双管钻机夹持卸扣装置的有限元分析及优化

夹持卸扣装置是双管钻机的重要组成部分,主要用于夹持孔内钻具,配合回转器实现机械拧卸钻杆的功能,其性能的好坏将直接影响整机的性能、钻进效率以及钻孔质量等。为验证设计结构的功能和质量,缩短研发周期,提出应用ABAQUS软件对夹持卸扣装置进行有限元分析和优化。结果表明优化后的结构满足安全系数的要求,为夹持卸扣装置的结构设计和优化提供了借鉴,同时为双管钻机的整体可靠性提供了保障。

Finite Element Analysis and Optimization of Clamping and Unclamping Device on the Double-tube Drilling Rig

Clamping and unclamping device is one of the most important composition parts on double-tube drilling rig. It is mainly used for drill pipe clamping and unclamping combined with the rotary mechanism, the stand or fall of its performance will directly affect the performance of the whole machine, drilling efficiency and quality. ABAQUS software has been used for the finite element analysis and optimization of clamping and unclamping device in order to shorten the development cycle and ensure the function and quality of the design. The results show that the optimized structure could meet the demands of safety factor, and could provide the guarantee to the reliability of the clamping and unclamping device and the integral performances of the double-tube drill.