最近鞍钢四○一勘探队将卡槽式提引器作了部份改进,解决了长期以来存在的套箍跳动问题,从而避免了跑管事故.改进的方法极其简单,首先将原提引器后壁加工一个长方形透孔,如图1所示;然后,在一个长条弹簧,片上铆固一个卡块(见图2),卡块大小以后壁上的长方形透孔大小为准,但卡块厚度必须大于提引器后壁的厚度;最后,将弹簧桿焊 Recently Anshan Iron and Steel Siyiyu exploration team made some improvements to the card slot lift to solve the problem of hoop beating which has existed for a long time, thus avoiding the accident of running pipe. The improved method is extremely simple, A rectangular through hole is formed in the back wall, as shown in FIG. 1; then, a card spring is riveted on a strip spring (see FIG. 2). The size of the rectangular through hole in the back wall of the card block is the same as that of the card The thickness of the block must be greater than the thickness of the rear wall of the lift; finally, the spring bar is welded