【正文】 ................................ 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(shuō)明書(shū) 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 .................................................................... 34 吊鉤有限元分析 ............................................................................................ 36 致 謝 ............................................................................................................................ 39 附 錄 ............................................................................................................................ 40 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 1 1 緒論 選題意義 起重機(jī)的概述 雙梁 橋式起重機(jī)是一種 以 提高勞動(dòng)生產(chǎn)率 為主 的 重要物品搬運(yùn)設(shè)備，主要適應(yīng)車(chē)間的 物品搬運(yùn)、設(shè)備的安裝與檢修等用途。 Brakes。 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。 關(guān)鍵字 ： 橋式起重機(jī)； 減速器 ； 制動(dòng)器 ； 聯(lián)軸器 ； 卷筒 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 2 Abstract This paper firstly introduces the concept and classification of the crane, as well as the developments at home and abroad. Then the crane’s characteristics, classification and structure are analyzed in detail. And the design of the hoisting mechanism has 3D modeling and finite element analysis. Among them, the design of the crane is the 50t / 20t double beam bridge crane, mainly used in the workshop section production line and steel yard. Bridge crane itself is used to do lateral movement。 設(shè)計(jì)過(guò)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(zhuān)業(yè)課程 知識(shí)。橋式起重機(jī)本身作橫向移動(dòng)，車(chē)架上的絞車(chē)作縱向移動(dòng)，吊在絞車(chē)上的吊鉤作垂向移動(dòng)，三個(gè)方向的運(yùn)動(dòng)的合成才能使起重機(jī)起作用。 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。雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 1 摘 要 本文首先介紹了起重機(jī)的概念和分類(lèi)，以及在國(guó)內(nèi)外的發(fā)展概況 。接著對(duì)橋式起重機(jī)的特點(diǎn)、分類(lèi)以及構(gòu)造進(jìn)行了詳細(xì)的敘述。 其中，本次設(shè)計(jì)的起重機(jī)為 50t/20t 雙梁橋式起重機(jī)，主要用于各車(chē)間分段生產(chǎn)線(xiàn)和鋼材堆場(chǎng)等處。 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)。 通過(guò)確定傳動(dòng)方案，選擇滑輪組和吊鉤組，選擇合適的鋼絲繩，計(jì)算滑輪的主要尺寸，確定卷筒尺寸并驗(yàn)算其強(qiáng)度，選擇合適的電動(dòng)機(jī)、減速器、制動(dòng)器和連軸器 ，使得 起重設(shè)備運(yùn)行平穩(wěn)，定位準(zhǔn)確，安全可靠，性能穩(wěn)定。 winch frame is used to do longitudinal movement, the hook which hanging in the winch is used to do vertical movement, the movement in three directions makes the crane function well. 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