设计说明书 EQ3090自卸车改装设计.pdf

摘要 去年以来，我国专用车市场取得较好的经营业绩，全国395 家改装车企业改装汽车 23.06 万辆， 售23.05 万辆。自卸汽车27 125 辆，占总量的11.76 ％。随着国内基础设施 建设需要不断增加，自卸车产量近年来一直保持较高产 量，在专用车综合产量中保持 第一位置，但在种类、型式、材料运用方面与国外还有一定的差距。 本文首先对自卸车的设计特点以及国内外发展现状做了相关的概述。接着，从车厢 的设计、举升机构的设计、取力器的设计等方面进行了EQ3090 自卸车的总体设计，并对 主车副车架进行了改装与设计。对整个EQ3090 自卸车的外廓尺寸、轮距与轴距尺寸、前 悬后悬以及整车的装载质量、整备质量、总质量和轴载质量进行了相关的计算与设计。 关键字 ：自卸汽车 总体布置设计 副车架 轴载质量 举升机构 1 Abstract Since last year, our country Special Purpose Vehicle in ustry is in the boom, with 395 car refit enterprise all aroun the country refitting 230.6 thousan cars, selling 230.5 thousan . auto unloa vehicle the 27 125 car, account for 11.76% of total eal. along with the evelopment of local foun ation facilities, in recent years auto unloa vehicle yiel has been keeping in higher pro uction sales, remains in the first place in Special Purpose Vehicle pro uction. However, in aspects of category, pattern, material application, compare with foreign countries there is still a long way to go. In this paper, firstly, I ma e a general about the auto unloa vehicle esign an its evelopment omestic an abroa . Then, at the point of compartment, rising organization etc, I starte the esign of the EQ3090 auto unloa vehicle. Also, I refit an esigne the vice-car stalk. To whole EQ3090 the la ing quantity, reorganization quantity, measure, trea , wheelbase, forwar suspension behin ，procee e the relate calculation an esign. Key words: auto unloa vehicle total arrangement vice-car stalk raising organization 2 1 概述 1.1 专用汽车设 专用汽车与普通汽车的区别主要是改装了具有专用功能的上装部分，能完成某些特殊 的运输和作业功能。因此在设计上，除了要满足基本