【溫馨提示】 dwg后綴的文件為CAD圖，可編輯，無水印，高清圖，，壓縮包內(nèi)文檔可直接點開預(yù)覽，需要原稿請自助充值下載，請見壓縮包內(nèi)的文件及預(yù)覽，所見才能所得，請細(xì)心查看有疑問可以咨詢QQ：414951605或1304139763

黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 本科學(xué)生畢業(yè)設(shè)計 東風(fēng)尖頭140自卸汽車改裝設(shè)計 系部名稱： 汽車與交通工程學(xué)院 專業(yè)班級： 車輛工程07-4班 學(xué)生姓名： 趙笑男 指導(dǎo)教師： 齊曉杰 職 稱： 教授 黑 龍 江 工 程 學(xué) 院 二○一一年六月 The Graduation Design for Bachelor's Degree The east wind tip 140 dump trucks re-equip the design Candidate：Zhao Xiaonan Specialty： Vehicle Engineering Class： 07-04 Supervisor：Professor . Qi Xiaojie Heilongjiang Institute of Technology 2011-06·Harbin 摘 要 去年以來，我國專用車市場取得較好的經(jīng)營業(yè)績，全國395家改裝車企業(yè)改裝汽車23.06萬輛，銷售23.05萬輛。自卸汽車27125輛，占總量的11.76％。其中中型自卸車占據(jù)了很大比重，因為我國是農(nóng)業(yè)大國，因此中型自卸車是具有中國特色的“國情車”，主要應(yīng)用地區(qū)是廣大農(nóng)村及建筑行業(yè)，消費對象是廣大農(nóng)民及建筑工地，功能是以縣、鄉(xiāng)級道路短途運輸為主，其他作業(yè)為輔，專門為鄉(xiāng)鎮(zhèn)道路設(shè)計。 本人通過對市場上出現(xiàn)的各種中型自卸汽車的車廂和舉升機構(gòu)進行了較詳細(xì)地了解，確認(rèn)了東風(fēng)尖頭140自卸汽車的車廂和舉升機構(gòu)的設(shè)計方案，較好地解決了自卸車設(shè)計和制造成本較高的問題，給生產(chǎn)、改裝自卸汽車的生產(chǎn)企業(yè)提供了一種新思路。本文首先對自卸車的設(shè)計特點以及國內(nèi)外發(fā)展現(xiàn)狀做了相關(guān)的概述。接著，從車廂的設(shè)計、舉升機構(gòu)的設(shè)計、液壓系統(tǒng)的設(shè)計等方面進行了東風(fēng)尖頭140自卸車的總體設(shè)計。其中，車廂設(shè)計主要有外形及自動開閉機構(gòu)的設(shè)計，舉升機構(gòu)設(shè)計中對舉升機構(gòu)進行了運動分析和受力分析，然后在液壓系統(tǒng)設(shè)計中，對其工作原理進行了說明并通過計算得出合理的液壓裝置。最后對自卸車副車架進行了設(shè)計。 關(guān)鍵字：自卸汽車 ；車廂 ；副車架；舉升機構(gòu)；液壓系統(tǒng) ABSTRACT Since last year, our country private car market has obtained the good operating results, the national 395 stock car enterprises re-equips automobile 230,600, sells 230,500. Dump truck 27125, account for the total quantity 11.76%. And the medium dump truck occupied the very great proportion, because our country is the large agricultural nation, therefore the medium dump truck has the Chinese characteristic “the national condition vehicle”, mainly applies the area is the general countrysides and the building profession, expends the object is the general farmers and the Construction site, the function is by the county, the township level path short haul primarily, other works for auxiliary, specially for villages and towns road design. Myself through each kind of medium dump truck's compartment which and the lifting organization appeared to the market in carry on had understood in detail that confirmed the east wind tip 140 dump truck's compartments and the lifting organization's design proposal, has solved the dump truck design and the production cost high question well, for the production, the re-equipping dump truck's Production enterprise has provided one kind of new mentality. This article first has made the related outline to dump truck's design feature as well as the domestic and foreign development present situation. Then, from compartment's design, lifting organization's design, hydraulic system's aspects and so on design has carried on the east wind tip 140 dump truck's system designs. And, the compartment design mainly had the contour and the automatic switching mechanism design, in the lifting organization design has carried on the movement analysis and the stress analysis to the lifting organization, then in the hydraulic system design, has carried on the explanation to its principle of work and obtains the reasonable hydraulic unit through the computation. Finally has carried on the design to the dump truck sub-frame. Key words：Dump truck; Compartment; Sub-frame; Lifting mechanism; Hydraulic system III