Efficient linear motion double-crankshaft piston structure, compressor and vacuum pump

The invention relates to the technical field of connecting rod piston equipment, and particularly discloses an efficient linear motion double-crankshaft piston structure, a compressor and a vacuum pump. The efficient linear motion double-crankshaft piston structure is provided with a double-shaft motor, and the double-crankshaft piston structure comprises a connecting rod, a first eccentric wheel and a transverse sliding guide assembly; a bearing seat is arranged in the middle of the connecting rod, a first bearing is installed in the bearing seat, a second eccentric wheel is installed in the first bearing, a second bearing is installed on one side of the second eccentric wheel, a second eccentric protruding column is installed on the other side of the second eccentric wheel, and the second eccentric wheel and the second bearing are eccentrically arranged. The first eccentric convex column is connected with a second bearing, leather cup assemblies are arranged at the upper end and the lower end of the connect