Study on adaptive posture adjustment mode of large mining height shearer with double rows and four drives

In order to improve large mining height shearer adaptability to the complex geological conditions, author proposed a shearer hydraulic floating support ad aptive attitude adjustment traction mechanism, to achieve large mining height Shearer double row four-drive traction, based on least square method, completed the doubl e rows of four driven traction machine mechanical model of analytical solutions for operators, and explores the attitude adjustment mechanism of the stiffness characteristics of traction, the use of simulation software ADAMS respectively tradition and attitude adjustment mechanism engaging traction characteristics simulation research, the results showed that compared with the traditional method of driving shearer double-sided mechanical properties, double rows four drive traction force uniform significa ntly improved, dual-oriented shoe lateral force reduction from 42% to 92% load rigidity posture traction mechanism was greater than200 k N/mm, while derived from the increased engagement force with the center was uneven decline. Therefore, the proposed floating support adaptive hydraulic attitude adjustment mechanism could effec tively improve traction machine velocity and acceleration of fluctuation for the double row of four driven traction shearer developed to provide a new idea.