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    HIGH-VOLTAGE PULSE DISCHARGE AND MECHANICAL COMBINED ROCK BREAKING-BASED NOVEL BORING MACHINE
    32.
    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.

    SYSTÈME D'EXCAVATION À OUTILS INTERCHANGEABLES
    39.
    发明公开
    SYSTÈME D'EXCAVATION À OUTILS INTERCHANGEABLES 有权

    公开(公告)号：EP3332069A1

    公开(公告)日：2018-06-13

    申请号：EP16760531.0

    申请日：2016-08-04

    申请人： Soletanche Freyssinet

    发明人： COUDRY, Michel ,  RODRIGUEZ, Pascal ,  BOREL, Serge ,  PERPEZAT, Daniel

    IPC分类号： E02F3/24 ,  E02F3/36 ,  E02F3/92 ,  E21C37/18 ,  E21B7/15 ,  B02C19/18 ,  E02F3/96 ,  E02F5/30

    摘要： The invention relates to the field of excavation systems and more particularly of excavation systems comprising electropulse excavation tools. An excavation system according to the invention comprises a support chassis (34), a hydraulic circuit with a pump, and a first and second excavation tool. One of said first and second excavation tools is a mechanical excavation tool (1') comprising a hydraulic actuator and a mounting interface with at least one mechanical fixing member and at least one hydraulic coupling in fluidic communication with said hydraulic actuator, while the other of said first and second excavation tools is an electropulse excavation tool (1) comprising an electric generator (3) with a rotary shaft for generating electricity from the rotation of the rotary shaft, a hydraulic motor coupled to said rotary shaft to actuate the rotation of the rotary shaft, an electronic power module (4) electrically connected to the electric generator (3) so as to be powered by the electric generator (3) so as to generate electric pulses of an instantaneous power that is higher than an instantaneous power of the electric generator (3), a plurality of electrodes (5a, 5p), of which at least one electrode (5a) connected to said power electronics module (4), which are arranged on said frontal face, and a mounting interface (14) with at least one mechanical fixing member (22) and at least one hydraulic coupling (20) in fluidic communication with said hydraulic motor (2). Each of the mounting interfaces of the first and second excavation tools is capable of alternate and releasable mounting of the corresponding excavation tool under the support chassis (34) of the excavation system, with the corresponding hydraulic coupling in fluidic communication with said hydraulic circuit of the excavation assembly.