KR20160125100A - Vibration Reduction Apparatus for Motor Vehicle Torque Converter Using Insert Pendulum - Google Patents

Vibration Reduction Apparatus for Motor Vehicle Torque Converter Using Insert Pendulum Download PDF

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Publication number
KR20160125100A
KR20160125100A KR1020150055842A KR20150055842A KR20160125100A KR 20160125100 A KR20160125100 A KR 20160125100A KR 1020150055842 A KR1020150055842 A KR 1020150055842A KR 20150055842 A KR20150055842 A KR 20150055842A KR 20160125100 A KR20160125100 A KR 20160125100A
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KR
South Korea
Prior art keywords
pendulum
torque converter
vibration reduction
support plate
damper
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Application number
KR1020150055842A
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Korean (ko)
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KR101729956B1 (en
Inventor
송성영
최완
이국선
신순철
Original Assignee
한국파워트레인 주식회사
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Priority to KR1020150055842A priority Critical patent/KR101729956B1/en
Publication of KR20160125100A publication Critical patent/KR20160125100A/en
Application granted granted Critical
Publication of KR101729956B1 publication Critical patent/KR101729956B1/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
    • F16H41/00—Rotary fluid gearing of the hydrokinetic type
    • F16H41/24—Details
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/1201—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon for damping of axial or radial, i.e. non-torsional vibrations
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The present invention relates to a vibration reduction device for a vehicle torque converter which is provided in a torque converter for a vehicle and which attenuates vibrations and shocks in the rotational direction of the torque converter. More specifically, And a vibration reduction device for a vehicle torque converter using a pendulum to prevent collision between pendulums.

Description

Technical Field [0001] The present invention relates to a vibration reduction device for a vehicle torque converter using an internal pendulum,

The present invention relates to an apparatus for reducing vibration of a torque converter for a vehicle that is provided in a torque converter for a vehicle and which attenuates vibrations and shocks in the rotational direction of the torque converter. More particularly, And more particularly, to a vibration reduction device for a vehicle torque converter using a built-in pendulum.

Generally, a torque converter is installed between a vehicle engine and a transmission, and uses a fluid to transmit the driving force of the engine to the transmission. The torque converter includes a rotating impeller that receives the driving force of the engine, a turbine that is rotated by the oil discharged from the impeller, and a reactor that increases the rate of torque change by directing the flow of oil flowing back to the impeller in the rotating direction of the impeller. Quot; stator ").

The torque converter is equipped with a lock-up clutch (also called a "damper clutch") that can directly connect between the engine and the transmission, as power transmission efficiency may be degraded if the load on the engine increases. The lock-up clutch is disposed between the turbine and the front cover directly connected to the engine so that the rotational power of the engine can be directly transmitted to the transmission through the turbine.

This lockup clutch includes a piston which is axially movable on the turbine shaft. And a torsional damper capable of absorbing shock and vibration acting in the rotating direction when the lock-up clutch is operated.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a half sectional view of a conventional torque converter for a vehicle cut in an axial direction, showing a torque converter for a vehicle. Fig.

The conventional torque converter includes a front cover 4 connected to a crankshaft of the engine and rotated, an impeller 6 connected to the front cover 4 and rotating together, a turbine 6 disposed at a position facing the impeller 6 And a reactor 10 or a stator 10 positioned between the impeller 6 and the turbine 8 to change the flow of the oil from the turbine 8 to the impeller 6 side. The reactor 10 for transferring oil to the impeller 6 side has the same center of rotation as the front cover 4. The torque converter is provided with a lock-up clutch 14 as a means of directly connecting the engine and the transmission. A lock-up clutch 14 is disposed between the front cover 4 and the turbine 8.

The lock-up clutch 14 has a substantially disk-like shape and includes a piston 16 which is movable in the axial direction.

A torque damper 20 is coupled to the lock-up clutch 14. The local damper 20 transmits the driving force transmitted through the lockup clutch 14 to the turbine 8 to absorb the twisting force acting in the rotating direction of the shaft and attenuate the vibration.

The lock-up clutch 14 described above includes a friction plate 33 disposed between the front cover 4 and the piston 16. The friction plate (33) has friction surfaces (35) on both sides thereof. Therefore, when the piston 16 moves in the direction toward the front cover 4 by the oil pressure, the lockup clutch 14 moves the friction materials 35 to the front cover 4 while closely contacting the front cover 4 and the piston 16 The transmitted driving force can be transmitted to the friction plate 33. [

In recent years, there has been known a technique in which a vibration reduction device using a pendulum is applied to a localized damper 20 in order to reduce vibrations and shocks generated in the local dampers 20. [

2 is an exploded perspective view of a conventional local damper 10 and vibration reduction sections 20 and 30. As shown in the figure, the first vibration reduction portion 20 may be coupled to one side of the local damper 10 by rivets, and the second vibration reduction portion 30 may be coupled to the other side by a rivet. The first vibration reduction section 20 and the second vibration reduction section 20 are arranged such that pendulums moving in the radial direction due to the centrifugal force are disposed to act as a mass to absorb vibrations and shocks in the rotational direction of the local damper 10 have.

3 is an exploded perspective view of the vibration reducing section 30. As shown in Fig. The vibration reduction section 30 includes a support plate 31, a plurality of pendulums 32 and 33, and a plurality of engagement pins 35. [

The support plate 31 can be riveted to the local damper 10. The pendulums 32 and 33 are coupled to the support plate 31 so as to be freely rotatable by a predetermined distance along the circumferential direction of the support plate 31. [

The vibration reduction unit 30 can absorb vibrations and shocks in the rotational direction of the local damper 10 through the pendulums 32 and 33 moving in the radial direction by the centrifugal force.

The vibration reducing structure of the local damper 10 as described above has an advantage in that vibration and impact of the local damper 10 can be reduced through the motion of the pendulums 32 and 33. However, There is a possibility that the vibration and impact reduction efficiency is lowered due to the impact generated when the pendulum 32 or 23 is moved.

Korean Registered Patent No. 10-1358998 (Registered on Feb. 28, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration damper which absorbs vibrations and shocks using a pendulum whose position is changed according to a centrifugal force, The vibration and the impact in the rotation direction can be fully attenuated not only in the rotation speed region but also in the low rotation speed region, so that vibration reduction of the vehicle torque converter using the pendulum by operating the lock- .

And particularly to provide a vibration reduction device for a vehicle torque converter using a pendulum provided with a built-in pendulum between a pair of support plates to reduce the number of pendulums and improve the durability of the pendulum.

A vibration reduction device for a vehicle torque converter using a built-in pendulum according to the present invention comprises a front cover, an impeller coupled to the front cover and rotating together, a turbine disposed at a position facing the impeller, A lockup clutch having a lockup clutch disposed in the lockup clutch and switching the oil flow from the turbine to the impeller side and a piston directly connecting the front cover to the turbine, And a spline hub connected to the torque damper and transmitting the driving force transmitted to the torque damper to the transmission. The torque converter for a vehicle includes a torque converter And a vibration damping member coupled to one side or one side of the spline hub Device; Wherein the vibration reduction device comprises: a pair of support plates spaced apart in the axial direction; A plurality of pendulums disposed between the pair of support plates; And a plurality of coupling pins for coupling the pendulum to the support plate while varying its position according to a centrifugal force; .

At this time, a plurality of first pinholes, into which the coupling pins are inserted, are radially arranged along the circumferential direction of the support plate on the support plate, and the first pinholes are formed as round holes.

A plurality of pendulums are radially arranged along the circumferential direction of the support plate, and a plurality of second pinholes, which are fitted to be rotatable in the coupling pin, are formed in a round shape along the circumferential direction.

Further, the first pinhole is rounded to either the radially inner side or the outer side, and the second pinhole is rounded to the other side of the radially inner side or the outer side.

In addition, the vibration reduction device may further include: a fixing plate disposed radially inward of the pendulum between the pair of support plates; .

In the vibration reduction device for a torque converter for a vehicle using the pendulum according to the present invention, the pendulum is continuously operated not only in the high-speed revolution region of the engine but also in the low- The lock-up clutch can be operated even in the low-speed region of the engine, so that the fuel economy of the vehicle can be improved.

The number of pendulums is reduced because a single built-in pendulum is disposed between a pair of places, compared to a pendulum in which a pair of pendulums is disposed on one side and the other side of one plate. The pendulum is disposed inside the plate, There are fewer obstacles to the movement of the pendulum and the motion prediction of the pendulum is easy.

Further, since the pendulum is embedded between the support plates without being exposed to the outside, the durability of the pendulum is ensured.

1 is an axial sectional view of a general torque converter
2 is an exploded perspective view of a conventional local damper and a centrifugal absorption section
3 is an exploded perspective view of a conventional centrifugal absorption section
FIG. 4 is a perspective view of a vibration reduction device according to an embodiment of the present invention.
5 is an exploded perspective view of a vibration damping device according to an embodiment of the present invention.
6 is a front perspective view of a vibration damping device according to an embodiment of the present invention.
7 is a front view of a support plate according to an embodiment of the present invention.
8 is a front view of a pendulum according to an embodiment of the present invention.
9 is a cross-sectional view (AA ') of a pendulum according to an embodiment of the present invention.

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

4 is an overall perspective view of a vibration reduction device 1000 (hereinafter, referred to as 'vibration reduction device') of a torque converter for a vehicle using a pendulum according to an embodiment of the present invention. A perspective view is shown.

As shown in the figure, the vibration damping apparatus 1000 includes a pair of support plates 100 and 200 which are annular and spaced apart from each other in the axial direction, and a pair of support plates 100 and 200, And a pendulum 500 rotatably coupled to the pendulum 500. The fixed plate 300 is disposed between the pair of support plates 100 and 200 and is disposed radially inward of the pendulum 500, 500 for coupling the pendulum 500 to the support plates 100 and 200 so as to be rotatable on the support plates 100 and 200 and for fixing the fixture plate 300 to the support plates 100 and 200 ).

6 is a front perspective view of the vibration damping apparatus 1000, and Fig. 7 is a front view of the first support plate 100 according to an embodiment of the present invention.

A pendulum 500 is disposed between the support plates 100 and 200 and a second support plate 200 is disposed on the other side in the axial direction of the first support plate 100 although not shown. That is, a pair of the first support plate 100 and the second support plate 200 may be coupled so as to enclose one side and the other side of the pendulum 500. Hereinafter, the first support plate 100 will be mainly described. A plurality of pendulums 500 are disposed radially along the circumferential direction of the support plate 100. The pendulum 500 is coupled to the support plate 100 through the coupling pin 600 and is coupled to the first pinhole 111 formed in the support plate 100 in the circumferential direction or in the radial direction As shown in FIG.

7, the support plate 100 includes a through hole 150 passing through the center of the body 110 and the body 110, a first pinhole 111 formed along the circumferential direction of the body 110, And a fixing hole 121 formed along the circumferential direction of the fixing plate coupling portion 120 and the fixing plate coupling portion 120 formed on the inner peripheral side of the body 110 for coupling with the fixing plate 300 .

The first pinhole 111 is configured to be rotatable in a circumferential direction or a radial direction while the coupling pin 600 is inserted when the pendulum 500 is coupled. The first pinhole 111 is formed as a long round hole for smooth pendulum movement of the pendulum 500 And is formed convexly outward in the radial direction.

Although it is shown that the first pinhole 111 is formed as one pair per pendulum 500, it is obvious that the first pinhole 111 can be added or subtracted.

FIG. 8 is a front view of a pendulum 500 according to an embodiment of the present invention, and FIG. 9 is a cross-sectional view of a pendulum 500. The pendulum 500 is provided on the inner surface of the support plates 100 and 200 and includes a pendulum body 510 formed in an arc shape. The pendulum body 510 is formed with a plurality of second pinholes 520 to which the coupling pins 600 are coupled along the circumferential direction. That is, the coupling pin 600 is formed to sequentially pass through the first pinhole 111 of the support plate 100, the second pinhole 520 and the first pinhole of the second support plate 200, and the coupling pin 600 Is pivoted along the first and second pinholes 111 and 520, the pendulum 500 is pendulous.

At this time, the second pinhole 520 is configured to be rotatable in the circumferential direction or the radial direction by fitting the coupling pin 600, and has a round-shaped slot to smooth the pendulum motion of the pendulum 500, Are convexly formed radially inward.

Further, a pendulum groove 530 formed in the radially outer side of the pendulum is formed along the circumferential direction at the inner periphery of the pendulum. The pendulum groove 530 has an effect of preventing impact between the pendulum 500 and the fixed plate 300 by reducing the impact between the pendulum 500 and the fixed plate 300 during pendulum 500 movement. Although not shown in the drawing, when a damper made of a polymer material is applied on the pendulum groove 530, the vibration reduction effect according to the behavior of the pendulum can be doubled.

The technical idea should not be construed as being limited to the above-described embodiment of the present invention. 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 appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

1000: Vibration reduction device
100, 200: Support plate
110: body 111: first pinhole
120: fixed plate engaging portion 121: fixed hole
300: Fixing plate
500: pendulum 510: body
520: second pinhole 530: pendulum groove
600:

Claims (5)

A front cover, a front cover, an impeller rotating together with the front cover, a turbine disposed at a position facing the impeller, and a reactor positioned between the impeller and the turbine to change the flow of oil from the turbine to the impeller side. A torque damper which is coupled to the lockup clutch and absorbs impact and vibration acting in a rotating direction, and a transmission damper connected to the torque damper, A torque converter for a vehicle including a spline hub for transmitting a driving force transmitted to a local damper to a transmission,
The vehicle torque converter includes:
A vibration reduction device coupled to one side of the local damper or one side of the spline hub; / RTI >
Wherein the vibration reduction device comprises:
A pair of support plates spaced apart in the axial direction;
A plurality of pendulums disposed between the pair of support plates; And
A plurality of coupling pins for coupling the pendulum to the support plate while varying the position according to a centrifugal force;
And a vibration suppression device for a vehicle torque converter using the built-in pendulum.
The method according to claim 1,
The support plate
Wherein a plurality of first pinholes into which the coupling pins are inserted are radially disposed along the circumferential direction of the support plate, and the first pinholes are rounded slots.
3. The method of claim 2,
The pendulum includes:
A plurality of radially disposed along the circumferential direction of the support plate,
And a plurality of second pinholes fitted in the engaging pin so as to be rotatable, the engaging pins being formed in a plurality of round slots along the circumferential direction.
The method of claim 3,
Wherein the first pinhole is rounded to either the radially inner side or the outer side, and the second pinhole is rounded to the other side of the radially inner side or the outer side.
The method according to claim 1,
Wherein the vibration reduction device comprises:
A fixing plate disposed radially inward of the pendulum between the pair of support plates; Wherein the vibration suppression device further includes a built-in pendulum.
KR1020150055842A 2015-04-21 2015-04-21 Vibration Reduction Apparatus for Motor Vehicle Torque Converter Using Insert Pendulum KR101729956B1 (en)

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KR101729956B1 KR101729956B1 (en) 2017-04-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180077580A (en) * 2016-12-29 2018-07-09 주식회사 카펙발레오 Torque converter having pendulum damper for vehicle
CN110864054A (en) * 2019-11-27 2020-03-06 安徽江淮汽车集团股份有限公司 Separation and reunion cylinder, separation and reunion system and vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102617093B1 (en) * 2018-12-24 2023-12-26 주식회사 카펙발레오 Pendulum Damper using Insert Pendulum and Torque Converter for Motor Vehicle having the Same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010003832A5 (en) 2009-09-28 2012-07-12 Schaeffler Technologies AG & Co. KG HYDRODYNAMIC TORQUE TRANSDUCER WITH VIBRATOR AND VIBRATION DAMPER
JP5316461B2 (en) * 2010-03-30 2013-10-16 トヨタ自動車株式会社 Vibration reduction device
EP2685127B1 (en) 2011-03-11 2017-11-01 Toyota Jidosha Kabushiki Kaisha Vibration damping device
WO2012130203A1 (en) * 2011-03-31 2012-10-04 Schaeffler Technologies AG & Co. KG Centrifugal pendulum device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180077580A (en) * 2016-12-29 2018-07-09 주식회사 카펙발레오 Torque converter having pendulum damper for vehicle
CN110864054A (en) * 2019-11-27 2020-03-06 安徽江淮汽车集团股份有限公司 Separation and reunion cylinder, separation and reunion system and vehicle
CN110864054B (en) * 2019-11-27 2020-12-08 安徽江淮汽车集团股份有限公司 Separation and reunion cylinder, separation and reunion system and vehicle

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