Device in rock drilling machines

Details Device in rock drilling machines Device in rock drilling machines

1985-01-13

1987-01-20

Schran, Donald R.

Tool driving or impacting

Advance causing or controlling means

Tool advances relative to drive

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.

Affiliated with

Also associated with

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

Comments { 0 }

Profile ID: LFUS-PAI-O-2130428