The front and rear positions of the guide wheel are determined by the position of the drive wheel and are usually arranged at the front. The guide wheel is used to guide the track to rotate correctly, which can prevent deviation and deviation. The height of the center of the guide wheel from the ground should be conducive to reducing. In general, rubber tracks are used for this type of triangular track because they are high-speed running tracks, lightweight, do not damage the road surface, and are easy to install and unload. And metal tracks are mostly used in heavy machinery, such as large tractors, combine harvesters, etc. Due to their unimaginable weight, loading and unloading are particularly laborious, and they cause serious damage to the road surface! The characteristics of triangular tracks are all terrain off-road and walking! As long as the vehicle tires are equipped with it, whether it is muddy, snowy, swampy, rocky, bumpy hilly ground, etc., the car will be like walking on flat ground in various environments! The structure of the triangular track combined with the induction wheel, tensioning device, support wheel, drive wheel and other components was analyzed for its stress situation, and a dynamic model of a type of induction wheel tensioning device was established