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    • 7. 发明授权
    • Inverted kingpost crane
    • 倒立式起重机
    • US5487478A
    • 1996-01-30
    • US323857
    • 1994-10-17
    • William D. Morrow
    • William D. Morrow
    • B66C23/20B66C23/84
    • B66C23/16
    • An inverted kingpost crane is disclosed, the crane including an upperworks supporting a crane boom, the upperworks supported on a rotating kingpost, the kingpost supported in a sleeve, an upper radial bearing structure intermediate an upper section of the kingpost and the sleeve, a lower bearing structure comprising a thrust bearing and a radial bearing disposed intermediate a lower section of the kingpost and the sleeve. The upper bearing and the lower bearing structure are constructed of a relatively soft bearing material, the bearing material providing a sacrificial wearing surface between the rotating kingpost and the stationary sleeve.
    • 公开了一种颠倒式的主桅起重机,该起重机包括一个支撑起重机吊臂的上部工件,上部工件支撑在一个旋转的主柱上,支撑在一个套筒中的主柱,一个位于主柱和套筒上部之间的上部径向轴承结构,一个下部 轴承结构包括推力轴承和设置在主柱和套筒的下部之间的径向轴承。 上轴承和下轴承结构由相对柔软的轴承材料构成,轴承材料在旋转的主柱和静止套筒之间提供牺牲磨损表面。
    • 9. 发明授权
    • Movable crane apparatus
    • 活动起重机械
    • US5901864A
    • 1999-05-11
    • US842235
    • 1997-04-23
    • William D. Morrow
    • William D. Morrow
    • B66C23/16B66C17/06
    • B66C23/16
    • A movable pedestal or kingpost type luffing crane that includes an upperworks, having a crane boom, rotatably mounted on a crane support. The crane support extends below the upperworks. The movable crane is constructed to be selectively maintained in or removed from a receiving socket. Movement prevention means prevents the radial and vertical movement of the crane support in the receiving socket. Anti-rotation means prevents the rotation of the crane support in the receiving socket. A centering means is also provided which facilitates the centering of the crane support means within the receiving socket. Providing a plurality of receiving sockets located at predetermined locations provides a system wherein the movable crane may be moved from socket to socket and from location to location.
    • 一种可移动底座或主卧式起重机,其包括具有起重机吊臂的上部工件,其可旋转地安装在起重机支架上。 起重机支架延伸到上部的下方。 可移动起重机被构造成选择性地保持在接收插座中或从接收插座移除。 运动防止装置防止起重机支撑件在接收插座中的径向和垂直运动。 防转动装置可防止起重机支架在接收座中旋转。 还提供了一种定心装置,其有助于起重机支撑装置在接收插座内的对中。 提供位于预定位置处的多个接收插座提供了一种系统,其中可移动起重机可以从插座移动到插座并且从一个位置移动到另一个位置。