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徐州工程學(xué)院畢業(yè)設(shè)計(jì)(論文)
摘要
本文簡要介紹了隨車起重機(jī)的結(jié)構(gòu)和特點(diǎn)，總體設(shè)計(jì)了隨車起重機(jī)的性能指標(biāo)以及關(guān)于各臂伸縮的原理計(jì)算。并對隨車起重機(jī)的設(shè)計(jì)要點(diǎn)進(jìn)行了簡要說明。本文重點(diǎn)介紹了隨車起重機(jī)伸縮部分的設(shè)計(jì)，變幅結(jié)構(gòu)的設(shè)計(jì)和上車液壓系統(tǒng)的設(shè)計(jì)。
本次設(shè)計(jì)主要內(nèi)容和要求：設(shè)計(jì)出具有一定重量的隨車起重機(jī)完整的上車結(jié)構(gòu)，繪制出上車裝配圖和每節(jié)臂的結(jié)構(gòu)圖。設(shè)計(jì)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(jì)算，確定每節(jié)臂的截面形狀及截面尺寸，設(shè)計(jì)每節(jié)臂的具體結(jié)構(gòu)和臂之間的連接方式，設(shè)計(jì)整個起重臂伸縮方式。并且設(shè)計(jì)隨車起重機(jī)上車實(shí)現(xiàn)起重臂伸縮，變幅所需的上車液壓系統(tǒng)，計(jì)算選擇合適的泵，油缸及閥等液壓元件。其中，以臂的設(shè)計(jì)最為重要，對此作為重點(diǎn)考慮。
關(guān)鍵詞：隨車起重機(jī)；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
II
徐州工程學(xué)院畢業(yè)設(shè)計(jì)
目 錄
1緒論 1
1.1概述 1
1.2隨車起重機(jī)主要分類 1
1.3選用隨車起重機(jī)注意事項(xiàng) 1
1.3.1隨車起重機(jī)的起重工況 1
1.3.2隨車起重機(jī)的配置 1
1.4國內(nèi)外隨車起重機(jī)的發(fā)展 2
1.4.1國外隨車起重機(jī)的發(fā)展現(xiàn)狀 3
1.4.2國內(nèi)隨車起重機(jī)發(fā)展現(xiàn)狀 5
1.4.3隨車起重機(jī)的發(fā)展趨勢 6
2 隨車起重機(jī)的性能參數(shù) 11
2.1 性能參數(shù) 11
2.2計(jì)算載荷與設(shè)計(jì)方法 12
3 臂的設(shè)計(jì) 14
3.1各臂長的計(jì)算 14
3.2吊臂截面的選擇 15
3.2.1基本臂的設(shè)計(jì) 22
3.2.2第二節(jié)臂的設(shè)計(jì) 23
3.2.3第三節(jié)臂的設(shè)計(jì) 25
3.3耳板及軸銷的設(shè)計(jì) 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(shè)計(jì) 29
4.1變幅油缸的設(shè)計(jì) 29
4.2泵的選擇 30
4.3箱型吊臂伸縮機(jī)構(gòu) 31
結(jié)論 32
致謝 33
參考文獻(xiàn) 34
附錄 35
附錄1 35
英文原文 35
中文翻譯 46
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