STUDY AND ANALYSIS OF THE STRUCTURE OF THE WORKING TIME OF COMBINE HARVESTER FOR HARVESTING OF WHEAT

Abstract

The harvesting is one of the most difficult and responsible operations in the crops growing. It should be done in the short term, in order to prevent losses of production. This requires efficient use of the operating time of the combine harvesters. A study of the working time of a combine harvester was carried out throughout the whole period of wheat harvesting. Unloading of the hopper is carried out when the combine harvester is stationary. It was found that the time to prepare and finish work was 24.754% of the total working time. It includes time for maintenance of the combine harvester, the time for coupling and uncoupling of the combine header, the time for transport of the combine harvester to and from the field, and the time for moving inside the field. It was found that the time of harvesting is 53,158% of the working time. Non-productive time in the field represents 22,088% of the total working time. It includes the time for the movement of combine harvester to the place of unloading and vice versa, the time for waiting before unloading, the unloading time, the time for making turns, the time for updating of the technological settings, the time for searching and troubleshooting. For unloading of grain tank is lost 14.842% of working time. On the basis of the study, an algorithm for the operation of a combine harvester was made when unloading in stationary.