Inversion approach to traction calculation of tracked chassis of hoisting, construction and road machines

Tracked chassis are a common variant of the implementation of the movement mechanisms of hoisting-and-transport, construction, road machines, which has a number of advantages compared to rail-wheel, pneumatic-wheel and walking mechanisms, in particular, the absence of the need to equip work sites, as well as improved driving performance when moving over rough terrain. This article proposes an inversion approach to the traction calculation of a tracked chassis, which consists in presenting its traction and bearing element in the form of a closed loop, which makes it possible to apply the basic provisions of the theory of traction calculation of continuous transport machines to determine the resistance to movement and, accordingly, tensions in the contour of the track. The proposed approach makes it possible to estimate the contribution of various motion resistances to the total tractive effort during rectilinear motion, depending on the design features of each characteristic section of the track, taking into account the redistribution of the load between different tracks of the same chassis. The results obtained can be applied both in the design of classic special machines on a tracked chassis, and in the development of prototypes of tracked vehicles with displaced load application centers, in particular, tracked chassis of mobile transport and handling rope complexes.