Apparatus for prestressing casing bolts for steam and gas turbin

Details Apparatus for prestressing casing bolts for steam and gas turbin Apparatus for prestressing casing bolts for steam and gas turbin

1994-01-27

1995-02-21

Rosenbaum, Mark

Tools

Wrench, screwdriver, or driver therefor

Machine

254 29A, B25B 2902

Patent

active

053905695

ABSTRACT:
A method for prestressing bolts arranged in places where lateral accessibility is reduced, particularly casing bolts for turbines, comprises the mounting of a bridge element (41) on the end faces of the threaded ends of support bolts (21, 23) positioned at either side of the bolt (22) selected for prestressing, and prestressing of the bolt (22) by means of hydraulic stressing means (42, 45) arranged at the bridge element (41). Also disclosed is an apparatus for carrying out the method according to the invention, the apparatus comprising a bridge element (41), a pulling sleeve (42) with hydraulic drive (45) arranged on the bridge element, and means for generation of hydraulic pressure. (FIG. 2 )

REFERENCES:
patent: 4224843 (1980-09-01), Heiermann et al.
patent: 4246810 (1981-01-01), Keske
patent: 4268011 (1981-05-01), Randall
patent: 4659065 (1987-04-01), Simms

Affiliated with

Also associated with

Rating

Apparatus for prestressing casing bolts for steam and gas turbin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for prestressing casing bolts for steam and gas turbin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for prestressing casing bolts for steam and gas turbin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1923175