毕业论文---rl5250gsnj举升式气卸粉罐汽车设计说明书.doc

本科学生毕业设计 RL5250GSNJ举升式气卸粉罐汽车 改装设计 The Graduation Design for Bachelors Degree Design of RL5250GSNJ Air Unload Powder Tank Dump Truck Candidate：Yan Shi Specialty：Veheicle Engineering Class：B05-17 Supervisor：Associate Prof. Li Hanwu Heilongjiang Institute of Technology 2009-06·Harbin ,保护环境和减轻劳动强度等诸多优点。目前，粉粒物料运输车已经得到了广泛的应用，粉粒物料运输己经影响到我们生活的每一部分，对国民经济的发展有着重要的意义。 文中介绍了举升式气卸粉罐汽车的改装设计说明。对粉罐罐体、流态化床、举升机构、气卸系统、人孔、卸料系统和附属机构进行了详细设计，并对不同方案进行了比较分析，保证了举升式气卸粉罐汽车的先进性及实用性。叙述了在改装举升式气卸粉罐汽车过程中容易出现的问题及相关专用设备的工作原理，并对整车性能进行了分析。 关键词：专用汽车；散装水泥罐；流态化床；前顶举升机构；粉粒物料运输  ABSTRACT Powder and materials convey truck mainly transport the cement, lime,calaium carbide and fly ash. There are many advantages just like the resource conservation, environmental protection and reduce the labor intensity. But for the powder and materials with the state of crude grain, large proportion, high moisture content, the ordinary convey truck cannot achieve the expected purpose. This product is designed as a lifting type, so when the pump truck loaded and droved the line at the center of the tank is in horizontal position; when unloading, the lifting mechanism will rise and make a certain angle with the horizon, then use the air compressed convey the cement out effectively. This elevator function makes the tank has a simple structure; the loading capacity and the adaptability of the medium for the tank are greatly improved, the potentials of the convey truck are explored maximumly.The air unload powder tank dump truck are component by the automobile chassis, powder tank gassy assembly, pneumatic conveying system, hydraulic pressure lifting system, electronic control system. This instruction is mainly about selection and designs each above system. Key words: Special Vehicle; Cement Tank; Air Unload; reposing Lift; Powder and materials convey  目 录 摘 要 I A II 第1章 绪论 1 1.1 改装举升式气卸粉罐运输车的目的和意义 1 1.2 国内外现状及发展前景 2 1.2.1 国内外发展现状 2 1.2.2 散装水泥运输车的发展前景 3 1.3 国外专用汽车产品的特点及其发展趋势 4 1.