Importance

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Abstract

A swivel link, especially for use in rotatable interconnection of two relatively pivotable machine members (1) at the adjacent end portions. One (1) of the two members may be bifurcated to embrace the other member and formed with two aligned swivel link attachment holes (2). The swivel link comprises a bolt (3) and two expandable, internally conical sleeves (5). In the area of each cone sleeve (5), the bolt (3) has a correspondingly conical portion (3'). A coaxial threaded end trunnion (3') at each end of the bolt (3) mounts a tightening nut (4) adapted for axially directed displacement of the adjacent cone sleeve (5) into the space between the attachment hole wall (2) and the conical portion (3') of the bolt (3). To prevent the bolt (3) from skidding/rotating within the cone sleeve (5), causing wearing and/or loosening of the tightening nut (4) and the cone sleeve (5) on the bolt (3), the conical portion (3') of the bolt (3) exhibits at least one axially extending, plane surface portion (3a') which, in the circumferential direction, has a spherical conical bolt portion at either side. The cone sleeve (5) is internally provided with a corresponding, plane surface portion (5b', 5d', 5f') cooperating with the plane surface portion (3a') on the bolt (3).

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First Claim