Combined wheel and automobile

The invention discloses a combined wheel and an automobile. The combined wheel comprises a main hub and multiple branched spokes uniformly dispersed around the outer circumference of the main hub, andeach branched spoke is fixedly connected with the main hub; each branched spoke comprises a rubber face away from the main hub, the rubber faces form a cambered surface, and the rubber faces of the branched spokes are spliced to form a complete circumferential wheel excircle face; a main oil way is arranged in the main hub, and each branched spoke comprises a hydraulic structure communicated withthe corresponding main oil way. Under action of external force, each rubber face can move in a direction close to or away from the main hub through the corresponding hydraulic structure. Riding comfort can be maintained when the automobile travels in a section with bad road conditions by changing diameter of the wheel; the combined wheel is simple in structure, easy to realize, low in manufacturing cost and capable of pre