Apparatus to mechanically stress a bolt-type fastener
OwnerRolf Steinbockinventor
Life of this patent
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Abstract
A plurality of jack bolts are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener. The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt or the head portion of a bolt. The jack bolts can be arranged in a flange on an end of the tension rod to stress arbors against opposite sides of a roll sleeve to form a roll assembly for use in a rolling mill.
Claims18
A fastener apparatus to compress a support member against a first member, said apparatus including an elongated shank part extending from said first member and passed freely through an enlarged opening in said support member, an anchor flange connected to one end portion of said elongated shank part for support by said first member, a stress generating flange connected to an opposite end portion of said elongated shank part for exerting a compressive force on said support member, said stress generating flange having a plurality of holes at spaced-apart locations about an outer peripheral part thereof to overlie said support member, and a plurality of jack bolts threadedly engaged with said holes to separately receive a torque, the jack bolts having end parts extending from said holes to stress said elongated shank part extending between said anchor flange and said stress generating flange through torquing said jack bolts for applying a compressive reaction force between said support member and said first member.
Apparatus to compressively support a roll sleeve between arbors for forming a roll assembly, the combination therewith of an elongated shank part secured to one of said arbors to extend freely through an enlarged opening in said roll sleeve and through an enlarged opening in the other arbor, said elongated shank being spaced by an annular gap from said roll sleeve, a stress generating flange secured to an end portion of said elongated shank part extending from said other arbor, said stress generating flange having a plurality of holes at spaced-apart locations about an outer peripheral part thereof overlying the said other arbor, and a plurality of jack bolts threadedly engaged with said holes to separately receive the torque, the jack bolts having end parts extending from said holes against said outer shank part for applying a compressive reaction force on said roll sleeve by said arbors through torquing of said jack bolts.
Dependencies are inferred from the claim text.