【正文】 可開發(fā)利用的煤和石油等化石能源將分別在 200年和30～ 40年以內(nèi)耗竭 ， 而天然氣按儲采比也只能用 60年 。 （ 3） 存在于自然現(xiàn)象，被人們開發(fā)的可利用能源，如太陽能、風能、潮汐等。 [關鍵詞 ]： 玉米秸稈；能源；曲柄壓力機； 第 ii 頁 Abstract This text is mainly about the utilization of corn straw, and through the analysis of domestic and foreign research on this topic and the parison of their prospects and the main bottleneck in practice, a mechanical press is designed by using our professional knowledge, in order to make the corn straw into energy. Crank press is a metal forming machinery which is driven by crank, and it applies to sheetmetal punching, blanking, blending, drawing, metal forming etc. If crank press is equipped with automatic feed mechanism, it can implement semiautomatic punching. This article describes the determination of transmission scheme and the main dimensions in the press, the motor selection and the design and calculation of main ponents. At the end of this text, the design of forming die is introduced briefly, then the dimension on the production is listed. Keywords： corn straw, energy ,crank press 目錄 摘要 ..................................................................................................................... I ABSTRACT ........................................................................................................ II 目錄 .................................................................................................................... 1 1. 緒論 ............................................................................................................. 1 自然界能源存在的形式種類及轉化利用狀況 ............................................................................................... 1 自然界能源存在的形式 ............................................................................................................................ 1 自然能源的開發(fā)利用狀況 ........................................................................................................................ 1 國內(nèi)外能源植物的開發(fā)利用 ............................................................................................................................ 1 國外能源植物的利用狀況 ........................................................................................................................ 1 國內(nèi)能源植物的利用狀況 ........................................................................................................................ 2 農(nóng)作物秸稈的利用方法 .................................................................................................................................... 3 生物質固化成型燃料 ......................................................................................................................................... 3 生物質固化成型燃料的特點 .................................................................................................................... 3 生物秸稈固化燃料使用設備及發(fā)展前景 ............................................................................................... 4 我國秸稈能源化利用瓶頸及原因 .................................................................................................................... 4 2. 曲柄壓力機的設計計算 .................................................................................. 5 曲柄壓力機的工作原理及主要參數(shù) ............................................................................................................... 5 曲柄壓力機的構成 .................................................................................................................................... 5 曲柄壓力機工作原理 ................................................................................................................................ 5 曲柄壓力機的主要技術參數(shù) .................................................................................................................... 5 設計方案的確定 ................................................................................................................................................. 5 傳動級數(shù)和各速 比的分配 ........................................................................................................................ 5 總體設計方案的確定 ................................................................................................................................ 6 偏置曲柄滑塊機構的尺寸參數(shù)確定及運動分析 ........................................................................................... 6 壓力機傳動 裝置的總體設計 ............................................................................................................................ 7 確定傳動裝置的總傳動比和分配傳動比 ............................................................................................... 7 傳動裝置的運動和動力參數(shù)的計算 ....................................................................................................... 8 壓力機主要零部件的設計計算 ........................................................................................................................ 9 V帶輪的設計 .............................................................................................................................................. 9 齒輪的設計計算 ...................................................................................................................................... 11 曲軸尺寸 參數(shù)的確定及強度校核 .........................................................................................................16 傳動軸的設計計算 ..................................................................................................................................18 3. 成型模具設計簡介 ........................................................................................ 21 模具主要尺寸設計 ...........................................................................................................................................21 產(chǎn)品的成型參數(shù) ...............................................................................................