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摘要
混凝土泵車在建筑施工作業(yè)中, 以其節(jié)省勞動力施工速度快、澆筑質(zhì)量高等一系列優(yōu)點受到人們的普遍重視,現(xiàn)己成為建筑施工過程中不可缺少的機械設(shè)備。本文首先介紹了泵車結(jié)構(gòu)和特點以及工作原理，重點對泵車的穩(wěn)定性、底座和回轉(zhuǎn)支承部分進(jìn)行了校核和設(shè)計，通過對泵車的傾翻力矩和穩(wěn)定力矩的比較從而確定整車的穩(wěn)定性，對回轉(zhuǎn)支承的受力載荷和受力分析以及強度校核最終確定選擇雙排球的回轉(zhuǎn)支承，這種回轉(zhuǎn)支承有上、下兩排滾動體，它具有較大的接觸壓力角，同其它形式的回轉(zhuǎn)支承相比能承受很大的軸向載荷和傾翻力矩，回轉(zhuǎn)底座部分通過對危險截面的強度校核以確定回轉(zhuǎn)底座的材料，設(shè)計為了保證其回轉(zhuǎn)底座的結(jié)構(gòu)緊湊可靠在其內(nèi)部設(shè)計了油箱和水箱，在凝土泵車回轉(zhuǎn)區(qū)域由于連接回轉(zhuǎn)支撐及回轉(zhuǎn)減速機，為了保證回轉(zhuǎn)減速機及回轉(zhuǎn)支撐具有良好的嚙和特性，回轉(zhuǎn)部位均設(shè)計具有較大的剛度，在該區(qū)域的設(shè)計廣泛采用的辦法是薄座圈板加筋增加整體剛性的辦法以及厚座圈鋼板的連接方法，主體結(jié)構(gòu)部分通過焊接完成。
關(guān)鍵詞：混凝土泵車；傾翻力矩；穩(wěn)定力矩；回轉(zhuǎn)支承；回轉(zhuǎn)底座；
Abstract
The concrete pump car is in the building the construction the homework, with it economical labor force construction speed quick, sprinkle to build quality a series of advantage is widespreadly valued by people, personal become a building construction process now in indispensability of machine equipments. With the modern science technical quick development, pump car the application is more and more wide in the modernization the building the production line.This text first introduced a pump car structure and characteristics and work principle, point to pump car of stability, base and turn-over paid to accept part to carry on a check and design, through to pump car of the tipping gear moment and stability moment of more and thus make sure the whole car of stability, to the turn-over pay to accept of is carry by dint lotus and is analyze by dint and the strength check an end and certain choice double the turn-over of the volleyball pay to accept, this kind of the turn-over pay accept up, the next two rowses roll over a body, it have bigger contact pressure cape, the turn-over of together other forms pay accept compare can bear very big stalk to carry lotus and tipping gear moment, turn round a base part pass to dangerous piece noodles of strength check with material of make sure the turn-over base, design for promise the structure tightly packed credibility that it turns round a base at it internal designed fuel tank and water tank, pump car turn-over district because of conjunction the turn-over prop up and turn round deceleration machine, for promising turn-over deceleration machine and turn-over prop up to have good and characteristic and turn round part to all design to have bigger just degree, in the design of that district extensively adopt of the way be the conjunction method that thin turn plank adds the increment whole and rigid way and thick turn steel plate, corpus structure part pass to weld completion.
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Keywords The concrete pump truck The tipping gear moment The stability moment
The angulation bearing The swinging base
徐州工程學(xué)院畢業(yè)設(shè)計(論文)
目 錄
1 緒 論 1
1.1前言 1
1.2國外的泵車研究現(xiàn)狀和發(fā)展趨勢 1
1.3我國的研究現(xiàn)狀和發(fā)展趨勢 2
1.4 國內(nèi)外混凝土泵車技術(shù)水平比較 3
1.5 混凝土機械發(fā)展趨勢 4
1.6 泵車現(xiàn)代設(shè)計方法概述 4
2 泵車組成、工作原理及技術(shù)參數(shù)確定 6
2.1混凝土泵車的基本組成與構(gòu)造 6
2.1.1混凝土泵車基本組成 6
2.1.2混凝土泵車構(gòu)造 6
2.2 泵車的工作原理 7
2.3 泵車的主要技術(shù)參數(shù)的確定 8
3混凝土泵車底架設(shè)計特點及整體設(shè)計 10
3.1混凝土泵車底架結(jié)構(gòu)的特點及主要連接方式 10
3.2混凝土泵車底架設(shè)計制造中的難點及重點 10
3.3設(shè)計優(yōu)化理論和計算方法在設(shè)計、制造中的應(yīng)用 11
3.4混凝土泵車底架結(jié)構(gòu)的發(fā)展趨勢 12
4 混凝土泵車的穩(wěn)定性 13
4.1 布料桿的組成及結(jié)構(gòu)形式 13
4.1.1 布料桿 13
4.1.2 布料桿的結(jié)構(gòu) 13
4.1.3 布料桿的形式 13
4.2 部件重心的計算 14
4.3 泵車工作時的穩(wěn)定性計算 16
4.3.1布料桿傾翻力矩的計算 16
4.3.2 布料桿的穩(wěn)定力矩的計算及穩(wěn)定性判斷 17
5 回轉(zhuǎn)支承的設(shè)計 19
5.1回轉(zhuǎn)支承裝置的作用 19
5.2回轉(zhuǎn)支承裝置的類型 19
5.3 回轉(zhuǎn)支承裝置的選擇 19
5.3.1 載荷的確定 19
5.3.2 回轉(zhuǎn)支承的受力分析 20
5.4 回轉(zhuǎn)支承選型 23
5.5 回轉(zhuǎn)支承裝置的強度計算 24
6 回轉(zhuǎn)底座的焊接加工工藝 26
6.1焊接的特點、分類及其應(yīng)用 26
6.1.1 焊接 26
6.1.2 焊接成型技術(shù)的特點 26
6.1.3 焊接方法及分類 27
6.2 計算校核底座與支腿連接處的強度 27
6.2.1 剛性支承體系 27
6.2.2 柔性支承體系 27
6.2.3 支腿反力計算以及危險截面的強度校核 28
6.3 回轉(zhuǎn)底座的整體焊接 30
6.3.1 回轉(zhuǎn)底座的結(jié)構(gòu)特點 30
6.3.2 焊接裝配前的準(zhǔn)備 31
6.3.3 焊接中的定位焊 31
6.4 回轉(zhuǎn)底座的主體焊接 32
6.5 回轉(zhuǎn)底座油箱和水箱的焊接 36
6.6 焊接質(zhì)量檢驗 37
6.6.1 焊接質(zhì)量檢驗的重要性 37
6.6.2 焊接質(zhì)量檢驗的過程 37
結(jié)論 39
致謝 40
參考文獻(xiàn) 41
附錄 42
附錄1 42
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