Conveyor device for agricultural machinery and agricultural machinery comprising said device

Agricultural machinery for harvesting and/or moving agricultural products, comprising:

• a frame provided with rolling or sliding elements designed to enable the agricultural machinery to move in one direction of travel;
• a conveyor device comprising:
• a first axis including at least two first pulleys rotating coaxially around a first rotation axis and spaced apart along said first rotation axis by a first distance;
• a second axis including at least two second pulleys coaxially rotating around a second rotation axis and spaced apart along said second rotation axis by a second distance, wherein each of the at least two first pulleys is aligned with a corresponding one of the at least two second pulleys along a movement direction of the conveyor device;
• a conveyor belt extending between said first and second axis and wrapped around said at least two first pulleys and said at least two second pulleys;
• at least one pair of longitudinal guides extending along the movement direction and supporting a transport section of the conveyor belt during movement;
• wherein said conveyor belt comprises:
• a substantially flat base body made at least in part of rubberized cloth and having a first face, inner in use, and a second face, outer in use;
• said base body comprising a support central zone, extending along the movement direction and interposed between two traction lateral zones, wherein said lateral zones comprise at least one traction body made in one piece with a respective one of the lateral zones and comprise a plurality of teeth projecting from the first face and arranged in succession along the base body to engage one of the at least two first pulleys and a respective one of the at least two second pulleys, for moving the conveyor belt;
• a plurality of cross bars extending transversely to said movement direction between said lateral zones,
• wherein:
• the central zone of the base body of the conveyor belt has a first thickness “s1” and the lateral zones have a second thickness “s2”, which is greater than the first thickness “s1”;
• each of the lateral zones includes a resistant band, which is external and where the traction body is located, and a sliding band, which is internal and is slidingly joined to at least one of the longitudinal guides when in the transport section;
• the conveyor device joined to said frame and including an actuating device configured to rotate said first and/or said second axis.