KR970006354B1 - Driving gear of a low-frequency vibration washing machine - Google Patents

Abstract

In case of laundry work of a low frequency oscillating washing system, the cam(4) that is installed in a lower center part of the drum(1), in which a curve(3) is composed, rotates by driving force of a motor(2). At the same time, as an unidirectional bearing(8) of the rotating member which is equipped at the end of a shaft(7) at the lower center of a supporting member(6) that is installed at the lower part of an inner tub(5) inside the outer drum(1), rotates along the curve of the cam(3), the shaft(7) and the upper end of the upper center of the supporting member(6) are connected with an oscillator(9), an oscillator shaft(10) is connected with the upper part of the shaft and a spline(11) that the oscillator shaft (10) which is inter-locked with the movement of the shaft, makes an up and down movement and at the same time, the oscillator(9) connected to the upper part of the oscillator shaft makes an up and down movement that it helps the washing is performed.

Description

Driving device of low frequency vibration washing machine

1 is a longitudinal sectional view showing a conventional low frequency vibration washing machine.

2 is a longitudinal sectional view showing the present invention.

3 is a perspective view of a portion A of FIG.

4 is a front view showing another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: outer tank 2: motor

3: cam curve 4: cam

5: inner tank 6: supporting member

7: shaft 8: one-way bearing

9: vibration difference 10: vibration magnetic shaft

11: spline 12: spring

13: plate

The present invention relates to a driving apparatus for a low frequency vibration washing apparatus, and more particularly, to enable the low frequency vibration washing apparatus to be driven efficiently during washing and dehydration.

In general, a washing machine has a pulsator installed in the washing tank, and as the forward and reverse rotational power of the motor is transmitted to the pulsator through the reduction mechanism of the clutch, the water flow and the rotating water flow is formed in the washing liquid in the washing tank. The process is done.

In addition, the washing machine employing the washing method according to the strength of the water flow or the shape of the fluid combines the shear force of the fluid and the mechanical action of the washing wool and friction and the chemical action of the detergent to remove the contaminants attached to the laundry. You can wash your clothes.

However, such a washing machine causes swelling or entanglement of the laundry in the washing tank due to the stirring operation of the pulsator's forward and reverse rotation, resulting in severe foam damage, poor detergent solubility due to water flow, and high consumption of detergent. Even after the detergent residues are buried in the laundry, there is a lot of problems, such as harmful to the skin health, consumption of washing water and washing time is long.

Therefore, in recent years, as shown in FIG. 1, a resonant phenomenon occurs in a polyphase medium composed of water, a detergent, and an air layer in a tank, and thus cavitation phenomena or nonlinear vibration such as micro air bubbles in the polyphase medium generated at this time. The low frequency vibration washing machine that can perform the washing and washing function by the mechanical energy by oscillation and the chemical action by detergent appeared.

FIG. 1 is a longitudinal sectional view showing a conventional low frequency vibration washing machine, in which a drive shaft 11a of a linear motor 2a penetrates a lower portion of a water tank 5a containing water, a detergent and an air layer. A low frequency oscillator 9a is provided at the top of the drive shaft 11a in the water tank 5a to cause resonance in the multiphase medium accommodated in the water tank 5a. The linear motor 2a is provided with a displacement amplitude signal and a frequency signal. The signal oscillation unit 14 to be sent and the signal amplification unit 15 for amplifying and varying the signal are connected, and the sealing plate 16 is provided at the opening of the water tank 5a.

Therefore, when the linear motor 2a is driven in accordance with the signal of the signal oscillation unit 14 and the signal amplifier 15 connected to the linear motor 2a, the low frequency oscillation for the upper end of the drive shaft 11a in the water tank 5a The oscillator 9a oscillates and causes resonance in the multiphase medium composed of water, detergent and air layer in the water tank 5a, and thus mechanical energy and detergents caused by cavitation or nonlinear vibration of micro air bubbles generated at this time. The chemical action is combined to perform the washing and washing process.

At this time, the signal amplifier 15 and the signal oscillator 14 are so that the oscillation frequency band of the low frequency oscillator 9a is within the range of 2-25mm in amplitude and 2-10 ° in each rotation direction at 20Hz-250Hz. Thereby amplifying the current or voltage applied to the vibrator 9a.

However, such a conventional low frequency vibration washing machine can perform the washing function by the reciprocating lifting movement when the linear motor 2a is used, but it is difficult to perform the efficient dewatering function. There was a problem such as lowering the reliability.

The present invention is to solve the above-mentioned problems, the present invention is to provide a user with convenience and satisfaction by allowing the low frequency vibration washing machine as a rotary motor to drive efficiently when washing and dehydration, as well as the device It is an object of the present invention to provide a driving device of a low frequency vibration washing machine that can improve the reliability of the.

In order to achieve the above object, the present invention is installed in the outer tub is rotated by the drive of the motor during washing and dehydration and cam cam is formed, the support member for supporting the inner tub installed in the outer tub and integrally rotates when dehydration and And a one-way bearing mounted on the shaft installed on the support member and rotating only in one direction along a cam curve, a spline installed on the support member between the vibrator shaft and the shaft, and connected to a vibrator installed on the inner tank to move the shaft. Accordingly, the driving device of the low-frequency vibration washing device composed of a vibrating magnetic shaft interlocked during washing and dehydration.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3 of the accompanying drawings.

FIG. 2 is a longitudinal sectional view showing the present invention, and FIG. 3 is a perspective view showing part A of FIG. 2, which rotates by driving the motor 2 when washing and dehydrating the lower center of the outer tub 1 of the low frequency vibration washing machine. A cam 4 having a cam curve 3 formed thereon is installed, and a support member 6 that supports the inner beam 5 and rotates integrally when dewatering is installed at a lower portion of the inner tub 5 installed in the outer tub 1. A shaft 7 is installed at the center lower portion of the support member 6, and a one-way bearing 8, which is a rotating member that rotates in one direction only along the cam curve 3, is mounted at the end of the shaft 7.

In addition, the upper end of the support member 6, the upper end is connected to the vibrator 9, the vibrator shaft 10 which is linked to the movement of the shaft 7 is installed, the lower end and the shaft 7 of the vibrator shaft 10 The spline 11 is installed on the support member 6 between the upper ends.

As shown in FIG. 2 and FIG. 3, the present invention configured as described above is installed at the center of the lower portion of the outer tub 1 by the driving of the motor 2 during washing of the low frequency vibration washing machine so that the cam curve 3 is formed. At the same time as the cam 4 is rotated, the one-way bearing 8 which is a rotating member mounted at the end of the shaft 7 at the center lower portion of the support member 6 installed below the inner tank 5 in the outer circumference 1 is As the shaft 7 rotates along the cam curve 3, the upper end of the shaft 7 and the upper portion of the support member 6 are connected to the vibrator 9, and the upper end of the shaft 7 and the spline 11 are installed to connect the shaft 7. The oscillator shaft 10 interlocked with the movement of the linear motion is linearly reciprocated, and at the same time, the oscillator 9 connected to the upper end of the oscillator shaft 10 moves up and down within the inner tub 5 to perform the washing stroke. Will be performed.

In addition, when the low frequency vibration washing machine is dewatered, the cam 4 is rotated by the driving of the motor 2, and the one-way bearing 8 mounted on the shaft 7 moves to the lower end of the cam curve 3. When the cam 4 rotates in the reverse direction when the cam 4 is lowered, the spline 11 rotates together with the support member 6 due to the friction between the cam curve 3 and the one-way bearing 8 and the cam 4 ), Shaft (7), support member (6), vibrator shaft (10), vibrator (9) and inner tub (5) are integrally rotated to perform centrifugal dehydration.

On the other hand, as shown in Figure 4 as an embodiment of the present invention, the upper portion of the cam curve 3 of the cam 4, that is, the portion that is rubbed when dewatering the cam curve 3 and the one-way bearing (8) By installing and using the plate 13 supported by the spring 12 can be supported by a greater frictional force to prevent the one-way bearing 8 from rotating when the plate 13 is dewatered.

As described above, the present invention can be efficiently driven when washing and dehydration as a rotary motor (2) installed in the low frequency vibration washing machine, it can provide convenience and satisfaction to the user because of the efficiency and reliability of the device It is a very useful invention with greatly improved.

Claims (2)

It is installed in the outer tank (1) and rotates by the driving of the motor (2) during washing and dehydration, the cam 4 to form a cam curve (3), and the inner tank (5) installed in the outer tank (1) while supporting the dehydration The support member 6 which is integrally rotated at the same time, the one-way bearing 8 mounted to the shaft 7 provided on the support member 6 and rotating only in one direction along the cam curve 3, and the vibrating shaft ( 10 is connected to the spline 11 installed on the support member 6 between the shaft 7 and the vibrator 9 installed on the inner tub 5 to wash and dehydrate in accordance with the movement of the shaft 7. Driving device of a low frequency vibration washing machine, characterized in that consisting of a vibrator shaft (10). The friction portion of the cam curve 3 and the one-way bearing 8 at the upper end of the cam curve 3 is supported by a spring 12 for suppressing rotation of the one-way bearing 8 when dewatering. A drive device for a low frequency vibration washing machine provided with a plate (13).