"Impeller bar installation and repositioning means for impact crushers having ""open"" type rotors"
US4925114A · kind A · utility
6Cited by
25References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/1938
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The impeller bars on an "open" type rotor of an impact crusher are clamped to each disc of the rotor by means of pairs of cooperating wedges. Each pair of wedges consists of a first wedge acting radially outwards of the rotor between the disc and the impeller bars and a second wedge acting axially of the rotor between the disc and the first wedge to drive the first wedge radially outwards. Means including a hook are also disclosed for lifting the impeller bars onto the rotor for initial installation as well as for later repositioning of the bars to compensate for wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.