| Organic fertilizer in China is very rich in resources.However,there are many areas in our country still sowing fertilizer manually.This method reduce the farmers’ enthusiasm for organic fertilizer because of its high labor intensity, low efficiency, poor working environment and poor uniformity. Considering about the current situation of research on organic fertilizer machinery in China and the requirement of agricultural development,it’s significant to develop new manure spreaders with high application value,which should suit to China’s actual conditions.On the basis of the characteristics and technical indexes of organic fertilizer, combined with the domestic and foreign research present situation of manure spreader and manure spreader agronomic requirements,it put forward the design requirements of manure spreader.Then on the base of these, the whole structure is determined,including:chassis, fertilizer box, hydraulic drive system, transmission device, vertical throwing device and other components. In order to achieve stable transmission and transmission function, the conveying device adopts the hydraulic drive mode. Essentially, OMP315 hydraulic motor transfer the hydraulic power to the small chain wheel,and then through the chain transmission reducer,it drives the transmission shaft to complete the scraper conveyer. By calculating the torque required to throw the spiral, select the type of bevel gear transmission. The process of material throwing is simulated by using EDEM, focusing on spreading uniformity. And then,Optimizing the structure on the basis of simulation.Afrer trial-manufacturing the equipment, the performance and the technical parameters of the test is achieved. When the moisture content of the material is between 20% and 45%, uniform fertilizing coefficient of variation is 31.4%, less than 40%, in line with the design requirements. When the moisture content of test material is 22.8%, the work is about 3.6 m; when the moisture content of test material is 42.8%, the working width can reach 5.4m. |