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    Backhoe
    1.
    发明授权
    Backhoe 失效
    反铲

    公开(公告)号：US3997987A

    公开(公告)日：1976-12-21

    申请号：US588703

    申请日：1975-06-20

    申请人： Audie B. Tomlinson

    发明人： Audie B. Tomlinson

    IPC分类号： E02F3/345 ,  E02F3/36 ,  E02F9/22 ,  E02F5/02

    CPC分类号： E02F3/3677 ,  E02F3/345 ,  E02F9/2275

    摘要： A backhoe has a main boom mounting a short shaft in preloaded thrust bearings. A gear casing floatingly mounted on the main boom carries a worm driven by a chain-and-sprocket drive to drive a worm gear on the shaft. A jib boom fixed to the lower end of the shaft journals a yoke about one axis and a bucket is pivotal on the yoke about a transverse axis. A crowd cylinder mounted on the boom is connected by linkage and a universal joint to the bucket, and a hydraulic motor mounted in a cup-like trunnion member on the lower end of the jib boom and journaling the yoke has its drive splined to the yoke for tilting the bucket sidewise.

    摘要翻译： 反铲具有在预加载的推力轴承中安装短轴的主臂。 浮动地安装在主起重臂上的齿轮箱承载由链轮和链轮驱动器驱动的蜗杆，以驱动轴上的蜗轮。 固定到轴的下端的起重臂吊架围绕一个轴线枢转轭架，并且铲斗在轭架上围绕横向轴线枢转。 安装在起重臂上的人群气缸通过联动装置和万向接头连接到铲斗，并且安装在起重臂的下端的杯形耳轴构件的液压马达并且使轭架的轴颈具有花键到轭 用于倾斜铲斗。