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公开(公告)号:US4549469A
公开(公告)日:1985-10-29
申请号:US548405
申请日:1983-11-03
CPC分类号: F15B15/2861
摘要: A hydraulic ram for use as an advance ram in mining operations has a plurality of permanent magnets embedded in its piston rod. At least one sensor is associated with a guide bush fixed to the piston rod end of the cylinder of the ram. The or each sensor is accommodated within a respective pocket formed in the guide bush. The pocket(s) can be closed off by a detachable closure member.
摘要翻译: 用作采矿操作中的推进柱塞的液压柱塞具有嵌入其活塞杆中的多个永磁体。 至少一个传感器与固定到柱塞的气缸的活塞杆端的导套相关联。 所述传感器或每个传感器容纳在形成在导向衬套中的相应凹部内。 口袋可以由可拆卸的封闭构件封闭。