Gyratory crusher spider bushing
US12383908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Aug 5, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gyratory crusher spider bushing positions radially intermediate thereof a topshell spider and a crusher main shaft configured for gyroscopic precession within a crusher. The bushing includes a cylindrical main body having an inside surface and an outside surface centered around a longitudinal axis. A collar is arranged in connection to the top end of the bushing. The inside surface includes a fulcrum point having the smallest diameter of the bushing. An angle (α) defines the inside surface inclination above/below the fulcrum point in relation to the longitudinal axis. An inside length of the body is defined from the fulcrum point to the top end of the collar. A plurality of longitudinal cutouts are located at the inside of the body and are partly recessed in the inside surface. The cutouts have a length of which the lowermost part is located at or above the region of the fulcrum point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.