Guide belt wheel structure and engineering vehicle track device

The utility model discloses a guide belt wheel structure and an engineering vehicle crawler belt device, the structure comprises a guide wheel, a tensioning wheel, a thrust wheel, a support device and a crawler belt, when the guide belt wheel structure is used, the guide wheel, the tensioning wheel and the thrust wheel which are arranged on a support are sleeved on the crawler belt, and the thrust wheel is used for driving the crawler belt to rotate; the supporting wheel is installed below the vehicle track device and used for bearing loads of the vehicle track device, the tensioning part is connected between the tensioning wheel and the support and used for providing tensioning force used for tensioning a track for the tensioning wheel, and the buffering assembly and the tensioning part are connected between the tensioning wheel and the support in different directions. When the tensioning wheel is buffered, buffering force different from the tensioning force in direction is provided for the tensioning wheel,