| 摘要 |
PROBLEM TO BE SOLVED: To provide a uniaxial eccentric screw pump compact in a longitudinal direction, and capable of restraining problems such as stick slip or damage of a shaft coupling.SOLUTION: A uniaxial eccentric screw pump 10 includes a power transmission section 72 rotated by power of a driving machine 80, a rotor 60 constituted by a male screw type shaft body, a stator 50 into which the rotor 60 can be inserted and having an inner peripheral surface 52 formed in a shape of a female screw type, and a shaft coupling 76 for connecting the power transmission section 72 and the rotor 60 so that the rotor 60 is eccentrically rotatable and revolves along the inner peripheral surface 52 of the stator 50 while rotating in an inner side of the stator 50. The shaft coupling 76 is constituted by a flexible shaft coupling, and has elasticity in an axial direction.SELECTED DRAWING: Figure 1 |
