Dragline rotating frame structure

Details Dragline rotating frame structure Dragline rotating frame structure

1990-08-31

1991-10-22

Braun, Leslie A.

Traversing hoists

Having horizontally swinging boom or bridge

And means to swing boom horizontally

212245, 212253, B66C 2384

Patent

active

050587536

ABSTRACT:
A frame for an excavating machine having a ring gear wherein the frame is rotated with respect to the ring gear includes top and bottom plates. A plurality of compartments are circularly disposed within the frame and between the plates. A plurality of drive units are provided wherein each drive unit is mounted within one of the plurality of compartments below the top plate. The drive units extend below the bottom plate for driving engagement with the ring gear. A plurality of radially disposed bulkheads are located within the frame between the top and bottom plates and between the plurality of compartments.

REFERENCES:
patent: 4037894 (1977-07-01), Sankey
patent: 4307621 (1981-12-01), Merron
patent: 4329795 (1982-05-01), Kalve
patent: 4446977 (1984-05-01), McClain
patent: 4611440 (1986-09-01), Kalve
patent: 4769932 (1988-09-01), Kalve

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