KR101704241B1

KR101704241B1 - Clutch housing for manual transmission of vehicle

Info

Publication number: KR101704241B1
Application number: KR1020150105829A
Authority: KR
Inventors: 손상철
Original assignee: 현대자동차주식회사
Priority date: 2015-07-27
Filing date: 2015-07-27
Publication date: 2017-02-07
Also published as: KR20170013023A

Abstract

The present invention provides a motorcycle comprising: a housing body having a flywheel that rotates together with rotation of a crankshaft; a clutch disk that is closely contacted with or separated from the flywheel in the housing body to intercept power transmission; And a cooling fan for discharging the heat generated from the friction surface between the wheel and the clutch disc to the outside of the housing body.

Description

Technical Field [0001] The present invention relates to a clutch housing for a manual transmission of a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a clutch housing for a manual transmission of a vehicle, and more particularly, to a clutch housing for a manual transmission of a vehicle in which frictional heat between a flywheel and a clutch disk is discharged to the outside.

In general, the power transmission process of the engine is briefly described. The pulsating torque of the crankshaft is transmitted to the flywheel by the explosion stroke of the cylinder, and the rotational force transmitted to the flywheel is converted to a constant rotational force by the inertia and transmitted to the clutch.

Here, the rotational force transmitted to the clutch is transmitted to the transmission through the intermittence of the clutch shaft connected to the clutch disc, and the rotational force transmitted to the transmission is converted by the main shaft and the count shaft to be transmitted to the propeller shaft.

Then, the rotational force transmitted to the propeller shaft is transmitted to the drive wheels through the longitudinal reduction gear, the differential, and the axle shaft.

As described above, the flywheel, which converts the pulsating torque of the crankshaft to a constant rotational force by inertia, is an inertial disk made of cast iron and generates a lot of heat due to friction with the clutch disk.

At this time, as the number of friction contact between the clutch disk and the friction surface of the flywheel increases during frequent shifting of the vehicle during low-speed traveling of the vehicle, the frictional temperature increases due to the friction, thereby decreasing the durability of the flywheel and the clutch disc. Slip with the friction surface due to the high heat of the clutch is performed, and the function of the clutch is deteriorated by the generated dust.

Korean Patent Publication No. 10-2003-0088236 (November 19, 2003)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clutch for a manual transmission of a vehicle which is provided with a cooling fan in a clutch housing main body so as to be rotated by a flywheel so as to radiate frictional heat to friction surfaces of the flywheel and the clutch disk, Thereby providing a housing.

The clutch housing for a manual transmission of a vehicle according to the present invention includes a housing body having a flywheel which rotates together with rotation of a crankshaft, a clutch disk which is closely contacted with or spaced apart from the flywheel in the housing body, And a cooling fan installed in the housing main body and discharging heat generated from a friction surface between the flywheel and the clutch disc to the outside of the housing body.

The clutch housing for a manual transmission of the vehicle further includes a clutch cover fixed to the flywheel and having a pressure plate for selectively frictionally contacting the clutch disk toward the flywheel.

Here, the cooling fan is installed in a dust hole protruding from a lower outer circumferential surface of the housing main body.

The cooling fan is coupled to a rotating shaft provided inside the dust hole along the same installation direction as the crankshaft and a plurality of the cooling fan on the outer circumferential surface of the rotating shaft and rotates by rotation of the flywheel, And a plurality of blades.

The cooling fan further includes an elastic member which is provided in the longitudinal direction of the rotary shaft and is formed to vary the length of the rotary shaft. When the bearing is press-fitted into the coupling groove provided in the dust hole, The length is variable by the member and both ends are inserted into the bearing.

Further, the cooling fan is rotated by the rotational force generated when the flywheel rotates.

On the other hand, the cooling fan is installed in the lower portion of the housing main body within a range in which no interference occurs in the rotation radius of the flywheel.

The cooling fan discharges the friction material generated from the friction surface to the outside of the housing body by rotation.

According to the present invention, a cooling fan is installed in the clutch housing main body to rotate the cooling fan by rotation of the flywheel, thereby cooling the frictional surface of the frictional surface of the flywheel and the clutch disc .

Accordingly, the present invention minimizes frictional heat generated between the flywheel and the clutch disc to prevent premature wear of the clutch disc, so that the durability of the clutch disc can be improved.

Further, according to the present invention, the friction material generated by the friction between the flywheel and the clutch disc is discharged to the outside of the housing body by the rotation of the cooling fan, so that the power loss by the friction material can be prevented.

1 is a schematic view showing a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.
2 is a view showing an operating state of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.
3 is a view showing the operation of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.
4 is a schematic view illustrating a clutch housing for a manual transmission of a conventional vehicle according to an embodiment of the present invention.
5 is a view showing a cooling fan of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.
6 is a view showing an installation state of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.

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

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving it will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a schematic view showing a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention, and FIG. 2 is a view showing an operating state of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention.

1, a clutch housing for a manual transmission of a vehicle includes a housing main body 100, a clutch disc 200, and a cooling fan 300. As shown in Fig.

First, the housing main body 100 includes a fly wheel 110 that rotates together with the rotation of the crankshaft 10.

The clutch disc 200 is in close contact with or separated from the flywheel 110 inside the housing body 100 to intercept power transmission.

That is, the clutch of the vehicle is used to shut off the connection between the engine and the shift-time period when the engine is started or when the gear is shifted, and is used to transmit the power of the engine to the transmission side when the shift is complete and the shift is complete.

Here, the clutch of the vehicle controls the transmission of the engine power to the transmission side by regulating the contact between the flywheel 110 connected to the crankshaft 10 of the engine and the clutch disc 200 connected to the drive shaft of the transmission .

In other words, during traveling of the vehicle, the flywheel 110 rotates in the same manner as the crankshaft 10 rotates, as shown in FIG. 2 (a) (200) also rotates at the same speed as the flywheel (110).

When the clutch pedal 200 is kept in frictional contact with the flywheel 110 and depresses the clutch pedal of the vehicle for shifting as shown in FIG. 2 (b), the plate spring action of the clutch cover 400 The flywheel 110 is disengaged from the friction surface A with the flywheel 110, thereby causing low speed rotation due to inertia differently from the flywheel 110 rotating at high speed.

Thereafter, when the shift of the vehicle is completed, the plate spring restoring force of the clutch cover 440 causes the clutch disc 200 to contact the flywheel 110 as shown in Fig. 2 (c) 110 and the clutch disc 200, friction heat is generated on the friction surface A. As shown in FIG.

More specifically, the flywheel 110 is rotated at a high speed by the crankshaft 10 at the same speed as the rotational speed of the engine, and the clutch disc 200 is rotated at a high speed on the friction surface A with the flywheel 110 The slippage occurs due to the rotational speed difference when the flywheel 110 and the clutch disc 200 come into contact with each other after the shifting is completed.

Accordingly, the clutch disc 200 may cause premature wear due to contact with the flywheel 110 due to frequent shifting, and even durability may be weakened and breakage may occur.

To this end, the clutch housing for a manual transmission of a vehicle according to the present embodiment includes a cooling fan 300. [

The cooling fan 300 is installed in the housing main body 100 and rotates by a rotational force generated when the flywheel 110 rotates without a separate driving device.

The cooling fan 300 discharges the heat generated from the friction surface A between the flywheel 110 and the clutch disc 200 to the outside of the housing body 100.

That is, the cooling fan 300 allows the air outside the housing body 100 to be drawn into the housing body 100 during rotation, and the heat generated from the friction surface A can be directed to the outside of the housing body 100 So that the frictional heat generated in the friction surface A can be cooled.

The cooling fan 300 has a high heat transfer coefficient, a small specific gravity, and can be lightweight and easy to rotate. As a result, it is preferable that the cooling fan 300 is formed of aluminum to maximize a heat generating function. May be used.

The clutch cover 400 is fixed to the flywheel 110 and includes a pressure plate 410 that selectively frictionally contacts the clutch disc 200 by pushing the clutch disc 200 toward the flywheel 110 side.

The clutch cover 400 serves to selectively allow the clutch disc 200 to contact the flywheel 110 when the vehicle is traveling or shifting through the leaf spring restoring force, as described above.

3 is a view showing the operation of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention, and FIG. 4 is a view schematically showing a clutch housing for a manual transmission of a conventional vehicle according to an embodiment of the present invention to be.

3, the clutch housing for a manual transmission of a vehicle has a flywheel 110 inside the housing body 100, and the cooling fan 300 rotates together with the rotation of the flywheel 110. [ So that cooling of the friction surface A is achieved.

That is, the flywheel 110 rotates in the clockwise direction during engine operation due to the running of the vehicle, and the cooling fan 300 rotates in the direction opposite to the flywheel 110 by the generated wind force.

Accordingly, since it is opened to the outside of the cooling fan 300, the outside air is supplied during rotation, and the superheated air inside the housing main body 100 is discharged to the outside to cool the friction surface A do.

Here, the cooling fan 300 is installed in the dust hole 100a protruding from the lower outer circumferential surface of the housing main body 100. [

4, the cooling fan 300 includes a housing body 100 (see FIG. 4) formed to discharge worn friction material when abrasion occurs due to a slip between a conventional flywheel 110 and a clutch disk 200, The dust hole 100a is formed on the lower portion of the dust hole 100a.

The cooling fan 300 includes a rotation shaft 310 and a blade 320.

The rotary shaft 310 is provided in a length corresponding to the width of the dust hole 100a and is installed inside the dust hole 100a along the same installation direction as the crankshaft 10. [

The blade 320 is formed in a wing shape and is coupled to the outer circumferential surface of the rotary shaft 310 in a plurality of directions and is rotated in the direction opposite to the flywheel 110 by the rotation of the flywheel 110, The heat of the friction surface A can be discharged to the outside of the housing main body 100. [

The cooling fan 300 can be installed in a plurality of positions within a range that does not cause interference with the rotation radius of the flywheel 110 at the lower portion of the housing main body 100. Accordingly, Can be obtained.

A plurality of protruding dust holes 100a may be formed in the lower portion of the housing main body 100. This allows the cooling fan 300 to be easily inserted into the housing main body 100 without interference with the turning radius of the flywheel 110 100 of the present invention.

In addition, the cooling fan 300 draws outside air into the inside as described above, and discharges the overheated heat of the friction surface (A) to the outside, and at the same time, discharges the heat of the flywheel 110 and the clutch disc 200 So that the friction material generated at the time of slip is discharged to the outside of the housing main body 100.

That is, the cooling fan 300 can be discharged to the outside of the housing main body 100 by the rotation of the blade 320 when the cooling fan 300 falls down to the bottom of the housing main body 100 due to its own weight as the friction material is generated.

FIG. 5 is a view showing a cooling fan of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention. FIG. 6 is a view showing an installation state of a clutch housing for a manual transmission of a vehicle according to an embodiment of the present invention. to be.

As shown in Fig. 5, the clutch housing for a manual transmission of a vehicle includes a cooling fan 300, and this cooling fan 300 is installed on the dust hole 100a.

Here, the cooling fan 300 is provided with an elastic member (not shown) so that it can be easily installed in the dust hole 100a.

In other words, the elastic member (not shown) is installed on both ends of the inner side along the longitudinal direction of the rotary shaft 310 except the mounting area of the blade 320, and the length of the rotary shaft 310 is variable.

In other words, when the bearing 330 is press-fitted into the coupling groove H provided in the dust hole 100a, the rotation shaft 310 presses both ends of the shaft 330 by the user so that the elastic member (not shown) So that both ends are inserted into the bearing 330 and are easily installed.

Accordingly, in this embodiment, the length of the rotary shaft 310 is compressed through a resilient member (not shown) to a length corresponding to the length in the width direction of the dust hole 100a. In the dust hole 100a, So that the assembling and maintenance of the rotary shaft 310 can be improved by fitting both ends of the rotary shaft 310 into the bearing 330 which is press-fitted into the coupling groove H.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many modifications may be made thereto, It will be understood that all or some of the elements (s) may be optionally constructed in combination. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: crankshaft 100: housing body
100a: dust hole 110: flywheel
200: Clutch disc 300: Cooling fan
310: rotation axis 320: blade
330: Bearing 400: Clutch cover
410: pressure plate A: friction surface
H: fastening groove

Claims

A housing main body having a flywheel which rotates together with the rotation of the crankshaft;
A clutch disc in close contact with or spaced from the flywheel inside the housing body to intercept power transmission; And
And a cooling fan installed in the housing body and discharging heat generated from a friction surface between the flywheel and the clutch disc to the outside of the housing body,
The cooling fan includes:
A dust hole protruding from a lower outer circumferential surface of the housing body,
A rotating shaft installed inside the dust hole along the same mounting direction as the crankshaft; And
And a plurality of blades coupled to an outer circumferential surface of the rotary shaft and rotated by rotation of the flywheel to circulate air inside the housing body,
Further comprising an elastic member provided on the longitudinal direction of the rotary shaft and configured to vary the length of the rotary shaft,
Wherein the rotation shaft is provided with a length variable by the elastic member and both ends thereof inserted into the bearing when the bearing is press-fitted into the engagement groove provided in the dust hole.

The method according to claim 1,
And a clutch cover fixed to the flywheel and having a pressure plate that selectively frictionally contacts the clutch disc by pushing the clutch disc toward the flywheel side.

delete

The method according to claim 1,
The cooling fan includes:
And is rotated by a rotational force generated upon rotation of the flywheel.

The method according to claim 1,
The cooling fan includes:
Wherein a plurality of clutches are provided within a range in which no interference occurs in a rotation radius of the flywheel at a lower portion of the housing main body.

The method according to claim 1,
The cooling fan includes:
And the friction material generated in the friction surface is discharged to the outside of the housing main body by rotation.