提升机液压系统毕业设计.doc

摘 要 钢铁企业以其特有的生产方式和特有的原料与产品，使其与称重计量有着密不可分的联系。在钢铁企业里的所有计量工作中，称重计量放在重中之重。而在我国工业企业里唯有冶金企业对称重计量要求更为突出。抓好冶金企业的称重计量工作是冶金生产顺行与发展的需要。影响到如果几亿的铁矿石和辅料，经过多道工艺周转变成近亿钢材，每一步都承受着巨额计量。从排岩到采矿，从磨矿到选矿和铁精矿输出，从烧结的配料到烧结矿的输出，从炼铁的配料到铁水的输出，从炼钢的配料到连铸坯的形成，钢材的轧制与输出，它们承受着最大的计量数额。Abstract Iron and steel enterprises with its unique mode of production and unique raw materials and products to match the weight measurement is inextricably linked. Weight measurement on the top priority in all metrological work in the iron and steel enterprises. Only metallurgical enterprises in Chinas industrial enterprises, more prominent weight measurement requirements. Anterograde and development of metallurgical production needs to grasp the weight measurement of the metallurgical enterprises. This design is the design billet hoist weighing the hydraulic system. Executive body movements and stability of the system in its hydraulic system will directly affect the weighing accuracy, if the implementing agency in the hydraulic system instability or hydraulic system instability will have serious consequences for weighing accuracy and equipment. Billet upgrade a machine weighing hydraulic system process requirements, the hydraulic system to complete the following actions in the production process, hydraulic cylinders: rapid promotion; hydraulic cylinder: slow improvement; hydraulic cylinder: stop (electronic weighing equipment, weighing); hydraulic cylinder : slow down; hydraulic cylinder: quick drop; hydraulic cylinder: stop (completion of a weighing cycle). The billet hoist weighing system is to enter the weight of the furnace and billet rolling mills used for weighing, in order to check the analysis of the burning of steel billet in the heating process for the accurate calculation of the finished product rate, to provide reference data for the device. Consider off in the pressure strain resistance film (electronic weighing devices) on the hoist vibration due to the slab surface oxide, affect weighing accuracy,