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目 錄 摘要............................................................................................................................................1 1 前言......................................................................................................................................2 1.1 研究的目的和意義 ................................................................................................................................2 1.1.1 中國(guó)花生生產(chǎn)現(xiàn)狀........................................................................................................4 1.1.2 中國(guó)花生的種植方式....................................................................................................5 1.1.3 花生生產(chǎn)機(jī)械化現(xiàn)狀....................................................................................................6 1.2 研究目標(biāo)與內(nèi)容 .....................................................................................................................................7 2 振動(dòng)篩式花生收獲裝置的設(shè)計(jì)原理................................................................................8 2.1 設(shè)計(jì)依據(jù) ...................................................................................................................................................8 2.2 設(shè)計(jì)方案的選擇與分析 ......................................................................................................................9 2.3 總體設(shè)計(jì)簡(jiǎn)介 .......................................................................................................................................10 2.4 作業(yè)原理 .................................................................................................................................................11 3 花生收獲機(jī)功率計(jì)算..........................................................................................................11 4 結(jié)構(gòu)設(shè)計(jì) ....................................................................................................................................................13 4.1 挖掘鏟主要參數(shù)計(jì)算.......................................................................................................13 4.1.1 入土角 α 計(jì)算...............................................................................................................13 4.1.2 鏟面長(zhǎng)度 L 計(jì)算 ............................................................................................................14 4.1.3 鏟刃斜角 γ 計(jì)算...........................................................................................................15 4.1.4 鏟面寬度 B 計(jì)算 ............................................................................................................16 4.1.5 鏟面離地面高度距離 hα 計(jì)算 ......................................................................................16 4.2 帶輪及帶的主要參數(shù)確定................................................................................................16 4.3 平行連桿機(jī)構(gòu)主要參數(shù)及行走輪的設(shè)定........................................................................18 4.4 軸的校核............................................................................................................................19 5 總體裝配......................................................................................................................................................21 6 總結(jié) ...............................................................................................................................................................21 7 結(jié)束語(yǔ)................................................................................................................................22 參考文獻(xiàn)..................................................................................................................................22 致謝..........................................................................................................................................23