The device comprises a bottom support cover (16), a top support cover (14), at least one bearing (18) arranged between the covers defining an annular passage (38) therebetween, and at least one annular seal (32). The seal (32) includes: a fixing portion (40) fixed by mechanical connection to a first cover among the bottom support cover (16) and the top support cover (16); and at least one sealing lip (42) extending towards a second cover of the bottom support cover (16) and the top support cover (16) such that a free end of the lip (42) supports a sealing surface (54) of the second cover via a sliding contact portion. The second cover is provided with an annular protective rim (60) protruding from the sealing surface (54), which protective rim (60) is offset towards the annular channel (38) in a manner facing the contact portion of the free end of the sealing lip (42) with the sealing surface (54).
装置包括底部支撑盖(16)、顶部撑持盖(14)、布置在盖之间的至少一个轴承(18)以及至少一个环形密封件(32),在盖之间限定环形通道(38)。密封件(32)包括:固定部(40),通过机械连接固定到底部支撑盖(16)和顶部撑持盖(16)之中的第一盖;以及至少一个密封唇(42),朝向底部支撑盖(16)和顶部撑持盖(16)之中的第二盖延伸,使得唇(42)的自由端经由滑动接触部分支承所述第二盖的密封表面(54)。所述第二盖设置有从密封表面(54)突出的环形保护边沿(60),该保护边缘(60)以面对密封唇(42)的自由端与密封表面(54)的接触部分的方式朝向环形通道(38)偏移。
Impact stop with seal
具有密封件的冲击止动装置
2023-02-03
Patent
Electronic Resource
Chinese
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