履带自张紧式主臂可变构型机器人机构原理与越障分析

来源期刊:中南大学学报(自然科学版)2013年第6期

论文作者:刘少刚 郭云龙 贾鹤鸣 林珊颖 赵丹

文章页码:2289 - 2297

关键词:救援机器人;主臂可变构型;履带自张紧;越障;椭圆形成原理

Key words:rescue robot; variable main arm configuration; automatic-strained track; obstacle-crossing; ellipse forming principle

摘    要:研究一种主臂可变构型履带自张紧式救援机器人,针对履带张紧问题,应用椭圆形成原理,能够从理论上保证机器人构型变化时履带的形变量为0 mm,从而可以获得更好的履带张紧效果;通过引入摆臂三角轮机构丰富了构型变化,提高机器人的越障性能。对机器人攀爬台阶、斜坡及爬越沟道的运动机理进行分析,建立运动学模型。研究结果表明:机器人的实际越障性能与理论计算结果相符,具备良好的越障能力。

Abstract: A robot with variable main arm configuration and automatic-strained track was studied. Aiming at the problem of track straining, a better effect of track straining was obtained using the ellipse forming principle and ensuring the shape variable of track was 0 mm. Through introducing the swinging-wheel, the variation of configuration was enriched and the obstacle-crossing capability of robot was improved. The movement mechanism of robot platform carrying out tasks of navigating stairs, climbing slopes and crossing trenches was analyzed. A kinematic model was built, and the maximum obstacle-crossing capability in corresponding environment was generated. The results show that the experimental result of robot obstacle-crossing capability is consistent with that of theoretical calculation, and the robot has good obstacle-crossing capability.

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