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    • 10. 发明专利
    • Propeller thrust transmission device for marine propulsion system
    • 用于海洋推进系统的螺旋桨传动装置
    • JP2008149792A
    • 2008-07-03
    • JP2006337522
    • 2006-12-14
    • Yamaha Marine Co Ltdヤマハマリン株式会社
    • IWASHITA TAKASHI
    • B63H23/34B63H20/00B63H20/14F16F15/12
    • B63H23/321B63H2023/325
    • PROBLEM TO BE SOLVED: To provide a propeller thrust transmission device for a marine propulsion system capable of restraining a spacer from causing precession around all circumferences of a propeller shaft tapered portion even if an upward resistance force of water works on the propeller. SOLUTION: A spacer 40 which is divided to a first division body 41 and a second division body 42 is fitted on the tapered portion 30b of an outer shaft portion 30a of the propeller shaft 30, and a thrust force working on the propeller 31 is received by the tapered portion 30b of the propeller shaft 30 through the spacer 40. The first division body 41 has a tapered hole 41a fitted in the tapered portion 30b so as to face each other. The second division body 42 has a portion extended from one side of the propeller side of an annular wall 42a which is fitted into a hole 33b of an attachment portion 33 with a gap S to the propeller shaft 30 as a small-diameter sleeve portion 42b, and a portion extended from the other side of the annular wall 42a which is fitted to an outer periphery surface 41c positioned outside the tapered hole 41a of the first division body 41, as a large-diameter sleeve portion 42c. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种用于船用推进系统的螺旋桨推力传动装置,其能够限制隔离件在螺旋桨轴向上的作用力的作用下,在螺旋桨轴锥形部分的所有周向周围进行进动。 解决方案:分隔成第一分隔体41和第二分隔体42的间隔件40装配在传动轴30的外轴部30a的锥形部分30b上,并且在螺旋桨上作用推力 31由传动轴30的锥形部分30b通过间隔件40接收。第一分隔体41具有一锥形孔41a,该锥形孔41a装配在锥形部分30b中以便彼此面对。 第二分割体42具有从环形壁42a的螺旋桨侧的一侧延伸的部分,该环形壁42a的一侧与作为小直径套筒部分42b的螺旋桨轴30配合有具有间隙S的安装部33的孔33b 以及从位于第一分割体41的锥形孔41a外侧的外周面41c嵌合的环状壁42a的另一侧延伸的部分作为大径套筒部42c。 版权所有(C)2008,JPO&INPIT