| 摘要 |
PCT No. PCT/GB84/00148 Sec. 371 Date Jan. 4, 1985 Sec. 102(e) Date Jan. 4, 1985 PCT Filed May 2, 1984 PCT Pub. No. WO84/04367 PCT Pub. Date Nov. 8, 1984.In the field of fastening components together in such a way as to be able to transmit mechanical power, keyways and keys have been used; also, interlocking conical tapers have been used which are actuated either by a ring of screws or by oil-injection. The coupling according to the invention comprises an annular chamber housing an annular piston; the chamber and the piston have matching tapers. Oil is pumped into one end of the chamber to move the piston axially in one direction to cause radial expansion of the chamber to connect two components; oil is pumped into the other end of the chamber to move the piston in the opposite direction to disconnect said components. Uses of the coupling are, for example, to join the adjacent ends of coaxial shafts and to act as a locking bush to join concentrically arranged components. |
