液压

There are numerous hydraulic elements used on construction machinery.Some combined bores in hydraulic elements are small but machining accuracy is high,making it difficult to measure them and machine by commonly lathing.

工程机械所采用的液压元件种类较多，其中一些液压元件上的复合孔尺寸较小，加工精度要求高，测量困难，在车床上采用车削方法很难加工。

Take the new-type of tyre-bulldozer GJT112 as example,analyzed the content of this machine fluid-system leakiness forms.

以GJT112新型轮胎式推土机为例，分析了液压系统泄漏形式，产生的主要部位及原因，内泄漏的故障机理和泄漏故障的诊断方法，最后重点论述了液压系统泄漏故障预防与控制的方法和对策。

On the basis of the data base of powered support, this paper presents a useful kinematic analystical method of powered support's lemniscate linkages with one-dimension optimum method (the 0.618method), and a related compu -ter programme is worked out.

本文在液压支架主要结构尺寸数据库的基础上，研究了以支架任意工作高度H为自变量，以一维优化法(Q.618法)为依据的液压支架四连杆机构运动学分析的实用方法。

Of letters patent Win the national practical new-type patent certificate No.

黄岩永丰电动液压厂是生产电动液压工具的专业工厂。

This paper introduces design method for hydraulic lock system using fuzzy reliability design to make the design more accurate and reliable,a practical example is shown.

介绍了液压锁紧系统的模糊可靠性设计计算方法，使液压锁紧系统的性能设计更准确可靠，并给出了设计实例。

By analyzing the dynamic coupling process of looper system and using the mathematical models of hydraulic cylinder and servo valve, a dynamic mathematical model of hydraulic looper system was built at the vicinity of the working point.

通过对活套系统动态耦合过程的分析，在工作点附件，结合伺服阀和液压缸的模型，建立起液压活套系统的动态数学模型。

I am newcome, what safeguard now is (Http://www.yyjx.org.cn of mechanically-laid web of Chinese hydraulic pressure and Http://www.yeyawang.org.cn) of net of Chinese hydraulic pressure, be ranked in Baidu and collect good all the time.

我是新来的，现在维护的是(中国液压机械网http：//www.yyjx.org.cn和中国液压网http：//www.yeyawang.org.cn)，在百度排名和收录都一直良好。

The new series of HPC cone crusher with high-efficiency and hydraulic pressure equipment is adopted three protecting equipment such as protecting oilcan, locking oilcan and hydraulic driving oilcan.

1 ，一系列新的高性能圆锥破碎机的高效率和液压设备是通过了三项保护设备，如保护油罐，锁定油罐和液压驱动油罐。

It has 49 sets main equipment and various special equipment to make hydraulic products, such as extended horizontal lathe, extended horizontal grinder, oilstone grinder, hydraulic machine, and test devices.

该厂拥有49套主要设备和各类特种设备用于生产液压产品，如加长卧式车床，加长卧式磨床，油石磨床，液压机械和测试装置。

Hydrostatic transmission is widely used in construction machine. The research of one of its hard cores, low speed high torque radial piston motor, is very important. To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. The research is divided into four parts:1 Taken all forces the piston endured into consideration when radial piston motor working, the force between roller and orbit is deduced.

静压传动技术在各类工程机械中得到广泛的应用，对作为其核心部件的径向柱塞式低速大扭矩液压马达的研究显得十分重要，为了能直接对这种马达进行寿命估计，并能在相同工况下求得寿命最长的轨道曲线，本文从设计等接触应力内曲线的角度对这类马达作探讨性的研究，主要从以下四个方面进行：(1)综合考虑径向柱塞式液压马达工作时的各种主要受力状况，对柱塞组件进行受力分析，并通过仿真分析影响轨道和滚动体间正压力的各个因素，得到正压力的简化表达式。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。