The Experimental Study Of The Wheat Precision Metering Device

Wheat precision plant can make wheat seedling evenly, seedling together, seedling strengthen, and can economize seed, reduce cost, increase yield ,as a result wheat precision drill has become a kind of agriculture machine that peasants need urgently. Precision metering device is a pivotal part that development and research of precision drill. So the paper does sectional research work on wheat precision metering device, which main contents are as follows:1.The paper designs the structure form of corkscrew groove-wheel metering device, uses solidworks software building up the structure model of the corkscrew groove-wheel device, analyzes the process that metering device fills and discharges crop ,applies orthorhombic experiment analysis to the main structure parameter of the metering device , then defines the more excellent parameter of metering device .2. The paper designs the structure form of pneumatic metering device, carries on the theories analysis to the seed adsorbing process. The paper puts forward avoid jammed device, introduces its structure and work principle, then carries on experimental compare analysis. The paper confirms the more excellent parameter of metering device by experiment.3. The paper uses the method of value engineering project appraisement to compare corkscrew groove-wheel wheat precision drill and wheat pneumatic precision drill.