- 专利标题: Shield tunnelling machine
-
申请号: US622413申请日: 1990-12-03
-
公开(公告)号: US5102201A公开(公告)日: 1992-04-07
- 发明人: Toshio Akesaka , Makoto Kajiyama
- 申请人: Toshio Akesaka , Makoto Kajiyama
- 申请人地址: JPX Tokyo
- 专利权人: Kabushiki Kaisha Iseki Kaihatsu Koki
- 当前专利权人: Kabushiki Kaisha Iseki Kaihatsu Koki
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-314166 19891205
- 主分类号: E21D9/08
- IPC分类号: E21D9/08 ; E21D9/087 ; E21D9/10
摘要:
A shield tunnelling machine is provided that includes a cylindrical shield body; a rotary cutter head disposed on a front end of the shield body and provided with a face plate having one or a plurality of slits extending in the radial direction; and intermediate support member for supporting a plurality of cutter bits respectively having forward bit portions and backward bit portions in each of the slits; a support structure for supporting the intermediate support member swingably around an axis extending in the radial direction; a member for movably guiding the support structure in the axial direction of the shield body; and a cylinder device and a piston for moving the support stucture in the axial direction of the shield body to move the cutter bits toward and away from the front face of the face plate, the face plate and the guide member sharing the excavation force exerted against the cutter bits.
公开/授权文献
信息查询