摘 要收割機(jī)的發(fā)展方向?qū)⑹窍蚋呖萍蓟较虬l(fā)展，制造出適用性強(qiáng)的收割機(jī)很有發(fā)展市場，對不同地區(qū)開發(fā)出不同的收割機(jī)是很有發(fā)展前途的。由此，相應(yīng)的制造出高性能的水稻收割機(jī)是國外收獲機(jī)的發(fā)展概況。該水稻水稻收割機(jī)可一次性完成收割、脫粒、分離和裝袋作業(yè)。該機(jī)體積小、重量輕，操作靈活，通過性與適應(yīng)性好，較好地解決了大、中型收割機(jī)在丘陵、山區(qū)和水田難以收割的難題。關(guān)鍵詞：水稻脫粒裝置；脫粒； 改進(jìn)設(shè)計(jì)AbstractThe development direction of harvester will be to high-tech direction, making out the applicability of harvester is the development of the market, is very promising for different regions developed different harvester. Thus, the corresponding manufacturing combine high performance is the development of foreign harvester. The rice combine harvester can complete harvesting, threshing, separation and bagging operations at one time. The machine has the advantages of small volume, light weight, flexible operation, through and good adaptability, can better solve the problem of big, medium-sized harvester to harvest in the hilly, mountainous and paddy field.Key Words: rice thresher threshing; improved design;結(jié)論目 錄摘 要 .......................................................................................................................................IIIAbstract.....................................................................................................................................IV目 錄 ........................................................................................................................................V第 1 章 緒論...............................................................................................................................1第 2 章 總體方案確定...............................................................................................................22.1 脫粒裝置工作原理 .....................................................................................................22.2 水稻水稻收割機(jī)總體設(shè)計(jì) ............................................................................................32.2.1 水稻收割機(jī)的類型定位 ......................................................................................32.2.2 水稻收割機(jī)的整機(jī)結(jié)構(gòu)及選擇 .........................................................................32.2.3 水稻水稻收割機(jī)的工作流程 .............................................................................3第 3 章 脫粒裝置設(shè)計(jì)...............................................................................................................43.1 脫粒原理 .....................................................................................................................43.2 脫粒裝置類型選擇 .....................................................................................................4第 4 章 動(dòng)力的選擇...................................................................................................................64.1 整機(jī)消耗的功率計(jì)算 .................................................................................................64.1.1 脫粒裝置的功率消耗的計(jì)算 ...........................................................................64.1.2 清選裝置的功率消耗的計(jì)算 ...........................................................................64.2 柴油機(jī)的選擇 .............................................................................................................7第 5 章 傳動(dòng)裝置設(shè)計(jì).............................................................................................................85.1 傳動(dòng)路線 .....................................................................................................................85.2 確定傳動(dòng)裝置的傳動(dòng)比 .............................................................................................85.3 傳動(dòng)裝置動(dòng)力參數(shù)的計(jì)算 .........................................................................................85.4 皮帶輪的設(shè)計(jì)與計(jì)算 .................................................................................................95.5 驗(yàn)算小帶輪的包角 ...................................................................................................105.6 確定 V 帶根數(shù) ..........................................................................................................105.7 單根 V 帶預(yù)緊力的計(jì)算 ..........................................................................................10致謝5.8 計(jì)算壓軸力 ...............................................................................................................11第 6 章 齒輪的設(shè)計(jì)與計(jì)算.....................................................................................................126.1 材料的選擇及許用應(yīng)力的確定 ...............................................................................126.2 按輪齒接觸強(qiáng)度的計(jì)算 ...........................................................................................126.3 按齒根彎曲強(qiáng)度設(shè)計(jì) ...............................................................................................13第 7 章 軸的設(shè)計(jì)與計(jì)算.........................................................................................................157.1 軸的材料選擇 ...........................................................................................................157.2 軸的最小直徑確定 ...................................................................................................157.3 軸的結(jié)構(gòu)設(shè)計(jì) ...........................................................................................................157.4 軸的校核 ...................................................................................................................16第 8 章 鍵連接選擇.................................................................................................................19第 9 章 滾動(dòng)軸承選用...........................................................................................................209.1 滾動(dòng)軸承校核 .............................................................................................................209.2 脫粒滾筒轉(zhuǎn)速計(jì)算 ...................................................................................................219.3 滾筒直徑計(jì)算 ...........................................................................................................219.4 脫粒滾筒長度確定 .....................................................................................................22第 10 章 脫粒裝置其他部分設(shè)計(jì)...........................................................................................2310.1 滾筒脫粒齒設(shè)計(jì) .......................................................................................................2310.1.1 弓齒形狀選擇 ...............................................................................................2310.1.2 弓齒的排列 ...................................................................................................2310.1.3 相關(guān)參數(shù)的計(jì)算 ...........................................................................................2310.2 凹板的設(shè)計(jì) ................................................................................................................2410.2.1 凹板類型的確定 ...........................................................................................2410.2.2 凹板直徑的確定 ...........................................................................................2410.2.3 凹板與滾筒之間間隙的確定 .......................................................................25結(jié)論...........................................................................................................................................26參考文獻(xiàn)...................................................................................................................................27致 謝.......................................................................................................................................28