CN220363175U - High-speed lightweight electric drive wheel-side transmission shaft assembly - Google Patents
High-speed lightweight electric drive wheel-side transmission shaft assembly Download PDFInfo
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- CN220363175U CN220363175U CN202321818047.XU CN202321818047U CN220363175U CN 220363175 U CN220363175 U CN 220363175U CN 202321818047 U CN202321818047 U CN 202321818047U CN 220363175 U CN220363175 U CN 220363175U
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- centering
- spline shaft
- fork
- ball
- shaft sleeve
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a high-speed light-weight electric drive wheel edge transmission shaft assembly which comprises a first bearing, a spline shaft sleeve, a sliding spline shaft and a second bearing which are sequentially connected, wherein the sliding spline shaft is inserted into the spline shaft sleeve and is in sliding connection with the spline shaft sleeve, the first bearing comprises a flange plate fork and a spline shaft sleeve fork, one end of the flange plate fork is provided with a first centering shaft, the spline shaft sleeve fork is fixedly connected with the spline shaft sleeve, one end of the spline shaft sleeve fork, which is far away from the spline shaft sleeve, is provided with a first ball socket, a first centering ball is arranged in the first ball socket, a first centering hole is formed in the first centering ball, and the first centering shaft is inserted into the first centering hole. When the utility model works to generate an angle, the working angle is divided into two angles which are approximately equal to the included angle of the ball axis, and then the angles are transmitted to universal joints with the same structure at the other end through universal joints at the two ends and spline pairs, so that the angular speeds of the input shaft and the output shaft are ensured to be approximately equal when the included angle between the two shafts is changed.
Description
Technical Field
The utility model relates to the technical field of automobile transmission devices, in particular to a high-speed lightweight electric drive wheel-side transmission shaft assembly.
Background
In a disconnected drive axle of a vehicle, a hub transmission shaft is used as a key component of a transmission system, is arranged between a central speed reducer and the hub speed reducer, transmits driving power output by the central speed reducer to a wheel set, and realizes real-time and stable power transmission through a universal joint and a sliding spline mechanism. The common automobile wheel transmission shaft adopts the ball cage structure type transmission shaft, and along with the development trend of automobile electric drive, the wheel transmission shaft also develops towards higher rotating speed, smaller working space, larger working angle and light weight trend, so that the research and development of the wheel transmission shaft meeting the high rotating speed and large-angle on-load work has certain promotion significance for the development of the electric automobile.
Disclosure of Invention
Aiming at the technical problems, the utility model aims at: the high-speed light-weight electric drive wheel-side transmission shaft assembly has the function of realizing high-rotation-speed and large-angle load work.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the high-speed light-weight electric drive wheel transmission shaft assembly comprises a first bearing, a spline shaft sleeve, a sliding spline shaft and a second bearing which are sequentially connected, wherein the sliding spline shaft is inserted into the spline shaft sleeve and is in sliding connection with the spline shaft sleeve, an outer sleeve is sleeved on the outer side of the spline shaft sleeve, and one end, close to the second bearing, of the outer sleeve is fixedly connected with the sliding spline shaft; the first bearing comprises a flange plate fork and a spline shaft sleeve fork, a first centering shaft is arranged at one end of the flange plate fork, the spline shaft sleeve fork is fixedly connected with a spline shaft sleeve, a first ball socket is arranged at one end, far away from the spline shaft sleeve, of the spline shaft sleeve fork, a first centering ball is arranged in the first ball socket, the first centering ball rotates in the first ball socket, a first centering hole is formed in the first centering ball, and the first centering shaft is inserted into the first centering hole.
Preferably, a protecting cover is sleeved on the outer side of the first centering ball, one end of the protecting cover is connected with the first centering shaft, and the other end of the protecting cover is connected with the first ball socket.
Preferably, the outer side of the first ball socket is provided with an annular first groove, the inner side of the protective cover is provided with a convex ring corresponding to the first groove, the outer side of the protective cover is provided with a second groove corresponding to the convex ring, and the protective cover is sleeved with a fixing ring embedded into the second groove.
Preferably, the second bearing comprises a spline shaft fork and a connecting part, the spline shaft fork is fixedly connected with the sliding spline shaft, a second centering shaft is arranged at one end of the spline shaft fork, a second ball socket is arranged at the outer side of the connecting part, a second centering ball is arranged in the second ball socket, the second centering ball rotates in the second ball socket, a second centering hole is formed in the second centering ball, and the second centering shaft is inserted into the second centering hole.
Preferably, a first cavity is arranged at one end of the flange plate fork, a first cross shaft is arranged in the first cavity, a second cavity is arranged on the spline shaft sleeve fork, and a second cross shaft is arranged in the second cavity.
Preferably, the flange plate fork is provided with a connecting hole penetrating through the first cavity, the axial lead of the connecting hole is mutually perpendicular to the axial lead of the first fixed mandrel, the end part of the first cross shaft is provided with a needle bearing, and the outer ring of the needle bearing is fixedly connected with the connecting hole.
Preferably, the outer sides of the flange plate fork and the spline shaft sleeve fork are provided with connecting sleeves, two pairs of through holes are arranged on the connecting sleeves, and the two pairs of through holes are respectively connected with the first cross shaft and the second cross shaft.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the high-speed lightweight electric drive wheel side transmission shaft assembly comprises a first bearing, a spline shaft sleeve, a sliding spline shaft and a second bearing which are sequentially connected, wherein the sliding spline shaft is inserted into the spline shaft sleeve and is in sliding connection with the spline shaft sleeve, so that the working length can be adjusted in a follow-up manner when a wheel jumps; the first bearing comprises a flange plate fork and a spline shaft sleeve fork, one end of the flange plate fork is provided with a first centering shaft, the spline shaft sleeve fork is fixedly connected with the spline shaft sleeve, one end of the spline shaft sleeve fork, which is far away from the spline shaft sleeve, is provided with a first ball socket, a first centering ball is arranged in the first ball socket and rotates in the first ball socket, a first centering hole is formed in the first centering ball, the first centering shaft is inserted into the first centering hole, the flange plate fork and the spline shaft sleeve fork can rotate relatively, the structure of the second bearing is approximate to the first bearing, the input and output angular speeds are guaranteed to be approximately equal, and the functions of high rotating speed, small rotation diameter and large working angle are realized.
Drawings
The technical scheme of the utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a half cross-sectional view of a high-speed lightweight electric drive wheel drive shaft assembly of the present utility model;
fig. 2 is a partial enlarged view at a of fig. 1.
Wherein: 1. a first bearing; 11. a flange fork; 111. a first centering shaft; 12. a spline shaft sleeve fork; 14. a first ball socket; 141. a first groove; 15. a first centering ball; 16. a protective cover; 161. a convex ring; 17. a fixing ring; 2. a spline shaft sleeve; 3. sliding spline shaft; 4. a second bearing; 41. spline shaft fork; 411. a second centering shaft; 42. a connection part; 44. a second ball socket; 45. a second centering ball; 5. an outer sleeve; 6. a first cross; 7. a twenty-first axis; 8. connecting sleeves; 9. clamping springs; 10. an oil cup.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
The utility model discloses a high-speed lightweight electric drive wheel side transmission shaft assembly, which is shown in the accompanying drawings 1 and 2 and comprises a first bearing 1, a spline shaft sleeve 2, a sliding spline shaft 3 and a second bearing 4 which are sequentially connected, wherein the sliding spline shaft 3 is inserted into the spline shaft sleeve 2 and is in sliding connection with the spline shaft sleeve 2, an outer sleeve 5 is sleeved outside the spline shaft sleeve 2, one end, close to the second bearing 4, of the outer sleeve 5 is fixedly connected with the sliding spline shaft 3, and an oil cup 10 is arranged on the outer sleeve 5, so that oil is conveniently injected, sliding is smoother, and sealing conditions are improved.
The first bearing 1 comprises a flange plate fork 11 and a spline shaft sleeve fork 12, one end of the flange plate fork 11 is provided with a first centering shaft 111, the spline shaft sleeve fork 12 is fixedly connected with the spline shaft sleeve 2, one end of the spline shaft sleeve fork 12, far away from the spline shaft sleeve 2, is provided with a first ball socket 14, a first centering ball 15 is arranged in the first ball socket 14, the first centering ball 15 freely rotates in the first ball socket 14, a first centering hole is formed in the first centering ball 15, and the first centering shaft 111 is inserted into the first centering hole, so that the flange plate fork 11 and the spline shaft sleeve fork 12 can relatively rotate. The protection cover 16 is installed on the outer side of the first positioning ball 15, one end of the protection cover 16 is connected with the first positioning shaft 111, the other end of the protection cover 16 is connected with the first ball socket 14, the protection cover 16 is made of elastic materials, and is convenient to bend along with rotation of the flange plate fork 11 and the spline shaft sleeve fork 12, so that the internal structure is better protected, and impurities such as dust are prevented from entering. The outer side of the first ball socket 14 is provided with an annular first groove 141, the inner side of the protective cover 16 is provided with a convex ring 161 corresponding to the first groove 141, the outer side of the protective cover 16 is provided with a second groove corresponding to the convex ring 161, the protective cover 16 is sleeved with a fixing ring 17 embedded in the second groove, and when in installation, the convex ring 161 of the protective cover 16 is arranged in the first groove 141 of the first ball socket 14 and is clamped by the fixing ring 17 embedded in the second groove, so that the protective cover 16 is more reliably and firmly installed on the first ball socket 14.
The second bearing 4 includes a spline shaft fork 41 and a connecting portion 42, the spline shaft fork 41 is fixedly connected with the sliding spline shaft 3, one end of the spline shaft fork 41 is provided with a second centering shaft 411, a second ball socket 44 is mounted on the outer side of the connecting portion 42, a second centering ball 45 is mounted in the second ball socket 44, the second centering ball 45 rotates in the second ball socket 44, a second centering hole is formed in the second centering ball 45, and the second centering shaft 411 is inserted into the second centering hole, so that the spline shaft fork 41 and the connecting portion 42 can rotate relatively.
One end of the flange fork 11 is provided with a first cavity, a first cross shaft 6 is arranged in the first cavity, a second cavity is formed on the spline shaft sleeve fork 12, and a second cross shaft 7 is arranged in the second cavity. The flange fork 11 is provided with a connecting hole penetrating through the first cavity, the axial lead of the connecting hole is mutually perpendicular to the axial lead of the first fixed mandrel 111, the end part of the first cross shaft 6 is provided with a needle bearing, the outer ring of the needle bearing is fixedly connected with the connecting hole, and the needle bearing is positioned and installed by using the clamp spring 9. The outer sides of the flange plate fork 11 and the spline shaft sleeve fork 12 are provided with a connecting sleeve 8, two pairs of through holes are processed on the connecting sleeve 8, and the two pairs of through holes are respectively connected with the first cross shaft 6 and the second cross shaft 7.
According to the utility model, the two ends of the high-speed lightweight electric drive wheel-side transmission shaft assembly respectively adopt a universal joint structure with a centering mechanism, the sliding spline is used in the middle to realize the follow-up adjustment of the working length of the wheel-side transmission shaft assembly when the wheel jumps, when the transmission shaft assembly works to generate an angle, the working angle is divided into two angles approximately equal to the included angle of a ball axis, and then the angles are transmitted to universal joints with the same structure at the other end through universal joints and spline pairs at the two ends, so that the angular speeds of the input and output shafts of the universal joints are still approximately equal when the included angle between the two shafts is changed, and the functions of high rotating speed, small rotation diameter and large working angle are realized.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (7)
1. A high-speed lightweight electric drive wheel limit transmission shaft assembly which characterized in that: the sliding spline shaft is inserted into the spline shaft sleeve and is in sliding connection with the spline shaft sleeve, an outer sleeve is sleeved on the outer side of the spline shaft sleeve, and one end, close to the second bearing, of the outer sleeve is fixedly connected with the sliding spline shaft; the first bearing comprises a flange plate fork and a spline shaft sleeve fork, a first centering shaft is arranged at one end of the flange plate fork, the spline shaft sleeve fork is fixedly connected with a spline shaft sleeve, a first ball socket is arranged at one end, far away from the spline shaft sleeve, of the spline shaft sleeve fork, a first centering ball is arranged in the first ball socket, the first centering ball rotates in the first ball socket, a first centering hole is formed in the first centering ball, and the first centering shaft is inserted into the first centering hole.
2. The high-speed lightweight electric drive wheel drive shaft assembly of claim 1, wherein: the outside cover of first centering ball is equipped with the safety cover, safety cover one end links to each other with first centering axle, and the other end links to each other with first ball socket.
3. The high-speed lightweight electric drive wheel drive shaft assembly of claim 2, wherein: the outer side of the first ball socket is provided with an annular first groove, the inner side of the protective cover is provided with a convex ring corresponding to the first groove, the outer side of the protective cover is provided with a second groove corresponding to the convex ring, and the protective cover is sleeved with a fixing ring embedded into the second groove.
4. The high-speed lightweight electric drive wheel drive shaft assembly of claim 1, wherein: the second bearing comprises a spline shaft fork and a connecting part, the spline shaft fork is fixedly connected with a sliding spline shaft, a second centering shaft is arranged at one end of the spline shaft fork, a second ball socket is arranged on the outer side of the connecting part, a second centering ball is arranged in the second ball socket, the second centering ball rotates in the second ball socket, a second centering hole is formed in the second centering ball, and the second centering shaft is inserted into the second centering hole.
5. The high-speed lightweight electric drive wheel drive shaft assembly of claim 1, wherein: one end of the flange plate fork is provided with a first cavity, a first cross shaft is arranged in the first cavity, a second cavity is arranged on the spline shaft sleeve fork, and a second cross shaft is arranged in the second cavity.
6. The high-speed lightweight electric drive wheel drive shaft assembly of claim 5, wherein: the flange plate fork is provided with a connecting hole penetrating through the first cavity, the axial lead of the connecting hole is mutually perpendicular to the axial lead of the first fixed mandrel, the end part of the first cross shaft is provided with a needle bearing, and the outer ring of the needle bearing is fixedly connected with the connecting hole.
7. The high-speed lightweight electric drive wheel drive shaft assembly of claim 6, wherein: the flange plate fork and the spline shaft sleeve fork are provided with connecting sleeves on the outer sides, two pairs of through holes are formed in the connecting sleeves, and the two pairs of through holes are respectively connected with the first cross shaft and the second cross shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321818047.XU CN220363175U (en) | 2023-07-12 | 2023-07-12 | High-speed lightweight electric drive wheel-side transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321818047.XU CN220363175U (en) | 2023-07-12 | 2023-07-12 | High-speed lightweight electric drive wheel-side transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220363175U true CN220363175U (en) | 2024-01-19 |
Family
ID=89517758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321818047.XU Active CN220363175U (en) | 2023-07-12 | 2023-07-12 | High-speed lightweight electric drive wheel-side transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220363175U (en) |
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2023
- 2023-07-12 CN CN202321818047.XU patent/CN220363175U/en active Active
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