| 摘要 |
PROBLEM TO BE SOLVED: To provide a uniaxial eccentric screw-pump capable of solving various problems caused by an intermediate rotating shaft such as swinging rotation by the intermediate rotating shaft or fretting corrosion by eliminating the intermediate rotating shaft which was conventionally essential or customarily essential for disassembly work of a shaft seal part, and capable of achieving reduction of length of a pump, simplification of a structure, reduction of the weight and miniaturization. SOLUTION: In the uniaxial eccentric screw-pump, a male screw shaped rotor 5 connected to a driving shaft 7 of a driving motor 6 disposed on an end of a motor bracket 15 connected to a pump casing 2 through a connecting rod 12 and universal joints 9 and 14 is rotatably fitted into a female screw shaped stator 3a to be eccentrically rotated, and an object to be carried is carried. The driving shaft 7 of the driving motor 6 is inserted into the pump casing 2 from an end opening 2a of the motor bracket 15, an outer peripheral surface of a driving shaft insertion part 7a is sealed by a mechanical seal 8, and a joint head part 9 is directly attached to the driving shaft end 7a, and is connected to an end of the connecting rod 12. COPYRIGHT: (C)2008,JPO&INPIT
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