Study Of Cutting Mechanism On Self-propelled Row Independent Forage Harvester's Cutter Bar

With the fast development of our country's economy, the cow and sheep feeding industry is required to be improved, forage harvesting equipment is the key to the development, and many forage harvesters are needed in the market.The paper in brief introduced the development actuality, the significance of the study and the transmission device of the self-propelled forage row independent harvester. The mechanics characters of the corn were studied, and slip cutting for saving energy was analyzed. The rotary cutter with super disc knife was introduced, and the trapezoid knife and the zigzag knife were designed to conduct the perpendicular experiment. Based on dynamics analysis of the zigzag knife's slip cutting and the track of the knife, the rule of the slip cutting angle's variety rule during cutting was founded. The key parameters for check the cutting quality, and the key factors of the influence upon cutting quality of the self-propelled row independent forage harvester's cutter bar, were confirmed to carry through a perpendicular experiment. The mathematics model was established, the key factors influence upon the cutting quality was analyzed.Two main contents were included in this paper. First, the cutting mechanism of free cutting was analyzed in theory, the rotary cutter with super disc knife was designed. Second the mathematics model was established after the examination. According to regress examination, the relation between the examination parameters and the examination factors was founded. The measured examination results were satisfactory confirmed with the calculation. The mathematics model contributes an analytical method for further cutting performance improvement.