腳踏式玉米脫粒機(jī)設(shè)計(jì)_畢業(yè)設(shè)計(jì)-展示頁(yè)
2024-09-07 21:14本頁(yè)面
【正文】 軸 漏斗 abstract Design maize sheller operation principle to utilize board tooth and thresh, assist to crowd to rub with the hands and realize threshing each other axle this time, the board tooth is installed on the cylinder, the main shaft of the cylinder links up with the runningboard through the crank connecting rod anization. Thresh, assist axle used for, support, live in maize to be excellent, benefit maize to be excellent in board tooth assisting axle roll and slip, thus realize threshing. This design focus is the design of a crank connecting rod anization, in order to reach the optimum operating mode。s burden, increase ines and have very great meanings. Keywords: Sheller Cylinder threshing Extracts seeds the auxiliary axis Funnel 腳踏式玉米脫粒機(jī) 1 目錄 引言 ..........................................................................................................................................................1 一 .玉米脫粒機(jī)的工作原理 ..............................................................................................................3 二 .玉米脫粒機(jī)驅(qū)動(dòng)機(jī)構(gòu)的型式與最優(yōu)工況的選擇 ....................................................................4 2． 1 驅(qū)動(dòng)機(jī)構(gòu)的作用與型式 ..................................................................................................4 2． 2 驅(qū)動(dòng)機(jī)構(gòu)最優(yōu)工況及曲柄最佳位值的選擇 ................................................................7 三 .玉米脫粒機(jī)驅(qū)動(dòng)機(jī)構(gòu)設(shè)計(jì)技術(shù)要求 .........................................................................................7 3． 1 驅(qū)動(dòng)機(jī)構(gòu)各構(gòu)件的相對(duì)位置必須滿(mǎn)足省力的要求 ....................................................7 3． 2 踏板行程 S 和擺角φ的設(shè)計(jì)要求 ....................................................................................7 3． 3 行程速比系數(shù) K和極位夾角θ .......................................................................................8 3． 4 機(jī)架高度 H .........................................................................................................................8 3． 5 踏板位置的確定 ................................................................................................................8 3． 6 小齒輪中心位置的確定 ....................................................................................................9 3． 7 搖桿、連桿和曲柄之間的相對(duì)位置確定 .......................................................................9 四．玉米脫粒機(jī)滾筒及脫粒部件的設(shè)計(jì)分析 ..............................................................................9 4． 1 玉米脫粒機(jī)的運(yùn)動(dòng)特點(diǎn) ....................................................................................................9 4． 2 玉米脫粒機(jī)的靜力平衡 ................................................................................................. 10 4． 3 滾筒動(dòng)力學(xué)分析 ..............................................................................................................11 脫粒滾筒轉(zhuǎn)速 ......................................................................................................................11 滾筒直徑及滾筒主軸軸徑和齒輪傳動(dòng)比的選擇 ........................................................ 12 4． 6 滾 筒板齒的相關(guān)設(shè)計(jì) ..................................................................................................... 12 玉米脫粒輔助軸的設(shè)計(jì) ..................................................................... 錯(cuò)誤 !未定義書(shū)簽。 排芯區(qū)的設(shè)計(jì) .........
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