论文部分内容阅读
介绍一种新的竖井罐道钢绳张紧装置,即安装在井塔上的棘轮杠杆机构,它比过去沿用的井底重锤式张紧装置优越。
A new hoistway cable tensioning device, a ratchet lever mechanism mounted on a well tower, is introduced, which is superior to the down hole hammer tensioners used in the past.