Dragline walking mechanism with improved planetary transmission

Details Dragline walking mechanism with improved planetary transmission Dragline walking mechanism with improved planetary transmission

1998-04-22

2000-05-30

Novosad, Christopher J.

Excavating

Cable-operated

Boom-type

475331, E02F 348

Patent

active

060677341

ABSTRACT:
A dragline comprising a main housing, a moving mechanism for moving the main housing over the ground, and a planetary transmission driving the moving mechanism, the planetary transmission including a transmission housing, a sun gear, a ring gear and planet gears centered on a center axis, the planet gears meshing with the ring gear and the sun gear so that the planet gears rotate about the center axis, the planet gears drivingly connected to a carrier, the carrier including a low-friction coating on a carrier annular surface and a carrier cylindrical surface, the low-friction coating reducing friction between the carrier and the transmission housing.

REFERENCES:
patent: 5600905 (1997-02-01), Kallenberger

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