Process for percussive diamond-assisted drilling of hard rock

Weak impact pulses are transmitted via an eccentric shaft (7) to the working tools which are rotatable upon it. A separate drive is provided for the rotating working tools equipped with diamonds.The working tools are auto-rotatable on the eccentric shaft and the process operates without using coolin...

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Bibliographic Details
Main Authors ULRICH BE, KLAUS BE, PHILIP BE
Format Patent
LanguageEnglish
Published 06.01.1997
Edition6
Subjects
COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING
MACHINE TOOLS
MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
WORKING CEMENT, CLAY, OR STONE
WORKING STONE OR STONE-LIKE MATERIALS
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Summary:Weak impact pulses are transmitted via an eccentric shaft (7) to the working tools which are rotatable upon it. A separate drive is provided for the rotating working tools equipped with diamonds.The working tools are auto-rotatable on the eccentric shaft and the process operates without using cooling medium. Balancing of the system is carried out by adjusting a number of counterweights (8). The eccentric shaft rotates at high speed and the sleeve with the working tools rotates at low speed.
Bibliography:Application Number: ZA19950002748