【正文】 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說明書 1 摘 要 本文首先介紹了起重機(jī)的概念和分類，以及在國內(nèi)外的發(fā)展概況 。接著對橋式起重機(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。 其中，本次設(shè)計(jì)的起重機(jī)為 50t/20t 雙梁橋式起重機(jī)，主要用于各車間分段生產(chǎn)線和鋼材堆場等處。橋式起重機(jī)本身作橫向移動，車架上的絞車作縱向移動，吊在絞車上的吊鉤作垂向移動，三個方向的運(yùn)動的合成才能使起重機(jī)起作用。 本課題主要對 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)。 設(shè)計(jì)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(jì)運(yùn)用了大量的專業(yè)課程 知識。 通過確定傳動方案，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，選擇合適的電動機(jī)、減速器、制動器和連軸器 ，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。 關(guān)鍵字 ： 橋式起重機(jī)； 減速器 ； 制動器 ； 聯(lián)軸器 ； 卷筒 雙梁橋式起重機(jī)畢業(yè)設(shè)計(jì)說明書 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。 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. The main topic of the 50t / 20t double girder overhead traveling crane is the main lifting 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。 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。 Reducer。 Brakes。 Coupling。 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 電動機(jī)的選取 ................................................................................................ 12 算電動機(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 制動器的選取 ............................................................................................... 15 聯(lián)軸器的選取 ............................................................................................... 15 高速浮動軸的計(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 電動機(jī)的選取 ................................................................................................ 23 驗(yàn)算電動機(jī)發(fā)熱條件 .................................................................................... 24 標(biāo)準(zhǔn)減速器的選取 ..........................................................................