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132 条记录 (耗时 0.012 秒)

    Skidder boom for tractor vehicles
    72.
    发明授权
    Skidder boom for tractor vehicles 失效
    拖拉机车辆的潜水员

    公开(公告)号：US3764020A

    公开(公告)日：1973-10-09

    申请号：US3764020D

    申请日：1971-07-26

    申请人： LOGGING SYST INC

    发明人： BATSON D

    IPC分类号： B66C13/18 ,  B66C23/06

    CPC分类号： B66C13/18 ,  B66C2700/062

    摘要： An articulated skidder boom includes a main boom pivoted to the rear of a skidder vehicle frame and a jib boom pivoted to the main boom. A winch mounted near the base of the boom has a winch cable which extends along the main boom to a guide sheave at the intersection of the main and jib booms and then through a fairlead at the outer end of the jib boom. Boom-operating cylinders enable swinging movement of the fairlead through a substantial arc from adjacent ground level to a position well above the vehicle and to various distances from the winch. A boom support bracket at the rear of the vehicle supports the outer end of the jib boom in one of three vertical positions to stabilize and resist rearward movement of the jib boom when the winch cable is under load. The winch and boom combination can be used for both log-skidding and log-loading operations, with the fairlead positioned accordingly.

    Skid wheel tractor utility boom
    73.
    发明授权
    Skid wheel tractor utility boom 失效
    滑轮拖拉机实用工具

    公开(公告)号：US3753508A

    公开(公告)日：1973-08-21

    申请号：US3753508D

    申请日：1971-06-24

    申请人： CARPENTER O

    发明人： CARPENTER O

    IPC分类号： B66C13/18 ,  B66C23/00

    CPC分类号： B66C13/18 ,  B66C2700/062

    摘要： A lightweight, hydraulically actuated boom adapted for rapid attachment to, and detachment from, a material-handling power boom. It comprises a base plate adapted to fit and to be latched to a cooperative mounting means on the free end of the power boom. A first arm is fastened to the base plate and carries a hudraulic cylinder. A second arm is hingedly supported from the free end of the first arm, the piston of the hydraulic cylinder being fastened to the second arm.

    摘要翻译： 适用于快速附接到物料搬运动力臂上和从物料搬运动力臂上卸下的重量轻的液压动臂。 它包括适于安装并锁定在动力臂自由端上的协作安装装置的基板。 第一臂固定在基板上，并带有液压缸。 第二臂从第一臂的自由端铰接地支撑，液压缸的活塞紧固到第二臂。