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目錄
第1章 前言·················································································1
1.1塔式起重機(jī)概述········································································1
1.2塔式起重機(jī)的發(fā)展趨勢································································1
第2章 總體設(shè)計···········································································2
2.1 概述····················································································2
2.2確定總體設(shè)計方案···································································2
2.2.1 選擇確定總體參數(shù)······························································· 2
2.2.2工作機(jī)構(gòu)··········································································20
2.2.3安全保護(hù)裝置··································································· 28
2.3 總體設(shè)計設(shè)計總則···································································30
2.3.1 整體工作級別···································································30
2.3.2 機(jī)構(gòu)工作級別···································································30
2.3.3 主要技術(shù)性能參數(shù)······························································31
2.4 平衡重的計算·········································································31
2.5 起重特性曲線·········································································33
2.6 塔機(jī)風(fēng)力計算······································································· 35
2.6.1工作工況Ⅰ···································································· 35
2.6.2工作工況Ⅱ···································································· 39
2.6.3非工作工況Ⅲ··································································41
2.7 整機(jī)的抗傾覆穩(wěn)定性計算···························································44
2.7.1工作工況Ⅰ···································································· 45
2.7.2工作工況Ⅱ···································································· 46
2.7.3非工作工況Ⅲ··································································47
2.7.3非工作工況Ⅳ··································································48
2.8 固定基礎(chǔ)穩(wěn)定性計算································································49
第3章 變幅機(jī)構(gòu)的設(shè)計和計算······················································ 51
3.1變幅機(jī)構(gòu)的形式······································································ 51
3.2 確定卷筒的尺寸······································································51
3.2.1 卷筒的名義直徑·······························································51
3.2.2 多層繞卷筒相關(guān)參數(shù)計算·····················································52
3.3. 選擇電動機(jī)、減速器、制動器、聯(lián)軸器·········································· 53
3.3.1選擇電動機(jī)···································································· 53
3.3.2 選擇減速器···································································· 54
3.3.3 變幅機(jī)構(gòu)制動器的選擇·······················································54
3.3.4變幅機(jī)構(gòu)聯(lián)軸器的選擇······················································· 55
3.4. 驗(yàn)算變幅速度·······································································57
3.5驗(yàn)算起、制動時間驗(yàn)算······························································ 57
3.6電動機(jī)發(fā)熱校驗(yàn)······································································ 59
3.7 校驗(yàn)卷筒強(qiáng)度·········································································60
第4章 變幅小車的設(shè)計·······························································61
4.1 變幅小車的形式······································································61
4.2 變幅小車的設(shè)計······································································61
4.2.1繩索牽引式小車構(gòu)造及其驅(qū)動方式··········································61
4.2.2 運(yùn)行小車牽引力計算··························································63
4.2.3牽引繩最大張力································································66
4.2.4 選擇牽引繩····································································67
4.2.5 牽引卷筒計算··································································67
畢業(yè)設(shè)計小結(jié)··············································································71
致謝·························································································· 72
參考文獻(xiàn)···················································································· 74