Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Cleansing fluid passage
Patent
1988-01-21
1989-06-06
Dang, Hoang C.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Cleansing fluid passage
299 17, 299 45, E21C 3522, E21C 3520
Patent
active
048366137
ABSTRACT:
An integrated cutterhead for water jet assisted cutting which can be retrofitted to an existing machine by replacing its cutterhead. The pressure of the water supplied is intensified inside the cutterhead itself up to the level required for jet assist cutting by an even number of independent cylinders mounted inside the rotating drum, parallel to its axis. Each cylinder is afferent to one sector of the cutterhead. A stationary cam controlling the cylinders stroke can be adjustably rotated to adapt the distribution of high pressure water to the direction of the cutting operations. The cam is designed preferably as to make the water pressure of the jet correspond to the cutting depth of the cutting tool. This arrangement limits the high pressure water area to the drum of the cutterhead and does not require high pressure valves and distributors.
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Dang Hoang C.
Ruano William J.
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