| 摘要 |
1420236 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 23 May 1973 [25 May 1972] 24596/73 Heading F2A In an assembly comprising a rolling bearing mounted in the stern-post of a ship, which bearing supports the propellor shaft 1 of the ship, means are provided for loading both axial ends of the bearing outer ring 4 so that quick, short axial movements of the propellor shaft are not transferred to any substantial extent to the outer ring, while longer, slower movements are permitted to be transferred and displace it. The loading means comprise an hydraulic piston 6 at each end of the ring 4. The pistons are pressurized by oil in passages 7, 8 which are connected via a reducing valve 9. Pressure balancing between the two pistons therefore take place only slowly. Safety valves 10 prevent build up of excessive pressures. Each piston may consist of a single annular member, or a plurality of separate members. The pistons may be solenoid-controlled. |
