KR101766528B1 - Clutch actuator - Google Patents

Abstract

The present invention relates to a clutch actuator for compensating for wear of a clutch disc, and more particularly, to a clutch actuator that includes a drive shaft, a drive unit that generates a rotational force, a slider that is linearly coupled to the drive shaft, An operating rod connected to the fork and operating the clutch actuator fork while linearly moving; an operating lever connected to the slider, rotatably coupled to the housing and rotated by reciprocating movement of the slider, And an actuating rod moving unit provided on the actuating rod for moving the actuating rod toward the actuating lever upon abrasion of the clutch disc.

Description

CLUTCH ACTUATOR [0002]

The present invention relates to a clutch actuator, and more particularly, to a clutch actuator capable of compensating for wear of a clutch disk.

Generally, the manual transmission is operated by the driver pressing the clutch pedal, so that the inflow generated from the clutch master cylinder transmits the force through the tappet of the clutch release cylinder, and the force transmitted through the tappet pushes the clutch release fork in the axial direction As a result of this movement, the force is transmitted to the clutch diaphragm spring.

The clutch is disposed between the engine and the transmission. The clutch is connected between the engine-side flywheel and the transmission input shaft so as to transmit or block the rotational force of the engine to the transmission.

However, in the case of the clutch pedal and the hydraulic cylinder, it is troublesome for the driver to operate the clutch pedal directly, and the driving feeling and the driving stability are greatly influenced by the skill of the driver. Thus, recently, an automatic manual transmission and a double clutch transmission It is a trend that is being used.

At this time, the clutch interrupting action in the automatic type manual transmission and the double clutch transmission is performed by the clutch actuator, and an example of this clutch actuator is disclosed in Korean Patent Laid-Open No. 10-2012-0011527 (Patent Document 1).

Meanwhile, the clutch is used as a means for interrupting the power at the time of shifting in the course of transmitting the power of the engine to the wheels through the transmission. The clutch is disposed on one side of the flywheel provided on the crankshaft of the engine and on one side of the transmission input shaft And the power is transmitted by the frictional force.

The clutch disc of such a clutch is provided with a friction material for generating a frictional force, which causes severe wear due to repeated intermittent action of the clutch, and this disc wear has a problem that the operation of the clutch operated by the clutch actuator is incomplete .

In order to prevent the clutch from being incompletely operated, it is necessary to adjust the clearance of the clutch.

Korean Patent Publication No. 10-2012-0011527

It is therefore an object of the present invention to provide a clutch actuator capable of compensating wear of a clutch by adjusting the length of an operating rod exposed to the outside of the housing for adjusting clutch clearance.

According to an aspect of the present invention, there is provided a driving apparatus for a vehicle including a driving shaft, a driving unit for generating a rotational force, a slider coupled to the driving shaft so as to be linearly moved, An operating lever connected to the slider and rotatably coupled to the housing, the operating lever being rotated when the slider is reciprocated to linearly move the operating rod; and an operating lever provided between the operating rod and the operating lever And an operating rod moving unit for moving the operating rod to the operating lever when the clutch disc is worn, wherein the operating rod moving unit includes: a guide member screwed to the outer circumferential surface of the operating rod; Is caught by the end of the operating lever which is moved up and down, And a guide member rotating unit provided on the housing and the guide member for pressing and rotating the guide member when the operating rod is moved toward the operating lever when the clutch disc is worn .

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The guide member rotating unit includes a plate member coupled to the housing, a pressing member protruding from the plate member toward the guide member, having a resilient force, and an engaging groove engaged with an end of the pressing member, And an engaging portion formed on the base.

It is preferable that the engaging portion is formed of a gear portion formed on the end portion of the guide member facing the operation lever side and formed of a plurality of gear teeth so that the end portion of the urging member is engaged.

It is preferable that the plurality of gear teeth are formed such that an end portion of the pressing member is engaged when the guide member is rotated in one direction and inclined so that the end portion of the pressing member is slid when the guide member is rotated in the opposite direction to the rotation direction.

According to the present invention, when the wear of the clutch disc occurs when wear of the clutch disc occurs, the guide member, which is moved toward the operating lever together with the operating rod during operation of the clutch by the operating rod and the guide member rotating unit provided in the housing, By moving to the operating lever, wear of the clutch disc is compensated.

Further, the manufacturing and maintenance cost can be reduced with a simple structure, and the vehicle can be manufactured compactly, thereby contributing to the weight saving of the vehicle.

1 is a cross-sectional view of a clutch actuator according to an embodiment of the present invention;
2 is a perspective view showing the working rod and the working rod moving unit in the clutch actuator of FIG.
3 is an exploded perspective view of Fig.
Fig. 4 is a view showing an operating state of the guide member rotating unit when the wear compensation operation of the clutch disc is performed in the clutch actuator of Fig. 1; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the 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 the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a cross-sectional view showing a clutch actuator according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an operating rod and a working rod moving unit in the clutch actuator of FIG. Fig. 3 is an exploded perspective view of Fig. 2, and Fig. 4 is a view showing an operating state of the guide member rotating unit when the wear compensation operation of the clutch disc is performed in the clutch actuator of Fig.

1, a clutch actuator according to an embodiment of the present invention includes a housing 100, a driving unit 110, an operating rod 130, a slider 120, an operating lever 140, an operating rod moving unit 200 ).

First, the housing 100 constitutes the outer shape of the clutch actuator, and an installation space is formed on the inner side, and a plurality of component parts are configured to be operatively combined with each other in the installation space.

The driving unit 110 generates a rotational force and is composed of a motor provided with a driving shaft 111. The motor is coupled to one side of the housing 100, and the drive shaft 111 is disposed in the installation space.

The operating rod 130 extends outwardly of the housing 100 and is connected to a clutch actuator fork (not shown), and operates the clutch actuator fork while linearly moving by the power generated in the driving unit 110. That is, one end of the operating rod 130 protrudes through one side of the housing 100 to be connected to the clutch actuator fork, and the other end is configured to move linearly by the operating lever 140, which will be described later.

The slider 120 is linearly movably coupled to the driving shaft by driving the driving unit 110, and one end of the slider 120 is connected to an operation lever 140, which will be described later.

One end of the operation lever 140 is pivotally hinged to the housing 100, and an intermediate portion thereof is engaged with one end of the slider 120. That is, the actuating lever 140 is rotated by the linear movement of the slider 120 with one end thereof turned as a hinge, and the other end is reciprocated up and down to linearly move the actuating rod 130.

One end of the operation lever 140 is hinged to the housing 100 about the bent portion and the other end of the operation lever 140 is fixed to the housing 100 And causes the actuating rod 130 to linearly move during rotation.

The operation rod moving unit 200 is provided in the operation rod 130 to move the operation rod 130 toward the operation lever 140 when wear of the clutch disc (not shown) occurs. The guide rod 210, An engaging member 220, and a guide member rotating unit 230.

The guide member 210 is formed in the shape of a pipe passing through both ends and screwed to the operation rod 130 and rotated on the outer peripheral surface of the operation rod 130. That is, the inner circumferential surface of the guide member 210 and the outer circumferential surface of the operating rod 130 are respectively formed with helix portions. When the guide member 210 is rotated, the operating rod 130 is linearly moved.

One end of the engaging member 220 is coupled to the outer side of the guide member 210 and the other end of the engaging member 220 is engaged with the actuating lever 140 to rotate with one end of the actuating lever 140 as a hinge, Is moved to the operation lever 140 side.

The guide member rotating unit 230 is provided in the housing 100 and the guide member 210 so that when the engaging member 220 coupled to the operating rod 130 is moved toward the operating lever 140 The guide member 210 is pressed and rotated to move the guide member 210 coupled to the operation rod 130 toward the operation lever 140.

The guide member rotating unit 230 includes a plate member 231 coupled to the housing 100, a pressing member 232 protruding from the plate member 231 toward the guide member 210 and having elasticity, And a gear portion 233 formed of a plurality of gear teeth so as to engage the end portion of the pressing member 232. The gear portion 233 is formed at the end portion of the guide member 210,

The plurality of gear teeth constituting the gear portion 233 are engaged with the end portions of the pressing members 232 in either one direction along the rotation direction of the guide member 210 and the end portions of the pressing members 232 are slid in the other direction So as to be inclined in any one rotation direction.

The pressing member 232 is formed to protrude from the plate member 231 toward the gear teeth of the guide member 210 and has an inclination in the same direction as the inclination of the gear teeth. That is, the pressing member 232 is engaged with the gear portion 233 of the guide member 210 when the guide member 210 is moved toward the operating lever 140 together with the operating rod 130 when wear of the clutch disc occurs And is configured to rotate the guide member 210 while being pressed while the pressing member 232 is inclined. When the clutch operation is released and the operation rod 130 is moved to the home position, the urged urging member 232 is returned to the original state of the inclination by the elastic force.

The operation of the clutch actuator according to an embodiment of the present invention having the above-described structure will be briefly described.

First, when the clutch for shifting is operated during driving, the driving unit 110 is driven.

The slider 130 is moved along the drive shaft 121 in the direction opposite to the drive unit 110 in FIG. 1 so as to press the upper portion of the bent portion of the operation lever 140, (140).

At this time, the operation lever 140 rotates with one end thereof as a hinge, while the other end moves downward to move the operation rod 130 toward the operation lever 140.

Thus, when the operating rod 130 moves toward the operating lever 140, the clutch actuator fork connected to the operating rod 130 presses the diaphragm spring of the clutch with the actuation bearing to perform the clutch action.

Thereafter, when the operation of the clutch is released, the reaction force of the diaphragm spring of the clutch causes the clutch actuator fork to move to the home position. At this time, the operating rod moves linearly toward the opposite side of the operating lever.

At this time, when wear occurs on the clutch disc, the pressing force of the clutch actuator fork to press the diaphragm spring of the clutch with the actuation bearing becomes weak, and the operation of the clutch becomes incomplete.

When the operating rod 130 is moved toward the operating lever 140 together with the guide member 210 during operation of the clutch actuator as described above, The guide member 210 moves to the operating lever 140 as much as the clutch disc is worn.

When the guide member 210 coupled to the operation rod 130 is moved toward the operation lever 140, the guide member rotation unit 230 is inserted into the gear portion 233 of the guide member 210, The pressing member 232 rotates the guide member 210 while being pressed and attached, as shown in FIG. 5, after the end of the pressing member 232 is hooked. Then, the guide member 210 screwed to the operation rod 130 is rotated and moved to the operation lever 140 by a predetermined distance.

That is, as the guide member 210, which moves together with the operating rod 130 during the clutch operation, is moved by the worn amount of the clutch toward the operating lever 140, the force for pressing the diaphragm spring of the clutch by the clutch actuator fork So that the clutch operates normally.

The clutch actuator having the above-described structure is configured such that when the operating rod is moved toward the operating lever by the operating rod 130 and the guide member rotating unit 230 provided in the housing 100 when the clutch disc wears, Is moved by the unit 230 as much as the wear of the clutch disc, thereby compensating for wear of the clutch disc.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

100: Housing
110: driving part 111:
120: Slider
130: Operation rod
140: Operation lever
200: operation rod moving unit 210: guide member
220:
230: guide member rotating unit 231: plate member
232: pressing member
233:

Claims (5)

A drive unit provided with a drive shaft and generating a rotational force;
A slider coupled to the drive shaft so as to be linearly moved;
An actuating rod, one end of which extends outwardly of the housing and is connected to the clutch actuator fork, for actuating the clutch actuator forks in a linear motion;
An operating lever connected to the slider and rotatably coupled to the housing, the operating lever being rotated when the slider reciprocates, thereby linearly moving the operating rod;
And an operating rod moving unit provided between the operating rod and the operating lever for moving the operating rod toward the operating lever upon wear of the clutch disk,
The operation rod moving unit includes:
A guide member screwed to an outer peripheral surface of the operation rod;
An engaging member which is engaged with an end of an operating lever whose one end is opened and the other end is moved up and down and is moved toward the operating lever when the operating lever is rotated;
And a guide member rotating unit provided on the housing and the guide member for pressing and rotating the guide member when the operating rod is moved toward the operating lever when the clutch disc is worn.
delete The method according to claim 1,
In the guide member rotating unit,
A plate member coupled to the housing;
A pressing member protruding from the plate member toward the guide member and having an elastic force;
An engaging portion formed at an end of the guide member and having an engaging groove engaged with an end portion of the pressing member;
And a clutch actuator.
The method of claim 3,
However,
And a gear portion formed on the end portion of the guide member facing the operation lever side and formed by a plurality of gear teeth so that the end portion of the pressure member is engaged.
The method of claim 4,
The plurality of gear teeth,
Wherein an end of the pressing member is engaged when the guide member is rotated in one direction and is inclined so that an end portion of the pressing member is slid when the guide member is rotated in the opposite direction to the rotating direction.

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