Arrangement for controlled engagement of the tools of a mining m

Details Arrangement for controlled engagement of the tools of a mining m Arrangement for controlled engagement of the tools of a mining m

1979-12-03

1981-07-28

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter attached to endless chain or cable

299 43, E21C 2732

Patent

active

042807344

ABSTRACT:
An arrangement for controlled engagement of the tools of a coal planer, with a mine face comprises a scraper conveyor, provided on its front face directed toward the mine face with a guide rail guiding the coal planer for reciprocation along the mine face and a mechanism for tilting the conveyor and the coal planer about a substantially horizontal axis. The tilting mechanism is connected to the rear face of the conveyor and extends in its entirety rearwardly of the rear face of the latter. The tilting mechanism comprises a guide linkage pivotally connected at its front end to the rear face of the scraper conveyor while its rear end portion forms a housing for a fluid operated cylinder and piston unit, the piston rod of which is connected to a connecting rod guided by the guide linkage for movement in longitudinal direction and having an upwardly extending front section pivotally connected at its upper free end to the rear face of the scraper conveyor. The fluid operated cylinder-and-piston unit is thus considerably spaced from the scraper conveyor and the material transported thereby and especially coal dust raised during transport of the mined coal by the conveyor, whereby maintenance of the tilting unit is reduced. The guide linkage, the connecting rod and the tilting unit are all in close vicinity to the sole of the mine gallery to leave a considerable free space between the arrangement and the roof of the mine gallery.

REFERENCES:
patent: 3276819 (1966-10-01), Lobbe et al.
patent: 3765723 (1973-10-01), Lobbe et al.
patent: 3841706 (1974-10-01), Huttenbrauck et al.
patent: 3874734 (1975-04-01), Plevak et al.
patent: 3915500 (1975-10-01), Schlusener et al.
patent: 4200338 (1980-04-01), Beckmann

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