Hydraulic-mechanical coal mining combine

Details Hydraulic-mechanical coal mining combine Hydraulic-mechanical coal mining combine

1975-12-08

1976-12-07

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Rotary cutter head with advance direction coincident or...

299 17, 299 75, E21C 2560

Patent

active

039959082

ABSTRACT:
The coal mining combine has a crawler carriage with a driving mechanism supporting a bed plate with a turntable on which an arrow-like actuator with a motor for rotating it and a bit are hinged. The hollow body of the actuator contains a built-in monitor. Hydraulic cylinders which are used for moving the actuator and the monitor's barrel are provided. Manifolds are used for supplying water to the monitor and to the actuator. In accordance with the invention, a channel is made in the supporting bed plate. This channel is a hydraulic shock acceleration tubing whose sections are located one above another in at least two rows. A pneumohydraulic accumulator communicating with the water supply source is connected to the channel's inlet, while an oscillator, included in the network for supplying water to the monitor, is connected to the channel's outlet.

REFERENCES:
patent: 3809318 (1974-05-01), Yamamoto
patent: 3813126 (1974-05-01), Rogne et al.

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