Lower and crawler frame construction for crawler propelled machi

Details Lower and crawler frame construction for crawler propelled machi Lower and crawler frame construction for crawler propelled machi

1979-01-24

1980-11-04

Sheridan, Robert G.

Material or article handling

Vertically swinging load support

Shovel or fork type

212253, 212247, 280781, B66C 2384, E02F 332

Patent

active

042316995

ABSTRACT:
A lower works construction for a machine such as a large mining shovel or dragline having a center journal and an upper frame rotatable about a vertical axis of its center journal generally consisting of a lower frame section having a housing for the center journal, a plurality of leg sections mounted on the lower frame section and projecting laterally therefrom and a pair of propelling unit support frame sections, the lower frame section having a plurality of radially projecting bulkheads emanating from the center journal housing, the leg sections having laterally projecting bulkheads disposed in registry with the radially projecting bulkheads of the lower frame section and the support frame sections having laterally projecting bulkheads disposed in registry with the laterally projecting bulkheads of the leg sections whereby vertical and radial loads applied to the upper frame and imposed on the lower frame section will be transferred through the lower frame section to the support frame sections along the bulkheads of the lower frame and leg sections.

REFERENCES:
patent: 1629890 (1927-05-01), Ronk
patent: 2134866 (1938-11-01), Esters
patent: 2144760 (1939-01-01), Harnischfeger
patent: 2739716 (1956-03-01), Poulter
patent: 4037894 (1977-07-01), Sankey

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