Design and Test of the Scraper Peanut Shucking Machine for Breeding Plot
Aiming at the problems of small quantity,numerous varieties,different pod sizes,low effi-ciency,high damage rate and low threshing rate,a scraper peanut shucking machine for breeding plot was de-veloped.The whole machine is mainly composed of husking device,winnowing device,lifting device,etc.The parameter design of key components was optimized,combined with the collision model between the plate and the peanut pod,the collision mechanical characteristics of the peanut pod were analyzed by Hertzian theory,and the edge of the plate was optimized to a rounded corner with a radius of 3 mm was obtained by simulation test.The single factor test of feeding amount,rotation speed of roller,and minimum husking gap was opti-mized with the large,medium,and small size of breeding peanut varieties of QinghuaY14,Huayu11 and Baisha as trial materials.Taking the removal rate and damage rate as test indexes,regression orthogonal com-bination test was carried out to optimize the optimal parameter combination.The experiment result showed:the feeding amounts of the large,medium and small size peanut pods were 178,173,and 169 g/s,respec-tively;the rotation speeds of the hulling roller for the large,medium and small size peanut pods were 356,347,and 375 r/min,respectively;the minimum hulling gaps for the large,medium and small size peanut pods were 23,22,and 22 mm,respectively;and the maximum threshing rate was 95.43％,93.36％and 93.36％,respectively.The damaging rates were 5.48％,5.79％and 5.35％,respectively,according to the optimal parameters,and the steps such as adjusting the feeding amount and replacing the concave sieve meet the adaptability of multi-species.
万方数据
维普
