| 摘要 |
<p>A hydraulically detachable coupling (4) mounted detachably on a rotating shaft (2) of a rotating machine, comprising: a coupling sleeve (4b) which is fitted on a shaft end portion of the rotating shaft (2), the coupling sleeve (4b) including an interference fitting portion which is interference-fitted on an outer peripheral surface of the shaft end portion by a hydraulic pressure, and an engagement portion (4b-b) which engages the outer peripheral surface of the shaft end portion at a plurality of locations in a circumferential direction, the interference fitting portion and the engagement portion being located adjacent to each other, characterized in that the engagement portion is a straight hole portion having keyways formed therein, the keyways corresponding to a plurality of keyways formed in a straight shaft portion of the shaft end portion, one of the corresponding keyways is a groove of a rectangular cross section into which a square key is inserted, and other of the corresponding keyways are taper grooves of a semicircular cross section into which round taper keys are inserted.</p> |
