隨車起重機伸縮臂架的優(yōu)化設計,隨車起重機伸縮臂架的優(yōu)化設計,起重機,伸縮,優(yōu)化,設計 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(shù)--------------------------------------------------------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(nèi)外伸縮式隨車起重機的現(xiàn)狀，并就有關型號的國內(nèi)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 - 3 -