CN212332285U - Three-stage planet row speed reduction non-shaft installation electric bridge assembly - Google Patents
Three-stage planet row speed reduction non-shaft installation electric bridge assembly Download PDFInfo
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- CN212332285U CN212332285U CN202020685493.8U CN202020685493U CN212332285U CN 212332285 U CN212332285 U CN 212332285U CN 202020685493 U CN202020685493 U CN 202020685493U CN 212332285 U CN212332285 U CN 212332285U
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Abstract
The utility model provides a three-level planet row speed reduction non-axle installation electric bridge assembly, which comprises a motor, a three-level speed reduction gear, a differential mechanism, an axle tube, a speed reducer, a differential mechanism shell and a motor shell, wherein the motor is connected with the differential mechanism through two-level speed reduction gears arranged in a planet row and then through the third-level speed reduction gear, the differential mechanism is connected with the axle tube, and the axes of the three-level speed reduction gears are parallel; the motor shaft is coaxial with the axle axis, the three-stage reduction gear and the differential are integrated into a whole, are not mounted on the speed reducer and the differential shell above the axle, and are coaxially connected with wheels on two sides; the motor is disposed within a separate motor housing. The utility model discloses an adopt tertiary speed reduction, realize big velocity ratio speed reduction, the great power take off is realized to the increase moment of torsion.
Description
Technical Field
The utility model belongs to the technical field of the axle transmission, concretely relates to speed reduction non-axle installation electric bridge assembly is arranged to tertiary planet.
Background
In the face of increasingly stringent requirements of fuel consumption and emission regulations of automobiles, more and more automobile manufacturers consider adopting a driving motor to replace a traditional engine, and forming an electric drive axle system together with a speed reducer and a differential to realize the electric driving of the driving system. The pure electric vehicle is used as a future vehicle development direction capable of relieving energy problems and environmental problems, more and more scientific research institutions, universities and enterprises increase the investment on the research of the pure electric vehicle, the novel pure electric vehicle mainly adopts electric transmission, and compared with the traditional mechanical transmission, the electric transmission has many advantages, such as whole vehicle structural arrangement, stepless speed change and improvement of the whole vehicle dynamic performance and economic performance, but because of the limitation of a motor and a control technology thereof, the pure electric vehicle can not exert the advantages to the maximum, the problems of too wide motor rotating speed range, poor differential control effect and the like are increasingly prominent. The transmission mode of the motor is small in gear ratio, the variable speed output of the motor cannot be well realized, the working strength of the motor is increased, the transmission mode is not stable in operation, and the motor cannot be well adapted to high-speed operation of the motor.
The electric drive axle with reduction gear and differential has been proposed among the prior art, discloses a tertiary speed reduction electric drive axle of horizontal integrated form like chinese patent CN208021190U, including the axle housing, be equipped with differential, semi-axis in the axle housing, semi-axis connection wheel hub, wheel hub is equipped with hydraulic brake, manual brake parking brake, still includes driving motor, driving motor passes through the power input shaft and transmits power to three-gear main reducer, three-gear main reducer connects differential, the semi-axis is connected to the differential, the semi-axis drives wheel hub and rotates. The structure is a three-level speed reduction electric drive axle, and can realize large-speed-ratio speed reduction.
The prior art still has some defects. Only be in the same place tertiary reduction gear is integrated, and differential mechanism sets up inside the axle housing, and its integrated level is not high, and the motor casing still needs the erection joint between differential mechanism shell and the reduction gear shell, and the structure is complicated, and it is great to have caused the volume of transaxle, and it is great to match the space requirement with whole car, and the suitability is not good.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a non-axle installation electric bridge assembly of speed reduction is arranged to tertiary planet, and it is not high to solve its integrated level of current electric drive axle assembly of taking tertiary reduction gear, and the motor casing still needs the erection joint between differential case and the reduction gear casing, and the structure is complicated, and it is great to have caused the volume of transaxle, and it is great to match the space requirement with whole car, and the not good scheduling problem of suitability.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a three-level planet row speed reduction non-shaft installation electric bridge assembly comprises a motor, a three-level speed reduction gear set, a differential mechanism, an axle tube, a speed reducer, a differential mechanism shell and a motor shell, wherein the three-level speed reduction gear set comprises a planet row speed reduction gear set and a third-level speed reduction gear which are in meshed connection; the motor shaft is coaxial with the axle axis, the three-stage reduction gear set and the differential are integrated into a whole, are not mounted on the speed reducer and the differential shell above the axle, and are coaxially connected with wheels on two sides; the motor is disposed within a separate motor housing.
Further, the differential is a Torsen differential
The utility model has the advantages that:
1. three-stage speed reduction is adopted, so that high-speed-ratio speed reduction is realized, torque is increased, and high power output is realized.
2. The speed reducer shell, the differential shell and the motor shell are integrated, the assembly process is simplified, the size is smaller, and the adaptability of the whole vehicle is better.
3. The axle axes of the motor shafts are coaxial, so that the installation is more compact.
4. Adopt non-axle installation for differential mechanism and transmission shaft do not set up in the axle housing, are convenient for assemble and later maintenance dismantlement, and the axle design is simplified.
Drawings
Fig. 1 is a schematic structural view of a three-stage planetary gear speed-reducing non-shaft-mounted bridge assembly according to the present invention.
In the figure, 1, a motor; 2. a planetary row reduction gear set; 3. a third stage reduction gear; 4. a differential mechanism; 5. A bridge pipe; 6. a wheel; 7. speed reducer and differential housing; 8. a motor housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A three-level planet row speed reduction non-shaft installation electric bridge assembly comprises a motor 1, a three-level speed reduction gear set, a differential mechanism 4, a bridge pipe 5, a speed reducer, a differential mechanism shell 7 and a motor shell 8, wherein the three-level speed reduction gear set comprises a planet row speed reduction gear set 2 and a third-level speed reduction gear 3 which are in meshed connection, the motor 1 is connected with the differential mechanism 4 through the planet row speed reduction gear set 2 which is arranged in a planet row, the differential mechanism 4 is connected with the bridge pipe 5, and the axes of the speed reduction gears in the three-level speed reduction gear set are parallel; a motor shaft is coaxial with the axle axis, a three-stage reduction gear set and a differential are integrated into a whole, are not mounted on a speed reducer above the axle and a differential shell 7, and are coaxially connected with wheels 6 on two sides; the motor is arranged in a separate motor housing 8.
The utility model discloses a power transmission route: the power output by the motor is transmitted to the differential mechanism through a three-stage speed reducing mechanism formed by the planet row and the parallel speed reducing gear, and then the power is transmitted to the wheels on the left side and the right side by the differential mechanism through the axle tube.
The utility model discloses a tertiary reduction gear group realizes big velocity ratio speed reduction, and great power take off is realized to the increase moment of torsion. The speed reducer shell, the differential shell and the motor shell are integrated, the assembly process is simplified, the size is smaller, and the adaptability of the whole vehicle is better. The motor shaft and the axle axis are coaxial, so that the installation is more compact. Adopt non-axle installation for differential mechanism and transmission shaft do not set up in the axle housing, are convenient for assemble and later maintenance dismantlement, and the axle design is simplified.
As a further preferred aspect, the differential is a tosen differential.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (2)
1. The utility model provides a non-axle installation electric bridge assembly of three-level planet row speed reduction which characterized in that: the motor is connected with the differential mechanism through the planetary reduction gear set arranged in a planetary row and the third reduction gear, the differential mechanism is connected with the bridge pipe, and the axes of the reduction gears in the three-level reduction gear set are parallel; the motor shaft is coaxial with the axle axis, the three-stage reduction gear set and the differential are integrated into a whole, are not mounted on the speed reducer and the differential shell above the axle, and are coaxially connected with wheels on two sides; the motor is disposed within a separate motor housing.
2. The three-stage planet-row deceleration non-axle-mounted bridge assembly according to claim 1, characterized in that: the differential is a Torsen differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685493.8U CN212332285U (en) | 2020-04-29 | 2020-04-29 | Three-stage planet row speed reduction non-shaft installation electric bridge assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685493.8U CN212332285U (en) | 2020-04-29 | 2020-04-29 | Three-stage planet row speed reduction non-shaft installation electric bridge assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212332285U true CN212332285U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020685493.8U Active CN212332285U (en) | 2020-04-29 | 2020-04-29 | Three-stage planet row speed reduction non-shaft installation electric bridge assembly |
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| CN (1) | CN212332285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469604A (en) * | 2020-04-29 | 2020-07-31 | 广西玉柴机器股份有限公司 | Three-stage planet row speed reduction non-shaft installation electric bridge assembly |
-
2020
- 2020-04-29 CN CN202020685493.8U patent/CN212332285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469604A (en) * | 2020-04-29 | 2020-07-31 | 广西玉柴机器股份有限公司 | Three-stage planet row speed reduction non-shaft installation electric bridge assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220919 Address after: No. 9, Keyuan East 11th Road, High-tech Zone, Nanning City, Guangxi Zhuang Autonomous Region, 530009 Patentee after: Yuchaixinlan New Energy Power Technology Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
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| TR01 | Transfer of patent right |