工程机械液力传动油性能要求及发展趋势

姜禹，徐晶晶，高洁，张伟光，樊爽，黄东升

（中国石油大连润滑油研究开发中心，辽宁大连116031）

摘要： 液力传动油作为工程机械核心部件中的工作介质，其性能需要满足很高的要求。该文对液力传动油的性能进行介绍，并对国内外液力传动油技术进行对比，特别是在液力传动油摩擦特性方面，目前，国内液力传动油技术较国外液力传动油技术还有一定的差距。

关键词： 工程机械；液力传动油；摩擦特性；发展趋势

中图分类号：TH137;TE626.38文献标志码：A文章编号：1008-0813（2020）04-0001-05

Performance Requirements and Development Trend of Hydraulic

Transmission Oil for Construction Machinery

JIANG Yu, XU Jing-jing, GAO Jie, ZHANG Wei-guang, FAN Shuang, HUANG Dong-sheng

（Petro China Dalian Lubricating Oil R&D Institute, Dalian116031, China）

Abstract:  Hydraulic transmission oil is the working medium in the core components of engineering machinery, and its performance needs to meet high requirements. In this paper, the performance of hydraulic transmission oil is introduced, and the hydraulic transmission oil technology at home and abroad is compared. Especially in terms of the friction characteristics of hydraulic transmission oil, advanced foreign hydraulic transmission oil technology is still superior to that of domestic hydraulic transmission oil to some extent.

Key words: construction machinery; hydraulic transmission oil; friction characteristics; development trend

履带式高空作业车行走液压系统的设计

董洪月，张泽华，闫晓玲

（徐州海伦哲专用车辆股份有限公司,江苏徐州221004）

摘要： 履带式行走系统具有牵引力大、接地比压低、爬坡能力强、转弯半径小等优点，在工程机械领域广泛应用。基于某型号履带式高空作业车，详细介绍了该车辆行走液压系统设计方面的内容。使用表明，该设计能满足履带式高空作业车的行走要求。

关键词： 履带式；行走；液压系统；设计

中图分类号：TH137.5文献标志码：A文章编号：1008-0813（2020）04-0005-03

The Design of Travel Hydraulic System for Crawler Aerial Work Vehicle

DONG Hong-yue， ZHANG Ze-hua， YAN Xiao-ling

（Xuzhou Handler Special Vehicle Co., Ltd., Xuzhou221004, China）

Abstract:  The crawler travel system has good characteristics of bigger traction, lower ground pressure, stronger climbing ability and smaller turning radius, so it has been widely used in the engineering machinery field. Based on a crawler aerial work vehicle, the design for the travel hydraulic system is introduced. After use of the vehicle, it can meet the travel requirement.

Key words: crawler; travel; hydraulic system; design

液压系统冲击振动信号采集与分析方法研究

高立龙，李九林，陈欣鹏，蒋文峰

（陆军炮兵防空兵学院士官学校，辽宁沈阳110000）

摘要： 针对液压系统冲击故障发生时，振动信号会出现相应的时频特性的变化这一特点，该文利用锤击响应实验，采集了几种典型情况下液压系统冲击信号，并对液压冲击信号进行频谱分析，结果显示不同工况条件下液压冲击振动信号具有不同的频率特征。不同采集位置对液压冲击的具有不同的响应幅度。

关键词： 液压冲击；振动信号；频谱分析；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0008-05

Study on Signal  Acquisition and Analysis Method of Hydraulic

System Shock Vibration

GAO Li-long, LI Jiu-lin, CHEN Xin-peng, JIANG Wen-feng

(Noncommissioned Officer Academy, Army Artillery and Air Defense Academy, Shenyang110000, China)

Abstract:  Impact on hydraulic system fault occurs, the time-frequency characteristics of vibration signal can appear the corresponding changes in the characteristics, this paper use hammer response experiments, several typical cases collected hydraulic system impact signal, and the hydraulic impact signal spectrum analysis, the results show that under different working conditions of hydraulic impact vibration signal with different frequency characteristics. Different acquisition locations have different response ranges to hydraulic impact.

Key words: hydraulic impact; vibration signal; spectrum analysis; study

基于开关阀流量特性的气缸输出力伺服控制研究

嵇润民，林忠麟，韦青燕，黄向华

（南京航空航天大学能源与动力学院，江苏南京210016）

摘要： 该文提出了一种利用开关阀实现气缸输出力伺服控制的新方法。基于高速开关阀自身的体积流量特性，通过对4个高速开关阀开关时序的优化配置，实现气缸输出力的精确快速控制。首先研究开关阀体积流量、PWM占空比和阀进出口压差三者之间的关系，并将其与模糊控制器相结合，建立输出力伺服控制的闭环算法。在此基础上再结合将充放气阀同时打开，调节充放气阀关闭的时间差的错时方法与模式切换设计实现输出力的伺服控制。最后搭建了气缸输出力伺服控制试验平台，开展了试验验证。结果表明，该文所提出的方法能实现准确快速的阶跃控制且稳态误差低于0.5%，并能够较好地跟踪上0.4 HZ的高频正弦和0.1 HZ的低频正弦指令信号。

关键词： 高速开关阀；体积流量特性；模糊控制；错时调制；力控制

中图分类号：TH138.7文献标志码：A文章编号：1008-0813（2020）04-0012-07

Research on Servo Force Control System for Pneumatic Cylinder Based on On-off Valves Volume Flow Characteristics

JI Run-min, LIN Zhong-lin, WEI Qing-yan, HUANG Xiang-hua

（College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,

Nanjing210016, China）

Abstract:  This paper presents a new method for the servo force control of a pneumatic cylinder. Based on the volume flow characteristics of four on-off valves, the accurate and fast control of the cylinder output force is achieved by optimizing the switching time of four high-speed on-off valves. Firstly, the relationship of the volume flow rate of on-off valves, the PWM duty cycle and the pressure difference between valve's inlet and outlet is studied. Then, combined with the fuzzy logic controller, a closed-loop algorithm of the servo force control of a pneumatic cylinder is built. Furthermore, a way called time interlaced modulation which is realized by adjusting the opening time of the charging and discharging valves, and the mode-switching strategy design are used. Finally, the experiment platform is built and the test is carried out. The results show that the step force control can be achieved accurately with no overshoot and steady-state error is less than 0.5%. The force control system can also track a 0.4Hz high-frequency sinusoidal signal and a 0.1Hz low-frequency sinusoidal signal.

Key words: high-speed on-off valve; volume flow characteristics; fuzzy logic control; time Interlaced modulation; force control

基于有限元的大流量换向阀仿真分析及结构优化

迟英姿，许凌，张蓉

(南京工业大学浦江学院，江苏南京211134)

摘要： 为了提高大流量换向阀的设计能力，该文采用ANSYS仿真平台对大流量换向阀仿真分析及结构优化。研究结果表明：撞击阶段应力集中区域基本出现在二级阀芯径向进油口部位，此时形成的最大应力等于 24.26 MPa，明显比682 MPa的材料屈服极限更低。进液阀套达到了271.83 MPa的最大压应力，但明显低于682 MPa的屈服极限，表明壁厚满足设计标准。进液阀套形最大应力出现在阀套内部，跟瞬态冲击条件下最大应力出现区域存在明显差异。二级阀芯最大应力都出现于阀芯部位，完成结构优化之后，二级阀芯的最大应力发生了显著降低，其余各部位的应力也显著减小，可以满足设计标准。

关键词： 换向阀；有限元；仿真分析；结构优化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0019-04

Simulation Analysis and Structure Optimization of High Flow Directional Valve Based on Finite Element Method

CHI Ying-zi, XU Ling, ZHANG Rong

(Pujiang College, Nanjing University of Technology, Nanjing211134, China)

Abstract:  in order to improve the design ability of large flow directional valve, this paper adopts ANSYS simulation platform to analyze and optimize the structure of large flow directional valve.The results show that the stress concentration area in the impact stage is basically at the radial inlet of the secondary spool, and the maximum stress formed at this time is equal to 24.26 MPa, which is obviously lower than the yield limit of 682 MPa material.The inlet valve sleeve reached the maximum compressive stress of 271.83 MPa, but was significantly lower than the yield limit of 682 MPa, indicating that the wall thickness met the design standard.The maximum stress of inlet valve sleeve appears inside the valve sleeve, which is obviously different from the area where the maximum stress appears under transient impact condition.The maximum stress of the secondary spool occurs at the position of the spool. After the completion of structural optimization, the maximum stress of the secondary spool is significantly reduced, and the stress of other parts is also significantly reduced, which can meet the design criteria.

Key words: directional valve; finite element; simulation analysis; structure optimization

不同活塞杆用密封件应力松弛现象研究

赵敏敏¹，武宝喜²，黄乐¹，夏迎松³，刘新梅⁴

（1.广州机械科学研究院有限公司，广东广州510700;

2.安钢集团冷轧有限责任公司，河南安阳455002；

3.安徽中鼎密封件股份有限公司，安徽宣城242300;

4.广州国机智能橡塑密封科技有限公司，广东广州510700）

摘要： 该文利用广州机械科学研究院有限公司自有的油封径向力测试仪以及定制加工的轴套对Y圈，轴用方形圈，轴用阶梯圈以及V组等4种不同类型的活塞杆用橡塑密封件在特定温度下以及在宽温域下的应力松弛现象进行了研究。结果表明，随着温度的升高以及时间的推移，4种同一轴径、不同材料、不同结构形式的活塞杆用密封件均出现了应力松弛的现象，且不同密封件，其径向力初始值以及应力松弛的规律不同。

关键词： 活塞杆用密封件；应力松弛；径向力；研究

中图分类号：TB42;TH132.4文献标志码：A文章编号：1008-0813（2020）04-0022-04

Stress Relaxation Research of Seals for Different Piston Rods

ZHAO Min-min¹, WU Bao-xi², HUANG Le¹, XIA Ying-song³, LIU Xin-mei⁴

（1. Guangzhou Mechanical Engineering Research Institute Co., Ltd., Guangzhou510700, China;

2. Anyang Iron & Steel Group Co., Ltd., Anyang455002, China;

3. Anhui Zhongding Sealing Parts Co., Ltd.,Xuancheng242300, China;

4. Guangzhou Guoji Intelligent Rubber & Plastic Sealing Technology Co., Ltd., Guangzhou510700, China）

Abstract:  This paper studies the stress relaxation of Y-ring, square ring, step ring and V-group, four different types rubber and plastic seals at specific temperatures and over a wide temperature range, which utilizing the oil seal radial force tester of Guangzhou Mechanical Engineering Research Institute Co., Ltd. and the custom-made bushings. The results show that, with the increase of temperature and the passage of time, it has stress relaxation phenomenon of four types of piston rod seals with the same shaft diameter, different materials and different structural forms. And different seals, the initial value of radial force and the law of stress relaxation are different.

Key words: piston rod seal; stress relaxation; radial force; research

某型发动机油封装置的设计

蒋龙,李霞

（航空工业西飞公司，陕西西安710089）

摘要： 飞机发动机工作性能的好坏将直接危及飞机的飞行安全，发动机油封是发动机在贮藏和运输时防止其零件发生锈蚀的主要措施。传统的油封装置为加热型，存在效率低、准备时间长和安全风险高等弊端，随着飞机装备数量增大，加热型的油封装置已不能满足用户需求，新设计了具有真空脱水、双动力源油封和增加自循环清洗功能的油封装置。

关键词： 油封；装置；发动机；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0026-04

Design of Aircraft Engine Oil Seal Device

JIANG Long, LI Xia

（AVIC Xi'an Aircraft Industry (Group) Company Ltd., Xi'an710089, China）

Abstract:  the aircraft engine as the core of the aircraft power plant, its performance will directly endanger the safety of flight, the engine oil seal device is the engine in storage and transportation to prevent the main measures of its parts rust. The traditional oil seal device, which has the disadvantages of low efficiency, long preparation time and high safety risk. With the increase of aircraft equipment, the heating oil seal device can no longer meet the user's needs, The new design has the functions of vacuum dehydration, dual power source oil seal and increasing self-circulation cleaning.

Key words: oil seal； device； engine； design

一种多功能液压试验台的设计

陈忱，何磊，王猛，王光平

（中铁工程机械研究设计院有限公司，湖北武汉430000）

摘要： 设计了一种多功能液压试验台，介绍了其工作原理、系统组成及主要技术参数。结合企业产品设计研发需要，试验台能满足液压阀、液压缸等多项测试。通过对试验台数据测试和数据采集系统的集成设计，设计开发了适合该试验台的数据分析软件。

关键词： 液压试验台；测试；控制系统；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0029-03

Design of a Multifunctional Hydraulic Test Bench

CHEN Chen, HE Lei, WANG Meng, WANG Guang-ping

（China Railway Engineering Machinery Research & Design Institute Co,. LTD.， Wuhan430000, China）

Abstract:  This paper introduces a kind of design of a multifunctional hydraulic test bench、working principle、system function integration and main technical parameters. According to the product design and research and development needs of the enterprise, the test bench can meet the hydraulic valve, hydraulic cylinder and other tests. Through the integrated design of the data testing and data acquisition system of the test bench, the data analysis software suitable for the test bench is designed and developed.

Key words: hydraulic test bench; test; control system; design

基于AMESim的柱塞泵LR控制特性研究

刘雨¹，张兴越²，王晋芝¹

（1.力源液压(苏州)有限公司，江苏苏州215151； 2.中航力源液压股份有限公司，贵州贵阳550018）

摘要： 该文简述了L11V变量泵恒功率控制（LR）的工作原理，通过对LR变量机构进行分析，建立了柱塞泵LR控制的数学模型，得出了可变力臂与斜盘摆角的匹配性是决定LR控制性能优劣的关键，在AMESim中利用平面机构库与液压元件库搭建了仿真模型，并根据理论与仿真结果对L11V某型号的LR控制机构进行了优化，最后，通过样机试验验证了设计参数的正确性。

关键词： LR；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）04-0032-05

Study on LR Control Characteristics of Piston Pump Based on AMESim

LIU Yu¹, ZHANG Xing-yue², WANG Jin-zhi¹

（1. Liyuan Hydraulic (SuZhou) Co., Ltd., Suzhou215151, China;

2. AVIC Liyuan Hydraulic Inc., Guiyang550018, China）

Abstract:  The paper introduces the working principle of the L11V variable piston pump withthe constantpower control (LR).Through analysis of LR variable mechanism, established the mathematical model of piston pump LR control. The key of LR control performance is the fitting of variable arm and swashplate angle are given. Second, used thePlanar Mechanical Library and Hydraulic Component Design Library establishedsimulation model based on AMESim software, and optimized the LR control mechanism for the certain product of L11V based on the results of theory and simulation, finally, through the experiment verify the correctness of the related design.

Key words: LR; control characteristics; AMESim; study

轴向柱塞泵压力脉动特性优化与改进方案

王祥

(中航力源液压股份有限公司,贵州贵阳550018)

摘要： 该文提供轴向柱塞泵压力脉动特性的优化改进方案，以提高泵的可靠性和使用寿命，文中以试验数据和使用效果为基础数据进行分析，通过改进配油盘结构来减小压力脉动和噪声，并利用高精度仪器分析及验证改进效果。

关键词： 轴向柱塞泵；压力脉动特性；结构改进；分析及验证

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0036-04

Optimization and Improvement of Pressure Pulsation Characteristics for Axial Piston Pumpd

WANG Xiang

（AVIC Liyuan Hydraulic Co., Ltd., Guiyang550018, China）

Abstract:  This paper provides the optimization and improvement scheme of pressure pulsation characteristics of axial piston pump to improve the reliability and service life of the pump. This paper analyzes the data based on test data and service effect, reduces pressure pulsation and noise by improving the valve plate structure, and use high-precision instruments to analyze and verify the improvement effect.

Key words: axial piston pump; pressure pulsation characteristic; structure improvement; analysis and validation

不同阀芯颈部直径对液压锥阀阀芯作用力的影响研究

石金艳¹,李辉²

（1.湖南铁道职业技术学院，湖南株洲412001；2.四川川润股份有限公司，四川成都610031）

摘要： 采用软件I-deas建立液压锥阀三维模型并对网格进行划分，运用CFD方法对液压锥阀进行解析,得到阀芯颈部直径对液压锥阀阀芯作用力的影响规律。其结果表明：在阀口开度大小相同的情况下，液压锥阀的阀芯颈部直径变化对阀芯作用力及稳态液动力的影响很小。

关键词： 液压锥阀；阀芯作用力；稳态液动力；影响

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0040-03

Influence of Different Cone Neck Diameter on Hydraulic Poppet Valve Cone Resistance

SHI Jin-yan¹, LI Hui²

（1. Hunan Railway Professional Technology College, Zhuzhou412001, China;

2. Sichuan Chuanrun Ltd., Chengdu610031, China）

Abstract:  A three-dimensional model of the hydraulic poppet valve was established by using software I-deas. The simulation of the poppet valve was studied by using the computational fluid dynamics(CFD) method. The regularity of the cone neck diameter on the cone resistance and steady flow force of the hydraulic poppet valve was obtained. The results show that when the opening size of the valve is the same, the value of the diameter of the valve cone neck does not cause changes in the cone resistance and steady flow force.

Key words: Hydraulic poppet valve; cone resistance; steady flow force; influence

某升降锁紧液压系统的维修性设计研究

虞军胜，李敏，周黎

（北京航天发射技术研究所，北京100076）

摘要： 某升降锁紧液压系统具有元件数量多、要求工作待机时间长、系统可靠性要求高等特点，对其可维修性提出了更高要求。结合某升降锁紧液压系统工作原理，制定了维修性设计原则，从测试诊断性设计、维修可达性设计、防差错设计、冗余容错设计和维护保养设计等方面总结维修性设计要点，根据系统实际工况和维修要求，采取了针对性的可维修性设计，有利于改进完善和提高设备可维修性，对其他液压系统可维修性设计也提供一些借鉴和参考。

关键词： 维修性；升降；锁紧；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0042-05

Research on Maintainability Design of a Lifting and Locking Hydraulic System

YU Jun-sheng, LI Min, ZHOU Li

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

Abstract:  A lifting and locking hydraulic system has many components, long standby time and high reliability requirements, which put forward higher requirements for its maintainability. Combining with the working principle of a lifting and locking hydraulic system, the principle of maintainability design is formulated. The main points of maintainability design are summarized from the aspects of test diagnostic design, maintenance accessibility design, error-proof design, redundant fault-tolerant design and maintenance design. According to the actual working conditions and maintenance requirements of the system, targeted maintainability design is adopted, which is beneficial to improving and improving the equipment. Maintainability can also provide some reference for the maintainability design of other hydraulic systems.

Key words: maintainability; lifting; locking;  hydraulic system

伺服作动器活塞杆行进中抖动问题研究

李彧，许文波，李红伟

（北京精密机电控制设备研究所，北京100076）

摘要： 该文针对液压伺服系统批生产中，活塞杆在行进中出现抖动，经分析是合成膜电位计工作中产生扰动电压，系统响应了扰动电压。为此分析了扰动电压产生机理，并在此基础上研制了低比重硅微粉合成膜电位计，有效解决了作动器活塞杆行进中抖动问题。

关键词： 伺服作动器；活塞杆；抖动；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0046-03

Research on Shake of Servo Actuator Piston Rod

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

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

Abstract:  In this paper, in the batch production of a hydraulic servo actuator for aerospace, the piston rod shakes during the march. The analysis that the perturbation voltage is generated in the work of the synthetic membrane photometer, and the system responds to the perturbation voltage. To this end, the perturbation voltage generation mechanism is analyzed, and on this basis, a low-gravity silicon power synthetic membrane photometer is developed, which effectively solves the problem of jitter in the movement of the actuator piston rod.

Key words: actuator; piston rod; shake; research

浅谈液压夹具在转向油缸铸造缸盖加工上的应用

刘碧,张勇

（安徽合力蚌埠液力机械有限公司,安徽蚌埠233030）

摘要： 随着液压夹具在机械加工中运用推广，该公司引用液压夹具多年来取得一定成效，文章针对转向油缸的铸造缸盖铣、钻序前后加工工装进行对比分析，重点突出应用全自动液压夹具后可提升装夹效率、加工质量以及降低劳动强度等，可以在不添置设备的情况下，满足产能提升的需求。

关键词： 液压缸；转向油缸；铸造缸盖；液压夹具

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0049-03

Application of Hydraulic Fixture for Steering Cylinder Head Casting Processing

LIU Bi, ZHANG Yong

(Anhui Heli Bengbu Hydraulic Machinery Co., Ltd., Bengbu233030, China)

Abstract:  With the application and popularization of hydraulic fixture in mechanical processing, our company has achieved certain results by using hydraulic fixture for many years. This paper makes a comparative analysis of the casting cylinder head milling and drilling sequence processing tooling for steering cylinder. It emphasizes that the application of fully automatic hydraulic fixture can improve clamping efficiency, processing quality and reduce labor intensity, so as to meet the demand of productivity improvement without additional equipment.

Key words: hydraulic cylinder; steering cylinder; cylinder head casting; hydraulic fixture

核级直行程气动执行机构地震特性分析

杨亚东

（常州电站辅机股份有限公司，江苏常州213100）

摘要： 随着我国核电事业的发展，对气动执行机构的要求越来越高，根据华龙一号项目新要求，研发了新型的满足核电鉴定要求的核级直行程气动执行机构，在鉴定试验中，地震模拟试验是重点，该文主要分析了核级直行程气动执行机构在地震模拟鉴定试验中的试验步骤及地震特性。

关键词： 核级气动执行机构；鉴定试验；地震加速度；特性分析

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）04-0051-03

Seismic Analysis of Nuclear Grade Linear Pneumatic Actuator

YANG Ya-dong

(Changzhou Power Station Auxiliary Equipment Co., Ltd., Changzhou213100, China)

Abstract:  With the nuclear power development in China, the requirements for pneumatic actuator are higher and higher. According to the new requirements of Hualong No.1 Project, a new type of nuclear grade linear pneumatic actuator is developed to meet the requirements of nuclear power equipment qualification. Seismic test is the key point in the equipment qualification test. So the seismic test procedure and seismic characteristics of nuclear grade linear pneumatic actuator are analyzed in this paper.

Key words: nuclear grade pneumatic actuator; qualification test; seismic acceleration; characteristic analysis

中板轧机HGC液压伺服系统优化改造研究

王渝

（中冶赛迪工程技术股份有限公司，重庆401122）

摘要： 通过对某钢厂中板轧机HGC液压伺服系统存在的问题分析，对其进行改造，解决了原有系统存在的问题。根据对改造前后阶跃响应数据的对比分析，改造后的HGC液压伺服系统的稳定性、快速性、控制精度和可靠性均比改造前得到了较大的提升。

关键词： 中板轧机；HGC液压伺服系统；研究；改造

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0054-03

Research on HGC Hydraulic Servo System Optimization Transformation of Medium Plate Mill

WANG Yu

(CISDI Engineering Co., Ltd., Chongqing401122, China)

Abstract:  The existing problems of servo hydraulic HGC system of a plant's medium plate mill were analyzed. The reforms were carried on to solve the existing problems of the original hydraulic system. According to the contrast analysis of step response datum before the renovation and after, the conclusion is that the rapid response, stability, reliability and control accuracy of the original servo hydraulic HGC system were improved.

Key words: medium plate mill； HGC hydraulic servo system； research； transformation

飞机充气设备综合化设计

柳艳琴，李虎祥，王聪

（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： 该论文介绍了飞机充气设备的用途，分析了原充气设备的原理及其存在的问题。根据飞机机载设备充气要求，提出了充气设备综合化设计方案，给出管路设计、控制阀和压力表的选型依据。最后指出飞机充气设备发展方向。

关键词： 充气设备；综合化；减压阀；设计

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）04-0056-03

Integrated Design of an Aircraft Inflatable Equipment

LIU Yan-qin, LI Hu-xiang, WANG Cong

(AVIC Xi'an Aircraft Industry （Group） Company Ltd., Xi'an710089, China)

Abstract:  This paper introduces the use of aircraft inflatable equipment. The principle and probllems of the original inflatable equipment are analyzed. According to the aeration requirements of airborne equipments, a comprehensive design scheme of inflatable equipment is proposed. It gives out selection basis of the equipment's pipeline design, control valves and pressure gauges. Finally, it points out the development directions of aircraft inflatable equipment.

Key words: inflatable equipment； integrated; pressure reducing valves; design

液压泵、液压马达高低温试验平台的设计

郑智剑^1,2，王洋定^1,2，吴世锋³，李晋³

（1.宁波市产品质量检验研究院,浙江宁波315048）；

2.国家智能制造装备产品质量监督检验中心（浙江）,浙江宁波315800）；

3.北京华德液压工业集团有限责任公司,北京100176）

摘要： 设计了一套液压泵、液压马达高低温试验台，完成了配套测试处理软件的开发。该试验由由高/低温试验箱、高/低温油源、试验驱动装置、测控系统、循环及冷却系统等五部分组成。试验台最大流量为360 L/min，最高压力等级为40 MPa，液压油油温的控制范围为（-25~100）℃，环境控制温度为（-25~100）℃，油温和环境温度控制稳定性为±2℃，基本能够满足中、小流量液压泵、液压马达的高、低温测试需求。目前，该试验台已用于液压泵、液压马达高、低温性能的第三方检验检测。

关键词： 液压泵；液压马达；高温试验；低温试验；试验研究

中图分类号：TH137.1文献标志码：A文章编号：1008-0813（2020）04-0059-04

Design of High and Low Temperature Performance Testing Platform for

Hydraulic Pump and Motor

ZHENG Zhi-jian^1,2, WANG Yang-ding^1,2, WU Shi-feng³, LI Jin³

（1. Ningbo Academy of Product Quality Inspection, Ningbo315048, China; 2. National Intelligent

Manufacturing Equipment Quality Supervision & Inspection Center (Zhejiang) , Ningbo315800, China;

3. Beijing Huade Hydraulic Industrial Group Co., Ltd., Beijing100176, China)

Abstract:  A platform for testing the performance of hydraulic pump and motor in the high and low temperature is designed, and the matching software is also completed. The platform consists of the high-low temperature test chamber, the oil source, power system, measurement and control system and circulating cooling system. The maximum flow rate of the platform is 360 L/min, the maximum testing pressure is 40 MPa, the temperature of the hydraulic oil and the environment can be control in the range of -25℃ to 100℃ with the temperature stability of ±2℃. Therefore, the platform can be used in the high and low temperature test of hydraulic pumps and motors with medium and small flow rates. At present, the platform is used for the third-party inspection on the high and low temperature performance of hydraulic pumps and motors.

Key words: hydraulic pump; hydraulic motor; high temperature test; low temperature test; experimental research

电-液混合动力试验台控制系统研制

李顺，刘桓龙

（西南交通大学先进驱动节能技术教育部工程研究中心，四川成都610031）

摘要： 电-液混合动力系统具有节能环保、续航里程长等优势，针对搭建的电-液混合动力实验平台，设计了应用于该平台的测控系统。测控系统以PC机为上位机、SIMATIC S7-1200PLC为下位机对实验台进行控制与数据采集，通过以太网实现上下位机间的数据传输。上位机监控软件由LabVIEW开发，具有数据采集、分析、显示、存储和报表打印功能，监控界面具备易于操作、可扩展性强、维护方便等优点。实验验证了测控系统的可行性，能满足实际使用需求，为在该试验台上进一步深入研究奠定了基础。

关键词： 电-液混合动力；测控系统；数据采集；研究

中图分类号：TH137；TP29文献标志码：A文章编号：1008-0813（2020）04-0063-05

Design of Measurement and Control System for Electro-hydraulic Hybrid Test Bench

LI Shun, LIU Huan-long

(Engineering Research Center of Advanced Driving Energy-saving Technology, Ministry of Education,

Southwest Jiaotong University, Chengdu610031, China)

Abstract:  The electro-hydraulic hybrid system has the advantages of energy conservation, environmental protection and long cruising range. The measurement and control system is developed in this paper, which is applied to the electro-hydraulic hybrid test bench. The system is composed of a host and a lower computer, and the host computer in the system is PC while the lower computer is SIMATIC S7-1200PLC, using industrial Ethernet to achieve data transmission. Upper-computer software is developed by LabVIEW. It has the functions of data acquisition, analyzing, displaying, storing system parameters and printing reports, which has advantages of friendly interface, expansibility, easy operation and convenient maintenance, etc. The feasibility of this system is validated through the test bench. The measurement and control system can achieve the functions of system status monitoring and control, and satisfy the meets of actual operation, which lays a foundation for further in-depth investigation on the test bench.

Key words: electro-hydraulic hybrid; measurement and control system; data acquisition; design

全安全钳液压盘式刹车液压系统设计

段武^1，2，许永雷¹，于浩^1，2，王新卫¹，张利贤¹

（1.宝鸡石油机械有限责任公司,陕西宝鸡721002；2.国家油气钻井装备工程技术研究中心,陕西宝鸡721002）

摘要： 针对全安全钳液压盘式刹车开展液压系统设计，从液压盘式刹车实现驻车刹车、紧急刹车功能等方面对该液压系统原理进行详细描述，优化相关设计，确保液压盘式刹车液压系统设计合理、可靠，满足现场使用要求。

关键词： 液压盘式刹车；控制阀；常闭钳；驻车制动；紧急制动

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0067-02

Design of Full Safety Clamp Hydraulic Disk Brake System

DUAN Wu^1，2， XU Yong-lei¹， YU Hao^1，2, WANG Xin-wei¹， ZHANG Li-xian¹

(1. Baoji Oilfield Machinery Co., Ltd., Baoji721002, China;

2. National Oil & Gas Drilling Equipment Engineering Research Center, Baoji721002, China)

Abstract:  Aim to the full safety clamp hydraulic disk brake system, the hydraulic system principle of disk brake parking and emergency brake function were present. Then the system was optimized, and ensure the hydraulic system was proper designed and reliable to meet the requirement of field use.

Key words: hydraulic disk brake; control valve; normal closed calipe; parking brake; emergency brake

液压闭式系统克令吊应急下放功能优化设计

杨春鱼

（上海振华重工(集团)股份有限公司，上海 200125）

摘要： 液压克令吊是船舶上普遍使用的一种装卸货设备, 在闭式系统中，液压泵的进油管直接与执行元件的回油管相连，工作液体在系统的管路中进行封闭循环。闭式系统结构较为紧凑，油口空气接触机会较少，空气不易渗入系统，故传动的平稳性好。该文通过对闭式液压系统克令吊应急下放功能优化设计，在满足各船级社入级要求的基础上，大幅提高了克令吊设备的安全性和可靠性，避免了克令吊设备出现故障而导致事故发生的潜在风险。

关键词： 液压；闭式系统；克令吊；应急下放

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0069-03

Optimization Design of Emergency Lowering Function for Closed Hydraulic System Crane

YANG Chun-yu

(Shanghai Zhenhua Heavy Industry Co., Ltd., ZPMC, Shanghai200125, China)

Abstract:  The hydraulic system crane is commonly used in ships. The oil inlet pipe of the hydraulic pump is directly connected with the oil returning pipe of the hydraulic motor. The closed hydraulic system has a compact structure. Less air is contacted the oil. The air is not easy to penetrate into the system, so the stability of the transmission is good. In this paper, through the optimization design of the emergency lowering function of the closed hydraulic system, the safety and reliability of the crane are greatly improved. The potential risk of accidents caused by the failure of the crane is avoided.

Key words: hydraulic; closed system; crane; emergency lowering

基于支持向量机和顺序前项选择算法的PNN风电机组液压变桨的故障诊断

王绍平¹,王冰¹,丁杰²

(1.河海大学能源与电气学院，江苏南京211100；2.国网电力科学研究院，江苏南京211100)

摘要： 针对液压变桨距系统的强耦合、非线性，以及液压变桨距故障发生原因复杂、故障单一造成的定位问题，该文提出基于支持向量机和顺序前项选择算法的概率神经网络诊断方法。首先，选取SCADA数据的特征值为输入，桨距角为输出，利用支持向量机进行模型的回归，得出桨距角输出的预测值；接着，将测量值与预测值带入顺序前项选择算法，挖掘和发现特征与故障之间的关系，评估各特征之间的重要性，并选出最好的一组特征集合；最后，建立变桨距概率诊断模型，将所选的数据送到故障诊断模型进行训练，再用所选数据进行测试，定位出变桨距系统的故障原因。实验分析表明：基于支持向量机和顺序前项选择算法的概率神经网络液压变桨距故障诊断方法可以有效地分辨出不同故障，并且诊断的精确度得到了提高。

关键词： 风电机组；液压变桨距系统；支持向量机；顺序前项选择算法

中图分类号：TH137;TM614文献标志码：A文章编号：1008-0813（2020）04-0072-07

Fault Diagnosis of PNN Hydraulic Variable Pitch Based on SVM and Sequential Selection Algorithm

WANG Shao-ping¹, WANG Bing¹, DING Jie²

(1. Collage of Energy and Electricity, Hohai University, Nanjing211100, China;

2. State Grid Electric Power Research Institute, Nanjing211100, China)

Abstract:  In view of the strong coupling and nonlinearity of hydraulic variable pitch system, as well as the location problem caused by the complex and single fault of hydraulic variable pitch fault, this paper proposes a probabilistic neural network diagnosis method based on support vector machine and sequential selection algorithm. Firstly, the characteristic values of SCADA data were selected as input, and the pitch Angle as output. Then, the model regression was carried out using support vector machine, and the predicted value of pitch Angle output was obtained. Then, the measured value and predicted value are brought into the selection algorithm in the foregoing order, the relationship between features and faults is mined and discovered, the importance of each feature is evaluated, and the best set of features is selected. Finally, a variable pitch probabilistic neural network diagnosis model is established, and the selected data is sent to the fault diagnosis model for training, and then the selected data is tested to locate the fault cause of the variable pitch system. Experimental analysis shows that the probabilistic neural network fault diagnosis method based on support vector machine and sequential selection algorithm can effectively distinguish different faults, and the accuracy of diagnosis is improved.

Key words: wind turbine; hydraulic variable pitch system; support vector machine; sequential selection algorithm

挖掘机安装防爆阀后斗杆回收动作异常故障分析

韦苏彬,胡勇

Abnormal Fault Analysis of Bucket Rod Recovery Action After Installing

Explosion-proof Valve in Excavator

WEI Su-bin, HU Yong

(广西柳工机械股份有限公司，广西柳州545007)

摘要： 该文针对挖掘机安装防爆阀后斗杆回收动作自动回收至末端，根据原理图识别可能原因，利用压力表检测和排除法逐一排查，最终分析得出缓冲阀与防爆阀同时安装后防爆阀Pal油口软管连接不合理导致故障发生。经研究分析将软管改到缓冲阀进油口D口，经过压力测试压力正常认证整改有效。

关键词：挖掘机；防爆阀；缓冲阀；斗杆回收

中图分类号：TH137文献标志码：B文章编号：1008-0813（2020）04-0078-03

一种射流管式高频响开关阀设计

何汉林

（穆格控制系统（上海）有限公司，上海200120）

摘要： 文章阐述了一种快速动作的射流管式高频响开关阀，用力矩马达和射流管作为先导级来驱动阀芯。该阀响应快，体积小，发热少；同时也不存在传统伺服阀容易零偏的短板，抗污染能力也大为提高。

关键词： 高频响；开关阀；射流管；抗污染

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0081-03

Design of High Frequency Response Switch Valve with Jet Pipe

HE Han-lin

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

Abstract:  This paper describes a fast-acting high-frequency switching valve with jet pipe, which uses tourque motor and jet pipe as the pilot stage to drive the spool. The valve has fast response, small volume and less heat. At the same time, there is no short plate of traditional servo valve which is easy to zero offset, and the anti-pollution ability is greatly improved.

Key words: high-frequency; switching valve; jet pipe; anti-pollution

一种新型铝合金铸造用内导式液压缸的研究及应用

唐建光，黄智武，刘广洋，潘豪，樊桂萍

（韶关液压件厂有限公司，广东韶关512029）

摘要： 介绍了这一种新型铝合金铸造用内导式液压缸的设计及应用，重点介绍了其结构设计的原理、相关计算，关键零部件的加工工艺要求等，为从事铸铝合金用内导式液压缸的研究和应用者提供参考。

关键词： 内导式液压缸；铝合金铸造；研究；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0083-03

Research and Application of a New Type Inner Guide Hydraulic Cylinder for

Aluminum Alloy Casting

TANG Jian-guang, HUANG Zhi-wu, LIU Guang-yang, PAN Hao, FAN Gui-ping

(Shaoguan Hydraulic Co., Ltd., Shaoguan512029, China)

Abstract:  The paper introduces Research and Application of a new type Inner Guide Hydraulic cylinder for Aluminum alloy Casting, focusing on the structural design's principle, relevant calculation, processing technology requirements of key components, etc., providing reference for the research and application of internal guide hydraulic cylinder for casting aluminum alloy.

Key words: inner guide hydraulics cylinder; aluminum alloy casting; research ; application

一种液压缸活塞类零件焊接避免气孔的新方法

张勇，刘碧

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要： 焊接作为机械制造行业中的一种工艺方法，在机械加工中被广泛应用，而焊接的质量则更多地取决于其工艺过程，在合理的产品结构基础上靠反复的工艺评定来确定最可靠的工艺参数，以稳定的工艺参数和过程来保证产品质量，而事后检测则往往是不得已而采取的高成本、低可靠性的控制手段。液压缸活塞杆与活塞之间的焊接是不允许在高压下有任何的泄漏，该文通过对造成焊接气孔的失效分析与反复的试验研究，结合生产实际探索出的一种低成本高效率的新型焊接方法，从而减少甚至避免焊接缺陷的产生，保证产品焊接质量。

关键词： 液压缸；活塞；焊接；气孔

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）04-0086-03

A New Method of Avoiding Air Hole for Welding Hydraulic Cylinder Piston Parts

ZHANG Yong, LIU Bi

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

Abstract:  Abcde As a process method in the mechanical manufacturing industry, welding is widely used in the mechanical processing, and the quality of welding depends more on its process. On the basis of reasonable product structure, the most reliable process parameters are determined by repeated process evaluation, and the product quality is guaranteed by stable process parameters and processes, while the post inspection is often necessary High cost and low reliability control means. The welding between the piston rod and the piston of the hydraulic cylinder is not allowed to have any leakage under the high pressure. In this paper, through the failure analysis and repeated experimental research of the welding porosity, combined with the production practice, a new welding method with low cost and high efficiency is explored, so as to reduce or even avoid the generation of welding defects and ensure the welding quality of products.

Key words: hydraulic cylinder; piston; welding; air hole