Slideway means and excavating machines comprising slideway means
    1.
    发明授权
    Slideway means and excavating machines comprising slideway means 失效
    滑道是指包括滑道装置的挖掘机

    公开(公告)号:US4303275A

    公开(公告)日:1981-12-01

    申请号:US99096

    申请日:1979-11-30

    IPC分类号: E21D9/06 E21D9/08 E21D9/10

    摘要: A slideway arrangement comprises a slideway component and a slide component guidably slidable with respect to the slideway component under the action of a hydraulic ram. At least one of the components comprises at least one wedge arrangement and a hydraulic ram for urging the wedge arrangement to releasably wedge one of the components to the other of the components.

    摘要翻译: 滑道装置包括滑动部件和滑动部件,滑动部件可在液压压头的作用下相对于滑道部件可引导地滑动。 至少一个部件包括至少一个楔形装置和用于推动楔形装置以将部件中的一个可释放地楔入另一个部件的液压柱塞。

    Excavating machines for excavating rock and minerals having first and
second alternative modes of control
    3.
    发明授权
    Excavating machines for excavating rock and minerals having first and second alternative modes of control 失效
    用于挖掘具有第一和第二替代控制模式的岩石和矿物的挖掘机

    公开(公告)号:US4322113A

    公开(公告)日:1982-03-30

    申请号:US137011

    申请日:1980-04-03

    CPC分类号: E21D9/108 E21C35/10

    摘要: A excavating machine for excavating rock and minerals from a working face having a carriage with a boom support. A cutter carrying boom is moveably supported by the boom support, and a means is provided for moving the boom relative to the carriage. A drive means is included with a sensing control means for controlling the movement of the boom relative to the carriage. The sensing control means senses a parameter proportional to the reaction cutting force on the cutter. Control over the movement of the boom is provided in two alternative modes of control. A rate mode control for controlling the machine in accordance with a preselected rate of the output of the drive means is provided, as well as a load mode control in which the movement of the boom is controlled maintaining the reaction cutting force exerted by the cutter substantially at or below a certain value.

    摘要翻译: 一种用于从具有支架支架的工作面挖掘岩石和矿物的挖掘机。 一个切割器承载起重臂由悬臂支撑件可移动地支撑,并且提供一个用于相对于托架移动悬臂的装置。 驱动装置包括用于控制起重臂相对于滑架的运动的感测控制装置。 感测控制装置感测与切割器上的反作用力相对应的参数。 在两种可选的控制模式中提供对动臂运动的控制。 提供了一种用于根据驱动装置的输出的预选速度来控制机器的速率模式控制,以及负载模式控制,其中控制悬臂的运动被保持,从而保持由刀具施加的反作用力基本上 等于或低于某一值。