公开(公告)号：WO2014043658A3

公开(公告)日：2014-06-05

申请号：PCT/US2013060017

申请日：2013-09-16

Applicant: JOY MM DELAWARE INC

Inventor： SMITH RUSSELL P ,  HUNTER ANDREW D ,  LUGG PETER A ,  SCHIRMER IAN B ,  KEECH GEOFFREY W ,  COATES CHRISTOPHER ,  NEILSON BRADLEY M

IPC: E21C25/00

CPC classification number: E21C25/06 ,  E21C5/00 ,  E21C27/16 ,  E21C31/02 ,  E21C35/00 ,  E21C41/16 ,  E21D9/102

Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.

Abstract translation: 刀头包括第一构件，切削刀头和第二构件。 第一构件包括第一端部和第二端部，并且包括第一质量块。 所述切割钻头被连接到靠近所述第二端的所述第一构件。 切削刀头包括可围绕轴线旋转的切削刃。 第二构件可围绕轴线旋转并且包括相对于轴线偏心定位的第二质量块。 第二质量块的旋转导致第一构件和切割钻头摆动。