Crankshaft clamp with limiting angle adjusting function

The crankshaft clamp with the limiting angle adjusting function comprises a crankshaft and a clamp connecting structure, the upper end of the clamp connecting structure is connected with the crankshaft in a limiting mode, the clamp connecting structure can carry and support the crankshaft, and meanwhile the clamp connecting structure can adjust the angle of the crankshaft. The clamp connecting structure comprises a bearing part and a butt-joint adjusting part, the butt-joint adjusting part is fixedly connected to the side end of the bearing part, the bearing part is used for bearing connection and limiting the crankshaft, and the butt-joint adjusting part is used for side connection of the crankshaft. The bearing component comprises a connecting guide rod, a bearing frame, a spring base, a side vertical plate, a hinge frame, a bearing arc frame, an adjusting handle and a nesting frame, the spring base is arranged in the center of the upper end of the bearing frame, the side vertical plate is fixedly connected