KR101668260B1 - Vibration Reduction Apparatus for Motor Vehicle Torque Converter Using Eccentric Rotation Pendulum - Google Patents

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

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Publication number
KR101668260B1
KR101668260B1 KR1020150055970A KR20150055970A KR101668260B1 KR 101668260 B1 KR101668260 B1 KR 101668260B1 KR 1020150055970 A KR1020150055970 A KR 1020150055970A KR 20150055970 A KR20150055970 A KR 20150055970A KR 101668260 B1 KR101668260 B1 KR 101668260B1
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KR
South Korea
Prior art keywords
support plate
pendulum
coupled
torque converter
vibration reduction
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KR1020150055970A
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Korean (ko)
Inventor
송성영
최완
이국선
신순철
Original Assignee
한국파워트레인 주식회사
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Priority to KR1020150055970A priority Critical patent/KR101668260B1/en
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Publication of KR101668260B1 publication Critical patent/KR101668260B1/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
    • F16H2041/24—
    • 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
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F16H2045/0252—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means having a damper arranged on input side of the lock-up clutch

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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 that is provided in a torque converter for a vehicle and attenuates vibrations and shocks in a rotating direction of the torque converter. More particularly, To an apparatus for reducing vibration of a torque converter for a vehicle using an eccentric pendulum which realizes a pendulum movement through an input shaft.

Description

TECHNICAL FIELD [0001] The present invention relates to a vibration reduction device for a vehicle torque converter using an eccentric rotary pendulum,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] 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 attenuates vibrations and shocks in a rotating direction of the torque converter. More specifically, To an apparatus for vibration reduction of a torque converter for a vehicle using an eccentric rotary pendulum which realizes a positionally variable movement of a pendulum through negative eccentric rotation.

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 is advantageous in that vibrations and shocks of the local damper 10 can be reduced through movement of the pendulums 32 and 33. However, Vibration and shock reduction efficiency is lowered due to the impact generated when the pendulums 32 and 33 are lowered. Further, when the weight of the pendulums 32 and 33 is reduced, the vibration and impact reduction efficiency is further decreased.

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, It is possible to sufficiently attenuate the vibration and impact in the rotation direction in the low speed region as well as in the low speed region so that the lockup clutch is operated in the low speed region of the engine to improve the fuel efficiency. And a vibration reduction device.

And more particularly, to a vibration reduction device for a vehicle torque converter using an eccentric rotary pendulum which is configured so that a coupling portion for coupling a support plate and a pendulum is eccentrically rotatable on a support seat and a position of a pendulum is changed by eccentric rotation of a coupling portion.

A vibration reduction device for a vehicle torque converter using an eccentric rotary 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 disposed between the turbine and having a reactor for changing the flow of oil from the turbine to the impeller side and a piston for directly connecting the front cover to the turbine; And a spline hub which is connected to the torque damper and transmits driving force transmitted to the torque damper to a transmission. The torque converter for a vehicle includes a torque converter The damper is coupled to one side of the damper or one side of the spline hub Reduction apparatus; Wherein the vibration reduction device comprises: a support plate; A plurality of first pendulums disposed on one side of the support plate; And a plurality of first engaging parts coupled to one side of the support plate so as to be eccentrically rotatable and varying a position of the first pendulum by eccentric rotation according to centrifugal force and engaging with the support plate; .

Here, the vibration reduction device may include: a plurality of second pendulums disposed on the other side of the support plate; And a plurality of second engaging parts coupled to the other side of the support plate so as to be eccentrically rotatable and varying the position of the second pendulum by eccentric rotation according to the centrifugal force and engaging with the support plate; And the first and second coupling portions are connected to each other through an eccentric shaft passing through the support plate.

The first and second coupling portions are circular in cross section, and the first and second coupling holes are formed in the first and second pendulums so that the first and second coupling portions are rotatable.

In addition, a plurality of the eccentric shafts are radially arranged with a predetermined distance radially outward from the center of the support plate.

One end of the eccentric shaft is coupled with a predetermined distance radially outward from the center of the first engaging portion and the other end of the eccentric shaft is coupled with a predetermined distance radially outward from the center of the second engaging portion.

In addition, the first engaging portion and the second engaging portion are disposed to face each other.

In the vibration reduction device for a torque converter for a vehicle using the eccentric rotary pendulum of the present invention having the above-described structure, the pendulum is continuously operated not only in the high-speed revolution region of the engine but also in the low- And the impact is remarkably reduced, so that the lock-up clutch can be operated in the low-speed region of the engine, thereby improving the fuel economy of the vehicle.

Particularly, the pendulum is displaced through a coupling portion rotating eccentrically, and the coupling portion is coupled to the pendulum so as to be rotatable, so that a plurality of displacement orders exist, thereby increasing the vibration damping efficiency.

Further, the pendulum can be increased in mass by eliminating the collision between the pendulum and the support plate during pendulum movement, and the structure is simplified compared with the conventional vibration reduction apparatus.

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 view of a support plate according to an embodiment of the present invention.
7 is a front view of a first pendulum and a second pendulum according to an embodiment of the present invention;
FIG. 8 is a perspective view of a joint portion perspective view according to an embodiment of the present invention.
9 is an exploded perspective view of a coupling part 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 device 1000 includes a support plate 100 formed in an annular shape, a plurality of first and second support plates 100 and 200 disposed on both sides in the axial direction of the support plate 100 and rotatable in the circumferential direction and the radial direction, The first and second pendulums 200 and 300 are coupled to the support plate 100 such that the first and second pendulums 200 and 300 and the first and second pendulums 200 and 300 are rotatable on the support plate 100 (Not shown).

At this time, a plurality of engaging portions 500 are arranged on the support plate 100 so as to be eccentrically rotated while being radially disposed adjacent to the outer periphery of the support plate 100. The coupling unit 500 is rotatably coupled to the first and second pendulums 200 and 300 so that the first and second pendulums 200 and 300 are supported by the support plate 100 in the radial direction and the circumferential direction. Hereinafter, the detailed structure of the vibration damping device 1000 of the present invention having the above structure will be described in detail with reference to the drawings.

6 is a front view of a support plate 100 according to an embodiment of the present invention. The support plate 100 is provided with a through hole 110 passing through the center of the support plate 100 and a pin hole 120 spaced outward in the radial direction from the center of the support plate 100, .

The pinhole 120 is configured to be coupled through the eccentric shaft 550 (refer to FIG. 8) so that the eccentric shaft 550 is rotatable in the axial direction when the coupling unit is coupled, so that the coupling unit 500 can rotate eccentrically.

7 is a front view of a first pendulum 200 and a second pendulum 300 according to an embodiment of the present invention. The first pendulum 200 and the second pendulum 300 have the same shape and the first pendulum 200 is disposed on one side of the support plate 100 and the second pendulum 300 is disposed on one side of the support plate 100 And the first pendulum 200 on the other side. Although the first pendulum 200 and the second pendulum 300 are shown to be arranged radially, four pendules may be added or subtracted depending on the purpose of use. The upper first pendulum 210 disposed on the upper side will be described as an example. On the upper first pendulum 210, a coupling hole 215 into which the coupling portion 500 is rotatably fitted is formed. The coupling holes 215 may be spaced apart in the circumferential direction to form a pair. Therefore, the inner diameter of the coupling hole 215 may be a size corresponding to the outer diameter of the coupling portion 500.

FIG. 8 is a perspective view of a coupling part 500 according to an embodiment of the present invention, and FIG. 9 is an exploded perspective view of a coupling part 500 according to an embodiment of the present invention. As shown in the drawing, the coupling unit 500 includes a first coupling unit 510, a second coupling unit 520, and an eccentric shaft 550.

The first coupling portion 510 is disposed at one side of the support plate 100 and is formed into a cylindrical shape to be fitted into the coupling hole 215 of the pendulum described above. The second coupling portion 520 is disposed on the other side of the support plate 100 and is cylindrical in shape so as to be fitted into the coupling hole 215 of the pendulum described above. The eccentric shaft 550 supports the first and second engaging portions 510 and 520 to the supporting plate 100 so that the first and second engaging portions 510 and 520 can eccentrically rotate from one side and the other side of the supporting plate 100 100). The eccentric shaft 550 passes through the pinhole 120 of the support plate 100 and is rotatably coupled on the support plate 100 so as to be rotatable in the axial direction. One end of the eccentric shaft 550 is fixed to the first engagement portion 510, 2 engaging portion 520 of the engaging portion 520. At this time, one end of the eccentric shaft 550 is fixed at a predetermined distance radially outward from the center of the first engaging portion 510, and the other end is fixed at a predetermined distance radially outward from the center of the second engaging portion 520 . The first and second coupling portions 510 and 520 are eccentrically rotated around the pinhole 120 when the centrifugal force is generated in the support plate 100. The first and second coupling portions 510 and 520 are formed in the first and second coupling portions 510 and 520, 520 cause the first pendulum 200 and the second pendulum 300 to perform pendulum movement along the radial and circumferential directions of the support plate 100. Particularly, since the first and second coupling portions 510 and 520 are coupled to the first pendulum 200 and the second pendulum 300 in a rotatable manner to generate two displacement orders, the vibration preventing efficiency can be maximized have.

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: support plate 110: through hole
120: Pinhole
200: First pendulum 215: Coupling hole
300: Second pendulum 315: Coupling hole
500: coupling portion 510: first coupling portion
520: second coupling portion 550: eccentric shaft

Claims (6)

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 support plate;
A plurality of first pendulums disposed on one side of the support plate;
A plurality of first engaging parts coupled to one side of the support plate so as to be eccentrically rotatable and varying the position of the first pendulum by eccentric rotation according to centrifugal force and engaging with the support plate;
A plurality of second pendulums disposed on the other side of the support plate; And
A plurality of second engaging parts coupled to the other side of the support plate so as to be eccentrically rotatable and varying the position of the second pendulum by eccentric rotation according to centrifugal force and engaging with the support plate; / RTI >
Wherein the first coupling portion and the second coupling portion are coupled to each other through an eccentric shaft passing through the support plate.
delete The method according to claim 1,
Wherein the first and second coupling portions are circular in cross section and the first and second coupling portions are formed in the first and second pendulums so that first and second coupling holes are rotatably coupled, Vibration reduction device of torque converter for vehicle using pendulum.
The method according to claim 1,
The eccentric shaft
And a plurality of radially disposed radially disposed radially outwardly spaced apart from the center of the support plate by a predetermined distance.
5. The method of claim 4,
One end of the eccentric shaft
A first coupling portion coupled to the first coupling portion at a predetermined distance radially outwardly,
The other end of the eccentric shaft
And is coupled with a predetermined distance radially outward from a center of the second engagement portion.
6. The method of claim 5,
Wherein the first engaging portion and the second engaging portion are disposed opposite to each other.
KR1020150055970A 2015-04-21 2015-04-21 Vibration Reduction Apparatus for Motor Vehicle Torque Converter Using Eccentric Rotation Pendulum KR101668260B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0565943U (en) * 1992-02-14 1993-08-31 石川島播磨重工業株式会社 Eccentric bearing roller type winder device
US8161739B2 (en) * 2007-11-29 2012-04-24 Schaeffler Technologies AG & Co. KG Force transmission device in particular for power transmission between a drive engine and an output
WO2013118293A1 (en) * 2012-02-10 2013-08-15 トヨタ自動車株式会社 Torsional oscillation damping device
KR101358998B1 (en) 2012-12-14 2014-02-07 한국파워트레인 주식회사 Torque converter for vehicle
WO2014080776A1 (en) * 2012-11-26 2014-05-30 本田技研工業株式会社 Centrifugal pendulum damping device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0565943U (en) * 1992-02-14 1993-08-31 石川島播磨重工業株式会社 Eccentric bearing roller type winder device
US8161739B2 (en) * 2007-11-29 2012-04-24 Schaeffler Technologies AG & Co. KG Force transmission device in particular for power transmission between a drive engine and an output
WO2013118293A1 (en) * 2012-02-10 2013-08-15 トヨタ自動車株式会社 Torsional oscillation damping device
WO2014080776A1 (en) * 2012-11-26 2014-05-30 本田技研工業株式会社 Centrifugal pendulum damping device
KR101358998B1 (en) 2012-12-14 2014-02-07 한국파워트레인 주식회사 Torque converter for vehicle

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