CN220198974U - Driving half shaft and electric drive axle - Google Patents
Driving half shaft and electric drive axle Download PDFInfo
- Publication number
- CN220198974U CN220198974U CN202321940388.4U CN202321940388U CN220198974U CN 220198974 U CN220198974 U CN 220198974U CN 202321940388 U CN202321940388 U CN 202321940388U CN 220198974 U CN220198974 U CN 220198974U
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- shaft
- differential
- drive axle
- drive
- electric drive
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a driving half shaft and an electric drive axle. The driving half shaft comprises an input shaft, a middle shaft and an output shaft, wherein two ends of the middle shaft are respectively and rotatably connected with one end of the input shaft and one end of the output shaft through universal transmission devices; the other end of the input shaft is connected with the differential mechanism, and the other end of the output shaft is connected with the hub. The driving half shaft has the advantages of simple structure, convenient assembly and light weight, and can reduce the vibration and noise of the automobile on the road surface, so that the power transmission is stable and reliable.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a driving half shaft and an electric drive axle.
Background
The electric vehicle has no pollution, no emission and low energy consumption, and is increasingly used by people. The electric drive axle is assembled in an electric vehicle, and the electric power is provided for the hub through the driving motor, so that the driving of the vehicle is realized. The electric drive axle has a wider output speed range and is generally provided with a multi-gear speed change output function. The independent suspension electric drive axle can greatly reduce unsprung mass of a suspension system, has obvious performance advantages in the aspect of improving riding comfort, but for medium and heavy vehicles, larger power is required to be transmitted between a motor and wheels, and meanwhile, the regulation limit of the width of the whole vehicle is required to be met, the existing electric drive axle still has the problems of heavy weight, complex assembly, insufficient comfort and the like when the vehicle runs.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide a driving half shaft and an electric drive axle, which meet the power transmission requirement, are simple to assemble and light in weight, and improve the stability of an automobile during running.
The embodiment of the utility model provides a driving half shaft, which comprises an input shaft, a middle shaft and an output shaft, wherein two ends of the middle shaft are respectively in rotary connection with one end of the input shaft and one end of the output shaft through universal transmission devices; the other end of the input shaft is connected with the differential mechanism, and the other end of the output shaft is connected with the hub.
In some embodiments, the universal drive comprises a cross-shaft universal joint.
In some embodiments, the intermediate shaft is a telescoping structure.
In some embodiments, the intermediate shaft comprises a first section shaft and a shaft sleeve, wherein the shaft sleeve is sleeved outside the first section shaft, and the first section shaft is in sliding connection with the shaft sleeve.
In some embodiments, the hub is splined to the output shaft.
The embodiment of the utility model also provides an electric drive axle, which comprises a drive motor, a speed reducer, a differential mechanism and the drive half shaft, wherein the drive motor transmits power to the hub through the speed reducer, the differential mechanism and the drive half shaft in sequence.
In some embodiments, the speed reducer includes a driving gear in meshed connection with the drive shaft of the drive motor and a driven gear in meshed connection with the driving gear.
In some embodiments, the differential includes a differential housing fixedly coupled with the driven gear, a differential planet gear coupled with the differential housing, and a side gear engaged with the side gear.
In some embodiments, the input shaft is splined to the side gear.
In some embodiments, the drive motor is a permanent magnet synchronous motor; the differential mechanism is an anti-slip differential mechanism.
The driving half shaft and the electric drive axle provided by the utility model have the following advantages:
the utility model provides a driving half shaft, which comprises an input shaft, a middle shaft and an output shaft, wherein two ends of the middle shaft are respectively and rotatably connected with one end of the input shaft and one end of the output shaft through universal transmission devices; the other end of the input shaft is connected with the differential mechanism, and the other end of the output shaft is connected with the hub. The driving half shaft has the advantages of simple structure, convenient assembly and light weight, and can reduce the vibration and noise of the automobile on the road surface, so that the power transmission is stable and reliable.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
FIG. 1 is a schematic illustration of an electric drive axle according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of the drive half shaft of FIG. 1;
FIG. 3 is a schematic representation of a drive half shaft according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of the drive half shaft of FIG. 3;
FIG. 5 is a schematic view of an intermediate shaft of a drive half shaft according to an embodiment of the present utility model.
Reference numerals:
10. driving half shaft
11. Input shaft
12. Intermediate shaft
121. First section shaft
122. Shaft sleeve
13. Output shaft
14. Cross axle universal joint
15. Internal spline
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. "or", "or" in the specification may each mean "and" or ".
Other advantages and effects of the present application will be readily apparent to those skilled in the art from the present disclosure, by describing embodiments of the present application with specific examples. The present application may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the present application from different points of view and application without departing from the spirit of the present application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
In order to solve the problems in the prior art, the utility model provides a driving half shaft. As shown in fig. 1 to 5, the driving half shaft 10 comprises an input shaft 11, an intermediate shaft 12 and an output shaft 13, wherein two ends of the intermediate shaft 12 are respectively and rotatably connected with one end of the input shaft 11 and one end of the output shaft 13 through universal transmission devices; the other end of the input shaft 11 is connected with the differential in a meshed manner, and the other end of the output shaft 13 is connected with the hub.
The driving half shaft provided by the utility model has the advantages of simple structure and convenience in assembly, reduces the overall weight of a power system, reduces unsprung mass of a vehicle, reduces the influence of ground impact on the whole power system in the running process of the vehicle, and improves the stability of the vehicle in the running process.
Preferably, as shown in fig. 1-5, the universal drive includes a cross-shaft universal joint 14. The input shaft 11 and the output shaft 13 in the driving half shaft 10 are respectively installed by the cross shaft universal joint 14, and a certain installation clearance exists in the up-down, left-right directions, so that the impact from the ground can be effectively reduced when the vehicle runs, and the power transmission device is suitable for the instantaneous angle change of the input end and the output end during power transmission, and realizes the stable power transmission. In a preferred embodiment, the cross-shaft universal joint 14 is a maintenance-free universal joint, and the maintenance-free universal joint has high-temperature-resistant lubricating grease and a special oil outlet structure, so that the requirement of ultra-long durability can be met, the maintenance-free universal joint realizes universal transmission, product faults caused by untimely maintenance can be avoided, and the service life of the product is prolonged.
Preferably, the intermediate shaft is of a telescopic structure. As shown in fig. 1 and 2, the intermediate shaft includes a first shaft 121 and a shaft sleeve 122, the shaft sleeve 122 is sleeved on the outer portion of the first shaft 121, and the first shaft 121 is slidably connected with the shaft sleeve 122. The sliding connection of the first section shaft 121 and the shaft sleeve 11 can enable the distance change caused by the road surface excitation of the power input end and the power output end to be met when the power is transmitted, and the smooth transmission of the power is realized.
As shown in fig. 2 and 4, the input shaft 11 and the output shaft 13 are provided with internal splines 15, i.e., the hub is splined to the output shaft 13, and the input shaft 11 is splined to the side gear. The spline connection has the advantages of simple installation process, high bearing capacity, large transmission torque and few installation parts, and can reduce the weight of the electric drive axle and reduce vibration noise when the vehicle runs.
The embodiment of the utility model also provides an electric drive axle, which comprises a drive motor, a speed reducer, a differential mechanism and the drive half shaft 10, wherein the drive motor transmits power to the hub through the speed reducer, the differential mechanism and the drive half shaft in sequence, so that the drive of a vehicle is realized.
In one embodiment, the speed reducer comprises a driving gear and a driven gear, wherein the driving gear is in meshed connection with a driving shaft of the driving motor, and the driven gear is in meshed connection with the driving gear. The power output by the driving motor realizes the speed reduction transmission through a speed reducer. The structure of the decelerator is not limited to this example explanation.
In one embodiment, the differential comprises a differential housing, a differential planetary gear and a side gear, wherein the differential housing is fixedly connected with the driven gear, and the driven gear drives the differential housing to rotate; the differential mechanism planetary gear is fixedly connected with the differential mechanism shell, and the planetary gear can be driven to rotate through the differential mechanism shell; the planetary gears of the differential mechanism are meshed with the half shaft gears, so that the planetary gears can output the power transmitted by the speed reducer to the driving half shaft for rotation through the half shaft gears, and the driving hub is rotated, so that the power driving effect is realized.
In some embodiments, the drive motor is a permanent magnet synchronous motor. The driving motor is a permanent magnet synchronous motor, and the permanent magnet synchronous motor has the advantages of high power density, large peak torque, small noise, vibration, weight and size, and can ensure the efficient operation of the motor.
In some embodiments, the differential is a non-slip differential. The differential mechanism is an anti-slip differential mechanism, and can overcome the defect that when a common differential mechanism runs on a muddy road or an ice-snow road or the like due to the fact that torque is evenly distributed to left and right wheels, one side wheel slips on the spot due to contact with the muddy road or the ice-snow road, and the driving wheel on the road with the good side on the road is in a stationary state, so that the passing capacity of an automobile is reduced. Of course, the differential may be of other known construction.
In the above embodiments, the electric drive axle is a distributed wheel-side electric drive axle. Of course, the electric drive axle can be of other types, and the requirements of stability during vehicle running can be met through the scheme of the utility model, so that the comfort during vehicle running is improved.
The driving half shaft and the electric drive axle provided by the utility model have the following advantages:
the utility model provides a driving half shaft, which comprises an input shaft, a middle shaft and an output shaft, wherein two ends of the middle shaft are respectively and rotatably connected with one end of the input shaft and one end of the output shaft through universal transmission devices; the other end of the input shaft is connected with the differential mechanism, and the other end of the output shaft is connected with the hub. The driving half shaft has the advantages of simple structure, convenient assembly and light weight, and can reduce the vibration and noise of the automobile on the road surface, so that the power transmission is stable and reliable.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (10)
1. The driving half shaft is characterized by comprising an input shaft, an intermediate shaft and an output shaft, wherein two ends of the intermediate shaft are respectively in rotary connection with one end of the input shaft and one end of the output shaft through universal transmission devices; the other end of the input shaft is connected with the differential mechanism, and the other end of the output shaft is connected with the hub.
2. The drive half shaft of claim 1, wherein the universal transmission comprises a cross-shaft universal joint.
3. The drive half shaft of claim 1, wherein the intermediate shaft is of a telescoping construction.
4. The drive half shaft of claim 3, wherein the intermediate shaft comprises a first section shaft and a sleeve, the sleeve being sleeved on the exterior of the first section shaft, the first section shaft being slidably connected to the sleeve.
5. The drive half shaft of claim 1, wherein the hub is splined to the output shaft.
6. An electric drive axle comprising a drive motor, a reduction gear, a differential and a drive axle shaft according to any one of claims 1 to 5, said drive motor transmitting power to said hub through said reduction gear, said differential and said drive axle shaft in sequence.
7. The electric drive axle of claim 6, wherein the decelerator includes a driving gear in meshed connection with a drive shaft of the drive motor and a driven gear in meshed connection with the driving gear.
8. The electric drive axle of claim 7 wherein the differential includes a differential housing fixedly connected to the driven gear, differential planet gears connected to the differential housing, and side gears engaged with the side gears.
9. The electric drive axle of claim 8, wherein the input shaft is splined to the side gear.
10. The electric drive axle of claim 6, wherein the drive motor is a permanent magnet synchronous motor; the differential mechanism is an anti-slip differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940388.4U CN220198974U (en) | 2023-07-21 | 2023-07-21 | Driving half shaft and electric drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940388.4U CN220198974U (en) | 2023-07-21 | 2023-07-21 | Driving half shaft and electric drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220198974U true CN220198974U (en) | 2023-12-19 |
Family
ID=89146768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321940388.4U Active CN220198974U (en) | 2023-07-21 | 2023-07-21 | Driving half shaft and electric drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220198974U (en) |
-
2023
- 2023-07-21 CN CN202321940388.4U patent/CN220198974U/en active Active
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