Studies On The Structure And Parameters Of Stripper Device Prior To Cutting

In view of the higher grain loss of the stripper device for Uxeshing prior to culling, some factors affecting the grain loss were studied eqxiimenlafly in this paper. First of all, the characteristic of airflow field in the conveying pusage was measured the coiElwOn nxhcates that the airflow field is less regular than that m air suction stripper device, and that curved shall guides airflow better aix! makes it distribiing uniformly Experhnents on nnpmvhrg fr stnzure mid shape of conveying passage show liut the different sbiflne shape am! position of the upper shell. m shield aix! slide board aix the relative position of the stripping it.or am! screw anger affect the grain loss to some extent Wli the upper shell arid rear board me curved, a he slide board tilt angle is 300 , Lhe distauce betveen snipping rotor aix! auger is 650mm, the grain loss is less. According to the e,q,eziments of single arid nuIti4actor rxk pammeter the higier the rotor?sspeedis,the lessfrgrainloss islxithegrahilosisllier, wlxnfrforwaidspeedrstoo higher or lower. The optimum xk pahanietas are as follow machine speed v,,=O.S6m/s rotor?s speed ;=96&min. auger?s speed n3Z7r/min die reasonable wvrk parameters as foilow- 2mIs. n,40(k*nin. ;=260r/min. High-speed Photography and Its analysis show if die grains (especially the I lull arts) move regularly, but die straw ax! chaff are disordere& High-speed Photography also describes die bump course, after the coflisian the grains will move downward at tilt angle. Lots of experiments demonstrate that the grain loss of the stripper device is higher than the suction device. Die research also provides some measures reducing the kss according to the expeimentshb,sukisbettetmwtbetestedaidverifiedinfie1d. Graduate student: Xu She lai Mjor Machinery Design and Theory Thtor Prof Jimig En charm...