摘 要 隨著農(nóng)業(yè)技術(shù)的發(fā)展，機械化生產(chǎn)顯得越來越重要。因為在這個年代生產(chǎn) 效率對我們的日常生活尤為重要。每個人都需要食物。插秧機就在農(nóng)業(yè)生產(chǎn)中 扮演重要角色。作為插秧機中的一部分，變速器起到控制其運動規(guī)律的作用。 通過對市場現(xiàn)有插秧機變速箱的調(diào)查研究，我發(fā)現(xiàn)一些插秧機的變速箱在可靠 性方面欠佳，還有的在機器操縱方面顯得比較繁瑣。面對這種情況，我找到一 些可以解決這些問題的措施。所以本篇論文主要針對插秧機的變速箱進(jìn)行設(shè)計。 論文包括插秧機變速箱的背景，變速箱的功能，以及變速箱的設(shè)計計算等方面。 設(shè)計方面主要包括傳動系統(tǒng)的設(shè)計，操縱系統(tǒng)的設(shè)計以及箱體的設(shè)計。設(shè)計中 主要應(yīng)用 PRO/E5.0 和 CAD2008 工程制圖軟件。 關(guān)鍵詞：插秧機；變速箱；傳動系統(tǒng)；操縱系統(tǒng) Abstract With the development of the argucultural technology, the mechanized production become more and more significant. Because the production efficiency is very vital for our daily life. Everybody needs food. And the rice transplanter play an important role in the argucultural production. As a part of rice transplanter, the gearbox control its form of exercise. According to the study of the market, I find some problem of prevelant gearbox of rice transplanter. Such as the control system is lack of reliability, the machine operation is not very convenient and so on. So face to the phynomenon, I take some measures to treat revelant problems. So this dissertation mainly introduct the design of gearbox. It include the background of gearbox of rice transplanter, the function of gearbox and the calculations about the design of gearbox of rice transplanter. And design of gearbox mainly include the design of transmission system, the design of control and the design of box. This design rely on PROEWildfire 5.0 and AutoCAD 2008. Key words: rice transplanter; gearbox; transmission system; control ststem 目 錄 摘 要 ABSTRACT 第一章 緒 論 ................................................6 1.1 引言 ....................................................................6 1.2 國內(nèi)外研究狀況和發(fā)展趨勢 ................................................6 1.2.1 國內(nèi)插秧機研究狀況 ..................................................6 1.2.2 日本插秧機研究狀況 ..................................................7 1.3 高速插秧機的結(jié)構(gòu)組成 ....................................................7 1.4 高速插秧機中常用的幾種變速方式 ..........................................9 1.5 課題研究目的及意義 .....................................................10 1.6 設(shè)計的主要內(nèi)容 .........................................................10 第二章 傳動方案的確定 .......................................11 2.1 高速插秧機傳動關(guān)系 .....................................................11 2.2 機械式變速器傳動方案 ...................................................11 第三章 基本參數(shù)的確定與計算 .................................13 3.1 發(fā)動機額定參數(shù) .........................................................13 3.2 傳動比的確定 ...........................................................13 3.3 傳動裝置運動、動力參數(shù)運算 .............................................13 3.3.1 各軸轉(zhuǎn)速 ...........................................................13 3.3.2 各軸功率 ...........................................................13 3.3.3 各軸轉(zhuǎn)矩 ...........................................................14 3.4 直齒圓柱齒輪的設(shè)計計算 .................................................14 3.4.1 設(shè)計計算低速級齒輪參數(shù) .............................................14 3.4.2 其他齒輪參數(shù) .......................................................18 3.5 直齒圓柱齒輪的受力計算 .................................................19 第四章 軸的設(shè)計計算 .........................................20 4.1 輸入軸的設(shè)計計算 .......................................................20 4.1.1 估算軸的直徑 .......................................................20 4.1.2 軸的結(jié)構(gòu)設(shè)計 .......................................................20 4.1.3 花鍵類型的選取 .....................................................21 4.1.4 軸承類型的選取 .....................................................21 4.1.5 具體長度的選取 .....................................................21 4.2 輸出軸的設(shè)計計算 .......................................................22 4.2.1 估算軸的直徑 .......................................................22 4.2.2 軸的結(jié)構(gòu)設(shè)計 .......................................................22 4.2.3 具體長度的選取 .....................................................23 4.3 惰輪軸的設(shè)計計算 .......................................................24 4.3.1 估算軸的直徑 .......................................................24 4.3.2 軸的結(jié)構(gòu)設(shè)計 .......................................................24 4.3.3 具體長度的選取 .....................................................25 4.4 輸出軸的強度校核及軸承壽命校核 .........................................25 4.4.1 按彎扭合成強度條件校核 .............................................25 4.4.2 對軸端軸承進(jìn)行壽命校核 .............................................26 4.5 惰輪軸的強度校核及軸承壽命校核 .........................................27 4.5.1 按彎扭合成強度條件校核 .............................................27 4.5.2 對軸端軸承進(jìn)行壽命校核 .............................................28 第五章 離合器的選用和裝配 ...................................30 5.1 離合器的選用 ...........................................................30 5.2 摩擦片式離合器簡介 .....................................................30 5.3 摩擦片式離合器原理 .....................................................30 5.5 摩擦片式離合器裝配主要結(jié)構(gòu) .............................................32 第六章 操縱系統(tǒng)及箱體相關(guān)設(shè)計 ...............................33 6.1 操縱系統(tǒng)設(shè)計主要內(nèi)容 ...................................................33 6.2 操縱系統(tǒng)相關(guān)裝配 .......................................................33 6.3 箱體的加工及實物圖 .....................................................33 第七章 總結(jié)與展望 ...........................................35 7.1 論文總結(jié) ...............................................................35 7.2 進(jìn)一步工作展望 .........................................................35 參考文獻(xiàn) ....................................................36 致謝 ........................................................38