DRIVE DEVICE AND METHOD FOR DRIVING A DRILL ROD
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United States of America Patent
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-
N/A
Issued Date -
Nov 7, 2013
app pub date -
Nov 2, 2012
filing date -
Feb 28, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a drive device for driving a drill rod, which has an outer rod and an inner rod, with a first rotary drive unit, with which the outer rod can be driven in a rotating manner via an outer drive shaft, a second rotary drive unit, with which the inner rod can be driven in a rotating manner independently of the outer rod via an inner drive shaft, and a vibration unit for generating a vibration, which has a vibration element that can be driven in a vibrating manner. For transmission of the vibration to the outer drive shaft the vibration element is connected via a first transmission unit to the outer drive shaft and for transmission of the vibration to the inner drive shaft the vibration element is connected via a second transmission unit to the inner drive shaft.
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