水压大流量直线电机驱动高速分步换向阀控制系统研究

杨曦¹，贾国涛²，聂松林³，张京秀³，张天³，尹方龙³

（1.海军驻昆明地区军事代表办事处,云南昆明650032；

2.中船重工705所昆明分部,云南昆明650032；

3.北京工业大学先进制造技术北京市重点实验室,北京100124）

摘要：该文介绍了一种新型直线电机驱动的大流量先导式高速换向阀，并对直线电机的控制方案进行了研究。建立了直线电机的数学模型，同时为了有效验证直线电机直接驱动高速换向阀的可行性，避免试验样机加工后出现结构缺陷，该文使用MATLAB/Simulink仿真软件，对直线电机的响应时间以及控制精度进行了仿真分析，通过仿真得到了高度换向阀在给定位移时的响应曲线以及运行轨迹，为后续调试试验提供了有效的理论依据。

关键词：直线电机；水压大流量；直驱式高速换向阀；控制系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0001-07

Study on the Control System of Large Flow and High Speed Step Reversing

Valve Driven by Linear Motor

YANG Xi¹, JIA Guo-tao², NIE Song-lin³, ZHANG Jing-xiu³, ZHANG Tian³, YIN Fang-long³

(1. Office of Naval Representatives in Kunming Area, Kunming650032, China;

2. The 705 Kunming Branch of China Ship Heavy Industry, Kunming650032, China;

3. Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology,Beijing100124, China）

Abstract:  This paper introduces a new type of high speed reversing valve driven by linear motor, and studies the control scheme of linear motor. Established the mathematical model of linear motor, at the same time, in order to effectively to verify the feasibility of the linear motor direct drive high-speed reversing valve, avoid test prototype structure defects after processing, this article uses MATLAB/Simulink simulation software, the response time of linear motor and control precision are analyzed in the simulation, simulation has been highly switch valve in a given displacement response curve and orbit, for subsequent debugging test provides effective theoretical basis.

Key words: linear motor; large hydraulic flux; direct drive high speed reversing valve; control system

疫情背景下的《气液动控制技术》课程教学改革探索

林少玲，何建华

（福建信息职业技术学院智能制造学院,福建福州350003）

摘要：基于学情分析，针对《气液动控制技术》课程传统教学过程中存在的问题，结合疫情期间“停课不停学”的线上教学需要，从学生的实际工作岗位需求和职业能力发展需求出发，将教学内容与岗位需求、职业能力发展相融合，通过整合优化课程教学资源，丰富趣化课堂组织方式以及调整序化教学实施流程等，开展课程教学改革实践，探索适用于疫情背景下的线上教学模式，也为后疫情时期的线上线下混合式教学提供新的思路。

关键词：疫情；气液动控制技术；课程改革；线上教学

中图分类号：TH138;G712文献标志码：A文章编号：1008-0813（2020）11-0008-03

Exploration on the Teaching Reform of the Course “Pneumatic-Hydraulic

Control Technology” under the Background of the Epidemic

LIN Shao-ling, HE Jian-hua

(Institute of Intelligent Manufacturing, Fujian Polytechnic of Information Technology, Fuzhou350003, China)

Abstract: Based on the analysis of learning situation, for the problems existing in the traditional teaching process of “Pneumatic-Hydraulic Control Technology”, combining with the online teaching needs of “no class suspension” during the epidemic, starting from the students'actual job needs and professional ability development needs, combine teaching content with job requirements and professional ability development needs, by integrating and optimizing course teaching resources, enriching the organization of interesting classrooms and adjusting the implementation process of sequential teaching, etc, advancing curriculum teaching reform practice, exploring online teaching models suitable for the context of the epidemic, it also provides new ideas for online and offline hybrid teaching in the post-epidemic period.

Key words:epidemic; pneumatic-hydraulic control technology; course reform; online teaching

多功能抢险救援车回转系统设计及试验研究

王恒^1,2，李迎武³，张国仙^1,2

（1.徐州集团工程机械有限公司，江苏徐州221004;

2.江苏徐工工程机械研究院有限公司，江苏徐州221004;

3.中机科（北京）车辆检测工程研究院有限公司，北京102100）

摘要：通过对回转系统计算分析，得出回转系统最大阻力矩，根据回转系统最大阻力矩和回转速度，实现液压系统匹配。对回转系统测试表明，回转系统压力随转速升高而增大，在起重工况下，测得的系统压力与理论计算值基本一致，回转方向切换时会引起系统压力超调，需通过设置控制电流信号上升沿斜坡减小压力超调。

关键词：多功能抢险救援车；回转；试验；系统设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0010-04

Multifunction Rescue Vehicle Swing System Design and Test

WANG Heng ^1,2， LI Ying-wu³， ZHANG Guo-xian^1,2

(1. Xuzhou Construction Machinery Group Co., Ltd., Xuzhou221004, China;

2. Jiangsu XCMG Construction Machinery Institute Co., Ltd., Xuzhou221004, China;

3. Vehicle Testing Engineering Research Institute of China, Beijing102100, China)

Abstract: With swing system caculation, obtained the maximum swing resistance moment. Base on the maximum resistance moment and rotary speed hydraulic system matched. Swing test result present hydraulic system pressure increase with rotary speed. Lifting test present real pressure consistant with cacaulation value. Swing direction change cause hydraulic system pressure overshoot. Pressure overshoot can reduce by setting control current signal ramp.

Key words: multifunction rescue vehicle; swing; test; system design

隔板对液压油箱内部油液流动影响的分析

岳大灵^1,2,雷向雳¹,刘增光^1,2，李林飞¹，刘超¹

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050;

2.甘肃省流体机械及系统重点实验室，甘肃兰州730050）

摘要：提出利用半导体冷却器对液压油箱的油液进行冷却，设计出集油液冷却和油箱隔板功能为一体的半导体冷却隔板和油箱结构。利用CFD软件对油箱内无隔板和分别安装有常规隔板、新型半导体冷却隔板时油箱内部油液的流动进行数值模拟，得到三种情况下油箱内部油液的速度分布云图、速度矢量图和油液流动迹线图。分析了加入常规隔板和新型半导体冷却隔板后对油箱内部油液流动的影响规律，为半导体冷却型油箱的设计和优化提供参考。

关键词：液压油箱;隔板;CFD;分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0014-05

Analysis on the Effect of the Baffle Plate on Oil Flow Inside Hydraulic Tank

YUE Da-ling^1,2, LEI Xiang-li¹, LIU Zeng-guang^1,2, LI Lin-fei¹, LIU Chao¹

(1.Energy and Power Engineering College, Lanzhou University of Technology, Lanzhou730050, China；2. Key Laboratory of Fluid Machinery and Systems, Lanzhou730050, China)

Abstract: The semiconductor cooler is used to cool the oil in hydraulic tank, and the baffle plate with semiconductor cooling function and the oil tank are designed, which integrates the functions of the oil cooling and the oil tank partition. CFD software is used to simulate the oil flow inside the tank when there is no baffle plate, conventional baffle plate and new semiconductor cooling baffle plate. The velocity distribution cloud diagram, velocity vector diagram and oil flow trace diagram are obtained in three cases. The influence laws of oil flow in the tank after adding conventional baffle plate and new type of semiconductor cooling baffle plate are analyzed, which provides reference for the design and optimization of semiconductor cooling tank.

Key words: hydraulic oil tank; baffle plate; CFD; analysis

高温旋转接头的设计研究

吴兆山，王永乐，郑国运，李香，丁思云，李鲲

(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： 针对高温导热油旋转接头的工作特点及工况参数，提出了高温旋转接头的结构设计、材料选择、密封参数计算等方法，利用有限元软件对外管体、密封环、端盖的温度场及力热耦合变形进行分析与优化设计，并进行了试验验证。研究结果表明，所设计的旋转接头完全能够满足高温工况下的使用要求。

关键词：高温旋转接头；设计与计算；有限元分析；试验

中图分类号：TB42文献标志码：A文章编号：1008-0813（2020）11-0018-05

Research on Design Method of High Temperature Rotary Joint

WU Zhao-shan, WANG Yong-le, ZHENG Guo-yun, LI Xiang， DING Si-yun， LI Kun

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

Engineering Research Center, Hefei230031, China)

Abstract: According to the working characteristics and parameters of high temperature heat transfer oil rotary joint, the methods of structural design, material selection and sealing parameter calculation of high temperature rotary joint are proposed. The temperature field and thermo mechanical coupling deformation of outer pipe body, sealing ring and end cover are analyzed and optimized by using finite element software. The experimental verification foe design of the rotary joint is carried out. The results show that the designed rotary joint can fully meet the requirements of high temperature operation.

Key words: high temperature rotary joint; design and calculation; finite element analysis; test

气动换向阀流量特性测定试验研究与验证

毛乾晖¹，刘丽娇¹，任志胜¹，施朝辉¹，胡小雄²，刘文³

(1.国家气动产品质量监督检验中心，浙江奉化315500；

2.星宇电子（宁波）有限公司，浙江奉化315514；3.浙江大学宁波理工学院，浙江宁波315100）

摘要：该文依据GB/T 14513.2-2019《气动 使用可压缩流体元件的流量特性测定 第2部分：可代替的测试方法》标准对气动行业通用的某典型气动换向阀产品进行流量特性测定试验，通过试验数据采集分析计算得到3个流量特性特征参数，声速流导C、临界压力比b和亚声速指数m，为国内气动换向阀流量特性试验及标准制定提供参考。

关键词：流量特性；声速流导；气动；换向阀

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）11-0023-05

Research and Verification of Measuring Flow-rate Characteristics for

Pneumatic Directional Control Valve

MAO Qian-hui¹, LIU Li-jiao¹, REN Zhi-sheng¹, SHI Zhao-hui¹, HU Xiao-xiong², LIU Wen³

(1. National Quality Supervision and Inspection Center of Pneumatic Products, Fenghua315500, China；2. Xingyu Electron (Ningbo) Co., Ltd., Fenghua315514, China;

3. Zhejiang University Ningbo Institute of Technology, Ningbo315100, China)

Abstract:According to the standard of GB/T 14513.2-2019, pneumatic fluid power—determination of flow-rate characteristics of components using compressible fluids—Part 2: Alternative test methods, a typical pneumatic fluid power directional control valve in the pneumatic industry is tested for flow-rate characteristics. Through the analysis on acquired data, three flow-rate characteristic parameters, sonic conductance, C, critical back-pressure ratio, b and subsonic index, m are determined. The purpose of this paper is to provide reference for testing and standard-setting of flow-rate characteristics of pneumatic fluid power directional control valve in domestic.

Key words: flow characteristic; sonic conductance; pneumatic; directional control valve

农用机械动力与静液压系统联合试验研究

尹丛勃，陈权威，杨文正，任军华

(上海理工大学机械工程学院，上海200093)

摘要：该文针对农用机械静液压传动（Hydrostatic Static Transmission，HST）系统及发动机联合系统的工作特性开展试验研究，经过试验得到不同油门开度及不同分流比例下的发动机输出特性以及HST系统传动特性，对不同工况下动力系统和传动系统的传动损失和泄漏损失进行研究，通过合理的匹配优化，以改进系统的效率。试验结果表明HST系统的传动效率受到动力输入及输出特性和分流比例的综合影响，通过合理的设计动力匹配，在分流比例为25%时，HST系统机械损失和泄漏损失减少，发动机与HST耦合系统效率可达80%以上，个别工况效率超过90%，比传统的静液压传动系统提高10%左右的效率，能够提高农用机械整体系统的效率，获得良好的系统动力性和燃油经济性。

关键词：HST；联合试验研究；匹配优化；农用机械

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0028-07

Joint Experimental Research on Power and Hydrostatic System of Agricultural Machinery

YIN Cong-bo， CHEN Quan-wei， YANG Wen-zheng， REN Jun-hua

（School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai200093，China）

Abstract:  This paper conducts experimental research on the working characteristics of the hydrostatic static transmission (HST) system and the engine combined system of agricultural machinery. After the experiment, the output characteristics of the engine under different throttle openings and different split ratios and the transmission characteristics of the HST system are obtained. The transmission loss and leakage loss of the power system and the transmission system under working conditions are studied, and the efficiency of the system is improved through reasonable matching and optimization. The test results show that the transmission efficiency of the HST system is comprehensively affected by the power input and output characteristics and the split ratio. Through a reasonable design of power matching, when the split ratio is 25%, the mechanical loss and leakage loss of the HST system are reduced, and the engine and HST coupling system The efficiency can reach more than 80%, and the efficiency of individual working conditions exceeds 90%, which is about 10% higher than the traditional hydrostatic transmission system. It can improve the efficiency of the overall system of agricultural machinery and obtain good system dynamics and fuel economy.

Key words: HST; joint experimental research; matching optimization; agricultural machinery

大排量径向柱塞泵滑靴与定子的运动分析

李少年，代鹏云，常露丹，王煜

(兰州理工大学能源与动力工程学院，甘肃兰州730050)

摘要：针对大排量径向柱塞泵定子特殊安装方式，首先假设滑靴与定子固接，分别从单柱塞、双柱塞等几个方面，画出运动机构简图，进行自由度分析，得到定子与转子角位移和角速度之间关系。然后分析滑靴沿定子内表面运动时，滑靴与定子之间的运动关系。结果发现，吸油区滑靴对定子内表面作用力相对较小，可以认为受到滑靴为一数值较小且阻碍定子运动的摩擦力作用。定子主要由排油区滑靴摩擦力驱动，不同位置滑靴对定子运动产生促进和阻碍的作用不同，使得定子将以一会儿增大或者一会儿减小的变化角速度旋转。和传统定子固定形式径向柱塞泵相比，此结构有效降低了滑靴与定子之间因为摩擦而消耗的功率，机械效率得到提升。

关键词：径向柱塞泵；滑靴；定子；运动

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0035-05

Analysis of the Motion between Slipper and Stator of Large Displacement

Radial Piston Pump

LI Shao-nian, DAI Peng-yun, CHANG Lu-dan, WANG Yu

(College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou730050, China)

Abstract: According to the special installation method of the stator of the large displacement radial piston pump, the slipper is supposed that it's fixed to the stator, and the schematic diagram of the moving mechanism is drawn from the aspects of single piston and double piston respectively. And the degree of freedom is analyzed to get the relationship between the angular displacement and angular velocity of the stator and rotor. Then, the relationship between the slipper and the stator is analyzed when the slipper moves along the inner surface of the stator. It is found that the acting force of the slipper on the stator inner surface is relatively small in the oil absorption area, and it can be considered that the friction effect of the slipper is small and hinder the movement of the stator. The stator is mainly driven by the frictional force of the slippers in the oil discharge area. Different positions of the slippers have different effects on promoting and hindering the stator movement, so that the stator will rotate at a high or a low angular speed for a while. Compared with the traditional radial piston pump which stator is fixed, this structure effectively reduces the power consumption between the slipper and the stator because of friction, and improves the mechanical efficiency.

Key words: radial piston pump; slipper; stator; motion

浅析高压超柔编织软管总成的结构性能及在起重液压系统中的应用

刘晓芳，刘佳林，张唯，孙爱民，张义春

（徐州徐工液压件有限公司，江苏徐州221004）

摘要：工程机械主机产品中液压系统软管总成的选型是保证整机安全可靠运行的一项重要的环节，设计人员在应用中首先应考虑软管和接头选型必须保证软管的总成最大工作压力等于或大于液压系统的最大压力，系统的脉冲压力或峰值压力必须小于软管的最大额定工作压力以及流体的化学兼容性之外，还需根据软管总成的使用综合工况选择相应的避免扭曲、以及适合安装的空间，保证软管的弯曲半径大于其最小弯曲半径参数。该文通过针对高压超柔编织管的相关结构，以及试验性能进行了系统分析，并提出了其在起重液压系统中的应用重要性。

关键词：高压超柔编织胶管；增强层；起重液压系统；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0039-04

Brief Analysis on Structural Performance of High Pressure Ultra-flexible Braided

Hose Assembly and Its Application in Lifting Hydraulic System

LIU Xiao-fang, LIU Jia-lin, ZHANG Wei, SUN Ai-min, ZHANG Yi-chun

(Xuzhou Xugong Hydraulic Components Co., Ltd., Xuzhou221004, China)

Abstract: The selection of the hose assembly of the hydraulic system in the main engine of construction machinery is an important link to ensure the safe and reliable operation of the whole machine. In the application, the designer should first consider that the selection of hose and connector must ensure that the maximum working pressure of the hose assembly is equal to or greater than the maximum pressure of the hydraulic system, and the pulse pressure or peak pressure of the system must be less than the maximum rated pressure of the hose In addition to the working pressure and chemical compatibility of the fluid, it is also necessary to choose the appropriate anti twisting measures according to the comprehensive working conditions of the hose assembly, and ensure that the bending radius of the hose is greater than the minimum bending radius parameter when it is installed. In this paper, the relevant structure and test performance of the high-pressure super flexible braided pipe are systematically analyzed, and the importance of its application in the lifting hydraulic system is put forward.

Key words: high pressure super flexible woven rubber hose; reinforcing layer; lifting hydraulic system; application

基于变排量液压马达舱门驱动系统功率消耗分析

封彦锋

(航空工业庆安集团有限公司，陕西西安710077)

摘要：该文对伺服变排量液压马达构型的武器舱门驱动系统原理进行了介绍，并根据系统使用要求，对速度和流量两种控制方法进行介绍和优缺点对比分析，得出流量控制方法的系统功率消耗最小。利用AMESim软件仿真平台，分别建立速度和流量控制两种方法的系统仿真模型，进行仿真分析。结果表明基于流量控制方法的伺服变排量液压马达系统功率消耗最小，为后续武器舱门驱动系统省功率设计提供帮助。

关键词：武器舱门；功率；变排量液压马达；控制方法；AMESim

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0043-04

Analysis Consume Power of Door Drive System with VariableDisplacement Hydraulic Motors

FENG Yan-feng

(AVIC Qing'an Group Co., Ltd., Xi'an710077, China)

Abstract: The paper introduces the structure of weapons bay door drive system which uses servo variable displacement hydraulic motors， through explaining and contrasting the relative merits between the speed control and the rate of flow control based on the requirements of the system， the rate of flow control is more efficient. By using AMESim simulation platform， the system is simulated with two kinds of control methodology. The results show that the rate of flow control which uses in servo variable displacement hydraulic motor system consumes more few power， the research of this paper can provide some help to decrease the power consume in the follow design on weapons bay door drive system.

Key words: weapons bny door; power; variable displacement hydraulic motors;control methodology;AMESim

基于分布式油源的刹车技术研究

何学工，李祥阳，闵丽

（航空工业西安航空制动科技有限公司，陕西西安710065）

摘要：该文在对飞机刹车系统的发展状况进行详细调研的基础上，针对飞机刹车系统设计了一种新型分布式油源刹车系统，该方案为定排量变转速型，即泵定排量、电机转速可调。完成了系统核心部件电液刹车模块EHBM数学模型的建立与仿真，设计了无刷直流电机的电流转速双闭环控制方案，并进行了原理样机的设计和试验，结果表明系统具有良好的动态性能，可以快速、准确地跟踪期望刹车压力，能够完全满足刹车系统设计要求。论文最后对分布式油源刹车系统的试验结果进行了总结，并对系统发展进行了展望，指出该系统广阔的发展前景。

关键词：防滑刹车；电液刹车模块；无刷直流电机；分布式油源

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0047-04

Research on Electrohydraulic Actuator Brake System with Distributed Oil Source

HE Xue-gong, LI Xiang-yang, MIN Li

(AVIC XI'AN AVIATION BRAKE TECHNOLOGY CO., LTD., Xi'an710065, China)

Abstract: On the basis of researching detailedly the development of aircraft brake system, a new type distributed oil sources brake system is designed for aircraft brake system in this article. This scheme will offer constant pump displacement and variable rotating speed, this is, pump displacement is constant, and motor rotating speed is adjustable. After the establishment and simulation of EHBM mathematic model for system key parts electrohydraulic brake module are completed, dual closed-loop control scheme of current rotating speed is designed for brushless DC motor, and principle prototype is designed and tested. The results show that the system can provide good dynamic performance, and can rapidly and correctly trace anticipant brake pressure; therefore, designed system is capable of satisfying fully design requirement of the brake system. Ultimately, test result of distributed oil source brake control system is concluded, and vision of system is prospected in this article, which shows that this system will have a bright future.

Key words: anti-skid brake; electrohydraulic brake module; brushless DC motor; distributed oil sources

液压操作手柄控制系统优化设计

王晋芝，刘雨，杨华，马吉光

（中航力源液压股份有限公司，贵州 贵阳550018）

摘要：针对工程机械液压控制系统中液压操作手柄存在的空行程问题，设计出一种负载敏感电子越权控制系统，通过AMESim软件仿真和试验验证了系统的正确性，该控制系统通过调整变量泵上负载敏感阀的阀芯位移，使变量泵流量与液压操作手柄的行程相匹配，从而消除操作手柄的空行程问题，提高了操作手柄操控主机动作的控制精度。

关键词：液压操作手柄；负载敏感电子越权控制；AMESim；优化设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0051-05

Optimal Design of Hydraulic Operating Handle Control System

WANG Jin-zhi, LIU Yu, YANG Hua, MA Ji-guang

（AVIC Liyuan Hydraulic Inc., Guiyang550018, China）

Abstract: Focus on the idle stroke problem of hydraulic operating handle in the engineering mechanical hydraulic control system, design a load-sensitive control with electronic override control system to solve the problem, through AMESim software simulation and experiment verify the correctness of the load-sensitive control with electronic override control system. The control system through adjust valve core displacement of sensitive valve of variable pump to match the flow of pump and the stroke of hydraulic operating handle. And then eliminate the idle stroke problem of hydraulic operating handle, improve the control precision of hydraulic operating handle to drive the engineering mechanical action.

Key words:hydraulic operating handle; load-sensitive control with electronic override control; AMESim; optimal design

立式污水泵新型密封部件的设计及应用

张元华，贾炼，李小宇，刘莉莉，王禹森

（达州市农业机械研究推广站，四川达州635099）

摘要：针对立式污水泵的填料密封寿命很短的突出问题，提出了在原填料密封部位进行结构上的新型设计，设置内、外水封套筒，用两个橡胶板夹毛毡压住内、外水封套筒。先对WG50-200型立式污水泵的填料密封来作改进试验，试验成功使用半年以后再作系列规格设计及试验，然后再推广应用，该新型密封部件有以下优点：轴套不会磨损，内、外水封套筒不会磨损，轴封功耗很小，使用寿命长。

关键词：立式污水泵；密封部件；设计；应用

中图分类号：TB42文献标志码：A文章编号：1008-0813（2020）11-0056-03

Design and Application of New Sealed Components for Vertical Sewage Pumps

ZHANG Yuan-hua, JIA Lian, LI Xiao-yu, LIU Li-li, WANG Yu-sen

(Dazhou Agricultural Machinery Research Promotion Station, Dazhou635099, China)

Abstract: In view of the outstanding problem of short sealing life of filling for vertical sewage pump, a new type of structure design for sealing part of original packing is put forward. The inner and outer water sealing sleeve is set up, and the inner and outer water sealing sleeve is pressed with two rubber sheets. First, the packing seal of the WG50-200 vertical sewage pump was improved. After six months of successful use of the test, a series of specifications were designed and tested. Then the application was promoted. The new sealing part has the following advantages: The sleeve will not wear out. The inner and outer water sealing sleeve will not wear, the shaft sealing power consumption is small, and the service life is long.

Key words: vertical sewage pump; sealed components; design; application

一种凿岩机润滑系统

汤伟，李言芝

(南京贝奇尔机械有限公司，江苏南京210038)

摘要：提出一种凿岩机润滑系统，并简要介绍了其结构构成及工作过程，该系统解决了克服现有技术的缺点，试验验证了该系统的可靠性。

关键词： 凿岩机；供气回路；供油回路；润滑系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0058-02

A Lubrication System of Rock Drill

TANG Wei, LI Yan-zhi

(Nanjing BIJUR Machinery Products Ltd., Nanjing210038, China)

Abstract: This paper puts forward a lubrication system for rock drill, and briefly introduces its structure and working process. The system overcomes the shortcomings of the prior art, and the reliability of the system is verified by experiments.

Key words: rock drill; gas supply circuit; oil supply circuit; lubrication system

一种内锁式作动筒的应急开锁装置的设计

黄立新，邓晓山，李忠钰

(中航飞机起落架有限责任公司，湖南长沙410200)

摘要：采用集成设计技术，在内锁式液压作动筒基本功能和结构的基础上创新设计出一套手动应急机械开锁装置，达到简化液压作动筒的应急控制系统、降低制造和使用成本和提高收放或开闭机构安全性的目的。

关键词：作动筒；应急机械开锁；装置；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0060-02

The Design on Mechanical Emergency Unlock Device of Built-in

Locking Hydraulic Cylinder

HUANG Li-xin, DENG Xiao-shan, LI Zhong-yu

(AVIC Landing Gear Advanced Manufacturing Corp., Changsha410200, China)

Abstract: For the purpose of simplifying the structure of the emergency control system of hydraulic cylinder, saving the cost of manufacturing and using the equipment and improving the safety of retractile mechanims or open-close mechanims, a set of mechanical emergency unlock device based on basic function and structure of built-in locking hydraulic cylinder was designed by adopting the idea of integrated design.

Key words: hydraulic cylinder; mechanical emergency unlock; device; design

液压缸用小型螺栓/螺钉强度试验装置的设计与应用

孙鸿钧

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要：针对液压缸中应用的小型螺栓/螺钉强度测试，该文从试验方法分析、试验装置设计以及应用的角度进行阐述。

关键词：液压缸；小型螺栓/螺钉；强度试验；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0062-03

Design and Application of  Miniature Bolt/Screw Strength Test Device forHydraulic Cylinder

SUN Hong-jun

(Bengbu YeLi Machinery Co., Ltd., Bengbu233030, China)

Abstract:  Aiming at the strength test of miniature bolt/screw applied in hydraulic cylinder, this paper expounds from the aspects of test method analysis, test device design and application.

Key words: hydraulic cylinder; miniature bolt/screw; the strength test; design

某起竖车电液系统改进设计研究

王飞，李荣，周黎，吕岩

（北京航天发射技术研究所，北京100076）

摘要：在分析某起竖车液压系统现状的基础上，找出了存在的问题，提出了油源、液压操作箱及执行机构等改进方案，并基于CAN总线构建了控制系统，实现了起竖车工作流程的自动控制。在现场实施了起竖车液压系统的改造并进行了试验,通过试验验证了改进方案的正确性。

关键词：起竖车；电液系统；改进；研究

中图分类号：TH137；TJ768.2文献标志码：A文章编号：1008-0813（2020）11-0064-05

Research on the Improvement of the Electro-hydraulic System for a Erecting Vehicle

WANG Fei, LI Rong, ZHOU Li, LV Yan

(Beijing Institute of Space Launch Technology, Beijing100076, China)

Abstract: Based on the analysis of the current situation of the hydraulic system of a erecting vehicle, the existing problems are found out, and the improvement schemes such as oil source, hydraulic operation box and actuator are put forward. The control system is constructed based on CAN bus to realize the automatic control of the work flow of the erecting vehicle. The modification of the hydraulic system of the erecting vehicle is carried out in the field, and the correctness of the improvement scheme is verified by the test.

Key words: erecting vehicle; electrohydraulic system; improvement; research

基于连杆液压复合机构的压铸取件机器臂装置设计及应用

林占宏，金晨

(青海盐湖特立镁有限公司，青海西宁810000)

摘要：该文通过对镁合金压铸取件、搬移现状分析及机器臂自动夹持装置设计需求分析，从镁合金压铸取件机器臂自动夹持装置设计方案、结构设计及工作机理、夹持力及驱动液压缸计算、优势分析等四方面进行详述，解决了现有镁合金压铸人工取件方式劳动强度大、工作效率低下、存在安全隐患等问题，该自动夹持装置通过机械结构代替人工进行压铸取件、搬移，不但工作效率得到大幅提高，且安全性也非常高，值得应用推广。

关键词：压铸；机器臂夹持装置；设计；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0068-04

Design and Application of Die Casting Arm Device with   Connecting Rod

Hydraulic Compound Mechanism

LIN Zhan-hong, JIN Chen

（Qinghai Salt Lake Teli Magnesium Co., Ltd., Xining810000, China)

Abstract: In this article, through analysis about the present situation of magnesium alloy die-casting pick-up, move and robotic automatic clamping device design requirements analysis, from the magnesium alloy die-casting machine arm automatic clamping device design scheme, structure design and working mechanism, clamping force and driving hydraulic cylinder, analyzes advantages and so on four aspects to carry on the detailed, solves the existing magnesium alloy die casting artificial way take labor intensity, work efficiency is low, some problems such as safety, the automatic clamping device through the mechanical structure instead of artificial die-casting pick-up, move, not only work efficiency to obtain enhances greatly, and security is also very high, is worth popularizing application.

Key words: die casting; machine arm clamping device; design; application

一种弹簧气瓶充气方法

李中强,潘智勇,姚宇,卢猛,许凌东,秦平

（中国空空导弹研究院凯迈（洛阳）气源有限公司，河南洛阳471003）

摘要：该文介绍了一种弹簧气瓶充气方法，该方法是针对某型弹簧气瓶设计的，在充分考虑了弹簧气瓶的结构特性，尽可能利用现有生产资源的前提下，设计了新工艺装备，设置了新工艺路线，选择了新工艺方法，最终实现了弹簧气瓶安全、可靠、高效的充气。

关键词：小型高压气瓶；弹簧气瓶；充气方法；设计

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）11-0072-03

A Method of Filling Spring Gas Cylinder

LI Zhong-qiang, PAN Zhi-yong, YAO Yu, LU Meng, XU Ling-dong, QIN Ping

(Cama LuoYang Gas Supply Co., Ltd., China Airborne Missile Academy, Luoyang471003, China)

Abstract: This article introduces a spring gas cylinder inflation method, which is designed for a certain type of spring gas cylinder and then fully considers the structural characteristics of the spring gas cylinder. Under the premise of using existing production resources as much as possible, a new design is designed process equipment, set up a new process route, choose a new process route, choose a new process method, and finally realize the safe, reliable and efficient inflation of the spring gas cylinder.

Key words: small high-pressure gas cylinders; spring gas cylinders; inflation methods; design

水下平台电缆密封装置设计

高坤，许丽萍，兰卉，张孝薇

（国家海洋技术中心，天津300222）

摘要：传统的水下电缆密封在交变温度和压力作用下容易发生泄漏，因此迫切的需要一种新型的电缆密封来解决此问题。该文设计专门的橡胶密封垫和垫片来增加电缆密封的可靠性，采用具有储能作用的蝶形弹簧垫片来解决交变压力和温度引起的变形泄漏问题。实验室和海上试验证明，该结构简单、易于实现，工作可靠，具有良好的应用前景。

关键词：电缆密封；蝶形垫片；水下平台；交变温度压力

中图分类号：TB42；P715.1文献标志码：A文章编号：1008-0813（2020）11-0075-03

The Design of Cable Sealing Device on Underwater Platform

GAO Kun, XU Li-ping, LAN Hui, ZHANG Xiao-wei

(The National Ocean Technology Center, Tianjin300222, China)

Abstract: The traditional underwater cable sealing are prone to leakage in alternating temperature and pressure, so a novel cable sealing structure was urgent need. In this paper, a special rubber seal and gasket were designed and used to increase the reliability of cable sealing. A butterfly spring washer which could store energy was designed to solve the leakage caused by rubber deformation in alternating pressure and temperature. Moreover, the results of testing in laboratory and sea proved that the simple structure design was reasonable、reliable and easy to implement. The device will have a good application prospect.

Key words:cable sealing; butterfly spring washer; underwater platform; alternating temperature and pressure

某型起重机油冷器胀裂失效分析与对策

徐勇^1,2，杨耀祥³,丁锋³

（1.邵阳学院机械与能源工程学院，湖南邵阳422004；

2.高效动力系统智能制造湖南省重点实验室，湖南邵阳422004；

3.三一汽车起重机械有限公司，湖南长沙410000）

摘要：该文针对某50 T汽车起重机油冷器胀裂漏油，导致液压系统故障的问题展开研究。通过实验测试发现油冷器胀裂损坏的直接原因：系统主卸荷阀开启时间过短，使得管路及主阀内部的压力油液迅速释放，从而在回油路上引起压力冲击。研究设计了延长卸荷阀的响应时间及优化卸荷方式的方案，削弱了压力冲击的幅度，有效避免复合动作下的短暂压力尖峰，解决了油冷器胀裂漏油的故障问题。有望为工程机械行业液压系统设计提供一定参考与借鉴。

关键词：起重机；液压系统；油冷器；胀裂失效

中图分类号：TH137.7文献标志码：A文章编号：1008-0813（2020）11-0078-04

Cracking Failure Analysis and Countermeasures of a Crane Oil Cooler

XU Yong^1,2, YANG Yao-xiang³, DING Feng³

(1. College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang422004, China;2. Key Laboratory of Hunan Province for Effcient Power System and Intelligent Manufacturing,Shaoyang422004, China;3. Sany Automobile Crane Machinery Co., Ltd., Changsha410000, China)

Abstract: This paper focuses on the hydraulic system failure of a 50T truck crane caused by the expansion and leakage of the oil cooler. Experimental tests have found that the direct cause of the oil cooler burst was due to the veryshort opening period of the main unloading valve of the hydraulic system. Therefore, the pressure oil inside the pipeline and the main valve was quickly released, causing pressure shocks in the return pipeline.Furthermore, this paper designs two strategies to solve the above problems: extending the response time of unloading and optimizing unloading methods. These strategies reduce the amplitude of the pressure shock, effectively avoid the pressure shock under the compound action, and solve the problem of the oil cooler bursting and cracking. It is expected to provide a certain reference for the design of hydraulic system in the construction machinery industry.

Key words: crane; hydraulic system; cooler; cracking failure

某型履带车辆油气悬挂系统故障仿真

赵广俊¹，吕建刚²，刘斌¹，潘峰¹

Faults Simulation of Hydro-pneumatic Suspension System in One Tracked Vehicle

ZHAO Guang-jun¹, LV Jian-gang², LIU Bin¹, PAN Feng¹

(1.32150部队36分队，河南开封475003；

2.陆军工程大学车辆工程教研室，河北石家庄050003）

摘要：为了对履带车辆油气悬挂系统进行故障分析，该文介绍了某型履带式自行火炮油气悬挂系统的结构及工作原理，分析了油气悬挂原理，利用AMESim软件建立了油气悬挂系统仿真模型，针对油气悬挂系统预充气压力不足和管路堵塞的故障进行仿真，得到大量与故障相关的参数的动态特征，为故障诊断专家系统提供故障样本参考。

关键词：油气悬挂系统；履带车辆；AMESim建模；故障仿真

中图分类号：TH137文献标志码：B文章编号：1008-0813（2020）11-0082-04

铁路客车塞拉门气动系统常见故障诊断及处理

张天霖,潘嘉合,陈辉

（南京铁道职业技术学院机车车辆学院，江苏南京210031）

摘要：铁路客车塞拉门运用广泛，目前铁路客车塞拉门主要采用电控气动形式，该文分析了塞拉门气动系统工作原理，通过对铁路客车塞拉门气动系统常见故障的分析，提出了针对性的处理措施，给出了塞拉门气动系统的使用建议，为解决实际运行中铁路客车塞拉门气动系统故障问题提供参考。

关键词：塞拉门;气动系统;故障诊断;处理

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）11-0085-03

Common Fault Diagnosis and Treatment of Pneumatic Plug Valve

Pneumatic System on Railway Passenger Cars

ZHANG Tian-lin，PAN Jia-he，CHEN Hui

（Nanjing Institute of Railway Technology Locomotive and Rolling Stock Institute, Nanjing210031, China）

Abstract: The plug door of railway passenger cars is widely used. At present, the main form of the plug door of railway passenger cars is electronically controlled pneumatic. This paper analyses the working principle of the plug door pneumatic system. Through the analysis of the common faults of the plug door pneumatic system of railway passenger cars, the paper puts forward the pertinent treatment methods, and formulates the preventive measures, in order to solve the practical operation. The failure of Pneumatic System of Pneumatic Plug Valve of Railway Passenger Car can be referred to.

Key words: pneumatic plug valve; pneumatic system; fault diagnosis; treatment

电动燃油泵故障分析和处理

赵亮,王亚飞,赵洪锋,刘伟,孟嘉嘉,张琼伟

（河南航天液压气动技术有限公司，河南郑州451191）

摘要：在航空、航天高精尖技术产业中，电动燃油泵的应用大大地简化了发动机的供油系统，优化了机械液压结构，提高了系统工作的稳定性、可靠性。该文主要针对配套某型号发动机供油系统的电动燃油齿轮泵，试验工作过程中出现的常见故障进行分析并提出相应解决措施。

关键词：电动燃油泵；齿轮泵；故障分析；处理

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0088-03

Fault Analysis and Treatment of Electric Fuel Pump

ZHAO Liang, WANG Ya-fei, ZHAO Hong-feng, LIU Wei, MENG Jia-jia, ZHANG Qiong-wei

（Henan Aerospace Hydraulic and Pneumatic Technology Co., Ltd., Zhengzhou 451191, China）

Abstract: In the aviation and aerospace high-tech industry, the application of electric fuel pump greatly simplifies the engine's oil supply system, optimize the hydraulic mechanical structure, and improve the stability and reliability of the system. This paper mainly at the fault analysis treatment of electric fuel gear pump with a certain type of engine oil supply system, in the process of test work.

Key words: electric fuel pump; gear pump; fault analysis; treatment

气缸在液压零部件加工专机上的应用

王占辉

（蚌埠液力机械有限公司，安徽蚌埠233000）

摘要：该实用新型涉及一种气动液压零部件加工专机，具体涉及一种用于液压缸零部件加工的自动钻孔、攻丝组合专机。设有可任意角度旋转的转台，转台上设有用于夹持工件的夹具体，转台上方设有气动钻孔装置及攻丝装置，钻孔装置及攻丝装置分别与设置在工作台上的立柱相连。

关键词：气动；液压零部件；专机；应用

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）11-0091-03

Application of Pneumatic Cylinder for Hydraulic Part Special Machine

WANG Zhan-hui

（Bengbu Yeli Machinery Co., Ltd., Bengbu233000, China）

Abstract: The design example relates to an automatic drilling and tapping combination device, in particular to an automatic drilling and tapping combination device for processing hydraulic cylinder parts. The turntable is provided with a turntable which can rotate at any angle, a fixture body for holding the workpiece on the turntable, a drilling device and a tapping device are arranged above the turntable, and the drilling device and the tapping device are respectively connected with the column set on the worktable.

Key words: pneumatic; hydraulic part; special machine; application

一种力反馈式电液压力伺服阀

宗满意^{1, 2}， 杨宗阳³

（1.中航工业南京伺服控制系统有限公司， 江苏南京210061；2.航空工业南京机电液压工程研究中心 航空机电系统综合航空科技重点实验室，江苏南京210061；3.陆军航空兵军事代表局驻南京地区军事代表，江苏南京210061）

摘要：电液压力伺服阀一般采用阀芯压力反馈或电反馈的反馈形式。根据喷嘴挡板式力反馈式电液流量伺服阀的特点，通过加大负重叠量，设计了使用反馈杆将阀芯位置力反馈至挡板的电液压力伺服阀。理论分析及仿真结果表明其输出压力与输入电信号呈线性关系，且负重叠越大，线性区间越大，在此基础上进行了试验验证，试验结果与仿真结果基本一致。力反馈式电液压力伺服阀动态特性高、工艺性好、滑阀级内漏可接受。可以作为电液压力伺服阀使用。

关键词：压力伺服阀；力反馈；负重叠

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）11-0093-04

A New Force Feedback Pressure Servo-valve

ZONG Man-yi^1,2，YANG Zong-yang³

（1. AVIC Nanjing Servo Control System Co., Ltd., Nanjing210061, China;

2. Aviation Key Laboratory of Science and Technology Aero Electromechanical System Integration,Nanjing Engineering Institute of Aircraft System, Nanjing210061, China；

3. Military Representative from Army Aviation Military Representative Bureau Stationed in Nanjing Region,Nanjing210061, China)

Abstract: The feedback of pressure servo-valve is normally pressure feedback on spool or electrical feedback by sensor. Base on the single output nozzle-flapper force feedback Electro-hydraulic flow servo-valve, designs a new force feedback pressure servo-valve by enlarge the underlap, using a rod feedback the position of the spool to the flapper by force. Theoretical and simulation analysis results indicate a linear relationship between the output pressure and the input current of valve, and the greater the underlap the larger the linear interval. The valve also has the characteristics of high dynamic, good process and acceptable leakage, can be used as Pressure Servo-valve.

Key words: pressure servo valve; force-feedback; underlap