机械毕业设计-窄行机械式小麦精量播种机设计（全套CAD图纸）.pdf

?????????ъ???? CAD??? QQ 194535455 ????????????〇???????仈?ズ?????哜???〃?????щ????????????〦 2015?04?18??????????ъ???? CAD??? QQ 194535455 ズ?????哜???〃??????????哖??????????伏?????????伏????????????????儈??????享????о??????????????????哖????????????儈?哖??????≤?????????????哖??о???????哖?ょ?儈????価┑????哖???儈?????哖????????????ъ???????????????н????┑??哖?????????у????а???н???????????????10cm ????н???????а?????????а?????н??????????哖?????ф??а??????儈???????????й?哖???????仈??????????????哖10cm?????? ????哖10cm??????????????哖????????????10cm ???哖?????????ウ???????????????????????????????????????????????????????????????????о?????????????????????????傼????????????????????????????哖???????????????????????????????哖10cm ???????っ???傼??????????哖?????????????哖?????? ???φ?????哖?10cm?????????????????????ъ???? CAD??? QQ 194535455 ABSTRACT Wheat is one of the major staple food for our people. It has a great significance in the grain production. Our country has realized the sowing mechanized. To achieve the goal of high yield of wheat crop, it must pay great attention bine agricultural machinery and agriculture. The agronomic requirements of wheat crop all row spacing, planting distance and sowing depth all need to be accurate in order to sow the wheat reasonably, which will save seed, make full use of land, sunlight and wind. It is that row spacing decreases to 10cm and sowing is the quantity of 15cm spaces. The seeding method can make more uniform distribution of wheat and sow depth consistent. It can be reached the goal of high yield. Due to the uniform distribution of wheat, it is up to the ecological effect of water retention. In different regions,natural environment, soil conditions, wheat varieties and so on, the Structure of seeding machine is different. The subject design and manufacture of the 10cmrow seeder for wheat applied in Hebei Province. In the process of designing and manufacturing the 10cm row seeder for wheat, this paper investigated the existing wheat seeder, analyzed the 10cm row whe