Excavator for constructing underground continuous wall and under

Details Excavator for constructing underground continuous wall and under Excavator for constructing underground continuous wall and under

1992-07-06

1993-09-14

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405266, 405287, 4052871, 37357, 37464, 37347, E02D 518

Patent

active

052443159

ABSTRACT:
An excavator for constructing an underground continuous wall includes a traveling trolley movable on rails and having a sprocket in mesh with a rack extended parallelly to the rails and a hydraulic motor for driving the sprocket. The trolley further includes an upper frame arranged thereon and having a tiltable frame tiltable relative to the upper frame and a saddle provided on the tiltable frame slidable on the tiltable frame in directions substantially perpendicular to the rails. An extensible guide post is provided upward and downward movably relative to the tiltable frame. An endless chain extends around a chain driving wheel provided on the saddle and a chain sprocket provided at the lower end of the guide post, and a number of cutter bits and a number of agitator bars are alternately arranged on the endless chain to form an endless chain cutter. A chain driving device is provided for driving the endless chain.

REFERENCES:
patent: 4379658 (1983-04-01), Schmednecht
patent: 4858344 (1989-08-01), Cotsford
patent: 4861199 (1989-08-01), Hackmack
patent: 4909674 (1990-03-01), Konno et al.
patent: 5022792 (1991-06-01), Konno et al.
patent: 5056242 (1991-10-01), Miotti
patent: 5113609 (1992-05-01), Camilleri

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