Pulverizer upper gearbox bearing assembly
US7845587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C15/006
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pulverizer upper gearbox bearing assembly for a mill includes a bowl hub having a stepped hub defining a first bore to receive a shaft therethrough and a bowl extending radially outwardly therefrom defining a cavity between the stepped hub and bowl, the stepped hub having a first outside diameter extending to a second outside diameter, which in turn extends to a third outside diameter along a longitudinal axis of the first bore, the first outside diameter larger than the second outside diameter, which is larger than the third outside diameter; a thrust bearing disposed around the first outside diameter, the thrust bearing having an upper washer and a lower washer, the upper washer having an interference fit with the first outside diameter of the bowl hub; a roller bearing disposed around the third outside diameter, the roller bearing having a separable inner ring from an outer ring and a surrounding cage and roller assembly; a mill base hub extending into the cavity between the bowl and stepped hub, the mill base hub defining a first inside diameter extending to a second inside diameter, which in turn extends to a third inside diameter along a longitudinal axis of the first bore,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.