Disc coupling
AssigneePSC Couplings, LLC
InventorsDavid William Olson, Matthew Joseph DeFord
Life of this patent
Estimating the term…
Abstract
A disc pack includes stacked disc plates defining a first side and second side of the disc pack. Bolt holes extend through the sides of the disc pack and define a bolt circle. Bushings extend through the bolt holes. Each bushing includes a head at a first end bearing against the first side of the disc pack and a second end that extends axially outside the bolt hole. A washer surrounds at least a portion of the second end and bears against the second side of the disc pack to hold the disc plates together. The disc pack is configured to increase from a first diameter defined by the bolt circle to a second diameter defined by the bolt circle that is at least 0.37% greater than the first diameter when the disc pack is pre-stretched.
Claims20
A disc pack, comprising:
- disc plates stacked together and defining a first side of the disc pack and a second side of the disc pack;
- bolt holes extending through the first side of the disc pack and the second side of the disc pack;
- a bolt circle defined by the bolt holes;
- bushings extending through the bolt holes wherein each bushing of the bushings passes through a corresponding bolt hole;
- each bushing of the bushings comprising:
- a head at a first end of the bushing bearing against the first side of the disc pack;
- a second end opposite the first end, the second end extending axially outside the bolt hole, the second end configured to be received at least partially into a locating pocket of a first flange or a second flange of a centerpiece;
- a body extending between the head and the second end;
- a washer press fit over the body and surrounding at least a portion of the second end and bearing against the second side of the disc pack such that the washer holds the disc plates together;
- wherein the bolt circle of the disc pack has a first diameter that is configured to increase to a second diameter when the disc pack is coupled either to the first flange or the second flange of the centerpiece;
- and
- wherein the second diameter is at least 0.37% greater than the first diameter.
Dependencies are inferred from the claim text.