KR20240057788A - Wear compensation device for clutch actuator in vehicle - Google Patents

Abstract

The present invention is a wear compensation device for a clutch actuator of a vehicle, and more specifically, a housing of a clutch actuator, and a first wear compensation unit built into the housing and adjusting the set position for the linear movement of the output rod when the clutch actuator is operated. and a second wear compensation unit built into the housing and rotatably passing through the first wear compensation unit in conjunction with the output rod.

Description

Wear compensation device for vehicle clutch actuator {WEAR COMPENSATION DEVICE FOR CLUTCH ACTUATOR IN VEHICLE}

The present invention relates to a wear compensation device for a vehicle's clutch actuator, and more specifically, to a wear compensation device for a vehicle's clutch actuator that can prevent malfunction by compensating for wear of a clutch provided in a vehicle.

Generally, a clutch is installed between the engine and the transmission in a vehicle, and the clutch is connected between the engine-side flywheel and the transmission input shaft to transmit or block the rotational force of the engine to the transmission.

The clutch blocks power from the engine when starting the vehicle or shifting gears in the transmission, and connects the engine power to the propulsion shaft while driving.

Recently, in order to respond to fuel efficiency regulations in the automobile industry, the number of vehicles equipped with manual transmission (MT) structure transmissions has been increasing, and the manual transmission of vehicles uses a clutch control system of the clutch release cylinder or concentric sleeve cylinder type. do.

In a manual transmission, when the driver steps on the clutch pedal, the hydraulic pressure generated in the clutch master cylinder transmits power through the tappet of the clutch release cylinder, and the power transmitted through the tappet pushes the clutch release fork and moves the release bearing in the axial direction. It moves and transmits power to the clutch diaphragm spring.

Manual transmissions have the inconvenience of requiring the driver to operate the clutch pedal directly, and the driving feel and driving stability are determined by the driver's skill level. Therefore, automatic manual transmissions equipped with a clutch actuator that performs the intermittent action of the clutch are widely used. there is.

The clutch actuator is used as a means to control power during shifting in the process of transmitting engine power to the wheels through the transmission. It is installed with a disc facing each other on one side of the flywheel installed on the engine's crankshaft and on one side of the transmission input shaft. And, power is transmitted by the friction force generated by pressing the clutch disc with the pressure plate.

Conventional clutch actuators had the problem of deteriorating vehicle durability and product reliability because wear compensation for clutch malfunction factors such as shock or slippage during shifting was not properly applied. Therefore, there is a need to improve this.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 10-0225114 (published on February 19, 1997, title of the invention: Actuator for automobile friction clutch).

The present invention was created to solve the above problems, and the purpose of the present invention is to provide a wear compensation device for a clutch actuator of a vehicle that can prevent malfunction by compensating for wear of a clutch provided in a vehicle.

A wear compensation device for a clutch actuator of a vehicle according to the present invention includes a housing of a clutch actuator, a first wear compensation unit built in the housing, and which adjusts a set position for linear movement of the output rod when the clutch actuator is operated. It is built into the housing and includes a second wear compensation unit that is interlocked with the output rod and rotatably passes through the first wear compensation unit.

In the present invention, the first wear compensation part is fixed on the coaxial side of the housing, a body that mutually interferes with the second wear compensation part so that the second wear compensation part rotatably passes, and a body that protrudes along the inner peripheral surface of the body. It may be provided with a plurality of guide protrusions that interfere with the rotation of the second wear compensation part.

In the present invention, the housing has a receiving groove formed on the inside, and the body has a locking portion protruding in one direction along the circumferential surface so that it can be coupled to the receiving groove.

In the present invention, the second wear compensation unit includes a base body coupled to the screw of the output rod and a plurality of guiders disposed along the circumferential surface of the base body to guide the rotation of the base body due to interference with the guide protrusion. can be provided.

In the present invention, the guiders may be arranged to be offset so that the base body rotates in one direction when passing the body, and may extend at an angle toward the ends facing each other.

According to the wear compensation device for a clutch actuator of a vehicle according to the present invention, the first wear compensation unit and the second wear compensation unit have the effect of compensating for wear that may occur during operation of the clutch actuator.

In addition, according to the present invention, the wear compensation device for the clutch actuator of a vehicle reduces the number of operations to compensate for wear of the clutch, and thus the durability and operational reliability of the vehicle can be improved due to process simplification.

Figure 1 is a partial enlarged view of a clutch actuator to which a wear compensation device for a clutch actuator of a vehicle is applied according to an embodiment of the present invention.
Figure 2 is a diagram showing a first wear compensation unit and a second wear compensation unit in the wear compensation device for a clutch actuator of a vehicle according to an embodiment of the present invention.
Figure 3 is a schematic diagram illustrating the principle of mutual interference between the first wear compensation unit and the second wear compensation unit in the wear compensation device for a clutch actuator of a vehicle according to an embodiment of the present invention.
Figure 4 is a diagram for explaining the wear compensation operation relationship due to mutual interference between the first wear compensation unit and the second wear compensation unit according to an embodiment of the present invention.

Hereinafter, an embodiment of a wear compensation device for a vehicle clutch actuator according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is a partial enlarged view of a clutch actuator to which a wear compensation device for a vehicle's clutch actuator according to an embodiment of the present invention is applied, and Figure 2 is a first wear compensation device for a vehicle's clutch actuator according to an embodiment of the present invention. This is a drawing showing the compensation unit and the second wear compensation unit, and it is based on this. However, since the configuration and operating relationship of the clutch actuator is a prior art, the specific coupling and operating relationship thereof will be omitted or a schematic description will be given based on only some parts related to the present invention, and some parts will be included to clarify the embodiments of the present invention. Symbols in drawings are omitted.

The clutch actuator to which the wear compensation device 100 for a vehicle's clutch actuator according to the present invention is applied is placed in the vehicle's transmission and transmits power to engage the clutch, and performs clutch operation and wear compensation according to the vehicle's operating conditions. controlled for.

The clutch actuator may be composed of a drive motor, ball screw, cam, operating lever 10, and output rod 30.

The clutch actuator has an output rod 30 that moves axially for the operation of the clutch inside the housing 110, and compensates for the stroke setting position of the output rod 30 so that the gap due to wear of the clutch disc is kept constant. A wear compensation device 100 for a clutch actuator of a vehicle is disposed.

The output rod 30 is connected to the transfer pipe 31 axially movable inside the guide pipe 111 of the housing 110, and the rear end of the transfer pipe 31 and the link member 32. The shaft 33 and the screw 34 inserted into the inside of the transfer pipe 31 are inserted longitudinally into the inside of the screw 34 and connected to the fork of the clutch, and the end 35a is connected to the screw 34. It is provided with a rod member (35) hooked to the end of.

The transfer pipe 31 has a hollow cylindrical shape and is slidably disposed on the inner peripheral surface of the guide pipe 111 so that the driving force of the clutch actuator is transmitted through the link member 32.

The link member 32 is longitudinally connected to both sides of the transfer pipe 31, and an operating shaft 33 pulled by an operating lever 10 is rotatably mounted at the rear.

As shown in Figures 1 and 2, the wear compensation device 100 for a clutch actuator of a vehicle according to the present invention includes a housing 110 of the clutch actuator, a first wear compensation unit 130, and a second wear compensation unit ( 150).

The housing 110 extends to form an axial receiving space inside the clutch actuator, and a receiving groove 113 is formed in a portion of the inner portion.

The housing 110 is a first motor that compensates for the stroke setting position of the output rod 30 so that the gap due to wear of the output rod 30 and the clutch disk, which reciprocates linearly along the axial direction for operation of the clutch, is maintained constant. The wear compensation unit 130 and the second wear compensation unit 150 are built-in.

The first wear compensation unit 130 is built into the housing 110 of the clutch actuator, and the body 131 and the guide protrusion 133 adjust the setting position for the linear reciprocating movement of the output rod 30 when the clutch actuator operates. ) is provided.

The body 131 has a circular shape with a hollow hole 131a, is disposed inside the housing 110 and is fixed on the coaxial side of the housing 110, and when the clutch actuator operates, the second wear compensation unit 150 It mutually interferes with the second wear compensation unit 150 so that it can rotatably pass.

The body 131 may be disposed along the circumferential surface to form a locking portion 135 that protrudes toward the inner peripheral surface of the housing 110, and the locking portion 135 may extend from the circumferential surface to form an integral part or be formed on the circumferential surface. It can be implemented detachably.

The guide protrusions 133 are arranged in a certain pattern along the inner peripheral surface of the body 131 and protrude toward the center perpendicular to the axial direction, so that they interfere with the rotation of the second wear compensation unit 150. It can be implemented in plural numbers. .

The guide protrusion 133 protrudes and extends toward the center perpendicular to the axial direction to ensure smooth interference during the passing operation between the first wear compensation unit 130 and the second wear compensation unit 150, and has a circumference of a constant length. It has sides.

The second wear compensation unit 150 is coupled to the output rod 30 and built into the housing 110 of the clutch actuator, and is linked to the reciprocating linear movement of the output rod 30 to rotate the first wear compensation unit 130. A base body 151 and a guider 153 are provided to enable passage.

The base body 151 has a cylindrical shape extending in the axial direction, has an inner diameter formed of a screw thread, and is screw-coupled with the screw 34 of the output rod 30 to engage in linear reciprocating movement of the output rod 30.

The base body 151 moves along the axial direction of the housing 110 according to the operation of the output rod 30, and rotates in one direction while passing through the hollow hole 131a of the first wear compensation unit 130 to reduce wear. Compensatory operation can be performed.

The guider 153 may be arranged in a plurality in a specific pattern along the circumferential surface of the base body 151, and may be provided as a first guide body (153) to guide the rotation of the base body 151 due to mutual interference with the guide protrusion 133. 153a) and a second guide body 153c.

The first guide body 153a extends from both ends of the base body 151 in the axial direction toward the center of the circumferential surface and has a first guide surface 153b on one side.

The second guide body 153c extends from the first guide body 153a toward the center of the peripheral surface of the base body 151 in the axial direction.

The second guide body 153c has an end surface 153d formed flat at the end, a second guide surface 153e extending from the first guide surface 153b, and a second guide surface 153e extending from the end of the first guide body 153a. It has 3 guide surfaces 153f.

The guider 153 is a plurality of guide members 153 arranged misaligned so that the base body 151 of the second wear compensation unit 150 rotates in one direction only when it passes through the body 131 of the first wear compensation unit 130. -1 to 153-7), and extends obliquely toward the ends facing each other.

In the configuration of the wear compensation device 100 for a vehicle clutch actuator according to the present invention described above, the wear compensation device 100 for a vehicle clutch actuator has a receiving groove 113 formed inside the housing 110 of the clutch actuator. It can be.

In the wear compensation device 100 for a vehicle's clutch actuator, the body 131 of the first wear compensation unit 130 forms a locking portion 135 that protrudes in one direction along the circumferential surface, is embedded in the clutch actuator, and has a receiving groove ( 113).

The first wear compensation unit 130 prevents separation and separation from the housing 110 due to mutual interference as the second wear compensation unit 150 rotates and passes as the catching portion 135 is formed, and through this, By adjusting the set position for the stroke section of the output rod 30, the operational relationship with the second wear compensation unit 150 can be maintained so that the compensation operation for wear is performed smoothly.

The guiders 153 are arranged to be offset so that the base body 151 of the second wear bar upper part rotates only in one direction when it passes the body 131 of the first wear compensation part 130, and the second guide body 153c It extends obliquely toward the end, forming end surfaces 153d that face each other at the ends.

When the first wear compensation unit 130 passes through the second wear compensation unit 150, the guide protrusion 133 touches the first guide surface 153b, the second guide surface 153e, and the third guide of the guider 153. It has a peripheral surface that protrudes toward the center perpendicular to the axial direction of the base body 151 to ensure smooth mutual contact with at least one of the surfaces 153f.

The first wear compensation unit 130 has a circular cross-section of the guide protrusion 133, and is arranged in a certain pattern along the inner peripheral surface of the body 131 to correspond to the position of each guider 153 of the base body 151. .

The second wear compensation unit 150 is formed so that the width of the first guide body 153a is relatively larger than the width of the first guide body 153a to improve the durability of the guider 153 according to the rotation of the base body 151. It can be secured.

The second wear compensation unit 150 is formed so that the length of the second guide body 153c is relatively longer than the length of the second guide body 153c and passes through the body 131 of the first wear compensation unit 130. It is possible to provide rotational force for smooth one-way rotation of the base body 151.

Hereinafter, the operating principle of the wear compensation device for a clutch actuator of a vehicle according to the present invention will be described with reference to FIGS. 1 and 2 described above.

Figure 3 is a schematic diagram illustrating the principle of mutual interference between the first wear compensation unit and the second wear compensation unit in the wear compensation device for the clutch actuator of a vehicle according to an embodiment of the present invention, and Figure 4 is an embodiment of the present invention. This is a diagram to explain the operation relationship for compensating wear due to mutual interference between the first wear compensation unit and the second wear compensation unit.

The wear compensation device 100 for a vehicle clutch actuator according to the present invention includes a housing 110, a first wear compensation unit 130, and a second wear compensation unit of the clutch actuator to prevent malfunction of the vehicle by compensating for wear of the clutch. Includes part 150.

The housing 110 is a first motor that compensates for the stroke setting position of the output rod 30 so that the gap due to wear of the output rod 30 and the clutch disk, which reciprocates linearly along the axial direction for operation of the clutch, is maintained constant. The wear compensation unit 130 and the second wear compensation unit 150 are built-in.

The first wear compensation unit 130 is built into the housing 110 of the clutch actuator, and the body 131 and the guide protrusion 133 adjust the setting position for the linear reciprocating movement of the output rod 30 when the clutch actuator operates. ) is provided.

The second wear compensation unit 150 is coupled to the output rod 30 and built into the housing 110 of the clutch actuator, and is linked to the reciprocating linear movement of the output rod 30 to rotate the first wear compensation unit 130. A base body 151 and a guider 153 are provided to enable passage.

The wear compensation device 100 for the clutch actuator of a vehicle is configured to separate the guide protrusion 133 of the first wear compensation unit 130 and the second wear compensation unit 130 when the second wear compensation unit 150 passes through the first wear compensation unit 130. Physical interference occurs due to the guider 153 of the compensation unit 150.

The second wear compensation unit 150 is arranged so that the guide members (153-1 to 153-7) are shifted on the circumferential surface of the base body 151, and the second wear compensation portion (153-1 to 153-7) is End surfaces 153d that extend obliquely toward the end of the guide body 153c and face each other are formed.

The second wear compensation unit 150 enables one-way rotation of the base body 151 by mutual interference between the guide protrusion 133 and the guide members 153-1 to 153-7.

As shown in FIG. 3(a), the second wear compensation unit 150 is inserted into the first wear compensation unit 130 and some guide members 153-1, 153-3, and 153-5 of the guider 153. and the guide protrusion 133 are in contact.

3(b) and 3(c), the second wear compensation unit 150 passes through the first wear compensation unit 130, and some guide members 153-2, 153-4, and 153- As the first guide body 153a and the second guide body 153c of 6) contact each other in response to the guide protrusion 133, movement of some of the guide members 153-2, 153-4, and 153-6 progresses. Accordingly, one-way rotation of the base body 151 can be implemented.

As shown in FIG. 4, the wear compensation device 100 for the clutch actuator of a vehicle has a second wear compensation unit 150 interlocked with the output rod 30 when the clutch actuator is operated. While passing through the hole 131a, a wear compensation operation can be performed based on the principle of FIG. 3 described above.

The wear compensation device 100 for the clutch actuator of a vehicle moves the second wear compensation unit 150, which is linked with the output rod 30, in a straight line in one direction relative to the axial direction, and the hollow hole (130) of the first wear compensation unit 130 It passes through 131a) and has a first rotation to compensate for wear.

The wear compensation device 100 for the clutch actuator of a vehicle rotates the first wear compensation unit 130 according to the return operation of the output rod 30 after the second wear compensation unit 150 undergoes the first rotation. It passes through the retraction process and has a second rotation (rotation force in the same direction as the first rotation) to compensate for wear.

The wear compensation device 100 for the clutch actuator of a vehicle is formed to extend obliquely toward the end with the guiders 153 of the second wear compensation unit 150 arranged in a misaligned manner, so that the body of the first wear compensation unit 130 ( Since one-way rotation of the base body 151 passing through 131) is possible, all stroke sections between the first and second rotations are implemented as compensation for wear, thereby reducing the number of unnecessary operations.

As a result, the wear compensation device 100 for the clutch actuator of a vehicle operates the clutch actuator through mutual interference of the first wear compensation unit 130 and the second wear compensation unit 150 built into the housing 110 of the clutch actuator. It has the effect of compensating for wear that may occur during operation.

The wear compensation device 100 for a vehicle's clutch actuator includes a first wear compensation unit 130 having a body 131 and a plurality of guide protrusions 133, and a second wear compensation unit 150 having a base body 151. ) and a plurality of guiders 153, so that the base body 151 can rotate in only one direction due to mutual interference between the guide projections 133 and the guider 153 while passing through the body 131, so that the clutch Since the number of operations to compensate for wear is reduced, the vehicle's durability and operational reliability can be improved by simplifying the process.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: operating lever 30: output load
31: transfer pipe 32: link member
33: operating shaft 34: screw
35: rod member 35a: end of rod member
100: Wear compensation device for vehicle clutch actuator
110: Clutch actuator housing 111: Guide tube
113: Receiving groove 130: First wear compensation unit
131: body 131a: hollow hole
133: guide protrusion 135: catching portion
150: second wear compensation unit 151: base body
153: Guider
153-1 to 153-7: Guide member 153a: First guide body
153b: first guide surface 153c: second guide body
153d: end surface 153e: second guide surface
153f: Third guide surface

Claims (5)

Housing of the clutch actuator;
a first wear compensation unit built into the housing and adjusting a set position for linear movement of the output rod when the clutch actuator operates; and
a second wear compensation unit built in the housing and interlocked with the output rod to rotatably pass through the first wear compensation unit;
A wear compensation device for a clutch actuator of a vehicle, comprising:
According to claim 1,
The first wear compensation unit,
a body fixed on the same axis of the housing and mutually interfering with the second wear compensation unit so that the second wear compensation unit rotatably passes therethrough; and
a plurality of guide protrusions that protrude along the inner peripheral surface of the body and interfere with the rotation of the second wear compensation unit;
A wear compensation device for a clutch actuator of a vehicle, characterized in that it has a.
According to claim 2,
The housing has a receiving groove formed on the inside,
A wear compensation device for a clutch actuator of a vehicle, characterized in that the body is formed with a locking portion protruding in one direction along the circumferential surface and coupled to the receiving groove.
According to claim 2,
The second wear compensation unit,
a base body coupled to the screw of the output rod; and
a plurality of guiders disposed along the circumferential surface of the base body to guide rotation of the base body by interference with the guide protrusion;
A wear compensation device for a clutch actuator of a vehicle, characterized in that it has a.
According to claim 4,
The guider is a wear compensation device for a clutch actuator of a vehicle, characterized in that the guiders are each arranged at an angle so that the base body rotates in one direction when passing the body and extends obliquely toward the ends facing each other.

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