DRIVE ROLLER FOR THE DRAPER CANVAS OF A CROP HEADER

摘要

According to the invention, a drive roller (30) for the draper canvas (32) for harvested material is provided, comprising: a body (301) of a roller (30) having an outer metal cylindrical surface (302) surrounding a roller rotation axis (303) and engaging a drive surface (304) of the canvas (32) wrapped there around; and multiple elements (305) with high wear resistance located on the roller surface (302) so that they protrude to a specified height (H) from the surface; wherein the protruding elements (305) create a profile on the outer metal surface (302) such that there are areas (310) of the outer metal surface (302) between the protruding elements (305) free of protruding elements; the height (H) of the elements (305) protruding from the metal surface (302) is less than 6 mm; the protruding elements (305) are made of a material with high wear resistance; wherein the material of the protruding elements (305) is clad as an additional material on the metal cylindrical surface (302) of the roller (30), and the protruding elements (305) have such height and width that they do not engage any recesses in the drive surface of the canvas (32). Further, a draper and a header containing such roller are provided.