JPS5836594A - Ball balancer of centrifugal rotary machine - Google Patents
Ball balancer of centrifugal rotary machineInfo
- Publication number
- JPS5836594A JPS5836594A JP56133648A JP13364881A JPS5836594A JP S5836594 A JPS5836594 A JP S5836594A JP 56133648 A JP56133648 A JP 56133648A JP 13364881 A JP13364881 A JP 13364881A JP S5836594 A JPS5836594 A JP S5836594A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- sphere
- rotating
- rotary machine
- 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.)
- Granted
Links
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Centrifugal Separators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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
遠心回転機のポールバランサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pole balancer for a centrifugal rotating machine for regulating vibration during rotation of a rotating tank.
例えば脱水兼凡洗濯機にあっては、脱水運転時において
回転槽が内部の脱水物の偏りによっ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被数個の鋼球を移動自在に収容した
構成のポールバランサが供されている。即ち、斯かるポ
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
)な金属音が発生するという問題点があった。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ってしまうため、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
くなる欠点がめる。t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
摩擦等によって緩衝層が鋼球から8111する事態が起
こり易く、その剥離物によっ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沙、異常音が発生
するという欠点がある。For example, in a dehydrating/washing machine, during dehydration operation, the rotating tub performs a whirling motion 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, in the past, an annular case was provided concentrically with the rotating tank for dehydration, and
A pole balancer is provided in which several steel balls are movably accommodated within this annular case. That is, such a pole balancer utilizes the phenomenon that when the 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 is a problem in that a harsh metallic sound is generated each time the dehydration operation is performed. In order to deal with these problems, it has been considered to use rubber or resin balls instead of steel balls, but such configurations 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 damaged due to collisions between the steel balls and friction between the steel balls and the annular case. It is easy for the steel ball to come off from the steel ball, and since the smooth movement of the steel ball is hindered by the peeled off material, there is a drawback that the vibration regulating effect is halved and 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
が耳ざわりになってしまう虞がなく、しかも斯ような優
れた効果を得るようにした構成であシながら、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レオう虞をなくすこ
とがで巻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-mentioned circumstances, and its purpose is to suppress the collision sound between spheres to a small level, eliminate the possibility that the collision sound becomes harsh to the ears, and yet achieve such excellent effects. A centrifugal rotating machine that winds with a structure that allows the mass of the sphere to be secured as much as necessary and eliminates the risk of damage caused by peeling off from the sphere and preventing the smooth movement of the sphere. To provide ball balancers.
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によシ支持した水受槽で、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
し九攪拌翼である。6は水受槽2下に配設したモータで
、これがべμト伝動機構7を介し洗い及びすすぎ時に上
記攪拌翼5を回転させ脱水時に攪拌翼5と共に回転[4
を回転させるようになっている。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となしたプラスチック族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78を回転槽4の
上端開口部に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@
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
11&とゴム11b(または樹脂でも鼠い)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
成しである。In FIG. 1, 1 is the outer box of the washing machine, 2 is a water tank supported by an elastic suspension mechanism 3 disposed inside the outer box 1, and 4
5 is a rotating tank disposed in the water receiving tank 2, and 5 is a stirring blade disposed in the rotating tank 4. Reference numeral 6 denotes a motor disposed below the water receiving tank 2, which rotates the agitating blade 5 during washing and rinsing via a bead transmission mechanism 7, and rotates together with the agitating blade 5 during dewatering.
It is designed to rotate. 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. 78 is positioned at the upper end opening of the rotating tank 4 so that a predetermined gap exists between it 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. @ of tank 4
The annular case 8 is connected to the upper part of the wall, and thus the annular case 8 is attached and fixed to the upper part of the rotating tank 4. Now, reference numeral 11 denotes a plurality of spheres movably housed in the annular chamber 9, and as shown in FIG. ), and is configured 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
の被脱水物が不拘−分布畔によって偏荷重となっている
状11にて行なわれた場合には、回転槽4が撮れ回り運
動を行なうようにな抄、その振動は回転槽4の共振回転
数付近で最大になる。In the dehydrating and washing machine having the above-described configuration, the dehydrating operation in which the rotating tub 4 is rotated at high speed results in a situation 11 in which the objects to be dehydrated in the rotating tub 4 are unevenly loaded due to the unrestricted distribution of the ridges. If this is done, the rotating tank 4 will perform a rotating motion, and the vibration will be maximum near the resonance rotation speed of the rotating tank 4.
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、以て咳回転槽4の偏荷重に起因し九振動が規制され
るようになる。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, and the vibrations caused by the unbalanced load on the cough rotary tank 4 are thereby regulated. It becomes like this.
以上説明した零発MKよれば1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 zero-fired MK described above, since one sphere is formed by mixing metal powder and rubber or resin, a number of excellent effects as described below can be obtained.
(1)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罵ざわり
になってしまうことがない。(1) Since the spheres have shock absorbing properties, the collision noise between the spheres can be suppressed to a low level, and the collision noise does not turn into an insult.
(if) 球体に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シ、従って回転槽
の振動規制作用が不十分になっ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〉十分に確
保し得て効果的である。(if) 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, especially in this case. If a lead-based metal powder is used as the metal powder as in the embodiment of the present invention, it is effective because the mass of the sphere can be sufficiently secured.
(2)鋼球の周11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っ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。(2) Unlike the conventional structure in which a buffer layer is formed around the circumference 11 of the steel ball, there is no separation from the ball and its smooth movement is prevented, so the vibration regulating effect is reduced. , there is no risk of abnormal noise occurring.
幌 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、従っ
て球体を収容せる環状室に対する水密性を低くシ゛〔も
支障がなくなり、斯ように水密性を低くできる分だゆ構
造成は製造工程を簡略化でき、以てコストの低減を図り
得る。Since the metal powder in the hood 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 less watertight. The watertight structure can simplify the manufacturing process and reduce costs.
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。FIG. 2 is a schematic longitudinal sectional view of the machine, FIG. 2 is a longitudinal sectional view of the main parts of the same embodiment, and FIG. 3 is a partially sectional front view of the sphere.
図中、4は回転槽、9は環状室、11は球体、111L
は酸化鉛の粉末(金属粉)、11bはゴムである。In the figure, 4 is a rotating tank, 9 is an annular chamber, 11 is a sphere, 111L
is lead oxide powder (metal powder), and 11b is rubber.
第1図 第3図 151Figure 1 Figure 3 151
Claims (1)
室と、この環状室内に移動自在に収容された複数個の球
体とを備え丸ものにおいて、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
回転機のポールバランサ。 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ポールバランサ。[Claims] 1. A round article comprising a round annular chamber provided concentrically with the rotating tank and a plurality of spheres movably housed in the annular chamber, wherein the spheres are A pole balancer for a centrifugal rotating machine characterized by being formed by mixing metal powder and rubber or resin. 2. A pole 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 true JPS5836594A (en) | 1983-03-03 |
JPS6326675B2 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) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6188767A (en) * | 1984-10-03 | 1986-05-07 | ベー・ベー・ツエー・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Method and circuit for preventing trouble |
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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6188767A (en) * | 1984-10-03 | 1986-05-07 | ベー・ベー・ツエー・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Method and circuit for preventing trouble |
JPS6281931A (en) * | 1985-10-01 | 1987-04-15 | 日立プラント建設株式会社 | Variable frequency inverter |
Also Published As
Publication number | Publication date |
---|---|
JPS6326675B2 (en) | 1988-05-31 |
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