张力辊毕设论文王肖材料.doc

摘 要 钢铁工业是国民经济的基础产业，在我国经济的发展中一直处在主要地位，我国钢铁工业的发展长期以来都得到国家的重视，我国钢铁工业发展迅速，形成了完整的成熟的工业体系。 板带材是钢铁产业中的一类重要产品，早已成为国家基建和人民生活中常用的重要物资。伴随着中国工业化和经济建设的进一步深入，对板带材等钢铁产品的需求也愈加强劲。 随着科学技术的发展，板带材生产目前大部分采用连续化成卷生产。在带钢生产过程中，张力辊(Tension Roll)作为重要组成部分，在板带材生产线上的作用至关重要。该设备在连续退火机组中使用非常广泛。 张力辊装置就是用于在连续带材生产线上实现张力调节的一种设备。采用张力辊装置来实现张力调节是一项新技术 。其原理为： 带钢包绕在张力辊上，在其包绕接触处(即包角处)产生摩擦力，以此使出口张力与入口张力按某种规律变化，借此改变张力值，对机组实现张力控制。 在查阅了大量相关资料和对连退机组及其张力辊相关设备进行了系统的了解下，本文中以机械动力学、机械原理、机械设计和材料力学等知识作为理论基础，从经济、可靠、实用的角度出发，对张力辊和压辊的结构、传动系统以及压下装置进行了细致的设计，并对各部分的重点零部件进行了强度校核。 关键词： 张力辊； 钢铁； 板带材 Abstract Iron and steel industry is a foundation industry of economy, it acts as a very important role during the development of our country. By the lasting support and guidance of the government, our iron and steel industry develops quickly, a mature industry system has been built up. Board strips is an important class of product in steel industry and had become a common material in the national’s infrastructure and the Peoples Daily life. Along with the futher development of industrialization and economy construction in China, our country has a strong demand of iron and steel, such as Board strips. With the development of science and technology, now most of the production of board strips use the method of continuously volume production. In the production process, the Tension roller as an important part in the production process of strip, act as an important role in the board strips production line. And the equipment has come to widespread used in the continuous annealing unit is very extensive. Tension roller device is used in cont as a kind of equipment to realize tension adjustment. And adopt tension roller to realize tension adjust is a new technology. The principle is: Strip bag around tension roller, and at the contact point (namely Angle place) produces friction, so as to make the export tension and entry tension change according to some law ,and the the tension value will change. Then realized the tension control of the