发明名称 |
Transport apparatus and method of forming same |
摘要 |
Mining apparatus in which a cutting wheel supporting a plurality of roller-cutters rotates about a horizontal axis and is supported on a slewing boom for cutting a tunnel with a flat floor and roof and elliptical walls as it slews across a mining face. The slewing boom is supported on a main beam assembly, the front end of which rests on powered crawler tracks and the rear end of which passes through a gripper assembly which may be clamped between the floor and roof of the tunnel, and against which the main beam assembly may be urged forward for engaging the roller-cutters with the mining face. A preload crawler is urged against the roof of the tunnel above the powered crawler tracks to locate the main beam assembly rigidly relative to the tunnel such that the roller-cutters may cut the rock in the mining face with minimal loss of cutting force due to vibration.
|
申请公布号 |
US5205612(A) |
申请公布日期 |
1993.04.27 |
申请号 |
US19910701503 |
申请日期 |
1991.05.16 |
申请人 |
Z C MINES PTY. LTD. |
发明人 |
SUGDEN, DAVID B.;TURNER, JOHN;BOYD, ROBERT J.;HARTMAN, THOMAS M.;DOLLINGER, GERALD L.;MOORE, JOHN G. |
分类号 |
E21C35/00;E21C35/16;E21D9/10 |
主分类号 |
E21C35/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|