Dual sensor chain break detector
US8061510B2 · kind B2 · utility
17Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2010 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Apr 26, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G43/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for detecting and adjusting the tension of a scraper chain. The device identifies broken chain as it leaves the return sprocket and enters the top race of the conveyor. When detected, the chain can be stopped automatically by the armored face conveyor control system, to avoid the potential for further damage, and warn the operators that repair of the chain is required. The device also has a conveyor with sliding frames at both ends to allow the conveyor ends to be independently adjusted to each end of the coal block, while maintaining good chain tension and control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.