JPS6326675B2 - - Google Patents
Info
- Publication number
- JPS6326675B2 JPS6326675B2 JP56133648A JP13364881A JPS6326675B2 JP S6326675 B2 JPS6326675 B2 JP S6326675B2 JP 56133648 A JP56133648 A JP 56133648A JP 13364881 A JP13364881 A JP 13364881A JP S6326675 B2 JPS6326675 B2 JP S6326675B2
- Authority
- JP
- Japan
- Prior art keywords
- sphere
- tank
- rotating tank
- rotating
- metal powder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000000843 powder Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000005406 washing Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Centrifugal Separators (AREA)
Description
【発明の詳細な説明】
本発明は回転槽の回転時における振動を規制す
るための遠心回転機のボールバランサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ball balancer for a centrifugal rotating machine for regulating vibration during rotation of a rotating tank.
例えば脱水兼用洗濯機にあつては、脱水運転時
において回転槽が内部の脱水物の偏りによつて振
れ回り運動を行なうものであり、該回転槽が定常
回転速度に達するまでの間に共振現象が発生して
その振動が異常に増大することは良く知られてい
る。このため従来において、脱水用の回転槽にこ
れと同心状に環状ケースを設けると共に、この環
状ケース内に複数個の鋼球を移動自在に収容した
構成のボールバランサが供されている。即ち、斯
かるボールバランサは、回転槽が共振回転数付近
で回転された場合に鋼球が該回転槽の偏荷重を減
少させる位置に移動される現象を利用したもので
あるが、この構成では、脱水運転の開始及び停止
時に鋼球が互に激しく衝突することが避けられな
いため、脱水運転を行なう都度に耳ざわりな金属
音が発生するという問題点があつた。このような
問題点に対処するために、鋼球に代えてゴム製或
は樹脂製の球体を用いることが考えられている
が、斯ような構成では球体の質量が小さくなつて
しまうため、脱水槽の振動を規制するという本来
の目的を十分に達成し得なくなる欠点がある。ま
た、鋼球の周囲にゴム或は樹脂より成る緩衝層を
形成することも考えられているが、この構成では
鋼球同士の衝突及び鋼球と環状ケースとの間の摩
擦等によつて緩衝層が鋼球から剥離する事態が起
こり易く、その剥離物によつて鋼球の円滑な移動
が妨げられるため、振動規制作用が半減したり、
異常音が発生するという欠点がある。 For example, in a washing machine that also spins and spins, during spin-driving operation, the rotating tub spins around due to the unevenness of the dehydrated material inside, and a resonance phenomenon occurs until the rotating tub reaches a steady rotation speed. It is well known that vibrations occur and the vibrations increase abnormally. For this reason, conventionally, a ball balancer has been provided in which an annular case is provided concentrically with a rotating tank for dehydration, and a plurality of steel balls are movably housed within the annular case. That is, such a ball balancer utilizes the phenomenon that when a rotating tank is rotated near the resonant rotation speed, the steel balls are moved to a position that reduces the unbalanced load on the rotating tank. Since it is inevitable that the steel balls violently collide with each other when starting and stopping the dehydration operation, there was a problem in that a harsh metallic sound was generated each time the dehydration operation was performed. In order to deal with these problems, it has been considered to use rubber or resin balls instead of steel balls, but such a configuration would reduce the mass of the balls, so it is difficult to eliminate them. There is a drawback that the original purpose of regulating the vibration of the aquarium cannot be fully achieved. It has also been considered to form a buffer layer made of rubber or resin around the steel balls, but in this configuration, the buffer layer is created by collisions between the steel balls and friction between the steel balls and the annular case. It is easy for the layer to peel off from the steel ball, and the peeled off material prevents the smooth movement of the steel ball, resulting in the vibration regulation effect being halved.
There is a drawback that abnormal noise is generated.
本発明は上記事情に鑑みてなされたものであ
り、その目的は、球体同士の衝突音を小さく抑制
し得てその衝突音が耳ざわりになつてしまう虞が
なく、しかも斯ような優れた効果を得るようにし
た構成でありながら、球体の質量を必要なだけ確
保できると共に球体からの剥離物が生じて球体の
円滑な移動が妨げられてしまう虞をなくすことが
できる遠心回転機のボールバランサを提供するに
ある。 The present invention has been made in view of the above circumstances, and its purpose is to suppress the collision sound between spheres to a small level, eliminate the possibility that the collision sound becomes unpleasant to the ears, and yet achieve such excellent effects. The present invention provides a ball balancer for a centrifugal rotary machine that can secure the necessary mass of the sphere and eliminate the possibility that objects coming off the sphere will interfere with smooth movement of the sphere. It is on offer.
以下本発明を脱水兼用洗濯機に適用した一実施
例について図面を参照しながら説明する。 An embodiment in which the present invention is applied to a dehydrating and washing machine will be described below with reference to the drawings.
第１図において、１は洗濯機外箱であり、２は
外箱１内に配設した弾性吊持機構３により支持し
た水受槽で、４は水受槽２内に配設した回転槽、
５は回転槽４内に配設した撹拌翼である。６は水
受槽２下に配設したモータで、これがベルト伝動
機構７を介し洗い及びすすぎ時に上記撹拌翼５を
回転させ脱水時に撹拌翼５と共に回転槽４を回転
させるようになつている。８は回転槽４の上端部
にこれと同心状をなすように設けられその内部を
環状室９となしたプラスチツク製の環状ケースで
あり、具体的には第２図に示す如く、この環状ケ
ース８を回転槽４の上端開口部をその側壁上部と
の間に所定空隙が存するように位置させると共
に、環状ケース８の外周から一体的且つ間欠的に
突設した複数個の突片１０を回転槽４の側壁上部
に連結し、斯ようにして該環状ケース８を回転槽
４の上部に取付固定せしめている。さて、１１は
環状室９内に移動自在に収容した複数個の球体で
あり、これは第３図に示す如く金属粉たる例えば
鉛系の酸化鉛の粉末１１ａとゴム１１ｂ（または
樹脂でも良い）とを混合することにより形成し、
以て衝撃吸収性を有するように構成してある。 In FIG. 1, 1 is a washing machine outer box, 2 is a water tank supported by an elastic suspension mechanism 3 disposed inside the outer box 1, 4 is a rotating tank disposed inside the water tank 2,
5 is a stirring blade disposed within the rotating tank 4. Reference numeral 6 denotes a motor disposed below the water receiving tank 2, which rotates the stirring blade 5 during washing and rinsing via a belt transmission mechanism 7, and rotates the rotary tank 4 together with the stirring blade 5 during dewatering. Reference numeral 8 denotes a plastic annular case that is provided concentrically with the upper end of the rotating tank 4 and has an annular chamber 9 inside.Specifically, as shown in FIG. 8 is positioned so that a predetermined gap exists between the upper end opening of the rotating tank 4 and the upper side wall thereof, and a plurality of protrusions 10 integrally and intermittently protruded from the outer periphery of the annular case 8 are rotated. It is connected to the upper part of the side wall of the tank 4, and in this way, the annular case 8 is attached and fixed to the upper part of the rotating tank 4. 11 is a plurality of spheres movably housed in the annular chamber 9, and as shown in FIG. formed by mixing with
Therefore, it is constructed to have shock absorbing properties.
以上のような構成の脱水兼用洗濯機において、
今、回転槽４を高速回転させるという脱水運転
が、該回転槽４内の被脱水物が不均一分布等によ
つて偏荷重となつている状態にて行なわれた場合
には、回転槽４が振れ回り運動を行なうようにな
り、その振動は回転槽４の共振回転数付近で最大
になる。このように回転槽４が回転されたときに
は、周知の如く球体１１が回転槽４の偏荷重を減
少させる位置へ移動され、以て該回転槽４の偏荷
重に起因した振動が規制されるようになる。 In the dehydrating and washing machine configured as above,
Now, if the dewatering operation of rotating the rotating tank 4 at high speed is performed in a state where the material to be dehydrated in the rotating tank 4 is unevenly loaded due to non-uniform distribution, etc., the rotating tank 4 begins to perform a whirling motion, and its vibration reaches its maximum near the resonance rotation speed of the rotating tank 4. When the rotary tank 4 is rotated in this way, the sphere 11 is moved to a position where the unbalanced load on the rotary tank 4 is reduced, as is well known, so that vibrations caused by the unbalanced load on the rotary tank 4 are regulated. become.
以上説明した本発明によれば、球体を、金属粉
とゴムまたは樹脂とを混合して形成する構成とし
たから、以下に述べるような数々の優れた効果が
得られる。 According to the present invention described above, since the sphere is formed by mixing metal powder and rubber or resin, a number of excellent effects as described below can be obtained.
(i) 球体が衝撃吸収性を有するようになるから、
球体同士の衝突音を小さく抑制できてその衝突
音が耳ざわりになつてしまうことがない。(i) Since the sphere has shock absorbing properties,
The collision sound between the spheres can be suppressed to a low level, so that the collision sound does not become unpleasant to the ears.
(ii) 球体は金属粉が含まれるから、その質量を必
要なだけ確保することが可能であり、従つて回
転槽の振動規制作用が不十分になつてしまうこ
とがない。特にこの場合、本発明の実施態様の
如く金属粉として鉛系のものを用いるようにす
れば球体の質量をより十分に確保し得て効果的
である。(ii) Since the sphere contains metal powder, it is possible to secure the necessary mass of the sphere, so that the vibration regulating effect of the rotating tank will not become insufficient. Particularly in this case, it is effective to use lead-based metal powder as in the embodiment of the present invention, since it is possible to secure a more sufficient mass of the sphere.
(iii) 鋼球の周囲に緩衝層を形成した従来構成のよ
うに、球体から剥離物が生じてしまつてその円
滑な移動が妨げられてしまうことがないから、
振動規制作用が低下したり、異常音が発生した
りする虞がない。(iii) Unlike the conventional structure in which a buffer layer is formed around the steel ball, there is no possibility of peeling off from the ball and hindering its smooth movement;
There is no risk that the vibration regulating effect will deteriorate or abnormal noise will occur.
(iv) 球体において金属粉はゴムまたは樹脂に覆わ
れた状態になるから、該球体に錆が発生する虞
が少なく、従つて球体を収容せる環状室に対す
る水密性を低くしても支障がなくなり、斯よう
に水密性を低くできる分だけ構造或は製造工程
を簡略化でき、以てコストの低減を図り得る。(iv) Since the metal powder in the sphere is covered with rubber or resin, there is little risk of rust forming on the sphere, and therefore there is no problem even if the annular chamber housing the sphere is made watertight. In this way, the structure or manufacturing process can be simplified to the extent that watertightness can be lowered, thereby reducing costs.
第１図は本発明の一実施例において適用した脱
水兼用洗濯機の概略的縦断面図、第２図は同実施
例における要部の縦断面図、第３図は球体を一部
断面した正面図である。
図中、４は回転槽、９は環状室、１１は球体、
１１ａは酸化鉛の粉末（金属粉）、１１ｂはゴム
である。
Fig. 1 is a schematic vertical cross-sectional view of a washing machine with dehydrating function applied in an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the main parts of the same embodiment, and Fig. 3 is a front view of a partially sectioned sphere. It is a diagram. In the figure, 4 is a rotating tank, 9 is an annular chamber, 11 is a sphere,
11a is lead oxide powder (metal powder), and 11b is rubber.
Claims (1)
た環状室と、この環状室内に移動自在に収容され
た複数個の球体とを備えたものにおいて、前記球
体を、金属粉とゴムまたは樹脂とを混合して形成
したことを特徴とする遠心回転機のボールバラン
サ。 ２ 金属粉は鉛系のものであることを特徴とする
特許請求の範囲第１項記載の遠心回転機のボール
バランサ。[Scope of Claims] 1. An annular chamber provided concentrically with the rotating tank, and a plurality of spheres movably housed in the annular chamber, wherein the spheres are A ball balancer for a centrifugal rotating machine characterized by being formed by mixing metal powder and rubber or resin. 2. The ball balancer for a centrifugal rotating machine according to claim 1, wherein the metal powder is lead-based.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56133648A JPS5836594A (en) | 1981-08-25 | 1981-08-25 | Ball balancer of centrifugal rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56133648A JPS5836594A (en) | 1981-08-25 | 1981-08-25 | Ball balancer of centrifugal rotary machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5836594A JPS5836594A (en) | 1983-03-03 |
| JPS6326675B2 true JPS6326675B2 (en) | 1988-05-31 |
Family
ID=15109706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56133648A Granted JPS5836594A (en) | 1981-08-25 | 1981-08-25 | Ball balancer of centrifugal rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836594A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0179262B1 (en) * | 1984-10-03 | 1990-02-07 | BBC Brown Boveri AG | Protection method and circuit |
| JPS6281931A (en) * | 1985-10-01 | 1987-04-15 | 日立プラント建設株式会社 | Variable frequency inverter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5199871A (en) * | 1975-03-18 | 1976-09-03 | Matsushita Electric Ind Co Ltd | DATSUSUISENTAKUKI |
| JPS5199872A (en) * | 1975-03-19 | 1976-09-03 | Matsushita Electric Ind Co Ltd | DATSUSUISENTAKUKI |
| JPS5289270A (en) * | 1976-01-21 | 1977-07-26 | Hitachi Ltd | Single tank washer dryer |
-
1981
- 1981-08-25 JP JP56133648A patent/JPS5836594A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5199871A (en) * | 1975-03-18 | 1976-09-03 | Matsushita Electric Ind Co Ltd | DATSUSUISENTAKUKI |
| JPS5199872A (en) * | 1975-03-19 | 1976-09-03 | Matsushita Electric Ind Co Ltd | DATSUSUISENTAKUKI |
| JPS5289270A (en) * | 1976-01-21 | 1977-07-26 | Hitachi Ltd | Single tank washer dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5836594A (en) | 1983-03-03 |
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