KR20140007597A - Torque convertor for vehicle and method for manufacturing the same - Google Patents

Torque convertor for vehicle and method for manufacturing the same Download PDF

Info

Publication number
KR20140007597A
KR20140007597A KR1020120074686A KR20120074686A KR20140007597A KR 20140007597 A KR20140007597 A KR 20140007597A KR 1020120074686 A KR1020120074686 A KR 1020120074686A KR 20120074686 A KR20120074686 A KR 20120074686A KR 20140007597 A KR20140007597 A KR 20140007597A
Authority
KR
South Korea
Prior art keywords
impeller
filler metal
blade
impeller shell
turbine
Prior art date
Application number
KR1020120074686A
Other languages
Korean (ko)
Inventor
양상민
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 KR1020120074686A priority Critical patent/KR20140007597A/en
Publication of KR20140007597A publication Critical patent/KR20140007597A/en

Links

Images

Classifications

    • 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
    • F16H41/26—Shape of runner blades or channels with respect to function
    • 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
    • F16H41/28—Details with respect to manufacture, e.g. blade attachment
    • 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
    • F16H2041/243—Connections between pump shell and cover shell of the turbine
    • 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
    • F16H41/28—Details with respect to manufacture, e.g. blade attachment
    • F16H2041/285—Details with respect to manufacture, e.g. blade attachment of stator blades
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

Disclosed are a torque converter for a vehicle and a manufacturing method thereof capable of improving workability when a blade is connected to a turbine shell or an impeller shell. The torque converter for the vehicle comprises a front cover; an impeller which is combined with the front cover and is rotated with front cover; a turbine which is arranged in a position which is faced to the impeller; a reactor which is positioned between the impeller and the turbine and which delivers the inflow of oil to the impeller; a lock-up clutch which comprises a piston connecting the front cover and the turbine; and the torsional damper which is combined with the lock-up clutch and which receives impact and vibration in a rotation direction. The impeller comprises an impeller shell and a plurality of blades connected to the impeller shell. A filler metal insertion groove in which a filler metal is inserted into a part of being connected to the impeller shell is offered to the blade.

Description

Torque convertor for vehicle and method for manufacturing the same

The present invention relates to a vehicle torque converter and a method for manufacturing the same, which improves workability when the blade is coupled to a turbine shell or an impeller shell.

Generally, a torque converter is installed between a vehicle engine and a transmission to transmit the driving force of the engine to the transmission using a fluid. Such a torque converter includes an impeller rotating under the driving force of the engine, a turbine rotated by the oil discharged from the impeller, and a reactor for increasing the rate of torque change by directing the flow of oil flowing back to the impeller in the direction of rotation of the impeller Quot; stator ").

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

This lockup clutch includes a piston that is axially movable on the turbine shaft. The piston is engaged with a friction material which is in friction contact with the front cover. The piston is fitted with a torsional damper capable of absorbing shock and vibration acting in the direction of rotation of the shaft when the friction material is engaged with the front cover.

The impeller described above includes an impeller shell and a plurality of blades coupled to the impeller shell. The turbine also includes a turbine shell and a plurality of blades coupled to the turbine shell.

Referring to the process of coupling the blade to the conventional impeller shell as follows.

An impeller shell provided with a through hole into which the blade can be fitted is conveyed along the automatic transport. The operator or industrial robot then inserts the blade into the through hole of the impeller shell and places the filler material at the same time as the impeller shell and the blade are engaged. The impeller shell and the blade are joined by fusion welding by heating the filler metal using a heating device.

However, when the impeller shell is transported by the automatic transfer device in the state where the filler metal is raised, the filler material may be out of position and may be fusion welded.

As described above, the conventional technology has a problem in that the welding position is changed because the position of the filler metal is changed in the process of transferring the impeller shell, so that the position of engagement of the impeller shell and the blade is changed. The improper coupling of the impeller shell and the blade may lead to a failure of the torque converter, which causes a problem of deterioration in quality and productivity.

In addition, there is a problem in that productivity is reduced due to a poor coupling of the impeller shell and the blade in the automated assembly process for mass production.

Therefore, the present invention has been proposed to solve the above problems, the object of the present invention is to increase the quality by preventing the coupling failure when the impeller shell and blade or turbine shell and blade is combined by welding in an automated process Another object of the present invention is to provide a torque converter for a vehicle and a method of manufacturing the same, which improve productivity.

In order to accomplish the above object, the present invention provides a turbine for a turbine, comprising: a front cover; an impeller coupled to the front cover to rotate together; a turbine disposed at a position facing the impeller; A lockup clutch having a piston directly connecting the front cover and the turbine, a local damper coupled to the lockup clutch and absorbing impact and vibration acting in a rotating direction, Lt; / RTI >

The impeller includes an impeller shell and a plurality of blades coupled to the impeller shell, and the blade provides a vehicle torque converter provided with a filler material insertion groove into which filler material for welding is inserted into a portion coupled with the impeller shell.

The filler metal insertion groove is preferably provided at the tip of the blade adjacent to the impeller shell.

The filler metal may include a curved groove portion inserted into the filler metal insertion groove and an extension portion which is bent from the curved groove portion and extends in parallel with each other.

The present invention also provides a method for manufacturing an impeller shell of a vehicle torque converter, the method comprising: transferring an impeller shell provided with a blade insertion hole to an automated assembly device, wherein a plurality of filler material insertion grooves are provided in the blade insertion hole of the moved impeller shell. It provides a method of manufacturing a torque converter for a vehicle comprising the steps of disposing a filler material, disposing the filler material in the filler metal insertion groove, heating the filler material with a heating apparatus.

The method may further include processing the filler metal insertion grooves at the ends of the plurality of blades before arranging the plurality of blades provided with the filler metal insertion grooves in the blade insertion holes of the impeller shell.

Such a present invention has the effect of increasing the quality as well as increase the productivity by preventing the coupling failure because the filler metal is always placed in a fixed position and fused when combining the impeller shell and the blade using an automated assembly device.

1 is a half sectional view of a torque converter for explaining an embodiment of the present invention.
2 is a view illustrating an impeller shell of a torque converter to explain an embodiment of the present invention.
3 is a view showing an impeller blade to explain an embodiment of the present invention.
4 is a view illustrating a filler material for inserting an impeller blade into an impeller shell to explain an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out 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.

FIG. 1 is a half sectional view of an automotive torque converter cut in an axial direction to explain an embodiment of the present invention, and FIG. 2 is a view illustrating a main part of the torsional damper of FIG. 1, and illustrates a vehicle torque converter.

The torque converter according to the embodiment of the present invention includes a front cover 4 connected to a crankshaft of the engine and rotated, an impeller 6 connected to the front cover 4 and rotated together with the impeller 6, And a reactor 10 (or a stator) which is positioned between the impeller 6 and the turbine 8 to change the flow of the oil from the turbine 8 and transfer it 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. And a lockup clutch 14 used as a means for directly connecting the engine and the transmission are 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 friction material 18 frictionally contacting the front cover 4 is engaged with the piston 16.

The lockup clutch 14 is coupled with a torsional damper 20 which serves to absorb a twisting force acting in the direction of rotation of the shaft and attenuate vibrations when the friction material 18 is brought into close contact with the front cover 4 do.

The torsional damper 20 is provided with springs 31 which absorb shocks and vibrations acting in the circumferential direction. These springs 31 are preferably arranged in the circumferential direction (rotational direction) and comprise compression coil springs.

In the above description the impeller 6 comprises an impeller shell 6a and a plurality of blades 6b coupled to the impeller shell 6a. The turbine 8 also includes a turbine shell 8a and a number of further blades 8b coupled to the turbine shell 8a.

In the embodiment of the present invention, since the structural features of the impeller 6 and the structural features of the turbine have the same or similar structure, the structure and manufacturing method of the impeller 6 will be described, and the description of the turbine will be described for the impeller. Replace with.

The impeller shell 6a is provided with blade insertion holes 6c into which the blades 6b can be fitted at regular intervals.

The blade 6b is provided with fitting projections 6d which are made in a substantially fan shape and inserted into the blade insertion hole 6c of the impeller shell 6a, as shown in FIG.

The blade 6d is provided with the filler metal insertion groove 6e at one side of the tip portion. The filler metal insertion groove 6e may be formed in a semi-circular or arc-shaped fan shape. The filler metal insertion groove 6e is preferably provided at the end where the blade 6d and the impeller shell 6a meet.

The filler metal 37 is fitted into the filler metal insertion groove 6e. The filler metal 37 is for fusion bonding the impeller shell 6a and the blade 6b. As shown in FIG. 4, such filler material forms a cylindrical shape bent in a U shape.

That is, the filler metal 37 includes a curved groove portion 37a fitted into the filler metal insertion groove 6e and an extension portion 37b which is bent from the curved groove portion 37a and extends in parallel with each other.

Referring to the process of assembling such an impeller (6) using an automatic assembly device as follows.

First, blade insertion holes 6c are made in the impeller shell 6 at regular intervals. This impeller shell 6 is conveyed by an automated conveying device such as a conveying conveyor to sandwich the plurality of blades 6b into the blade insertion holes 6c, respectively.

At this time, the fitting projection 6d of the blade 6b is fitted into the blade insertion hole 6c.

And the curved groove part 37a of the filler metal 37 is arrange | positioned in the filler metal insertion groove 6e of the impeller shell 6.

At this time, the filler metal 37 can maintain the state inserted in the filler metal insertion groove (6e) even if the impeller shell (6a) moves along the conveyor does not deviate or stray.

And the filler metal 37 is heated using a heating apparatus. As the filler metal 37 is heated, the impeller shell 6a and the blade 6b are joined by fusion welding.

Since the filler metal 37 is disposed in the filler metal insertion groove 6e of the impeller shell 6a, the welded position is not only constant at all times but also can be satisfactorily obtained in the welded state.

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.

4. front cover,
6. Impeller 6a. Impeller shell, 6b. Blade, 6c. Blade insertion hole,
6d. Fitting, 6e. Filler Insert Groove,
8. Turbine, 8a. Turbine shell, 8b. blade,
10. Reactor,
14. Lock-up clutch, 16, piston,
18. Friction material, 20. Local damper,
31.Spring,
37. Dragonfly, 37a. Curved groove, 37b. Extension portion

Claims (5)

Front cover,
An impeller coupled to the front cover and rotating together,
A turbine disposed at a position facing the impeller,
A reactor positioned between the impeller and the turbine to convert the flow of oil from the turbine to the impeller side,
A lockup clutch having a piston directly connecting the front cover and the turbine,
And a local damper coupled to the lockup clutch for absorbing shock and vibration acting in a rotating direction,
The impeller includes an impeller shell and a plurality of blades coupled to the impeller shell,
The blade torque converter for a vehicle is provided with a filler material insertion groove is inserted into the filler material for fusion to the portion coupled to the impeller shell. The method according to claim 1,
The filler metal insert groove
And a vehicle torque converter provided at a distal end of the blade adjacent to the impeller shell. The method according to claim 1,
The filler metal is
A curved groove portion inserted into the filler metal insertion groove;
Extension parts that are bent in the curved grooves and extend in parallel to each other
Vehicle torque converter comprising a. In the method for manufacturing an impeller shell of a vehicle torque converter,
Transferring the impeller shell provided with the blade insertion hole to the automated assembly device,
Disposing a plurality of blades provided with filler metal insertion grooves in the blade insertion holes of the moved impeller shell;
Disposing the filler material in the filler metal insertion groove,
Welding the filler metal by heating
Method for manufacturing a vehicle torque converter comprising a. The method of claim 4,
Before placing a plurality of blades provided with filler metal insert grooves in the blade insertion hole of the impeller shell
Machining the filler metal insertion groove at the ends of the plurality of blades
Method of manufacturing a vehicle torque converter further comprising.
KR1020120074686A 2012-07-09 2012-07-09 Torque convertor for vehicle and method for manufacturing the same KR20140007597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120074686A KR20140007597A (en) 2012-07-09 2012-07-09 Torque convertor for vehicle and method for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120074686A KR20140007597A (en) 2012-07-09 2012-07-09 Torque convertor for vehicle and method for manufacturing the same

Publications (1)

Publication Number Publication Date
KR20140007597A true KR20140007597A (en) 2014-01-20

Family

ID=50141897

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120074686A KR20140007597A (en) 2012-07-09 2012-07-09 Torque convertor for vehicle and method for manufacturing the same

Country Status (1)

Country Link
KR (1) KR20140007597A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389977A (en) * 2014-09-22 2015-03-04 重庆红宇精密工业有限责任公司 Hydraulic torque converter with welding pollution preventing stricture
KR101582337B1 (en) * 2015-07-31 2016-01-05 송명식 A repair methode of torque converter
KR20180099303A (en) 2017-02-28 2018-09-05 주식회사 케이에이알 Method for manufacturing torque converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389977A (en) * 2014-09-22 2015-03-04 重庆红宇精密工业有限责任公司 Hydraulic torque converter with welding pollution preventing stricture
KR101582337B1 (en) * 2015-07-31 2016-01-05 송명식 A repair methode of torque converter
KR20180099303A (en) 2017-02-28 2018-09-05 주식회사 케이에이알 Method for manufacturing torque converter

Similar Documents

Publication Publication Date Title
CN105221655B (en) Vibration absorber
US9360058B2 (en) Drive assembly including drive tab fixed to turbine shell and method of forming
CN106715968B (en) Torque converter including a ball clutch
US20140339042A1 (en) Torque converter
JP2012077820A (en) Hydraulic transmission
KR20140007597A (en) Torque convertor for vehicle and method for manufacturing the same
JP2017166672A (en) Torque converter
US9702444B2 (en) Method for manufacturing fluid power transmission
KR101376783B1 (en) Torque convertor having twin mass damper
KR101152427B1 (en) Method to connect lug to torque converter and torque converter manufacturing the same
JP5688113B2 (en) Lock-up device for torque converter
JP2012077810A (en) Hydraulic transmission apparatus and method of manufacturing the same
JP2017514078A (en) Torque transmission device for automobile
KR102432575B1 (en) Torque converter with finger-tabbed soldered inertia ring
KR101339388B1 (en) Torque convertor for vehicle and method for manufacturing the same
KR102190131B1 (en) Pendulum Damper and Torque Converter for Motor Vehicle Having the Same
KR100822481B1 (en) Manufacturing method of impeller and turbine of torque converter for vehicle
US8484960B2 (en) Torque converter with centered turbine
JP5748704B2 (en) Core structure in torque converter
KR101738065B1 (en) Torque convertor for vehicle
KR20140073716A (en) Torque converter for vehicle
KR20140076315A (en) Torque converter for vehicle
CN202992012U (en) Torque fluctuating absorber
JP2007051752A (en) Fluid type torque transmission device
KR20140079146A (en) Torque convertor for vehicle

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E601 Decision to refuse application