液压

1 For water out of hydraulic system: adopt blocking and draining methods, unique draining structure is designed at the guide sleeve of the piston rod in pumping oil cylinder, which makes the water leaked into the scraper seal converging in the waterspout and drained through the osculum, thus avoiding the water getting into hydraulic system through the seal.

对于液压系统外水分：采取堵，排共施的策略，在泵送油缸活塞杆导向套处 2009 年第 1 版( The first edition in 2009) 18 HBT60.13.90S HBT60.13.90SC 设计有独特的排水结构，其可将渗入防尘圈的水汇聚于排水槽内并通过排水孔排出，从而避免了水分通过后面的密封进入液压系统，做到将水分拒之于系统之外。

This design topic is the Design of Lifting Mechanism for ZYD 600SB Hydraulic Static pile Driver .it mainly includes three partial contents: Host computer design, hydraulic system design, control section design.

摘 要 ：本次设计的题目是ZYD600SB 液压静力压桩机的升降行走机构的设计，它主要包括三个部分的内容：主机的设计，液压系统的设计。

However, the ocular of hydraulic systems working condition is bad. It is difficult to obtain the parameter of hydraulic system. The fault of hydraulic system has pilosity nature, uncertainty and disguise. The fault sign and the fault reason of hydraulic system have complex non-linear mapping relations, therefore it cannot use the simple functional relation to describe. This has brought the difficulty for the classics fault diagnosis technology. The intelligent diagnosis technology base on ANN and ES can solove the above problem well and the diagnosis result is more accurate and reliable.

但是，液压系统工作状况直观性差，参数不易获取，故障具有多发性、不确定性和隐蔽性；液压系统故障征兆与故障原因之间存在复杂的非线性映射关系，不能用简单的函数关系来描述，给经典故障诊断技术带来了困难，而基于神经网络和专家系统的智能诊断技术很好的解决了上述问题，使诊断结果更加准确可靠。

It provides theoretical basis for designing flow divider pintle in ball piston pump with high efficiency and lays a foundation for further study of ball piston elements with high power density.

为高效球塞式液压泵配流副的设计提供了理论依据，同时为高功率密度球塞式液压元件的深入研究打下了基础。

Focus on pneumatics and hydraulic test process, Support production line to do process failure analysis and product diagnostic.

负责机械组装线的气动及液压测试工艺，生产过程中的失效原因分析及解决；产品功能的液压诊断分。

I plant was built in 1993, has assets of 10 million yuan, more than 300 workers, engineering and technical personnel 36 people, specializing in the production of hydraulic power block brake products and hydraulic power to promote family products, existing production in more than 10,000 Taiwan Production capacity, the products are exported to over 30 provinces and cities, praised by customers.

我厂始建于1993年，拥有资产1000万元，职工300余人，工程技术人员36人，专业生产电力液压块式制动器系列产品和电力液压推动器系列产品，现有年生产万余台的生产能力，产品远销全国30多个省市，深受客户好评。

The weighing hopper under the stock house are hydraulic driven, which is supplied by an independent hydraulic power pack.

称重料斗下家股票都是液压驱动的，这是由一个独立的液压动力包。

The hydraulic system is used to set,release and pretest the dual packer and pretest the target interval for ...

该液压控制系统在功能及结构等方面与常规的液压控制系统相比有明显不同。

During the ordinary modeling process of first order hydraulic system, some principal diagonal elements of mass matrix were zero, and the stiffness matrix was nonsymmetrical.

建立以界面信息形式表达的一阶液压均衡系统动力学方程，同时利用卷扬系统动力学方程，首次建立机械卷扬-液压均衡子系统动态耦合的数学模型。

A general mathematic model of lifting subsystem and hydraulic balancing subsystem was set up by using correspond relation of the force and the displacement at the interface of lifting and hydraulic system, then the question that the principal diagonal elements of mass matrix were zero is resolved. Meanwhile the effect on the general dynamic characteristic of ellipticity of is considered.

通过卷扬系统与液压系统在界面耦合处的力和位移协调关系，建立诸如M〓+C〓+KX=F形式的机械卷扬-液压均衡系统综合数学模型，模型中考虑了卷筒椭圆度偏差以及直径偏差对整体动态性能的影响，解决了耦合后数学模型质量矩阵主对角线元素奇异的问题。

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。