Journal of Shanghai Jiaotong University ›› 2012, Vol. 46 ›› Issue (06): 949-955.

• Automation Technique, Computer Technology • Previous Articles     Next Articles

A Two Spatial-Crossed Parallelograms Rolling Robot

 HAO  Yan-Ling, LIU  Chang-Huan, XIE  Ji-Long, YAO  Yan-An   

  1. (School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, 
    Beijing 100044, China)
  • Received:2011-08-29 Online:2012-06-28 Published:2012-06-28

Abstract: To make the robot move and turn with only a few degrees of freedom, a new rolling robot with the geometry configuration of two spatialcrossed parallelograms was proposed. The structure of the robot is a spatial mechanism consisting of 14 links and 16 joints. The robot is composed of two platforms and four limbs and has the apparent configuration of two spatialcrossed parallelograms. Based on the moving principle and its degree of freedom, the stability and rolling direction were analyzed. The kinematic simulation was performed. Finally, a prototype was developed to verify the feasibility of the proposed concept. The experiments testify its omnidirectional movement realized by the rolling gait under the control of two actuators.

Key words: spherical robot, rolling, deformation

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