KR0132196Y1 - A clutch for a washing machine - Google Patents

Abstract

The present invention is formed in the lower center of the roller supporter installed in the clutch of the washing machine to contact with the ball on the top of the gear shaft is formed integrally with the contact grooves the same as the shape of the shaft supporter can reduce the noise generated during washing, the number of parts used It is possible to reduce the production cost due to the reduction of, and because of the simple structure is provided with many advantages, such as to improve the productivity.

To this end, the present invention is a clutch for a washing machine in which a contact groove 5 serving as a shaft supporter is integrally formed in a roller supporter 2 installed in a clutch 1 so as to be rubbed with a ball 4 of a gear shaft 3. Gear reduction device part support structure.

Description

Support structure of gear reduction device of clutch for washing machine

1 is a longitudinal sectional view showing a conventional washing machine.

2 is an enlarged longitudinal sectional view showing the clutch of FIG.

3 is an exploded longitudinal cross-sectional view showing a state in which the gear reduction unit of FIG.

Figure 4 is an exploded longitudinal cross-sectional view showing a state in which the gear reduction unit is coupled according to the present invention.

* Explanation of symbols for main parts of the drawings

1: clutch 2: roller supporter

3: gear shaft 4: ball

5: contact groove

The present invention relates to a support structure of a gear reduction device of a clutch for a washing machine, and more particularly, to reduce wear and noise generation of a gear reduction device installed in a clutch of a washing machine, and to reduce manufacturing cost as a simple structure. It would be.

In the conventional fully automatic washing machine, as shown in FIG. 1, the washing tub 8 is rotatably installed in the outer tub 7 in the main body 6, and the pulsator 9 is installed in the lower portion of the washing tub 8. The dewatering shaft 10 and the washing shaft 11 of the clutch 1 installed on the bottom surface of the outer tub 7 are fastened to the washing tub 8 and the pulsator 9 respectively, A motor pulley 13 and a clutch pulley 14 are respectively installed in the motor 12 and the clutch 1 installed on one side of the bottom, and the V-belt 15 is disposed between the motor pulley 13 and the clutch pulley 14. Is wound and installed to transmit power.

On the other hand, the clutch 1 described above is enlarged in FIG. 2 and FIG. 3, and has a spring block (below) in the lower portion of the gear shaft 3 that receives power directly from the clutch pulley 14 of the clutch 1. 16) is installed on the outer circumferential surface of the lower dehydration shaft 10a on the upper side of the spring block 16 and integrally with the upper dehydration shaft 10 and the brake drum and gear housing 17 for washing the rotational driving force of the motor 12. The first clutch spring 18, which transmits to the dehydration shaft only when dewatering, is not provided to the dehydration shaft, is installed.

In addition, the outer peripheral surface of the first clutch spring 18 is provided with a clutch boss 20 having teeth 19 formed on the surface thereof, and a side portion of the outer tub 7 so as to be connected to the teeth 19 of the clutch boss 20. A cam 22 is rotatably installed at a lower end of the lever 21 interlocked with a drain valve actuating solenoid valve (not shown) installed at an upper portion of the gear housing 17. One-way clutch 23 for preventing rotation is installed.

In addition, a ball 4 is cocked at an upper end of the gear shaft 3 in the gear housing 17, and a roller supporter guide 24 is inserted into the gear shaft 2, and the washing gear is mounted on the roller supporter guide 24. The planetary gear 25 which decelerally transfers the power of the shaft 3 to the washing shaft 11 is provided, and the pin shaft 26 is installed between the planetary gear 25 and the roller supporter 2a on the planetary gear 25. In the center of the lower end of the roller supporter (2a) is inserted into the shaft supporter 27 which is in surface contact with the ball 4 of the upper end of the gear shaft (3), the brake band on the outer peripheral surface of the brake drum combined gear housing (17) 28 is mounted and comprised.

Therefore, in the washing of the automatic washing machine, the washing tank 8 is generally stopped, and the washing stroke for washing the laundry by left and right stirring of the pulsator 9 is performed. The data 9 together rotate at high speed at the same speed to perform the dehydration stroke.

That is, when washing laundry, as shown in FIGS. 1 to 3, the forward rotational force of the motor 12 transmitted to the clutch 1 as the V-belt 15 is determined by the first clutch spring 18. The cam 22 should be provided at the toothed portion 19 of the clutch boss 20 provided on the outer circumferential surface of the first clutch spring 18 but should be transmitted to the lower dehydration shaft 10 by the spring block 16 in the winding direction. Since the interlocking and pushing, the first clutch spring 18 is prevented from being locked, thereby preventing power transmission to the dehydration shaft 10.

Therefore, the rotational power transmitted to the gear shaft 3 is decelerated through the planetary gear 25 in the brake drum combined gear housing 17 and transmitted to the washing shaft 11, and the pulsing fixed on the washing shaft 11. Washing is performed by rotating the eater (9).

In addition, since the reverse rotational power of the motor 12 is the direction in which the first clutch spring 18 is released, the rotational power of the gear shaft 3 cannot be transmitted to the dehydration shaft 10 even at this time. Then, the washing shaft 11 is transferred to the washing shaft 11, and the washing is performed by rotating the pulsator 9 fixed on the washing shaft 11.

In addition, a reaction rotation torque is generated in the gear high weight 17 when decelerating through the planetary gear 25. The one-way clutch 23 prevents reverse rotation of the dewatering shaft 10 by the reaction rotation torque. The rotation of the dehydration shaft 10 is prevented by the brake band 28 mounted on the outer circumferential surface of the brake drum combined gear housing 17 at a predetermined pressure.

In addition, when the laundry is dewatered, the rotational power of the motor 12 transmitted to the clutch 1 as the V-belt 15 always rotates in the forward direction. 1 The clutch spring 18 and the spring block 16 are in close contact with each other, the solenoid valve for drain valve operation is turned on to pull the brake lever 29 and at the same time the cam 22 of the lever 21 interlocked with the brake lever 29. ) Is separated from the toothed portion 19 of the clutch boss 20.

At the same time, since the brake band 28 is disengaged from the outer circumferential surface of the gear housing 17, the rotational force of the spring block 16 is integrated with the gear housing 17 and the gear housing 17. ) To dehydrate the laundry by rotating at high speed in one direction.

Then, when dehydration is completed or the dehydration process is forcibly stopped during dewatering, when the drain valve actuating solenoid valve is turned off to release the lever 21, the cam 22 is the teeth 19 of the clutch boss 20. Caught in between.

At the same time, as the brake band 28 presses the outer circumferential surface of the gear housing 17 to switch to the washing mode and stops the rotation operation of the gear housing 17, the gear housing 17 and the upper dewatering shaft 10 are closed. The washing tank 8 fastened through is also stopped.

However, such a conventional washing machine has a lower center of the roller supporter 2a in which the shaft supporter 27 and the shaft supporter 27 are inserted by the stroke of the gear shaft 3 installed in the clutch 1 during washing. Wear and noise with the upper part of the planetary gear 25 are a factor of increasing noise during washing, shortening the service life of parts, and using a lot of used parts during assembly, leading to a decrease in productivity and an increase in manufacturing cost. There were many problems such as being done.

The present invention is to solve the above problems, it is possible to reduce the wear and noise generation of the gear reduction unit installed in the clutch of the washing machine, as well as to improve the production cost and productivity by integrating the parts as a simple high It is an object of the present invention to provide a gear reduction device portion support structure of a clutch for a washing machine.

In order to achieve the above object, the present invention is a gear reduction device support structure of a clutch for a washing machine in which a contact groove serving as a shaft supporter is integrally formed on a roller supporter installed in a clutch so as to be rubbed with a ball of a gear shaft.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 4.

4 is an exploded longitudinal sectional view showing the state in which the gear reduction unit is coupled according to the present invention, and the ball 4 is caulked on the upper end of the gear shaft 3 in the gear housing 17 installed in the clutch 1 of the washing machine. The gear shaft 3 is connected to the planetary gear 25 through which the power of the gear shaft 3 is reduced and transmitted to the washing shaft 11 through the roller support guide 24 at the lower end thereof. The upper end of 25 is covered by the roller supporter 2.

In addition, the insertion groove 200 is formed in the center of the upper surface of the roller supporter 2 so that the washing shaft 11 is inserted, and the lower end of the insertion groove 200 is sealed, so that the washing shaft 11 and the gear are rotated when the washing shaft rotates. There is no collision of the shaft (3), the lower end of the gear shaft (3) so that the upper end of the gear shaft (3) supports the supporter (2) and maintain the gap with the lower end of the gear housing (17) The groove 5 which the upper end can contact the ball 4 is formed integrally.

The present invention configured as described above has a simple structure as shown in FIG. 4 so as to be rubbed with the ball 4 on the top of the gear shaft 3 in the center of the lower end of the roller supporter 2 installed in the clutch 1 of the washing machine. Since the contact grooves 5 having the same shape as the supporter are integrally formed, the contact grooves 5 may serve as the shaft supporters, thereby reducing wear and noise.

In addition, an insertion groove 200 is formed in the center of the upper surface of the roller supporter 2 so that the washing shaft 11 is inserted, and the lower end of the insertion groove 200 is sealed, and the washing shaft 11 and the gear when the washing shaft rotates. There is no collision of the shaft 3.

In addition, the center of the lower end of the roller supporter (2) is formed with a groove (5) that can be in contact with the ball (4) of the upper end of the gear shaft (3) integrally so that the upper end of the gear shaft (3) roller supporter (2) ) And a gap with the bottom of the gear housing 17 can be maintained. In addition, it is possible to reduce the use parts to reduce the manufacturing cost, there is an effect that can improve the productivity.

On the other hand, since the description of the operation when washing and dehydrating in the washing machine is the same as in the prior art is omitted in the present invention.

As described above, the present invention is the same contact groove 5 as the shape of the shaft supporter to be rubbed with the ball 4 of the upper end of the gear shaft (3) in the center of the lower end of the roller supporter (2) installed in the clutch (1) of the washing machine (5). ) Can be formed integrally to reduce the noise generated during washing, to reduce the manufacturing cost due to the reduction of the number of parts used, and to improve the productivity due to the simple structure is very equipped with many advantages It is a useful design.

Claims (1)

A clutch of a washing machine having a gear housing, a gear shaft penetrating through the gear housing, a roller supporter guide and a roller supporter coupled to an upper portion thereof, and a planetary gear provided between the roller supporter and the roller supporter guide. The ball is cocked in the groove on the top of the gear shaft in the housing, the insertion groove is formed in the center of the upper surface of the roller supporter and the lower end of the insertion groove is sealed, the collision of the washing shaft and the gear shaft when rotating the washing shaft In the center of the lower surface of the roller supporter is formed with a groove which is in contact with the ball of the upper end of the gear shaft integrally, so that the upper end of the gear shaft supports the roller supporter to maintain the gap with the lower end of the gear housing Gear reduction device support structure of the clutch for a washing machine, characterized in that.