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本文从力学平衡方程式出发,用多元函数条件极值法求出了钻具卸扣时大钳的合理位置,提出了改变内钳尾绳固定端的设想,分析了卡瓦安放位置与钻具弯曲变形的关系等问题。
Based on the mechanical equilibrium equation, the reasonable position of the tongs during the shackle of a drilling tool is determined by the conditional extremum of multivariate function. The idea of changing the fixed end of the inner tongsaw rope is proposed. The position of the kava and the bending deformation of the drilling tool are analyzed. Relationship and other issues.