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Rollers and roller carriage
To support a belt of the conveyor roller carriages are installed for a working and non-working branches. Supporting roller carriages for a working branch can be straight and channeled, and for return run of conveyer belt – only straight. Channeled roller carriages are made with inclination from 20 to 45 degrees depending on sectional plane of the freight flow on a belt and speed of its movement. Such roller carriages consist of 2 or 3 rollers, sometimes from five rollers when the belt is 2000 mm or more. Rollers are made from pipes of different diameter (see the table) and are installed on rolling-contact bearing, which forced on a motionless axis. The bearing case is made of cast iron, steel, ceramic metal or textolite. Bearings are protected from the external environment by sealing. Axes of bearings are fixed in arms which fasten to the frame of the conveyor line with welding, by bolts or demountable clamps. On a line roller carriages are placed with step 1 … 1,5 m, in places of loading – 0,4 … 0,5 m. On non-working branches the step of rollers makes 1,5 … 3 m depending on weight of running meter of the belt. |
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