【正文】 第 i 頁 玉米秸稈生物燃料機械壓力機設計 摘要 本文 主 要涉及玉米秸稈的轉化利用，通過分析國內外目前對這一課題的研究狀況 ，比較玉米秸稈轉化為能源的各種途徑方法，及其 前景和目前投入生產的主要瓶頸，進而 結合本專業(yè) 所學知識，設計一臺機械壓力機，以期完成玉米秸稈的能源化利用。 曲柄壓力機是以曲柄傳動的鍛壓機械，適用于板料的沖孔、落料 、 彎曲、線拉伸及成型等工作。 若裝上自動送料機構，則可以推行半自動沖壓工作。此次設計包括傳動方案的 確定，壓力機主要尺寸參數(shù)的確定，電動機的選擇以及各主要零部件的 設計計算。 最后，對成型所用模具的設 計進行了簡單介紹，并給出成型產品的尺寸參數(shù)。 [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 國內能源植物的利用狀況 ........................................................................................................................ 2 農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 .............................