DEVICE FOR TOOLS COOLING ESPECIALLY KNIVES OF UNDERCUTTING TOOL

1. Arrangement for cooling the cutter teeth of the cutting tool of a cutting machine and the breast and for precipitating dust, in particular of the cutting tool formed by at least one rotating cutter head (28) on the movable cutting arm of a cutting machine, wherein the cutter teeth are only tempor...

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Bibliographic Details
Main Authors SCHETINA,OTTO,AT, WRULICH,HERWIG,AT, ZITZ,ALFRED,AT
Format Patent
LanguageEnglish
Published 15.04.1988
Edition4
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
MINING OR QUARRYING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
SHAFTS
TUNNELS
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Summary:1. Arrangement for cooling the cutter teeth of the cutting tool of a cutting machine and the breast and for precipitating dust, in particular of the cutting tool formed by at least one rotating cutter head (28) on the movable cutting arm of a cutting machine, wherein the cutter teeth are only temporarily in engagement with the rock to be cut, and of the breast, by means of nozzles (22, 32) for the coolant disposed on the cutting tool and associated with individual cutter teeth, control means being provided that permit the supply of coolant to the nozzles only during the period of time at which the cutter teeth associated with the respective nozzles are in engagement with the rock, characterized in that as coolant water without admixture of air is used in a manner known per se and that the cutter tooth shank (4, 22) of the cutter tooth is axially slidably mounted in the tooth holder (2, 34) and resiliently supported against the cutting pressure, the supply of coolant being controlled by means of a valve (13, 31) acted upon through the displacement motion of the cutter tooth and housed in the tooth holder (2, 34).
Bibliography:Application Number: CS19790006987