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徐州工程學院畢業(yè)設計(論文)
摘要
本文簡要介紹了隨車起重機的結構和特點，總體設計了隨車起重機的性能指標以及關于各臂伸縮的原理計算。并對隨車起重機的設計要點進行了簡要說明。本文重點介紹了隨車起重機伸縮部分的設計，變幅結構的設計和上車液壓系統(tǒng)的設計。
本次設計主要內容和要求：設計出具有一定重量的隨車起重機完整的上車結構，繪制出上車裝配圖和每節(jié)臂的結構圖。設計出上車液壓系統(tǒng)，繪制上車液壓系統(tǒng)原理圖。通過分析和計算，確定每節(jié)臂的截面形狀及截面尺寸，設計每節(jié)臂的具體結構和臂之間的連接方式，設計整個起重臂伸縮方式。并且設計隨車起重機上車實現(xiàn)起重臂伸縮，變幅所需的上車液壓系統(tǒng)，計算選擇合適的泵，油缸及閥等液壓元件。其中，以臂的設計最為重要，對此作為重點考慮。
關鍵詞：隨車起重機；伸縮臂；液壓元件；選型
Abstract
This article is briefly introduced with the vehicle the hoist crane structure and the characteristic, the system design with the vehicle hoist crane performance index as well as the principle computation which has expanded and contracted about various arms. And it has carried on the briefing with the vehicle to the hoist crane design main point. This article is introduced with emphasis the hoist crane expands and contracts the partial designs with the vehicle, the amplitude structure design and boards the hydraulic system design.
This design main content and request: Designs has the certain weight the hoist crane integrity to board with the vehicle the structure, draws up boards the assembly drawing and each arm structure drawing. Designs boards the hydraulic system and the plan boards the hydraulic system schematic diagram. Through the analysis and the computation, I determined each arm the section size and the section shape, design each arm between the concrete structure and the arm connection way, the design entire erector beam book expansion and contraction way. And designs the hoist crane to board the realization erector beam to expand and contract with the vehicle, the amplitude must boards the hydraulic system, computation choice appropriate pumping, hydraulic pressure part and so on cylinder and valve Among them, thought especially the arm design is most important, regarding this I with emphasis considered.
Keywords With the vehicle hoist crane Expands and contracts the arm Hydraulic pressure part Shaping
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徐州工程學院畢業(yè)設計
目 錄
1緒論 1
1.1概述 1
1.2隨車起重機主要分類 1
1.3選用隨車起重機注意事項 1
1.3.1隨車起重機的起重工況 1
1.3.2隨車起重機的配置 1
1.4國內外隨車起重機的發(fā)展 2
1.4.1國外隨車起重機的發(fā)展現(xiàn)狀 3
1.4.2國內隨車起重機發(fā)展現(xiàn)狀 5
1.4.3隨車起重機的發(fā)展趨勢 6
2 隨車起重機的性能參數(shù) 11
2.1 性能參數(shù) 11
2.2計算載荷與設計方法 12
3 臂的設計 14
3.1各臂長的計算 14
3.2吊臂截面的選擇 15
3.2.1基本臂的設計 22
3.2.2第二節(jié)臂的設計 23
3.2.3第三節(jié)臂的設計 25
3.3耳板及軸銷的設計 27
3.3.1耳板校核 27
3.3.2立柱與基本臂鉸接處軸的校核 28
4 液壓系統(tǒng)的設計 29
4.1變幅油缸的設計 29
4.2泵的選擇 30
4.3箱型吊臂伸縮機構 31
結論 32
致謝 33
參考文獻 34
附錄 35
附錄1 35
英文原文 35
中文翻譯 46
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