为使机器人行走机构既能被动地适应崎岖的非结构地彤,又能克服台阶、沟道等规则障碍,将履带行走机构引入摇杆式移动系统中.通过增加摆臂履带和固定关节角,推衍了多种型式的摇杆式履带悬架构型,分析了各悬架构型的特点.结合煤矿井下非结构的地形环境与爆炸性气体环境,提出了一种采用对称的W形履带悬架的摇杆式履带机器人移动系统,并制作了样机.分析了该移动系统的抗倾覆、攀爬台阶、下台阶、跨越沟道等越障特性并进行了性能试验.性能分析与样机试验表明,摇杆式履带机器人移动平台可适应复杂的非结构地形,具有良好的越障性能,可攀爬100mm高的台阶,下450mm高的台阶,跨越260mm宽的沟道.
To obtain robot's locomotion mechanisms which have good passive adaptability to rugged unstructured terrain and strong obstacle-surmounting capabilities to regular obstacles such as steps and ditches, the track is introduced into the rocker-type robot mobile system. Various configurations of the rocker-type track suspensions are obtained through adding ann-tracks and fixing joint angles, and their characteristics are analyzed. According to the unstructured terrain environments and the explosive gas atmosphere environment of underground coal mine, a rocker-type tracked mobile system using a symmetrical W-shaped track suspension is presented, and the mobile platform prototype is developed. Obstacles-surmounting capabilities of this mobile system, such as anti-overturning, channel-crossing, stair-climbing, down-stair, are analyzed. The capability analysis and test results indicate that the platform is of good adaptability to complex unstructured terrains and of strong obstacles-surmounting capabilities, and it can climb up a 100 mm-high step, climb down a 450 mm-high step, and cross a 260 mm-wide ditch.