Gyratory crusher
US8240587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2010 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gyratory crusher includes a crushing head, which is arranged rotatably on a substantially vertical shaft and on which a first crushing shell is mounted, and a frame, on which a second crushing shell is mounted, which second crushing shell, together with the first crushing shell, delimits a crushing gap. A supporting piston is arranged inside a cavity of the shaft, which supporting piston is displaceable in the vertical direction in order to adjust the width of the crushing gap. An eccentric is, by means of at least one radial bearing, arranged rotatably about the shaft. The gyratory crusher has an oil line, arranged in the cavity and extending through a piston plate included in the supporting piston, for supplying lubricating oil to a lubricating oil chamber configured at least partially in the cavity above the piston plate, the lubricating oil chamber being connected to the radial bearing by a duct arranged in the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.