Converter for linear motion and rotary motion

The invention provides a converter for linear motion and rotary motion. The converter for the linear motion and the rotary motion comprises a machine shell (10), a magnetism regulation mechanism which is arranged in the machine shell and is connected with the machine shell, a rotor which is arranged in the magnetism regulation mechanism and an active cell which is arranged outside the magnetism regulation mechanism, wherein an inner air gap is formed between the magnetism regulation mechanism and the rotor, an outer air gap is formed between the magnetism regulation mechanism and the active cell, the rotor is connected with the machine shell (10) through a bearing and rotates freely around the axis, the active cell is connected with the machine shell (10) through a guide rail or an idler wheel and moves in a translational mode along a plane, the magnetism regulation mechanism comprises magnetism regulation blocks (4) and non-magnetic packing media (5), the space between every two adjacent magnetism regulation blocks (4) is filled with the non-magnetic packing media (5), and the magnetism regulation blocks (4) and the non-magnetic packing media (5) are arranged integrally in a staggered mode. The converter for the linear motion and the rotary motion has the advantages of being capable of achieving interconversion between the linear motion and the rotary motion and adjusting the relative speed of the linear motion and the rotary motion, free of contact, low in noise, high in efficiency and the like.