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在天井钻进过程中,卡盘的轴向浮动对保护钻杆螺纹和防止钻杆脱扣、刀头坠落等方面具有重要作用。本文着重介绍了天井钻机卡盘轴向浮动量的计算方法,并附有实例。
In the course of drilling the shaft, the axial floating of the chuck plays an important role in protecting the thread of the drill pipe and preventing the tripping of the drill pipe and the fall of the cutter head. This paper focuses on the calculation method of the axial floating amount of the chuck in the boring machine, with examples attached.