KR100274677B1 - Wet removal apparatus of can balancer of drum washing machine - Google Patents

Abstract

PURPOSE: A moisture removing device of a canbalancer is provided to completely remove moisture inside a race through air of high pressure and to easily inject the air by inclining a settling bar. CONSTITUTION: A moisture removing device contains injecting members(55a,55b) to inject air of high pressure through oil injecting ports(45a,45b) before injecting oil into races(43a,43b); discharging members(56a,56b) to discharge moisture by contacting with the air discharging ports(46a,46b); and a settling bar(57) to load and support the races(43a,43b) for easily contacting the injecting ports(55a,55b) with the discharging members(56a,56b). The settling bar(57) supports one ends of the races(43a,43b) having the oil injecting ports(45a,45b) and the air discharging ports(46a,46b) by inclining to easily inject the air. By completely removing moisture inside the races(43a,43b) before injecting the oil, the corrosion is prevented and the oil is injected exactly.

Description

Drum Washer Can Balancer Moisture Removal Device

The present invention relates to a can balancer of a drum washing machine, and more particularly, to a water balance device of a can balancer that completely removes water introduced into a race during a manufacturing process of a can balancer attached to a side of a rotating tank to maintain a balance. It is about.

In general, the washing machine is a washing machine is performed by the drop caused by the rotation of the rotating tub having a drum shape, washing and rinsing, dehydration is performed according to a pre-programmed. Since such a drum washing machine can generate severe vibrations and noises due to eccentricity of laundry during the dehydration stroke, a balancing device in the drum washing machine is essential. 1 is a perspective view schematically showing the overall structure of a conventional drum washing machine.

As shown in the related art, the drum washing machine is provided with a fixing tank (3) for fresh water in a rectangular cylindrical housing (1) forming an exterior, and is suspended by a buffer spring (4). 3) a drum-shaped rotating tub 2 is incorporated. And the shock absorbing member 5 for buffering the lower portion of the fixing tank 3 is provided.

The rotating tub 2 is driven by a drive motor 6 provided at the bottom of the housing 1. For this purpose, a pulley (not shown) is formed at the rear of the rotating tub 2, and the driving motor 6 and the belt (not illustrated) are provided. Is connected via a medium) to receive the rotational force of the drive motor (6). The rotating tub 2 is formed with a plurality of dehydration holes 7 over the entire surface, the lifter 8 bent inwardly is configured to be spaced apart by a predetermined interval. The dewatering hole (7) guides the water to flow between the holding tank (3) and the rotating tank (2) during washing, and the water centrifuged from the fines in the rotating tank (2) to the holding tank (3) during dewatering. Guide them out. The lifter 8 functions to lift and drop the laundry.

On the other hand, in order to prevent vibration generated during washing and dehydration, the counterweight 3 is equipped with counterweights (9a, 9b). This is divided into the front balance weight (9a) attached to the front of the fixing tank (3) and the upper balance weight (9b) attached to the upper side, each having a weight of about 11.4 kg, 12.2kg. The material of the counterweight 9a, 9b is cast iron, and is fastened to the fixing tank 3 using the bolt 9c.

The drum washing machine configured as described above is directly transmitted to the fixing tank 3 and the eccentric amount of the laundry during the washing or dehydrating stroke, and the vibration is applied to the counterweights 9a and 9b attached to the front and upper sides of the fixing tank 3. Offset by That is, even if vibration is transmitted from the rotating tank 2 which rotates unevenly, the vibration of the fixing tank 3 is suppressed by the own weight which the balance weight 9a, 9b has.

However, since the vibration according to the amount of eccentricity is suppressed and attenuated only by the weights of the counterweights 9a and 9b, there is a problem in that the balancing effect is greatly reduced when the weights of the counterweights 9a and 9b are light. In addition, as the weight of the counterweights (9a, 9b) fastened to the fixing tank (3) (9c, 9b) is very large, as described above, the installation work is difficult, the weight of the overall drum washing machine is difficult to handle during the distribution process There is this.

In order to solve this problem, a recent drum washing machine has a can balancer attached to both ends of a rotating tank. The can balancer is filled with oil to guide the rolling motion of the steel ball and the rolling motion of the inside of the race.If the water remains inside the race before the oil filling, it becomes the cause of corrosion of the can balancer and accurate oil filling. There is a problem that is not made.

The present invention is to solve this problem, the main object of the present invention is to a plurality of steel balls and oil filled inside the race to be freely moved in the opposite direction of the eccentric direction of the race and the laundry attached to the drum washing machine rotating tub The can balancer is configured to effectively balance the amount of laundry generated during washing or dehydration, and removes moisture from the drum washing machine can balancer by completely removing moisture inside the race before oil filling using high pressure air. To provide a device.

And a second object of the present invention by inclining the cradle on which the can balancer is seated to inject high-pressure air, the oil inlet and the air outlet is located on the upper side to provide a water cleaning device of the drum washing machine can balancer to facilitate the air injection. It is.

1 is a perspective view schematically showing a conventional drum washing machine.

Figure 2 is a side cross-sectional view showing the overall structure of a drum washing machine to which the present invention is applied.

3 is a schematic view showing a water removing device of the can balancer to which the present invention is applied.

Figure 4 is a side view showing a state in which the can balancer is mounted on the cradle according to the present invention.

* Description of the symbols for the main parts of the drawings *

30. Rotating tank 40. Can balancer 41. Inner plate

42. Outer plate 43a, 43b. Race 44. Steel ball

45a, 45b .. oil inlet 46a, 46b .. air outlet 50 .. moisture removal device

51 .. Air compressor 52. Storage tank 54. Mounting plate

55a, 55b..Injection member 56a, 56b..Exhaust member 57.

57a ..

The present invention for achieving this object is a race concentrically attached to the side of the drum-like rotating tub of a plurality of dehydration holes, a plurality of steel spheres are embedded in the race to enable rolling motion, spaced apart at a predetermined interval In manufacturing the can balancer of the drum washing machine with the oil injected through the formed oil inlet and the air outlet to free the movement of the steel ball,

An injection member for injecting high pressure air through the oil inlet before the tip is in contact with the oil inlet and injecting oil into the race, and the tip is in contact with the air outlet to discharge the moisture discharged with the high pressure air to the outside. The discharge member, the oil injection port and the air discharge port is exposed to the upper side, characterized in that it comprises a cradle for which the race is seated and supported to facilitate the contact of the injection member and the discharge member tip.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a side cross-sectional view showing the overall structure of the drum washing machine applied to the present invention, Figure 3 is a schematic view of the can balancer and the water removal device.

As shown in the drum washing machine to which the present invention is applied, the fixing tank 20 in which the drum-shaped rotating tank 30 is built is suspended in the housing 10 forming an external appearance. A plurality of buffer springs 11 are coupled to the ceiling of the housing 10 for the suspension of the fixing tub 20, and the shock absorbing member 12 is formed under the fixing tub 20.

The cylindrical drum-shaped rotating tub 30 is installed to be rotatable inside the fixing tub 20, where a dehydration hole 31 is drilled over the entire surface, so that water rotates with the fixing tub 20 during washing. The water flows through the tub 30 and dewatered from the rotary tub 30 during the dehydration to be discharged to the fixed tub 20. In addition, the inner circumferential surface is provided with a plurality of lifters 32 protruding inwardly in a "V" shape spaced apart by a predetermined interval, the laundry is pulled up and dropped again when the rotating tub 30 is rotated.

As a means for rotating the rotating tub 30, the rotating shaft 33, the pulley 36, the motor 38 and the like are configured. A rotating shaft 33 is coupled to a central portion of the rear plate of the rotating tub 30, which is rotatably supported by the bearing 35 of the bearing housing 34 coupled with the fixing tub 20, and at the end of the rotating plate 30. 36) is installed. The pulley 36 and the motor 38 are connected to the belt 37 so that the rotational force of the motor 38 is transmitted to the pulley 36 by the belt 37, thereby rotating the rotary shaft 33.

On the other hand, the can balancer 40 for eliminating the imbalance caused by the eccentricity of the laundry during the washing or dehydration process is provided at both end portions of the rotary tub 30 in the circumferential direction. The can balancer 40 has a plurality of steel balls 44 to maintain concentricity with the rotating tub 30 and to form rolling motions within the races 43a and 43b and the races 43a and 43b in which annular spaces are formed. consist of. The races 43a and 43b have two inner plates 41 and an outer plate 42 coupled to each other by welding means, which are provided at the rim, which is an inner race 43a projected inward and an outer race 43b projected outward. ). The inner race 43a and the outer race 43b are filled with a plurality of steel balls 44 and oil, respectively.

Accordingly, when the rotating tub 30 rotates, the steel ball 44 is moved in the opposite direction to the eccentric direction while being in close contact with the ceiling surfaces inside the races 43a and 43b, thereby maintaining perfect balancing of the rotating tub 30. Operational noise is reduced, and its manufacturing process is as follows.

First, a race space is formed on the outer plate 42 constituting the can balancer 40 to form the inner race 43a and the outer race 43b, and the oil inlets 45a, spaced apart from each other by a predetermined interval to inject oil. 45b) and air outlets 46a and 46b are drilled. At this time, the oil inlets 45a and 45b and the air outlets 46a and 46b are provided in the inner race 43a and the outer race 43b, respectively.

An appropriate amount of steel balls 44 are introduced into the race space of the outer plate 42 and the inner plate 41 is covered, and then, these are attached through welding means.

Continuously spray the water on these races (43a, 43b) to cool and then inject oil through the oil inlets (45a, 45b) and the air outlet (46a, 46b), thereby smooth rolling of the steel ball 44 And wear damage by friction is prevented. That is, the oil inlets 45a and 45b are for injecting the actual oil, and the air outlets 46a and 46b are for injecting the air inside the races 43a and 43b to facilitate oil injection. After filling the appropriate amount of oil through the oil inlets 45a and 45b, the can balancer 40 is completed by sealing the oil inlets 45a and 45b and the air outlets 46a and 46b by welding.

On the other hand, since the heat generated in the process of constituting the race 43a, 43b by welding the outer plate 42 and the inner plate 41 after the steel ball 44 is injected, water is sprayed and cooled, such cooling process A small amount of water is introduced into the races 43a and 43b through the oil inlets 45a and 45b and the air outlets 46a and 46b.

Therefore, in order to prevent corrosion and accurate oil injection, it is essential to remove water inside the races 43a and 43b before injecting oil, which is a characteristic element of the present invention during the manufacturing process of the can balancer 40. Made by 50.

The water removing device 50 of the can balancer 40 according to the present invention is configured to discharge moisture inside the races 43a and 43b together with air using high pressure air, which is an air compressor 51 for compressing air. ) And an injection member 55a for injecting air from the storage tank 52 and the storage tank 52 temporarily storing the compressed air discharged therefrom into the races 43a and 43b through the oil inlets 45a and 45b. And 55b), discharge members 56a and 56b, and cradles 57 to which the races 43a and 43b, which are not injected, are seated and supported.

The injection members 55a and 55b and the discharge members 56a and 56b are fixed to the plate-shaped square fixing plate 54, and the separation intervals thereof are the oil inlets 45a and 45b and the air outlets 46a and 46b. It is prepared to correspond to the interval of. Since the oil inlets 45a and 45b and the air outlets 46a and 46b are formed at regular intervals in the inner race 43a and the outer race 43b, respectively, the two injection members 55a and 55b and the discharge member. 56a and 56b are fixed to the fixing plate 54 so as to correspond to these gaps. The injection members 55a and 55b are connected to each other through the storage tank 52 and the air hose 53, and a valve device (not shown) is integrally formed therein, so that an external pressure is applied to the front end of the valve device. (Not shown) is opened to discharge high pressure air.

The cradle 57 supports the oil inlets 45a and 45b and the air outlets 46a and 46b at the lower portions of the races 43a and 43b so as to be exposed to the upper side. For this purpose, the upper surface of the cradle 57 is formed in a shape corresponding to the bottom surfaces of the races 43a and 43b so that the races 43a and 43b are firmly seated without shaking. In addition, since one side of the structure of the support leg 57a for supporting the cradle 57 spaced apart from the installation bottom surface is long, the actual cradle 57 is configured to be inclined to have a predetermined angle θ. The races 43a and 43b are placed on the holder 57. As shown in FIG. 4, one side of the races 43a and 43b having the oil inlets 45a and 45b and the air outlets 46a and 46b are formed. It is positioned on the top inclined top portion of the cradle 57. This configuration can facilitate the injection of air through the oil inlet (45a, 45b) by collecting the steel ball 44 and the moisture contained in the race (43a, 43b) to the lower portion by its own weight, The inclination angle θ of 57 is preferably at least 2 degrees.

Next, a method of removing water before the oil is injected into the can balancer 40 through the water removing device 50 configured as described above and the effects thereof will be described.

First, after the appropriate amount of steel ball 44 is poured into the race (43a, 43b) made by welding the inner plate 41 and the outer plate 42 to cool the heat generated during the welding process. The oil is injected therein to completely remove the water inside the races 43a and 43b using the water removing device 50 before completing the can balancer 40.

That is, the races 43a and 43b are seated on the upper surface of the cradle 57 provided to be inclined to have a predetermined angle θ, and then the fixing plate 54 is pressed to the front end portions of the injection members 55a and 55b and the inner race 43a. When contacted so as to communicate with the oil inlets 45a and 45b of the outer race 43b, the front ends of the discharge members 56a and 56b are also in contact with the air outlets 46a and 46b, respectively. Subsequently, when the operator presses the fixing plate 54 further, the valve device (not shown) of the injection members 55a and 55b is opened to open the inner race 43a and the outer race 43b through the oil inlets 45a and 45b. High pressure air is simultaneously introduced into the inside, and the water in the races 43a and 43b together with the high pressure air is discharged to the outside through the air outlets 46a and 46b and the discharge members 56a and 56b. At this time, the oil inlets 45a and 45b and the air outlets 46a and 46b are inclined upward in the races 43a and 43b, and the steel balls 44 and the water are collected at the lower part by their own weight. Therefore, air is easily injected into the races 43a and 43b and moisture is easily discharged.

Through the water removal device 50, since there is no water inside the races 43a and 43b before oil injection, corrosion of the can balancer 40 is prevented, as well as accurate oil injection.

As described above in detail, the drum washing machine to which the present invention is applied is provided with a plurality of steel bodies and oils filled in the race to be freely moved in the opposite direction to the eccentric direction of the race and laundry attached to the drum-shaped rotating tub. Consisting of a can balancer consisting of a washing machine or an eccentric amount of laundry generated during the dehydration administration to effectively maintain the balance, the inside of the race before oil injection through the water removal device of the drum washing machine can balancer according to the present invention using high pressure air By removing the water completely, there is an advantage to prevent corrosion and to accurately inject the oil.

Claims (2)

Races 43a and 43b concentrically attached to the side end portion of the drum-shaped rotating tub 30 in which a plurality of dehydration holes 31 are drilled, and a plurality of steels embedded in the races 43a and 43b to enable rolling motion. The oil is injected into the sphere 44 and the races 43a and 43b through the oil inlets 45a and 45b and the air outlets 46a and 46b which are formed at predetermined intervals to freely move the steel ball 44. In manufacturing the can balancer 40 of the equipped drum washing machine, Injecting members 55a and 55b, which tip end is in contact with the oil inlets 45a and 45b to inject high pressure air through the oil inlets 45a and 45b before injecting oil into the races 43a and 43b. Discharge members 56a and 56b which tip parts are in contact with the air outlets 46a and 46b to discharge the water discharged together with the high pressure air to the outside, the oil inlets 45a and 45b and the air outlets 46a and 46b are exposed on an upper surface thereof, and a cradle 57 is provided on which the races 43qa and 43b are seated and supported to facilitate contact of the tip portions of the injection members 55a and 55b and the discharge members 56a and 56b. Drum washing machine can balance the water removal device characterized in that. The method of claim 1, wherein the cradle 57, One side of the races 43a and 43b having the oil inlets 45a and 45b and the oil outlets 46a and 46b are supported to be inclined upwardly so that the steel ball 44 is laced by its own weight. The water removal device of the drum washing machine can balancer, characterized in that the inclined to the other side to be inclined to have a predetermined angle (θ) easily.