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畢業(yè)設計 隨車起重機伸縮臂架的優(yōu)化設計
目 錄
摘 要---------------------------------------------------------------------------------------------1
前 言---------------------------------------------------------------------------------------------2
1. 概述------------------------------------------------------------------------------------------6
1.1 隨車起重機用途和特點--------------------------------------------------------------6
1.2 型號意義--------------------------------------------------------------------------------6
1.3 術語解釋--------------------------------------------------------------------------------6
1.4 結構原理--------------------------------------------------------------------------------6
2. 伸縮臂架的計算----------------------------------------------------------------------------7
2.1 伸縮臂架的作用載荷及分析---------------------------------------------------------7
2.2 伸縮臂架的臨界力的計算------------------------------------------------------------9
2.3 伸縮臂架的剛度校核------------------------------------------------------------------9
2.4 伸縮臂架的強度校核-----------------------------------------------------------------13
2.5 伸縮臂局部穩(wěn)定性校核--------------------------------------------------------------17
2.6 伸縮臂的整體穩(wěn)定性校核-----------------------------------------------------------19
3. 回轉機構的選型---------------------------------------------------------------------------21
3.1 回轉支承的受載情況-----------------------------------------------------------------21
3.2 回轉支承選型所需技術參數--------------------------------------------------------21
4. 液壓系統(tǒng)的設計計算---------------------------------------------------------------------26
4.1概述---------------------------------------------------------------------------------------26
4.2工作原理---------------------------------------------------------------------------------26
4.3 性能分析--------------------------------------------------------------------------------29
4.4 液壓缸主要尺寸的確定--------------------------------------------------------------29
4.5 液壓泵的選擇--------------------------------------------------------------------------31
4.6 油箱的選擇-----------------------------------------------------------------------------32
4.7 管件--------------------------------------------------------------------------------------33
5. 結論與展望---------------------------------------------------------------------------------35
5.1 結論--------------------------------------------------------------------------------------35
5.2 隨車起重機的發(fā)展趨勢--------------------------------------------------------------36
6. 畢業(yè)設計總結------------------------------------------------------------------------------38
7. 致謝------------------------------------------------------------------------------------------39
8. 參考文獻------------------------------------------------------------------------------------40
摘 要
本文概述了國內外伸縮式隨車起重機的現狀，并就有關型號的國內外隨車起重機進行了比較。介紹了我國伸縮式隨車起重機的結構特點及各部分的工作原理。著重對4噸兩節(jié)伸縮式隨車起重機的伸縮臂架和液壓系統(tǒng)進行了優(yōu)化設計。運用金屬結構的設計方法驗證了金屬結構部分主要是兩節(jié)伸縮臂架的計算原理；另外，對回轉機構也作了選型和設計。最后對隨車起重機的發(fā)展趨勢作了簡單分析。
關鍵詞：伸縮式， 隨車起重機， 臂架， 優(yōu)化，液壓系統(tǒng)， 回轉機構
Abstract
This paper presents an overview of extendable crane-drivers, and a comparison with the concern home-made cranes. It introduces the structural characteristics and some of the principles of extendable crane-style cars. Focuses on two sections telescopic booms and hydraulic crane systems design. Use metal structure design methodology certification is a major part of the metal structure of two sections telescopic booms calculation principles; In addition, the rotation mechanism design also is made. Finally it shows the development trend of a simple crane driver analysis.
Keywords : telescopic type, assigned crane, booms, hydraulic system, Turnaround mechanism
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