CN213332127U - Hydraulic release bearing assembly, clutch control mechanism and vehicle - Google Patents

Abstract

The disclosure relates to a hydraulic release bearing assembly, a clutch operating mechanism and a vehicle. The hydraulic release bearing assembly comprises a cylinder body, a piston and a rolling bearing assembly. The cylinder body is provided with a first hydraulic cavity and a second hydraulic cavity which are independent from each other and have openings facing the end parts of the separation fingers, one of the first hydraulic cavity and the second hydraulic cavity is connected with the clutch pedal, and the other one of the first hydraulic cavity and the second hydraulic cavity is connected with the power assisting device; a first sliding part which is sealed and in sliding fit with the first hydraulic cavity and a second sliding part which is sealed and in sliding fit with the second hydraulic cavity are respectively formed at one end of the piston, which is far away from the end part of the separation finger, and a pushing part is formed at one end of the piston, which faces the end part of the separation finger; and the rolling bearing assembly is arranged on the pushing part. Through above-mentioned technical scheme, can not increase the footboard stroke when reducing pedal power, improve the travelling comfort and the convenient operation nature of driving.

Description

Hydraulic release bearing assembly, clutch control mechanism and vehicle

Technical Field

The disclosure relates to the technical field of vehicles, in particular to a hydraulic release bearing assembly, a clutch operating mechanism and a vehicle.

Background

With the continuous application of the large-torque engine, the problem of overlarge pedal force can occur in the process of operating and designing a clutch pedal of the large-torque engine. In order to meet the requirement of pedal force, certain man-machine comfort is sacrificed during design, and the pedal force is reduced by increasing the pedal stroke. However, such a design often causes a problem of uncomfortable pedaling in the process of pedaling the clutch pedal, and the increased pedal stroke makes the narrow arrangement space of the clutch pedal more crowded, especially for MT (manual transmission) vehicle type, and the pedal operation force cannot be reduced in an auxiliary manner due to the defect of the structural design of the hydraulic release bearing assembly.

SUMMERY OF THE UTILITY MODEL

A first object of the present disclosure is to provide a hydraulic release bearing assembly capable of improving driving comfort and operational convenience without increasing a pedal stroke while reducing a pedal force.

In order to achieve the above object, the present disclosure provides a hydraulic release bearing assembly including:

the clutch device comprises a cylinder body, a clutch pedal and a clutch diaphragm spring, wherein the cylinder body is provided with a first hydraulic cavity and a second hydraulic cavity, the openings of the first hydraulic cavity and the second hydraulic cavity face the end parts of a separation finger of the clutch diaphragm spring, one of the first hydraulic cavity and the second hydraulic cavity is connected with the clutch pedal, and the other one of the first hydraulic cavity and the second hydraulic cavity is connected with a power assisting device;

a first sliding part which is sealed and in sliding fit with the first hydraulic cavity and a second sliding part which is sealed and in sliding fit with the second hydraulic cavity are respectively formed at one end of the piston, which is far away from the end part of the clutch diaphragm spring separation finger, and a pushing part is formed at one end of the piston, which is far towards the end part of the clutch diaphragm spring separation finger; and

and the rolling bearing assembly is arranged on the pushing part.

Optionally, the cylinder body is coaxially provided with three layers of cylindrical cylinder walls from inside to outside, a first hydraulic pressure cavity and a second hydraulic pressure cavity are formed between two adjacent cylinder walls, and a first opening communicated with the first hydraulic pressure cavity and a second opening communicated with the second hydraulic pressure cavity are respectively arranged on the cylinder walls.

Optionally, the first sliding part and the second sliding part are provided with a sealing cup respectively at an end departing from the clutch diaphragm spring separation finger, the sealing cup comprises a sealing part and a connecting part, the sealing part is attached to the inner side walls of the first hydraulic cavity and the second hydraulic cavity, and the connecting part is connected with the first sliding part and the second sliding part.

Optionally, the periphery wall cover of cylinder body is equipped with the answer spring, the one end of answer spring with the cylinder body is connected, the other end with the antifriction bearing assembly is connected.

Optionally, the outer peripheral wall of the cylinder body is further sleeved with a dust cover for protecting the return spring, and the dust cover is configured into a telescopic structure.

Optionally, the rolling bearing assembly includes a bearing inner ring, a bearing outer ring and balls, the bearing inner ring is sleeved on the pushing portion, and a first sealing retainer ring and a second sealing retainer ring are respectively arranged between the bearing inner ring and the bearing outer ring.

Optionally, one end of the cylinder body facing the clutch diaphragm spring separation finger is provided with a limit check ring for limiting displacement of the rolling bearing assembly.

Optionally, the booster is an electric booster.

A second object of the present disclosure is to provide a clutch operating mechanism, comprising:

a clutch pedal;

a booster device;

a hydraulic release bearing assembly, said hydraulic release bearing assembly being the above-mentioned hydraulic release bearing assembly; a hydraulic system is arranged between the clutch pedal and the hydraulic release bearing assembly and between the power assisting device and the hydraulic release bearing assembly;

the monitoring device is used for monitoring the speed and the stroke of stepping the clutch pedal; and

and the controller is connected with the monitoring device and used for controlling the hydraulic release bearing assembly to work according to the acquired speed and stroke signals of the pedal of the clutch.

It is a third object of the present disclosure to provide a vehicle including the above-described hydraulic release bearing assembly or clutch operating mechanism.

Through the technical scheme, through being provided with mutually independent first hydraulic pressure chamber and second hydraulic pressure chamber, and no matter be in two hydraulic pressure chamber simultaneous workings still respectively when independent work, can both drive the piston and make the antifriction bearing assembly act on same separation indicate, thereby realize reducing the purpose of pedal power with the help of other auxiliary device, the stroke of footboard still need not to increase simultaneously, the problem that big moment of torsion engine separation and reunion footboard arrangement space is little has been solved, the travelling comfort of vehicle driving in-process and the convenience of operation have been improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is an elevation view of a hydraulic release bearing assembly provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a top view of a hydraulic release bearing assembly provided by an exemplary embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along the line C-C of FIG. 2;

FIG. 6 is an enlarged view of portion D of FIG. 3;

fig. 7 is an enlarged view of a portion E in fig. 3.

Description of the reference numerals

1-cylinder body, 11-first hydraulic cavity, 12-second hydraulic cavity, 13-first opening, 14-second opening, 2-piston, 21-first sliding part, 22-second sliding part, 23-pushing part, 24-sealing leather cup, 241-sealing part, 242-connecting part, 3-rolling bearing assembly, 31-bearing inner ring, 32-bearing outer ring, 33-rolling ball, 34-first sealing check ring, 35-second sealing check ring, 4-return spring, 5-dust cover and 6-limit check ring.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, use of directional terms such as "upper, lower, left, and right" generally means that they are defined with reference to the drawing plane directions of the corresponding drawings. "inner and outer" refer to the inner and outer of the respective component profiles. The terms "first," "second," and the like are used herein to distinguish one element from another, and are not intended to be sequential or important. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.

As shown in fig. 1 to 7, the present disclosure provides a hydraulic release bearing assembly including a cylinder block 1, a piston 2, and a rolling bearing assembly 3. The cylinder 1 therein has a first hydraulic chamber 11 and a second hydraulic chamber 12 which are independent of each other and open toward the portion of the separating finger (not shown in the figure). One of the first hydraulic chamber 11 and the second hydraulic chamber 12 is connected to a clutch pedal, and the other is connected to a power assist device. For the description, only the first hydraulic chamber 11 is connected to the clutch pedal, and the second hydraulic chamber 12 is connected to the booster. It should be understood that the first hydraulic chamber 11 may also be connected to the power assist device, while the second hydraulic chamber 12 is connected to the clutch pedal. A first sliding part 21 which is sealed and in sliding fit with the first hydraulic pressure chamber 11 and a second sliding part 22 which is sealed and in sliding fit with the second hydraulic pressure chamber 12 are respectively formed at one end of the piston 2 which is far away from the end part of the separation finger, and a pushing part 23 is formed at one end of the piston 2 which faces the end part of the separation finger. The rolling bearing assembly 3 is mounted on the push portion 23. The release finger, i.e., the clutch diaphragm spring release finger, is provided at an upper portion (upper side in the drawing direction in fig. 1 and 3) of the hydraulic release bearing assembly. The piston 2 pushes the rolling bearing assembly 3 to move up and down to be engaged or disengaged with the disengaging fingers, so that the clutch is disengaged or engaged.

According to one embodiment of the present disclosure, as shown in fig. 3, the cylinder body 1 is provided with three layers of cylindrical cylinder walls from inside to outside coaxially, and a first hydraulic pressure chamber 11 and a second hydraulic pressure chamber 12 are respectively formed between two adjacent cylinder walls. For convenience of description, a hydraulic chamber closer to the axial center of the cylinder 1 will be hereinafter defined as a first hydraulic chamber 11, and a hydraulic chamber farther from the axial center of the cylinder 1 will be hereinafter defined as a second hydraulic chamber 12. The cylinder 1 is provided with a first opening 13 communicating with the first hydraulic pressure chamber 11 and a second opening 14 communicating with the second hydraulic pressure chamber 12, respectively, so that the liquids can enter the first hydraulic pressure chamber 11 and the second hydraulic pressure chamber 12, respectively, without communicating with each other. It should be understood that the cylinder 1 is a cylindrical structure and the first hydraulic pressure chamber 11 and the second hydraulic pressure chamber 12 are formed by way of example only, and any cylinder structure capable of achieving the above functions and formed with independent hydraulic pressure chambers can be applied to the present disclosure, and will not be described herein again.

The piston 2 is a single piece, that is, the first sliding portion 21, the second sliding portion 22 and the pushing portion 23 can be integrally formed by injection molding. With the piston 2 thus constructed, it is possible to act on the same piston 2 regardless of whether the clutch pedal is operated alone, the booster is operated alone, or the clutch pedal and the booster are operated simultaneously. When a clutch pedal is stepped or the power assisting device works, hydraulic oil enters the hydraulic cavity to enable the piston 2 to move upwards, and the piston 2 moves upwards to push the rolling bearing assembly 3 to move upwards and act on a separating finger, so that the purpose of separating the clutch is achieved. When the cylinder 1 is of a cylindrical configuration, the piston 2 may also be of a cylindrical configuration for cooperative use.

For example, when the required pedal force is small, the hydraulic oil enters the first hydraulic chamber 11 (as shown in fig. 4) by stepping on the clutch pedal, and the entire piston 2 is driven to move upward by pushing the first sliding portion 21, so as to realize clutch disengagement, or when the required pedal force is large, the hydraulic oil enters the first hydraulic chamber 11 by stepping on the clutch pedal, and the power assisting device operates, and the hydraulic oil enters the second hydraulic chamber 12 (as shown in fig. 5), and the hydraulic oil in the two hydraulic chambers simultaneously pushes the first sliding portion 21 and the second sliding portion 22 respectively to drive the entire piston 2 to move upward, so as to realize clutch disengagement. The booster may be any one of those known in the art, for example, an electric booster such as an electric booster disclosed in CN 102029995A. In addition, other forms of existing booster vacuum boosters and the like can be equally applied to the present disclosure to achieve the inventive objects of the present disclosure.

Through the technical scheme, through being provided with mutually independent first hydraulic pressure chamber 11 and second hydraulic pressure chamber 12, and no matter be in two hydraulic pressure chamber simultaneous workings still respectively during independent work, can both drive the piston and make the antifriction bearing assembly act on same separation indicate, thereby realize reducing the purpose of pedal power with the help of other auxiliary device, the stroke of footboard still need not to increase simultaneously, the problem that big moment of torsion engine separation footboard arrangement space is little has been solved, the travelling comfort of vehicle driving in-process and the convenience of operation have been improved.

Referring to fig. 3 and 6, the ends of the first sliding part 21 and the second sliding part 22 facing away from the separating finger are respectively provided with a sealing cup 24. The seal cup 24 includes a sealing portion 241 and a connecting portion 242, and the sealing portion 241 is attached to the inner side walls of the first hydraulic chamber 11 and the second hydraulic chamber, so that the hydraulic chambers can be closed in the process of moving up and down along with the first sliding portion 21 and the second sliding portion 22, and hydraulic oil is prevented from entering the upper rolling bearing assembly 3 and other components. The seal cup 24 is made of a flexible material and the seal portion 241 is configured to expand outward to be closely attached to the inner side walls of the first and second hydraulic chambers 11 and 11. The connection portion 242 is connected to the first and second sliding portions 21 and 22 so as to be movable up and down together with the first and second sliding portions 21 and 22.

As shown in fig. 3, in the present disclosure, a return spring 4 is sleeved on the outer peripheral wall of the cylinder 1, one end of the return spring 4 is connected to the cylinder 1, and the other end is connected to the rolling bearing assembly 3. Specifically, mounting grooves for fixing the return spring 4 may be provided on the outer peripheral wall of the cylinder block 1 and on the rolling bearing assembly 3, respectively. After the clutch pedal is released, the rolling bearing assembly 3 can be restored to the original position by the elastic restoring force of the restoring spring 4. Furthermore, the outer peripheral wall of the cylinder 1 may be sleeved with a dust cover 5, and in the embodiment shown in fig. 3, the dust cover 5 is sleeved outside the return spring 4 for protecting the return spring 4. One end of the dust cover 5 is connected with the cylinder body 1, and the other end is connected with the rolling bearing assembly 3. Similarly, mounting grooves for fixing the dust cover 5 may be provided in the outer peripheral wall of the cylinder block 1 and the rolling bearing assembly 3, respectively. The dust cover 5 is configured in a telescopic structure so as to be able to expand as the rolling bearing assembly 3 moves upward and compress as the rolling bearing assembly 3 returns to its original position.

Referring to fig. 3 and 7, the rolling bearing assembly 3 includes a bearing inner ring 31, a bearing outer ring 32 and balls 33, the bearing inner ring 31 is sleeved on the pushing portion 23 and can move up and down under the pushing of the pushing portion 23 to contact or separate from the separating fingers. A first sealing ring 34 and a second sealing ring 35 are respectively arranged between the bearing inner ring 31 and the bearing outer ring 32. When the hydraulic release bearing assembly of the present disclosure has the return spring 4 and the dust cover 5, a mounting groove for mounting the return spring 4 and the dust cover 5 may be opened on the bearing outer race 32. In addition, the cylinder body 1 is provided with spacing retaining ring 6 towards the one end that the separation indicates for restrict the displacement of rolling bearing assembly 3, avoid the slippage.

It is a second object of the present disclosure to provide a clutch operating system including a clutch pedal, a booster, a hydraulic release bearing assembly, a monitoring device, and a controller. The hydraulic release bearing assembly has all the beneficial effects of the hydraulic release bearing assembly, and is not described herein again. The clutch pedal is communicated with a first hydraulic cavity 11 of the hydraulic release bearing assembly, and the power assisting device is communicated with a second hydraulic cavity 12 of the hydraulic release bearing assembly. Hydraulic systems are respectively arranged between the clutch pedal and the hydraulic release bearing assembly and between the power assisting device and the hydraulic release bearing assembly, so that when the clutch pedal and the power assisting device are trampled for work, hydraulic oil can respectively enter the first hydraulic cavity 11 and the second hydraulic cavity 12. The hydraulic system comprises a master cylinder, a hydraulic pipeline and the like.

In some embodiments, the monitoring device may be a displacement sensor disposed on the clutch master cylinder for monitoring the speed and stroke of the driver stepping on the clutch pedal. The controller is connected with the monitoring device and used for controlling the hydraulic release bearing assembly to work according to the obtained speed and stroke signals of the pedal of the clutch. The controller may be a vehicle control unit (ECU) or a separately provided controller for controlling the clutch operating mechanism. The controller passes through monitoring devices discernment navigating mate's intention of trampling the clutch pedal, calculate navigating mate's speed and stroke of trampling the clutch pedal (first hydraulic pressure chamber 11 carries out work this moment, the hydraulic oil that enters into in the first hydraulic pressure chamber 11 finally promotes antifriction bearing assembly 3 and carries out work), operation booster unit carries out work (second hydraulic pressure chamber 12 carries out work this moment, the hydraulic oil that enters into second hydraulic pressure chamber 12 finally promotes antifriction bearing assembly 3 and carries out work), when two hydraulic pressure chambers simultaneous working, the effort is all on antifriction bearing assembly 3, thereby reach the purpose that reduces clutch pedal power.

In addition, the pedal stroke is further optimized by adjusting the sectional areas of the first hydraulic chamber 11 and the second hydraulic chamber 12 immediately after the clutch pedal is formed according to the conventional man-machine comfort calculation.

A third object of the present disclosure is to provide a vehicle including the above-mentioned hydraulic release bearing assembly or clutch operating mechanism, and having all the advantages of the hydraulic release bearing assembly or clutch operating mechanism, which will not be described in detail herein.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A hydraulic release bearing assembly, comprising:

the clutch pedal device comprises a cylinder body (1) and a clutch pedal, wherein the cylinder body is provided with a first hydraulic cavity (11) and a second hydraulic cavity (12) which are independent from each other and open towards the end part of a separation finger, one of the first hydraulic cavity (11) and the second hydraulic cavity (12) is connected with the clutch pedal, and the other one is connected with a power assisting device;

a piston (2), wherein a first sliding part (21) which is sealed and in sliding fit with the first hydraulic cavity (11) and a second sliding part (22) which is sealed and in sliding fit with the second hydraulic cavity (12) are respectively formed at one end of the piston (2) which is far away from the end part of the separation finger, and a pushing part (23) is formed at one end of the piston (2) which is far towards the end part of the separation finger; and

a rolling bearing assembly (3) mounted on the pushing portion (23).

2. The hydraulic release bearing assembly according to claim 1, wherein the cylinder block (1) is provided with three layers of cylindrical cylinder walls from inside to outside coaxially, a first hydraulic pressure chamber (11) and a second hydraulic pressure chamber (12) are respectively formed between two adjacent cylinder walls, and a first opening (13) communicated with the first hydraulic pressure chamber (11) and a second opening (14) communicated with the second hydraulic pressure chamber (12) are respectively provided on the cylinder block (1).

3. The hydraulic release bearing assembly according to claim 1, wherein one ends of the first sliding portion (21) and the second sliding portion (22) facing away from the release finger are respectively provided with a sealing cup (24), the sealing cups (24) comprise sealing portions (241) and connecting portions (242), the sealing portions (241) are attached to inner side walls of the first hydraulic chamber (11) and the second hydraulic chamber (12), and the connecting portions (242) are connected with the first sliding portion (21) and the second sliding portion (22).

4. The hydraulic release bearing assembly according to claim 1, wherein the outer peripheral wall of the cylinder body (1) is sleeved with a return spring (4), one end of the return spring (4) is connected with the cylinder body (1), and the other end is connected with the rolling bearing assembly (3).

5. Hydraulic release bearing assembly according to claim 4, wherein the outer circumferential wall of the cylinder block (1) is further sheathed with a dust cover (5) for protecting the return spring (4), the dust cover (5) being configured in a telescopic structure.

6. The hydraulic release bearing assembly according to claim 1, wherein the rolling bearing assembly (3) comprises an inner bearing ring (31), an outer bearing ring (32) and balls (33), the inner bearing ring (31) is sleeved on the pushing portion (23), and a first sealing retainer ring (34) and a second sealing retainer ring (35) are respectively arranged between the inner bearing ring (31) and the outer bearing ring (32).

7. The hydraulic release bearing assembly according to claim 1, characterized in that the cylinder block (1) is provided at its end facing the release finger with a limit stop ring (6) for limiting the displacement of the rolling bearing assembly (3).

8. The hydraulic release bearing assembly of claim 1, wherein the booster is an electric booster.

9. A clutch operating mechanism, comprising:

a clutch pedal;

a booster device;

a hydraulic release bearing assembly as claimed in any one of claims 1 to 8; a hydraulic system is arranged between the clutch pedal and the hydraulic release bearing assembly and between the power assisting device and the hydraulic release bearing assembly;

the monitoring device is used for monitoring the speed and the stroke of stepping the clutch pedal; and

and the controller is connected with the monitoring device and used for controlling the hydraulic release bearing assembly to work according to the acquired speed and stroke signals of the pedal of the clutch.

10. A vehicle comprising a hydraulic release bearing assembly according to any one of claims 1 to 8 or a clutch operating mechanism according to claim 9.

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