首先，建立了阀控非对称缸位置控制系统与力控制系统的数学模型。
At first, it studied the plant model of position and force system about valve control unsymmetrical hydraulic ram.
所有的流体系统将用空气进行操作运行，以对管路系统中的所有泄露情况进行检查，液压缸和阀同样也要进行手动操作。
All fluid systems should be operated and air removed from systems and checked all leaks in piping systems. Cylinders and valves also should be operated manually.
液压系统采用了先进的二通插装阀系统、进口高性能的电子泵技术，实现了主缸压力与流量的双闭环控制；
The press takes use of advanced two-way cartridge valve system and imported electric pump technology which can realize double closed loop control of pressure and flow rate.
说明内泄出自动臂缸的控制阀及锁死平衡阀。
Note automatic leak control arm cylinder valve and locked balance valve.
因此该系统与利用滑板缸有杆腔的液压力的方案相比，液压力得到了充分的利用，另外通过采用自锁型顺序阀，减少了能量损失，使得系统的效率得到了提高。
So the system can fully utilize the hydralicpower, otherwise the use of the lock sequence valve reduces the loss of energy, and improves the efficiency of the system.
对船用舵机泵控系统中位置控制单元的三通阀控制非对称缸和四通阀控制对称缸的两种设计方案进行了理论分析和系统结构分析。
Two design strategies that three-way valve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects.
排泥阀产品由液压缸和角式截止阀组合而成，液压缸内动力带动瓣升降，使阀体通道开或闭，以达到流体通断。
Mud valves and Angle by the hydraulic cylinder type combination valve, hydraulic power drive cylinder valve lift, the valve open or closed channel, in order to achieve the fluid off.
本系统知识库庞大，包括常见的29 种故障现象，涵盖了液压泵、液压阀、液压缸、管路、液压辅件等160 余条故障信息。
This system has huge database contain familiar 29 fault phenomenon, overlay hydraulic pump, hydraulic valve, hydraulic urn, pipeline and hydraulic accessory 160 piece of fault information etc.
阀控非对称缸由于结构简单、空间体积小，广泛地应用于液压伺服系统中。
Because of the simple structure and small spatial volume, valve controlled asymmetric cylinder is widely applied in hydraulic servo system.
对液压部分进行了主要元件如主泵、阀和液压缸的主要参数进行了匹配计算，并对系统的一些主要静态指标进行了计算。
Specification matching calculations are made for the main hydraulic components such as the main pump, valves and oil cylinder and some main static specifications in the system are also calculated.
对称四通阀控对称液压缸的分析结果对对称四通阀控非对称液压缸动态特性研究已不适用。
It is unsuitable to research dynamic characteristics of asymmetric cylinder controlled by symmetric four-way valve using the result of symmetric cylinder controlled by symmetric four-way valve.
应彻底清洗所有和物料接触的部件，包括活塞缸、活塞头、O型圈、单向阀、灌装头、料桶、料斗等，发现破裂损伤的密封应及时进行更换。
Thoroughly clean all parts exposed to material, including piston barrel, piston head, O-ring, one-way valve, filling head, feeding tank, hopper, etc. Damaged seal shall be immediately replaced.
以测试冻土冻胀的力学行为为研究背景，设计了一套基于阀控非对称缸的液压力控制系统。
By regarding testing mechanics behaviors of frozen soil frost heave as the research background, a hydraulic force control system was designed on the basis of valve control asymmetric cylinder.
VRP120型液控单向阀用于锁紧单作用液压缸。
VRP120 single acting pilot check valves lock a single acting cylinder.
液力端主要由液缸、吸入、排出阀总成、吸入、排出弹簧、吸入管、柱塞、盘根、安全阀、稳压器等部件组成。
Fluid end consists mainly of module, suction and discharge valve assembly, suction and discharge spring, suction and discharge pipe, plunger, packing, safety valve and pressure regulator, etc.
在位置闭环控制中比例伺服阀控制伺服缸，解决了控制精度低的问题。
Position closed-loop control was used to control the position of servo hydraulic cylinder to improve control accuracy.
通过由电磁阀组成的控制单元，控制注入步进缸的流量，使缸外套作步进运动，拖动中子吸收元件；
The outer tube of the cylinder will be moving step by step by controlling flow, driving the neutron absorber and controlling nuclear reaction.
基于阀控缸数学模型，结合管道效应理论，建立了蓄能器不考虑其连接管路的数学模型；
Refered the mathematical model of valve-controlled cylinder, accumulator's mathematical model without regard to its connecting line is generated in this paper.
试验表明，钻井泵泵阀和缸套经增碳-钒化处理后其使用寿命显著延长。
Test shows that the service life of the drill pump valve and liner after carburizing and vanadiumizing are greatly extended.
本文针对比例阀缸系统，提出了用理想曲线实现液压缸的全行程任意点的缓冲定位问题。
Based on a proportional valve-hydraulic cylinder system, this paper puts forward the problem of implementing cushioning and positioning at any point in full-stroke by using ideal curve.
像总泵、车轮、转向液压缸、微动阀、连杆、门架滚轮、转向桥等部位，只要靠紧固进行调整就能修理的故障。
Failures which can be solved by minor adjustment on brake pump, wheel, steering hydraulic cylinder, and micro-valve, connect level, mast roller, steering axle, etc. are excluded.
为了能有效地利用此阀之特性，此阀应直接安装在气压缸之气口上，对于提高气压缸运动速度的效果尤为明显。
To take the best effectiveness of this valve, it is recommended to be installed at the air port of the pneumatic cylinder, this will remarkably increase the speed of the cylinder.
在比例方向阀控缸气动位置伺服系统中，置中电压是影响控制精度的重要因素之一。
In pneumatic position servo system with proportional directional control valve and control cylinder, the centre adjust emt voltage is one of the important factors that influence control precision.
建立了伺服阀控非对称缸的理论模型。
Mathematic models of servo valve controlling asymmetrical cylinder hydraulic system are established.
针对阀控缸系统的摩擦力对系统控制性能造成的不良影响，提出了一种新的减小摩擦力影响的补偿方法。
The friction mechanism of the valve-controlled cylinder system and the adverse effect of friction on the system control performance were analyzed.
本公司主要生产缸、泵、阀液压件铸件。
Our main products is castings used in cylinder , pump and valve etc.
泵的置有吸入阀和排出阀、泵缸、缸套和拉杆的一侧。
The side of a pump where the suction and discharge valves, pump cylinders, liners, and rods are located.
每个气体调节器包括可密封阀，所述阀限定输入和输出，且每个阀包括具有活塞缸和活塞杆的活塞。
Each gas regulator includes a sealable valve that defines an input and an output, with each valve including a piston having a cylinder and a rod.
给出了根据负载轨迹确定伺服阀的最大空载流量、缸的有效面积以及油泵流量的方法。
This paper puts forward a new method of determining the greatest no_ load flow rate for servo valve, selecting effective area and defining flow rate for a pump according to load locus.
给出了根据负载轨迹确定伺服阀的最大空载流量、缸的有效面积以及油泵流量的方法。
This paper puts forward a new method of determining the greatest no_ load flow rate for servo valve, selecting effective area and defining flow rate for a pump according to load locus.
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