摘 要 隨著農(nóng)業(yè)技術(shù)的發(fā)展，機(jī)械化生產(chǎn)顯得越來(lái)越重要。因?yàn)樵谶@個(gè)年代生產(chǎn) 效率對(duì)我們的日常生活尤為重要。每個(gè)人都需要食物。插秧機(jī)就在農(nóng)業(yè)生產(chǎn)中 扮演重要角色。作為插秧機(jī)中的一部分，變速器起到控制其運(yùn)動(dòng)規(guī)律的作用。 通過(guò)對(duì)市場(chǎng)現(xiàn)有插秧機(jī)變速箱的調(diào)查研究，我發(fā)現(xiàn)一些插秧機(jī)的變速箱在可靠 性方面欠佳，還有的在機(jī)器操縱方面顯得比較繁瑣。面對(duì)這種情況，我找到一 些可以解決這些問(wèn)題的措施。所以本篇論文主要針對(duì)插秧機(jī)的變速箱進(jìn)行設(shè)計(jì)。 論文包括插秧機(jī)變速箱的背景，變速箱的功能，以及變速箱的設(shè)計(jì)計(jì)算等方面。 設(shè)計(jì)方面主要包括傳動(dòng)系統(tǒng)的設(shè)計(jì)，操縱系統(tǒng)的設(shè)計(jì)以及箱體的設(shè)計(jì)。設(shè)計(jì)中 主要應(yīng)用 PRO/E5.0 和 CAD2008 工程制圖軟件。 關(guān)鍵詞：插秧機(jī)；變速箱；傳動(dòng)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(guó)內(nèi)外研究狀況和發(fā)展趨勢(shì) ................................................6 1.2.1 國(guó)內(nèi)插秧機(jī)研究狀況 ..................................................6 1.2.2 日本插秧機(jī)研究狀況 ..................................................7 1.3 高速插秧機(jī)的結(jié)構(gòu)組成 ....................................................7 1.4 高速插秧機(jī)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(jì)的主要內(nèi)容 .........................................................10 第二章 傳動(dòng)方案的確定 .......................................11 2.1 高速插秧機(jī)傳動(dòng)關(guān)系 .....................................................11 2.2 機(jī)械式變速器傳動(dòng)方案 ...................................................11 第三章 基本參數(shù)的確定與計(jì)算 .................................13 3.1 發(fā)動(dòng)機(jī)額定參數(shù) .........................................................13 3.2 傳動(dòng)比的確定 ...........................................................13 3.3 傳動(dòng)裝置運(yùn)動(dòng)、動(dòng)力參數(shù)運(yùn)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(jì)計(jì)算 .................................................14 3.4.1 設(shè)計(jì)計(jì)算低速級(jí)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(jì)算 .................................................19 第四章 軸的設(shè)計(jì)計(jì)算 .........................................20 4.1 輸入軸的設(shè)計(jì)計(jì)算 .......................................................20 4.1.1 估算軸的直徑 .......................................................20 4.1.2 軸的結(jié)構(gòu)設(shè)計(jì) .......................................................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(zhǎng)度的選取 .....................................................21 4.2 輸出軸的設(shè)計(jì)計(jì)算 .......................................................22 4.2.1 估算軸的直徑 .......................................................22 4.2.2 軸的結(jié)構(gòu)設(shè)計(jì) .......................................................22 4.2.3 具體長(zhǎng)度的選取 .....................................................23 4.3 惰輪軸的設(shè)計(jì)計(jì)算 .......................................................24 4.3.1 估算軸的直徑 .......................................................24 4.3.2 軸的結(jié)構(gòu)設(shè)計(jì) .......................................................24 4.3.3 具體長(zhǎng)度的選取 .....................................................25 4.4 輸出軸的強(qiáng)度校核及軸承壽命校核 .........................................25 4.4.1 按彎扭合成強(qiáng)度條件校核 .............................................25 4.4.2 對(duì)軸端軸承進(jìn)行壽命校核 .............................................26 4.5 惰輪軸的強(qiáng)度校核及軸承壽命校核 .........................................27 4.5.1 按彎扭合成強(qiáng)度條件校核 .............................................27 4.5.2 對(duì)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(jiǎn)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(jì) ...............................33 6.1 操縱系統(tǒng)設(shè)計(jì)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(shí)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