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公开(公告)号：US20220136390A1
公开(公告)日：2022-05-05
申请号：US17436172
申请日：2020-03-02
发明人： Euan KIRKHOPE , Johannes WESSELMANN
摘要： The present invention pertains to a method for monitoring operation of a mining machine unit, particularly of a longwall mining system, having a shield unit connected to a material removing unit by means of an actuator for adjusting a distance between the shield unit and the material removing unit, the method comprises the steps of determining a position change of the shield unit during an actuating operation of the actuator; and a step of detecting a malfunction of the mining machine unit based on the determined position change.
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公开(公告)号：US20160123145A1
公开(公告)日：2016-05-05
申请号：US14889336
申请日：2014-05-09
摘要： A method of controlling a shearer is disclosed. The shearer may be configured to travel along a longwall face to extract material with a first cutting drum and a second cutting drum. The method may include setting a first cutting profile including a plurality of desired positions (Di) to be approached by the first cutting drum in a first travel direction (E). Further, the method may include determining a plurality of actual advancing vectors (vi) indicating a change of a position of the shearer resulting from advancing the shearer towards the longwall face. The method may also include determining a plurality of shearer orientations (Oi) along the longwall face. In addition, the method may include generating a second cutting profile to be approached by at least one of the first cutting drum and the second cutting drum in a second travel direction (F) of the shearer.
摘要翻译： 公开了一种控制采煤机的方法。 采煤机可以被构造成沿着长壁面行进以用第一切割滚筒和第二切割滚筒提取材料。 该方法可以包括设置包括第一切割滚筒在第一行进方向（E）处接近的多个期望位置（Di）的第一切割轮廓。 此外，该方法可以包括确定多个实际前进向量（vi），其指示由于将采煤机推向长壁面而导致的采煤机位置的变化。 该方法还可以包括沿长壁面确定多个剪切方向（Oi）。 此外，该方法可以包括产生第二切割轮廓，该第二切割轮廓将在第二切割滚筒和第二切割滚筒中的至少一个沿着第二行进方向（F）接近。
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