1.增设原因步履式挖掘机与其他挖掘机相比,能够在更大坡度的山地、草原、林地行驶和作业。在使用该种挖掘初时,我们发现2个问题,一是在大坡度环境下作业时,若仅靠步履挖掘机的4个轮胎外加前、后爪支承地面,附着力不足,不能确保履式挖掘机安全作业。二是在狭小而复杂空间行驶时,用前、后爪腾挪较为困难。为了解决上述问题,我公司研制了步履式挖掘机救援牵引机构。在大坡度环境下作业时,在牵引 1. Additional reasons: Compared with other excavators, walking excavators can drive and work on the steep hills, grasslands and woodlands. At the beginning of using this type of excavation, we found two problems. One is that when working on a steep slope, if the four tires of the walking excavator plus the front and rear claws support the ground and the adhesion is insufficient, Machine safe operation. Second, when driving in a small and complex space, it is more difficult to move the front and back claws forward and backward. In order to solve the above problems, our company developed a walking excavator rescue traction agencies. When working in a high gradient environment, the traction