KR100574395B1 - Balance adjusting method of damper clutch assembly and torque converter using the same - Google Patents

Abstract

The present invention discloses a balance adjustment method of a damper clutch assembly capable of easily adjusting a balance of a damper clutch assembly provided to a torque converter of an automatic transmission, and a torque converter using the same.

The balance adjustment method of the damper clutch assembly of the present invention, in the step of adjusting the balance of the damper clutch assembly, rotating the damper clutch to confirm the insertion position of the balance; And forcing a balance weight between the piston and the retaining plate after the step of confirming the insertion position.

Therefore, the present invention can automate the balance correction process of the damper clutch assembly to improve productivity as well as to reduce the manufacturing cost.

Damper Clutch, Lockup, Balance Weight, Forced Fitting, Retaining Plate

Description

Balance adjusting method of damper clutch assembly and torque converter using the same}

1 is a cross-sectional view showing the torque converter in a longitudinal direction to explain the embodiment according to the present invention.

2 is a view for explaining the main part of the present invention in FIG.

3 is a view showing a state in which the balance weight of the present invention is coupled.

4 is a cross-sectional view of the A-A part of FIG.

5 is a diagram illustrating a state in which a balance weight is coupled according to an embodiment of the present invention.

The present invention relates to a torque converter, and more particularly, to a balance adjustment method of a damper clutch assembly capable of easily adjusting the balance of a damper clutch assembly provided in a torque converter of an automatic transmission, and a torque converter using the same.

In general, the torque converter has a front cover connected to the crankshaft of the engine (not shown) to receive a driving force, the impeller rotates together with the front cover, and the turbine is disposed at a position opposite to the impeller. As the impeller rotates, the turbine rotates due to the fluid. In addition, a reactor (also referred to as a "stator") is disposed between the impeller and the turbine. The reactor serves to increase the torque change rate by changing the direction of the fluid flow delivered from the turbine to the impeller.

And the damper clutch is to obtain the maximum power transmission efficiency by allowing the input shaft and the output shaft of the torque converter is directly connected. The damper clutch is provided with a piston which serves to directly connect the front cover and the input shaft of the automatic transmission while moving in the direction of the rotation axis by operating hydraulic pressure. This conventional torque converter is coupled to the turbine with a driven plate so that it can rotate with the piston during operation of the lockup clutch.

In addition, the spring seat is coupled to one side of the piston to absorb the shock when the driven plate is in close contact with the driving force of the engine is directly transmitted to the transmission input shaft.

This damper clutch assembly adjusts the balance by replacing a spring seat of different weight during manufacture.

However, replacing the spring seat having different weights to adjust the balance of the damper clutch assembly has a problem that it is difficult to automate the balance correction process and the productivity may be reduced.

Therefore, the present invention has been proposed to solve the above problems, and an object of the present invention is to facilitate the balance adjustment of the damper clutch assembly to enable automation to improve productivity and thereby reduce the manufacturing cost of the damper The present invention provides a method for adjusting a balance of a clutch assembly and a torque converter using the same.

In order to achieve the above object, the present invention, the front cover coupled to the drive shaft of the engine receives a driving force; An impeller coupled to rotate with the front cover; A turbine disposed at a position opposite to the impeller, the turbine being rotated by a fluid that rotates together by the rotation of the impeller; A reactor disposed between the impeller and the turbine to change oil flow inside the impeller and the turbine; And a damper clutch coupled to the same shaft as the turbine and capable of directly transmitting a driving force of the engine transmitted through the front cover to a spline hub connected to the input shaft of the transmission; The damper clutch is disposed between the front cover and the turbine, the piston is axially coupled to the spline hub; A retaining plate coupled to the piston; It provides a torque converter including a balance weight coupled between the piston and the retaining plate.

In addition, the present invention in the process of adjusting the balance of the damper clutch assembly, rotating the damper clutch to confirm the insertion position of the balance; It provides a method for adjusting the balance of the damper clutch assembly comprising the step of forcibly engaging the balance weight between the piston and the retaining plate after the step of confirming the insertion position.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a half sectional view illustrating a torque converter according to an embodiment of the present invention.

The torque converter is connected to the crankshaft of the engine, the front cover (3) having a front boss (1) to receive the driving force, the impeller (5) coupled to the front cover (3) and rotate together, the impeller (5) Turbine (7), which is disposed in a position opposite to the rotation and is rotated together by the fluid in accordance with the rotation of the impeller (5), is fixed to the turbine (7) and splined to the input shaft (not shown) of the automatic transmission A spline hub 9 for delivery.

The spline hub 9 is coupled to a piston 11 which can be moved in the axial direction (front cover direction) by hydraulic pressure.

In addition, the retaining plate 15 is coupled to the piston 11 such that the springs 13 with the elastic force acting in the rotational direction are arranged.

The retaining plate 15 has spring supports 15a which are partially cut and bent in the turbine 7 direction. And the part where the above-mentioned spring support part 15a of the retaining plate 15 was provided forms the space part 15b (shown in FIG. 3).

Since the retaining plate 15 is coupled to the piston 11, there is a gap between the piston 11 and the retaining plate 15 in the space 15b. And the balance weight 17 is forcibly fitted between the gap formed by the piston 11 and the retaining plate 15.

It is preferable that the said balance weight 17 is formed in the shape in which the center part of the plate-shaped member was bent. This is for placing the balance weight 17 in the gap between the space portion 15b formed by the piston 11 and the retaining plate 15 and tapping the folded and protruding portion to facilitate the interference fitting operation. Of course, the balance weight 17 is preferably made of a size such that the length of the center portion is bent can be accommodated in the space (15b).

Referring to the method of coupling the balance weight 17 with respect to the present invention made as described above in detail as follows.

A separate device for adjusting the position of the balance is used to determine the position at which the balance weight 17 is fitted to the piston 11. Here, the position at which the balance weight 17 is to be fitted is determined among the spaces 15b.

When the space 15b into which the balance weight 17 is to be inserted is determined, as shown in FIG. 3, the balance weight 17 is disposed in the space 15b. At this time, the balance weight 17 is bent and the projecting portion (17a) is placed upwards (see Fig. 3), and bent at the center portion and the projecting portion tapping with a hammer or the like. Then, both ends of the balance weight 17 are inserted into the gap formed by the piston 11 and the retaining plate 15 to be pressed together and coupled (shown in FIGS. 4 and 5).

Therefore, it is possible to easily adjust the balance caused by the change in weight at a specific portion of the piston (11). The process for adjusting the balance can be easily applied to automation to reduce the manufacturing cost through improved productivity.

As described above, the present invention can automate the balance correction process of the damper clutch assembly by forcibly fitting the balance weight between the piston and the retaining plate to adjust the balance of the damper clutch assembly, thereby improving productivity and improving manufacturing costs. There is a saving effect.

Claims (4)

A front cover coupled to the drive shaft of the engine to receive the driving force; An impeller coupled to rotate with the front cover; A turbine disposed at a position opposite to the impeller, the turbine being rotated by a fluid that rotates together by the rotation of the impeller; A reactor disposed between the impeller and the turbine to change oil flow inside the impeller and the turbine; And A damper clutch coupled to the same shaft as the turbine and capable of transferring the driving force of the engine transmitted through the front cover to the input shaft of the transmission; The damper clutch is A piston disposed between the front cover and the turbine, the piston being movably coupled to the spline hub; A retaining plate coupled to the piston; A balance weight coupled by an interference fit between the piston and the retaining plate, the center portion being bent; Torque converter comprising a. delete delete In the process of adjusting the balance of the damper clutch assembly, Rotating the damper clutch to check the insertion position of the balance; Forcing a balance weight between the piston and the retaining plate after the step of confirming the insertion position; Balance adjustment method of the damper clutch assembly comprising a.

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