Drive gears for rack-driven mining machine

Details Drive gears for rack-driven mining machine Drive gears for rack-driven mining machine

1977-12-22

1979-05-22

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

74462, 104165, 105 29R, E21C 2900

Patent

active

041555996

ABSTRACT:
Drive gears with unique teeth profiles drivingly couple the output shaft of a drive on a drum-cutter mining machine to a rack extending along the course of travel of the mining machine. A prime mover on the mining machine is coupled to a drive gearwheel having gear teeth with tooth flanks defined by segments of a hypocycloid. These gear teeth mesh with a rack drive gearwheel having gear teeth with tooth flanks defined by segments of an epicycloid. The gear teeth of the rack drive gearwheel have a slender profile to penetrate into the spaces between pins forming part of a guide rail rack.

REFERENCES:
patent: 2652785 (1953-09-01), Cox
patent: 4051492 (1977-09-01), Laskin et al.
patent: 4054321 (1977-10-01), Jarvis

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