Clutch bearing sensor arrangement structure

Abstract

The utility model discloses a clutch bearing sensor arrangement structure which comprises a clutch body, a fork shaft, a shifting fork, a cam bearing, a release bearing, a linear sensor and an angular displacement sensor. The fork shaft is rotatably arranged in the clutch body, and the shifting fork is arranged on the fork shaft and can rotate along with rotation of the fork shaft. The clutch body is sleeved with the release bearing in a lifting mode, the cam bearing is arranged on the shifting fork, and rotation of the shifting fork can drive the release bearing to slide towards the release finger through the cam bearing. The linear sensor and the angular displacement sensor are arranged on the clutch body, the linear sensor can monitor the linear displacement amount of the release bearing, and the angular displacement sensor can monitor the angular displacement amount of the fork shaft. According to the clutch bearing sensor arrangement structure, the clutch stroke can be shortened, and the clutch time is shortened.

Description

A clutch bearing sensor arrangement structure Technical Field

[0001] This utility model belongs to the field of automotive technology, specifically, it relates to a clutch bearing sensor arrangement structure. Background Technology

[0002] In automotive transmission systems, the clutch, as a key component connecting the engine and gearbox, directly affects the vehicle's power transmission efficiency and driving comfort. The clutch disengagement process relies on the precise engagement of the release bearing and the release fingers on the clutch pressure plate. Accurately detecting the positional relationship between the release bearing and the release fingers is crucial for achieving rapid and smooth clutch disengagement.

[0003] Currently, existing technologies for detecting the positional relationship between the release bearing and the release finger typically employ a single sensor. This single-sensor arrangement can only acquire information about a single position of the release bearing or release finger, making it difficult to comprehensively and in real-time reflect the relative positional changes of the two throughout the entire disengagement process. When the control system controls the movement of the release bearing based on the detection signal from a single sensor, due to the lack of sufficient positional information, a relatively long travel distance is often required for the release bearing to ensure accurate contact with the release finger and completion of the disengagement action. This results in an excessively long disengagement stroke. Furthermore, a longer disengagement stroke inevitably increases the time required for disengagement, preventing the clutch from disengaging promptly and effectively. This not only affects the smoothness of gear shifting but may also accelerate wear on clutch components and reduce the clutch's lifespan.

[0004] As the automotive industry continues to demand higher efficiency from transmission systems and improved driving experience, the problems of long separation stroke and long separation time caused by the use of a single sensor to detect the positional relationship between the release bearing and the release finger in existing technologies are becoming increasingly prominent. There is an urgent need to propose a new clutch bearing sensor arrangement structure to solve the above-mentioned technical problems. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a clutch bearing sensor arrangement structure to solve the technical problem mentioned in the background art that the use of a single sensor for clutch detection in the prior art easily leads to long clutch stroke and long clutch time.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0007] A clutch bearing sensor arrangement structure includes a clutch body, a fork shaft, a shift fork, a cam bearing, a release bearing, a linear sensor, and an angular displacement sensor;

[0008] The fork shaft is rotatably mounted in the clutch body, the shift fork is mounted on the fork shaft and can rotate with the rotation of the fork shaft; the release bearing is vertically mounted on the clutch body, the cam bearing is mounted on the shift fork, and the rotation of the shift fork can drive the release bearing to slide toward the release finger through the cam bearing;

[0009] The linear sensor and the angular displacement sensor are respectively installed on the clutch body. The linear sensor can monitor the linear displacement of the release bearing, and the angular displacement sensor can monitor the angular displacement of the fork shaft.

[0010] Furthermore, the release bearing and the cam bearing are connected by a torsion spring.

[0011] Furthermore, the fork and the fork shaft are connected by a spline.

[0012] Furthermore, the shift fork is U-shaped, and the cam bearings are provided on both sides of the release bearing.

[0013] Furthermore, the linear sensor is a Hall effect linear sensor.

[0014] Compared with the prior art, the advantages of this utility model include:

[0015] By comparing data from angular displacement sensors and linear sensors, the position at which the release bearing just makes contact with the pressure plate can be determined more accurately. This allows for confirmation of the pressure plate's separation stroke and reduces separation time. Compared to the existing technology that uses a single linear sensor to determine the position of the release bearing, this application compares the angular displacement of the fork shaft that drives the release bearing with the linear displacement of the release bearing, resulting in more accurate position determination, reduced stroke, and thus reduced separation time.

[0016] In addition, by comparing the signals from the two sensors, the position at which the release bearing and the pressure plate just make contact can be accurately identified, which can reduce the total clutch stroke by 30% and the separation time by 25% compared to the existing clutch. The two position signals can be mutually verified to prevent excessive deviation of the engagement point. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is an overall schematic diagram of the arrangement structure of a clutch bearing sensor in this utility model;

[0019] Figure 2 is a schematic diagram of the clutch bearing sensor arrangement structure from another angle in this utility model;

[0020] Figure 3 is a schematic diagram of the shift fork, cam bearing, and torsion spring in this utility model.

[0021] Figure label:

[0022] 1. Clutch body; 2. Fork shaft; 3. Shift fork; 4. Cam bearing; 5. Release bearing; 6. Linear sensor; 7. Angular displacement sensor; 8. Torsion spring. Detailed Implementation

[0023] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.

[0024] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0026] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0027] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] This utility model embodiment is intended to introduce and explain the structural composition of a clutch bearing sensor arrangement structure and the matching relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the clutch bearing sensor arrangement structure in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0029] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0030] Please refer to Figures 1-3 together. This embodiment provides a clutch bearing sensor arrangement structure, including clutch body 1, fork shaft 2, shift fork 3, cam bearing 4, release bearing 5, linear sensor 6 and angular displacement sensor 7.

[0031] The fork shaft 2 is rotatably mounted inside the clutch body 1, and the shift fork 3 is mounted on the fork shaft 2 and can rotate with the rotation of the fork shaft 2; the release bearing 5 is vertically mounted on the clutch body 1, and the cam bearing 4 is mounted on the shift fork 3. The rotation of the shift fork 3 can drive the release bearing 5 to slide toward the release finger through the cam bearing 4.

[0032] Linear sensor 6 and angular displacement sensor 7 are respectively mounted on the clutch body 1. Linear sensor 6 monitors the linear displacement of release bearing 5, and angular displacement sensor 7 monitors the angular displacement of fork shaft 2. It should be understood that the clutch body 1 is a structure composed of components that, in addition to the aforementioned structure, can normally realize the clutch function. It can control the rotation of fork shaft 2 through corresponding motors or other structures, causing release bearing 5 to press the release finger, thus engaging or disengaging the clutch. Specifically, the release finger is the raised portion of the diaphragm spring in existing clutch structures. It should also be understood that linear sensor 6 and angular displacement sensor 7 are connected to corresponding processing chips. By comparing the values ​​of linear sensor 6 and angular displacement sensor 7, the rotation angle of fork shaft 2 is controlled, thereby confirming the disengagement stroke of the pressure plate.

[0033] In this application, by comparing the data from the angular displacement sensor 7 and the linear sensor 6, the position of the release bearing 5 at the moment of contact with the pressure plate can be determined more accurately. This is used to confirm the separation stroke of the pressure plate and reduce the separation time. Compared with the existing technology that uses a single linear sensor 6 to determine the position of the release bearing 5, this application compares the angular displacement of the fork shaft 2 that drives the release bearing 5 to move with the linear displacement of the release bearing 5, making the position determination more accurate, reducing the stroke, and thus reducing the separation time.

[0034] In addition, by comparing the signals from the two sensors, the position when the release bearing 5 and the pressure plate just come into contact can be accurately identified. Compared with the existing clutch, the total stroke can be reduced by 30% and the separation time can be reduced by 25%. The two position signals can be mutually verified to prevent excessive deviation of the engagement point.

[0035] In other designs, the release bearing 5 and the cam bearing 4 are connected by a torsion spring 8. The torsion spring 8 can effectively move the release bearing 5 towards and away from the release finger.

[0036] In other designs, the shift fork 3 and the fork shaft 2 are connected by a spline. This spline connection allows for easy installation of the fork shaft 2 and facilitates adjustment of the position of the shift fork 3.

[0037] In other designs, the shift fork 3 is U-shaped, and cam bearings 4 are provided on both sides of the release bearing 5. By pushing the release bearing 5 from both sides, the movement of the release bearing 5 is made smoother.

[0038] In other designs, the linear sensor 6 is a Hall effect linear sensor 6. Hall effect sensors are simple in structure, low in cost, and have good vibration resistance, making them suitable for use in automotive structures.

[0039] The aforementioned clutch bearing sensor arrangement can shorten the clutch stroke and reduce the clutch time.

[0040] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A clutch bearing sensor arrangement structure, characterized in that: The clutch includes a clutch body, a fork shaft, a shift fork, a cam bearing, a release bearing, a linear sensor, and an angular displacement sensor. The fork shaft is rotatably mounted within the clutch body, and the shift fork is mounted on the fork shaft and rotates with the fork shaft. The release bearing is vertically mounted on the clutch body, and the cam bearing is mounted on the shift fork. The rotation of the shift fork can drive the release bearing to slide towards the release finger via the cam bearing. The linear sensor and the angular displacement sensor are respectively mounted on the clutch body. The linear sensor can monitor the linear displacement of the release bearing, and the angular displacement sensor can monitor the angular displacement of the fork shaft.

2. The clutch bearing sensor arrangement structure according to claim 1, characterized in that: The release bearing and the cam bearing are connected by a torsion spring.

3. The clutch bearing sensor arrangement structure according to claim 1, characterized in that: The fork and the fork shaft are connected by a spline.

4. The clutch bearing sensor arrangement structure according to claim 1, characterized in that: The shift fork is U-shaped, and the cam bearings are provided on both sides of the release bearing.

5. The clutch bearing sensor arrangement structure according to claim 1, characterized in that: The linear sensor is a Hall effect linear sensor.

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