CN210234568U - Automobile and driving axle integrated with planetary gear reduction mechanism thereof - Google Patents
Automobile and driving axle integrated with planetary gear reduction mechanism thereof Download PDFInfo
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- CN210234568U CN210234568U CN201921275943.XU CN201921275943U CN210234568U CN 210234568 U CN210234568 U CN 210234568U CN 201921275943 U CN201921275943 U CN 201921275943U CN 210234568 U CN210234568 U CN 210234568U
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- speed reducer
- drive axle
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Abstract
The utility model provides an automobile and a driving axle of an integrated planetary gear speed reducing mechanism thereof, which comprises a main speed reducer (1), half-axle sleeves (2) positioned at both sides of the main speed reducer (1), a disc type motor (6) fixedly connected with the main speed reducer (1) and steel plate springs (3) symmetrically arranged at both sides of the main speed reducer (1), wherein the output shaft of the disc type motor (6) is parallel to the longitudinal direction of an automobile body and is connected with the input shaft of the main speed reducer (1); the middle part of the steel plate spring (3) is fixedly connected with the semi-shaft sleeve (2), and two ends of the steel plate spring (3) are connected with the vehicle body or the vehicle frame; the half shaft in the half shaft sleeve (2) comprises an inner half shaft and an outer half shaft which are coaxially arranged, a sun gear is arranged on the inner half shaft, a planet carrier is arranged on the outer half shaft, and a planet gear on the planet carrier is meshed with the sun gear. Adopt the utility model provides a drive axle can make the car have stronger power performance, and the holistic security of axle can be guaranteed again simultaneously and higher.
Description
Technical Field
The utility model relates to the field of automotive technology, especially, relate to an automobile and integrated planetary gear reduction mechanism's drive axle thereof.
Background
Along with electric automobile's development, in order to simplify transmission system, generally arrange the motor directly on the axle, because there is a distance between the focus of motor and the axle axis, this has just formed a cantilever structure, in order to guarantee the holistic security of axle as far as possible, can only be equipped with miniature motor usually, and the power that miniature motor can provide is less, the development that leads to whole car dynamic property receives the restriction, consequently, how to improve the axle, both guarantee that the car has stronger dynamic property, avoid reducing the holistic security of axle again, become the technical problem that technical staff in the field awaited attention to solution.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an automobile and integrated planetary gear reduction mechanism's drive axle thereof adopts this drive axle can make the automobile have stronger power performance, can guarantee again that the holistic security of axle is higher simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme:
a driving axle of an integrated planetary gear speed reducing mechanism of an automobile comprises a main speed reducer, half shaft sleeves, a disc motor and steel plate springs, wherein the half shaft sleeves are positioned on two sides of the main speed reducer; the middle part of the steel plate spring is fixedly connected with the half shaft sleeve, and two ends of the steel plate spring are connected with a vehicle body or a vehicle frame; semi-axis in the semi-axis sleeve is the two-stage type structure, including coaxial arrangement's interior semi-axis and external semi-axis, keeping away from of interior semi-axis main reducer's one end is provided with the sun gear, the one end of keeping away from wheel hub of external semi-axis is provided with the planet carrier, the telescopic inner wall of semi-axis is provided with the ring gear, planet wheel on the planet carrier with the sun gear with the ring gear meshing.
Preferably, in the above drive axle, a support plate is welded to an upper surface of the axle sleeve, and a middle portion of the leaf spring is located on the support plate.
Preferably, in the above drive axle, the middle of the leaf spring is located between the support plate and the pressing plate, the support plate and the pressing plate are connected through two U-shaped bolts, the two U-shaped bolts are located on two sides of the axle shaft sleeve, and the U-shaped bolts straddle the leaf spring along the width direction of the leaf spring.
Preferably, in the above drive axle, the upper surface of the pressure plate is provided with a limit groove matched with the U-shaped bolt, and the arc-shaped section of the U-shaped bolt is embedded in the limit groove.
Preferably, in the above drive axle, the housing of the final drive is provided with a flange surface for connecting the disc motor, and the flange surface is provided with mounting holes for mounting bolts.
Preferably, in the above drive axle, a damper is further included that is provided on the axle sleeve, the damper being located between the leaf spring and the final drive.
Preferably, in the above-mentioned drive axle, the sun gear and the inner half shaft are of an integral structure.
Preferably, in the above-mentioned drive axle, the planet carrier and the external half shaft are of an integral structure.
An automobile comprising a drive axle, the drive axle being as disclosed in any one of the above.
According to the technical scheme, the utility model provides an among integrated planetary gear reduction's the drive axle, main reducer and disc motor fixed connection, disc motor's output shaft is on a parallel with the vertical of automobile body, and be connected with main reducer's input shaft, and what main reducer connected is radial motor on traditional drive axle, disc motor has light in weight, and small, the short advantage of axis distance, under the condition of same power, disc motor compares with radial motor, weight and volume can reduce about one-third, and length can reduce about half, consequently, adopt disc motor can reduce the moment of torsion of motor around axle axis gyration, under equal space condition, allow to be equipped with great powerful motor. And simultaneously, the utility model provides a drive axle is provided with leaf spring in main reducer's bilateral symmetry, leaf spring's middle part and axle sleeve fixed connection, leaf spring's both ends and automobile body or connected to frame can form the structure of an antitorque square like this to this improves the stability of axle. To sum up, adopt the utility model provides a drive axle can make the car have stronger dynamic property, can guarantee again simultaneously that the holistic security of axle is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of a drive axle of an integrated planetary gear reduction mechanism for an automobile according to an embodiment of the present invention;
FIG. 2 is a sectional view A-A of FIG. 1;
fig. 3 is a schematic diagram of a segmented axle shaft for driving an axle according to an embodiment of the present invention.
Labeled as:
1. a main reducer; 11. an input shaft; 2. a half-shaft sleeve; 21. an inner half shaft; 22. an outer half shaft; 23. a planet wheel; 24. a ring gear; 3. a leaf spring; 4. pressing a plate; 5. a U-shaped bolt; 6. a disc motor; 7. a shock absorber; 8. and (7) a supporting plate.
Detailed Description
For the sake of understanding, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to fig. 3, fig. 1 is a schematic diagram of a drive axle for an automobile according to an embodiment of the present invention, fig. 2 is a sectional view taken along a-a in fig. 1, and fig. 3 is a schematic diagram of a sectional type half shaft of the drive axle according to an embodiment of the present invention.
The embodiment of the utility model provides a drive axle includes main reducer 1, semi-axis sleeve 2, leaf spring 3 and disc motor 6, wherein, two semi-axis sleeves 2 are located the both sides of main reducer 1, and disc motor 6 is connected with main reducer 1 is fixed, and the output shaft of disc motor 6 is on a parallel with the longitudinal direction of automobile body, and with the input shaft of main reducer 1; two groups of steel plate springs 3 are symmetrically arranged at two sides of the main speed reducer 1, the middle parts of the steel plate springs 3 are fixedly connected with the half shaft sleeve 2, and two ends of each steel plate spring 3 are connected with a vehicle body or a vehicle frame; the half axle in the half axle sleeve 2 is a two-section structure, including the coaxial interior half axle 21 and the external half axle 22 of arranging, the one end of keeping away from final drive 1 of interior half axle 21 is provided with the sun gear, and the one end of keeping away from wheel hub of external half axle 22 is provided with the planet carrier, and the inner wall of half axle sleeve 2 is provided with ring gear 24, and planet wheel 23 on the planet carrier meshes with sun gear and ring gear 24.
In traditional drive axle, what main reducer 1 connected is radial motor, and the utility model provides an in the drive axle, main reducer 1 and 6 fixed connection of disc motor, disc motor have light in weight, small, the short advantage of axis distance, under the condition of same power, disc motor compares with radial motor, weight and volume can reduce about one third, and length can reduce about half, consequently adopts disc motor can reduce the motor around the gyration's of axle axis moment of torsion, under equal space condition, allow to be equipped with more powerful motor. And simultaneously, the utility model provides a drive axle is provided with leaf spring 3 in main reducer 1's bilateral symmetry, leaf spring 3's middle part and half axle sleeve 2 fixed connection, leaf spring 3's both ends and automobile body or connected to frame can form the structure of an antitorque square like this to this improves the stability of axle. To sum up, adopt the utility model provides a drive axle can make the car have stronger dynamic property, can guarantee again simultaneously that the holistic security of axle is higher.
As shown in fig. 3, an output shaft of the disc motor 6 is directly connected to an input shaft 11 of the main reducer 1, a first bevel gear is disposed at an end of the input shaft 11 away from the disc motor 6, a second bevel gear engaged with the first bevel gear is fixedly mounted on a differential housing, a planetary shaft is disposed in the differential, the planetary bevel gear mounted on the planetary shaft is engaged with a half shaft gear, the half shaft gear is mounted on an inner half shaft 21, so that the input shaft 11 drives the differential housing to rotate through the first bevel gear and the second bevel gear, and the differential housing drives the inner half shaft 21 to rotate through the planetary shaft, the planetary bevel gear and the half shaft gear.
In the embodiment, one end of the inner half shaft 21, which is far away from the main speed reducer 1, is a gear shaft, that is, the sun gear and the inner half shaft 21 are of an integrated structure, the outer half shaft 22 is coaxial with the inner half shaft 21, the planet gear 23, which is meshed with the sun gear and the gear ring 24, is mounted on the planet carrier, and the planet carrier and the outer half shaft 22 are of an integrated structure, so that the inner half shaft 21 and the outer half shaft 22 are in transmission connection through a planet gear speed reducing mechanism, and the planet gear speed reducing mechanism completes the two-stage.
The surface of the semi-axis sleeve 2 is an arc surface, in order to enable the steel plate spring 3 to be more firmly connected with the semi-axis sleeve 2, in the embodiment, a supporting plate 8 is welded on the upper surface of the semi-axis sleeve 2, and the middle part of the steel plate spring 3 is positioned on the supporting plate 8.
In order to improve the torsion resistance, the leaf spring 3 is generally fixed on the supporting plate 8 through the pressing plate 4 and the U-shaped bolt 5, as shown in fig. 2, the middle part of the leaf spring 3 is located between the supporting plate 8 and the pressing plate 4, the supporting plate 8 and the pressing plate 4 are connected through the two U-shaped bolts 5, the two U-shaped bolts 5 are located on two sides of the semi-axis sleeve, and the U-shaped bolts 5 straddle the leaf spring 3 along the width direction of the leaf spring 3.
In order to prevent the U-shaped bolt 5 from moving, in this embodiment, the upper surface of the pressing plate 4 is provided with a limiting groove matched with the U-shaped bolt 5, and the arc-shaped section of the U-shaped bolt 5 is embedded in the limiting groove.
In specific practical application, the shell of the disc motor 6 and the shell of the main speed reducer 1 can be designed into an integrated structure, and the disc motor 6 and the main speed reducer 1 can be designed into a detachable connection structure. In this embodiment, a casing of the main reducer 1 is provided with a flange surface for connecting the disc motor 6, the flange surface is provided with mounting holes for mounting bolts, and the disc motor 6 is mounted on the main reducer 1 through the bolts.
As shown in fig. 1, in the present embodiment, a damper 7 is provided on the half shaft sleeve 2 between the leaf spring 3 and the final drive 1.
The utility model also provides a car, this car include the drive axle that above-mentioned embodiment is disclosed. Since the driving axle disclosed in the above embodiments has the above technical effects, an automobile having the driving axle also has the above technical effects, and the details are not repeated herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A driving axle of an integrated planetary gear speed reducing mechanism of an automobile comprises a main speed reducer (1) and axle sleeves (2) positioned at two sides of the main speed reducer (1), and is characterized by further comprising a disc type motor (6) fixedly connected with the main speed reducer (1) and steel plate springs (3) symmetrically arranged at two sides of the main speed reducer (1), wherein an output shaft of the disc type motor (6) is parallel to the longitudinal direction of an automobile body and is connected with an input shaft (11) of the main speed reducer (1); the middle part of the steel plate spring (3) is fixedly connected with the semi-shaft sleeve (2), and two ends of the steel plate spring (3) are connected with a vehicle body or a vehicle frame; semi-axis in semi-axis sleeve (2) is the two-section type structure, including coaxial interior semi-axis (21) and the external half axle (22) of arranging, keeping away from of interior semi-axis (21) the one end of final drive (1) is provided with the sun gear, the one end of keeping away from wheel hub of external half axle (22) is provided with the planet carrier, the inner wall of semi-axis sleeve (2) is provided with ring gear (24), planet wheel (23) on the planet carrier with the sun gear with ring gear (24) meshing.
2. Drive axle according to claim 1, characterized in that a carrier plate (8) is welded to the upper surface of the axle sleeve (2), the middle of the leaf spring (3) being located on the carrier plate (8).
3. The drive axle according to claim 2, characterized in that the middle of the leaf spring (3) is located between the carrier plate (8) and the pressure plate (4), the carrier plate (8) and the pressure plate (4) are connected by two U-bolts (5), the two U-bolts (5) are located on both sides of the axle sleeve, and the U-bolts (5) straddle the leaf spring (3) in the width direction of the leaf spring (3).
4. The drive axle according to claim 3, wherein the upper surface of the pressure plate (4) is provided with a limiting groove matched with the U-shaped bolt (5), and the arc-shaped section of the U-shaped bolt (5) is embedded in the limiting groove.
5. Drive axle according to claim 1, characterized in that the housing of the final drive (1) is provided with a flange surface for connecting the disc motor (6), which flange surface is provided with mounting holes for mounting bolts.
6. Drive axle according to any of claims 1 to 5, further comprising a damper (7) arranged on the axle sleeve (2), the damper (7) being located between the leaf spring (3) and the final drive (1).
7. Drive axle according to claim 6, characterized in that the sun wheel is of one-piece construction with the inner half shaft (21).
8. Drive axle according to claim 7, characterized in that the planet carrier is of one-piece construction with the outer half shaft (22).
9. An automobile comprising a drive axle, wherein the drive axle is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275943.XU CN210234568U (en) | 2019-08-07 | 2019-08-07 | Automobile and driving axle integrated with planetary gear reduction mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275943.XU CN210234568U (en) | 2019-08-07 | 2019-08-07 | Automobile and driving axle integrated with planetary gear reduction mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210234568U true CN210234568U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921275943.XU Active CN210234568U (en) | 2019-08-07 | 2019-08-07 | Automobile and driving axle integrated with planetary gear reduction mechanism thereof |
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| Country | Link |
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| CN (1) | CN210234568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910896A (en) * | 2020-07-09 | 2022-01-11 | 浙江盘毂动力科技有限公司 | Integrated wheel-side driving device |
-
2019
- 2019-08-07 CN CN201921275943.XU patent/CN210234568U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910896A (en) * | 2020-07-09 | 2022-01-11 | 浙江盘毂动力科技有限公司 | Integrated wheel-side driving device |
| CN113910896B (en) * | 2020-07-09 | 2024-04-19 | 浙江盘毂动力科技有限公司 | Integrated wheel driving device |
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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: 20211228 Address after: 201615 Room 401, building 21, 1158 Central Road, Jiuting Town, Songjiang District, Shanghai Patentee after: Shanghai Panhu Power Technology Co.,Ltd. Address before: No.23 Road, Jiangnan Park, Lanxi Economic Development Zone, Jinhua City, Zhejiang Province Patentee before: Zhejiang Panhu Power Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |