Multi-shaft kneading auger system

Details Multi-shaft kneading auger system Multi-shaft kneading auger system

1989-10-23

1991-09-24

Taylor, Dennis L.

Excavating

Peat excavators

37189, 405267, 175 55, 175171, E02F 504

Patent

active

050503200

ABSTRACT:
The present invention relates to a multi-shaft kneading auger system having a plurality of kneading shafts or rotating shafts used to form a continuous wall in the ground. Grouting blades driven by chains, are positioned near the lower ends of the kneading shafts. A grouting edge of the blade forms a predetermined angle with the surface of the kneading shafts. Also, a scraping apparatus is formed in a part of the rotating shafts. The scraping apparatus comprises a supporting member laterally supported in the part of the rotating shafts, plain blades vertically movably supported on the supporting member and substantially located on common tangential lines of the rotational surfaces of the grouting blades, a coupling member including rollers and laterally coupling the plain blades, and cams provided in the part of the rotating shafts and adapted to engage with the rollers. Thus, a unit of the continuous wall, having a rectilinear central portion and semicircular end portions, can be dug and grouted without losing linearity of the rectilinear portion.

REFERENCES:
patent: 2553541 (1951-05-01), Bodine, Jr.
patent: 3969902 (1976-07-01), Ichise et al.
patent: 4148367 (1979-04-01), Reich
patent: 4886400 (1989-12-01), Taki et al.

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