| 摘要 |
A method for automatically addressing belt mis-tracking in a belt conveyor having a belt mounted on first and second pulleys, comprising: receiving a signal indicative of mis-tracking when an edge of the belt has contacted a contact sensor comprising first and second multi-stage switches; detecting the speed of the belt; and automatically adjusting an end of second pulley upon detection of mistracking, the rate of adjustment being related to the speed of the belt; receiving signals from the first and second multi-stage switches indicative of the degree to which the belt is mis-tracking in a first and second direction, respectively; defining a first degree of mis-tracking; defining a second degree of mis- tracking, the second degree being greater than the first degree; in instances of the first degree of mis-tracking, adjusting an end of the second pulley at a first speed; and in instances of the second degree of mis-tracking, adjusting the end of the second pulley at a second speed, the second speed being greater than the first speed. |
