CN117719316A - Parallel shaft type rear motor electric drive bridge - Google Patents
Parallel shaft type rear motor electric drive bridge Download PDFInfo
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- CN117719316A CN117719316A CN202311852312.0A CN202311852312A CN117719316A CN 117719316 A CN117719316 A CN 117719316A CN 202311852312 A CN202311852312 A CN 202311852312A CN 117719316 A CN117719316 A CN 117719316A
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- rear motor
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- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000009467 reduction Effects 0.000 claims description 20
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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Abstract
A parallel shaft type rear motor electric drive axle belongs to the technical field of electric vehicles and comprises a motor, a shaft A, a shaft B, a shaft C and a gear shifting mechanism; an output shaft of the motor is connected with one end of a shaft A, and a gear of the shaft A is arranged at the other end of the shaft A; the two ends of the shaft B are respectively provided with a shaft B high-gear and a shaft B low-gear, and the shaft C is rotatably sleeved with a shaft C high-gear and a shaft C low-gear; the gear of the shaft A is meshed with the gear of the shaft B, the gear of the shaft B is meshed with the gear of the shaft C, and the gear of the shaft B is meshed with the gear of the shaft C; the gear shifting mechanism can connect the high-gear of the shaft C with the shaft C or connect the low-gear of the shaft C with the shaft C; the shaft C is connected with a wheel edge speed reducing mechanism through a planetary speed reducing mechanism and a differential mechanism assembly. The parallel shaft type rear motor electric drive bridge is reasonable in design, ingenious in structure, capable of saving chassis space, convenient for arranging more batteries, capable of effectively improving the endurance mileage of a vehicle and beneficial to development of electric vehicles.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a parallel shaft type rear motor electric drive bridge.
Background
With the rapid development of the automobile industry, automobiles are developing toward electromotive, integrated, lightweight, high efficiency and the like. At present, the traditional electric commercial vehicle generally adopts a mode that a motor directly replaces an engine, a motive power transmission structure is kept unchanged, a transmission system in the middle of the vehicle can occupy more chassis space, batteries are inconvenient to arrange, and development of the new energy commercial vehicle is affected.
Disclosure of Invention
The invention aims to overcome the defects of large occupied chassis space and inconvenience in arrangement of batteries in the prior art, and provides the parallel shaft type rear motor electric drive bridge which is reasonable in design, ingenious in structure, capable of saving chassis space, convenient for arrangement of more batteries, capable of effectively improving the endurance mileage of a vehicle and beneficial to development of an electric automobile.
The invention is realized by the following technical scheme: a parallel shaft type rear motor electric drive bridge comprises a motor, a shaft A, a shaft B, a shaft C and a gear shifting mechanism; an output shaft of the motor is connected with one end of a shaft A, and a gear of the shaft A is arranged at the other end of the shaft A; the two ends of the shaft B are respectively provided with a shaft B high-gear and a shaft B low-gear, and a shaft C high-gear and a shaft C low-gear are rotatably sleeved on the shaft C; the gear of the shaft A is normally meshed with the gear of the shaft B, the gear of the shaft B is normally meshed with the gear of the shaft C, and the gear of the shaft B is normally meshed with the gear of the shaft C; the gear shifting mechanism can connect the high gear of the shaft C with the shaft C or the gear shifting mechanism can connect the low gear of the shaft C with the shaft C; the shaft C is connected with a planetary reduction mechanism, the planetary reduction mechanism is connected with a differential mechanism assembly, and the differential mechanism assembly is connected with a wheel edge reduction mechanism.
Further improvements of the invention are that the planetary reduction mechanism comprises a sun gear, a planet gear and a planet gear shaft, the shaft C is connected with the sun gear, the sun gear is in constant mesh with the planet gear, and the planet gear is fixed on the planet gear shaft.
A further development of the invention provides that the shaft C is connected to the sun wheel by means of splines.
A further development of the invention provides that the differential housing of the differential assembly is fixedly connected to the planetary wheel axle.
According to the invention, one end of the shaft A is fixedly connected with an output shaft of the motor through a spline, and the other end of the shaft A is fixedly connected with a gear of the shaft A through a spline.
The invention further improves that the two ends of the shaft B are respectively connected with the high gear of the shaft B and the low gear of the shaft B through splines.
The invention further improves that the high gear of the shaft C and the low gear of the shaft C are sleeved on the shaft C in an empty mode.
A further improvement of the present invention is that the differential assembly is connected to the wheel-side reduction mechanism by a half shaft.
According to a further improvement of the invention, one end of the half shaft is connected with the differential mechanism assembly through a spline, and the other end of the half shaft is connected with the wheel edge speed reducing mechanism.
A further development of the invention provides that the hub reduction mechanism is mounted in a drive wheel.
The beneficial effects of the invention are as follows: through using this electricity to drive the bridge, can integrate parts such as motor, reduction gear, controller to the axle to can also arrange the motor at the rear of car direction of travel, just so can make the car leave more middle part spaces, thereby practiced thrift the chassis space, more chassis spaces can be used for arranging more batteries, promoted the continuation of journey mileage of vehicle greatly, be favorable to electric automobile's development.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a schematic diagram of power transmission according to an embodiment of the present invention.
Fig. 3 is an assembly view of an embodiment of the present invention.
1. A motor; 2. an axis A; 3. a shaft A gear; 4. an axis B; 5. a shaft B high gear; 6. a shaft B low gear; 7. a gear shifting mechanism; 8. a shaft C high gear; 9. an axis C; 10. shaft C low gear; 11. a planetary reduction mechanism; 12. a sun gear; 13. a planet wheel; 14. a planetary wheel shaft; 15. a differential assembly; 16. a half shaft; 17. wheel side speed reducing mechanism.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.
Referring now to fig. 1-3, in connection with the specific embodiments, the following is described: the invention relates to a parallel shaft type rear motor electric drive bridge, which comprises a motor 1, a shaft A2, a shaft B4, a shaft C9 and a gear shifting mechanism 7; an output shaft of the motor 1 is connected with one end of a shaft A2 through a spline, and the other end of the shaft A2 is connected with a shaft A gear 3 through a spline; the two ends of the shaft B4 are respectively connected with a shaft B high-gear 5 and a shaft B low-gear 6 through splines, and a shaft C high-gear 8 and a shaft C low-gear 10 are sleeved on the upper part of the shaft C9; the gear 3 of the shaft A is meshed with the gear 5 of the shaft B, the gear 5 of the shaft B is meshed with the gear 8 of the shaft C, and the gear 6 of the shaft B is meshed with the gear 10 of the shaft C. It follows that the rotation of the motor 1, through the series of gear rotations described above, eventually becomes the rotation of the shaft C high gear 8 or the shaft C low gear 10.
The shift mechanism 7 can connect the shaft C high gear 8 with the shaft C9 or the shift mechanism 7 can connect the shaft C low gear 10 with the shaft C9. The specific structure and mounting manner of the gear shifting mechanism 7 can be seen in the prior art, and the actual operation conditions are as follows: the gear shifting mechanism 7 slides leftwards to connect the high gear 8 and the shaft C9, so that the high gear is changed; the shift mechanism 7 slides rightward to connect the shaft C low gear 10 and the shaft C9 to change to a low gear.
The shaft C9 is connected with a planetary reduction mechanism 11, and the planetary reduction mechanism 11 is composed of a sun gear 12, a planet gear 13, a planet wheel shaft 14 and other parts, as seen in the prior art. The shaft C9 is connected with the sun gear 12 by a spline, the sun gear 12 is in constant mesh with the planet gears 13, and the planet gears 13 are fixed on the planet gear shafts 14.
The planetary reduction mechanism 11 is connected with a differential mechanism assembly 15; specifically, the planetary axle 14 is fixedly connected to the differential housing of the differential assembly 15. The differential mechanism assembly 15 is connected with a wheel edge speed reducing mechanism 17 through a half shaft 16, and the wheel edge speed reducing mechanism 17 is arranged in a driving wheel; specifically, one end of the half shaft 16 is connected with the differential assembly 15 through a spline, and the other end of the half shaft 16 is connected with the wheel-side speed reducing mechanism 17. The transmission of power is realized through the connection structure between the planetary reduction mechanism 11 and the differential mechanism assembly 15; meanwhile, through the connecting structure between the differential assembly 15 and the wheel-side reducing mechanism 17, power transmission between the differential assembly 15 and the driving wheels is realized.
When the electric drive axle is actually assembled, referring to fig. 3, the components of the shaft A2, the shaft B4, the shaft C9, the planetary reduction mechanism 11 and the like are packaged in a shell.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The parallel shaft type rear motor electric drive bridge comprises a motor (1), a shaft A (2), a shaft B (4), a shaft C (9) and a gear shifting mechanism (7), and is characterized in that an output shaft of the motor (1) is connected with one end of the shaft A (2), and a shaft A gear (3) is arranged at the other end of the shaft A (2); the two ends of the shaft B (4) are respectively provided with a shaft B high-gear (5) and a shaft B low-gear (6), and a shaft C high-gear (8) and a shaft C low-gear (10) are rotatably sleeved on the shaft C (9); the shaft A gear (3) is normally meshed with the shaft B high-gear (5), the shaft B high-gear (5) is normally meshed with the shaft C high-gear (8), and the shaft B low-gear (6) is normally meshed with the shaft C low-gear (10); the gear shifting mechanism (7) can connect the shaft C high-gear (8) with the shaft C (9) or connect the shaft C low-gear (10) with the shaft C (9); the shaft C (9) is connected with a planetary reduction mechanism (11), the planetary reduction mechanism (11) is connected with a differential mechanism assembly (15), and the differential mechanism assembly (15) is connected with a wheel edge reduction mechanism (17).
2. A parallel shaft type rear motor electric drive axle according to claim 1, characterized in that the planetary reduction mechanism (11) comprises a sun gear (12), a planetary gear (13) and a planetary gear shaft (14), the shaft C (9) is connected with the sun gear (12), the sun gear (12) is in constant mesh with the planetary gear (13), and the planetary gear (13) is fixed on the planetary gear shaft (14).
3. A parallel shaft type rear motor electric drive axle according to claim 2, characterized in that the shaft C (9) is connected to the sun wheel (12) by means of splines.
4. A parallel shaft type rear motor electric drive axle according to claim 2 or 3, characterized in that the differential housing of the differential assembly (15) is fixedly connected to the planetary axle (14).
5. The parallel shaft type rear motor electric drive bridge according to claim 1, wherein one end of the shaft a (2) is fixedly connected with an output shaft of the motor (1) through a spline, and the other end of the shaft a (2) is fixedly connected with the shaft a gear (3) through a spline.
6. The parallel shaft type rear motor electric drive axle according to claim 1, wherein two ends of the shaft B (4) are respectively connected with the shaft B high gear (5) and the shaft B low gear (6) through splines.
7. A parallel shaft type rear motor electric drive axle according to claim 1, characterized in that the shaft C high gear (8) and the shaft C low gear (10) are empty sleeved on the shaft C (9).
8. A parallel shaft rear motor electric drive axle according to claim 1, characterized in that the differential assembly (15) is connected to the wheel-side reduction (17) via half shafts (16).
9. A parallel shaft type rear motor electric drive axle according to claim 8, characterized in that one end of the half shaft (16) is connected with the differential assembly (15) through a spline, and the other end of the half shaft (16) is connected with the wheel side reduction mechanism (17).
10. A parallel shaft type rear motor electric drive axle according to claim 9, characterized in that the hub reduction mechanism (17) is mounted in the drive wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852312.0A CN117719316A (en) | 2023-12-28 | 2023-12-28 | Parallel shaft type rear motor electric drive bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852312.0A CN117719316A (en) | 2023-12-28 | 2023-12-28 | Parallel shaft type rear motor electric drive bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117719316A true CN117719316A (en) | 2024-03-19 |
Family
ID=90208851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311852312.0A Pending CN117719316A (en) | 2023-12-28 | 2023-12-28 | Parallel shaft type rear motor electric drive bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117719316A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644262A (en) * | 2021-01-07 | 2021-04-13 | 中国重汽集团济南动力有限公司 | Double-motor electric drive axle of belt wheel side speed reducer |
| CN114655003A (en) * | 2022-03-23 | 2022-06-24 | 索特传动设备有限公司 | Electric drive axle and vehicle |
| CN218112338U (en) * | 2022-08-15 | 2022-12-23 | 江苏华永复合材料有限公司 | Three-level speed reduction single motor two-gear electric drive bridge |
| CN218777398U (en) * | 2022-11-23 | 2023-03-31 | 江苏华永复合材料有限公司 | Three-gear electric drive bridge structure |
| CN117021921A (en) * | 2023-08-21 | 2023-11-10 | 浙江轩孚科技有限公司 | Dual-motor electric drive axle assembly and vehicle thereof |
-
2023
- 2023-12-28 CN CN202311852312.0A patent/CN117719316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644262A (en) * | 2021-01-07 | 2021-04-13 | 中国重汽集团济南动力有限公司 | Double-motor electric drive axle of belt wheel side speed reducer |
| CN114655003A (en) * | 2022-03-23 | 2022-06-24 | 索特传动设备有限公司 | Electric drive axle and vehicle |
| CN218112338U (en) * | 2022-08-15 | 2022-12-23 | 江苏华永复合材料有限公司 | Three-level speed reduction single motor two-gear electric drive bridge |
| CN218777398U (en) * | 2022-11-23 | 2023-03-31 | 江苏华永复合材料有限公司 | Three-gear electric drive bridge structure |
| CN117021921A (en) * | 2023-08-21 | 2023-11-10 | 浙江轩孚科技有限公司 | Dual-motor electric drive axle assembly and vehicle thereof |
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