| 摘要 |
PURPOSE: A roller position controller of a belt skew prevention device for a belt conveyor is provided to sense the skew of a conveyor belt transferred in the longitudinal direction and pull or push the belt to remove the skew. CONSTITUTION: A roller position controller of a belt skew prevention device for a belt conveyor comprises a pair of belt position adjustment rollers(1210) and a pair of holders(1240,1260). The holders have axial coupling elements(1242,1262) and hinge shafts(1241,1261) to be coupled to both ends of the belt position adjustment rollers. The hinge shaft of the left holder is inserted in a hinge section of a frame coupling plate, and the hinge shaft of the right holder is inserted and coupled to an arc slot(1251) of a guide plate. A bracket(1264) with a long axial hole(1264a) is formed on a side of the right holder and coupled with a pulling element(1265). The pulling element is coupled to a spiral shaft(1270) connected to the shaft of a drive motor(1280).
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