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    • 8. 发明授权
    • Mineral winning ploughs
    • 矿物犁
    • US4035025A
    • 1977-07-12
    • US646102
    • 1976-01-02
    • Martin HermannOswald BreuerAlois Hauschopp
    • Martin HermannOswald BreuerAlois Hauschopp
    • E21C27/32E21C27/34E21C27/35
    • E21C27/32E21C27/34
    • A coal plough is composed of two spaced-apart interconnected bodies which engage on a guide and which are moved along the guide to strip coal from a coal face. Each body is provided with various sets of cutter bits located at both its end regions and a floor cutter adjustable to control the height of cutting. The cutter bits at the inner face end regions of the bodies project further outwards towards the coal face than the other bits. During operation when the bodies move in one direction along the guide, cutter bits at the forward outer end region of the leading body cut into the coal face and the following-up cutter bits at the forward inner end region of the lagging body also cut into the face. The remaining cutter bits do not engage on the coal face.In this way the cutting operation is performed by both bodies and similarly both bodies can assist into transferring the coal detached from the face over the guide and into a scraper-chain conveyor.
    • 煤犁由两个间隔开的相互连接的主体组成,这两个相互连接的主体接合在引导件上并且沿导向件移动以从煤面剥离煤。 每个主体都设置有位于其两个端部区域的各种刀具位置,并且地板刀具可调节以控制切割高度。 尸体的内表面末端区域的切削刀头比其他钻头更向外朝向煤面突出。 在主体沿着导向件沿一个方向移动的操作过程中,前导体前端区域的切削刀头切入煤面,并且滞后体的前端内部区域的后刀切削刀头也切入 的脸。 剩余的刀头不接合在煤面上。