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Equipment Management Weekly Lesson (Belt Conveyor Roller Types 5: Working Principle of Reversible Self-aligning Rollers)

2025-07-21 09:15

Reversible self-aligning idler rollers are used on conveyor belts that operate in both directions. The structure of a traditional curved profile friction-type self-aligning idler roller is shown in the figure. It uses a certain amount of friction between the two curved rollers on the left and right and the fixed friction plates fixed on the idler roller to make the bracket rotate. When the belt deviates, the belt contacts the left or right curved roller, and a frictional force is generated through the curved roller to rotate the bracket by a certain angle to achieve self-alignment.

You are looking for the courseware from a few days ago. The following two types of idler rollers can also achieve the reversible self-aligning and anti-deviation function. 1. Reversible trough-shaped self-aligning idler roller with guide rollers This is an improvement on the basis of the guide roller type single-row automatic self-aligner. Its characteristic is that guide rollers are set on both sides, and the guide roller axis is perpendicular to the idler roller axis in the same plane. The thrust received from the belt deviation is completely used for correction, suitable for reversible conveyor belts;

2. Strong guide roller deviation correction with double rotating centers Device When the guide roller is placed on the idler roller axis, it also has a better deviation correction effect. The rotating centers of various deviation correctors should be well sealed, with waterproof and dustproof functions for easy water washing.