CN207997763U - Motor rear axle drives buffer with motor - Google Patents
Motor rear axle drives buffer with motor Download PDFInfo
- Publication number
- CN207997763U CN207997763U CN201721854766.1U CN201721854766U CN207997763U CN 207997763 U CN207997763 U CN 207997763U CN 201721854766 U CN201721854766 U CN 201721854766U CN 207997763 U CN207997763 U CN 207997763U
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- China
- Prior art keywords
- motor
- axle sleeve
- driving box
- input shaft
- box input
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Abstract
The utility model discloses a kind of motor rear axle motors to drive buffer, include the motor and driving box input shaft of drive connection, helical spline axle sleeve buffering connection structure is provided between the output shaft and driving box input shaft of the motor so that generate speed difference between the output shaft and driving box input shaft of motor and form non-rigid connection structure.The buffer of the utility model is applied between the motor and driving box input shaft of electric vehicle; speed difference is generated using helical spline fit structure; to form non-rigid connection; the speed discrepancy of starting moment can be alleviated; ensure that starting is steady, and the stall phenomenon that big resistance starts situation can be alleviated, protects motor; power consumption and overheat are reduced, the service life of motor is extended.
Description
Technical field
The utility model is related to a kind of driving buffers, belong to vehicle technology field, after referring in particular to a kind of electric vehicle
Bridge drives helical teeth buffer with motor.
Background technology
Electric vehicle is a kind of zero-emission, low noise and the light vehicles, is suitable for the not high occasion of speed limit and uses, especially
It is to be applied than wide in small and medium cities and cities and towns.In electric vehicle structure, motor-driven structure is a key core knot
Structure.Currently, the automobile-used motor-driven structure of the three-wheeled electric with driving box is substantially the output shaft of motor directly by gear etc.
It is rigidly connected between rigid parts and driving box input shaft, existing this drive connection structure, in electric vehicle
Use during there is following drawbacks, such as be easy to cause in electric vehicle ground zero the high instantaneous torque of motor and high turn
Mismatch between speed and drive shaft causes the speed discrepancy of starting moment and electric vehicle is caused to be easy play in starting, deposits
In some potential safety problems, on the other hand, is encountered when big resistance starts in electric vehicle and easy to produce stall phenomenon, not only power consumption,
And be easy that motor is damaged and overheated, influence the service life of motor and other transmission mechanisms.
Utility model content
The purpose of the utility model is to overcome shortcomings and deficiencies in the prior art, provide a kind of motor rear axle electricity consumption
Machine drives buffer, the buffer to be applied between the motor and driving box input shaft of electric vehicle, shape by speed difference
At non-rigid connection, the speed discrepancy of starting moment can be alleviated, ensure that starting is steady, and big resistance can be alleviated and start situation
Stall phenomenon, protect motor, reduce power consumption and superheating phenomenon.
In order to realize that above-mentioned purpose, the utility model are realized according to following technical scheme:
A kind of motor rear axle motor driving buffer includes motor and the driving box input transmission of drive connection
Axis is provided with helical spline axle sleeve buffering connection structure between the output shaft and driving box input shaft of the motor so that
Speed difference is generated between the output shaft and driving box input shaft of motor and forms non-rigid connection structure.
Further, helical spline axle sleeve buffering connection structure include one respectively with the output shaft of motor and driving box
The helical spline axle sleeve of input shaft docking and the first thrust spring and the second thrust bullet positioned at helical spline axle sleeve both sides
Spring, wherein:The inner wall of end that the helical spline axle sleeve is docked with the output shaft of motor is provided with straight-tooth internal spline, helical spline axis
It covers the inner wall of end docked with driving box input shaft and is provided with helical teeth internal spline;First thrust spring is set in motor
Outside output shaft and both ends are contacted with the one end contact of motor output shaft limited step and helical spline axle sleeve respectively;This second
Thrust spring be set in outside driving box input shaft and both ends respectively with driving box input shaft limited step and helical teeth
The other end contact contact of hub splines.
Further, the end set that the output shaft of the motor is docked with helical spline axle sleeve has and helical spline axle sleeve
The straight-tooth external splines of straight-tooth internal spline cooperation;The end set that the driving box input shaft is docked with helical spline axle sleeve has
The helical teeth external splines coordinated with the helical teeth internal spline of helical spline axle sleeve.
Compared with prior art, advantage is the utility model:
The buffer of the utility model is applied between the motor and driving box input shaft of electric vehicle, is spent using helical teeth
Key fit structure generates speed difference, to form non-rigid connection, can alleviate the speed discrepancy of starting moment, ensures that starting is flat
Surely, and the stall phenomenon that big resistance starts situation can be alleviated, protects motor, reduces power consumption and overheat, extend making for motor
Use the service life.
In order to be able to apparent understanding the utility model elaborates the tool of the utility model below with reference to description of the drawings
Body embodiment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged diagram of A in Fig. 1.
Specific implementation mode
As shown in Figure 1, 2, a kind of motor rear axle described in the utility model drives buffer with motor, includes that transmission connects
The motor 1 and driving box 2 connect is provided with helical spline between the output shaft 11 and driving box input shaft 21 of the motor 1
Axle sleeve buffers connection structure 3 so that generates speed difference between the output shaft 11 and driving box input shaft 21 of motor and is formed
Non-rigid connection structure.
Above-mentioned helical spline axle sleeve buffering connection structure 3 includes one to be passed respectively with the output shaft of motor and driving box input
Moving axis docking helical spline axle sleeve 31 and positioned at the first thrust spring 32 of helical spline axle sleeve both sides and the second thrust spring
33, wherein:The inner wall of end that the helical spline axle sleeve 31 is docked with the output shaft 11 of motor is provided with straight-tooth internal spline 311, tiltedly
The inner wall of end that tooth hub splines 31 is docked with driving box input shaft is provided with helical teeth internal spline 312;The first thrust bullet
Spring 32 be set in the outside of output shaft 11 of motor and both ends respectively with motor output shaft limited step and helical spline axle sleeve one
End contact contact;Second thrust spring 33 is set in 21 outside of driving box input shaft and both ends are defeated with driving box respectively
Enter the other end contact contact of transmission shaft limited step and helical spline axle sleeve.
Further, the end set that the output shaft 11 of the motor is docked with helical spline axle sleeve has and helical spline axle sleeve
Straight-tooth internal spline cooperation straight-tooth external splines 111;The end that the driving box input shaft 21 is docked with helical spline axle sleeve
Portion is provided with the helical teeth external splines 211 coordinated with the helical teeth internal spline of helical spline axle sleeve.
The operation principle of the utility model is as described below:Due to leading between the output shaft and driving box input shaft of motor
It crosses helical spline axle sleeve connection structure and forms non-rigid connection, it, can be by motor output shaft by the cushioning effect of helical spline
Speed difference is generated within a certain angle with drive shaft transmission shaft, so as to alleviate the speed discrepancy of starting moment well, is made
It must start to walk steady;And when the stroke of helical spline axle sleeve reaches capacity position, the output shaft of motor and driving box input at this time
Also a kind of positive drive connection type is formed between transmission shaft, ensures the normal use of electric vehicle;On the other hand, helical spline axis
The cushioning effect of set can also alleviate stall phenomenon of the motor when big resistance starts, and reduce power consumption and overheat, protect motor, extend
The service life of motor.
The utility model is not limited to above-mentioned specific implementation mode, if various changes or modifications to the utility model
The spirit and scope of the utility model are not departed from, if these modification and variations belong to the claim of the utility model and are equal
Within technical scope, then the utility model is also intended to include these modification and variations.
Claims (3)
- Include the motor and driving box input shaft of drive connection 1. a kind of motor rear axle drives buffer with motor, It is characterized in that:Helical spline axle sleeve buffering connection knot is provided between the output shaft and driving box input shaft of the motor Structure so that generate speed difference between the output shaft and driving box input shaft of motor and form non-rigid connection structure.
- 2. motor rear axle drives buffer with motor according to claim 1, it is characterised in that:The helical spline axle sleeve Buffering connection structure include a helical spline axle sleeve docked respectively with the output shaft of motor and driving box input shaft and The first thrust spring and the second thrust spring positioned at helical spline axle sleeve both sides, wherein:The helical spline axle sleeve and motor The inner wall of end of output shaft docking is provided with straight-tooth internal spline, the end that helical spline axle sleeve is docked with driving box input shaft Inner wall is provided with helical teeth internal spline;First thrust spring is set in outside the output shaft of motor and both ends are exported with motor respectively The one end contact of axis limited step and helical spline axle sleeve contacts;Second thrust spring is set in driving box input shaft External and both ends are contacted with the other end contact of driving box input shaft limited step and helical spline axle sleeve respectively.
- 3. motor rear axle drives buffer with motor according to claim 2, it is characterised in that:The output shaft of the motor The end set docked with helical spline axle sleeve has the straight-tooth external splines coordinated with the straight-tooth internal spline of helical spline axle sleeve;It is described The end set that driving box input shaft is docked with helical spline axle sleeve has to be coordinated with the helical teeth internal spline of helical spline axle sleeve Helical teeth external splines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854766.1U CN207997763U (en) | 2017-12-25 | 2017-12-25 | Motor rear axle drives buffer with motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854766.1U CN207997763U (en) | 2017-12-25 | 2017-12-25 | Motor rear axle drives buffer with motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207997763U true CN207997763U (en) | 2018-10-23 |
Family
ID=63836383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721854766.1U Active CN207997763U (en) | 2017-12-25 | 2017-12-25 | Motor rear axle drives buffer with motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207997763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372372A (en) * | 2018-11-30 | 2019-02-22 | 广东东箭汽车科技股份有限公司 | Rotation-clogging protection device and electric tail gate strut |
| CN112696438A (en) * | 2020-12-21 | 2021-04-23 | 包科杰 | New forms of energy electric motor car motor shaft and rear axle input shaft buffering connection structure |
-
2017
- 2017-12-25 CN CN201721854766.1U patent/CN207997763U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372372A (en) * | 2018-11-30 | 2019-02-22 | 广东东箭汽车科技股份有限公司 | Rotation-clogging protection device and electric tail gate strut |
| CN109372372B (en) * | 2018-11-30 | 2020-08-11 | 广东东箭汽车科技股份有限公司 | Locked-rotor protection device and electric tail gate stay bar |
| CN112696438A (en) * | 2020-12-21 | 2021-04-23 | 包科杰 | New forms of energy electric motor car motor shaft and rear axle input shaft buffering connection structure |
| CN112696438B (en) * | 2020-12-21 | 2023-02-28 | 包科杰 | New forms of energy electric motor car motor shaft and rear axle input shaft buffering connection structure |
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| GR01 | Patent grant |