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Driving machine for drilling sections and tunnels - works according to back cut principle and has telescopic guides on rotating drill head for telescope arms fitted with cutting rollers
Driving machine for drilling sections and tunnels - works according to back cut principle and has telescopic guides on rotating drill head for telescope arms fitted with cutting rollers
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机译:钻探段和隧道的驱动机-根据反切原理工作,并且在旋转钻头上具有伸缩导轨,用于装有切辊的伸缩臂
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摘要
The telescopic guides (16), running parallel to each other, are arranged off centre on both sides of the rotary axis of the drill head (6). The telescope arms (15), on their parts carrying the cutting rollers (14) located outside the telescopic guides, are angled in the direction of the rotary axis and the face breast (13). The telescopic guides are arranged in a common cross plane of the drill head and are formed as telescope tube guides. ADVANTAGE - Is compact and simplified with the widening work being able to be effected at a tight distance behind the pre-borer.
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