| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic rotating mechanism capable of variably controlling pressing force of a tube, and capable of obtaining the required pressing force of the tube without restricting a movement distance of a rotor, and a tube pump having the same.SOLUTION: An electromagnetic rotating mechanism 1 includes a rotor 2 having an annular magnet 3, a stator 4 opposite against in plane to the magnet 3 and having a plurality of coils 5 annularly aligned and causing magnetic force to act on the rotor 2, and a control part for energizing and controlling the coil 5. The magnet 3 and the coil 5 are respectively magnetized or excited in an axial direction, and at least one of them is arranged in multiple tiers concentrically. The control part controls the magnetic force acting on the rotor 2, and pressing force of a tube can be variable. The magnet 3 or the coil 5 is mutually attracted or repelled, and the rotor 2 is moved, and accordingly, by suitably selecting these constitutions, the required pressing force of the tube 102 can be obtained without restricting the movement distance of the rotor 2. |
