Mining machines with extensible probe arm
    1.
    发明授权
    Mining machines with extensible probe arm 失效
    采矿机具有可扩展探头臂

    公开(公告)号:US3984147A

    公开(公告)日:1976-10-05

    申请号:US579241

    申请日:1975-05-20

    IPC分类号: E21C25/06 E21C35/10 E21C27/24

    CPC分类号: E21C35/10 E21C25/06

    摘要: A cutting horizon sensing probe of a ranging drum shearer mining machine is mounted on a telescopic arm pivotally supported on the body of the machine such that when it is desired to move the probe into its operational position the arm is first extended from its non-operational position to an intermediate position and is then pivoted towards its operational position.

    摘要翻译: 测距鼓式剪切机采矿机的切割水平传感探头安装在可枢转地支撑在机器主体上的伸缩臂上,使得当希望将探头移动到其操作位置时,臂首先从其不可操作的 位置到中间位置,然后枢转到其操作位置。

    Mining machines
    2.
    发明授权
    Mining machines 失效
    采矿机

    公开(公告)号:US4062593A

    公开(公告)日:1977-12-13

    申请号:US660814

    申请日:1976-02-24

    IPC分类号: E21C31/10 E21C35/12

    CPC分类号: E21C31/10

    摘要: A linear potentiometer is attached to the ranging arm of a ranging arm shearer such that it slides on the upper flange of the face conveyor to sense the height of the cutter drum relative to the conveyor.

    摘要翻译: 线性电位器连接到测距臂剪切机的测距臂,使得其在面传送器的上凸缘上滑动以感测切割滚筒相对于输送机的高度。