious, spline fracture, eventually leading to motor can not be just
Often transmitting torque, and then automobilism can not be driven.
In consideration of it, proposing that a kind of motor driving structure of new-energy automobile is the project to be studied of the utility model.
Summary of the invention
The utility model provides a kind of motor driving structure of new-energy automobile, and its purpose is to solve in the prior art
The problem of machine shaft and drive flange lead to axial float using the loose fit of spline.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of motor drive knot of new-energy automobile
Structure, including machine shaft and drive flange, the output end of the machine shaft are equipped with external splines, and the drive flange is equipped with interior
Spline, the machine shaft realize spline connection by the cooperation of the internal spline of external splines and drive flange；
The confined planes for being located at the external splines root with one on the outer peripheral surface of the machine shaft, the radial direction of the confined planes
Size is continuously successively decreased along the axial direction of asymptotic external splines；
It further include a positioning sleeve, the positioning sleeve is set on machine shaft and machine shaft clearance fit, the positioning
Set one end and one end of drive flange towards positioning sleeve lean, and the positioning sleeve other end is resisted against the limiting stand of machine shaft
On rank, limited by the annular slope.
Related content in above-mentioned technical proposal is explained as follows：
It 1, further include flange in above scheme, the flange is bolted on drive flange backwards to fixed
On one end face of position set.
2, in above scheme, lock washer is additionally provided between the bolt and flange.
3, in above scheme, the output end face of the machine shaft is provided inwardly with screw hole, and the screw bolt passes are locking
Washer and flange, are screwed into the screw hole of machine shaft, to realize the axial locking of drive flange and machine shaft.
4, in above scheme, angular range between the annular slope and machine shaft of the limited step is 15 °~
45°。
5, in above scheme, the angle between the annular slope and machine shaft of the limited step is 30 °.
Working principle：The utility model between drive flange and machine shaft by adding a positioning sleeve, the positioning sleeve
One end resists drive flange, and the other end resists machine shaft, thus by the internal spline of drive flange and machine shaft external splines it
Between the transition circle segmental arc filling that can not cooperate compress each contact surface, to prevent drive flange phase and by bolt presses
To machine shaft axial float.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
The utility model is of simple structure and low cost, and the axial length, saving material, reduction for reducing drive flange add
Work difficulty improves assembly efficiency, and effectively avoids drive flange with respect to the axial float of machine shaft, reduces the abrasion of spline
Probability, to improve the service life of spline.
Detailed description of the invention
Attached drawing 1 is the explosive view of machine shaft and drive flange in the present embodiment（One）；
Attached drawing 2 is the explosive view of machine shaft and drive flange in the present embodiment（Two）；
Attached drawing 3 is the cross-sectional view in the present embodiment after the assembly of machine shaft and drive flange.
In the figures above：1, machine shaft；10, external splines；11, confined planes；2, drive flange；3, positioning sleeve；4, flange
Pressing plate；5, bolt；6, lock washer.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments：
Embodiment：A kind of motor driving structure of new-energy automobile
Referring to attached drawing 1-3, including machine shaft 1 and drive flange 2, the output end of the machine shaft 1 is equipped with external splines
10, the drive flange 2 is equipped with internal spline, and the machine shaft 1 is cooperated by the internal spline of external splines 10 and drive flange 2
Realize spline connection.
The confined planes 11 for being located at 10 root of external splines with one on the outer peripheral surface of the machine shaft 1, the confined planes
11 radial dimension continuously successively decreases along the axial direction of asymptotic external splines 10；I.e. the confined planes 11 are a circle by 1 edge of machine shaft
The inclined annular slope in direction of asymptotic external splines 10 can reduce the blank diameter of bar, save material.
Further include a positioning sleeve 3, the positioning sleeve 3 be set on machine shaft 1 with 1 clearance fit of machine shaft, it is described
3 one end of positioning sleeve and one end of drive flange 2 towards positioning sleeve 3 lean, i.e. 2 rear end of drive flange is in contact with positioning sleeve 3,
3 other end of positioning sleeve is resisted against on the confined planes 11 of machine shaft 1, is limited by the annular slope.
It further include flange 4 in the present embodiment, which is in contact with 2 front end step of drive flange, and method
Blue pressing plate 4 is fixed on drive flange 2 on an end face of positioning sleeve 3 by bolt 5（That is 2 front end face of drive flange）.And
Lock washer 6 is additionally provided between bolt 5 and flange 4.The output end face of the machine shaft 1 is provided inwardly with screw hole, described
Bolt 5 sequentially passes through lock washer 6 and flange 4, is screwed into the screw hole of machine shaft 1, to realize drive flange 2 and motor
The axial locking of shaft 1.
In the present embodiment, this structure reduces the axial length of drive flange 2, has saved material, reduces difficulty of processing,
Assembly efficiency is improved, is avoided because of 2 axial float of drive flange, the probability of spline wear is reduced, improves the spline service life.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (6)
1. a kind of motor driving structure of new-energy automobile, including machine shaft（1）And drive flange（2）, the machine shaft
（1）Output end be equipped with external splines（10）, the drive flange（2）It is equipped with internal spline, the machine shaft（1）Pass through outer flower
Key（10）With drive flange（2）Internal spline cooperation realize spline connection；
It is characterized in that：The machine shaft（1）Outer peripheral surface on have one be located at the external splines（10）The confined planes of root
（11）, the confined planes（11）Radial dimension along asymptotic external splines（10）Axial direction continuously successively decrease；
It further include a positioning sleeve（3）, the positioning sleeve（3）It is set in machine shaft（1）Upper and machine shaft（1）Clearance fit,
The positioning sleeve（3）One end and drive flange（2）Towards positioning sleeve（3）One end lean, the positioning sleeve（3）The other end supports
Lean against machine shaft（1）Confined planes（11）On, by the confined planes（11）Limit.
2. the motor driving structure of new-energy automobile according to claim 1, it is characterised in that：It further include flange
（4）, the flange（4）Pass through bolt（5）It is fixed on drive flange（2）Backwards to positioning sleeve（3）An end face on.
3. the motor driving structure of new-energy automobile according to claim 2, it is characterised in that：The bolt（5）With method
Blue pressing plate（4）Between be additionally provided with lock washer（6）.
4. the motor driving structure of new-energy automobile according to claim 3, it is characterised in that：The machine shaft（1）
Output end face be provided inwardly with screw hole, the bolt（5）Sequentially pass through lock washer（6）And flange（4）, it is screwed into motor and turns
Axis（1）Screw hole in, to realize drive flange（2）With machine shaft（1）Axial locking.
5. the motor driving structure of new-energy automobile according to claim 1 to 4, it is characterised in that：The confined planes
（11）With machine shaft（1）Between angular range be 15 °~45 °.
6. the motor driving structure of new-energy automobile according to claim 5, it is characterised in that：The confined planes（11）With
Machine shaft（1）Between angle be 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820059378.2U CN208128063U (en) | 2018-01-15 | 2018-01-15 | A kind of motor driving structure of new-energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820059378.2U CN208128063U (en) | 2018-01-15 | 2018-01-15 | A kind of motor driving structure of new-energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208128063U true CN208128063U (en) | 2018-11-20 |
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ID=64205927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820059378.2U Active CN208128063U (en) | 2018-01-15 | 2018-01-15 | A kind of motor driving structure of new-energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208128063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659865A (en) * | 2020-11-16 | 2021-04-16 | 东风商用车有限公司 | Integrated form electricity drives system and vehicle |
-
2018
- 2018-01-15 CN CN201820059378.2U patent/CN208128063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659865A (en) * | 2020-11-16 | 2021-04-16 | 东风商用车有限公司 | Integrated form electricity drives system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.608, FanFeng Road, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: SUZHOU LEGO MOTORS Co.,Ltd. Address before: 215000 Hefeng Road, Hefeng Town, Wuzhong District Town, Suzhou, Jiangsu Patentee before: SUZHOU LEGO MOTORS Co.,Ltd. |