Anti-spin mechanism for gyratory crusher
US5732896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Apr 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gyratory crusher includes an anti-spin mechanism which couples a lower end of the eccentric shaft of the crusher to the stationary frame of the crusher so as to prevent the eccentric shaft and associated crushing head from spinning when the crusher is not subject to a crushing load. The anti-spin mechanism includes 1) a gear train preferably formed from two sets of intermeshing gears, and 2) a torque limiter which is coupled to the gear train and which releases upon the imposition of a crushing load on the crusher so as to permit relatively slow rotation of the eccentric and crushing head counter to the direction of rotation of the main drive gear or bull gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.