Device in rock drilling machines

Tool driving or impacting – Advance causing or controlling means – Tool advances relative to drive

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

173152, B23Q 500

Patent

active

046374779

ABSTRACT:
A device in rock drilling machines with a gripping device (24) which is rotatably mounted in a non-rotating drilling head (14) and intended to grip a drill string (21) for transferring rotational and axial movements to it. The gripping device is hydrostatically mounted (42, 43, 45-49) in the drilling head, whereby the pressure in a pressurized fluid between their coacting bearing surfaces (42, 43) automatically increases for increased loading pressure between these surfaces.

REFERENCES:
patent: 3165365 (1965-01-01), Wiedemann et al.
patent: 3565187 (1971-02-01), Jonsson
patent: 3827707 (1974-08-01), Sinner
patent: 4090743 (1978-05-01), Suzuki et al.
patent: 4262756 (1981-04-01), Blanz
patent: 4383771 (1983-05-01), Freytag et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Device in rock drilling machines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device in rock drilling machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device in rock drilling machines will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2130428

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.