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卡球式取盐单动双管是一种钻进岩盐矿层专用取心工具，加工制成后经过三个钻孔的试验，并几经改进，解决了某盆地钾盐普查钻探遇到的易溶岩盐矿层取心问题。一、结构的特点卡球式取盐单动双管（如图）由双管接头、悬吊轴、轴承、轴承座、调节轴、内管接头、内管、外管、卡球座、卡球、内管座和底喷式合金钻头等组成。内管座有两种类型，一种是普通管座，用于较完整的岩矿层钻进，另一种是胶爪式管座，用于破碎岩矿层钻进及捞取孔内的碎矿心。它的最大特点是可采取直径有一定变化的岩矿心，适合易溶岩矿层钻进，而且卡
The single-action dual-pipe for taking the salt from the ball of the ball is a kind of special coring tool for drilling salt rock strata. After three holes are drilled, the drilling test has been made. After several improvements, it solves the problem that the soluble salt Salt mine coring problem. First, the structure of the characteristics of the ball to take a single double salt (Figure) from the double pipe joints, suspension shaft, bearings, housings, adjusting shaft, the pipe fittings, inner pipe, outer pipe, Ball, the tube seat and bottom spray alloy drill and other components. There are two types of inner seats, one is the common seat, for more complete rock and mine drilling, and the other is a plastic claw-type tube seat for crushing rock and ore drilling and recovery of the heart of broken ore . Its most prominent feature is the rock core that can take some changes in diameter, suitable for drilling into easily-soluble rock formations, and the card