KR0118820Y1 - Device for reducing vibration - Google Patents

Device for reducing vibration

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Publication number
KR0118820Y1
KR0118820Y1 KR2019940025254U KR19940025254U KR0118820Y1 KR 0118820 Y1 KR0118820 Y1 KR 0118820Y1 KR 2019940025254 U KR2019940025254 U KR 2019940025254U KR 19940025254 U KR19940025254 U KR 19940025254U KR 0118820 Y1 KR0118820 Y1 KR 0118820Y1
Authority
KR
South Korea
Prior art keywords
fluid
rotating body
gear
washing tank
chamber
Prior art date
Application number
KR2019940025254U
Other languages
Korean (ko)
Other versions
KR960011211U (en
Inventor
조민수
Original Assignee
김광호
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김광호, 삼성전자주식회사 filed Critical 김광호
Priority to KR2019940025254U priority Critical patent/KR0118820Y1/en
Publication of KR960011211U publication Critical patent/KR960011211U/en
Application granted granted Critical
Publication of KR0118820Y1 publication Critical patent/KR0118820Y1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206—Mounting of motor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

본 고안은 회전체 진동감쇠장치에 관한 것으로, 그 목적은 회전체의 구동력을 이용하여 진동을 효과적으로 감쇠시키는 것이다.The present invention relates to a rotating vibration damping device, the purpose of which is to effectively damp the vibration by using the driving force of the rotating body.

본 고안은 드럼세탁기의 본체(1)에 수평방향으로 설치된 세탁조(3), 세탁조를 정역회전시키는 구동축(5)이 마련된 구동모터(6), 세탁조의 하방에 설치된 펌프실(7), 펌프실의 양측에 각각 연통 설치되며 내부에 유체가 저장된 제1유체실(8)과, 제2유체실(9), 펌프실에 설치되며 상기 구동축의 회전력을 전달받아 이물림 운동함으로써 유체를 제1유체실과 제2유체실 사이에서 이동시키는 제1기어(12)와, 제2기어(13), 구동축과 세탁조의 풀리를 연결시키는 제1벨트(18), 구동축과 제1기어의 풀리를 연결시키는 제2벨트(19)를 구비하여 구성된다.The present invention provides a washing tank (3) installed in the main body (1) of the drum washing machine in a horizontal direction, a drive motor (6) provided with a drive shaft (5) for reverse rotation of the washing tank, a pump chamber (7) installed below the washing tank, and both sides of the pump chamber. Are installed in the first fluid chamber (8), the second fluid chamber (9), the pump chamber, each of which is in fluid communication with each other, and is installed in the first fluid chamber and the second fluid by receiving a rotational force of the drive shaft. The first gear 12 moving between the fluid chamber, the second gear 13, the first belt 18 for connecting the drive shaft and the pulley of the washing tank, the second belt for connecting the pulley of the drive shaft and the first gear ( 19).

Description

회전체의 진동감소장치.Vibration reducing device of the rotating body.

제1도는 본 고안을 적용한 드럼세탁기의 설치 상태도이다.1 is an installation state diagram of a drum washing machine to which the present invention is applied.

제2도와 제3도는 본 고안 실시예의 작동상태도이다.2 and 3 is an operating state diagram of the present invention embodiment.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

3:세탁조(회전체) 5:구동축3: washing tank (rotating body) 5: drive shaft

7:펌프실 8:제1유체실7: Pump room 8: First fluid room

9:제2유체실 12:제1기어9: 2nd fluid chamber 12: 1st gear

13:제2기어 18:제1벨트13: second gear 18: first belt

19:제2벨트19: The second belt

본 고안은 회전체의 진동감소장치에 관한 것으로, 특히 드럼세탁기의 세탁조와 같이 스프링 등에 의해 수평방향으로 매달려 교대로 정역회전하는 회전체의 진동을 감소시키기에 적합한 회전체의 진동감소장치에 관한 것이다.The present invention relates to a vibration reducing device of the rotating body, and more particularly to a vibration reducing device of the rotating body suitable for reducing the vibration of the rotating body in the forward and reverse rotation hanging in the horizontal direction, such as a washing tank of the drum washing machine. .

일반적으로 드럼세탁기의 세탁조는 원통형상으로 구성되어 스프링과 같은 완충부재에 의해 수평방향으로 본체에 매달려 장착된다. 이러한 세탁조가 세탁 및 헹굼을 수행하기 위해서는 정회전과 역회전을 교대로 빈번하게 수행해야 한다. 이렇게 세탁조가 정회전과 역회전을 교대로 수행함에 따라 회전체(세탁조)의 무게중심이 교대로 좌우로 편심되어 진동을 발생하는 문제점이 있었다. 특히 세탁조 내에 세탁물이 담긴 상태에서 세탁조가 정역회전하므로 세탁물에 원심력을 적용하게 되어 무게중심의 좌우 편심이 훨씬 심하게 된다.In general, the washing tub of the drum washing machine is configured in a cylindrical shape and is suspended from the main body in a horizontal direction by a buffer member such as a spring. In order to perform such washing and rinsing, such a washing tank must frequently perform a forward rotation and a reverse rotation. Thus, as the washing tank alternately performs the forward and reverse rotation, the center of gravity of the rotating body (washing tank) alternately is eccentrically left and right, causing a problem of vibration. In particular, since the washing tank rotates forward and backward while the laundry is contained in the washing tank, centrifugal force is applied to the laundry, and the left and right eccentricity of the center of gravity is much worse.

종래에는 이러한 무게 중심의 좌우변화에 따른 진동을 방지하게 위해 세탁조 하방의 본체 저판에 말굽형의 웨이트를 설치하였다. 이 웨이트는 세탁조의 좌우 진동을 감쇠시키기에 충분한 상당한 무게를 가져야 하므로 제품 전체의 무게가 무거워지는 문제점이 있었다. 또한 설치오차 등에 의해 세탁조의 진동을 효과적으로 감쇠시키지 못하는 문제점이 있었다.Conventionally, horseshoe-shaped weights were installed on the bottom plate of the main body under the washing tank to prevent vibration caused by the left and right change of the center of gravity. This weight had to have a considerable weight sufficient to damp the left and right vibrations of the washing tub, so that the weight of the whole product was heavy. In addition, there was a problem that can not effectively damp the vibration of the washing tank by the installation error.

따라서 본 고안은 이러한 문제점을 해결하기 위한 것으로 본 고안의 목적은 회전체의 회전력을 이용해 회전체의 회전방향과 반대방향으로 유체를 이동시킴으로써 회전체의 진동을 효과적으로 감쇠시킬 수 있는 회전체 진동감쇠장치를 제공하는 데 있다.Therefore, the present invention is to solve this problem, the object of the present invention is to rotate the vibration damping device that can effectively attenuate the vibration of the rotating body by moving the fluid in the direction opposite to the rotational direction of the rotating body using the rotational force of the rotating body To provide.

상기 목적을 달성하기 위한 본 고안에 따른 회전체의 진동감쇠장치는, 수평방향으로 설치되어 정역회전하는 회전체, 상기 회전체를 회전시키는 구동수단, 상기 회전체의 하방에 설치된 펌프실, 상기 펌프실의 양측에 각각 연통 설치되며 내부에 유체가 저장된 제1유체실과 제2유체실, 상기 펌프실에 설치되어 상기 구동수단의 동력을 전달받아 회전함으로써 유체를 상기 제1유체실과 상기 제2유체실 사이에서 이동시키는 유체이동수단, 상기 구동수단의 회전력을 상기 회전체와 유체이동수단으로 전달하는 동력전달수단을 구비하여 구성된다.Vibration damping device of the rotating body according to the present invention for achieving the above object, the rotating body is installed in the horizontal direction and the reverse rotation, the drive means for rotating the rotating body, the pump chamber installed below the rotating body, the pump chamber of It is installed in communication on both sides and is installed in the first fluid chamber and the second fluid chamber, the pump chamber in which the fluid is stored therein and is rotated by receiving the power of the drive means to move the fluid between the first fluid chamber and the second fluid chamber And a power transmission means for transmitting the rotational force of the driving means to the rotating body and the fluid moving means.

또한 본 고안에 따른 회전체(드럼세탁기의 세탁조)의 진동감쇠장치는, 드럼세탁기의 본체에 수평방향으로 설치된 세탁조, 상기 세탁조를 정역회전시키는 구동축이 마련된 구동모터, 상기 세탁조의 하방에 설치된 펌프실, 상기 펌프실의 양측에 각각 연통 설치되며 내부에 유체가 저장된 제1유체실과 제2유체실, 상기 펌프실에 설치되며 상기 구동축의 회전력을 전달받아 이물림 운동함으로써 유체를 상기 제1유체실과 제2유체실 사이에서 이동시키는 제1기어와 제2기어, 상기 구동축과 상기 세탁조의 풀리를 연결시키는 제1벨트, 상기 구동축과 상기 제1기어의 풀리를 연결시키는 제2벨트를 구비하여 구성된다.In addition, the vibration damping device of the rotating body (drum washing machine) according to the present invention, the washing tank installed in the horizontal direction of the drum washing machine, a drive motor provided with a drive shaft for forward and reverse rotation of the washing tank, the pump chamber installed below the washing tank, The first fluid chamber and the second fluid chamber, each of which is installed in communication with both sides of the pump chamber, are installed in the pump chamber, and are installed in the pump chamber, and are driven by a rotational force of the driving shaft to transfer the fluid to the first fluid chamber and the second fluid chamber. The first gear and the second gear to move between, a first belt for connecting the drive shaft and the pulley of the washing tank, and a second belt for connecting the drive shaft and the pulley of the first gear.

이하에서는 첨부도면을 참조하면서 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

제1도는 본 고안이 적용된 드럼세탁기의 설치 상태를 보인 사시도이다. 이에 도시한 바와 같이, 드럼세탁기 본체(1) 내부에 완충스프링(2)에 의해 원통형의 세탁조(3)가 수평방향으로 매달려 설치된다. 세탁조(1) 하방의 본체(1) 바닥에는 세탁조(3)를 지지하기 위한 충격흡수기(4)가 설치되고, 세탁조(3) 하방 중앙에는 구동축(5)이 마련된 구동모타(6)가 설치된다. 또한 본체(1) 바닥에는 세탁조(3)의 진동을 감쇠시키기 위한 펌프실(7)과 제1,2유체실(8)(9)이 설치되는데, 제1유체실(8)과 제2유체실(9)은, 후술하는 바와 같이, 펌프실(7)과 연통되어 그 양측에 각각 설치된다. 본 실시예에서는 구동축(5)이 마련되 구동모터(6)는 구동수단으로서 역할을 한다.1 is a perspective view showing the installation state of the drum washing machine to which the present invention is applied. As shown in the drawing, the cylindrical washing tub 3 is installed in the drum washing machine main body 1 by a buffer spring 2 suspended in the horizontal direction. A shock absorber 4 for supporting the washing tank 3 is installed at the bottom of the main body 1 below the washing tank 1, and a driving motor 6 having a driving shaft 5 is provided at the center of the washing tank 3 below. . In addition, a pump chamber 7 and first and second fluid chambers 8 and 9 for damping vibration of the washing tank 3 are installed at the bottom of the main body 1, and the first fluid chamber 8 and the second fluid chamber are installed. 9, it communicates with the pump chamber 7 so that it may mention later and is installed in the both sides, respectively. In this embodiment, the drive shaft 5 is provided, the drive motor 6 serves as a drive means.

제2도와 제3도를 참조하여 펌프실의 내부구조와 제1,2유체실과의 연결관계를 보다 구체적으로 설명한다. 펌프실(7)의 내부에는 본 실시에에서 유체이동수단으로서 역할을 하는 제1기어(12)와 제2기어(13)가 이물림운동하도록 설치된다. 펌프실(7)의 양측에는 제1연결관(14)과 제2연결관(15)을 개재하여 유체가 저장된 제1유체실(8)과 제2유체실(9)이 설치된다. 제1유체실(8)과 제2유체실(9)에 저장된 유체는 제1기어(12)와 제2기어(13)의 회전에 따라 좌측 또는 우측으로 이동하여 세탁조의 진동을 감쇠시키는 것이다.2 and 3, the connection between the internal structure of the pump chamber and the first and second fluid chambers will be described in more detail. Inside the pump chamber 7, the first gear 12 and the second gear 13, which serve as fluid moving means in this embodiment, are provided to engage in a movement. Both sides of the pump chamber 7 are provided with a first fluid chamber 8 and a second fluid chamber 9 in which the fluid is stored through the first connecting pipe 14 and the second connecting pipe 15. The fluid stored in the first fluid chamber 8 and the second fluid chamber 9 moves to the left or the right according to the rotation of the first gear 12 and the second gear 13 to damp the vibration of the washing tank.

다음에는 구동축(5)의 회전력을 세탁조(3)와 제1,2기어(12)(13)에 전달하기 위한 구성을 설명한다. 구동축(5)을 사이에 두고 상측의 세탁조(3)와 하측의 제1기어(12)에는 세탁조측 풀리(16)와 기어측 풀리(17)가 각각 마련되고, 구동축(5)과 세탁조측 풀리(16) 사이에는 제1벨트(18)가 설치되고, 구동축(5)과 기어측 풀리(17)사이에는 제2벨트(19)가 설치된다. 따라서 구동축(5)의 회전에 의해 세탁조(3)와 제1,2기어(12)(13)가 동시에 회전하는 것이다. 본 실시예에서 세탁조측 풀리(16)와 기어측 풀리(17), 제1벨트(18)와 제2벨트(19)는 동력전달수단으로서 역할을 한다.Next, a configuration for transmitting the rotational force of the drive shaft 5 to the washing tank 3 and the first and second gears 12 and 13 will be described. The washing tank side pulley 16 and the gear side pulley 17 are provided in the upper washing tank 3 and the lower first gear 12 with the driving shaft 5 interposed therebetween, and the driving shaft 5 and the washing tank side pulley are respectively provided. A first belt 18 is provided between the 16, and a second belt 19 is provided between the drive shaft 5 and the gear side pulley 17. Accordingly, the washing tank 3 and the first and second gears 12 and 13 are simultaneously rotated by the rotation of the drive shaft 5. In this embodiment, the washing tub side pulley 16 and the gear side pulley 17, the first belt 18 and the second belt 19 serves as a power transmission means.

이와 같이 구성된 본 고안에 의한 실시예의 작동을 설명한다.The operation of the embodiment according to the present invention configured as described above will be described.

제2도에 도시한 바와 같이, 구동축(5)에 의해 세탁조(3)가 도면상의 반시계방향으로 회전하면, 상호 이물림운동하는 제1기어(12)는 반시계방향으로 회전하고, 제2기어(13)는 시계방향으로 회전하여 유체가 좌측에서 우측으로 이동한다. 이와 같이 세탁조(3)가 반시계방향으로 회전함으로써 세탁조(3)의 무게중심이 좌측으로 이동하는데, 이와 동시에 유체가 좌측에서 우측으로 이동함으로써 편향된 무게중심을 보장하는 것이다.As shown in FIG. 2, when the washing tank 3 rotates counterclockwise on the drawing by the drive shaft 5, the first gears 12, which are mutually disengaged, rotate counterclockwise, and the second The gear 13 rotates clockwise so that fluid moves from left to right. As the washing tank 3 rotates counterclockwise, the center of gravity of the washing tank 3 moves to the left side, and at the same time, the fluid moves from left to right to ensure the deflected center of gravity.

제3도에 도시한 바와 같이, 구동축(5)에 의해 세탁조(3)가 도면상의 시계방향으로 회전하면, 상호 이물림운동하는 제1기어(12)는 시계방향으로 회전하고 제2기어(13)는 반시계방향으로 회전하여 유체가 우측에서 좌측으로 이동한다. 이와 같이 세탁조(3)가 시계방향으로 회전함으로써 세탁조(3)의 무게중심이 우측으로 이동하는데, 이와 동시에 유체가 우측에서 좌측으로 이동함으로써 편향된 무게중심을 보장하는 것이다.As shown in FIG. 3, when the washing tank 3 is rotated clockwise on the drawing by the drive shaft 5, the first gear 12 which mutually disengages is rotated clockwise and the second gear 13 is rotated. ) Rotates counterclockwise to move the fluid from right to left. As the washing tank 3 rotates in the clockwise direction, the center of gravity of the washing tank 3 moves to the right, and at the same time, the fluid moves from right to left to ensure the deflected center of gravity.

즉, 세탁조의 정역회전에 따른 무게중심의 변화에 의한 진동이 유체의 이동에 의해 자동적으로 보정되어 감쇠되는 것이다.That is, the vibration caused by the change of the center of gravity due to the forward and reverse rotation of the washing tank is automatically corrected and attenuated by the movement of the fluid.

본 실시예에서는 회전체로서 드럼세탁기의 세탁조를 사용하였으나, 이에 한정되지 않고 수평방향으로 설치되어 정역회전하는 모든 회전체가 대상이 될 수 있음은 물론이다.In this embodiment, the washing machine of the drum washing machine is used as the rotating body, but not limited to this, any rotating body installed in the horizontal direction and rotating forward and reverse may be the target.

이상에서 상세히 설명한 바와 같이, 본 고안에 의하면, 유체의 펌핑작용을 하는 한 쌍의 기어와 유체실을 형성하고 세탁조(회전체)를 회전시키는 구동축의 회전력을 이용하여 유체를 이동시킴으로써 세탁조(회전체)의 진동을 효과적으로 감쇠시키는 이점이 있다.As described in detail above, according to the present invention, a washing tank (rotator) is formed by moving a fluid by using a rotational force of a drive shaft for forming a pair of gears and a fluid chamber for pumping fluid and rotating the washing tank (rotator). There is an advantage to effectively dampen the vibration.

Claims (4)

수평방향으로 설치되어 정역회전하는 회전체(3), 상기 회전체를 회전시키는 구동수단, 상기 회전체의 하방에 설치된 펌프실(7), 상기 펌프실의 양측에 각각 연통 설치되며 내부에 유체가 저장된 제1유체실(8)과 제2유체실(9), 상기 펌프실에 설치되어 상기 구동수단의 동력을 전달받아 회전함으로써 유체를 상기 제1유체실과 상기 제2유체실 사이에서 이동시키는 유체이동수단, 상기 구동수단의 회전력을 상기 회전체와 유체이동수단으로 전달하는 동력전달수단을 구비하는 회전체의 진동감쇠장치.A rotating body (3) installed in a horizontal direction and rotating in a forward and reverse direction, a driving means for rotating the rotating body, a pump chamber (7) installed below the rotating body, and communicating with both sides of the pump chamber and having a fluid stored therein; A fluid moving means installed in the first fluid chamber 8 and the second fluid chamber 9 and the pump chamber to move the fluid between the first fluid chamber and the second fluid chamber by rotating by receiving power from the driving means; Vibration damping device having a power transmission means for transmitting the rotational force of the drive means to the rotating body and the fluid moving means. 제1항에 있어서, 상기 유체이동수단은, 상기 회전체의동력을 전달받아 회전하는 제1기어와 상기 제1기어(12)와 이물림운동하는 제2기어(13)를 구비하는 것을 특징으로 하는 회전체의 진동감쇠장치.The method of claim 1, wherein the fluid movement means, characterized in that it comprises a first gear that rotates in response to the power of the rotating body and the second gear 13 for moving the first gear 12 and the first gear (12). Vibration damping device of the rotating body. 제1항에 있어서, 동력전달수단은, 상기 구동수단에 마련된 구동축(5)과 상기 회전체의 풀리(16)를 연결시키는 제1벨트(18), 상기 유체이동수단의 풀리(17)를 연결시키는 제2벨트(19)를 구비하여 상기 회전체의 회전방향과 상기 유체의 이동방향이 반대가 되도록 구성된 것을 특징으로 하는 회전체의 진동감쇠장치.According to claim 1, wherein the power transmission means, the first belt 18 for connecting the drive shaft 5 provided in the drive means and the pulley 16 of the rotating body, the connection of the pulley 17 of the fluid transfer means Vibration damping device of the rotating body comprising a second belt (19) to be configured so that the rotational direction of the rotating body and the moving direction of the fluid. 드럼세탁기의 본체(1)에 수평방향으로 설치된 세탁조(3), 상기 세탁조를 정역회전시키는 구동축(5)이 마련된 구동모터(6), 상기 세탁조의 하방에 설치된 펌프실(7), 상기 펌프실의 양측에 각각 연통 설치되며 내부에 유체가 저장된 제1유체실(8)과 제2유체실(9), 상기 펌프실에 설치되며 상기 구동축의 회전력을 전달받아 이물림 운동함으로써 유체를 상기 제1유체실과 제2유체실 사이에서 이동시키는 제1기어(12)와 제2기어(13), 상기 구동축과 상기 세탁조의 풀리를 연결시키는 제1벨트(18), 상기 구동축과 상기 제1기어의 풀리를 연결시키는 제2벨트(19)를 구비하는 회전체의 진동감쇠장치.Washing tank 3 installed in the main body 1 of the drum washing machine in the horizontal direction, drive motor 6 provided with a drive shaft 5 for forward and reverse rotation of the washing tank, pump chamber 7 provided below the washing tank, and both sides of the pump chamber. The first fluid chamber (8) and the second fluid chamber (9), which are installed in communication with each other and are installed in the pump chamber, and are installed in the pump chamber, and the fluid is transferred to the first fluid chamber and the first fluid by receiving a rotational force of the drive shaft. The first gear 12 and the second gear 13 to move between the two fluid chambers, the first belt 18 for connecting the drive shaft and the pulley of the washing tank, and the drive shaft and the pulley of the first gear Vibration damping device of the rotating body provided with a second belt (19).
KR2019940025254U 1994-09-29 1994-09-29 Device for reducing vibration KR0118820Y1 (en)

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