公开(公告)号：US5032039A

公开(公告)日：1991-07-16

申请号：US609173

申请日：1990-11-05

申请人： Hakumi Hagimoto ,  Yutaka Kashima ,  Norio Kondo ,  Tsutomu Tomisawa ,  Kiichi Honma

发明人： Hakumi Hagimoto ,  Yutaka Kashima ,  Norio Kondo ,  Tsutomu Tomisawa ,  Kiichi Honma

IPC分类号： E21D9/08 ,  E21D9/087

CPC分类号： E21D9/087

摘要： An underground excavator includes a chamber defined in the forward section of an excavator body for receiving excavated material such as soil, sand, gravel, clay and their mixtures. A rotary cutter is mounted to the forward end of a rotary shaft for penetrating through the chamber for axial rotation and simultaneous rocking in an axial direction. The cutter has a conical cutter face plate having holes for passing the excavated material of a diameter smaller than an opening disposed in the chamber. Any gravel or the like present in the advancing route to the underground excavator and smaller than the holes of the cutter is received into the chamber to be discharged from the excavator. Any gravel larger than the holes or the like not receivable into the chamber is moved quickly along the conical cutter face plate toward peripheral ground layer by being subjected to the rocking motion of the conical cutter face plate simultaneously with the rotation of the cutter during advancement of the excavator. Facilities and labor formerly required for removing larger gravel or like materials can be omitted to remarkably reduce excavation costs.

摘要翻译： 地下挖掘机包括一个限定在挖掘机主体前部的腔室，用于接收挖土材料，如土壤，沙子，砾石，粘土及其混合物。 旋转切割器安装在旋转轴的前端，用于穿透室，用于轴向旋转并且沿轴向同时摇摆。 切割器具有锥形切割器面板，该圆锥形切割器面板具有孔，用于使直径小于设置在腔室中的开口的挖掘材料通过。 存在于进入地下挖掘机的前进路径中并且小于切割器的孔的任何砾石等被接收到腔室中以从挖掘机排出。 任何大于不能接收到室中的孔等的砾石通过在锥形切割面板的前进期间与切割器的旋转同时受到锥形切割器面板的摇摆运动而沿锥形切割器面板快速移动到周边地层 挖掘机。 以前用于去除较大的砾石或类似材料的设备和劳动可以省略，以显着降低挖掘成本。