Layout and engineering of a an overhead trolley conveyor is largely a matter of following established procedures and practices which have become standardized as the result of satisfactory performance over the years.
The overhead conveyor track is specially rolled I-beam section produced from C-1045 steel to the following specifications:
- .43 – .50 carbon
- .6 – .9 manganese
The specially rolled I-beam conveyor track is available in 3-inch, 4-inch, and 6-inch track size. The conveyor track is stocked in 20 ft. lengths and can be cut to any required length.
Due to high carbon content, our conveyor track assures longer wear life and better resistance against track flange peening than standard structural I-beam sections. Also, to assure a uniform cross section of the track, the track is rolled under controlled conditions. Standard mill tolerances, often the cause of misaligned joints and out of square and out of parallel conditions are eliminated.
Solution of Combined Vertical Curve Problems
- Refer to Table 1. Locate the colored bar indicating desired slope in the proper radius column.
- Project horizontally to either side of the table and determine drop “D”.
- Calculate “f” from Formula 1.
- Determine “e” from Table 2. Note that if “f” is not shown in the table, it can be broken up. For example, if “f” = 14′ – 6 3/8″ add “e” values for “F” = 10′ – 0 “, 4′ – 0″, 6″ and 3/8″.
- Locate “L” for proper slope and radius in Table 1.
- Calculate total length Le from Formula 2.
- Determine “g” and “A” as in steps 4 and 5.
- Calculate developed length of curve from Formula 3.
Note: Single bent rails are fabricated with a straight tangent section “T” on each end.
- Formula 1: f (Table 2) = DF -D (Table 1).
- Formula 2: Le = L (Table 1 ) = e (Table 2).
- Formula 3: Developed length of rail = 2A (Table 1) + g (Table 2)