YUAN Ming wei1, YANG Hui2, PAN Zhong3

 

(1. Worldskills competition China research center, Tianjin University of Technology and Education, Tianjin 300222,

 

China; 2. College of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China;

 

3. College of mathematics and Physics, Tianjin University of Technology and Education, Tianjin 300222, China)

 

 

Abstract: Aiming at the requirements of carbon free climbing car running track accurately travel long distance and other key elements, gravitational potential energy into mechanical energy , periodic to achieve accurate obstacle avoidance and other aspects were researched, and a 3D simulation model were established through UG software, the mechanism motion, and trajectory planning were validated. A series of tests using precision gear mechanism and the rod end joint of the crank rocker mechanism were adopted. The key parts of carbonless car was programming and manufactured by CAM/CNC and the carbonless car was assembled and debuged. The experimental results indicate that the precision of steering mechanism and a transmission mechanism is high, small friction loss, longer of distance of travel and Stable and reliable operation, high adaptability to the ground, detouring accurately, to achieve the ideal competition effect.

 

Key words: spatial crank rocker mechanism; double wheel mechanism; differential mechanism; the miniature rod end ball bearing