KR101786300B1 - Torque converter for vehicle - Google Patents

Torque converter for vehicle Download PDF

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Publication number
KR101786300B1
KR101786300B1 KR1020160016158A KR20160016158A KR101786300B1 KR 101786300 B1 KR101786300 B1 KR 101786300B1 KR 1020160016158 A KR1020160016158 A KR 1020160016158A KR 20160016158 A KR20160016158 A KR 20160016158A KR 101786300 B1 KR101786300 B1 KR 101786300B1
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KR
South Korea
Prior art keywords
clutch
disc
diameter portion
discs
clutch disc
Prior art date
Application number
KR1020160016158A
Other languages
Korean (ko)
Other versions
KR20170095432A (en
Inventor
하창윤
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020160016158A priority Critical patent/KR101786300B1/en
Publication of KR20170095432A publication Critical patent/KR20170095432A/en
Application granted granted Critical
Publication of KR101786300B1 publication Critical patent/KR101786300B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0215—Details of oil circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H2059/147—Transmission input torque, e.g. measured or estimated engine torque

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

A torque converter for a vehicle according to the present invention includes: a clutch disc having a recessed groove formed therein to receive a coupling portion of a hub at an inner diameter portion; and a clutch plate having an assembled portion formed at an outer diameter portion of the clutch plate alternately arranged at a set distance; And an elastic body sandwiched between the clutch discs to provide an elastic force in the rotational direction of the clutch disc.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a torque converter for a vehicle,

The present invention relates to a torque converter for a vehicle including a multi-plate clutch that minimizes noise generation due to engine angular acceleration variation.

The automatic transmission for a vehicle has a torque converter and a power train as a multi-stage transmission mechanism connected to the torque converter. The automatic transmission includes a power converter for selectively operating one of the operating elements of the power train And a hydraulic control system.

In such an automatic transmission, a multi-plate clutch is employed as a friction member for connecting or disconnecting power between the planetary gear set operating element and another planetary gear set operating element.

1, a plurality of clutch plates 106 are horizontally disposed on the inner ring concave-convex portion 104 of the clutch retainer 102 connected to the input shaft 100 A clutch disc 114 is disposed between the clutch plates 106 on the outer ring concave-convex portion 112 of the clutch hub 110 connected to one of the operating elements 108 of the planetary gear set.

A piston 116 is disposed inside the clutch retainer 102 so that a hydraulic chamber 118 is formed between the clutch retainer 102 and the piston 116 and a piston 116 is always provided on the opposite side to the hydraulic chamber. A return spring 120 in the form of a diaphragm for pushing it toward the hydraulic chamber 118 is disposed.

Accordingly, when the hydraulic pressure is supplied to the pressure chamber 118, the piston 116 advances while overcoming the elastic force of the return spring 120 to compress the clutch plate 106 and the clutch disc 114 to transmit the power.

In contrast to this, when the oil pressure is released, the piston 116 retracts due to the elastic force of the return spring 120, isolating the clutch plate 106 from the clutch disc 114 to block power transmission.

The clutch hub 110 and the clutch disc 114 are spline assembled to each other in the multi-plate clutch. When the angular acceleration of the engine is varied, the clutch hub 110 and the clutch disc 114 are shaken, There is a problem that a cheetah sound is generated.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2007-0091778 A

It is an object of the present invention to provide a torque converter for a vehicle that prevents noise due to a clearance generated between a clutch disk and a hub of a multi-plate clutch when the angular speed of the engine varies.

According to an aspect of the present invention, there is provided a torque converter for a vehicle, comprising: a clutch disc having a clutch disc formed with a recess for receiving a coupling portion of a hub on an inner circumferential portion thereof and a clutch plate having an assembling portion formed on an outer circumferential portion thereof, And an elastic body sandwiched between the clutch discs to provide an elastic force in a rotational direction of the clutch disc.

Wherein the clutch discs are connected to each other by an elastic disc and the other clutch discs adjacent to each other, and each of the recessed grooves is connected while being rotated so as to have a difference by a predetermined angle, As shown in FIG.

And the setting angle is set based on an engine torque variation amount.

And the even-numbered clutch discs and the odd-numbered clutch discs of the clutch discs are coupled to each other in a state where the lead-in grooves are aligned in a line.

And the inner diameter portion and the outer diameter portion of the clutch plate are respectively provided larger than the inner diameter portion and the outer diameter portion of the clutch disk.

And a friction material is fixed to one surface of the clutch disk in a region corresponding to the clutch plate, and the elastic body is connected to an area to which the clutch plate is not corresponding.

And the elastic body is provided in a ring shape between the clutch discs with respect to the center of the clutch disc.

According to the torque converter for a vehicle having the above-described structure, it is possible to prevent occurrence of clearance between the hub and the clutch disc, thereby reducing occurrence of backlash noise due to variations in the angular acceleration of the engine.

In addition, by absorbing the driving shock generated in the clutch disc by the elastic body, the generation of additional noise can also be reduced.

1 is a view showing a conventional multi-plate clutch structure,
FIG. 2 is a part showing a hub and a multi-plate clutch coupling structure of a torque converter for a vehicle according to an embodiment of the present invention. FIG.
3 illustrates a multi-plate clutch configuration according to an embodiment of the present invention,
Figure 4 illustrates a hub and clutch disc combination in accordance with an embodiment of the present invention;
5 is a cross-sectional view illustrating a torque converter for a vehicle according to an embodiment of the present invention.

Hereinafter, a torque converter for a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a component view showing a hub and multi-plate clutch coupling structure of a torque converter for a vehicle according to an embodiment of the present invention, and FIG. 3 is a view illustrating a multi-plate clutch configuration according to an embodiment of the present invention.

2 to 3, the torque converter for a vehicle includes a clutch disc 20 having an inlet groove 23 formed therein to receive a coupling portion 13 of a hub 10 and an assembly portion 33 at an outer diameter portion. A multi-plate clutch (40) provided with alternating clutch plates (30) formed at predetermined intervals; And an elastic body 50 provided to provide an elastic force in the rotational direction of the clutch disc 20. [

The multi-plate clutch 40 is composed of a clutch disc 20 and a clutch plate 30. The multi disc clutch 40 is maintained at a predetermined distance from the clutch disc 20, and only when the clutch disc 20 is compressed in the axial direction due to an external action, The plates 30 are rubbed against each other.

Here, the clutch disc 20 is connected to the hub 10 and the hub 10 is connected to the front cover of the torque converter directly connected to the engine. Conversely, the clutch plate 30 is connected to the transmission output shaft via the assembling portion 33. [ Therefore, when the multi-plate clutch 40 is compressed in the axial direction, the engine and the transmission output shaft are directly connected.

The hub 10 is formed with a spline-shaped coupling portion 13 protruded to one side of the outer diameter portion. The coupling portion 13 and the plurality of clutch discs 20 included in the multi- And is provided with a sufficient length to be connected.

A spline-shaped receiving groove 23 is formed in the inner diameter portion of the clutch disc 20 so that the coupling portion 13 of the hub 10 can be drawn. Therefore, the driving force of the engine can be transmitted to the plurality of clutch discs 20 through the hub 10. [ Further, a spline-shaped assembly 33 is formed on the outer diameter portion of the clutch plate 30 so as to be connected to the transmission input shaft.

When the multiple disc clutch 40 is compressed in the axial direction as described above, the clutch disc 20 and the clutch plate 30 are rubbed against each other. At this time, a separate friction material 30 is provided between the clutch disc 20 and the clutch plate 30 The clutch disk 20 and the clutch plate 30 can be frictionally engaged with each other through the shading process even if a separate friction material is not applied. have.

The elastic body 50 is provided between the plurality of clutch discs 20 and is made of a rubber material to generate a force for restoring the clutch discs 20 to their original combined state. The elastic body 50 can prevent a clearance between the hub 10 and the clutch disc 20 due to the variation of the angular acceleration of the engine by applying an elastic force between the hub 10 and the clutch disc 20. [ As a result, occurrence of backlash noise can be reduced.

More specifically, the clutch discs 20 are connected to another adjacent clutch disc 20 by the elastic body 50, and the respective recessed grooves 23 are connected in a rotated state so as to differ from each other by a set angle, The engaging portion 13 of the hub 10 can be drawn in a state in which the inlet grooves 23 of the clutch discs 20 are aligned in a line.

FIG. 4 is a diagram illustrating a procedure for assembling a hub and a clutch disc according to an embodiment of the present invention.

4 (a) shows a state where a plurality of clutch discs 20 are connected to each other by an elastic body 50 in a state in which the inlet grooves 23 are shifted from each other by a predetermined angle. 4 (b), the engaging grooves 23 of the plurality of clutch discs 20 are aligned in a row, and then the engaging portions 13 of the hub 10 are inserted into the inlet grooves 23 . 4 (c) shows a state in which the hub 10 and the clutch disc 20 are engaged. As described above, the hub 10 and the clutch disc 20 are combined to provide an elastic force to restore the clutch disc 20 to its original state, as shown by the arrows, It is possible to prevent a clearance from being generated between the clutch discs 20.

On the other hand, the setting angle can be set based on the engine torque variation amount. In other words, generally, in the case of a four-cylinder engine, the crankshaft is operated due to the respective explosion stroke acting on four cylinders, while the crankshaft appears to rotate smoothly but is rotated due to each explosion stroke. Change.

At this time, the engine torque variation amount varies depending on the vehicle, and the larger the engine torque variation amount is, the larger the setting angle is set, and the elastic force of the elastic body 50 must be set to be strong. Therefore, clearance can be prevented from occurring between the hub 10 and the clutch disc 20.

In addition, the even-numbered clutch discs 20 and the odd-numbered clutch discs 20 of the clutch discs 20 are connected to each other in a state where the lead- .

That is, when the number of the clutch discs 20 is three or more, the even-numbered clutch discs 20 are aligned with each other and the odd-numbered clutch discs 20 are aligned with each other, So that the elastic bodies provided between the clutch discs 20 can be provided to exert an elastic force in the same direction. Therefore, the coupling force between the clutch disc 20 and the hub 10 can be further strengthened, and the occurrence of clearance due to the change in the angular acceleration of the engine can be prevented.

The inner diameter portion and the outer diameter portion of the clutch plate 30 are respectively larger than the inner diameter portion and the outer diameter portion of the clutch disc 20 and the clutch plate 30 is supported on one side of the clutch disc 20 The friction members 25 and 35 are fixed in the region where the clutch plate 30 is not supported and the elastic body 50 can be connected to the region where the clutch plate 30 is not supported. Therefore, it is possible to provide the multiple disc clutch 40 with a friction function and at the same time to couple the clutch discs 20 and the engaging portions 13 of the hub 10 with each other.

5 is a cross-sectional view (A-A ') showing a torque converter for a vehicle according to an embodiment of the present invention. Referring to FIG. 5, the engaging portion 13 of the hub 10 is correspondingly inserted into the recessed groove 23 located at the inner diameter portion of the clutch discs 20. Particularly, the clutch disc 20 is provided with an elastic body 50 connected to a position where the clutch plate 30 is not supported. The friction discs 25 and 35 are provided between the clutch disc 20 and the clutch plate 30 so that the clutch disc 20 and the clutch plate 30 are engaged with each other when the multi- The engine power can be transmitted in the order of the hub 10, the clutch disc 20, and the clutch plate 30 by rubbing against each other through the clutch discs 25 and 35. An assembly portion 33 is formed on the outer diameter portion of the clutch plate 30. The transmission input shaft is connected to the assembly portion 33 so that the engine is directly connected to the transmission input shaft.

Further, the elastic body 50 may be provided in a ring shape between the clutch discs 20 with respect to the center of the clutch disc 20. That is, since the elastic body 50 is formed along the circumference of one side of the clutch discs 20, it can be provided with strong rigidity and strong elastic force.

According to the torque converter for a vehicle having the above-described structure, it is possible to prevent occurrence of clearance between the hub and the clutch disc, thereby reducing occurrence of backlash noise due to variations in the angular acceleration of the engine.

In addition, by absorbing the driving shock generated in the clutch disc by the elastic body, the generation of additional noise can also be reduced.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: hub 13:
20: clutch disc 23: inlet groove
25, 35: friction material 30: clutch plate
33: Assembly section 40: Multiple plate clutch
50: elastomer

Claims (7)

A clutch disc having a clutch disc formed with a recessed groove for receiving a coupling portion of the hub at an inner diameter portion and a clutch plate having an assembling portion formed at an outer diameter portion of the clutch disc alternately at a set distance; And
And an elastic body fitted between the clutch discs to provide an elastic force in a rotating direction of the clutch disc,
Wherein the clutch discs are connected to each other by an elastic disc and the other clutch discs adjacent to each other, and each of the recessed grooves is connected while being rotated so as to have a difference by a predetermined angle, And wherein the torque converter further comprises: delete The method according to claim 1,
And the set angle is set based on an engine torque variation amount. The method according to claim 1,
Numbered clutch discs and the odd-numbered clutch discs of the clutch discs are coupled to each other in a state in which lead-in grooves are aligned with one another. The method according to claim 1,
And the inner diameter portion and the outer diameter portion of the clutch plate are respectively provided larger than the inner diameter portion and the outer diameter portion of the clutch disc. The method of claim 5,
Wherein a friction material is fixed to one surface of the clutch disc in a region corresponding to the clutch plate, and the elastic body is connected to an area to which the clutch plate does not correspond. The method according to claim 1,
Wherein the elastic body is provided in a ring shape between the clutch discs with respect to the center of the clutch disc.
KR1020160016158A 2016-02-12 2016-02-12 Torque converter for vehicle KR101786300B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160016158A KR101786300B1 (en) 2016-02-12 2016-02-12 Torque converter for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160016158A KR101786300B1 (en) 2016-02-12 2016-02-12 Torque converter for vehicle

Publications (2)

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KR20170095432A KR20170095432A (en) 2017-08-23
KR101786300B1 true KR101786300B1 (en) 2017-10-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003004071A (en) 2001-06-20 2003-01-08 Hitachi Constr Mach Co Ltd Multiple disc brake device, multiple clutch device and hoisting gear of crane equipped with the braking device and the clutch device
JP2004125059A (en) * 2002-10-02 2004-04-22 Suzuki Motor Corp Wet type multiple plate clutch device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003004071A (en) 2001-06-20 2003-01-08 Hitachi Constr Mach Co Ltd Multiple disc brake device, multiple clutch device and hoisting gear of crane equipped with the braking device and the clutch device
JP2004125059A (en) * 2002-10-02 2004-04-22 Suzuki Motor Corp Wet type multiple plate clutch device

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