Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (6): 825-830.DOI: 10.12068/j.issn.1005-3026.2019.06.012

• Mechanical Engineering • Previous Articles     Next Articles

Research on the Structure Design and Steering and Obstacle-crossing of a Novel Four-Arm Inspection Robot

FANG Li-jin1, ZHU Shuai2, HE Chang-lin2, XU Ji-qian2   

  1. 1. School of Robot Science & Engineering, Northeastern University, Shenyang 110819, China; 2. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2018-05-09 Revised:2018-05-09 Online:2019-06-15 Published:2019-06-14
  • Contact: FANG Li-jin
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Abstract: Based on the working task requirements of an inspection robot and the characteristics of obstacles on high voltage transmission lines, a novel four-arm inspection robot was proposed. The robot was composed of three serial poles which were connected by a three-shaft composite rotary joint and a two-shaft composite rotary joint. The robot can meet the requirements of gravity balance by adjusting its joint angle when it steers and crosses obstacles. The gravity balance condition and the postures of steering and obstacle-crossing were analyzed, and the Adams simulation software was used to simulate the whole process of steering and obstacle-crossing. Finally, an experiment of the robot was carried out. The simulations and experiments showed that the inspection robot is able to steer and cross obstacles, and it can keep gravity balance.

Key words: inspection robot, steering and obstacle-crossing, gravity balance, simulation, experiment

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