The invention discloses a compressor, and belongs to the technical field of compressing devices. The compressor is designed for solving the problems that according to an existing device, crankshafts intervene, and are low in strength. The compressor comprises a crankshaft and a rotor iron core and further comprises a piece-shaped baffle; one face of the baffle is attached to the supporting face of the long-axis trimming position of the crankshaft, the other face of the baffle is attached to the rotor iron core, the baffle is of an annular structure, an inner ring of the baffle comprises an arc line segment and a straight line segment, and the arc line segment and the straight line segment are connected to form a close structure; the crankshaft is arranged in the inner ring of the baffle in a penetrating manner; and the compressor solves the intervening problem of the crankshaft and the transition corner at the connecting position of the circular arc and the straight line of the rotor iron core in an existing structure, it is ensured that after being assembled, the rotor iron core cannot incline, and coaxiality of a stator-rotor cannot be affected; and a back chipping groove does not need to be formed in the root of the supporting face of the long-axis trimming position of the crankshaft, and it is ensured that the crankshaft has the enough strength.