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As we know ,The shape of the rotary tiller blade ,Parameter and materials directly influences the Mechanical property of the rotary blade and then influence the rotary cultivator’s work efficiency And energy consumption[1] .Based on compared with china and foreign countries’ rotary tillage cutter Arrangement and analysis of advantages and disadvantages ,Slightly improved the structure of the Existing rotary tillage blade in the laboratory ,Analyzed the force of rotary tillage blade during the Working process ,Simulated the real working condition and make the load to the rotary blade then Analyzed the stress-strain from the rotary blade’s surface .Based on the collected data we can give Some advice to the designer like what we should focus on addition and consideration when we need To design rotary blade .Which provided the theoretical basis to the rotary blade structural Optimization in the future.

The Improvement of the Rotary Tillers’ Blade Design and Analysis