目前国内使用的水文水井钻机多为转盘钻机,转盘是钻机直接用于钻进作业的重要部件。它的机械结构虽然不甚复杂,值在钻进中,转盘驱动主动钻杆使钻具旋转,对地层切削钻进,承受着难以预料的不稳定负荷。为此,从钻进工艺角度对转盘的基本要 At present, most of the hydrological well drilling rigs used in China are rotary drilling rigs, and the rotary table is an important component used directly by a drilling machine for drilling operations. Although its mechanical structure is not very complicated, the value of drilling, turntable drive active drill pipe to drill rotation, stratigraphic cutting drilling, to withstand the unpredictable and unstable load. To this end, from the perspective of drilling technology to the basic requirements of the turntable