Cutting chain for mining machines

Details Cutting chain for mining machines Cutting chain for mining machines

1990-06-21

1991-07-16

Britts, Ramon S.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Endless-chain type head

299 84, 474156, E21C 2534

Patent

active

050319647

ABSTRACT:
An endless chain for carrying cutting elements for a mining machine comprises a plurality of pivotally interconnected link elements, some of which are constructed to mount outwardly projecting cutting tools. The link elements are pivotally interconnected so as to provide sprocket openings along the two outer edges of the cutting chain. A pair of axially spaced sprockets secured to a driving drum engage the sprocket openings provided along the two longitudinal edges of the cutting chain. The sprocket teeth are dimensioned to be of less peripheral width than the sprocket openings and the pitch of the sprocket openings slightly exceeds the pitch of the sprocket teeth, thus insuring that the driving force imparted to the cutting chain by the sprockets is imparted only by the two leading sprocket teeth as they approach their point of exit from the chain openings.

REFERENCES:
patent: 3679265 (1972-07-01), Krekeler
patent: 3787091 (1974-01-01), Paolini et al.
patent: 3788711 (1974-01-01), Krekeler
patent: 3802287 (1974-04-01), Graham
patent: 3968995 (1976-07-01), Arentzen
patent: 4181038 (1980-01-01), Shockley
patent: 4275929 (1981-06-01), Krekeler
patent: 4717206 (1988-01-01), Starwerf, Jr.

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