Belt conveyor advancing and/or retreating return end
US5188208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1992 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Feb 10, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G41/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A belt conveyor advancing and/or retreating return end (1) is situated between a conveyor structure (2) and an excavation implement (3). Elements (1, 2 and 3) are to be located in an underground mine (12) for example. Return end (1) comprises a main frame (4) located above a crawler frame (5). Tracks (7) are mounted to the crawler frame (5) and are mounted in a parallel configuration to laterally opposed sides of the crawler frame (5). Slewing cylinders (10) are provided such that one end of each slewing cylinder (10) is connected to the main frame (4) whereas the other end is connected to the crawler frame (5). A number of levelling cylinders (11) effect vertical movement of crawler tracks (7) relative to crawler frame (5) which in turn effects vertical movement of the main frame (4). The configuratioin disclosed allows lateral alignment of the belt or rotation of the belt end in a nominally horizontal plane without the necessity of moving the belt return end either forward or rearward in the longitudinal direction of the belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.