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Application filed by Univ Donetsk Nat TechnicalfiledCriticalUniv Donetsk Nat Technical
Priority to UA2003109626ApriorityCriticalpatent/UA67566A/en
Publication of UA67566ApublicationCriticalpatent/UA67566A/en
Multiple drill head consists of housing, telescopic shafts located in the housing, basic spindle and working spindles with gear drives on each working shaft. Each working spindle has independent hydraulic drive of feeding units, the rod of said drive is rigidly connected with the working spindle. The cylinder of hydraulic drive is fixed on its bushing.
UA2003109626A2003-10-272003-10-27Multiple drill head
UA67566A
(en)