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2. 发明授权

US5765925A Tunnel boring machine for hard ground and soft ground 失效
标题翻译：隧道掘进机硬地面和软土地面
公开(公告)号：US5765925A
公开(公告)日：1998-06-16
申请号：US630475
申请日：1996-04-10
申请人： Yasunori Kondo , Yuko Fukuda , Takato Yoshida
发明人： Yasunori Kondo , Yuko Fukuda , Takato Yoshida
IPC分类号： E21D9/06 , E21D9/087 , E21D9/11
CPC分类号： E21D9/112
摘要： A tunnel boring machine for boring a tunnel through hard and soft grounds includes a front body, a cutter head mounted to the front body and having a cutter for boring a hard round, and a drive unit rotatably supporting the cutter head for driving the cutter head. A main beam is operatively connected to the cutter head drive unit and extends rearward therefrom. A gripper body is supported by a rear end portion of the main beam to be slidable in an axial direction thereof and is provided with a main gripper to be movable along an radial direction of the main beam. A first thrust jack is mounted to be fitted between the main gripper and the main beam for advancing the cutter head and the cutter head drive unit. A shield shell is disposed so as to surround the cutter head drive unit. A second thrust jack is disposed in the shield shell, and a front gripper is mounted to the shield shell to be movable out of and into the shield shell.
摘要翻译：一种用于通过硬和软接地镗孔的隧道掘进机包括前体，安装在前体上的刀头和具有用于钻出硬圆的切割器和驱动单元，该驱动单元可旋转地支撑用于驱动刀头的刀头。主梁可操作地连接到刀头驱动单元并从其向后延伸。夹持器主体由主梁的后端部沿其轴向方向滑动而设置，主夹具可沿主梁的径向移动。安装第一推力千斤顶以安装在主夹持器和主梁之间，用于使刀头和刀头驱动单元前进。屏蔽壳设置成围绕刀头驱动单元。第二推力千斤顶设置在屏蔽壳体中，并且前夹具安装到屏蔽壳体上，以便能够移出外壳并进入屏蔽壳体。

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