轧钢机毕业设计说明书.doc

摘要
轧钢机在我国钢铁生产中具有非常重要作用的一种机械。它是钢材成型的基础工序,在钢铁企业中普遍存在。因为钢厂出来的原钢大部分都需要经过轧钢成型,然后根据需要进行下一步的工艺。所以轧钢机在整个国民经济中都扮演着重要的角色。
本次毕业设计主要是针对小型轧钢机进行整体结构设计,在结构上选择了三辊轧机,轧辊的直径为300mm,主要用于线材等钢材的生产。在动力方面采用了直流电机。同时对轧钢机的关键零部件,如压下装置等进行了详细的设计。
在轧钢机的结构设计中,首先要求做到工作平稳,性能稳定,设计合理。在整体设计中通过对传动装置、驱动方式等进行了全面综合的分析和选取。在零部件设计中对主要受力辊、作用长度等进行了分析计算,以确保能够稳定工作。
关键词:三辊轧钢机;整体结构;零部件设计
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Abstract
Rolling mill has a very important role in China's iron and steel production of a machine. It is the basis of the steel forming process, is widespread in the iron and steel enterprises. As the most original steel mills need to pass rolling forming, and then according to the need for further process. So the rolling mill in the whole national economy play an important role.
This graduation design is mainly for small rolling mill for the overall structural design, chose three roller mill in the structure, the roll diameter of 300 mm, it is mainly used for the production of steel wire, etc. Dc motor is adopted in power. The key parts of rolling mill, such as screwdown has carried on the detailed design.
In the structure design of rolling mill, the first requirement to do work smoothly, stable performance, reasonable design. In the overall design of drive system, transmission device, such as prehensive analysis and selection. In parts design, function of main bearing roller length and so on has carried