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IDLER ROLLER DEVICE FOR TROUGHED CONVEYOR BELTS

  • US 3,648,824 A
  • Filed: 09/04/1970
  • Issued: 03/14/1972
  • Est. Priority Date: 09/04/1970
  • Status: Expired due to Term
First Claim
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1. An idler roller device adapted to be supported by a primary conveyor support and to supportingly engage opposite upwardly inclined side portions of a troughed conveyor belt, comprising:

  • means, fixed to the primary conveyor support, including a pair of upwardly, outwardly and backwardly inclined support shafts each supported at one end from which the support shafts extend in substantially opposite directions to opposite upper ends of the support shafts for supporting a pair of rollers under and in supporting engagement with the said opposite upwardly inclined side portions of the belt and for rotation by the belt about axes and bearing surfaces of the support shafts inclined both upwardly adjacent the inclined side portions and backwardly from a direction of movement of the troughed conveyor belt and a vertical plane normal to the direction of movement; and

    a pair of idler rollers rotatably mounted on the upwardly and backwardly inclined support shafts, each roller having a center bearing hole into which one of the inclined support shafts extends, a single entrance into the center bearing hole, at one end of the roller, by which the roller is inserted over the upper end of one of tHe support shafts, and an end wall at an opposite end of the roller enclosing the upper end of one of the support shafts;

    whereby the rollers rotate freely about upwardly, outwardly and backwardly inclined axes, the belt rotates and contacts the rollers at an angle and thereby exerts a downward thrust to maintain the rollers on the support shaft, prevents the rollers from being displaced axially during the movement of the troughed conveyor belt and exposing the bearing surfaces of the shafts, and the rollers can be easily slipped on and off the bearing shafts for servicing.

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