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目錄
第一章 前言·······················································1
1.1 塔式起重機概述··············································1
1.2 塔式起重機的發(fā)展趨勢········································1
第二章 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 金屬結(jié)構(gòu)················································2
2.2.2 工作機構(gòu)···············································19
2.2.3 安全保護(hù)裝置···········································27
2.3 總體設(shè)計設(shè)計總則···········································29
2.3.1 整機工作級別 ··········································29
2.3.2 機構(gòu)工作級別···········································29
2.3.3主要技術(shù)性能參數(shù)······································· 30
2.4 平衡臂與平衡重的計算·······································30
2.5 起重特性曲線···············································32
2.6 塔機風(fēng)力計算·············································· 34
2.6.1 工作工況Ⅰ·············································34
2.6.2 工作工況Ⅱ·············································38
2.6.3 非工作工況Ⅲ···········································40
2.7整機的抗傾翻穩(wěn)定性·········································43
2.7.1工作工況Ⅰ·············································44
2.7.2工作工況Ⅱ·············································45
2.7.3工作工況Ⅲ·············································46
2.7.4工作工況Ⅳ·············································47
2.8固定基礎(chǔ)穩(wěn)定性計算·········································49
第三章 平衡臂結(jié)構(gòu)設(shè)計及計算···································51
3.1 平衡臂總體結(jié)構(gòu)設(shè)計·········································51
3.2 平衡臂計算·················································51
3.2.1 計算簡圖及工況 ········································51
3.2.2 平衡臂穩(wěn)定性計算·······································54
3.2.3載荷計算···············································55
3.3 拉桿受力計算···············································59
3.4 平衡重設(shè)計及計算···········································59
3.4.1 平衡重設(shè)計 ············································59
3.4.2 計算··················································59
3.4.3校核···················································60
第四章 畢業(yè)設(shè)計小結(jié)············································63
致謝······························································64
主要參考文獻(xiàn)····················································65