| 摘要 |
PURPOSE:To make linkage between a pump shaft and a sleeve ever so easy as well as to aim at the promotion of easiness for disassembling, and vice versa, by installing each taper on the surface of a key being detachably inserted into a key way installed in the pump shaft at both sides of the key in the longitudinal direction and the motor side, respectively. CONSTITUTION:When a sleeve 14 is dislocated out of the specified position, each of tapers 15a and 18a is installed on the outer circumference of a key 15 as well as on the inner circumference of a key way 18 in the longitudinal direction respectively, so that the key 15, as shown in illustration, is thurst in a key way 16 of a pump shaft 4 by a tip of the sleeve 14 which is therefore inserted into the pump shaft 4 as far as a portion for the specified length. After setting a motor part 8 to a pressure vessel bottom part 1, the pump shaft 4 alone is gently rotated and fitted in the key way 18 whereby the pump shaft 4 and the sleeve 14 are easily and surely connectable in one. With this constitution, any damage to both the key 15 and the sleeve 14 is preventable and, what is more simplification in both assembling and disassembling operations is made attainable.
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