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參考文獻(xiàn)[1]邱宣懷主編 機(jī)械設(shè)計第四版 高等教育出版社1997[2]羅圣國等主編 機(jī)械設(shè)計課程設(shè)計指導(dǎo)書第二版 高等教育出版社1990 [3]羅圣國等 機(jī)械設(shè)計課程設(shè)計圖冊 第三版 高等教育出版社 1989[4]吳宗澤主編 機(jī)械設(shè)計課程設(shè)計手冊 高等教育出版社1999[5]許洪基主編 現(xiàn)代機(jī)械傳動手冊 機(jī)械工業(yè)出版社 1995[6]徐灝主編 機(jī)械設(shè)計手冊4 第二版 機(jī)械工業(yè)出版社 2000[7]吉林工業(yè)大學(xué)汽車教研室 汽車設(shè)計 機(jī)械工業(yè)出版社1981[8]龔微寒主編 汽車現(xiàn)代設(shè)計制造 人民交通出版社1999 [9] KACHMAN S D.Acternative Measures of Accuracy in Plant Spacing for Planters Using Single Seed Metering.Translation of the ASAE,1995,38(2): 371—375[10]Koning de et al., 1994 . Koning de, L. Speelman and . Vries de, Size grading of potatoes: development of a new characteristic parameter, Journal of Agricultural Engineering Research 1994,57: 119–128[11]Tao et al., 1995 Y. Tao, . Morrow, . Heinemann and . Ill, Fourier based separation technique for shape grading of potatoes using machine vision, Transactions of the ASAE 1995,38:949–Title the design of the threewheeled cart gearbox for the agriculture uses AbstractIn car spread move department, the gearbox is used to change to launch the machine spreads to drive a round ascends of turn the ju with turn soon, the purpose works within the scope of originally start, climb the po and make a turn, accelerates etc. Every kind of drive work things descend make car acquire lead the dint differently with speed, make launch the machine at the same time in the most beneficial work things .Primarily from bee to spread to move the organization soon with manipulate the organization constitute, in recent years, the gearbox designs to have the direction to manipulate the trend that direction development automatically. spare parts is synchronously the design choice of the machine.What this graduate design is an agriculture to bee with the threewheeled cart soon box, primarily is to according to the multifunction agriculture in a type 7Y975A2to bee with the threewheeled cart soon a construction to have known the parameter that make selection, pute the choice design the assemble