UNIVERSAL JOINT AND UNIAXIAL ECCENTRIC SCREW PUMP

摘要

PROBLEM TO BE SOLVED: To provide a universal joint which can be easily dismantled and can reduce the problem of deterioration with time and the like due to abnormal wear accompanying local concentration of stress and to provide a uniaxial eccentric screw pump provided with the universal joint.

SOLUTION: The universal joint 80 is formed by pivotally supporting and connecting first and second connection parts 82 and 84 by pins A and B. A shaft insertion hole 98 in which the pin B can be inserted is provided in the nearly center part of the pin A. The pin A is inserted in first pin A insertion holes 90a and 90b and a second pin A insertion hole 94 and the pin B is inserted in first pin B insertion parts 92a and 92b, a second pin B insertion hole 96 and the shaft insertion hole 98 formed in the pin A to form a connection structure.

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