CN216589876U - Electromechanical coupling transmission input shaft and transmission with same - Google Patents
Electromechanical coupling transmission input shaft and transmission with same Download PDFInfo
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- CN216589876U CN216589876U CN202122718926.2U CN202122718926U CN216589876U CN 216589876 U CN216589876 U CN 216589876U CN 202122718926 U CN202122718926 U CN 202122718926U CN 216589876 U CN216589876 U CN 216589876U
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- electromechanical coupling
- lubricating oil
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Abstract
The input shaft of the electromechanical coupling transmission is internally provided with a high-pressure oil way, a first lubricating oil way and a second lubricating oil way which extend along the axis direction of the input shaft, the axes of the high-pressure oil way, the first lubricating oil way and the second lubricating oil way are distributed on the same circle which takes the axis of the input shaft of the electromechanical coupling transmission as the circle center when seen from the end face of the input shaft of the electromechanical coupling transmission, and the axes of the high-pressure oil way, the first lubricating oil way and the second lubricating oil way are uniformly distributed along the circumference of the circle. The electromechanical coupling transmission input shaft is more compact in layout, simpler in structure, better in strength and rigidity and more economical in cost.
Description
Technical Field
The utility model relates to the technical field of automobile transmissions, in particular to an electromechanical coupling transmission input shaft and a transmission with the electromechanical coupling transmission input shaft.
Background
In recent years, due to the requirements of energy conservation and environmental protection, the technology of new energy automobiles is rapidly developed, and the electromechanical coupling transmission takes the advantages of electric automobiles and traditional transmissions into consideration, so that the electromechanical coupling transmission is more and more favored by automobile enterprises and research institutions at home and abroad, and the research and development of the electromechanical coupling transmission become a hot spot.
The electromechanical coupling transmission comprises a plurality of power sources such as an engine and a motor. The input shaft assembly of the electromechanical coupling transmission comprises mechanisms such as a clutch, an input shaft and a planetary row, different transmission paths of various types of power flow are provided, the space layout is compact, and the number of parts is large. The input shaft assembly bears the torque and the rotating speed transmitted by the engine end, and the switching of multiple working modes is realized through structures such as a clutch, a brake, a planetary row and the like. In order to ensure performance parameters such as smoothness, transmission efficiency and service life of system operation, the input shaft assembly needs to provide a control oil path for the operation of the clutch and provide a lubricating oil path for the planet row, the bearing, the clutch, the brake and the like. Therefore, the input shaft needs to be ensured to have better strength and rigidity, and the distribution of the control oil passages and the lubricating oil passages on the input shaft needs to be well designed.
In an input shaft assembly of an electromechanical coupling transmission of a certain model, a special high-pressure control oil way is required to work in cooperation with a clutch, and the control oil way of the clutch has higher requirements on oil mass and oil pressure, so that a special high-pressure control inner oil pipe is required to be added. And in the assembling process of the high-pressure control inner oil pipe, better machining precision is required to ensure positioning. In addition, since parts such as the clutch, the needle bearing, and the planetary row need lubricating oil, a lubricating oil passage needs to be added. Increasing the high-pressure control inner oil pipe and the lubricating oil way increases the number of parts, increases the cost and improves the installation difficulty, and is not favorable for compact space layout and batch production.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an input shaft of an electromechanical coupling transmission and a transmission with the input shaft, wherein the input shaft of the electromechanical coupling transmission is more compact in layout, simpler in structure, better in strength and rigidity and more economical in cost.
The utility model provides an electromechanical coupling transmission input shaft which comprises an electromechanical coupling transmission input shaft body and a high-pressure oil plug. The electromechanical coupling transmission input shaft is internally provided with a high-pressure oil way, a first lubricating oil way and a second lubricating oil way which extend along the axis direction of the electromechanical coupling transmission input shaft, the axes of the high-pressure oil way, the first lubricating oil way and the second lubricating oil way are distributed on the same circle which takes the axis of the electromechanical coupling transmission input shaft as the circle center, and the axes of the high-pressure oil way, the first lubricating oil way and the second lubricating oil way are uniformly distributed along the circumference of the circle.
Furthermore, a high-pressure oil inlet and a high-pressure oil outlet are formed in the high-pressure oil path, and the high-pressure oil inlet and the high-pressure oil outlet are formed in the side face of the input shaft of the electromechanical coupling transmission, extend from the side face of the input shaft of the electromechanical coupling transmission along the axial direction perpendicular to the input shaft of the electromechanical coupling transmission, and are communicated with the high-pressure oil path.
Furthermore, a fabrication hole for manufacturing the high-pressure oil way is formed on the end surface of the input shaft of the electromechanical coupling transmission, and a high-pressure oil plug is arranged in the fabrication hole.
Furthermore, two first annular grooves and two second annular grooves are formed in the side face of the input shaft of the electromechanical coupling transmission, the first annular grooves are arranged along the axial direction of the input shaft of the electromechanical coupling transmission at intervals, the second annular grooves are arranged along the axial direction of the input shaft of the electromechanical coupling transmission at intervals, high-pressure oil outlets are arranged between the two first annular grooves, and high-pressure oil inlets are arranged between the two second annular grooves.
Furthermore, the two first annular grooves are provided with O-shaped sealing rings, and the two second annular grooves are provided with dynamic sealing rings.
Furthermore, a first lubricating oil inlet, a first lubricating oil radial outlet and a first lubricating oil axial outlet are formed on the first lubricating oil path, the first lubricating oil inlet is arranged on the end surface of the input shaft of the electromechanical coupling transmission and is communicated with the first lubricating oil path, the first lubricating oil radial outlet is formed on the side surface of the input shaft of the electromechanical coupling transmission, extends from the side surface of the electromechanical coupling transmission along the direction vertical to the axial direction of the input shaft of the electromechanical coupling transmission and is communicated with the first lubricating oil path, the first lubricating oil axial oil outlet is arranged on the end surface of one end of the input shaft of the electromechanical coupling transmission far away from the first lubricating oil inlet, and the axial direction of the input shaft of the electromechanical coupling transmission extends to one end where the first lubricating oil inlet is located, and the axial oil outlet of the first lubricating oil is communicated with the first lubricating oil way through a communicating channel.
Further, the second lubricating oil path comprises a second lubricating oil inlet and a second lubricating oil outlet, the second lubricating oil inlet is formed in the end face of the input shaft of the electromechanical coupling transmission and is communicated with the second lubricating oil path, and the second lubricating oil outlet is formed in the side face of the input shaft of the electromechanical coupling transmission and extends from the side face of the electromechanical coupling transmission along the direction perpendicular to the axis of the input shaft of the electromechanical coupling transmission and is communicated with the second lubricating oil path.
Furthermore, the number of the second lubricating oil outlets is multiple, and the multiple second lubricating oil outlets are arranged at intervals along the axial direction of the input shaft of the electromechanical coupling transmission.
Furthermore, a first spline and a second spline which are respectively used for being combined with the clutch and the gear are arranged on the side surface of the input shaft of the electromechanical coupling transmission.
The utility model also provides a transmission comprising the electromechanical coupling transmission input shaft.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the high-pressure oil path, the first lubricating oil path and the second lubricating oil path are integrated on the input shaft of the electromechanical coupling transmission, so that high-pressure control oil can be provided for equipment such as a clutch through the high-pressure oil path, and lubricating oil can be provided for peripheral components such as the clutch, a needle bearing, a brake and a planet row through the first lubricating oil path and the second lubricating oil path. Through the arrangement of the three oil ways (the high-pressure oil way, the first lubricating oil way and the second lubricating oil way), the normal work of the clutch can be effectively guaranteed, meanwhile, the lubricating and cooling oil quantity supply of the input assembly is also guaranteed, the input shaft of the electromechanical coupling transmission is more compact in layout, simpler in structure, better in strength and rigidity, and more economical in cost due to the fact that a plurality of oil injection pipes and other peripheral parts are reduced.
Drawings
FIG. 1 is a schematic end view of an input shaft of an electro-mechanically coupled transmission in accordance with an example of the present invention.
FIG. 2 is a cross-sectional schematic view of the electro-mechanically coupled transmission input shaft taken from perspective A-A of FIG. 1.
FIG. 3 is a schematic cross-sectional view of the input shaft of the electro-mechanically coupled transmission of FIG. 1 taken along the line B-B.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The specific embodiments described herein are merely illustrative of the utility model and are not to be construed as limiting the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model aims to provide an input shaft of an electromechanical coupling transmission and a transmission with the input shaft, wherein the input shaft of the electromechanical coupling transmission is more compact in layout, simpler in structure, better in strength and rigidity and more economical in cost.
As shown in fig. 1 to 3, an embodiment of the present invention provides an input shaft 10 of an electromechanical coupling transmission, a high-pressure oil path 11, a first lubricating oil path 12, and a second lubricating oil path 13 are formed in the input shaft 10 of the electromechanical coupling transmission along a direction parallel to an axis of the input shaft 10, as shown in fig. 1, when viewed from an end face of the input shaft 10 of the electromechanical coupling transmission, axes of the high-pressure oil path 11, the first lubricating oil path 12, and the second lubricating oil path 13 are distributed on a same circle with the axis of the input shaft 10 of the electromechanical coupling transmission as a center of the circle, and axes of the high-pressure oil path 11, the first lubricating oil path 12, and the second lubricating oil path 13 are uniformly distributed along a circumferential direction of the circle.
In the utility model, the high-pressure oil path 11, the first lubricating oil path 12 and the second lubricating oil path 13 are integrated on the input shaft 10 of the electromechanical coupling transmission, high-pressure control oil can be provided for equipment such as a clutch (not shown) through the high-pressure oil path 11, lubricating oil can be provided for different equipment through the first lubricating oil path 12 and the second lubricating oil path 13 respectively, and the oil supply for lubricating and cooling an input assembly can be ensured while the normal work of the clutch (not shown) can be effectively ensured through the arrangement of the three oil paths, so that the input shaft 10 of the electromechanical coupling transmission has the advantages of more compact layout, simpler structure, better strength and rigidity, reduction of a plurality of oil injection pipes and other peripheral parts, and more economic cost.
Further, a high-pressure oil inlet 111 and a high-pressure oil outlet 112 are formed in the high-pressure oil path 11, and the high-pressure oil inlet 111 and the high-pressure oil outlet 112 are formed in a side surface of the electromechanical coupling transmission input shaft 10, extend from the side surface of the electromechanical coupling transmission input shaft 10 in a direction perpendicular to an axial direction of the electromechanical coupling input shaft 10, and communicate with the high-pressure oil path 11. That is, high-pressure oil enters the high-pressure oil passage 11 from a high-pressure oil inlet 111 on the side of the electromechanical coupling transmission input shaft 10 and then flows out from a high-pressure oil outlet 112 to supply high-pressure control oil to a clutch (not shown). An fabrication hole 14 for manufacturing a high-pressure oil path is further formed on the end surface of the input shaft 10 of the electromechanical coupling transmission, and a high-pressure oil plug 20, such as a tension plug, is embedded in the fabrication hole 14. The expansion type plug is embedded into the inner wall of the process hole 14 of the input shaft through the outward expansion thread groove, and oil sealing is achieved.
In order to ensure the sealing performance of the high-pressure oil inlet 111 and the high-pressure oil outlet 112 when high-pressure control oil enters and exits, two first annular grooves 15 and two second annular grooves 16 are further formed on the side surface of the input shaft 10 of the electromechanical coupling transmission, the two first annular grooves 15 are arranged at intervals along the axial direction of the input shaft 10 of the electromechanical coupling transmission, the two second annular grooves 16 are arranged at intervals along the axial direction of the input shaft 10 of the electromechanical coupling transmission, the high-pressure oil outlet 112 is arranged between the two first annular grooves 15, and the high-pressure oil inlet 111 is arranged between the two second annular grooves 16. The structure of the input shaft 10 of the electromechanical coupling transmission integrates the high-pressure oil path 11, the first lubricating oil path 12 and the second lubricating oil path 13 into the existing input shaft, and the high-pressure oil enters the high-pressure oil path 11 arranged inside the input shaft through the high-pressure oil path oil inlet 112 and then flows out of the high-pressure oil path oil outlet 111, so that the hydraulic control of a clutch (not shown) is realized. Because the input shaft at the high-pressure oil inlet 112 moves relative to the adjacent housing, the input shaft at the high-pressure oil outlet 111 keeps stationary relative to the clutch (not shown in the figure), and the high-pressure oil inlet 112 has a higher requirement on the performance of the sealing ring, and the high-pressure oil outlet 111 has a higher requirement on the performance of the sealing ring, an O-shaped sealing ring (not shown in the figure) is used at the high-pressure oil inlet 112, and a dynamic sealing ring (not shown in the figure) is used at the high-pressure oil outlet 111.
Further, a first lubricating oil inlet 121, a first lubricating oil radial outlet 122 and a first lubricating oil axial outlet 123 are formed on the first lubricating oil path 12. The first lubricating oil radial oil inlet 122 is opened on the end face of the input shaft 10 of the electromechanical coupling transmission and is communicated with the first lubricating oil path 12. A first lubricating oil radial outlet port 122 is formed on a side face of the electromechanical coupling transmission input shaft 10, and extends from the side face of the electromechanical coupling transmission input shaft 10 in a direction perpendicular to the axial direction of the electromechanical coupling transmission input shaft 10 and communicates with the first lubricating oil passage 12. The first lubricating oil axial oil outlet 123 is arranged on an end face of the end, away from the first lubricating oil radial oil inlet 122, of the input shaft 10 of the electromechanical coupling transmission, and extends towards the end, where the first lubricating oil radial oil inlet 122 is located, of the input shaft 10 of the electromechanical coupling transmission along the axial direction of the input shaft 10 of the electromechanical coupling transmission, and the first lubricating oil axial oil outlet 123 is communicated with the first lubricating oil path 12 through a communication channel. Preferably, the axis of the first lubricant axial outlet port 123 is collinear with the axis of the electromechanically coupled transmission input shaft 10.
The second lubricating oil path 13 includes a second lubricating oil inlet 131 and a second lubricating oil outlet 132, the second lubricating oil inlet 131 is formed on the end face of the electromechanical coupling transmission input shaft 10 and is communicated with the second lubricating oil path 13, and the second lubricating oil outlet 132 is formed on the side face of the electromechanical coupling transmission input shaft 10 and extends from the side face of the electromechanical coupling transmission 10 in the direction perpendicular to the axial direction of the electromechanical coupling input shaft 10 and is communicated with the second lubricating oil path 13. In the present embodiment, there may be a plurality of, for example, four second lubricant outlets 132, and the plurality of second lubricant outlets 132 are arranged at intervals along the axial direction of the electromechanically coupled transmission input shaft 10.
Further, in the present embodiment, a first spline 17 and a second spline 18, which are respectively coupled with a clutch (not shown) and a gear, are further provided on the side surface of the electromechanically coupled transmission input shaft 10. The electromechanical coupling transmission input shaft 10 and a clutch (not shown) are connected through the first spline 17 to form a power input end, the electromechanical coupling transmission input shaft 10 outputs power to a gear through the second spline 18, and the first spline 17 and the second spline 18 transmit the rotating speed and the torque from the engine. A mounting groove 19 for mounting a needle bearing (not shown) is also provided on the side of the electromechanically coupled transmission input shaft 10.
In summary, by integrating the high-pressure oil passage 11, the first lubricating oil passage 12 and the second lubricating oil passage 13 on the input shaft 10 of the electro-mechanical coupling transmission, high-pressure control oil can be supplied to devices such as a clutch (not shown) through the high-pressure oil passage 11, and lubricating oil can be supplied to peripheral components (not shown) such as a clutch (not shown), a needle bearing (not shown), a brake (not shown) and a planetary gear through the first lubricating oil passage 12 and the second lubricating oil passage 13. Through the arrangement of the three oil paths (the high-pressure oil path 11, the first lubricating oil path 12 and the second lubricating oil path 13), the normal work of a clutch (not shown) can be effectively guaranteed, meanwhile, the lubricating and cooling oil supply of an input assembly is also guaranteed, the input shaft 10 of the electromechanical coupling transmission is more compact in layout, simpler in structure, better in strength and rigidity, and more economical in cost, and a plurality of oil injection pipes and other peripheral parts are reduced.
The present invention also provides a transmission comprising the above-mentioned electromechanically coupled transmission input shaft 10, and for other technical features of the transmission, reference is made to the prior art and no further details are given here.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An input shaft of an electromechanical coupling transmission is characterized in that a high-pressure oil path, a first lubricating oil path and a second lubricating oil path which extend along the axis direction of the input shaft of the electromechanical coupling transmission are formed in the input shaft of the electromechanical coupling transmission, the axes of the high-pressure oil path, the first lubricating oil path and the second lubricating oil path are distributed on the same circle which takes the axis of the input shaft of the electromechanical coupling transmission as the circle center when viewed from the end face of the input shaft of the electromechanical coupling transmission, and the axes of the high-pressure oil path, the first lubricating oil path and the second lubricating oil path are uniformly distributed along the circumferential direction of the circle.
2. The input shaft of the electromechanical coupling transmission according to claim 1, wherein a high-pressure oil inlet and a high-pressure oil outlet are formed in the high-pressure oil path, and the high-pressure oil inlet and the high-pressure oil outlet are formed in a side surface of the input shaft of the electromechanical coupling transmission, extend from the side surface of the input shaft of the electromechanical coupling transmission in a direction perpendicular to an axis of the input shaft of the electromechanical coupling transmission, and communicate with the high-pressure oil path.
3. The input shaft of the electromechanical coupling transmission according to claim 2, wherein a fabrication hole for manufacturing the high-pressure oil path is formed in an end face of the input shaft of the electromechanical coupling transmission, and a high-pressure oil plug is arranged in the fabrication hole.
4. The input shaft of the electromechanical coupling transmission according to claim 2, wherein two first annular grooves and two second annular grooves are formed on a side surface of the input shaft of the electromechanical coupling transmission, the two first annular grooves are axially spaced along the input shaft of the electromechanical coupling transmission, the two second annular grooves are axially spaced along the input shaft of the electromechanical coupling transmission, the high pressure oil outlet is disposed between the two first annular grooves, and the high pressure oil inlet is disposed between the two second annular grooves.
5. An electro-mechanically coupled transmission input shaft according to claim 4, wherein O-ring seals are provided in both of said first annular grooves and dynamic seal rings are provided in both of said second annular grooves.
6. The input shaft of the electromechanical coupling transmission according to claim 1, wherein a first lubricating oil inlet, a first lubricating oil radial outlet, and a first lubricating oil axial outlet are formed in the first lubricating oil passage, the first lubricating oil inlet is opened in an end surface of the input shaft of the electromechanical coupling transmission and communicates with the first lubricating oil passage, the first lubricating oil radial outlet is formed in a side surface of the input shaft of the electromechanical coupling transmission and extends from the side surface of the electromechanical coupling transmission in a direction perpendicular to an axial direction of the input shaft of the electromechanical coupling transmission and communicates with the first lubricating oil passage, the first lubricating oil axial outlet is opened in an end surface of the input shaft of the electromechanical coupling transmission at an end thereof remote from the first lubricating oil inlet and extends in the axial direction of the input shaft of the electromechanical coupling transmission toward an end thereof where the first lubricating oil inlet is located, the first lubricating oil axial oil outlet is communicated with the first lubricating oil way through a communication channel.
7. The electromechanically coupled transmission input shaft of claim 6, wherein the second lubrication oil path comprises a second lubrication oil inlet formed in an end face of the electromechanically coupled transmission input shaft and in communication with the second lubrication oil path, and a second lubrication oil outlet formed in a side face of the electromechanically coupled transmission input shaft and extending from the side face of the electromechanically coupled transmission in a direction perpendicular to an axis of the electromechanically coupled transmission input shaft and in communication with the second lubrication oil path.
8. The electromechanically coupled transmission input shaft of claim 7, wherein there are multiple second lubricant outlets arranged at intervals along the axis of the electromechanically coupled transmission input shaft.
9. An electro-mechanically coupled transmission input shaft according to claim 1, further provided with first and second splines on a side of the electro-mechanically coupled transmission input shaft for engagement with a clutch and a gear, respectively.
10. A transmission comprising an electromechanically coupled transmission input shaft according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122718926.2U CN216589876U (en) | 2021-11-04 | 2021-11-04 | Electromechanical coupling transmission input shaft and transmission with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122718926.2U CN216589876U (en) | 2021-11-04 | 2021-11-04 | Electromechanical coupling transmission input shaft and transmission with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589876U true CN216589876U (en) | 2022-05-24 |
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ID=81643709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122718926.2U Active CN216589876U (en) | 2021-11-04 | 2021-11-04 | Electromechanical coupling transmission input shaft and transmission with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589876U (en) |
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2021
- 2021-11-04 CN CN202122718926.2U patent/CN216589876U/en active Active
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