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1. 发明专利

JPH02304194A EXCAVATOR FOR REVERSE CONSTRUCTION METHOD 失效
公开(公告)号：JPH02304194A
公开(公告)日：1990-12-17
申请号：JP12519389
申请日：1989-05-18
申请人： MITSUBISHI KENSETSU KK
发明人： MIZUTANI YUICHIRO
IPC分类号： E21B4/18 , E21B7/28 , E21B17/07
摘要： PURPOSE:To continuously carry out excavation to a deep depth without requiring the connecting work of a drill pipes by telescopically fitting a plurality of drill pipes, so that excavation can be advanced forward while successively extending the drill pipes. CONSTITUTION:A plurality of drill pipes 1 are telescopically fitted, and a slurry pump 2, a wing bit 6, and a driving device thereof are installed below the innermost drill pipe 1n. And a complete set of these equipments are supported by wires 9, 9 through winches 8, 8 installed on the ground. Then, excavation is advanced forward, and the drill pipes 1 are successively extended as the excavation proceeds so as to correspond top the depth of excavation.

2. 发明专利

JPH0559879A CASING DRIVE TYPE INNER EXCAVATOR 失效
公开(公告)号：JPH0559879A
公开(公告)日：1993-03-09
申请号：JP21755291
申请日：1991-08-28
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI KENSETSU KK
发明人： SASAKI KIYOMI , OKUMOTO KAZUNOBU , MIZUTA SADACHIKA , MURAKAMI EIICHIRO , ONOMI HIROAKI , MIZUTANI YUICHIRO , NANBA SOJI
IPC分类号： E21B7/20 , E21B11/00
摘要： PURPOSE:To miniaturize a device by surely transmitting the rotating force via the coupling between an inner excavator main body and a casing, and reducing the coupling force. CONSTITUTION:In a casing drive type inner excavator, stoppers 22 are provided on the inner periphery of a cylindrical casing tube 21 penetrated into the ground and rotatively driven. Protruded pieces 46 moved outward when an inner tube 33 is lowered against an outer tube 32 by the tare weight are provided on an inner excavator main body 31 inserted into the casing tube 21 and provided with excavating edges 36 at the lower end section. When the protruded pieces 46 are coupled with the stoppers 22 of the casing tube 21, the rotating force of the casing tube 21 is transmitted to the inner excavator main body 31.

3. 发明专利

JPS6149021A Underground continuous wall work 失效
标题翻译：地下连续工作
公开(公告)号：JPS6149021A
公开(公告)日：1986-03-10
申请号：JP16986884
申请日：1984-08-14
申请人： Mitsubishi Kensetsu Kk
发明人： MIZUTANI YUICHIRO
IPC分类号： E02D5/18 , E02F5/04
CPC分类号： E02D5/18
摘要： PURPOSE:To easily excavate a trench by a method in which an excavator is set in a vertical trench formed on the side of an underground buried object, and the excavator is turned toward the side of the buried object to make its attitude horizontal state and lowered. CONSTITUTION:When the motor 13 of an excavator 7 set in a vertical trench 5 is operated, the drive force is transmitted to an excavating part 10 and a screw 20 is turned around a cylinder 19. At the same time, when an oil-pressure cylinder 16 is operated, the cylinder 16 is turned around a support shaft 14 toward the direction of arrow A, and the part 10 is turned 90 deg. toward the side of an underground buried object 4. The ground below the object 4 is excavated by the chip 21 of the screw 20. The part 10 is again positioned vertically, the excavator 7 is moved to below the trench 5, and the part 10 is again positioned horizontally for excavation. The same operations are repeated to excavate a trench 26 below the object 4.
摘要翻译：目的：通过将挖掘机设置在地下埋藏物侧面形成的垂直沟槽中的方法，可以方便地挖掘沟槽，挖掘机朝向被埋物体的侧面转动，使其姿态水平状态下降。构成：当设置在垂直沟槽5中的挖掘机7的电动机13被操作时，驱动力传递到挖掘部分10，并且螺杆20围绕缸体19转动。同时，当油压气缸16被操作，气缸16绕着支撑轴14转向箭头A的方向，部分10转动90度。朝向地下埋藏物体4的侧面。物体4下面的地面由螺钉20的芯片21挖掘。部件10再次垂直定位，挖掘机7移动到沟槽5的下方，并且部件10 再次水平放置进行挖掘。重复相同的操作以挖掘物体4下方的沟槽26。

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