Rack drive for a drum cutter mining machine

Details Rack drive for a drum cutter mining machine Rack drive for a drum cutter mining machine

1978-03-24

1980-12-02

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

105 29R, E21C 2724, E21C 2736

Patent

active

042367581

ABSTRACT:
A hollow gearwheel has internal teeth that mesh directly or through an intermediate gear with the teeth of a drive gear of a machine drive on a drum cutter mining machine. External teeth on the hollow gearwheel mesh with the teeth of a rack extending over the distance traversed by the mining machine along the face of a longwall mine. A plate pivots about the rotational axis of the drive gear while the plate forms a closure to the side of the hollow gearwheel facing the mining machine. The plate carries a bearing support for the arbor shaft of the hollow gearwheel and forms a seal along the outer peripheral edge of the hollow gearwheel. A carrier includes a bearing to support the outer end of the arbor shaft. The carrier is moved along a recess in a housing for the hollow gearwheel to adjust, by pivotal positioning, the hollow gearwheel.

REFERENCES:
patent: 1027078 (1912-05-01), Sessions
patent: 4054321 (1977-10-01), Jarvis
patent: 4088370 (1978-05-01), Jarvis et al.

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