UNIAXIAL ECCENTRIC SCREW PUMP

摘要

[Problem] The purpose is to provide a uniaxial eccentric screw pump allowing for easy separation of a stator into an outer tube and a lining member, and for easy adjustment of the tightening margin. [Solution] The stator (20) has an outer tube (24) and a tubular liner (22) integrally formed so that the inner circumferential surface thereof has an internal thread. Flanges (26, 26) extending diametrically outward are provided at both ends of the liner (22), and an outer-tube mounting unit (28) is provided between the flanges. The outer tube (24) is mounted in a non-bonded state in the outer-tube mounting unit (28), and both ends thereof abut against the flanges (26, 26). The tightening tolerance can be adjusted by inserting or removing a shim (25) between the liner (22) and the outer tube (24).