| 摘要 |
PROBLEM TO BE SOLVED: To provide joint structure for a uniaxial eccentric screw pump, for shortening a pump length by using an Oldham's joint jointing a short whole length out of universal joints and ensuring smooth sliding action of a sliding part of a joint to prevent significant abrasion and stably serve for a long period of time. SOLUTION: In joint structure for a uniaxial eccentric screw pump 1, the Oldham's joint 10 allowing eccentric rotation of a rotor 2 in a stator 3 is interposed between an end part of the rotor 2 eccentrically rotated in the stator 3 and an end part of a drive shaft 7 rotatably driving the rotor 2. A rubber cover seal 14 covers between male bosses 11 and 13 on both sides including a female boss 12 constituting the Oldham's joint 10 and positioned in the middle thereof, and the inside of the rubber cover seal 14 is filled with lubricant and then is sealed. COPYRIGHT: (C)2006,JPO&NCIPI
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