KR100191508B1 - Power transfer apparatus of a washer - Google Patents

Abstract

The present invention relates to a power transmission device of a washing machine, the power generating means disposed in the lower portion of the washing tank to generate power during washing and dehydration, and the lower circumference of the drive shaft to rotate the pulsator under the power of the power generating means Washing driving means mounted on the and the dehydration driving means mounted on the lower periphery of the lower connector to rotate the dehydration tank under the power of the dynamic generating means, respectively, so as to reduce the assembly work and time to work efficiency It can be improved, and the manufacturing cost is down and there are various effects that can significantly reduce the noise during washing and dehydration.

Description

Power transmission of washing machine

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

2 is a cross-sectional view showing a conventional power transmission device.

3 is a longitudinal sectional view showing a power unit according to an embodiment of the present invention.

Figure 4 is a longitudinal sectional view showing a power transmission device according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

50: power generating means 51: washing driving means

53: dewatering driving means 56: the first magnetic member

57: second magnetic member 70: drive shaft

71: sun gear member

The present invention relates to a power transmission device for a washing machine, and in particular, a simple structure and convenience, not only easy to convert the power during washing and dehydration, but also to improve the noise vibration and reduce the number of parts to reduce the defective factors Relates to a power train.

In general, as shown in FIG. 1, a washing tank 2 is mounted in the washing machine main body 1, and a driving means 3 for generating power is mounted in the lower center of the washing tank 2. Power transmission means 5 for receiving the power of the drive means 3 to the belt 4 and rotating the dehydration tank and the pulsator, which is described later, is mounted on the lower side of the center.

In addition, a dehydration tank 6 that receives power and rotates at the front end of the power transmission means 5 is mounted in the washing tank 2, and a lower surface of the dewatering tank 6 has the power transmission means 5. The pulsator 7 which washes by forming a water flow while being reversed in the dehydration tank 6 by receiving the power of this is provided.

In the figure, reference numeral 8 denotes a water supply means, and 9 denotes a drain means.

In the washing machine configured as described above, when a certain amount of laundry and detergent are put into the dehydration tank 6, power is applied, and washing conditions are selected, cold water or hot water is supplied into the dehydration tank 6 through the water supply means 8. When the cold water or hot water rises to a certain height of the dehydration tank 6, the cold water or hot water is mounted on the bottom surface of the dehydration tank 6 via the power transmission means 5 according to the operation of the power transmission means 5. The pulsator 7 inverts several times to form a stream of water to perform the washing process.

When the washing is completed according to the washing process, the washing water is drained to the outside in the washing machine main body 1 by the operation of the drainage means 9, and the water is supplied again by a process leading to the programmed washing, rinsing, and dehydration courses. After the new wash water is supplied through the means (8) and the rinsing course is performed several times, the dehydration tank (6) is transmitted through the power of the power transmission means (5) and rotated at high speed to repeat the dehydration course process. After a certain period of time, the washing machine will go through all the course process to complete the washing.

As shown in FIG. 2, the power transmission device of the washing machine configured as in the related art receives the driving force of the power transmission means 5 and the pulley 10 interlocked through the belt 4 and the pulley 10. A drive shaft 11 fixedly coupled to the drive shaft 11 is rotatably mounted, a drive shaft coupling 12 is forcibly fitted to a lower end of the drive shaft 11, and a lower connector 13 is provided at the upper end of the drive shaft 11. An inner circumference of the upper and lower two bushings 14 are mounted to be rotatable, and the upper connector 15 is mounted on the upper side of the lower connector 13 so as to be rotatable integrally.

In addition, a brake band 38 is mounted on the outer circumference of the upper connector 15 so that the binding force held by the upper connector 15 is released when the brake lever described later is operated.

In addition, the upper side of the upper connector 15 is coupled to the driven shaft coupling 16, which is equipped with a dehydration tank 6 in a serration manner, and the inner and outer periphery of the driven shaft coupling 16 up and down. The driven shaft 18 which coupled the pulsator 7 to the upper end via two bushings 17 is rotatably mounted.

Meanwhile, the sun gear 20 is engaged with the upper end of the drive shaft 11, and the upper carrier 22 having a plurality of planetary gears 21 mounted at the lower end of the driven shaft 18 around the sun gear 20. And the shaft 24 coupled between the lower carrier 23 coupled to the lower portion thereof so as to freely rotate and decelerate.

The planetary gear 21 is engaged with the internal gear 25 formed in the inner circumference of the upper connector 15 to rotate.

And, the lower outer circumference of the lower connector 13 has a ball bearing 27 is inserted into the bottom surface of the lower gear case 26 so that the lower connector 13 is easily rotated, the upper portion of the ball bearing 27 The lower connector 13 is composed of a support member 29 is interposed with a bushing 14 and the clutch bearing 30 so that the lower connector 13 is constantly rotated, the support member 29 is fixed means 31 through the edge It is coupled to the lower end of the lower gear case 26 by.

On the other hand, a clutch spring 33 is mounted at an end circumference between the lower gear case 13 and the drive shaft coupling 12 to control washing and dehydration, and a clutch holder at the entire outer circumference of the clutch spring 33. 34 is mounted.

The upper end of the clutch spring 33 is bitten by the lower connector 13, and the lower end thereof is connected and fixed to the clutch holder 34 inserted into the entire outer circumference of the clutch spring 33.

On the outer circumference of the clutch holder 34 is mounted a slave member 36 having a sawtooth shape with the brake ring 35 interposed therebetween.

In addition, a brake lever 37 is mounted at one side of the lower gear case 26, and a lower portion of the brake lever 37 is operated by the power of the slave member 36 when the brake lever 37 is operated. And a coupling lever 39 is mounted to compress the clutch spring 30 by operating the brake ring 35, and one side of the brake lever 37 receives the power of a drain motor (not shown) to provide the brake band. The clutch lever 40 is attached to operate the 37 and the connecting lever 39.

Reference numeral 32 in the drawings is an upper case.

In the conventional washing machine configured as described above, as shown in FIG. 2, the pulley 10 of the power transmission means 5 is rotated by the power of the power transmission means 5 via the belt 4 during washing. In this case, since the clutch holder 34 is mounted in the power transmission means 5 so that the clutch lever 40 pushes the toothed slave member 36, the brake ring connected to the slave member 36 The clutch holder 34 is moved by the frictional force of 35, and the clutch holder 34 rotates in a direction of releasing the clutch spring 33 connected thereto so that the clutch spring 33 expands. As the inner diameter of the spring 13 and the drive shaft coupling 12 form a gap with the clutch spring 33 and the lower connector 13, the clutch spring 33 and the lower connector 13 do not rotate but the drive shaft 11. Only turns.

That is, when the drive shaft 11 rotates, the sun gear 20 mounted at the tip of the drive shaft 11 is rotated at the same time, and the planetary gear 21 engaged therewith also rotates.

Accordingly, the upper carrier 22 and the lower carrier 23 mounted on the upper and lower sides of the planetary gear 21 are rotated by the shaft 24 coupled to the inner side of the planetary gear 21, and the upper portion is rotated. Since the driven shaft 18 mounted in the center of the carrier 22 is rotated, the pulsator 7 coupled to the tip of the driven shaft 18 is inverted to be supplied to the dehydration tank 6. Washing is performed because water flow is formed in the wash water.

On the other hand, when the clutch lever 40 is operated by a drain motor (not shown) during dehydration, the clutch member 40 and the clutch holder 34 connected to the clutch lever 40 are operated while the clutch holder 40 is operated. The clutch spring 33 connected to the 34 is operated in the winding direction so that there is no gap with the drive shaft coupling 12.

At this time, the clutch spring 33 is caught by the drive shaft coupling 12 to rotate together with the lower connector 13. When the clutch lever 40 is operated, the brake lever 37 is operated and the brake lever is simultaneously operated. The breakband 38 connected to 37 is released.

When the power transmission means 5 rotates right in this dehydration control state, the pulley 10 of the power transmission means 5 which receives the power of the driving means 3 through the belt 4 is rotated and the pulley is rotated. The drive shaft coupling 12 connected to the drive shaft 11 via the drive shaft 11 is rotated, and the drive shaft coupling 12 rotates together with the lower connector 13 connected by the clutch spring 33. The rotational force of the lower connector 13 is transmitted to the upper connector 15 coupled with the lower connector 13 and simultaneously transferred to the driven shaft coupling 16 coupled with the upper connector 15 in a serration manner. By allowing the driven shaft coupling 16 to rotate at a high speed, the dehydration tank 6 fixedly coupled to the upper surface via a plurality of bolts (not shown) can be dehydrated.

However, according to the conventional washing machine configured as described above, as a function of connecting and blocking power during washing and dehydration, the support member 29 is provided by the fixing means 31 at the lower end of the lower gear case 26. Since it consists of a complex structure consisting of the clutch bearing 30, the clutch spring 33, the clutch holder 34, the brake ring 35 and the sleeve member 36, the assembly work and time-consuming work There was a problem of lowering the efficiency and raising the manufacturing cost.

In addition, since the drive means 3 is biased to one side from the lower center of the washing tank (not shown), there is a problem that noise occurs during washing and dehydration.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to reduce the assembly work and time by integrating the power conversion in a simple structure using the respective drive means during washing or dehydration work The present invention relates to a power transmission device of a washing machine that improves efficiency and reduces manufacturing cost and significantly reduces noise during washing and dehydration.

The power transmission device of the washing machine according to the present invention made to achieve the above object, the power generating means disposed in the lower portion of the washing tank to generate power during washing and dehydration, and rotates the pulsator under the power of the power generating means Washing driving means mounted on the lower circumference of the drive shaft and the dehydration driving means mounted on the lower circumference of the lower connector to rotate the dehydration tank in response to the power of the power generating means.

Hereinafter, the date and time of the present invention will be described.

The same code | symbol is attached | subjected to the part same as the prior art 1st and 2nd.

As shown in FIG. 3 and FIG. 4, a power generating means 50 which is operated by separate control means (not shown) is installed in the lower part of the washing tank 2, and the power generating means 50 The lower case 61 is installed in the lower portion so that the power generating means 50 is seated, and the case member 63 is fixed to the bottom of the upper case 60 at the same time as the upper portion of the power generating means 50. The lower portion of the case member 63 is coupled via a support member 65 installed on the outer circumference of the lower case 61.

The dehydration driving means 51 and the washing driving means 53 which are respectively driven by the power of the power generating means 50 at the time of dehydration and washing are installed in the power generating means 50, and the dewatering and washing driving is provided. In the inner center of the means (51, 53) is driven by the power generating means 50, the drive shaft 70 is rotated by the washing driving means 53, the dehydration driving means 51, the washing driving means (53) A lower bearing 57 disposed at the lower center of the lower case 61 through the lower connector 31, an upper bearing 55 disposed at the lower center of the dehydration driving means 51, and the drive shaft; In order to facilitate the rotation of the 70, the upper portion of the lower connector 31 to be described later is provided via the bushing 14 disposed.

At the center of the upper end of the dewatering driving means 51, a lower connector 13 which is rotated by the dewatering driving means 51 is inserted when dewatering, and the lower connector 13 is disposed on the upper part of the lower connector 13. The upper connector 15 is installed to rotate at the same time as the rotation of the.

A driven shaft coupling 18 fitted with a dehydration tank 6 is fitted in the upper inner center of the upper connector 15, and two upper and lower bushings inside the driven shaft coupling 18. A driven shaft 16 on which the pulsator 7 is mounted is provided at the upper end so as to smoothly rotate through the 17.

An internal gear 25 is formed on an inner circumference of the upper connector 15 coupled to the upper end of the lower connector 13, and a planetary gear 21 capable of decelerating is installed inside the internal gear 25. The fixing member 73 is forcibly press-fitted to the inner center of the planetary gear 21 so that the sun gear member 71 mounted on the upper end of the drive shaft 70 is coupled in a serration manner.

In addition, the first magnetic member 56 is disposed at the lower end of the dehydration driving means 51 so that the dehydration driving means 51 descends from the lower connector 13 to be in close contact with the dehydration driving means 51 during dehydration. Is mounted, and the second magnetic member 57 is mounted on the upper end of the washing driving means 57 so as to face the first magnetic member 56.

Next, the operation and effect of one embodiment according to the present invention will be described.

First, during washing by a control means (not shown), the dehydration driving means 51 is detached from the lower connector 13 and lowered, and is attached to the upper end of the washing driving means 53 at the same time.

At this time, the dehydration driving means 51 due to the first magnetic member 56 mounted on the lower end of the dewatering driving means 51 and the second magnetic member 57 mounted on the upper end of the washing driving means 53. And the washing driving means 53 are coupled to each other to increase the output of the power generating means 50 during washing to improve the power of the washing driving means 53.

Therefore, when the washing driving means 53 rotates the drive shaft 70 by the power of the power generating means 50, the lower connector 13 is not rotated and the sun gear member 71 mounted on the top of the drive shaft 70. ) Will rotate.

That is, when the drive shaft 70 rotates, the sun gear member 71 mounted at the tip of the drive shaft 70 is rotated and the planetary gear 21 coupled to the fixing member 73 coupled to the serration method. ) Will also rotate.

Therefore, the upper carrier 22 and the lower carrier 23 mounted on the upper and lower sides of the planetary gear 75 are rotated by a plurality of shafts 24 coupled to the inner side of the planetary gear 21, and the upper portion is rotated. Since the driven shaft 16 mounted in the center of the carrier 22 is rotated, the pulsator 7 coupled to the tip of the driven shaft 16 is inverted to wash the water supplied in the dehydration tank 6. Water flows into the water, so you can wash.

At this time, the distribution of the force is made by the relative movement of the planetary gear 21 and the internal gear 25, the upper connector 15 is rotated in the opposite direction to the pulsator (7).

And, when the washing process is finished by the control device (not shown) when dewatering, the dewatering driving means 51 in close contact with the upper end of the washing driving means 53 is raised to engage with the lower outer circumference of the lower connector 13 Done.

Therefore, since power is transmitted to the lower connector 13 by the rotation of the dehydration driving means 51, the rotational force of the lower connector 13 is transmitted to the upper connector 15 coupled to the lower connector 13. Simultaneously with the zoom, the upper shaft 15 is transferred to a driven shaft coupling 18 mounted in a serration manner, and the driven shaft coupling 18 is fixedly coupled through a plurality of bolts (not shown) at the top. The dehydration tank 6 can be rotated at high speed to perform dehydration.

Since the rotation speed of the dehydration tank 6 is not decelerated by the planetary gear 21, the rotation speed with the drive shaft 70 is the same.

At this time, the shanghai-dong of the dewatering driving means 51 is the first magnetic member 56 mounted on the lower end of the dewatering driving means 51 and the second magnetic member mounted on the upper end of the washing driving means 53. It is controlled by (57).

In the above description, the first magnetic member 56 mounted at the lower end of the dewatering driving means 51 and the second magnetic member 57 at the upper end of the washing driving means 53 facing the first magnetic member 56. Although the dehydration drive means 51 is moved up and down by mounting the washing and dehydration is described with reference to an example of the power transmission device of the washing machine, the present invention is not limited thereto.

For example, as shown in FIG. 4 as another embodiment, the laundry driving means 53 is mounted on the lower periphery of the drive shaft 70, and press-fitted to the lower outer periphery of the lower connector 13 provided thereon. It is a matter of course that the laundry driving means 53 is driven only when the dehydration driving means 51 is separately installed, and the laundry driving means 53 is rotated when washing, and only the dehydration driving means 51 is rotated when dewatering. .

That is, when the drive shaft 70 rotates, the sun gear member 71 mounted on the front end of the drive side 70 is rotated at the same time, and at the same time, the planetary body mounted on the outer circumference of the fixing member 73 is coupled to the serration method. The gear 21 will also rotate.

Therefore, the upper carrier 22 and the lower carrier 23 mounted on the upper and lower sides of the planetary gear 21 are rotated by the plurality of shafts 24 coupled to the inner side of the planetary gear 21, and the upper portion is rotated. Since the driven shaft 18 mounted in the center of the carrier 22 is rotated, the wash water supplied to the dewatering tank 6 by inverting the pulsator 7 coupled to the tip of the driven shaft 18. It is possible to wash because it forms a stream.

In addition, during dehydration, the lower connector 13, which is press-fitted to the inner center of the dehydration driving means 51, is rotated while receiving power from the dehydration driving means 51, and is coupled to the lower connector 13 at the same time. The upper connector 15 is rotated.

That is, the rotational force of the lower connector 13 is transmitted to the upper connector 15 coupled to the lower connector 13 and simultaneously transferred to the driven shaft coupling 16 which is forcibly pressed into the upper connector 15. The driven shaft coupling 16 is capable of performing dehydration by rotating the dehydration tank 6 fixedly coupled to each other through a plurality of bolts (not shown) at the upper end.

As described above, according to the power transmission device of the washing machine according to the present invention, the washing and dehydration drive has a simple structure in which the power is separately provided by the washing driving means and the dewatering driving means, respectively. Power generation means is installed in the lower center of the system to improve the work efficiency by shortening the assembly work and time, and at the same time, it has various effects that can reduce the manufacturing cost and significantly reduce the noise during washing and dehydration. It is.

Claims (1)

Power generating means disposed in the lower part of the washing tank to generate power during washing and dehydration, washing driving means mounted on the lower circumference of the drive shaft to rotate the pulsator under the power of the power generating means, and the power generating means In the washing machine provided with each of the dehydration driving means mounted on the lower circumference of the lower connector to rotate the dehydration tank under power, the dewatering driving means is separated from the lower connector to increase the power of the laundry driving means when washing; The first magnet member mounted on the lower end of the dewatering driving means and the second magnetic member mounted on the upper end of the washing driving means in correspondence with the first magnetic member so as to be lowered and close to the washing driving means. Power transmission device of the washing machine characterized in that.