MULTI-PASSAGE ROTARY JOINT
To improve washability of a rotary joint including multiple passages.SOLUTION: In a rotary joint 20 in which a center rotation part 40A is rotatably coupled to a joint fixing part (a housing) 42, a first liquid passage 38 which allows a liquid to circulate therein is provided within the center rotat...
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Zusammenfassung: | To improve washability of a rotary joint including multiple passages.SOLUTION: In a rotary joint 20 in which a center rotation part 40A is rotatably coupled to a joint fixing part (a housing) 42, a first liquid passage 38 which allows a liquid to circulate therein is provided within the center rotation part 40A. An annular second liquid passage 44 is provided between an inner peripheral surface of a lower fixing part 42B of the joint fixing part 42 and an outer peripheral surface of the center rotation part 40A so as to enclose the first liquid passage 38. At least two liquid supply ports which introduce the liquid are provided at the second liquid passage 44, and the liquid supply ports are formed offset from an axis R of the center rotation part 40A.SELECTED DRAWING: Figure 3
【課題】複数の流路を備えるロータリージョイントの洗浄性を向上させる。【解決手段】ジョイント固定部(ハウジング)42に中央回転部40Aを回転自在に連結するロータリージョイント20において、中央回転部40Aの内部に、液体を流通させる第1液通路38を設ける。ジョイント固定部42の下部固定部42Bの内周面と中央回転部20Aの外周面との間に第1液通路38を囲繞するように円環状の第2液通路44を設ける。第2液通路44には、液体を導入する少なくとも2つの給液口が設けられ、給液口が中央回転部40Aの軸心Rからオフセットされて形成される。【選択図】図3 |
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