KR101905335B1 - Dry double clutch - Google Patents

Dry double clutch Download PDF

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Publication number
KR101905335B1
KR101905335B1 KR1020170142539A KR20170142539A KR101905335B1 KR 101905335 B1 KR101905335 B1 KR 101905335B1 KR 1020170142539 A KR1020170142539 A KR 1020170142539A KR 20170142539 A KR20170142539 A KR 20170142539A KR 101905335 B1 KR101905335 B1 KR 101905335B1
Authority
KR
South Korea
Prior art keywords
crankshaft
connector
rotor
formed
insertion portion
Prior art date
Application number
KR1020170142539A
Other languages
Korean (ko)
Inventor
강석민
박종문
Original Assignee
주식회사평화발레오
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사평화발레오 filed Critical 주식회사평화발레오
Priority to KR1020170142539A priority Critical patent/KR101905335B1/en
Application granted granted Critical
Publication of KR101905335B1 publication Critical patent/KR101905335B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/02Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00Friction clutches
    • F16D13/22Friction clutches with axially-movable clutching members
    • F16D13/38Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/385Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs double clutches, i.e. comprising two friction disc mounted on one driven shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00Special features of vehicle units
    • B60Y2400/42Clutches or brakes
    • B60Y2400/424Friction clutches
    • B60Y2400/4242Friction clutches of dry type

Abstract

The present invention relates to a dry double clutch, wherein a coupling rotor (20) is coupled to a crankshaft (11) with a bolt (24), and the coupling rotor (20) is spline-coupled to a connecting plate (38) of the dry double clutch (30). Therefore, connection work between the crankshaft (11) and the dry double clutch (30) can be easily and quickly performed.

Description

Dry double clutch {Dry double clutch}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry double clutch, and more particularly, to a dry double clutch that can be more easily connected to an engine.

A dry double clutch (DDC), which includes a clutch for an odd-numbered stage and a clutch for an even-numbered stage, constitutes a part of a double clutch transmission (DCT). The double clutch transmission includes an odd-numbered stage and an even-numbered stage input shaft connected to the two clutches, respectively.

Therefore, as long as the current gear range is implemented, the clutch connected to the input shaft is disengaged and the clutch connected to the other input shaft on which the next gear range is implemented is engaged to prevent the disconnection of the torque transmission during shifting There is an advantage that the shift is performed very quickly.

In the conventional dry double clutch, a damper flywheel is mounted on a crankshaft of an engine through a plurality of bolts, and a connecting plate of a dry double clutch is connected to a damper flywheel by a plurality of rivets.

Therefore, the number of fastening parts such as bolts and rivets is large, so that assembly is troublesome and time-consuming.

Korean Patent Publication No. 10-2012-0020341 (Mar.

Accordingly, it is an object of the present invention to provide a dry double clutch that can be connected to an engine crankshaft more easily and quickly.

In order to achieve the above object, according to the present invention, there is provided an engine, comprising: a connecting plate that transmits rotational force from a crankshaft of an engine; an intermediate plate connected to the connecting plate and integrally rotated; A first pressure plate, a first pressure plate, and a second pressure plate for rotating the first disk and the second disk in contact with the intermediate plate, respectively, the first and second disks being connected to the input shaft and the second input shaft, Wherein a coupling rotor is bolted to the crankshaft and the connecting plate is splined to the coupling rotor.

The coupling rotor includes a connector having a spline tooth formed on an outer circumferential surface thereof and spline coupled with the connecting plate, and a hub formed on one side is splined to the outer circumferential surface of the crankshaft.

The coupling rotor further includes a rotor sleeve having a bearing mounting portion, a first insertion portion protruding from one side of the bearing mounting portion, and a second insertion portion protruding from one side of the first insertion portion, The first inserting portion is inserted and seated in a seating end formed on one side of the connector, and the contact surfaces of both sides thereof (the connector and the rotor sleeve) are welded to each other, so that the connector and the rotor sleeve are integrated.

A receiving groove is formed in an end surface of the crankshaft, a second insertion portion of the rotor sleeve is inserted and seated in the receiving groove, a through hole is formed in the second insertion portion, and a tapped hole is formed at a corresponding position of the crankshaft And the bolt is fastened to the tapped hole through the through hole.

A pilot bearing is press-fitted into the bearing mounting portion, and the end of the first input shaft is supported by the pilot bearing.

According to the present invention as described above, the number of fastening parts is greatly reduced by connecting the crankshaft of the engine and the connecting plate of the dry double clutch directly through the coupling rotor.

Accordingly, it is not necessary to assemble a plurality of fastening parts individually, so that the connection operation of the dry double clutch can be carried out very easily and quickly.

Further, according to the present invention, the supporting state is more stably and stabilized by being supported via the pilot bearing in the coupling rotor in which one end of the first shaft (inner shaft) of the double clutch transmission is fixed to the crankshaft, Noise and vibration are reduced.

1 is an exploded perspective view of a crankshaft connection portion of a dry double clutch according to the present invention.
2 is a cross-sectional view of a dry double clutch connected to a crankshaft;
3 is a partially enlarged view of the crankshaft connecting portion of the dry type double clutch shown in Fig. 2;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The thicknesses of the lines and the sizes of the components shown in the accompanying drawings may be exaggerated for clarity and convenience of explanation.

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

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

As shown in Figs. 1 to 3, the dry double clutch 30 is connected to the crankshaft 11 of the engine 10 via a coupling rotor 20.

The first input shaft 41 and the second input shaft 42 of the double clutch transmission (DCT) are inserted into the dry double clutch 30.

The first input shaft 41 is a solid shaft and is inserted into the second input shaft 42 which is a hollow shaft and the end of the first input shaft 41 is connected to the engine 10 via the end of the second input shaft 42, As shown in Fig.

The dry double clutch 30 includes an intermediate plate 31, a first disk 32 and a second disk 33 provided on both sides thereof, a first pressure plate 34 provided on the outer side of each disk, (35), and each diaphragm spring lever (36, 37) for operating these pressure plates.

The intermediate plate 31 is rotatably installed on the second input shaft 42 via a bearing and is riveted to the connecting plate 38. Since the connecting plate 38 is connected to the crankshaft 11 side and is constantly rotated during engine operation, the intermediate plate 31 connected to the connecting plate 38 is always rotated during engine operation.

The first disk 32 and the second disk 33 are spline coupled to the first input shaft 41 and the second input shaft 42 and are integrally rotated together with the corresponding input shaft.

When the diaphragm spring levers 36 and 37 are operated by the clutch operating mechanism, the pressure plates 34 and 35 press the discs 32 and 33 against the intermediate plate 31 to rotate the discs 32 and 33, And 33 are mounted, and the power is transmitted to the transmission. Of course, only one of the two power transmission lines is operated.

The coupling rotor (20) includes a connector (21) and a rotor sleeve (22).

The connector 21 is formed as a substantially disk-shaped member with a spline tooth 21a on the outer circumferential surface thereof, which is engaged with a spline tooth 38a formed on the inner diameter portion of the connecting plate 38. [ A cylindrical hub 21b into which the crankshaft 11 is inserted is formed at the center of the connector 21 and a spline tooth 21c for spline engagement with the crankshaft 11 is formed on the inner circumferential surface of the hub 21b .

Further, a ring-shaped seating end 21d, which is concentric with the hub 21b, is protrudingly formed on one side of the connector 21 (the side opposite to the side on which the hub 21b is formed).

The rotor sleeve 22 is a substantially cylindrical member having a plurality of steps formed on the outer circumferential surface thereof. The rotor sleeve 22 has a bearing mounting portion 22a having a relatively large diameter as compared with the other portions, 1 insertion portion 22b and a second insertion portion 22c protruding at a further reduced diameter in the central portion of the first insertion portion 22b.

The rotor sleeve 22 is welded to the connector 21 by welding the contact surfaces of both the connector 21 and the rotor sleeve 22 after the first insertion portion 22b is seated on the inner diameter portion of the fitting end 21d of the connector 21, 21).

A pilot bearing 23 is press-fitted into the bearing mounting portion 22a.

A circular receiving groove 11a into which the second insertion portion 22c of the rotor sleeve 22 is inserted is formed at the center of the end surface of the crankshaft 11 and a crankshaft 11 The inner circumferential surface of which is formed with a threaded hole 11b. A through hole 22d is formed in the second insertion portion 22c of the rotor sleeve 22 corresponding to the tapped hole 11b.

A spline tooth 11c corresponding to the spline tooth 21c formed on the inner circumferential surface of the hub 21b of the connector 21 is formed on the outer circumferential surface of the crankshaft 11.

The coupling rotor 20 in a state in which the connector 21, the rotor sleeve 22 and the pilot bearing 23 are assembled is mounted on the crankshaft 11 of the engine 10 via the bolts 24 do.

First, the hub 21b of the connector 21 is fitted to the outer circumferential surface of the crankshaft 11, and the two spline teeth 11c and 21c are engaged with each other. That is, the connector 21 is splined to the crankshaft 11.

At this time, the second insertion portion 22c of the rotor sleeve 22 is seated in the receiving groove 11a formed at the end of the crankshaft 11.

The rotor sleeve 22 is fixed to the crankshaft 11 by inserting the bolt 24 through the through hole 22d and fastening the bolt 24 to the tapped hole 24.

The coupling rotor 20 is fixed to the crankshaft 11 in the rotating direction by the spline coupling of the connector 21 and the crankshaft 11 as described above and the rotor sleeve 22 is fixed to the crankshaft 11 by bolts 24) so that the coupling rotor 20 is fixed to the crankshaft 11 in the axial direction.

The connecting plate 38 of the dry double clutch 30 is spline coupled with the connector 21 of the coupling rotor 20 (coupling of the spline teeth 21a and the spline teeth 38a) to the crankshaft 11 The connection operation of the dry double clutch 30 is completed.

The end of the first input shaft 41 of the transmission is inserted into the inner ring of the pilot bearing 23 provided in the rotor sleeve 22 and is supported rotatably.

The power of the engine 10 is transmitted to the intermediate plate 31 through the crankshaft 11, the connector 21 and the connecting plate 38 by the above-described connection structure, Is transmitted to the transmission through an input shaft (41 or 42) connected to the rotating disk by selectively rotating the second disk (33) or the second disk (33).

The coupling rotor 20 is inserted into the clutch and transmission assembly line in an assembled state in which the connector 21 and the rotor sleeve 22 are welded and the pilot sleeve 23 is press-fitted into the rotor sleeve 22. [

That is, in the assembly line, the coupling rotor 20 is assembled with the connecting plate 38 of the dry double clutch 30 and the coupling rotor 20 of the coupling rotor 20 after the bolts 24 are assembled to the crankshaft 11 The coupling operation of the dry double clutch 30 and the crankshaft 11 is completed merely by splining the connector 21.

In this way, the dry double clutch 30 is directly connected to the crankshaft 11 through the coupling rotor 20. Since this coupling operation is completed by one bolt 24 assembly and one spline fastening operation, The number of fastening parts is greatly reduced as compared with a case where a damper flywheel is connected to a crankshaft by a plurality of bolts and a dry double clutch is connected to a damper flywheel by a plurality of rivets.

The coupling rotor 20 is also configured such that the connector 21 is splined to the crankshaft 11 and the rotor sleeve 22 is coupled to the crankshaft 11 by bolts 24, And axial direction.

Since the first input shaft 41 is supported by the rotor sleeve 22 of the coupling rotor 20 firmly fixed via the pilot bearing 23 so that the supporting state of the first input shaft 41 is stabilized, It helps to reduce noise and vibration.

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.

10: engine 11: crankshaft
11a: receiving groove 11b: tap hole
11c: spline teeth 20: coupling rotor
21: Connector 21a: Spline tooth type
21b: hub 21c: spline teeth
21d: seat 22: rotor sleeve
22a: bearing mounting portion 22b: first insertion portion
22c: second insertion portion 22d: through hole
23: Pilot bearing 24: Bolt
30: dry double clutch 31: intermediate plate
32: first disk 33: second disk
34: first pressure plate 35: second pressure plate
36, 37: diaphragm spring lever 38: connecting plate
38a: Spline tooth profile

Claims (5)

  1. A connecting plate that is connected to the connecting plate and integrally rotates, a first disk which is provided on both sides of the intermediate plate, and which is respectively connected to the first input shaft and the second input shaft of the double clutch transmission, And a diaphragm spring lever for actuating a first pressure plate, a second pressure plate, and a first pressure plate and a second pressure plate for rotating the first and second disks in contact with the intermediate plate, As a result,
    A coupling rotor is bolted to the crankshaft and the connecting plate is splined to the coupling rotor.
  2. The method according to claim 1,
    Wherein the coupling rotor includes a connector, the connector having a spline tooth formed on an outer circumferential surface thereof and spline coupled with the connecting plate, and a hub formed on one side thereof is splined to the outer circumferential surface of the crankshaft.
  3. The method of claim 2,
    The coupling rotor further includes a rotor sleeve having a bearing mounting portion, a first insertion portion protruding from one side of the bearing mounting portion, and a second insertion portion protruding from one side of the first insertion portion, Wherein the first inserting portion is inserted and seated in a seating end formed on one side of the connector, and the contact surfaces of both sides thereof (the connector and the rotor sleeve) are welded together so that the connector and the rotor sleeve are integrated.
  4. The method of claim 3,
    A receiving groove is formed in an end surface of the crankshaft, a second insertion portion of the rotor sleeve is inserted and seated in the receiving groove, a through hole is formed in the second insertion portion, and a tapped hole is formed at a corresponding position of the crankshaft And the bolt is fastened to the tapped hole through the through hole.
  5. The method of claim 3,
    And a pilot bearing is press-fitted into the bearing mounting portion, and an end of the first input shaft is supported by the pilot bearing.

KR1020170142539A 2017-10-30 2017-10-30 Dry double clutch KR101905335B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170142539A KR101905335B1 (en) 2017-10-30 2017-10-30 Dry double clutch

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Application Number Priority Date Filing Date Title
KR1020170142539A KR101905335B1 (en) 2017-10-30 2017-10-30 Dry double clutch

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KR101905335B1 true KR101905335B1 (en) 2018-10-05

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Application Number Title Priority Date Filing Date
KR1020170142539A KR101905335B1 (en) 2017-10-30 2017-10-30 Dry double clutch

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2693963B2 (en) 1988-03-23 1997-12-24 アイシン・エィ・ダブリュ株式会社 Starting device in the vehicle for an automatic transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2693963B2 (en) 1988-03-23 1997-12-24 アイシン・エィ・ダブリュ株式会社 Starting device in the vehicle for an automatic transmission

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