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    HIGH-VOLTAGE PULSE DISCHARGE AND MECHANICAL COMBINED ROCK BREAKING-BASED NOVEL BORING MACHINE
    6.
    发明公开
    HIGH-VOLTAGE PULSE DISCHARGE AND MECHANICAL COMBINED ROCK BREAKING-BASED NOVEL BORING MACHINE 审中-公开

    公开(公告)号：EP3882434A1

    公开(公告)日：2021-09-22

    申请号：EP19883683.5

    申请日：2019-10-08

    申请人： China Railway Engineering Equipment Group Co., Ltd.

    发明人： JIANG, Lijie ,  LI, Jianbin ,  WEN, Yongliang ,  JIA, Lianhui ,  HE, Fei

    IPC分类号： E21D9/06 ,  E21B7/15

    摘要： Disclosed is a novel boring machine based on combined high-voltage pulse discharge and mechanical rock breaking, which comprises a main boring machine and a rear accessory, wherein a cutterhead and cutter system (1) is arranged at a front end of the main boring machine, electrodes (21) are arranged on the cutterhead and cutter system (1), and a high-voltage pulse arc control system is connected to the electrode (21). The cutterhead and cutter system comprises a cutterhead body (22) and rolling cutters (20), the electrodes (21) are electrode scrapers made of an electrode material, the electrode scrapers and the rolling cutters (20) are both arranged on the cutterhead body (22), and the cutterhead body (22) is connected to a main drive arranged in the main boring machine. The boring machine uses combined high-voltage pulse discharge and mechanical rock breaking to produce the rock breaking effect of a high-voltage pulse arc breakdown coupled with various forms such as the rolling cutters and the electrode scrapers, so that the rock breaking efficiency is improved, cutter wear is reduced, and a construction process is accelerated.