METHOD FOR CONNECTING VALVE SHAFT AND ACTUATOR DRIVING SHAFT WITH EACH OTHER

摘要

PROBLEM TO BE SOLVED: To perform alignment for center axes only by inserting a valve shaft and an actuator driving shaft into a cylindrical body fixed to the tip part of a valve box from opposing directions so as to enable even unskilled wofkers to perform assembling work for joining the valve shaft and the actuator driving shaft together within a short time and to facilitate disassembling work for maintenance. SOLUTION: In the tip part of a valve box 1, a cylindrical body 7 using its inner circumference as a sliding surface is fixed by aligning its center line with those of a valve shaft 3 and an actuator driving shaft 5 and engaging parts are formed in the tip parts of the valve shaft 3 and the actuator driving shaft 5. Further, the tip parts of the valve shaft 3 and the actuator driving shaft 5 are inserted from the opposing directions of the cylindrical body 7 and engaged with each other.