KR101865730B1 - Clutch actuator having abrasion compensation device - Google Patents

Abstract

A clutch actuator unit with a wear-compensating device is disclosed.
The clutch actuator unit including the wear compensation device according to the embodiment of the present invention is characterized in that the clutch actuator unit includes an inner member, an outer member formed with an inner member groove into which a leading end of the inner member is inserted, A housing having an outer member groove to be inserted therebetween; a housing interposed between both inner side surfaces of the outer member groove and both outer surfaces of the outer member, the housing being rotatably fixed to the housing, A push rod connected to a distal end portion of the outer member, a push rod arranged to push or pull the housing, and the housing, the inner member, the outer member, And an actuator for bringing the clutch disc into close contact with the flywheel through the push rod, Inlets arranged on the side, in a state wherein the actuator is pulled toward the rear of the housing may include a fixing member to prevent the inner member is retracted to prevent the inner member is separated from the outer member.

Description

CLUTCH ACTUATOR HAVING ABRASION COMPENSATION DEVICE < RTI ID = 0.0 >

The present invention relates to a clutch actuator unit having a wear compensation device capable of mechanically compensating wear of a clutch to stably remove a wear clearance of the clutch, thereby improving the torque transmission efficiency of the clutch and improving the operational stability.

Generally, the clutch of the vehicle manual transmission is converted into the speed change mode by bringing the clutch disk into close contact with the flywheel by the pressing plate, transmitting power, and disengaging the clutch disk.

Accordingly, when the driver depresses the clutch pedal, the operating force is transmitted to the operating fork to release the clutch by moving the clutch release bearing.

In the case of a clutch used for an automatic manual transmission or a dual clutch transmission, the clutch is operated by operating the operation fork through an electronic actuator using a motor as a drive source. Thus, A shift operation is implemented.

In this connection, an " electric motor clutch actuator structure (Patent Laid-Open Publication No. 10-2007-037193) "

In this prior art, when an electric signal is given to the clutch actuator unit, the signal is received by the clutch actuator unit to rotate the motor, and the spiral roller cam is moved to the lead screw-connected center of the motor shaft to push up the lever.

Then, the release bearing in contact with the end portion of the lever is pushed, and the engagement force transmitted to the diaphragm spring and the pressure plate of the clutch is increased to strongly push the clutch disc so that the driving force is transmitted between the engine and the transmission.

However, in this conventional technology, when the face of the pressing plate or the clutch disc is worn due to the repeated shifting action of the clutch disc, the free distance F of the clutch disc increases, .

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

Patent Application No. 10-2013-0086441 Patent Laid-Open Publication No. 10-2007-037193

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clutch actuator unit having a wear compensation device capable of automatically compensating wear of a clutch generated in the process of transmitting a rotational force from an engine to a transmission to reduce an impact upon shifting, .

The clutch actuator unit including the wear compensation device according to the embodiment of the present invention is characterized in that the clutch actuator unit includes an inner member, an outer member having an inner member groove formed therein for receiving a tip portion of the inner member, A pair of outer side grooves formed on the inner side surfaces of the outer member grooves so as to be rotatable between the inner side surfaces of both side surfaces of the outer member groove and both outer surfaces of the outer member, A push rod connected to a distal end portion of the outer member, a push rod arranged to push or pull the housing, and the housing, the inner member, the outer member, the inner member, And an actuator for bringing the clutch disc into close contact with the flywheel through the push rod, It may include being disposed at the US side, in a state wherein the actuator is pulled toward the rear of the housing a holding member to prevent the inner member isolated from the outer member to prevent the inner member retracted.

Rails may be formed on the outer surface of the outer member at both sides thereof in contact with the rollers.

A slope portion is formed rearwardly of each of the rails, and a height of the slope portion is gradually decreased toward the rear of the outer member.

A diaphragm spring arranged to be pressed by one side of the release bearing, and a diaphragm spring disposed on the other side of the diaphragm spring so as to be pressed by the release bearing, wherein the diaphragm spring has a fixed pivot, a fork arranged to move around the pivot by the push rod, And a pressing plate disposed on the other side and arranged to press the clutch disc against one surface of the flywheel.

And a clutch cover connected to the flywheel and disposed to surround one side of the pressure plate and the diaphragm spring from the outside.

And a control unit configured to control the actuator according to driving conditions so that the clutch disc closely contacts the flywheel.

The controller controls the actuator according to the driving condition to retract the housing to reach a state in which the rear end face of the inner member is supported by the fixing member and to release the outer member to the outside of the housing , The press roller is separated from the outer member, and the housing is advanced to relatively insert the inner member into the inner member groove.

The housing is retracted and the outer member is retracted by the elastic force of the diaphragm in a state where the housing and the outer member are separated from each other so that the clearance between the clutch disk and the flywheel can be removed.

The wear compensation apparatus according to an embodiment of the present invention includes an inner member, an outer member formed with an inner member groove into which a distal end of the inner member is inserted, and an outer member groove into which a rear end of the outer member is inserted together with the inner member And an inner surface of the outer member and an inner surface of the inner member, the inner surface of the outer member, and the outer surface of the outer member, A push rod connected to a distal end of the outer member, a push rod arranged to push or pull the housing, and moving together with the housing, the inner member, the outer member, and the push rod And an actuator disposed on a rear side of the inner member, And a fixing member for preventing the inner member from being separated from the outer member by preventing the inner member from being retracted while being pulled toward the inner member.

And rails may protrude from the outer surface of the outer member on the outer surface in contact with the rollers.

1, an inclined portion is formed rearwardly of the rail, and a height of the inclined portion gradually decreases toward the rear of the outer member.

The actuator may use a rotational force of the motor, pneumatic pressure, or hydraulic pressure to push or pull the housing.

The vehicle according to the embodiment of the present invention may include an actuator unit having the wear compensation device, and an engine for transmitting rotational force to the flywheel of the actuator unit.

According to the present invention for achieving this object, it is possible to mechanically compensate the stroke of the push rod to compensate for the wear of the clutch disc in a transmission using the clutch disc, to improve the torque transmission efficiency of the clutch, And the slip feeling of the clutch can be stably controlled.

In addition, unlike the conventional wear compensating apparatus, it is possible to compensate the stroke only by the amount of wear by using the mechanical coupling structure, and to improve the reliability and stability of the wear compensating apparatus without using any complicated control logic.

1 is a schematic diagram showing a state before a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention is operated.
FIG. 2 is a schematic diagram showing a state after a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention is operated. FIG.
3 is a schematic view showing a state after wear generation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.
4 is a schematic view showing a state before wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.
5 is a schematic diagram showing a first step of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.
6 is a schematic diagram showing a second stage of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.
7 is a schematic diagram showing a state in which wear compensation is completed in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.
FIG. 8 is a schematic view showing an operating state after completion of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention. FIG.

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

It is to be understood, however, that the present invention is not limited to the illustrated embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention. .

In order to clearly illustrate the embodiments of the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the entire specification.

In the following description, the names of the components are denoted by the first, second, etc. in order to distinguish them from each other because the names of the components are the same and are not necessarily limited to the order.

1 is a schematic diagram showing a state before a clutch actuator unit unit having a wear compensation apparatus according to an embodiment of the present invention is operated.

1, the clutch actuator unit includes a control unit 200, an actuator 150, an actuator rod 145, a fixing member 197, a housing 190, an outer member groove 195, a press roller 180, The inner member 170, the push rod 140, the fork 135, the pivot 125, the release bearing 130, the outer member 160, the outer member 160, the inner member groove 165, A diaphragm spring 120, a clutch cover 110, a pressing plate 115, a clutch disc 105, a rotational center shaft 132, and a flywheel 100. [

The flywheel 100 and the clutch cover 110 are rotatably disposed with respect to the rotation center shaft 132. The clutch disc 105 is selectively in close contact with one surface of the flywheel 100, (Not shown) to the flywheel 100 to the clutch disc 105 selectively. Here, the clutch disk rotates about the rotation center shaft 132 and transmits the rotational force to the input shaft (not shown) of the transmission.

The outer end of the diaphragm spring 120 is supported inside the clutch cover 110 and the clutch disc 105 is resiliently brought into close contact with one surface of the flywheel 100 through the pressing plate 115 .

One end of the fork 135 is supported by the pivot 125 and the other end is supported by the push rod 140. The fork 135 is supported by the push rod 140 And pushes the inside of the diaphragm spring 120 through the release bearing 130. Therefore, the urging force of the diaphragm spring 120 to bring the clutch disc 105 into close contact with the flywheel 100 through the pressing plate 115 is removed.

In the embodiment of the present invention, the outer member 160 is formed with an inner member groove 165 that is opened rearward, and the tip of the inner member 170 is inserted into the inner member groove 165.

The push rod 140 is connected to the distal end of the outer member 160. A rail 175 protrudes from both sides of the outer member 160. The height of the push rod 140 is gradually increased toward the rear of the rail 175 An inclined portion 185 is formed.

The rear end of the outer member 160 is inserted into the outer member groove 195 and the outer member groove 195 is formed on the inner surface of the outer member groove 195, The press roller 180 is interposed between the outer surface of the outer member 160 and the outer surface of the outer member 160.

The press roller 180 is interposed between the rail 175 and the inner surface of the outer member groove 195 and the press roller 180 is pressed against the inner surface of the housing 190 And one side protrudes from the inner side.

The actuator rod 145 is connected to the rear of the housing 190 and the actuator 150 can push the housing 190 forward or backward through the actuator rod 145.

A fixing member 197 is fixedly disposed on the rear of the housing 190 in addition to the housing 190 and the actuator rod 145. The fixing member 197 is fixed to the rear of the inner member 170 And is disposed at a set position.

The fixing member 197 prevents the inner member 170 from retracting from the set position, and the position of the fixing member 197 can be changed according to design specifications.

The press roller 180 presses both sides of the outer member 160 in the center direction to press the outer member 160 between the inner surface of the inner member groove 165 of the outer member 160 and the outer surface of the inner member 170 Thereby forming a frictional force.

FIG. 2 is a schematic diagram showing a state after a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention is operated. FIG.

Referring to FIG. 2, the control unit 200 receives the driving condition and controls the rotating force source 205 according to the received driving condition to operate the actuator 150.

In an embodiment of the present invention, a rotational force source 205, such as a motor, is provided to actuate the actuator 150, and pneumatic or hydraulic pressure may be used instead of a rotational force source, depending on the embodiment. Thus, the torque source may be referred to as a driving force source that provides a driving force to the actuator.

When the actuator 150 pushes the housing 190 through the actuator rod 145 the inner surface of the housing 190 pushes the rear surface of the inner member 170 and the inner member 170 pushes the outer surface Pushes the member 160 forward, and the outer member 160 pushes the lower end of the push rod 140 forward.

When the lower portion of the push rod 140 is pushed forward, the fork 135 rotates about the pivot 125 and the inner side of the diaphragm spring 120 moves forward And the outer side of the diaphragm spring 120 moves backward.

Accordingly, the pressing plate 115 moves backward together with the diaphragm spring 120 to remove the adhesion between the clutch disc 105 and the flywheel 100, and the rotational force of the flywheel 100 is transmitted to the clutch disc 105. [ (Not shown).

FIG. 3 is a schematic view showing a state after occurrence of wear in a clutch actuator unit having a wear compensating apparatus according to an embodiment of the present invention, and characteristic differences compared to FIGS. 1 and 2 will be mainly described.

Referring to FIG. 3, friction wear occurs between the flywheel 100 and the clutch disc 105, and the pressing plate 115 moves forward according to the wear amount.

Accordingly, the outer side of the diaphragm spring 120 moves forward, and the inner side moves backward, so that the lower end of the fork 135 moves backward.

FIG. 4 is a schematic view showing a state before wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention, and characteristic differences compared to FIGS. 1 to 3 will be mainly described.

4, the lower end of the fork 135 is moved backward by the coupling structure of the housing 190, the inner member 170, the outer member 160, and the push rod 140 Excessive slip may occur between the flywheel 100 and the clutch disc 105 if a gap is created between the clutch disc 105 and the flywheel 100 or the adhesion is weakened.

Accordingly, the wear compensation apparatus according to the embodiment of the present invention is operated, and the operation of moving the push rod 140 rearward is performed.

5 is a schematic diagram showing a first step of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.

5, the controller 200 controls the rotational force source 205 to drive the actuator 150 and the actuator 150 is coupled to the housing 190 ) To the rear.

The rear end surface of the inner member 170 is brought into close contact with the front end surface of the fixing member 197 to prevent the inner member 170 from moving and in a state where the movement of the inner member 170 is fixed, The housing 190 further moves backward by the actuator 150. [ Thus, the outer member 160 is detached from the housing 190.

6 is a schematic diagram showing a second stage of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.

6, the resilient restoring force of the diaphragm pushes the lower end of the fork 135 rearward through the release bearing 130 and the lower end of the fork 135 pushes the interposing rod 140 backward .

The outer member 160 and the push rod 140 move backward with respect to the inner member 170. That is, the tip of the inner member 170 is further inserted into the inner member groove 165 of the outer member 160. [

Accordingly, the total distance between the push rod 140 and the inner member 170 is reduced.

7 is a schematic diagram showing a state in which wear compensation is completed in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention.

Referring to FIG. 7, the controller 200 operates the actuator 150 through the rotational force source () to move the housing 190 forward.

The rear end of the outer member 160 is inserted into the outer member groove 195 of the housing 190 and the press roller 180 moves along the inclined portion 185 to be seated on the rail 175 And the inner surface of the housing 190 contacts the rear surface of the inner member 170.

The press roller 180 presses both outer surfaces of the outer member 160 to form a frictional force between the outer member 160 and the inner member 170 and the wear compensation is completed.

FIG. 8 is a schematic view showing an operating state after completion of wear compensation in a clutch actuator unit having a wear compensation apparatus according to an embodiment of the present invention. FIG.

8, the controller 200 actuates the actuator 150 through the rotational force source 205 and pushes the housing 190 forward through the actuator rod 145. Referring to FIG.

When the actuator 150 pushes the housing 190 through the actuator rod 145 the inner surface of the housing 190 pushes the rear surface of the inner member 170 and the inner member 170 Pushes the outer member 160 forward, and the outer member 160 pushes the lower end of the push rod 140 forward.

When the lower portion of the push rod 140 is pushed forward, the fork 135 rotates about the pivot 125 and the inner side of the diaphragm spring 120 moves forward And the outer side of the diaphragm spring 120 moves backward.

Accordingly, the pressing plate 115 moves backward together with the diaphragm spring 120 to remove the adhesion between the clutch disc 105 and the flywheel 100, and the rotational force of the flywheel 100 is transmitted to the clutch disc 105. [ Lt; / RTI >

8, when the actuator 150 pulls the actuator rod 145 backward, the clutch disc 105 is tightly brought into close contact with the flywheel 100 by the diaphragm spring 120, It can be transmitted stably.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: Flywheel 105: Clutch disc
110: clutch cover 115: pressure plate
120: diaphragm spring 125: pivot
130: Release bearing 132:
135: fork 140: push rod
145: actuator rod 150: actuator
160: outer member 165: inner member groove
170: inner member 175: rail
180: press roller 185:
190: housing 195: outer member groove
197: fixing member 200:
205: Torque source

Claims (13)

An outer member formed with an inner member groove into which a distal end portion of the inner member is inserted;
A housing having an outer member groove into which a rear end of the outer member is inserted together with the inner member;
And an outer surface of the outer member, the outer member being provided between the inner surface of the outer member and the outer surface of the outer member, the outer member being rotatably fixed to the housing and pressing both outer surfaces of the outer member, A pressing roller that forms a frictional force that is set to the pressing roller;
A push rod connected to a distal end of the outer member;
An actuator disposed to push or pull the housing, the actuator bringing the clutch disc into close contact with the flywheel through the housing, the inner member, the outer member, and the push rod; And
A fixing member disposed on the rear side of the inner member and preventing the inner member from being separated from the outer member by preventing the inner member from retracting in a state in which the actuator pulls the housing backward; Lt; / RTI >
The outer member has rails formed on both outer surfaces of the outer member in contact with the press roller,
Fixed pivot;
A fork positioned to move about said pivot by said pushrod;
A release bearing arranged to move by the fork;
A diaphragm spring disposed so that one side is pressed by the release bearing;
A pressing plate disposed on the other side of the diaphragm spring and arranged to press the clutch disc against one surface of the flywheel; And
And a controller configured to control the actuator according to driving conditions so that the clutch disc closely contacts the flywheel,
Wherein,
The actuator is controlled to retract the housing in accordance with the operating condition so as to reach a state in which the rear end surface of the inner member is supported by the fixing member, the outer member is released to the outside of the housing, Separates from the outer member,
Wherein the housing is advanced to relatively insert the inner member into the inner member groove at a predetermined distance. delete The method according to claim 1,
Wherein each of the rails is formed with an inclined portion rearwardly,
And the height of the inclined portion gradually decreases toward the rear of the outer member. delete The method according to claim 1,
A clutch cover connected to the flywheel and disposed to surround one side of the pressure plate and the diaphragm spring from outside;
Further comprising: a clutch actuator unit for driving the clutch actuator; delete delete The method according to claim 1,
The outer member is retracted by the elastic force of the diaphragm and the clearance between the clutch disc and the flywheel is removed when the housing is retracted and the housing and the outer member are separated from each other, Clutch actuator unit with compensation device. delete delete delete delete An actuator unit comprising a wear compensation device according to claim 1; And
An engine for transmitting a rotational force to the flywheel of the actuator unit;
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