Design and experiment on combined digging
shovel of Panax notoginseng harvester
1. College of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 2. Kunming Agricultural Mechanization Technology School, Kunming, Yunnan 650034, China)
Abstract：To solve the soil heap problem before digging shovel of Panax notoginseng mechanical harvesting,a new type of combined digging shovel with triangular plane shovel and soil crushing shovel was designed and investigated under the premise of not reducing harvest rate.The regression analysis and the response surface analysis were conducted by DesignExpert 8.0.6 Software.The structure and the optimum working parameters of the combined digging shovel were determined with shovel surface angle of 20°, buried gap angle of 12° and operation speed of 0.75 m·s-1. The results of field experiment show that the yield rate is 98.38％, and the correctness of regression model is verified to meet the operation requirements. The harvest effect comparison of the combined digging shovel with the common digging shovel shows that the combined digging shovel is more suitable for Panax notoginseng harvesting with better performance of harvest rate and problem solving of soil heap before digging shovel.
2018, Vol. 39 
