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发明公开
CN110822096A 适用于冷冻工法的盾构机滚刀的密封结构和滚刀 审中-实审

适用于冷冻工法的盾构机滚刀的密封结构和滚刀
摘要：
本发明公开了一种适用于冷冻工法的盾构机滚刀的密封结构和滚刀，用于密封端盖的第一安装槽和刀毂的第二安装槽，该密封结构包括第一弹性金属密封圈和第二弹性金属密封圈，第一弹性金属密封圈包括第一贴合面和第一密封面；第二弹性金属密封圈包括第二贴合面和第二密封面；密封结构具有使用状态，当处于使用状态时，第一贴合面贴设于第一安装槽内，第二贴合面贴设于第二安装槽内，第一密封面和第二密封面相互贴合，且第一弹性金属密封圈可绕自身轴线在第二密封面上旋转。本发明的密封结构在冷冻工况仍能起到有效的密封效果，保证滚刀的正常运转。
摘要（英）：

The invention discloses a sealing structure used for a shield tunneling machine hob and suitable for a freezing working method and a hob. The sealing structure is used for sealing a first mounting groove of an end cover and a second mounting groove of a knife hub. The sealing structure comprises a first elastic metal sealing ring and a second elastic metal sealing ring. The first elastic metal sealing ring comprises a first binding face and a first sealing face. The second elastic metal sealing ring comprises a second binding face and a second sealing face. The sealing structure has a use state, when the sealing structure is in the use state, the first binding face is attached into the first mounting groove, the second binding face is attached into the second mounting groove, the first sealing face and the second sealing face are mutually attached, and the first elastic metal sealing ring can rotate on the second sealing face around the axis of the first elastic metal sealing ring. Thesealing structure can still achieve an effective sealing effect under the freezing working condition, and normal operation of the hob is guaranteed.

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