【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 50t/20t 雙梁橋式起重機的主起升機構(gòu)、副起升機構(gòu)、 主起升機構(gòu)卷筒組及滑輪組、副起升機構(gòu)卷筒組及滑輪組、卷筒、滑輪 、軸等 進行 設(shè)計。接著對橋式起重機的特點、分類以及構(gòu)造進行了詳細的敘述。 并且對所設(shè)計的起升機構(gòu)進行了三維建模和有限元分析。 設(shè)計過程中查閱了大量的國內(nèi)外的相關(guān)資料，所做的設(shè)計運用了大量的專業(yè)課程 知識。 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 雙梁橋式起重機畢業(yè)設(shè)計說明書 3 目 錄 1 緒論 ............................................................................................................................ 1 選題意義 .......................................................................................................... 1 起重機的概述 ........................................................................................ 1 起重機的國內(nèi)外發(fā)展?fàn)顩r .................................................................... 2 設(shè)計內(nèi)容 .......................................................................................................... 3 設(shè)計參數(shù) .......................................................................................................... 3 設(shè)計目的 .......................................................................................................... 3 設(shè)計要求 .......................................................................................................... 3 2 設(shè)計方法與實施方案 .............................................................................................. 5 起重機結(jié)構(gòu)介紹 .............................................................................................. 5 起升結(jié)構(gòu) .......................................................................................................... 5 運行機構(gòu) .......................................................................................................... 5 傳動方案的確定 .............................................................................................. 6 3 主起升機構(gòu)設(shè)計 ........................................................................................................ 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 電動機的選取 ................................................................................................ 12 算電動機的發(fā)熱條件 .................................................................................... 13 標(biāo)準(zhǔn)減速器的選取 ........................................................................................ 13 起升速度和實際所需功率的驗算 ................................................................ 14 減速器輸出軸強度校核 ................................................................................ 14 制動器的選取 ............................................................................................... 15 聯(lián)軸器的選取 ............................................................................................... 15 高速浮動軸的計算 ....................................................................................... 16 4 副起升機構(gòu)設(shè)計 ...................................................................................................... 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 電動機的選取 ................................................................................................ 23 驗算電動機發(fā)熱條件 .................................................................................... 24 標(biāo)準(zhǔn)減速器的選取 ........................................................................................ 24 起升速度和實際所需功率的驗算 ................................................................ 25 減速器輸出軸強度校核 ................................................................................ 25 制動器的選取 .............................................................................................. 26 聯(lián)軸器的選取 .............................................................................................. 26 高速浮動軸 的計算 ...................................................................................... 27 5 起升機構(gòu)三維建模及鋼絲繩的維護 ...................................................................... 30 起升機構(gòu)三維建模 ........................................................................................ 30 雙梁橋式起重機畢業(yè)設(shè)計說明書 4 鋼絲繩的維護 ................................................................................................ 31 6 重要結(jié)構(gòu)有限元分析 .............................................................................................. 33 有限元分析簡介 ............................................................................................ 33 主起升機構(gòu)浮動軸有限元分析 .................................................................... 33 副起升機構(gòu)浮動軸有限元分析 ...................................................