Grain discharge transition belt limiting and tensioning mechanism of harvester

The utility model relates to a grain discharge transition belt limiting and tensioning mechanism of a harvester. The grain discharge transition belt limiting and tensioning mechanism comprises a tensioning wheel, a tensioning limiting supporting plate, a tensioning arm and an inhaul cable. The tensioning limiting supporting plate is connected with a grain discharge transmission case. The tensioning arm is movably connected with the tensioning limiting supporting plate. The tensioning limiting supporting plate comprises a limiting supporting plate body. An inhaul cable mounting rack is arranged on one side of the upper end of the limiting supporting plate body. A belt limiting assembly is arranged on the other side of the upper end of the limiting supporting plate body. The tensioning arm comprises a tensioning arm body, a large tensioning arm shaft and a small tensioning arm shaft, wherein the large tensioning arm shaft is connected to one side of the tensioning arm body, and the small tensioning arm shaft is connected to the other side of the tensioning arm body. The tensioning wheel is arranged on the large tensioning arm shaft. The inhaul cable comprises an inhaul cable core and an inhaul cable sleeve. One end of the inhaul cable core is connected with the small tensioning arm shaft, and the other end of the inhaul cable core is connected with a control handle. According to the grain discharge transition belt limiting and tensioning mechanism of the harvester, a limiting mechanism, a tensioning mechanism and the inhaul cable mounting rack are combined into a whole, and the grain discharge transition belt limiting and tensioning mechanism has the advantages of being simple in structure, low in cost, convenient to assemble and disassemble during maintenance and repair and the like.