介绍一种能够在工程机械液压系统中改变两个定量马达连接方式的液控换向阀。
The author introduces a kind of hydraulically controlled direction valve to change the connecting mode between two fixed displacement motors in hydraulic systems of construction machinery.
本文分析了工程机械液压系统中叶片泵失效的原因，并提出了相应的预防措施。
This article deals with the reasons for blade-pump's failure in hydraulic circuit and puts forward corresponding counter plot.
同时本文的研究成果对其他工程机械液压系统的故障诊断也有一定的应用价值。
The research results of this paper is also propitious to the other fault diagnosis of hydraulic system of construction machinery and equipment.
作为工程机械液压系统核心元件之一，其性能的好坏，直接决定着整机的技术水平。
As one of core components in the hydraulic system of construction machine, the performance of multi-way valve decides the level of the whole machine.
因此，采取有效措施去除油液污染物，尤其是固体污染物，是保证工程机械液压系统正常工作的前提。
Therefore, to take effective measures to remove the oil pollution, especially of solid pollutants, is the guarantee of construction machinery hydraulic system a prerequisite for normal work.
为了提高工程机械液压系统的使用效率和可靠性，提出了一种基于嵌入式系统平台在线状态监测与故障诊断系统。
The paper presents an on-line condition monitoring and diagnosis system based on embedded system, which can improve the efficiency and reliability of hydraulic system for engineering machinery.
论文提出了实施性工程机械液压系统实时诊断的系统框架，在此基础上创建故障数据库模型框架及故障诊断模型框架；
The practicable frame of real-time fault diagnosis for heavy machinery is built in this paper, for the meantime, the model of fault database and the model of fault diagnosis are done too.
安装或修改飞机发动机，机械，液压，飞行控制，燃油和气动系统。
Install or modify aircraft engines and mechanical, hydraulic, flight control, fuel and pneumatic systems.
熟悉液压系统，气动元件，电磁阀，及机械传动系统，了解PLC控制原理。
Familiar with hydraulic systems, pneumatic components, solenoid valves, and mechanical drive system, understand PLC control theory.
矫直工在交接班时先检查机械紧固件和液压传动系统，操作手柄及按钮能否正常。
The straightening machine checks the mechanical fasteners and the hydraulic transmission system during the shift, the operation handle and button can be normal.
并以此为基础，通过一个典型的船舶机械液压传动系统，推导出全信息方程来确定最佳的监测点和故障位置。
On these bases, this paper deduces the full information equation to determine the best monitoring points and fault position by a typical shipping mechanical HTS.
蓄能器充液阀是一种用于工程机械及矿山无轨设备制动液压系统的关键液压元件。
Accumulator charging valve is key unit used in hydraulic braking system of engineering machinery and rubber tyred equipments for mines.
直流电动机工作电源装置的液压系统中的工程机械，主要是配合液压泵。
DC motors work as power device of the hydraulic system in the project machinery, mainly matched with hydraulic pump.
如果液压系统或者电源出现故障，应急放出系统会靠重力机械地放出起落架。
An emergency extension system extends the gear mechanically if hydraulic or electrical power is lost.
飞机机械师维护，修理，大修，修改和测试飞机的结构，机械和液压系统。
Aircraft mechanics maintain, repair, overhaul, modify and test aircraft structural, mechanical and hydraulic systems.
对于当前全液压系统在工程机械中的应用进行了尝试和探索，对于同类型产品的设计具有一定的指导作用。
The application of the full hydraulic system in the engineering machine is attempted, All these offer reference for design of the same type of product.
当液压伺服系统用于机械传动的校正机构时，显得调整时间长，超调量大，校正精度不高。
When used in correction mechanism of mechanical drive, hydraulic servo system manifests a long time of overshoot, large overshoot and poor correction accuracy.
该油可同时满足大功率拖拉机和工程机械传动-液压系统的使用要求。
This oil can be used in both transmission and hydraulic system in high-power tractors and engineering machinery.
本文对进口工程机械液压传动与控制系统中，橡胶密封件的研制，提出了一个简捷而实用的办法。
In this paper, an easy and practical method to develop the rubber seal replacement for hydraulic transmission and control system in imported construction machines is presented.
液压油黏度、容积效率和液压系统工作效率均下降，泄漏增加，甚至使机械设备无法正常工作。
The hydraulic fluid viscosity, the volumetric efficiency and the hydraulic system working efficiency drops, divulging increases, even causes the mechanical device to be unable the normal work.
机械设备液压系统的故障表现形式多种多样，而故障的产生是多种因素综合作用的结果。
The fault form in mechanical equipment hydraulic system is various, fault is the result of various factor comprehensive action.
液压机械传动系统的设计过程，首先是一个传动系统的设计过程。
The design of transmission system for Hydraulic machinery is different from other traditional design.
其中，机械系统由试验台架、液压加载泵站、试验介质增压保压装置和传感器等部件组成；
The mechanical system is composed of testing mechanical assembly, hydraulic loading pump station, pressure increasing and holding device for tested media, and sensors.
应用机械振动理论，对液压抽油机系统的动力特性进行了分析。
The dynamic analysis of hydraulic pumping systems was carried out in this paper by using the theory of mechanical vibrations.
介绍了液粘软启动装置的传动机理、机械结构、液压系统和控制理论。
This paper introduces the viscous soft start device and its driving mechanism, mechanical structure and the theory of hydraulic system and control.
8型多路阀还可以应用于其它工程机械的液压系统中。
The model DL-8 multiple directional valve can also be used in hydraulic systems in other engineering machinery.
最后以液压-机械复合传动系统为例，验证方法的有效性。
An example of compound hydraulic and mechanical transmission system is given to validate the effectiveness of the method.
本文所依托的课题的模型及软件现已成功应用于中国第二重型机械集团公司对于弯辊液压系统的设计分析之中。
The model and the software depending on the applied subject were applied to design and analyze of hydraulic bending roller control system in China National Erzhong Group Co.
该装置由机械部分与液压系统组成。
The device consists of mechanical parts and hydraulic system components.
该装置由机械部分与液压系统组成。
The device consists of mechanical parts and hydraulic system components.
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