CN212744954U - Input interface device of automobile transmission clutch - Google Patents
Input interface device of automobile transmission clutch Download PDFInfo
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- CN212744954U CN212744954U CN202021333856.8U CN202021333856U CN212744954U CN 212744954 U CN212744954 U CN 212744954U CN 202021333856 U CN202021333856 U CN 202021333856U CN 212744954 U CN212744954 U CN 212744954U
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Abstract
The application discloses automotive transmission clutch input interface device includes: the clutch rotating hub, the input rotating hub, the thrust bearing, the first support bearing and the second support bearing are arranged on the first support bearing; the thrust bearing is arranged on the clutch rotating hub; the clutch rotating hub is connected with the input rotating hub through a thrust bearing; the first support bearing is arranged in the input rotating hub and is used for supporting and connecting the input shaft of the transmission; the second supporting bearing is arranged on a shaft shoulder of the input rotating hub and used for supporting and connecting the sealing cover; the input rotating hub is provided with an external spline matched with an output shaft of the driving motor, and the input rotating hub is also provided with a sealing groove at the tail end of the external spline; and a sealing ring connected with the output shaft of the driving motor is embedded in the sealing groove. The performance requirements on the input interface device can be better met, so that the high-performance requirements of people on an automobile transmission system can be better met.
Description
Technical Field
The application relates to the technical field of automobile transmission systems, in particular to an input interface device of an automobile transmission clutch.
Background
With the increasing maturity and development of automobile technology, people have higher and higher requirements on the performance of automobile transmission systems. Taking a pure electric vehicle which is rapidly developed in the recent years as an example, under the condition that the performance of a driving motor is certain, in order to further improve the torque of the driving wheel, meet the power performance requirement of the pure electric vehicle and adjust the relationship between the rotating speed of the motor and the vehicle speed, the application of the variable speed transmission device is particularly important. In order to give full play to the advantages of the pure electric vehicle and simultaneously reduce the requirements on the driving motor and the battery, the electric driving system of the pure electric vehicle is gradually developed towards the multi-gear transmission, and the driving motor can work in a more ideal high-efficiency area by operating the multi-gear transmission, so that the dynamic property, the economical efficiency and the like of the whole vehicle are improved. Taking the two-gear transmission as an example, the two-gear transmission has the advantages of simpler and more compact structure, high power density, capability of realizing power gear shifting, relatively mature technology, lower requirement on a motor, lower comprehensive cost of an electric drive system, higher transmission efficiency guarantee, higher possibility of large-scale popularization and application in the field of pure electric vehicles, higher industrialization and marketization, and higher feasibility. As one of the important components of a two speed transmission, its input interface device plays a significant role in the transmission system. Therefore, it is desirable to provide an input interface device that better meets performance requirements to better meet the high performance requirements of automotive transmissions.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present application is to provide an input interface device of a clutch of an automobile transmission, which can better meet the performance requirement of the input interface device, so as to better meet the high performance requirement of people on an automobile transmission system.
To achieve the above technical object, the present application provides an input interface device of a clutch for a transmission of an automobile, comprising: the clutch rotating hub, the input rotating hub, the thrust bearing, the first support bearing and the second support bearing are arranged on the first support bearing;
the thrust bearing is arranged on the clutch rotating hub;
the clutch rotating hub is connected with the input rotating hub through the thrust bearing;
the first support bearing is arranged in the input rotating hub and is used for supporting and connecting an input shaft of a transmission;
the second support bearing is arranged on a shaft shoulder of the input rotating hub and is used for supporting and connecting the sealing cover;
the input rotating hub is provided with an external spline matched with an output shaft of the driving motor, and the input rotating hub is also provided with a sealing groove at the tail end of the external spline;
and a sealing ring connected with the output shaft of the driving motor is embedded in the sealing groove.
Further, the first support bearing is located within an end of the input hub proximate the clutch hub;
and a rotating hub snap spring is arranged in the input rotating hub and used for axially positioning the first supporting bearing.
Further, the external splines are involute splines.
Further, the sealing ring is specifically an O-shaped ring.
Further, the surface roughness of the shaft section for mounting the oil seal cover on the input rotary hub is less than Ra0.4.
Furthermore, a lubricating oil hole communicated with the mounting cavity of the first support bearing is formed in the input rotary hub.
Further, the first support bearing is specifically a deep groove ball bearing, and is in interference fit with the input rotating hub.
Further, the second support bearing is specifically a deep groove ball bearing, and is in interference fit with the input rotating hub.
According to the technical scheme, the input interface device has the advantages that the clutch rotating hub is stably connected with the input rotating hub through the thrust bearing, the input rotating hub is stably connected with the input shaft of the transmission through the first supporting bearing, the input rotating hub is stably connected with the sealing cover of the clutch through the second supporting bearing, and stable transmission connection between the clutch and the speed reducer is achieved. In addition, the input rotating hub is provided with an external spline, and the external spline is in transmission connection with the output shaft of the driving motor, so that the connection and the assembly are convenient. Furthermore, set up the seal groove on the input changes the hub, set up the sealing washer with driving motor output shaft sealing connection on the seal groove, can prevent that the external impurity from getting into the external spline mating surface of driving motor output shaft and input commentaries on classics hub and causing wearing and tearing after the assembly, influence the transmission connection stability between input commentaries on classics hub and the driving motor output shaft. The whole body can better meet the performance requirement on the input interface device so as to better meet the high performance requirement of people on the automobile transmission system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic partial structural view of an input interface device of an automotive transmission clutch provided herein in engagement with an output shaft of a drive motor;
FIG. 2 is a schematic overall structure diagram of an input interface device of an automobile transmission clutch applied to a first dual clutch of a two-speed transmission of a pure electric automobile, provided by the application;
FIG. 3 is a schematic structural diagram of an input interface device of an automobile transmission clutch applied to a first dual clutch of a two-speed transmission of a pure electric vehicle, provided by the present application;
FIG. 4 is a schematic structural diagram of an input interface device of an automobile transmission clutch applied to a second dual clutch of a two-speed transmission of a pure electric automobile, provided by the application;
FIG. 5 is a schematic structural diagram of an input interface device of an automobile transmission clutch applied to a third pure electric automobile two-gear transmission double clutch provided in the present application;
in the figure: 1. a clutch hub; 2. a thrust bearing; 3. a hub clamp spring; 4. a first support bearing; 5. A second support bearing; 6. an input hub; 6A, a lubricating oil hole; 6B, a sealing groove; 6C, external splines; 7. A sealing cover; 8. sealing the oil cover; 9. a seal ring; 10. an output shaft of the drive motor; 11. a transmission input shaft; 12. a clutch drive plate.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. 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.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses an input interface device of an automobile transmission clutch.
Referring to fig. 1, an embodiment of an input interface device of a clutch of an automotive transmission provided in an embodiment of the present application includes:
the clutch hub 1, the input hub 6, the thrust bearing 2, the first support bearing 4 and the second support bearing 5; the thrust bearing 2 is arranged on the clutch rotating hub 1; the clutch rotating hub 1 is connected with the input rotating hub 6 through a thrust bearing 2; the first support bearing 4 is arranged in the input rotary hub 6 and is used for supporting and connecting the transmission input shaft 11; the second supporting bearing 5 is arranged on the shaft shoulder of the input rotary hub 6 and is used for supporting and connecting the sealing cover 7; an external spline 6C matched with an output shaft 10 of the input motor is arranged on the input rotary hub 6, and a sealing groove 6B is also arranged at the tail end of the external spline 6C on the input rotary hub 6; and a sealing ring 9 connected with an output shaft 10 of the driving motor is embedded in the sealing groove 6B.
Specifically, according to the input interface device provided by the application, the outer clutch hub 1 is connected with the input hub 6 through the thrust bearing 2, and the thrust bearing 2 can be used for limiting the relative axial positions of the clutch hub 1 and the input hub 6, so that the stable connection between the input hub 6 and the clutch hub 1 is realized; the input rotary hub 6 can be fixedly connected with the clutch driving disk 12 by welding when being assembled, and is not particularly limited. The first support bearing 4 is arranged to enable the input rotating hub 6 to be stably connected with the transmission input shaft 11, and the second support bearing 5 is arranged to enable the input rotating hub 6 to be stably connected with the sealing cover 7 of the clutch, so that stable transmission connection between the clutch and the speed reducer is achieved.
In addition, the input rotating hub 6 is provided with an external spline 6C, and is in transmission connection with the output shaft 10 of the driving motor through the external spline 6C, so that the connection and the assembly are convenient. Furthermore, a sealing groove 6B is formed in the input rotating hub 6, a sealing ring 9 which is connected with the output shaft 10 of the driving motor in a sealing mode is arranged on the sealing groove 6B, and therefore the situation that after assembly, external impurities enter the driving motor output shaft 10 and the meshing surface of the external spline 6C of the input rotating hub 6 to cause abrasion and influence the transmission connection stability between the input rotating hub 6 and the driving motor output shaft 10 can be prevented. The whole body can better meet the performance requirement on the input interface device so as to better meet the high performance requirement of people on the automobile transmission system.
The above is a first embodiment of an input interface device of an automobile transmission clutch provided in the embodiments of the present application, and the following is a second embodiment of an input interface device of an automobile transmission clutch provided in the embodiments of the present application, please refer to fig. 1 to 5 specifically.
An automotive transmission clutch input interface device, comprising: the clutch hub 1, the input hub 6, the thrust bearing 2, the first support bearing 4 and the second support bearing 5; the thrust bearing 2 is arranged on the clutch rotating hub 1; the clutch rotating hub 1 is connected with the input rotating hub 6 through a thrust bearing 2; the first support bearing 4 is arranged in the input rotary hub 6 and is used for supporting and connecting the transmission input shaft 11; the second supporting bearing 5 is arranged on the shaft shoulder of the input rotary hub 6 and is used for supporting and connecting the sealing cover 7; an external spline 6C matched with the output shaft 10 of the driving motor is arranged on the input rotary hub 6, and a sealing groove 6B is also arranged at the tail end of the external spline 6C on the input rotary hub 6; and a sealing ring 9 connected with an output shaft 10 of the driving motor is embedded in the sealing groove 6B. As shown in fig. 3, 4 and 5, for the application to the dual clutch of the two-speed transmission of the pure electric vehicle, the clutch hub 1 of the present application is the external clutch hub 1, and is not limited specifically.
Furthermore, an installation cavity for installing the first support bearing 4 is arranged in one end of the input rotary hub 6, which is close to the clutch rotary hub 1; a clamp spring groove (not shown) in the input rotary hub 6 is provided with a rotary hub clamp spring 3 for axially positioning the first support bearing 4 and stabilizing the first support bearing 4.
Furthermore, the external spline 6C is specifically an involute external spline, so that the transmission stress is uniform in the transmission process, and a large torque can be borne; the key groove of the external spline 6C is shallow, the stress concentration at the tooth root is small, the strength is weakened less, and the service life is prolonged; moreover, the guiding performance and the centering performance are good, and the double-clutch transmission is suitable for high-speed rotation occasions, and is particularly suitable for the double clutches of the two-gear transmission of the pure electric vehicle. The specific model of the external spline 6C is appropriately changed and selected according to actual needs, and is not particularly limited.
Further, the sealing ring 9 is specifically an O-ring, the sealing groove 6B is a groove distributed around the circumference of the input rotating hub 6, and the sealing ring 9 is embedded into the sealing groove 6B during installation; during assembly, the outer spline is hermetically connected with the inner wall of the output shaft 10 of the driving motor, so that external impurities are prevented from entering the meshing surface of the output shaft 10 of the driving motor and the outer spline 6C of the input rotating hub 6 to cause abrasion.
Further, the surface roughness of the shaft section for mounting the oil seal cover 8 on the input rotary hub 6 is less than Ra0.4. The roughness of the surface of the shaft section for mounting the oil seal cover 8 is designed to be less than Ra0.4, so that the oil seal cover 8 has better sealing performance when being mounted and assembled.
Further, in order to lubricate the first support bearing 4, as shown in fig. 1 to 3, a lubricating oil hole 6A communicating with a mounting cavity of the first support bearing 4 may be opened in the input hub 6. This lubricated mode can utilize oil pressure and centrifugal force effect to impress lubricating oil in the installation cavity of first support bearing 4 through lubricated oil hole 6A, realizes high-efficient lubrication.
Further, the first support bearing 4 may be a deep groove ball bearing, and is in interference fit with the input rotary hub 6. Similarly, the second support bearing 5 may be a deep groove ball bearing, and is in interference fit with the input rotary hub 6 to realize stable rotation fit.
While the present application provides an input interface device for a clutch of an automotive transmission, it will be appreciated by those skilled in the art that changes may be made in the embodiment and its application without departing from the principles of the invention, and the disclosure is not to be interpreted as limiting the application.
Claims (8)
1. An automotive transmission clutch input interface device, comprising: the clutch rotating hub, the input rotating hub, the thrust bearing, the first support bearing and the second support bearing are arranged on the first support bearing;
the thrust bearing is arranged on the clutch rotating hub;
the clutch rotating hub is connected with the input rotating hub through the thrust bearing;
the first support bearing is arranged in the input rotating hub and is used for supporting and connecting an input shaft of a transmission;
the second support bearing is arranged on a shaft shoulder of the input rotating hub and is used for supporting and connecting the sealing cover;
the input rotating hub is provided with an external spline matched with an output shaft of the driving motor, and the input rotating hub is also provided with a sealing groove at the tail end of the external spline;
and a sealing ring connected with the output shaft of the driving motor is embedded in the sealing groove.
2. The automotive transmission clutch input interface arrangement of claim 1, wherein the first support bearing is located within an end of the input hub proximate the clutch hub;
and a rotating hub snap spring is arranged in the input rotating hub and used for axially positioning the first supporting bearing.
3. The input interface device of an automotive transmission clutch as described in claim 1 wherein said external splines are specifically involute splines.
4. The input interface device of an automotive transmission clutch as described in claim 1, wherein said seal is embodied as an O-ring.
5. The automotive transmission clutch input interface device of claim 1, wherein the surface roughness of the shaft segment on the input hub for mounting an oil seal cover is less than ra0.4.
6. The input interface device of an automotive transmission clutch as claimed in claim 5, wherein the input hub is formed with a lubrication hole communicating with the mounting cavity of the first support bearing.
7. The input interface device of an automotive transmission clutch as described in claim 1, wherein said first support bearing is embodied as a deep groove ball bearing, which is interference fit with said input hub.
8. The input interface device of an automotive transmission clutch as described in claim 1, wherein said second support bearing is embodied as a deep groove ball bearing, which is interference fit with said input hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021333856.8U CN212744954U (en) | 2020-07-07 | 2020-07-07 | Input interface device of automobile transmission clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021333856.8U CN212744954U (en) | 2020-07-07 | 2020-07-07 | Input interface device of automobile transmission clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744954U true CN212744954U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021333856.8U Active CN212744954U (en) | 2020-07-07 | 2020-07-07 | Input interface device of automobile transmission clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744954U (en) |
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2020
- 2020-07-07 CN CN202021333856.8U patent/CN212744954U/en active Active
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