Design and Optimization Analysis of Downhole Robot Support Mechanism Based on Finite Element Method

• DOI: 10.54097/ajst.v8i2.15053
• Publication Date: 2024-01-19T02:38:12Z
• Authors: Wei Wu; Xiaolin Ren; Yijun Liu; Pengpeng Zhang; Yu Li
• Keywords: Slippage

To increase the traction force of telescopic downhole robot, support mechanism robot was optimized, and a slider-spring transmission introduced to solve problem jamming. A mathematical model established, covering relationship between contact normal pressure hydraulic cylinder load. The finite element simulation friction block established based on Ansys software. Stress analysis casing under different pressures carried out, frictional characteristics were obtained. results show that composed four linkages locking blocks proposed in this paper can adapt well diameters. slider spring, as mechanism, has elasticity buffering effect, which makes have certain flexibility, alleviating vibration impact during obstacle crossing reducing logging instruments. It enables passively adjust crossing, effectively improving capability robot. Through simulation, it found depth plow groove produced by is basically proportional pressure. greater pressure, deeper groove, coefficient increases continuously with but change gradually decreases increases.