Differences between Winged Self-Cleaning and Spiral Self-Cleaning PulleysBlog | December 13th, 2018
Like a computer printer, the pulleys and belts within a large-scale conveyor system accumulate grime. For small electronic devices, there’s a handy self-cleaning function. It removes dirt and keeps pages of cleanly rendered text churning free and easy. As for conveyor system self-cleaning mechanisms, they’re a little different. Starting with winged self-cleaning solutions, here’s a guide to the differences.
Winged Self-Cleaning Pulleys
The underside of a conveyor belt accumulates dirt. Left like this, the gathering filth could find its way inside the equipment’s bearing housings. From here, only the maintenance techs can resolve the issue. Even the merchandise, perhaps a processed load of food or pharmaceuticals, could end up contaminated by belt filth. By installing winged self-cleaning pulleys, non-continuous fins create contaminant collecting voids in the end-stage pulley section, so the dirt cannot find its way to the terminating end of a production run.
Spiral Self-Cleaning Pulleys
Unlike the solution described above, the architecture of a spiral-shaped pulley is more materially complex. There are still fins or wings installed, end-to-end along the length of the self-cleaning tube, but that cylinder is further covered in lengths of helically angled metal strips. They’re fitted at ninety-degrees to the fins so that the conveyor belt doesn’t experience any noise or performance hampering movement, which would occur if an overly flexible belt were to flit across a pulley that was loaded with numerous open voids. Still quite capable of collecting grime and waste material build-ups, the helical (spiral) strips add support to flexible conveyor belts.
Supplementary Self-Cleaning Outlines
Numerous hub and bushing systems are available when the two pulley forms are purchased. Interestingly, more profile altering features add selection volume to a self-cleaning pulley’s portfolio. As a variation on a theme, winged architectures can be built as light-duty or heavy-duty models, which add large diameter gussets to the pulley voids. Herringbone patterns and exotically angled fins optimize aggregate removal functionality, so quarry or mining material junk can be rapidly ejected from a high-volume mineral processing line.
That same architecture-altering principle applies to spiral self-cleaning pulleys. The wings are removed on some of them, then the entire cylinder assumes a helical form, with its threads sending excess material to one side of the pulley or the other. Finally, winged self-cleaners are built to remove large, abrasive masses of waste. The equipment they support doesn’t experience stress when a conveyor belt generates noise and uneven rolling movement. For spiral self-cleaning pulleys, these line variants handle finer, drier free-flowing loads. And, as implied by their design features, spiral pulleys are intended for use in conveyor systems that are interruption-sensitive.
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