【正文】 ifting mechanism, auxiliary lifting mechanism, the main lifting mechanism for drum group and a pulley block, auxiliary lifting mechanism of reel group and pulley, pulley shaft, drum, and other design. The process of the design was accessed to a large number of domestic and international relevant information。 本課題主要對(duì) 50t/20t 雙梁橋式起重機(jī)的主起升機(jī)構(gòu)、副起升機(jī)構(gòu)、 主起升機(jī)構(gòu)卷筒組及滑輪組、副起升機(jī)構(gòu)卷筒組及滑輪組、卷筒、滑輪 、軸等 進(jìn)行 設(shè)計(jì)。接著對(duì)橋式起重機(jī)的特點(diǎn)、分類以及構(gòu)造進(jìn)行了詳細(xì)的敘述。 并且對(duì)所設(shè)計(jì)的起升機(jī)構(gòu)進(jìn)行了三維建模和有限元分析。 設(shè)計(jì)過程中查閱了大量的國(guó)內(nèi)外的相關(guān)資料，所做的設(shè)計(jì)運(yùn)用了大量的專業(yè)課程 知識(shí)。 the design used a large number of professional courses. Firstly, by determining the transmission scheme, selecting the pulley and hook group, choosing the right wire rope pulley, calculating the main dimensions, determining the reel size and checking its strength, choosing the appropriate motor, reducer, brake and shaft coupling. All used to achieve the lifting equipment running smoothly, locating accurately, safety and reliability, technical performance and stability. Key words: Crane。 Reel 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說明書 3 目 錄 1 緒論 ............................................................................................................................ 1 選題意義 .......................................................................................................... 1 起重機(jī)的概述 ........................................................................................ 1 起重機(jī)的國(guó)內(nèi)外發(fā)展?fàn)顩r .................................................................... 2 設(shè)計(jì)內(nèi)容 .......................................................................................................... 3 設(shè)計(jì)參數(shù) .......................................................................................................... 3 設(shè)計(jì)目的 .......................................................................................................... 3 設(shè)計(jì)要求 .......................................................................................................... 3 2 設(shè)計(jì)方法與實(shí)施方案 .............................................................................................. 5 起重機(jī)結(jié)構(gòu)介紹 .............................................................................................. 5 起升結(jié)構(gòu) .......................................................................................................... 5 運(yùn)行機(jī)構(gòu) .......................................................................................................... 5 傳動(dòng)方案的確定 .............................................................................................. 6 3 主起升機(jī)構(gòu)設(shè)計(jì) ........................................................................................................ 8 滑輪組的選取 .................................................................................................. 8 鋼絲繩的選取 .................................................................................................. 9 確定滑輪主要尺寸 ........................................................................................ 10 卷筒的選取 .................................................................................................... 11 電動(dòng)機(jī)的選取 ................................................................................................ 12 算電動(dòng)機(jī)的發(fā)熱條件 .................................................................................... 13 標(biāo)準(zhǔn)減速器的選取 ........................................................................................ 13 起升速度和實(shí)際所需功率的驗(yàn)算 ................................................................ 14 減速器輸出軸強(qiáng)度校核 ................................................................................ 14 制動(dòng)器的選取 ............................................................................................... 15 聯(lián)軸器的選取 ............................................................................................... 15 高速浮動(dòng)軸的計(jì)算 ....................................................................................... 16 4 副起升機(jī)構(gòu)設(shè)計(jì) ...................................................................................................... 19 滑輪組的選取 ................................................................................................ 19 鋼絲繩的選取 ................................................................................................ 20 確定滑輪主要尺寸 ........................................................................................ 21 卷筒的選取 .................................................................................................... 21 電動(dòng)機(jī)的選取 ................................................................................................ 23 驗(yàn)算電動(dòng)機(jī)發(fā)熱條件 .................................................................................... 24 標(biāo)準(zhǔn)減速器的選取 ........................................................................................ 24 起升速度和實(shí)際所需功率的驗(yàn)算 ................................................................ 25 減速器輸出軸強(qiáng)度校核 ................................................................................ 25 制動(dòng)器的選取 .............................................................................................. 26 聯(lián)軸器的選取 .............................................................................................. 26 高速浮動(dòng)軸 的計(jì)算 ...................................................................................... 27 5 起升機(jī)構(gòu)三維建模及鋼絲繩的維護(hù) ...................................................................... 30 起升機(jī)構(gòu)三維建模 ........................................................................................ 30 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說明書 4 鋼絲繩的維護(hù) ................................................................................................ 31 6 重要結(jié)構(gòu)有限元分析 .............................................................................................. 33 有限元分析簡(jiǎn)介 ............................................................................................ 33 主起升機(jī)構(gòu)浮動(dòng)軸有限元分析 .................................................................... 33 副起升機(jī)構(gòu)浮動(dòng)軸有限元分析 ...................................................