CN207931454U - A kind of long-life rear axle of electric automobile - Google Patents
A kind of long-life rear axle of electric automobile Download PDFInfo
- Publication number
- CN207931454U CN207931454U CN201820345959.2U CN201820345959U CN207931454U CN 207931454 U CN207931454 U CN 207931454U CN 201820345959 U CN201820345959 U CN 201820345959U CN 207931454 U CN207931454 U CN 207931454U
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- CN
- China
- Prior art keywords
- shaft
- input shaft
- rear axle
- motor
- tail portion
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000010687 lubricating oil Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model provides a kind of long-life rear axle of electric automobile, belongs to electric vehicle engineering field.It is big that it solves the problems, such as that existing splined shaft is worn.This long-life rear axle of electric automobile includes rear axle main body, it is provided with main reducing gear in rear axle main body, motor is provided on main reducing gear, there is the input shaft being connected with the motor shaft of motor on main reducing gear, axis hole is offered in the middle part of input shaft, motor shaft is by shaft head, axis tail portion forms, external splines is provided on shaft head, the maximum gauge of external splines is less than the diameter of axis tail portion, it is provided with input gear on the outer wall of input shaft, it is provided on the inner wall of input shaft and the matched internal spline of external splines on motor shaft, it is provided with O-ring seal between axis tail portion and input shaft, concave ring groove is offered on the axis tail portion of motor shaft and input shaft, the end of input shaft axis hole is provided with sealing sprue, it is located between sealing sprue and motor shaft in the axis hole of input shaft and is filled with lubricating oil.The utility model has the advantages that abrasion is small.
Description
Technical field
The utility model belongs to electric vehicle engineering field, is related to a kind of long-life rear axle of electric automobile.
Background technology
With the getting worse of petroleum resources increasingly reduced with atmosphere pollution, new-energy automobile is becoming exploitation heat
The exploitation of point, especially electric vehicle, it has also become the emphasis of new energy development.The two big masters of rear axle and motor as electric vehicle
Accessory, quality and performance is wanted more and more to be taken seriously, but the connection between motor and rear axle is ignored by most of producer, splined shaft
It is a kind of input shaft being widely used in motor and rear axle of electric automobile transmission.
Motor applies splined shaft larger twisting resistance at present, splined shaft can cause in prolonged operating with healing up and
Root gap fever, abrasion, reduce the service life of sliding key shaft, or even cause the damage of splined shaft.
Invention content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, provide a kind of service life it is long and
Wear low rear axle of electric automobile.
The purpose of this utility model can be realized by following technical proposal：A kind of long-life rear axle of electric automobile, including
Rear axle main body is provided with main reducing gear in the rear axle main body, is provided on the main reducing gear and drives main reducing gear work
The motor of work has the input shaft being connected with the motor shaft of motor on the main reducing gear, which is characterized in that described is defeated
Enter to offer the axis hole that power supply arbor stretches into the middle part of axis, the motor shaft is made of shaft head, axis tail portion, the shaft head
On be provided with external splines, and the maximum gauge of external splines is less than the diameter of axis tail portion, is provided on the outer wall of the input shaft defeated
Enter gear, be provided on the inner wall of the input shaft with the matched internal spline of external splines on motor shaft, the axis tail portion with
Be provided with the O-ring seal with sealing effect between input shaft, the axis tail portion of the motor shaft with opened up on input shaft
There are the concave ring groove being embedded in for O-ring seal, the end of the input shaft axis hole to be provided with sealing sprue, the axis hole of the input shaft
It is interior to be located between sealing sprue and motor shaft filled with lubricating oil.
In a kind of above-mentioned long-life rear axle of electric automobile, the sealing sprue and input shaft are mutually tight by screw thread
Gu.
In a kind of above-mentioned long-life rear axle of electric automobile, the input gear is integrated setting with input shaft.
In a kind of above-mentioned long-life rear axle of electric automobile, the shaft head passes through the company with radian with axis tail portion
Socket part is connected.
In a kind of above-mentioned long-life rear axle of electric automobile, the shaft head, axis tail portion and interconnecting piece are integrally formed.
Compared with prior art, this long-life rear axle of electric automobile is provided between axis tail portion and input shaft with sealing
Concave ring groove be embedded in for O-ring seal is offered on the O-ring seal of effect, the axis tail portion of motor shaft and input shaft, input
The end of axis axis hole is provided with sealing sprue, seals and is filled with lubricating oil between sprue and motor shaft.Due to the presence of lubricating oil,
The abrasion of input shaft and motor shaft in the process of running is reduced, and the temperature of part will not increase, due to sealing sprue and O-shaped close
The presence of seal, lubricating oil will not be flowed out from input shaft axis hole.
Description of the drawings
Fig. 1 is overall structure diagram in this long-life rear axle of electric automobile.
Fig. 2 is the enlarged drawing of circle A in overall structure diagram in this long-life rear axle of electric automobile.
In figure, 1, rear axle main body；2, main reducing gear；3, motor；4, motor shaft；5, input shaft；6, axis hole；7, shaft head；
8, axis tail portion；9, external splines；10, input gear；11, internal spline；12, O-ring seal；13, concave ring groove；14, sprue is sealed；
15, lubricating oil；16, interconnecting piece.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 and Figure 2, this long-life rear axle of electric automobile, including rear axle main body 1 are provided with master in rear axle main body 1
Retarder 2 is provided with the motor 3 for driving main reducing gear 2 to work on main reducing gear 2, has the electricity with motor 3 on main reducing gear 2
The middle part of the input shaft 5 that arbor 4 is connected, input shaft 5 offers the axis hole 6 that power supply arbor 4 stretches into, and motor shaft 4 is by shaft head
7, axis tail portion 8 forms, and external splines 9 is provided on shaft head 7, and the maximum gauge of external splines 9 is less than the diameter of axis tail portion 8, defeated
Enter and be provided with input gear 10 on the outer wall of axis 5, is provided on the inner wall of input shaft 5 matched with external splines 9 on motor shaft 4
Internal spline 11 is provided with the O-ring seal 12 with sealing effect, the axis tail portion 8 of motor shaft 4 between axis tail portion 8 and input shaft 5
With the concave ring groove 13 being embedded in for O-ring seal 12 is offered on input shaft 5, the end of 5 axis hole 6 of input shaft is provided with seal plug
Block 14, the axis hole 6 of input shaft 5 is interior to be located between sealing sprue 14 and motor shaft 4 filled with lubricating oil 15.
It further describes in detail, in order to keep sealing effect more preferable, sealing sprue 14 is fastened with input shaft 5 by screw thread.
As preferred structure, input gear 10 is integrated setting with input shaft 5.
It further describes in detail, in order to keep connection more firm, shaft head 7 passes through 16 phase of interconnecting piece with radian with axis tail portion 8
Connection.
As preferred structure, shaft head 7, axis tail portion 8 and interconnecting piece 16 are integrally formed.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein rear axle main body 1, main reducing gear 2, motor 3, motor shaft 4, input shaft 5, axis hole 6,
Shaft head 7, axis tail portion 8, external splines 9, input gear 10, internal spline 11, O-ring seal 12, concave ring groove 13, sealing sprue 14,
The terms such as lubricating oil 15, interconnecting piece 16, but it does not preclude the possibility of using other terms.The use of these items is only for
More easily describe and explain the essence of the utility model；Being construed as any one of the additional limitations is all and this practicality
What novel spirit was disagreed.
Claims (5)
1. a kind of long-life rear axle of electric automobile, including rear axle main body（1）, the rear axle main body（1）On be provided with main deceleration
Device（2）, the main reducing gear（2）On be provided with drive main reducing gear（2）The motor of work（3）, the main reducing gear（2）
On have and motor（3）Motor shaft（4）The input shaft being connected（5）, which is characterized in that the input shaft（5）Middle part
Offer power supply arbor（4）The axis hole stretched into（6）, the motor shaft（4）By shaft head（7）, axis tail portion（8）Composition, it is described
Shaft head（7）On be provided with external splines（9）, and external splines（9）Maximum gauge be less than axis tail portion（8）Diameter, the input
Axis（5）Outer wall on be provided with input gear（10）, the input shaft（5）Inner wall on be provided with and motor shaft（4）Upper outer flower
Key（9）Matched internal spline（11）, the axis tail portion（8）With input shaft（5）Between be provided with the O-shaped of sealing effect
Sealing ring（12）, the motor shaft（4）Axis tail portion（8）With input shaft（5）On offer for O-ring seal（12）It is embedded
Concave ring groove（13）, the input shaft（5）Axis hole（6）End be provided with sealing sprue（14）, the input shaft（5）Axis hole
（6）It is interior to be located at sealing sprue（14）With motor shaft（4）Between be filled with lubricating oil（15）.
2. a kind of long-life rear axle of electric automobile according to claim 1, which is characterized in that the sealing sprue（14）
With input shaft（5）It is fastened by screw thread.
3. a kind of long-life rear axle of electric automobile according to claim 1, which is characterized in that the input gear（10）
With input shaft（5）It is integrated setting.
4. a kind of long-life rear axle of electric automobile according to claim 1, which is characterized in that the shaft head（7）With
Axis tail portion（8）Pass through the interconnecting piece with radian（16）It is connected.
5. a kind of long-life rear axle of electric automobile according to claim 4, which is characterized in that the shaft head（7）, axis
Tail portion（8）And interconnecting piece（16）It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345959.2U CN207931454U (en) | 2018-03-14 | 2018-03-14 | A kind of long-life rear axle of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345959.2U CN207931454U (en) | 2018-03-14 | 2018-03-14 | A kind of long-life rear axle of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207931454U true CN207931454U (en) | 2018-10-02 |
Family
ID=63654964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820345959.2U Active CN207931454U (en) | 2018-03-14 | 2018-03-14 | A kind of long-life rear axle of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207931454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641267A (en) * | 2019-10-31 | 2020-01-03 | 华晨鑫源重庆汽车有限公司 | Anti-abrasion rear axle assembly of driving motor |
-
2018
- 2018-03-14 CN CN201820345959.2U patent/CN207931454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641267A (en) * | 2019-10-31 | 2020-01-03 | 华晨鑫源重庆汽车有限公司 | Anti-abrasion rear axle assembly of driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A long life electric vehicle rear axle Effective date of registration: 20201228 Granted publication date: 20181002 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: TAIZHOU HENGYUE NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2020330001314 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181002 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: TAIZHOU HENGYUE NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2020330001314 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |