Different-direction deformation wheel-track switching variant wheel

A variant wheel type walking device capable of achieving wheel-track switching comprises a main shaft, a spoke assembly mechanism, a rim assembly mechanism, a changing and tensioning mechanism, a chain wheel driving mechanism and a switchable transmission mechanism. The spoke assembly mechanism and the chain wheel driving mechanism are installed on the main shaft, the rim assembly mechanism is connected with the spoke assembly mechanism, the outer ring of the rim assembly mechanism is provided with a crawler belt through a plurality of bearing wheel sets, and the rim assembly mechanism drives the transformation and tensioning mechanism to deform. Therefore, the shape of the cross section of the crawler belt is changed between a circle and a triangle, and the shape of the crawler belt is changed. The switchable transmission mechanism transmits rotation of the wheel type driving gear and the chain wheel driving mechanism when the section of the composite wheel is round and triangular, so that the device is driv