毕业设计（论文）--货车矿粉整平机机械设计.docVIP

货车矿粉整平机机械设计 摘要 本课题是完成货车矿粉整平机机械设计。 全文主要内容如下：简要介绍货车矿粉整平机的总体方案设计；执行件滚筒及推手的设计：主支承件龙门框架、底座及底轮、轮轴的设计；滚筒支承部件设计；滚筒转动的动力及传动装置设计；滚筒起吊的动力及传动设计及底轮的动力及传动设计。设计中有关支承部件的设计较多地选用了型钢以及焊接的连接方式，以尽量节约材料消耗和降低成本。而有关动力及传动装置的设计，则采用应用广泛的动力装置三相异步电动机以及链传动、齿轮传动等常用的传动形式，这些部件的设计一般都有其固定的设计套路，应尽量采用。其他一些零部件的设计可以应用《机械设计》、《材料力学》中的方法与原则，但有些还需采用经验值或借鉴其他一些机械的设计，但应尽量查阅有关的设计手册国家标准、相关标准及公式。 关键字：货车，整平机，滚筒，框架，传动 The mechanical design of ore leveling machine for train cars Abstracts: The project is to complete the mechanical design of ore leveling machine for Train cars. The main contents of the paper are as follows:Introduce the overall design of ore leveling machine for train cars briefly;the design of the roller tube and the pushing hands which act as the implementatiive parts;the design of gantry framework which act as the main supporting parts and the design of the base and bottom wheels;the design of the roller bearing parts;The design of the power equipments and the Gearing parts which are linked to the roller tube. To minimize the material consumption and the cost,we can use steel and welded connections in the design of the supporting components as much as possible.And in the design of the power equipments and the gearing parts,we choose three-phase asynchronous motor ,chain drive and other commonly used forms.It usually has a fixed routine to design these components,and it should be adopted.the design of other parts can be applied to mechanical design, Mechanics of Materials in the methods and principles.But some we need to use experience to determine the value or refer to some other mechanical designs.However, in the design we should always refer to the relevant national standards manuals, relevant standards and formulas. KEY WORDS：train cars, leveling machine, roller tube, frame, transmissions 1 绪 论 1.1 我国矿物铁路运输现状 我国资源丰富、经济总量较大，而区域经济发展和资源、原材料分布又不平衡铁路因运能大、运价低的优势，是中长途货物、区域及省际间物资调运的首选运输方式。目前铁路货物平均运距达 820公里，是公路的13倍、内河航运的4倍，在运输的主要货类中，平均运距最长达3400多公里；在26个货类中有占货运总量1／4的17个货类平均运距在1000公里以上；跨省市的货运量也要占到铁路货运总量的2