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SX70 150 挤出机 液压 执行机构 系统 设计

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SX70-150挤出机液压执行机构系统设计,SX70,150,挤出机,液压,执行机构,系统,设计

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摘要 液压传动也称为流体传动，是主要利用液体压力能的液体传动。它是根据17世纪帕斯卡提出的液体静压力传动原理而发展起来的一门新兴技术，是工农业生产中广为应用的一门技术。如今，液压传动技术水平的高低已成为一个国家工业发展水平的重要标志。 1795年英国约瑟夫。布拉曼（J0seph Braman， 1749-1814），在伦敦用水作为工作介质，以水压机的形式将其应用于工业上，诞生了世界上第一台水压机。1905年将工作介质水改为油，又进一步得到改善。 第一次世界大战（1914-1918）后液压传动广泛应用，特别是1920年以后，发展更为迅速。液压元件大约在19世纪末20世纪初的20年间才开始进入正规的工业生产阶段。1925年维克斯（F。Vikers)发明了压力平衡式叶片泵，为近代液压元件工业或液压传动的逐步建立奠定了基础。20世纪初康斯坦丁。尼斯克（G。Constantimsco)对能量波动传递所进行的理论及实际研究，1910年对液力传动（液力联轴节、液力变矩器等）方面的贡献，使这两方面领域得到了发展。 第二次世界大战（1941-1945）期间，在美国机床中有30%应用了液压传动。应该指出，日本液压传动发展较欧美等国家晚了近20多年。在1955年前后，日本迅速发展液压传动，1956年成立了“液压工业会”。近2030年间，日本液压传动发展之快，居世界领先位置。液压机是制品成型生产中应用最广的设备之一。自十九世纪问世以来发展很快，已成为工业生产中必不可少的设备之一。由于液压机在工作中的广泛适应性，使得其在国民经济各部门获得了广泛的应用。如板材成型；管、线、型材挤压；粉末冶金、塑料及橡胶制品成型；胶合板压制、打包；人造金刚石、耐火砖压制和炭极压制成型；轮轴压装、校直等等。随着液压技术的发展，液压机的应用越来越广泛，尤其是150吨液压机在压装和成型的应用，针对液压机的应用，我设计了“150t液压机液压系统”，此系统，能够实现的工作循环为快速空程下行慢速加压保压快速回程停止。要求采用液压方式实现运动部件的平衡；不考虑各种损失。本次设计，先后做了系统的设计，对系统的元件选型，对非标件的结构设计，性能验算，完成说明书，绘图等任务。关键词：液压系统设计；液压方式；运动平衡AbstractHydraulic transmission, also known as fluid transmission, is the main use of liquid pressure liquid transmission. It is a new technology which is developed according to the hydrostatic pressure transmission principle of the liquid made by Pascal in seventeenth Century. It is a technology widely used in industrial and agricultural production. Today, the level of hydraulic transmission technology has become an important symbol of the level of national industrial development.Joseph in 1795. Braman (Braman J0seph, 1749-1814), in London as a working medium of water, water press in the form of its application in the industry, the birth of the worlds first hydraulic pressure machine. 1905 will work medium water to oil, and further improve.After the first World War (1914-1918), the hydraulic transmission is widely used, especially after 1920, the development is more rapid. Hydraulic components in the beginning of the end of twentieth Century nineteenth Century 20 years before entering the formal phase of industrial production. 1925 Vickers (F. Vikers) the pressure balanced vane pump is the foundation for the gradual establishment of the hydraulic components industry or hydraulic transmission. Early twentieth Century Constantine. Nice gram (G. The Constantimsco) of wave energy transfer of theoretical and practical research, 1910 on the hydraulic transmission (hydraulic coupling, hydraulic variable torque converter, etc.) in terms of the contribution, these two areas of development.During the Second World War (1941-1945), there were 30% applications of hydraulic transmission in American machine tools.It should be noted that the development of Japans hydraulic transmission over the United States and other countries late last 20 years. In 1955, the rapid development of hydraulic transmission in Japan, the establishment of the hydraulic industry in 1956 .In the past 2030 yearsThe development of Japans hydraulic transmission fast,ranking the worldLeader in.In the production of products of molding press is one of the most widely used equipment. Since the 19th century its development is fast, has become an essential equipment in industrial production. Because of the extensive adaptability press at work, so that in the sectors of the national economy has been widely used. Such as sheet forming, pipe extrusion line, powder metallurgy, plastic and rubber molding, plywood, packaging, synthetic diamond, oppression and refractory carbon very pressing molding, wheel pressed, straightening, etc.Along with the development of technology, hydraulic press used more widely, especially in 150 tons of hydraulic pressing and molding application, according to the hydraulic press application , I designed 150t hydraulic press hydraulic system, this system can realize the work cycle downlink rapidly compression slowly pressure-keepingthe quick return stop. Requiring to keep the balance of hydraulic movement. Dont consider various losses. This design has made system design, selection of system components of non-stan