Control arrangement for adjusting the position of a mineral winn

Details Control arrangement for adjusting the position of a mineral winn Control arrangement for adjusting the position of a mineral winn

1993-01-15

1994-08-16

Bagnell, David J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

299 43, E21C 2734, E21C 3512

Patent

active

053381033

ABSTRACT:
A mineral mining installation has a plough guided for movement along a scraper-chain conveyor. Roof supports are connected to the conveyor with the aid of shifting mechanisms which employ boom-type guide linkages designed to co-operate with a compact controller to adjust the tilt of the conveyor and the cutting horizon of the plough. The controller employs a plate-like guide block guided for up and down motion at the goaf side of the conveyor. An hydraulic piston and cylinder unit is disposed alongside the goal side of the conveyor and pivots a cranked lever to raise or lower the guide block. The guide block is coupled to a headpiece of an associated one of the boom linkages so that the motion of the guide block is transferred to the headpiece.

REFERENCES:
patent: 4462637 (1984-07-01), Rafael et al.
patent: 4571004 (1986-02-01), Braun et al.

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