摘要
20世纪50年代我过的液压工业才开始，液压元件初用于锻压和机床设备上。六十年代有了进一步的发展，渗透到了各个工业部门，在工程机械、冶金、机床、汽车等工业中得到了广泛的应用。如今液压系统技术向着高压、高速、高效率、高集成等方向发展。同时，新元件的应计算机的仿真和优化等工作，也取得了卓越的成效。
机械工程主要配套件有动力元传动元件、液压元件及电器元件等。内燃式柴油发动机是目前工程机械动力元件其本上都采用的：传动分为机械传动、液力机械传动等。液力机械传动是现在最普遍使用的。液压液压元件主要有泵、缸、密封件和液压附件。
当前。我过液压件也已从低压到高压形成系列。我过机械工业引进并吸收新技术的基础上进行好好研究，活的可符合国际标准的液压产品。并进一步的优化自己的产业结构，得到性能更好符合国家标准的产品。国外的工程机械配套件的体电视成产悠久、技术成熟、生产集中度高、品牌效应突出。主机和配套件事相互影响、相互促进的。当下，国外工程机械配套件的发展形势较好。
最近这些年国外的工程机械有一种趋势，就是主机的制造企业逐步向组装企业方向发展，配套件由供应商提供。没过的凯斯、卡特彼勒，瑞典的沃尔沃登时世界上实力最强的主机制造企业，气配套件的配套能力也非常强，数量上也是逐年大幅的增长，配套件主要有零部件制造企业来提供。
在科技大爆炸的今天，计算机技师、网络技术、通信技术等现在信息技术对人类的生产生活长生了前所未有的影响。这也是今后制造业的发展，设计方法和制造方法模式的改变指明了方向，为数字化的设计资源与制造资源的远程共享，提高产品效率奠定了基础。目前，在液压领域中，特别是中小企业在就你想液压传动系统的设计时，存在零部件种类繁多、系统集成复杂、参考文献缺乏等一系列困难，而远程设计服务可以解决这些问题。
关键词： 工程机械； 机床； 机械传动； 冶金
 
 
Abstract
The 1950 s I a hydraulic industrial began, hydraulic components and machine tool equipment used for forging early on. 60 s have a further development, steals the various industrial department's, engineering machinery, metallurgy, machine tools, automotive industry etc have been widely used. Now to high pressure hydraulic system technology, high speed, high efficiency, high integration development direction. Meanwhile, new components of the computer simulation and optimization should work, also got outstanding achievements.
 Mechanical engineering major fittings to have power transmission components, $hydraulic components and electrical components, etc. Internal combustion engine is the type diesel power engineering machinery components of its this used to: drive into the mechanical transmission, and hydraulic transmission machinery, etc. Hydraulic mechanical transmission is now the most commonly used. Hydraulic pump and hydraulic elements are mainly cylinder, seal and hydraulic accessories.
Current. I have also set up hydraulic parts from the low pressure to high pressure formation series. I machinery industry and introduction to absorb new technology is conducted on the basis of good research, live with the international standard of hydraulic products. And further optimize their industrial structure, get better performance products meet the national standards. Foreign engineering machinery fittings of the body in the production of a television, mature technology, production concentration is high, the brand effect is prominent. The host and fittings things influence each other and promote each other. At the moment, the foreign engineering machinery accessories development situation is better.
Recent years foreign engineering machinery is a trend, and is host of manufacturing enterprises gradually to the assembly enterprises development direction, fittings by the supplier. The case didn't, caterpillar, Sweden's Volvo world connection the strongest of host manufacturing enterprise, gas fittings are very strong ability of form a complete set, on the amount is year after year sharp growth, fittings mainly parts manufacturing enterprise to provide.
In science and technology of the big bang today, computer technician, network technology, the communication technology and information technology on human now production and life of the influence of the unprecedented longevity. This is also the development of the manufacturing industry in future, the design methods and manufacturing methods model of change pointed out the direction for the design of the digital resources and manufacturing resource remote Shared, and improve the efficiency of the products to lay the foundation. At present, in the hydraulic field, especially small and medium-sized enterprises in it you want to hydraulic transmission system design, auto parts various kinds and system integration complex, lack of reference, a series of difficulties, and remote design services can solve these problems.
Key words:  engineering machinery ;machine tool;mechanical drive;metallurgy