Pressure roller apparatus for rock breaking
    6.
    发明授权
    Pressure roller apparatus for rock breaking 失效
    压力滚筒设备

    公开(公告)号:US3645579A

    公开(公告)日:1972-02-29

    申请号:US3645579D

    申请日:1969-07-10

    Inventor: MARCOVITCH JACOB

    CPC classification number: E21C25/16

    Abstract: This invention relates to methods of rock breaking which comprise orbiting small rollers around a backing roller that is urged towards the rock face. The rollers each have a raised working zone which is preferably circular in section and which may have hard metal inserts. The rollers may be moved in an arc over the rock face or may be moved stepwise thereof. The working zones apply substantial localized forces to the rock face which forces cause the rock face to break.

    Abstract translation: 本发明涉及岩石破坏方法,其包括围绕被推向岩石面的支承辊周围的小滚轮。 辊子各自具有凸起的工作区域,其优选是圆形截面并且可以具有硬金属插入件。 辊可以在圆弧上移动到岩石表面上或者可以逐步地移动。 工作区将大量的局部力量施加到岩面上,这些力使岩面破裂。

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