KR20130045720A - Torque converter of vehicle - Google Patents

Torque converter of vehicle Download PDF

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Publication number
KR20130045720A
KR20130045720A KR1020110110115A KR20110110115A KR20130045720A KR 20130045720 A KR20130045720 A KR 20130045720A KR 1020110110115 A KR1020110110115 A KR 1020110110115A KR 20110110115 A KR20110110115 A KR 20110110115A KR 20130045720 A KR20130045720 A KR 20130045720A
Authority
KR
South Korea
Prior art keywords
torque converter
turbine
head
impeller
extension
Prior art date
Application number
KR1020110110115A
Other languages
Korean (ko)
Inventor
권의섭
장재덕
주인식
Original Assignee
한국파워트레인 주식회사
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 한국파워트레인 주식회사 filed Critical 한국파워트레인 주식회사
Priority to KR1020110110115A priority Critical patent/KR20130045720A/en
Publication of KR20130045720A publication Critical patent/KR20130045720A/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
    • 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
    • F16F15/121—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 using springs as elastic members, e.g. metallic springs
    • 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
    • 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
    • F16H2045/0226—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 comprising two or more vibration dampers

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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)
  • Mechanical Operated Clutches (AREA)

Abstract

The present invention discloses a vehicle torque converter assembled by rivets with improved fixing performance.
The vehicle torque converter of the present invention includes a front cover, an impeller coupled to the front cover to rotate together, a turbine disposed at a position facing the impeller, a stator positioned between the impeller and the turbine to change the flow of oil from the turbine to the impeller side, A lock-up clutch having a piston directly connecting the front cover and the turbine, and a tonic damper coupled to the lock-up clutch to absorb shock and vibration acting in a rotational direction,
The torsional damper is elastically supported by the retaining plate coupled to the piston, the compression coil springs circumferentially disposed on the retaining plate to absorb vibration and shock in the rotational direction, and the compression coil springs. And a driven plate that transmits the transmitted driving force to the spline hub, wherein the piston and retaining plate are joined by rivets, the rivets being provided with an extension extending from the head, torso and the outer center of the head.

Description

Torque converter of vehicle

The present invention relates to a torque converter for a vehicle assembled by rivets with improved fixing performance.

In general, the rivet is a fastening means for fastening by pressing the end by inserting the steel plate or the steel material in the drilled hole. This rivet is divided into the head 101 and the trunk 103, as shown in FIG. 6 is a cross-sectional view illustrating a state in which conventional iron plates 105 and 107 are coupled by rivets, and FIG. 7 is an enlarged view of an enlarged portion A of FIG. 6. Conventional rivets have a fastening force by generating a space 109 in the process of pressing the body 103 between the sides of the rivet body 103 and the side of the holes of the iron plate 105, 107 after tightening the iron plate (105, 107) There is a falling problem.

In particular, when the rivet is used as a means for fastening the plate of the torque converter for a vehicle that requires excellent durability and maintains a precise coupling state, as described above, when a space is formed in the body 103 of the rivet, a coupling failure occurs and torque There is a problem that the durability of the converter is poor.

Accordingly, the present invention has been proposed to solve the above problems, and an object of the present invention is to combine a piston and a retaining plate of a vehicle torque converter or a spline hub for transmitting a driving force to a driven plate and a transmission. The present invention provides a torque converter that maintains a firm coupling by rivets to increase durability and improve quality.

In order to achieve the object of the present invention as described above, the present invention is a front cover, an impeller coupled to the front cover to rotate together, a turbine disposed in a position facing the impeller, located between the impeller and the turbine Stator for changing the flow of oil from the turbine to the impeller side, Lockup clutch with a piston directly connecting the front cover and the turbine, Torsional damper coupled to the lockup clutch to absorb the shock and vibration acting in the rotational direction Including,

The torsional damper is a retaining plate coupled to the piston, compression coil springs circumferentially disposed on the retaining plate to absorb vibrations and shocks in a rotational direction, and are elastically supported by the compression coil springs and compressed. And a driven plate for transmitting the driving force transmitted through the coil spring to the spline hub, wherein the piston and the retaining plate are coupled by rivets, the rivets extending from the head, the body and the outer center of the head. Provided is an automotive torque converter provided with an extension.

The extension is preferably made of a circular shape having a constant height in the head.

Preferably, the extension part is a plane that forms the outside.

Preferably, the extension part is connected to the head part by an inclined surface.

The diameter of the extension is preferably made smaller than the diameter of the head.

The thickness of the extension is preferably made in the range of 10% -30% compared to the thickness of the head.

The diameter of the extension is preferably made smaller than the diameter of the body portion.

The present invention as described above, when the piston and the retaining plate, the driven plate and the spline hub of the torque converter is riveted, there is no space around the body of the rivet, the body of the rivet is filled with a rigid coupling state to maintain the durability of the torque converter It has the effect of increasing the quality and improving the quality.

1 is a half sectional view of a torque converter for explaining an embodiment of the present invention.
2 is a view showing the shape of the rivets for explaining an embodiment of the present invention.
3 is a cross-sectional view illustrating a piston and a retaining plate of the torque converter coupled by rivets to explain an embodiment of the present invention.
4 is an enlarged view of a portion B of FIG. 3.
5 is a view showing the shape of a conventional rivet.
Figure 6 is a cross-sectional view showing a state in which the iron plate combined with a conventional rivet.
FIG. 7 is an enlarged view of a portion A of FIG. 6.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a cross-sectional view for explaining an embodiment of the present invention, showing a torque converter.

The torque converter according to the embodiment of the present invention has a front cover (1) connected to the crankshaft on the engine side to rotate, a position facing the impeller (3) and the impeller (3) connected to and rotated together with the front cover (1). And a stator 7 positioned between the impeller 3 and the turbine 5 to change the flow of oil coming out of the turbine 5 and transfer it to the impeller 3 side. The stator 7 delivering oil to the impeller 3 side has the same center of rotation as the front cover 1. And the lockup clutch 9, which is used as a means for directly connecting the engine and the transmission, is disposed between the front cover 1 and the turbine 5.

The lockup clutch 9 is formed in a substantially disk shape and has a piston 11 that can move in the axial direction.

And the piston 11 is coupled to the friction material 13 in friction contact with the front cover (1).

In addition, the lockup clutch 9 is coupled with a torsional damper 15 that absorbs the torsional force acting in the rotational direction of the shaft and attenuates vibration when the friction material 13 is in close contact with the front cover 1. do.

The torsional damper 15 is provided with compression coil springs 17 which absorb shock and vibration acting in the circumferential direction. These compression coil springs 17 are preferably arranged in the circumferential direction (rotation direction).

These compression coil springs 17 are supported by a retaining plate 19 which is coupled to the piston 11 described above. And the compression coil springs 17 are elastically supported by the driven plate 21 coupled to the turbine 5. That is, the compression coil springs 17 are elastically supported between the retaining plate 19 and the driven plate 21 to absorb vibrations and shocks in the rotational direction (circumferential direction).

The above-mentioned driven plate 21 is coupled to the spline hub 27 which transmits the driving force to the transmission together with the turbine shell of the turbine 5 by rivets 19.

Embodiment of the present invention will be described that the piston 11 and the retaining plate 19 is coupled to the rivet 29. The rivet 29 of the embodiment of the present invention, as shown in FIG. 2, includes a head 31, a body 33, and an extension 35.

Head 31 is connected to the body portion 33 has a diameter larger than the diameter of the body portion 33. The body 33 may be inserted into a hole drilled in the piston 11 and the retaining plate 19.

Extension portion 35 is provided to protrude at a constant height in the outer center of the head (31). Extension portion 35 is made of a circular shape, the front end surface exposed to the outside is preferably made of a flat.

And the extension portion 35 is the portion connected to the head 31 forms an inclined surface (35a). This inclined surface 35a is to prevent the extension number 35 from being deformed too easily when riveting.

In addition, the diameter r of the extension part 35 is preferably made smaller than the diameter R of the head part 31.

And the thickness t of the extension part 35 is preferably made in the range of 10% -30% compared to the thickness T of the head 31.

In addition, the diameter of the extension portion 35 is preferably made smaller than the diameter of the body portion 33. The extension part 35 may be pushed toward the body part 33 when the rivet joint is connected to prevent the body part 33 from being deformed while creating a space.

The embodiment of the present invention also combines the driven plate 21 of the torque converter, the turbine shell of the turbine 5, and the spline 27 which transmits the driving force to the transmission, as described in the embodiment of the present invention. Can be used.

The present invention made as described above is described as follows the operation of the embodiment.

The body portion 33 of the rivet 19 is inserted into the hole drilled in the piston 11 and the retaining plate 19 and the extension 35 is knocked with a tool. Then the body portion 33 is deformed to become a rivet joint.

At this time, the extension part 35 on the outside of the head part 31 is pushed toward the body part 33 side, and there is no empty space in the body part 33, which is a rivet joint (indicated by c in FIG. 4). .

That is, as shown in FIG. 3, even if the thickness of the extension part 35 is reduced, it is pushed toward the body part 33 so that the void portion does not occur in the side portion of the body part 33 even when the body part 33 is deformed. do.

Therefore, the body portion 33 of the rivet joint portion has a rigid coupling structure without a void space can increase the durability and quality of the torque converter.

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 exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

1.front cover,
3. impeller,
5. turbine,
7. Stator,
9. lockup clutch,
11.piston,
13. friction material,
15. torsional dampers,
17. compression coil spring,
19. retaining plate,
21. driven plate,
27.Spline,
29. Rivets,
31.Head,
33.
35. Extension, 35a. incline

Claims (7)

A front cover, an impeller coupled to the front cover to rotate together, a turbine disposed at a position facing the impeller, a stator positioned between the impeller and the turbine to change the flow of oil from the turbine to the impeller side, the front A lock-up clutch having a piston directly connecting the cover and the turbine, a tonic damper coupled to the lock-up clutch to absorb shock and vibration acting in a rotational direction,
The local damper
Retaining plate coupled with the piston,
Compression coil springs disposed in the retaining plate in the circumferential direction to absorb vibration and shock in the rotational direction,
A driven plate elastically supported by the compression coil springs to transmit a driving force transmitted through the compression coil spring to the spline hub,
Said piston and said retaining plate being joined by rivets, said rivets being provided with a head, a body and an extension extending from an outer center of said head. The method according to claim 1,
The extension portion
A torque converter for a vehicle having a predetermined height at the head and formed in a circular shape. The method according to claim 1,
The extension portion is a vehicle torque converter consisting of a front end surface exposed to the outside flat. The method according to claim 1,
The extension part is a vehicle torque converter, the edge portion is inclined surface and connected to the head. The method according to claim 1,
The diameter of the extension
A vehicle torque converter made smaller than the diameter of the head portion. The method according to claim 1,
The thickness of the extension
A torque converter for a vehicle made in a range of 10% -30% compared to the thickness of the head. The method according to claim 1,
The diameter of the extension
A vehicle torque converter made smaller than the diameter of the body portion.
KR1020110110115A 2011-10-26 2011-10-26 Torque converter of vehicle KR20130045720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110110115A KR20130045720A (en) 2011-10-26 2011-10-26 Torque converter of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110110115A KR20130045720A (en) 2011-10-26 2011-10-26 Torque converter of vehicle

Publications (1)

Publication Number Publication Date
KR20130045720A true KR20130045720A (en) 2013-05-06

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Application Number Title Priority Date Filing Date
KR1020110110115A KR20130045720A (en) 2011-10-26 2011-10-26 Torque converter of vehicle

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KR (1) KR20130045720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717004A (en) * 2012-07-11 2012-10-10 重庆宝钢汽车钢材部件有限公司 Steel plate blanking blocking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717004A (en) * 2012-07-11 2012-10-10 重庆宝钢汽车钢材部件有限公司 Steel plate blanking blocking device
CN102717004B (en) * 2012-07-11 2014-12-10 重庆宝钢汽车钢材部件有限公司 Steel plate blanking blocking device

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