3500HP型钻井泵液力端的研究与展望

张洪生，褚正宾

（兰州理工大学机电工程学院，甘肃兰州730050）

摘要： 随着科技的发展和进步，石油、天然气和页岩气等能源已成为全球所有国家的命脉。然而想要拥有足够的能源，就必须具备先进的开采技术，因此钻井泵的发展尤为重要。钻井泵被誉为钻机的“心脏”，对于钻机来说至关重要，而对于钻井泵来说其液力端易损件的使用寿命与钻井泵的工作效率和使用寿命息息相关，因此只有提高钻井泵液力端易损件的使用寿命才能确保钻井泵的正常钻进、较高的工作效率和使用寿命。随着信息技术的发展和各行各业的相互促进与相互影响，在未来钻井泵也会向着信息化、自动化、轻量化、人性化和智能化的方向发展。

关键词： 钻井泵液力端；使用寿命；工作效率；人性化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0001-04

Research and Prospect on the Hydraulic End of 3500HP Drilling Pump

ZHANG Hong-sheng, CHU Zheng-bin

(School of Mechanical Engineering, Lanzhou University of Technology, Lanzhou730050, China)

Abstract:  With the development and advancement of technology, energy has become the lifeblood of all countries in the world, such as oil, natural gas and shale gas. However, in order to have sufficient energy, advanced mining technology is required, so the development of drilling pumps is particularly important. The drilling pump is known as the “heart” of the drilling rig, which is very important for the drilling rig. For the drilling pump, the service life of the hydraulic end consumables is closely related to the working efficiency and service life of the drilling pump, so only the drilling is improved. The service life of the fluid end of the pump can ensure the normal drilling of the drilling pump, high working efficiency and service life. With the development of information technology and the mutual promotion and mutual influence of various industries, in the future, drilling pumps will also develop in the direction of informatization, automation, lightweight, humanization and intelligence.

Key words: hydraulic end of drilling pump; service life; work efficiency; humanization

军工企业转型研究——美国穆格公司

景晨思¹，柏萌峤¹，朱俊²，赵守军²，陈军²

（1.北京航天长征科技信息研究所，北京100076； 2.北京精密机电控制设备研究所，北京100076）

摘要： 美国穆格公司最初为导弹部件的设计及供应商，主要产品为伺服阀，公司从产品单一的军工企业发展到具有多个分公司的大型企业，是“企业转型”发展的成功典范。该文从企业结构调整、企业收购情况以及财务变化等多方面对穆格公司进行了分析，总结了公司的经营模式以及转型策略，以期为军工企业转型提供借鉴。

关键词： 伺服阀；军工企业；转型策略

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0005-06

Research of Military Enterprises Transformation—Moog Company

JING Chen-si¹, BAI Meng-qiao¹, ZHU Jun², ZHAO Shou-jun², CHEN Jun²

（1. Beijing Aerospace Changzheng Institute of Science and Technology Information, Beijing100076, China;

2. Beijing Institute of Precision Mechatronics and Controls, Beijing100076, China）

Abstract:  Moog Company originally designed and supplied missile components. The main products are servo valves. The companys development from a single military enterprise to a large enterprise with multiple branches is a successful example of the development of “enterprise transformation”. This paper analyzes Moog Company from the aspects of enterprise structure adjustment, enterprise acquisition and financial changes, and summarizes the companys business model and transformation strategy, in order to provide reference for the transformation of military enterprises.

Key words: servo valve; military enterprises; transformation strategy

基于MATLAB-AMESim的液压缸位置伺服系统

辨识方法研究

麻玉川

(西安航空职业技术学院自动化工程学院，陕西西安710000)

摘要： 基于传统液压缸伺服系统建模参数的复杂性、不确定性、以及系统的时变性等问题，提出了一种基于MATLAB-AMESim的液压缸位置伺服系统辨识方法。该文以组成足式机器人驱动单元的液压缸为研究对象，简单介绍了液压缸的组成结构及工作原理；其次建立液压缸控制系统模型、传递函数，阐述了液压缸伺服系统辨识方法原理和基本过程；最后，通过MATLAB-AMESim软件搭建单缸位置伺服系统进行系统辨识仿真，将仿真结果与实际液压缸位置伺服系统测试结果进行对比。实验表明基于MATLAB-AMESim的液压缸位置伺服系统辨识仿真具有良好的实用性，验证了系统模型辨识方法的有效性。

关键词： 液压缸；建模仿真；系统辨识；MATLAB-AMESim

中图分类号：TH137;TP24文献标志码：A文章编号：1008-0813（2020）02-0010-06

Research on Identification Method of Hydraulic Cylinder Position Servo

System Based on MATLAB-AMESim

MA Yu-chuan

(Xian Aeronautical Polytechnic Institute, School of Automation Engineering, Xian710000, China)

Abstract:  Based on the complexity, uncertainty and time-varying of the modeling parameters of the traditional hydraulic cylinder servo system, a method for identifying the position servo system of hydraulic cylinder based on MATLAB-AMESim is proposed. In this paper, the structure and working principle of the hydraulic cylinder are briefly introduced by taking the hydraulic cylinder which is the driving unit of the foot robot as the research object, and secondly, the model and transfer function of the hydraulic cylinder control system are established, and the principle and basic process of the identification method of the hydraulic cylinder servo system are expounded. Finally, Through the MATLAB-AMESim software to build a single-cylinder position servo system for system identification simulation, the simulation results and the actual hydraulic cylinder position servo system test results are compared. Experiments show that the identification simulation of hydraulic cylinder position servo system based on MATLAB-AMESim has good practicability, and the validity of the system model identification method is verified.

Key words: hydraulic cylinder; modeling simulation; system identification; MATLAB-AMESim

转速对齿轮泵内流场空化强度的影响

强彦^1,2，王文安¹，罗小梅³，项可¹，魏列江^1,2

(1.兰州理工大学能源与动力工程学院，甘肃兰州730050；

2.兰州理工大学甘肃省液压气动工程技术研究中心，甘肃兰州730050；

3.北方车辆研究所，北京100071)

摘要： 针对齿轮泵中齿轮转速在500~3652 r/min的变转速条件下工作的实际工况，该文通过实验的方法研究了转速对某型齿轮泵内流场空化强度的影响。使用现有的齿轮泵测试实验台，对在齿轮泵转速改变的条件下，齿轮泵内流场的空化强度改变进行监测。由于空化无法直接测量，该文根据空化诱导振动理论对齿轮泵的振动进行测量，得到了齿轮泵内流场空化强度随齿轮转速上升而增强的规律。通过Pumplinx软件对内流场进行建模，利用软件特有的空化损伤模块进行了仿真验证，仿真结果表明齿轮泵内流场空化强度随齿轮转速上升而增强，与实验所得规律一致。本文所总结的规律对减弱齿轮泵内流场空化强度，提升使用寿命具有一定的参考作用。

关键词： 齿轮泵流场；空化；振动实验；Pumplinx

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0015-05

Effect of Rotating Speed on Gear Pump Flow Field

Cavitation Intensity

QIANG Yan^1,2, WANG Wen-an¹, LUO Xiao-mei³, XIANG Ke¹, WEI Lie-jiang^1,2

（1. Lanzhou University of Technology, College of Energy and Power Engineering, Lanzhou730050, China;

2. Lanzhou University of Technology, Gansu Hydraulic Pneumatic Engineering Technology Research Center,

Lanzhou730050, China; 3. China North Vehicle Research Institute, Beijing100071, China）

Abstract:  Aiming at the actual working conditions of the gear speed in gear pump under the variable speed of 500 r/min~3652 r/min, the influence of the rotational speed on the cavitation intensity of the flow field in a gear pump is studied by the experimental method. Using the existing gear pump test bench, the cavitation intensity change of the flow field in the gear pump is monitored under the condition that the gear pump speed is changed. Since the cavitation cannot be directly measured, the vibration of the gear pump is measured according to the cavitation induced vibration theory, and the law that the cavitation intensity of the flow field in the gear pump increases with the increase of the gear speed is obtained. The internal flow field was modeled by Pumplinx software, and the simulation was verified by the software-specific cavitation damage module. The simulation results show that the cavitation intensity of the flow field in the gear pump increases with the increase of the gear speed, which is consistent with the experimental results. The laws summarized in this paper have a certain reference role in reducing the cavitation intensity of the flow field in the gear pump and improving the service life.

Key words: gear pump flow field; cavitation; vibration experiment; Pumplinx

喷挡阀零位间隙有关的结构参数分析及其

对阀动静态性能的影响

何汉林

（穆格控制系统（上海）有限公司，上海200120）

摘要： 该文通过对与喷嘴和挡板间隙值有关参数的推导，揭示了间隙值对双喷挡流量伺服阀动静态性能的影响：包括对静耗流量、分辨率、滞环以及动态特性的影响。最后用实验进行了验证，为设计和维修该类型伺服阀提供了理论指导。

关键词： 伺服阀；喷嘴；挡板；间隙；动静态

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0020-04

Analysis of Parameters Related to Zero Gap of Flapper Valve and Its Effect on

Dynamic and Static Performance

HE Han-lin

(MOOG Control System (Shanghai) Ltd., Shanghai200120, China)

Abstract:  Based on the derivation of the parameters related to the gap between the nozzle and the flapper, this paper reveals the influence of the gap on the dynamic and static performance of the flapper servo valve, including the influence on the static loss flow, threshold, hysteresis and dynamic characteristics. Finally, it is verified by experiments, which provides theoretical guidance for the design and maintenance of this type valve.

Key words: servo valve; nozzle; flapper; gap; dynamic and static

基于AMESim的减压阀建模与仿真分析

蔡文龙¹，周艳²，贾首星²，韩会敏¹，温相源¹

（1.石河子大学机械电气工程学院，新疆石河子832000；

2.新疆农垦科学院，新疆石河子832003）

摘要： 在分析先导式减压阀结构及工作原理基础上，运用AMESim中的HCD液压元件库和机械库对减压阀进行建模，按照阀的相关数据设置子模型和参数，进行仿真分析。并讨论了影响减压阀的几个因素，通过对减压阀的阀芯位移、输出流量、弹簧预紧力和阻尼孔直径四个参数的分析，获得了各个参数对减压阀的影响规律。通过调节减压阀仿真模型的各个参数，来验证模型的正确性，为减压阀在实际运用中提供理论依据。

关键词： 减压阀；AMESim；建模；仿真分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0023-04

Modeling and Simulation Analysis of Pressure Reducing Valve Based on AMESim

CAI Wen-long¹, ZHOU Yan², JIA Shou-xing², HAN Hui-min¹, WEN Xiang-yuan¹

（1. School of Mechanical and Electrical Engineering, Shihezi University, Shihezi University, Shihezi832000, China；

2. Xinjiang Academy of Agricultural Sciences, Shihezi832003, China）

Abstract:  Based on the analysis of the structure and working principle of the pilot-operated pressure reducing valve, the HCD hydraulic component library and mechanical library in AMESim are used to model the pressure reducing valve, and the sub-model and parameters are set according to the relevant data of the valve for simulation analysis.Several factors affecting the pressure reducing valve are discussed. Through the analysis of the four parameters of the spool displacement, output flow, spring preload and diameter of the pressure reducing valve, the influence of each parameter on the pressure reducing valve is obtained.By adjusting the parameters of the pressure reducing valve simulation model, the correctness of the model is verified, which provides a theoretical basis for the practical use of the pressure reducing valve.

Key words: pressure reducing valve; AMESim； modeling； simulation analysis

轴向柱塞泵降噪分析与研究

熊文才,苗蕾,陈经跃

（航空工业西安飞行自动控制研究所，陕西西安710065）

摘要： 轴向柱塞泵在某平地机装机试用过程中出现啸叫的现象，通过原型泵和故障泵噪声对比测试分析，判断柱塞泵噪声异常是由于配流盘过渡区采用小孔阻尼引起的。根据对配流盘的计算分析、CFD仿真，认为配流盘过渡区小孔阻尼结构会导致柱塞腔较大的压力冲击，从而产生较大的流体噪声。将配流盘过渡区小孔结构改进为三角槽结构后，降噪效果得到显著的改善。

关键词： 轴向柱塞泵；配流盘；噪声；声压级

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0027-04

Noise Reduction Analysis and Research of Axial Piston Pump

XIONG Wen-cai, MIAO Lei, CHEN Jing-yue

(AVIC Xian Flight Automatic Control Research Institute, Xian710065, China)

Abstract:  The screaming phenomenon of axial piston pump appears in the course of using the grader, through the original pump and the fault pump noise comparison test analysis, it is concluded that the abnormal noise of piston pump is caused by the small orifice damping of the transition zone of valve plate. According to the calculation and analysis of the valve plate, CFD simulation, the orifice damping structure in the transition zone of valve plate will lead to the pressure impact and bog fluid noise of the piston cavity. The orifice was changed into triangular groove structure, the noise was significantly improved.

Key words: axial piston pump; valve plate; noise; sound pressure lever

基于专家经验法的机械密封基本事件失效概率

分析方法

丁思云，李香，沈宗沼，李凤成，吴萍，吴兆山

（合肥通用机械研究院有限公司机械工业机械密封工程技术研究中心，安徽合肥230031）

摘要： 该文针对在缺失大量失效统计数据时获得机械密封失效概率非常困难的状况，采用专家经验法对机械密封发生失效的基本事件进行定性判断，并采用模糊集理论，对专家给出的机械密封失效基本事件的失效概率进行定量分析，综合判断机械密封失效的基本事件的发生概率，获得基于专家经验法分析机械密封基本事件失效发生的概率值，指导机械密封的故障诊断，获得机械密封可靠性评估的基础数据。同时该方法可为研究机械密封可靠性提供一种研究思路。

关键词： 机械密封；失效分析；专家经验法；模糊集理论；失效概率

中图分类号：TB42；TH136文献标志码：A文章编号：1008-0813（2020）02-0031-05

Failure Probability Analysis Method of Mechanical Seal Basic

Events Based on Expert Experience Method

DING Si-yun, LI Xiang, SHEN Zong-zhao, LI Feng-cheng, WU Ping, WU Zhao-shan

(Hefei General Machinery Research Institute Co., Ltd., Machinery Industry Mechanical Seals Engineering

Research Center, Hefei230031, China)

Abstract:  In view of the fact that it is very difficult to obtain the failure probability of mechanical seals when a large number of failure statistics are missing, this paper uses expert experience method to qualitatively judge the basic events of mechanical seals failure, and uses fuzzy set theory to quantitatively analyze the failure probability of the basic events of mechanical seals failure given by experts. The probability of basic events of mechanical seals failure is judged synthetically. And the probability value of failure occurrence of mechanical seals based on expert experience method is obtained. This can guide the fault diagnosis of mechanical seals, and provide datas for reliability evaluation of mechanical seals. This method can provide a research idea for dealing with the reliability of mechanical seals.

Key words: mechanical seal; failure analysis; expert experience method; fuzzy sets; failure probability

刹车液压系统压力反冲问题分析及措施

杨莎

（航空工业西安飞机工业（集团）有限责任公司,陕西西安710089)

摘要： 该文介绍了刹车系统的组成及控制原理，根据用户反映的应急刹车系统向正常刹车系统反冲压力问题，分析了问题原因是应急刹车系统单向活门寿命低从而内漏导致。根据故障件分解结果提出可更换单向活门材料提高单向活门寿命解决，根据振动试验及密封试验验证方案可行。

关键词： 应急刹车系统；内漏；压力反冲

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0035-03

Brake System Pressure Recoil Problem Analysis and Measure

YANG Sha

（AVIC Xian Aircraft Industry (Group) Company Ltd., Xian 710089, China）

Abstract:  This paper introduces the composition and control principle of brake system, according to the users reflection of the emergency brake system to the normal brake system, the reason of the problem is that the single-way valve life is low and the internal leakage is low. According to the result of the breakdown of the fault parts, a one-way solution is proposed to improve the one-way valve life

Key words: emergency brake system; internal leakage; pressure retreat

基于AMESim的柱塞泵EP2D控制特性研究

张兴越，刘雨，杨光华

（力源液压(苏州)有限公司，江苏苏州215144）

摘要： 该文简述了A11V变量泵带压力切断的电子控制（EP2D）的工作原理，通过对EP2D变量机构进行分析，建立了柱塞泵EP2D控制的数学模型，得出了调压弹簧刚度、大变量缸截面积、反馈弹簧刚度和流量系数是影响控制稳定性的主要因素，并通过AMESim软件建立了相应的仿真模型进行论证；最后，通过试验论证相关设计参数的正确性。

关键词： EP2D；控制特性；AMESim；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0038-04

Study on EP2D Control Characteristics of Plunger Pump Based on AMESim

ZHANG Xin-yue, LIU Yu, YANG Guang-hua

（Liyuan Hydraulic (SuZhou) Co., Ltd., SuZhou215144, China）

Abstract:  The paper introduces the work principle of the A11V variable pump with the electronic control of pressure cut (EP2D). Through analysis of EP2D variable mechanism, established the mathematical model of plunger pump EP2D control, the main factor that influence the stability of the control include the pressure regulating spring stiffness, large variable cylinder cross-sectional area, the feedback spring stiffness and flow coefficient, and then established the corresponding simulation model based on AMESim software, finally, through the experiment verify the correctness of the related design.

Key words: EP2D; control characteristics; AMESim； study

基于ANSYS及加速寿命试验台对油缸单耳环活塞杆

杆头断裂进行设计改进

李瑞生，李君君，蒋拓，黄仲正，高名乾，林汉华

（柳州柳工液压件有限公司，广西柳州545006）

摘要： 该文对某工程机械油缸单耳环活塞杆杆头断裂进行失效分析，提出了在毛坯锻造工艺满足设计要求的条件下，单耳环活塞杆杆头变截面处应力集中导致残余应力过大，是单耳环活塞杆杆头断裂的主要原因。从这方面出发，优化了单耳环活塞杆杆头变截面处的残余应力，通过ANSYS软件对优化后的结构进行应力分析，并用油缸加速寿命可靠性试验台做2F台架实验和整机多批次小批量试装来验证改进措施的有效性，最终提高了油缸单耳环活塞杆杆头在极限工况下抗疲劳的强度。

关键词： 单耳环杆头；残余应力；应力集中；台架实验；整机实验；变截面

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0042-04

The Design Improvement of the Rod Head Fracture for the Single Earring

Piston Rod Based on ANSYS and Accelerated Life Test Bench

LI Rui-sheng, LI Jun-jun, JIANG Tuo, HUANG Zhong-zheng, GAO Ming-qian, LIN Han-hua

（Liuzhou LiuGong Hydraulic Components Co., Ltd., Liuzhou545006, China）

Abstract:  In this paper, the failure analysis of the rod head fracture of single earring piston rod of an engineering machinery cylinder was carried out. The main reasons for the Fracture of the rod head of the single Earring piston rod is pointed out. The stress concentration at the variable section of the piston rod head of single earring leads to excessive residual stress under the condition that the blank forging process meets the design requirements. From this point of view, the residual stress at the variable section of the single earring piston rod head is optimized. The optimized structure is analyzed by ANSYS software. The effectiveness of improvement measures is verified by the 2F bench test and the multi-batch small-batch test of the whole machine on the accelerated life reliability test bench of the cylinder. Finally, the anti-fatigue strength of the single earring piston rod head under extreme conditions is improved.

Key words: single earring rod head; residual stress; stress concentration; bench test; machine test; variable cross section

浅谈某型机起落架电动应急放系统

朱伟，张婷，高萌

Talking about the Electrical Landing Gear Emergency Release System of a Certain Type

ZHU Wei, ZHANG Ting, GAO Meng

（中航西飞民用飞机有限责任公司,陕西西安710089)

摘要： 起落架应急放系统是飞机一个重要备份系统，在飞机起落架无法正常放下时用于应急放下起落架，避免飞机依靠机腹硬着陆造而成重大损失，可见可靠的起落架应急放系统配置是非常关键的。传统的起落架应急放系统一般由钢索、滑轮组件等组成，需要使用时依靠飞行员人力操作，随着科技的进步，起落架电动应急放系统逐渐应用在了民用客机上，相较于传统的起落架机械应急放系统能够有效减少飞行员的工作负担。该文从起落架应急放系统能源配置分析，到电动应急放系统安全性分析，论证某型机的起落架电动应急放系统，能够满足安全性需求，从而打消因起落架应急放系统由机械到电动升级给飞行员带来的心理顾虑。

关键词： 某型机；起落架；应急放；安全性分析

中图分类号：TH137文献标志码：B文章编号：1008-0813（2020）02-0045-03

液压故障诊断法研究

吴远洪，郑军

（攀枝花钢钒有限公司轨梁厂，四川攀枝花617062）

摘要： 液压传动系统故障存在隐蔽性、复杂性、原因多样性等因素而导致诊断排除困难问题，但液压原理存在一定的功能特点，该文特针对液压原理的一些功能特点展开分析探讨，提炼了液压原理中的通与不通的关系而形成了一种液压故障诊断法；此法广泛运用于液压故障排除工作中而大大提高了工作效率和企业的生产效率。

关键词： 液压系统；通畅性；故障诊断；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0047-03

Research on Hydraulic Fault Diagnosis

WU Yuan-hong, ZHENG Jun

(Rail & Bean Plant of New Steel & Vanadium Co., Ltd., Panzhihua617062, China)

Abstract:  the reason for the hydraulic system failure is hiding complexity diversity caused by factors such as diagnosis rule out difficult problems, but the functions and characteristics of the hydraulic principle, there are some, the venter on analysis discussion according to the characteristics of the hydraulic principle of some function, extraction and the relation between the hydraulic principle in general and not formed a kind of hydraulic fault diagnosis; This method is widely used in the hydraulic troubleshooting work and greatly improved the work efficiency and enterprise production efficiency.

Key words: hydraulic system； system connectivity； failure diagnosis; research

材料ZL105A铸造壳体结构改进方案

栗秀中

（航空工业第116厂，河南新乡453019）

摘要： 使用材料ZL105A铸造的产品壳体，随某涡扇发动机燃油控制系统联试过程中，发现铸造壳体燃油腔漏油。经过理论计算和失效分析，得出穿透疏松是导致铸件壳体漏油的主要原因。根据铸件壳体漏油机理，改进铸件壳体结构，并通过试验对结构改进的正确性进行了验证。

关键词： 穿透疏松；漏油；燃油腔；结构改进

中图分类号：TH137;TH12文献标志码：A文章编号：1008-0813（2020）02-0050-03

Structural Improvement Scheme of ZL105A Casting Shell

LI Xiu-zhong

（The 116th Company of AVIC, Xinxiang453019, China）

Abstract:  The shell cast by material ZL105A, in the joint test process of a turbofan engine fuel control system, it was found that the oil leakage of the cast shell fuel chamber failed. After theoretical calculation and failure analysis, it is concluded that the penetration looseness is the main cause of oil leakage in the casting shell. According to the oil leakage mechanism of the casting shell, the shell structure of the casting is improved, and the correctness of the structural improvement is verified by test.

Key words: penetrating looseness; oil leakage; fuel chamber; structural improvement

恒压系统与负载敏感系统的运用对比分析

冯书亮，蔡留金

（中铁工程装备集团有限公司，河南郑州450000）

摘要： 介绍了带负载敏感的恒压泵的工作原理。分别对使用普通换向阀和含定压差阀的换向阀作为控制元件，并结合单负载和双负载组成的恒压与负载敏感系统进行了理论分析，并对两种系统的运用进行了对比总结。

关键词： 恒压；负载敏感；定压差阀；普通换向阀；压降

中图分类号：TH137;v233.91文献标志码：A文章编号：1008-0813（2020）02-0053-05

Contrastive Analysis of the Application for Constant Pressure System and

Load Sensitive System

FENG Shu-liang, CAI Liu-jin

（China Railway Engineering Equipment Group Co., Ltd., Zhengzhou450000, China）

Abstract:  The working principle of the constant pressure pump with load sensing is introduced. Using general reversing valve and differential pressure reducing valve as the control elements respectively, the constant pressure and load sensitive system composed of single load and double load are analyzed theoretically. The application of the two system is compared and summarized.

Key words: constant pressure; load sensing; constant difference reducing valve; general reversing valve; pressure drop

通用液压渗漏测试系统的设计

吴坤，杜树星

（山东常林机械集团股份有限公司,山东临沂672715）

摘要： 该文主要论述了一种检测液压产品及系统渗漏的通用方法，并对其测试的原理予以分析。该设计的原理具有通用性好，易于模块化设计，又因其成本易于控制，既可应用于低成本的手动测试装置，又可通过增加控制单元，构成高效自动化的测试平台。

关键词： 渗漏测试；通用性；系统设计；自动化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0057-03

Design of General Hydraulic Leakage Test System

WU Kun， DU Shu-xing

（Shandong Changlin Machinery Group Co., Ltd., Linyi672715, China）

Abstract:  The paper describes a general method for detecting leakage of hydraulic products and systems, and analyzes its testing principle. The principle of the design has good universality, easy to modular design, and because its cost is easy to control, can be applied to low-cost manual test device, but also by adding control units, to form an efficient and automated test platform.

Key words: leak test; universality; systematic design; automation

起重机回转阀的匹配特性研究

叶俊峰¹，廖小宁²，朱安宁¹，刘士杰¹，许月平²

Study and Analysis of Crane Hoisting Rotary Valve

YE Jun-feng1, LIAO Xiao-ning2, ZHU An-ning1, LIU Shi-jie1, XU Yue-ping2

（1.浙江三一装备有限公司，浙江湖州313001;

2.三一汽车起重机有限公司，浙江湖州313001）

摘要： 针对起重机回转动作过程中有加速冲击的现象，严重影响了操作的舒适性和精准性。现对回转阀芯的匹配加以分析，找出影响回转冲击的关键因素，为后续的系统匹配提供理论依据。

关键词： 回转;阀芯;冲击；研究

含有蓄能器的液压伺服系统动态特性仿真设计

李红伟，李彧

（北京精密机电设备研究所，北京100076）

摘要： 该文以一类常见的电动液压能源为对象，建立了含有蓄能器的电动液压能源的仿真模型，并对能源的启动特性以及负载工作所要求的多种信号的跟踪能力进行了仿真分析。

关键词： 液压；伺服系统；蓄能器；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0063-04

Dynamic Characteristic Simulation Design of Hydraulic Servo System with Accumulator

LI Hong-wei, LI Yu

(Beijing Institute of Precision Mechanical and Electrical Control Equipment, Beijing100076, China)

Abstract:  Based on a kind of common electro-hydraulic energy, this paper establishes the simulation model of electric-hydraulic energy containing accumulator, and simulates the energy start-up characteristics and the tracking ability of various signals required by load work.

Key words: hydraulic; servo system; accumulator; design

喷嘴挡板先导式燃气阀阀芯气动力分析研究

唐慧慧，杨绪钊，胡丽国，韦贯举

（北京精密机电控制设备研究所，北京100076）

摘要： 小型燃气开关阀用于控制射流燃气的通断，是飞行器姿态调整机构的关键部件。基于国内外燃气阀的研究，设计了一种喷嘴挡板先导式燃气阀。为研究燃气阀阀芯受力特性，通过动量定理分析得出阀芯所受气动力的主要影响因素为阀口和阀芯直径。实验验证了流场数值模拟的准确性；通过流场数值模拟得出了阀口开度越大阀芯所受气动力越大的结论，同时分析得出了结构尺寸对阀芯气动力具体影响规律为：阀芯直径越大阀芯所受气动力越小，阀口直径越小阀芯所受气动力越大。

关键词： 燃气阀；气动力；动量定理；数值模拟

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）02-0066-06

Study and Analysis on Aerodynamic Force of Gas Valve Spool with

Flapper-nozzle Pilot-operated

TANG Hui-hui, YANG Xu-zhao, HU Li-guo, WEI Guan-ju

（Beijing Research Institute of Precise Mechanical and Electronic Control Equipment, Beijing100076, China）

Abstract:  Small gas switch valve is used to control jet gas on and off, which is a key part of aircraft attitude adjustment mechanism. Based on the research of gas valve both domestic and foreign, a kind of flapper-nozzle pilot-operated gas valve is designed .In order to study the stress characteristics of gas valve spool through the analysis of the momentum theorem, its concluded that the main influencing factors of the gas force on the valve spool are the diameter of valve port and spool. Experiments verify the accuracy of numerical simulation; through numerical simulation concluded that the greater the opening of valve port, the greater the aerodynamic force, and analyzed that the specific influence of structure size on the aerodynamic force is: the larger diameter of the spool and the valve port, the smaller the aerodynamic force on the spool.

Key words: gas valve; aerodynamic force; momentum theorem; numerical simulation

液压伺服系统控制回路电子校正方案设计

李彧，许文波，李红伟

（北京精密机电设备研究所，北京100076）

摘要： 该文针对航天用液压伺服系统，批生产中动压反馈式伺服阀零件种类多，调试难度增大。生产周期长，调试合格率低等突出问题进行分析。开展控制回路优化设计，增加电子校正环节，建立数学模型进行仿真计算和实物验证试验，可在保证系统动态特性前提下，避免了动压反馈式伺服阀生产难度过大问题。

关键词： 液压；伺服系统；控制回路；电子校正

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0072-03

Design on Electronic Correction Scheme of Hydraulic Servo Control System

LI Yu, XU Wen-bo, LI Hong-wei

(Beijing Institute of Precision Mechanical and Electrical Control Equipment, Beijing100076, China)

Abstract:  In this paper, hydraulic servo system for aerospace, batch production of dynamic pressure feedback servo valve parts more variety, commissioning is difficult, the production cycle is long, the commissioning pass rate is low and other outstanding problems are analyzed. To carry out the optimization design of the control loop, increase the electronic correction link, establish mathematical model for simulation calculation and physical verification test, can be guaranteed the dynamic characteristics of the system under the premise, to avoid the dynamic pressure feedback servo valve production is too difficult.

Key words: hydraulic; servo system; control loop; electronic correction

数字阀驱动机构控制技术研究

朱家厅，程相，左哲清，郑悫

(北京精密机电控制设备研究所，北京100076)

摘要： 数字阀的工作原理是驱动机构直接驱动阀芯运动，驱动机构集成了伺服电机和滚珠丝杠，伺服控制器实现对驱动机构的精确控制，驱动机构的动态和静态特性决定了数字阀的动态静态特性。伺服控制器硬件设计采用了TI公司的TMS320F28069作为主控芯片，DRV8332作为驱动芯片的架构模式。同时，在软件算法上，引入了变增益和分段式PI的控制方法实现了对数字阀死区的有效补偿。实验结果表明，这种控制技术很好的满足了数字阀的性能要求。

关键词： 数字阀；控制技术；死区补偿；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0075-04

Research on Control Method of Digital Valve Driving Mechanism

ZHU Jia-ting, CHENG Xiang, ZUO Zhe-qing, ZHENG Que

(Beijing Research Institute of Precise Mechatronics and Controls, Beijing100076, China)

Abstract:  The principle of digital valve is that the driving mechanism drives the valve core directly, the driving mechanism is composed of servo motor and ball screw, the servo controller can realize the precise control of the driving mechanism, the dynamic and static properties of digital valve is decided by driving mechanism. The hardware design of controller adopts TMS320F28069 of TI company as the main control chip, the DRV8332 as the driving chip. Meanwhile,the variable gain and piecewise PI is introduced, this control method can effectively compensate the dead zone of digital valve. The experimental results show that the method meets the performance requirements of digital valve very well.

Key words: digital servo valve; control method; dead zone compensation; research

运载火箭电液伺服系统多余物识别与防控措施研究

叶朋¹，郑波¹，赵春¹，王剑¹，刘新¹，芦星竹²

（1.北京精密机电控制设备研究所，北京100076； 2.佳木斯大学机械工程学院，黑龙江佳木斯154007）

摘要： 针对运载火箭配套电液伺服系统产品结构复杂、生产工序繁琐、易生多余物、且其性能受多余物影响大的特点，现以提产品可靠性为目的，基于液压回路和电气回路的工作特点，分析多余物来源和典型故障模式，结合近年来质量问题数据统计，采用故障树法（Fault Tree Analysis）和矩阵图法（Matrix Diagram），对从设计至飞行的全生命周期内多余物引入模式进行识别和评定，梳理了设计、工艺和过程控制三方面的防控措施，改进了油液加注环节，建立了较为完善的多余物防控体系，为确保产品质量奠定了基础。

关键词： 电液伺服系统；多余物防控；可靠性；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）02-0078-06

Study on the Identification and Prevention of Debris in the Launch Vehicles

Electro-hydraulic Servo Systems

YE Peng¹, ZHENG Bo¹, ZHAO Chun¹, WANG Jian¹, LIU Xin¹, LU Xing-zhu²

(1. Beijing Institute of Precision Mechatronics and Controls, Beijing100076, China;

2. School of Mechanical Engineering, Jiamusi University, Jiamusi154007, China)

Abstract:  For the Electro-hydraulic Servo Systems of Launch Vehicles has the characteristics of complex structure, cumbersome production process, easy to generate debris, and the capability greatly affected by debris. As the purpose of improving reliability of Electro-hydraulic Servo System, bases on the working characteristics of hydraulic and electric circuit, analyses the source and typical fault-pattern of debris, combines with the statistics of quality problems occurred in recent years, the paper identifies and evaluates debris introduced models in lifecycle by using Fault Tree Analysis and Matrix Diagram. The paper also carding the prevention and control methods of debris from aspects of design, processing and process control, improves oil filling process. As a result, it can form a foundation to ensure the quality of product by established a relatively perfect debris prevention and control system.

Key words: electro-hydraulic servo system; prevention and control of debris; reliability; study

一种数字式高温燃油控制阀的特性研究

黄涛，王书铭，陈祖希，左哲清，程相，张宇

（北京精密机电控制设备研究所,北京100076）

摘要： 该文提出了一种数字式高温燃油控制阀，可以实现对高温燃油的连续精确控制。首先，针对高温的恶劣工况，进行了方案设计，包括前置级伺服阀的选用、主阀阀口的设计、整阀的冷却设计，介绍了其结构组成及工作原理；之后分别对高温阀的热特性和控制特性进行了仿真分析，结果表明该方案的高温阀能够满足设计要求。

关键词： 高温阀；燃油控制；热特性；控制特性

中图分类号：TH137.9文献标志码：A文章编号：1008-0813（2020）02-0084-05

Study on the Characteristics of Digital High Temperature Fuel Control Valve

HUANG Tao, WANG Shu-ming, CHEN Zu-xi, ZUO Zhe-qing, CHENG Xiang, ZHANG Yu

（Beijing Research Institute of Precise Mechatronics and Controls, Beijing100076, China）

Abstract:  This paper presents a digital high temperature fule control vavle, which can realize continuous and accurate control of fuel. Firstly, aiming at the bad working conditions of high temperature, the scheme design is carried out, including the selection of the front stage servo valve, the design of the main valve port and the cooling design of the whole valve, the structure and working principle are introduced. Then the thermal and control characteristics of the high temperature valve are simulated and analyzed respectively. The results show that the high temperature valve of the scheme can meet the design requirements.

Key words: high temperature valve; fuel control; thermal characteristics; control characteristics