KR101735459B1

KR101735459B1 - Release Device For Dual Clutch

Info

Publication number: KR101735459B1
Application number: KR1020150165666A
Authority: KR
Inventors: 장성만
Original assignee: 현대다이모스(주)
Priority date: 2015-11-25
Filing date: 2015-11-25
Publication date: 2017-05-15

Abstract

The present invention relates to a releasing device for a dual clutch, comprising a bearing guide having one end coupled to a clutch case side, a first release bearing movably coupled to the outside of the bearing guide for pressing the diaphragm spring of the first clutch, A second release bearing movably coupled to the inside of the guide to press the diaphragm spring of the second clutch, a release fork coupled at one end to the first release bearing and coupled to the clutch actuator at the other end, And a second bearing moving unit connected to the second release bearing for reciprocating the second release bearing in the opposite direction to the direction of movement of the first release bearing when the first release bearing is reciprocated in operation of the clutch actuator . Therefore, since the operation of the two clutches is made by the one bearing actuator and the second bearing moving unit connecting the first and second release bearings, compared to the prior art using two actuators for two clutch operations The weight can be reduced due to the reduction in the number of parts, thereby achieving weight saving and cost reduction of the vehicle.

Description

Release Device For Dual Clutch < RTI ID = 0.0 >

[0001] The present invention relates to a dual clutch release device, and more particularly, to a dual clutch release device capable of operating one fork and moving two release bearings in mutually opposite directions to press and operate each of the two diaphragm springs &Lt; / RTI >

The vehicle is provided with a speed change device for adjusting the speed of the vehicle during driving. Such a shift device is classified into a manual shift device operated by a driver and an automatic shift device automatically shifted in accordance with the running speed of the vehicle.

In recent years, a dual clutch transmission equipped with two power transmission clutches has been developed and its use is increasing.

In this dual-clutch transmission, one of the two power transmission clutches (hereinafter referred to as " first clutch ") is responsible for power transmission in the first, third, fifth, and seventh stages, ) Is responsible for the power transmission of the 2, 4, 6, R stages.

Therefore, when the first clutch is transmitting the power, the second clutch is kept in the disengaged state. When the second clutch is transmitting the power, the first clutch is kept disengaged and the first clutch and the second clutch One of the clutches of the second clutch transmits power. Such a dual clutch transmission device is disclosed in Korean Patent Laid-Open Publication No. Hei 10-2012-0069801 (Jun. 29, 2012).

The conventional dual-clutch transmission includes a first diaphragm spring that is pressurized by a first release bearing driven by a first actuator, and a second diaphragm spring which is in close contact with the pressure plate by a first diaphragm spring, A second diaphragm spring which is pressurized by a second release bearing driven by a second actuator, and a second diaphragm spring which is in close contact with the pressure plate by means of a second diaphragm spring, And a second clutch that transmits power.

That is, the first clutch transmits the first, third, and fifth-stage power, and the second clutch transmits the second, fourth and sixth power.

Therefore, at the first, third and fifth stages, the first release bearing applies pressure to the first diaphragm spring by driving the first actuator, so that the first clutch is brought into close contact with the pressure plate and the power is transmitted through the first clutch .

In the second, fourth, and sixth stages, during the post-diagnosis travel, the second release bearing applies pressure to the second diaphragm spring by driving the second actuator so that the second clutch is brought into close contact with the pressure plate, &Lt; / RTI >

However, the conventional dual clutch system for a vehicle as described above requires two actuators to operate the two clutches, thereby increasing the number of components and increasing the weight, and the control logic is complicated and the cost of the product is raised .

Korea Published Patent 2012-0069801 (June 29, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to reduce the number and weight of components and simplify the control logic by moving two bearings in opposite directions by one actuator, And it is an object of the present invention to provide a dual clutch release device capable of reducing manufacturing cost.

According to an aspect of the present invention, there is provided a bearing device comprising: a bearing guide formed in a cylindrical shape having a space inside and having one end coupled to a clutch case side; A second release bearing for pressing the diaphragm spring of the second clutch so as to be movable in the longitudinal direction of the bearing guide while being fitted to the inside of the bearing guide and for pressing the diaphragm spring of the first clutch; A release fork coupled at one end to the first release bearing and coupled to the clutch actuator at the other end; and a second release bearing coupled to the first and second release bearings for reciprocating the first release bearing during operation of the clutch actuator, The release bearing is moved in the opposite direction to the direction of movement of the first release bearing And a second bearing moving unit for reciprocating the first and second bearing units, wherein the second bearing moving unit has both ends thereof coupled through the first and second release bearings, And a guide plate formed of at least two or more bars formed to be slid.

It is also preferable that the second bearing moving unit is supported at the upper end of the bearing guide when the first release bearing is pulled or pressed by the clutch actuator.

delete

It is preferable that the slide plate is further provided with a slip prevention unit between the guide plate and the bearing guide for preventing the guide plate from slipping from the upper end of the bearing guide when the first release bearing is moved by the operation of the clutch actuator .

It is preferable that the non-slip unit includes an engagement groove formed in a guide plate which is in contact with an upper edge of the bearing guide, and a latching protrusion protruded from the upper edge of the bearing guide so as to be engaged with the engagement groove.

According to the present invention, since the operation of the two clutches is made by the one bearing actuator and the second bearing moving unit connecting the first release bearing and the second release bearing, two actuators are conventionally used The weight can be reduced due to the reduction in the number of components, thereby achieving weight saving and cost reduction of the vehicle.

1 is a side view showing a release device for a dual clutch according to an embodiment of the present invention,
2 is a cross-sectional view showing a first release bearing, a second release bearing and a second bearing moving unit in the dual clutch release device of FIG.
3 is a cross-sectional view showing the details of the mobile unit of FIG. 2;
4 and 5 are sectional views showing the operating state of the dual clutch releasing device of 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 perspective view showing a dual clutch releasing apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a first release bearing, a second release bearing, and a second bearing moving unit Fig. Fig. 3 is a cross-sectional view of the main part showing the mobile unit of Fig. 2 in detail. 4 and 5 are cross-sectional views showing an operating state of the dual clutch release device of FIG.

As shown in the drawings, a dual clutch release apparatus 100 according to an embodiment of the present invention includes a bearing guide 110, a first release bearing 120, a second release bearing 130, The first release bearing 120 and the second release bearing 130 are connected to each other so that the release fork 140 is moved forward and backward with respect to the moving direction of the first release bearing 120, And a second bearing moving unit 150 for moving the bearing 130 in the opposite direction.

The bearing guide 110 is formed in a cylindrical shape and has a flange portion 111 at one end thereof and is coupled to the clutch case side. The other end of the bearing guide 110 is disposed toward the diaphragm spring side of the clutch.

The first release bearing 120 is movably coupled to the outer side of the bearing guide 110 so as to be movable in the axial direction of the bearing guide 110 from the outside of the bearing guide 110 (Linear movement) of the diaphragm spring (not shown) of one of the two clutches. By way of example, the first release bearing 120 is configured to press the diaphragm spring of the first clutch.

That is, the first release bearing 120 is formed in a cylindrical shape and is formed to have a diameter larger than the diameter of the bearing guide 110, and is coupled through the outer side of the bearing guide 110.

The second release bearing 130 is movably coupled to the inside of the bearing guide 110 so that the second release bearing 130 is moved forward and backward in the axial direction of the bearing guide 110 from the inside of the bearing guide 110 during operation of the clutch actuator, And to press or release the pressure of the diaphragm spring of the remaining clutch among the clutches. By way of example, the second release bearing is configured to press the diaphragm spring of the second clutch.

That is, the second release bearing 130 is formed in a cylindrical shape and is formed to have a diameter smaller than the diameter of the bearing guide 110, and is inserted and coupled to the inside of the bearing guide 110.

The release fork 140 has one end hinged to the first release bearing 120 and the other end hinged to the clutch actuator, with the intermediate portion hinged to the peripheral portion of the clutch.

One end of the release fork 140 is formed in a Y-shape so as to be hinged to the outer peripheral surface of the first release bearing 120. That is, one end of the release fork 140 is hinged to both sides of the outer peripheral surface of the first release bearing 120 while partially covering the outer peripheral surface of the first release bearing 120.

The other end of the release fork 140 is hinged to the clutch actuator and is configured to be urged toward the clutch case or pulled toward the clutch actuator by operation of the clutch actuator.

The second bearing moving unit 150 may move the first release bearing 120 to the release fork 140 by connecting the first release bearing 120 and the second release bearing 130, The bearing 130 is linearly moved in the opposite direction to the direction of movement of the first release bearing 120. [

The second bearing moving unit 150 connects the first release bearing 120 and the second release bearing 130, and the center portion of the second bearing moving unit 150 is supported at the upper end of the bearing guide 110.

The second bearing moving unit 150 is coupled to the first and second release bearings 120 and 130 through the first and second release bearings 120 and 130, And at least two guide plates 151 formed to have a predetermined length and a predetermined width.

The at least two guide plates are provided in directions opposite to each other to prevent the second release bearing 130 from being biased toward one side when the first release bearing 120 is moved.

When the first release bearing 120 is moved by the operation of the clutch actuator, the guide plate 151 slides at the upper end of the bearing guide 110, And a slip prevention unit 152 for preventing slip.

The nonslip unit 152 includes an engagement groove 152a formed on a bottom surface of a guide plate 151 where both upper edges of the bearing guide 110 are in contact with each other and a bearing guide 110 inserted into the engagement groove 152a, And a latching protrusion 152b protruding upward from both upper edges of the latching protrusion 152b.

When the first release bearing 120 is reciprocated and the guide plate 151 is seated by the upper end of the bearing guide 110, the upper end of the bearing guide 110 It prevents the user from slipping.

The engaging groove 152a and the engaging projection 152b are formed so that the inside of the engaging groove 152a and the upper end of the engaging projection 152b are curved so that when the guide plate 151 seesaw, 152b of the engaging protrusion 152b.

The operation of the dual clutch releasing apparatus according to the embodiment of the present invention will be described briefly.

2, in which the clutch actuator is not operated in the release device 100 of the dual clutch.

That is, the upper ends of the first release bearings 120 and the second release bearings 130 are at the same position, and the upper ends of the first release bearings 120 and the second release bearings 130 are connected to each other, 130 is in a horizontal state as shown in FIG. 2 is referred to as an initial state.

Thereafter, when the vehicle starts to run, the control unit operates the clutch actuator to press the release fork 140.

4, the first release bearing 120 coupled to the release fork 140 is moved toward the diaphragm spring of the clutch so that one of the two clutch diaphragm springs (e.g., the diaphragm spring of the first clutch) So that the first clutch is operated. At this time, the second release bearing 130 is moved toward the clutch case when the first release bearing 120 moves toward the diaphragm spring.

Thereafter, when the running speed of the vehicle is increased, the control unit drives the clutch actuator for shifting to pull the release fork 140.

5, the second release bearing 130 coupled to the release fork 140 moves toward the clutch case and presses the remaining clutch diaphragm spring (for example, the diaphragm spring of the second clutch) of the two clutches 2 Activate the clutch. At this time, the first release bearing 120 is moved toward the clutch case when the second release bearing 130 moves toward the diaphragm spring.

Accordingly, the control unit repeatedly performs the operation of pulling and pressing the release fork 140 as described above while accelerating to a constant speed due to the running of the vehicle, so that the first release bearing 120 and the second release bearing 130, Is alternately moved toward the clutch diaphragm and the two clutch diaphragms are alternately pressurized to operate the first clutch and the second clutch to perform shifting.

According to the dual clutch release apparatus 100 according to the embodiment of the present invention as described above, the operation for pressing the two clutch diaphragm springs is performed by one clutch actuator, the first release bearing 120 and the second release bearing And the second bearing moving unit 150 connecting the first bearing moving unit 130 to the second bearing moving unit 150. Thus, the cost can be reduced because the number of parts is reduced.

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: Release device
110: bearing guide 111: flange portion
120: first release bearing
130: second release bearing
140: Release fork
150: second bearing moving unit
151: guide plate 152: anti-slip unit
152a: engaging groove 152b: engaging projection 2

Claims

A bearing guide formed in a cylindrical shape having a space inside and having one end coupled to the clutch case side;
A first release bearing fitted to the outside of the bearing guide and movably coupled in the longitudinal direction of the bearing guide to press the diaphragm spring of the first clutch;
A second release bearing fitted to the inside of the bearing guide and movably coupled in the longitudinal direction of the bearing guide to press the diaphragm spring of the second clutch;
A release fork coupled at one end to the first release bearing and coupled to the clutch actuator at the other end;
A second release bearing connected to the first release bearing and the second release bearing for reciprocating the first release bearing in operation of the clutch actuator and a second release bearing for reciprocating the second release bearing in the opposite direction to the direction of movement of the first release bearing, A bearing moving unit,
The second bearing moving unit includes:
And a guide plate formed of at least two or more guide bars formed at both ends of the first release bearing and the second release bearing so as to be slidably engaged with the first release bearing and the second release bearing And the second clutch is released.

The method according to claim 1,
The second bearing moving unit includes:
And the central portion of the first release bearing is supported by the upper end of the bearing guide when the first release bearing is pulled or pressed by the clutch actuator.

delete

The method according to claim 1,
And a slip prevention unit for preventing the guide plate from slipping from the upper end of the bearing guide when the first release bearing is moved by the operation of the clutch actuator is further provided between the guide plate and the bearing guide. Clutch release device.

The method of claim 4,
The anti-
An engaging groove formed in a guide plate with which the upper edge of the bearing guide abuts;
A latching protrusion protruding from the upper edge of the bearing guide so as to be caught in the latching groove;
And the second clutch is engaged with the second clutch.