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Invention Application
WO2020235632A1 メカニカルシール 审中-公开

メカニカルシール
Abstract:
密封環の摺動面を変形させることなく、かつリテーナが破損し難いメカニカルシールを提供する。　相対回転する一対の密封環１０，２０と、密封環１０を保持するリテーナ１１とを備え、リテーナ１１は、環状の基部１１ａと、密封環１０の外周に嵌合する環状保持部１１ｃと、基部１１ａと環状保持部１１ｃとを軸方向に連結する環状連結部１１ｂと、を有し、密封環１０の外周とリテーナ１１の内周との間に基部１１ａと環状連結部１１ｂと環状保持部１１ｃにより囲まれる環状空間Ｓが形成されるメカニカルシール１であって、環状空間Ｓにおいて、リテーナ１１には基部１１ａと環状保持部１１ｃとを繋ぐ梁１１０が形成されている。
Abstract(English):

Provided is a mechanical seal in which a sliding surface of a sealing ring is not deformed and a retainer is not easily damaged.　A mechanical seal 1 comprises a pair of sealing rings 10 and 20 that rotate relative to each other and a retainer 11 that holds the sealing ring 10, the retainer 11 including an annular base portion 11a, an annular holding portion 11c that fits around the outer periphery of the sealing ring 10, and an annular connecting portion 11b for axially connecting the base portion 11a and the annular holding portion 11c, and an annular space S surrounded by the base portion 11a, the annular connecting portion 11b, and the annular holding portion 11c being formed between the outer circumference of the sealing ring 10 and the inner circumference of the retainer 11, wherein a beam 110 that connects the base portion 11a and the annular holding portion 11c is formed in the retainer 11 in the annular space S.

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