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黑龍江工程學院本科生畢業(yè)設計
本科學生畢業(yè)設計
東風尖頭140自卸汽車改裝設計
系部名稱： 汽車與交通工程學院
專業(yè)班級： 車輛工程07-4班
學生姓名： 趙笑男
指導教師： 齊曉杰
職 稱： 教授
黑 龍 江 工 程 學 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了很大比重，因為我國是農業(yè)大國，因此中型自卸車是具有中國特色的“國情車”，主要應用地區(qū)是廣大農村及建筑行業(yè)，消費對象是廣大農民及建筑工地，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)道路設計。
本人通過對市場上出現的各種中型自卸汽車的車廂和舉升機構進行了較詳細地了解，確認了東風尖頭140自卸汽車的車廂和舉升機構的設計方案，較好地解決了自卸車設計和制造成本較高的問題，給生產、改裝自卸汽車的生產企業(yè)提供了一種新思路。本文首先對自卸車的設計特點以及國內外發(fā)展現狀做了相關的概述。接著，從車廂的設計、舉升機構的設計、液壓系統(tǒng)的設計等方面進行了東風尖頭140自卸車的總體設計。其中，車廂設計主要有外形及自動開閉機構的設計，舉升機構設計中對舉升機構進行了運動分析和受力分析，然后在液壓系統(tǒng)設計中，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計。
關鍵字：自卸汽車 ；車廂 ；副車架；舉升機構；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
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