楔式闸阀密封面宽度对密封性能的影响分析

张立强^1,2，李梦科^1,2，张云杰^1,2，张延斌³

(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 温州泵阀工程研究院，浙江 温州325105；3.凯喜姆阀门有限公司，浙江 温州325024）

摘要：针对闸阀密封面局部密封比压大于材料许用比压的现象，对阀座密封面宽度进行优化设计以保证闸阀的密封性。优化前阀座密封面宽度为5 mm，在［4， 6.5］ 宽度范围内，对以0.5 mm为步长的6组模型进行数值模拟仿真，并对结果进行数值拟合，获得临界密封面宽度值，最后进行仿真试验验证。结果表明：6组模型密封比压值成线性关系，通过线性拟合得出材料许用比压150 MPa对应的临界密封面宽度为5.6 mm，数值试验验证此时密封比压为151.69 MPa，相对误差为1.13％。

关键词：密封面宽度；密封比压；线性拟合；数值模拟

中图分类号：TB42; TE832文献标志码：A文章编号：1008-0813（2020）06-0001-04

Effect of Wedge Gate Valve Seal Face Width on Sealing Performance

ZHANG Li-qiang^1,2, LI Meng-ke ^1,2, ZHANG Yun-jie^1,2, ZHANG Yan-bin³

(1. College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou730050, China;2. Wenzhou Academy of Pump and Valve Engineering，Lanzhou University of Technology，Wenzhou325105, China;3. KCM Valve Co., Ltd., Wenzhou325024, China）

Abstract: Aiming at the phenomenon that the local sealing specific pressure of gate valve sealing surface is larger than the allowable specific pressure of material, the width of sealing surface of valve seat is optimized to ensure the sealing performance of gate valve. Before optimization the sealing surface width of the valve seat is 5mm. Within the width range of ［4, 6.5］, six groups of models with 0.5mm step size are simulated by numerical simulation. The results are fitted numerically and the critical sealing surface width value is obtained. Finally, the simulation test is carried out to verify the results. The results show that the relationship between the specific pressure and the sealing surface width is linear. And the critical sealing surface width corresponding to the allowable specific pressure of 150MPa is 5.6mm by linear fitting. The numerical test verifies that the specific pressure of seal is 151.69MPa and the relative error is 1.13%.

Key words:seal surface width；sealing specific pressure；linear fitting；numerical simulation

2MW风力机液压变桨电液作动器系统设计与仿真研究

杨瑞，马超善，杨胜兵，孙霞阳，陈月娟，岳一轩

（兰州理工大学 能源与动力工程学院，甘肃 兰州730050）

摘要：根据bladed风力机载荷计算软件得到2MW风力机叶片扭转载荷，设计了一种适用于统一变桨的变桨电液作动器系统，运用AMESim软件搭建机械系统、液压系统、电机控制及电子系统，通过将叶片随风速变化的实际载荷加载到机械系统中，仿真正常关桨（-2°~90°）和开桨（90°~-2°）、正常运行发电及紧急关桨工况，结果表明电液作动器系统在正常关桨和开桨、正常运行发电工况下可以平稳无超调的达到系统给定位置，在紧急关桨工况下可以在7 s内快速关桨，保证风力机运行安全。综上，电液作动器系统设计方案可行，能够满足2MW风力机统一变桨的变桨需求，为下一步试验平台搭建提供支持。

关键词：风力机；电液作动器；设计；仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0005-07

Design and Simulation Research of 2MW Wind Turbine Hydraulic

Pitch Electro-Hydraulic Actuator System

YANG Rui, MA Chao-shan, YANG Sheng-bing, SUN Xia-yang, CHEN Yue-juan, YUE Yi-xuan

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

Abstract: According to the bladed software, the blade load of 2MW wind turbine is calculated. A pitch electro-hydraulic actuator system suitable for unified pitch is designed. The mechanical system, hydraulic system, motor control and electronic system are built by AMEsim software. The actual load of wind speed operation is loaded into the mechanical system, and the normal operation of closing (-2° to 90°) and opening (90° to -2°), the normal operation of the power generation, and the emergency operation of closing are simulated. The results show that the electro-hydraulic actuator system is in the normal off-pitch and open-pitch, normal operation. under the working condition, the system can be set to a stable position without overshoot, and the pitch can be quickly closed within 10s under the emergency shut-off condition to ensure the safe operation of the wind turbine. In summary, it shows that the electro-hydraulic actuator system is designed reasonably and can meet the pitch requirements of 2MW unified pitch.

Key words: wind turbine; electro-hydraulic actuator; design; simulation

平衡鼓结构对多级离心泵性能影响的研究

姚宝运¹,严文泽¹,刘志丹¹,杨全超²

（1.大连深蓝泵业有限公司,辽宁大连116031; 2.中核集团福建福清核电有限公司，福建福清350318 ）

摘要：该文以2台多级离心泵为研究对象，通过CFD理论分析和试验结合的方法，分析并验证几种不同结构形式的平衡鼓性能，探究影响平衡鼓性能的关键因素。结果表明：其平衡鼓间隙所在的直径、间隙长度、间隙值和单双向齿对平衡鼓泄漏量的影响远高于其他因素。

关键词：多级离心泵;平衡鼓;性能;研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0011-05

Research on Influence of Balance Drum Structure on Multistage

Centrifugal Pump Performance

YAO Bao-yun¹, YAN Wen-ze¹, LIU Zhi-dan¹, YANG Quan-chao²

(1. Dalian Deep Blue Pump Co., Ltd.，Dalian116031, China;

2. Fujian Fuqing Nuclear Power Co., Ltd.，Fuqing350318, China)

Abstract: In this paper, two multistage centrifugal pumps are taken as the research objects, and the performance of several different structural forms of balancing drums are analyzed and verified through the method of CFD theoretical analysis and experiment, and the key factors affecting the performance of balancing drums are explored. The results show that the diameter of the balance drum gap, the gap length, the gap value and the single or double-direction teeth have much greater influence on the leakage of the balance drum than other factors.

Key words: multistage centrifugal pump; balance drum; performance; research

液压缸缸筒内孔珩磨螺旋切屑分析与研究

马宝，符江，韦金钰，于铁柱

(徐州徐工液压件有限公司，江苏徐州221004)

摘要：深孔珩磨是液压缸缸筒生产制造关键核心工序之一，针对内孔珩磨出螺旋切屑问题，通过对珩磨切削理论研究，建立单个磨粒切削物理模型及磨削力的数学模型，在此基础上利用六西格玛理论筛选出关键影响因子，并对每个影响因子进行试验分析，研究得出材料本身缺陷是导致珩磨内孔出螺旋切屑直接原因，油石及珩磨参数可以在一定程度上改善该缺陷的严重程度，为液压缸缸筒珩磨加工提供理论指导。

关键词：液压缸；珩磨；分析；螺旋切屑

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0016-04

Analysis on Spiral Iron Filings for Honing Hydraulic

Cylinder Bore

MA Bao, FU Jiang, WEI Jin-yu, YU Tie-zhu

（Xuzhou XCMG Hydraulic Co., Ltd., Xuzhou221004, China）

Abstract: Deep hole honing is one of the key processes in production of hydraulic cylinder. The problem of spiral iron filings for honing, By studying honing theory, a physical model of single abrasive cutting and a mathematical model of grinding force are established. On the basis of this, six Sigma theory is used to screen the key impact factors, and each effect factor is tested and analyzed. It is concluded that the defect of material itself is the direct cause of spiral iron filings in honing hole. Oilstone and honing parameters can improve the severity of honing fine wire problem to some extent. It provides theoretical guidance for cylinder honing process.

Key words: hydraulic cylinder; honing; analysis; spiral iron filings

恒张力液压绞车的设计与仿真

于会民¹，刘可安²，严允¹

（1.上海中车艾森迪海洋装备有限公司,上海200120；

2.株洲中车时代电气股份有限公司,湖南株洲412001）

摘要：针对船用液压绞车受风浪影响的特殊工况，设计了一种基于电磁比例溢流阀的恒张力液压绞车，介绍了液压绞车的一种应用工况，解析了恒张力液压绞车的设计原理及工作过程，并对液压绞车的恒张力模式和制动缓解过程进行了仿真分析，结果表明此系统可以有效地进行缆绳恒张力控制。

关键词：液压绞车；电磁比例溢流阀；恒张力；仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0019-04

Design and Simulation of Constant Tension Hydraulic Winch

YU Hui-min¹, LIU Ke-an², YAN Yun¹

（1. CRRC SMD (Shanghai) Ltd., Shanghai200120, China;

2. Zhuzhou CRRC Times Electric Co., Ltd., Zhuzhou412001, China）

Abstract: Constant tension hydraulic winch based on electromagnetic proportional relief valve was designed for the special marine conditions. The detailed application conditions of hydraulic winch were introduced, the design principle and working process of hydraulic winch were analyzed, and the constant tension mode and brake release process of hydraulic winch were simulated and analyzed. The result shows that the system can effectively control constant tension of umbilical.

Key words: hydraulic winch; electromagnetic proportional relief valve; constant tension; simulation

采用连铸专用液压阀的轻压下系统升级改造及应用研究

赵已龙

(攀钢提钒炼钢厂，四川 攀枝花617067)

摘要：某钢厂大方坯连铸机原有轻压下系统的设计存在液压系统故障率高，无法进行不停机维护以及停机检修时间长等先天缺陷。采用中国重型机械研究院自主研制的连铸专用液压阀进行升级改造，完美解决了以上问题，并且改造成本低，施工简单，无需变动程序和工艺条件，取得了良好的经济价值。

关键词：连铸;专业液压阀;轻压下;升级改造

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0023-03

Revamping and Application of Dynamic Soft-reduction Hydraulic System with

Continuous Casting Special Hydraulic Valve

ZHAO Yi-long

(Vanadium Recovery and Steelmaking Plant of PZH Steel， Panzhihua617067, China)

Abstract: The design of the original Dynamic Soft-reduction Hydraulic System of the CCM of a steel plant has inherent defects such as high failure rate of the hydraulic system, inability to perform non-stop maintenance, and long downtime maintenance. Now the self-developed special valve for continuous casting of China National Heavy Machinery Research Institute is used to upgrade and reform, which perfectly solves the above problems, and has low reconstruction cost, simple construction, no need to change procedures and process conditions, and achieved good economic value.

Key words: continuous casting；special hydraulic valve；soft reduction；revamping

基于FluidSIM-H节流调速特性仿真实验设计与实现

江兴刚

（怀化职业技术学院，湖南怀化418000）

摘要：采用FluidSIM仿真软件建立液压回路，对手动三位四通O形换向阀的节流调速特性进行仿真实验。通过对节流元件开口度、先导式溢流阀加载虚拟设置，实现了进油节流调速空载与负载速度特性仿真实验，列出了实验数据，绘制了速度负载特性曲线，分析了液压缸空载与负载时，不同的节流元件与不同开口度对液压缸运行速度的影响，总结了节流阀和调速阀调速的优缺点。

关键词：FluidSIM-H；节流调速；仿真实验；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0026-06

Simulation Experiment Design and Implementation of Throttling and Speed

Regulation Characteristics Based on FluidSIM-H

JIANG Xing-gang

(Huaihua Vocational and Technical College, Huaihua418000, China)

Abstract: The hydraulic circuit is established by fluidsim-h simulation software, and the throttling and speed regulating characteristics of the manual three position four-way o-directional valve are simulated. Through the virtual setting of throttle element opening and pilot relief valve loading, the simulation experiment of no-load and load speed characteristics of oil inlet throttle speed regulation is realized, the experimental data is listed, the speed load characteristic curve is drawn, the influence of different throttle element and opening on the operation speed of hydraulic cylinder is analyzed when the hydraulic cylinder is no-load and load, and the adjustment of throttle valve and speed control valve is summarized Advantages and disadvantages of speed.

Key words: FluidSIM-H；throttling speed regulation；simulation experiment；design

电比例压力控制柱塞泵特性分析及其应用

王祥

(中航力源液压股份有限公司,贵州 贵阳550018)

摘要：该文对电比例压力控制柱塞变量泵的特点、功能进行介绍，详细分析其工作原理和特性，结合主机系统的功能需求和工作特征，分析其在起重机风扇冷却系统上的应用特性。

关键词：电比例压力控制；柱塞泵；特性分析；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0031-03

Characteristic Analysis and Application of Electric Proportional Pressure Control Piston Pump

WANG Xiang

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

Abstract: This paper introduces the characteristics and functions of electric proportional pressure control piston variable pump, analyzes its working principle and characteristics in detail, combines the functional requirements and working characteristics of the host system, analyzes its application characteristics in the crane fan cooling system.

Key words:electric proportional pressure control; piston pump;characteristic analysis; application

水平定向钻推拉液压系统优化研究

孙辉^1，2，3,刘灿杰²,肖刚²

(1.江苏徐工工程机械研究院有限公司，江苏 徐州221004;

2.江苏汇智高端工程机械创新中心有限公司，江苏 徐州221004;

3.高端工程机械智能制造国家重点实验室，江苏 徐州221004)

摘要：针对水平定向钻推拉系统大负载溢流工况下压力波动问题，对推拉液压系统原理与测试数据分析，开展推拉液压系统关键参数动态仿真与整机实验研究，获得LS溢流阀节流面积梯度及反馈阻尼对液压泵压力的影响规律，确定了最优反馈阻尼孔径大小，整机系统性能最优。

关键词：推拉;液压系统;水平;优化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0034-04

Optimization of Push-pull Hydraulic System for Horizontal Directional Drilling

SUN Hui^1，2，3, LIU Can-jie², XIAO Gang²

(1. Jiangsu XCMG Construction Machinery Research Institute Co. Ltd., Xuzhou 221004, China;

2. Jiangsu Advanced Construction Machinery Innovation Center Ltd., Xuzhou221004, China;

3. Stat Key Laboratory of Intelligent Manufacturing of Advance Construction Machinery, Xuzhou221004, China)

Abstract: In view of the pressure fluctuation of the horizontal directional drilling push-pull system under the condition of large load overflow, the principle and test data analysis of the push-pull hydraulic system are carried out, the dynamic simulation of the key parameters of the push-pull hydraulic system and the experimental study of the whole machine are carried out, the influence law of the throttle area gradient of LS relief valve and the feedback damping on the pressure of the hydraulic pump is obtained, the optimal feedback damping aperture size is determined, and the whole machine system is improved System performance.

Key words: push-pull; hydraulic system; horizontal; optimization

油压机充液阀结构改造

罗相文

Charging Valve Improvement for Hydraulic Press Machine

LUO Xiang-wen

（广东南方职业学院,广东 江门529040）

摘要：分析油压机中的最为常见的控制元件——充液阀（液控单向阀）内的弹簧频繁损坏原因，提出结构改造对策，经过实施验证后取得良好的改善效果。

关键词：充液阀；单向阀；改造；油压机

中图分类号：TH137文献标志码：B文章编号：1008-0813（2020）06-0038-02

一种工程机械在线检测油液清洁度和油况的液压系统

胡勇，刘晓强，刘剑

(广西柳工机械股份有限公司 挖掘机研究院，广西柳州545007)

摘要：该文介绍解决工程机械液压系统在日常作业工况中的液压油液重点参数的状态监控，并将实时监测数据反馈后台，达到实时在线监测液压清洁度和油况。具有独立先导压力油路的机械设备油液监控，机械设备包括工程机械在内的各种液压系统的设备。

关键词：在线监测；清洁度；油况；工程机械

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0040-02

A Hydraulic System for On-line Testing Oil Cleanliness and Oil

Condition of Engineering Machinery

HU Yong, LIU Xiao-qiang, LIU Jian

(Guangxi Liugong Machinery Co., Ltd., Excavator Research Institute， Liuzhou545007, China)

Abstract:  This paper introduces the solution of the hydraulic system of construction machinery in the daily operation of the state of the key parameters of hydraulic oil monitoring, and real-time monitoring data feedback background, achieve real-time online monitoring of hydraulic cleanliness and oil condition. With independent pilot pressure oil line of mechanical equipment oil monitoring, mechanical equipment including engineering machinery and a variety of hydraulic system equipment.

Key words: on-line monitoring; cleanliness; oil condition; engineering machinery

基于CFD的液压滑阀U形槽阀口的流量

特性仿真分析

石金艳¹，杨文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：采用计算流体动力学(CFD)方法对液压滑阀内流场进行求解，得到速度分布和通过阀口的流量。其结果表明：对于该U形槽，当开口较小时，流量增加很快，斜率较大，流量在开口大于2.5 mm时趋于常数。在节流口流出和流入方向下的流量曲线基本重合，流出方向的流量略大。

关键词：液压滑阀；CFD；U形槽；流量特性

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0042-02

Simulation Analysis on Flow Characteristics of Hydraulic Spool Valve U-Slot

Valve Port Based on CFD

SHI Jin-yan^1, YANG Wen¹, LI Hui²

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

2. Sichuan Chuanrun Ltd., Chengdu610031, China）

Abstract: The computational fluid dynamics (CFD) method is used to solve the flow field in the hydraulic spool valve to obtain the velocity distribution and the flow rate through the valve port. The results show that for the U-Slot groove, when the opening of the valve is small, the flow rate increases rapidly, the slope is large, and the flow rate tends to be constant when the opening is larger than 2.5 mm. The flow curves in the outflow and inflow directions of the orifice are substantially coincident, and the flow in the outflow direction is slightly larger.

Key words: hydraulic spool valve; CFD; U-slot; flow characteristics

液压同步马达在双缸起重设备的应用

刘希梁¹，冯宗焕²，时鑫¹，杨海龙¹

(1.沈阳新松机器人自动化股份有限公司，辽宁沈阳110000;

2.徐州万都机械科技有限公司，江苏徐州221000)

摘要：双缸起重设备是根据用户需求实现特定往复吊装作业的设备，其双缸的同步运动采用了液压同步马达控制，在实际调试过程中，因需要提高双缸运动的同步精度，对影响同步马达的同步精度因素进行了分析，并采取优化措施，最终使同步马达同步精度达到使用要求。

关键词：起重设备；同步马达；液压；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0044-03

Application of Hydraulic Synchronous Motor for Two-cylinder Lifting Equipment

LIU Xi-liang¹, FENG Zong-huan², SHI Xin¹, YANG Hai-long¹

(1. Siasun Robot & Automation Co., Ltd., Shenyang 110000, China;

2.Xuzhou Worldo Machinery Technology Co., Ltd., Xuzhou 221000, China)

Abstract: Double-cylinder hoisting equipment is the equipment for Xinsong company to realize specific reciprocating hoisting operation according to user's needs. The synchronous movement of double-cylinder is controlled by hydraulic synchronous motor. In the actual debugging process, the factors affecting synchronous accuracy of double-cylinder movement are analyzed because of the need to improve the synchronous accuracy of synchronous motor. Finally, the synchronization accuracy of synchronous motor can meet the requirements of operation by adopting optimization measures.

Key words: lifting equipment; synchronous motor; hydraulic; application

基于集总参数的电静液作动器液压系统热分析

高春伦¹，段富海^1,2,关文卿²，吕添喜²

(1.大连理工大学机械工程学院，辽宁 大连116023；

2.兰州万里航空机电有限责任公司,甘肃兰州730070)

摘要：针对飞机电静液作动器（EHA）液压系统热量堆积的问题，研究了EHA液压系统的温度变化问题。首先基于集总参数法、一维流动模型和EHA结构与工作原理，建立EHA液压系统热力学模型；其次基于Matlab/Simulink仿真计算其温度变化曲线；最后利用CATIA建立EHA三维模型，并基于ANSYS建模仿真液压系统的温升曲线以验证集总参数建模方法的可行性。结果表明：集总参数法适用于EHA液压系统的热分析，能较为快速、准确的预测其温度变化，从温度控制层面为液压系统设计和元器件选型提供参考，为EHA的设计与适航认证提供依据。

关键词：电静液作动器(EHA)；集总参数法；热分析；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0047-05

Thermal Analysis of Electro-hydrostatic Actuator Hydraulic System

Based on Lumped Parameters

GAO Chun-lun¹, DUAN Fu-hai^1,2, GUAN Wen-qing², LV Tian-xi²

(1. School of Mechanical Engineering, Dalian University of Technology, Dalian116023, China;

2. AVIC Lanzhou Wanli Aviation Electromechanical Co., Ltd., Lanzhou Gansu730070, China)

Abstract: Aiming at the problem of heat accumulation in hydraulic system of aircraft Electro-Hydrostatic Actuator (EHA), the temperature change of EHA hydraulic system is studied. Firstly, based on lumped parameter method, one-dimensional flow model and EHA structure and working principle, the thermodynamic model of EHA hydraulic system is established; secondly, the temperature change curve of EHA hydraulic system is calculated based on Matlab/Simulink; finally, the three-dimensional model of EHA is established by using CATIA, and the temperature rise curve of hydraulic system is simulated based on ANSYS to verify the feasibility of lumped parameter modeling method. The results show that the lumped parameter method is suitable for the thermal analysis of EHA hydraulic system, and can predict the temperature change quickly and accurately. It provides a reference for hydraulic system design and component selection from the temperature control level, and provides the basis for the design and airworthiness certification of EHA.

Key words: electro-hydrostatic actuator (EHA); lumped parameter method; thermal analysis; hydraulic system

基于模糊ARX-RBQ方法的液压制动系统故障诊断分析

邓丰曼

（陕西工业职业技术学院，陕西咸阳712000）

摘要：为了提高工程机械中液压制动系统的运行可靠性，选择模糊ARX模型来构建得到液压制动系统运行故障信息的提取方法，利用RBQ网络分类器来归类各个故障特征向量，从而实现对系统故障种类与状态的准确判断。故障分析方法诊断准确率达到92%，表明此方法可以满足液压制动系统故障诊断的要求。采用该算法与PID算法都可以快速响应，经分析可知建立在RBF-ARX模型基础上的非线性预测控制算法在控制强非线性多变量系统方面优于传统PID算法。

关键词：液压制动系统；故障诊断；ARX-RBQ方法；可靠性

中图分类号：TH137;TP206.3文献标志码：A文章编号：1008-0813（2020）06-0051-04

Fault Diagnosis Analysis of Hydraulic Braking System Based on Fuzzy ARX-RBQ Method

DENG Feng-man

(Shaanxi Polytechnic Institute, Xianyang712000, China)

Abstract: In order to improve the operation reliability of hydraulic braking system in construction machinery, fuzzy ARX model is selected to construct the extraction method of fault information of hydraulic braking system, and RBQ network classifier is used to classify each fault feature vector, so as to realize the accurate judgment of system fault type and state. The diagnostic accuracy of fault analysis method is 92%, which indicates that this method can meet the requirements of fault diagnosis of hydraulic brake system. Both the proposed algorithm and the PID algorithm can respond quickly. The analysis shows that the nonlinear predictive control algorithm based on the rbf-arx model is superior to the traditional PID algorithm in controlling strongly nonlinear multivariable systems.

Key words: hydraulic braking system; fault diagnosis; ARX-RBQ method; reliability

带安装槽式关节轴承压铆试验研究

刘凤江，魏伊，吴昊，李爽，吴志飞

（北京精密机电控制设备研究所，北京100076）

摘要：该文采用模压的工艺方法对电液伺服机构带安装槽式自润滑轴承的压铆技术进行研究。采用压装机控制压装力双向均匀加载的方式进行压铆，根据压装标准，制定了压装过程质量控制要求。分析了轴承装配过程的受力，计算装配时所需的铆压力范围，并采用MS14101-10轴承进行试验验证，确定了铆压力与轴承启动力矩、轴向偏移量的关系，得到了实际铆压力。最后，通过20组电液伺服机构关节轴承压铆试验验证结果，得到采用模压方法进行压装检测结果符合质量控制要求的结论，关节轴承安装固定后实现了保证轴承径向承载能力的同时，能够承受尽可能大的轴向力、轴承的启动力矩、旋转灵活性等不受影响的目标。

关键词：关节轴承；安装槽；试验；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0055-04

Research on Pressure Riveting Test of Joint Bearing with Installation Slot

LIU Feng-jiang, WEI Yi, WU Hao, LI Shuang, WU Zhi-fei

（Beijing Institute of Precision Mechatronics and Controls, Beijing100076，China）

Abstract: In this paper, the pressure riveting technology of self-lubricating bearing with mounting groove was studied by means of molding. Pressure riveting is carried out by means of bidirectional and uniform loading of pressing force controlled by pressing machine. The force in bearing assembly process is analyzed, the range of riveting pressure required during assembly is calculated, and the bearing MS14101-10 is used for test verification, the relationship between riveting pressure and bearing starting torque and axial offset is determined, and the actual riveting pressure is obtained. Finally, through the group of 20 products joint bearing pressure riveting test results, can get the molding method for pressure equipment test results meet the requirements of the quality control in the conclusion, after the joint bearing mounting implements to ensure that the bearing radial load capacity at the same time, to withstand as large axial force, bearing the start torque and rotation flexibility unaffected.

Key words: joint bearing；installation slot；test；research

渣油加氢装置离心压缩机干气密封失效

分析及改进措施

费志雄¹，廖艺²，王志峰²

（1.中国石化茂名分公司，广东 茂名525000；

2.中密控股股份有限公司，四川 成都610000）

摘要：针对国内某化工厂渣油加氢装置离心式循环氢压缩机干气密封的突然失效事件,从干气密封本体及控制系统两方面进行失效原因分析：存在推环C形密封圈质量问题、控制系统零部件设计选型问题。提出3项改进措施：品控管理优化、控制系统零部件更换、加强项目设计对接沟通。

关键词：渣油加氢装置；离心压缩机；干气密封；失效分析；改进措施

中图分类号：TB42文献标志码：A文章编号：1008-0813（2020）06-0058-04

Dry Gas Seal Failure Analysis and Improvement Measures of Centrifugal

Compressor for Residue Hydrogenation Unit

FEI Zhi-xiong¹, LIAO Yi², WANG Zhi-feng²

（1. Sinopec Maoming Petrochemical Company， Maoming525000, China；

2. Sinoseal Holding Co.，Ltd., Chengdu610000, China）

Abstract: In view of the sudden failure of dry gas seal of centrifugal circulating hydrogen compressor of residue hydrogenation unit in a chemical plant in China. Failure analysis of dry gas seal body and control system: quality problems of the C-ring of push ring, design and selection problems of control system parts. Put forward three improvement measures: quality control management optimization, control system parts replacement, strengthen project design connection and communication.

Key words: residue hydrogenation unit；centrifugal compressor；dry gas seal；failure analysis；improvement measures

一种角度可调式弯管接头密封结构的设计

付振一，胡洪林，罗乙峰，吴茂民

（中航力源液压股份有限公司，贵州贵阳550018）

摘要：该文通过对航空液压柱塞泵管接头的连接形式及常见渗漏油故障，针对性地提出了一种角度可调式管接头密封结构，该技术的应用能有效地提高航空液压柱塞泵管接头在有角度安装要求下，仍能保证液压柱塞泵具有高可靠密封性能，避免了渗漏油隐患。

关键词：密封结构；管接头；角度可调；设计

中图分类号：TH137;TB42文献标志码：A文章编号：1008-0813（2020）06-0062-03

Design of Sealing Structure for a Angle Adjustable Pipe Joint

FU Zhen-yi, HU Hong-lin, LUO Yi-feng, WU Mao-min

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

Abstract: This article through to the aviation hydraulic piston pump pipe join structure and common oil leakage fault, puts forward a kind of Angle adjustable pipe joint sealing structure, the application of this technology can effectively improve the aviation hydraulic piston pump pipe joint under the installation requirements have Angle, still can guarantee the hydraulic piston pump with high reliability sealing performance, avoid the oil leakage hidden trouble.

Key words: sealing structure; pipe joint; angle adjustable; design

汽轮机给水泵机组跳机故障诊断

赵登山，彭军，李福春，岳景辉，张义科，唐坤林

(中国核动力研究设计院第一研究所，四川成都610041)

摘要：汽轮机给水泵机组在运行过程中出现异常，通常会触发机组保护系统，造成机组跳机。引起机组跳机的原因很多，为尽快查出机组跳机原因，恢复机组正常运行，有必要对机组跳机故障进行研究。以某机组跳机事件为研究对象，对引发此次机组跳机的故障原因进行诊断分析。通过分析机组工作原理，对引起机组跳机的触发信号以及会造成相应信号的故障原因进行梳理，再结合机组实际工作情况以及试验进行分析和排除。结果表明，机组双联泵失效，在机组完成电动油泵自动切除后，双联泵无法为机组提供滑油和控制用油，引起汽轮机的润滑油压或（和）速关阀驱动装置驱动油压低于限值，触发机组跳机动作。相关研究成果能够为类似机组跳机故障提供诊断参考。

关键词：汽轮机给水泵机组；跳机；故障诊断；速关阀；双联泵

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0065-04

Tripping Fault Diagnosis of Feed-water Pump Turbine

ZHAO Deng-shan, PENG Jun, LI Fu-chun, YUE Jing-hui, ZHANG Yi-ke, TANG Kun-lin

(The First Institute of Nuclear Power Institute of China, Chengdu610041, China)

Abstract: Feed-water pump turbine in the process of operation abnormal, usually trigger unit protection system, causing unit trip. There are many causes of unit trip. In order to find out the cause of unit trip as soon as possible and restore the normal operation of unit, it is necessary to study the unit trip fault. Taking a tripping event of a unit as the object of study, the fault causes causing the tripping of the unit were diagnosed and analyzed. By analyzing the working principle of the unit, the triggering signal that causes the unit tripping and the fault cause that may cause the corresponding signal are sorted out, and then the actual working situation of the unit and the test are analyzed and eliminated. The results show that the double pump fails. After the automatic removal of the electric pump, the double pump fails to provide lubricating oil and control oil to the unit, which causes the lubricating oil pressure of the turbine or (and) the oil pressure driven by the quick-closing valve driver to be lower than the limit value, triggering the tripping action of the unit. Relevant research results can provide reference for similar unit tripping failure.

Key words:feed-water pump turbine; trip; fault diagnosis; quickly closing valve; double-pump

蓄能器皮囊开裂故障技术分析及对策

王培

（北京长征天民高科技有限公司,北京100023）

摘要：该文针对某悬架液压系统中的皮囊式蓄能器皮囊开裂故障，利用故障树分析方法对底事件进行分析排查，给出了引起蓄能器气压不足的主要因素。最后，根据蓄能器常见的故障模式，分析了压缩比、安装方式、透气特性及维护等关键要素对蓄能器工作性能的影响，提出了相应的选型和维护对策。

关键词：蓄能器；皮囊；开裂；分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0069-03

Technical Analysis and Countermeasures of Accumulator Bladder Crack

WANG Pei

(Beijing Long March Tianmin High-tech Co., Ltd., Beijing100023, China)

Abstract: In this paper, a fault tree analysis method is used to analyze and check the bottom event, and the main factors causing the insufficient air pressure of the accumulator are given. Finally, according to the common failure mode of the accumulator, the influence of the key elements such as compression ratio, installation mode, air permeability and maintenance on the working performance of the accumulator is analyzed, and the corresponding selection and maintenance countermeasures are put forward.

Key words: accumulator; bladder; crack; analysis

某型液压泵分油盖破裂分析与改进

谯维智,杨光武

（中航力源液压股份有限公司，贵州贵阳550018）

摘要：某型液压泵在试验至30 h时分油盖出现破裂的问题，该文对其分油盖进行了理化分析、有限元分析，并从分油盖结构、材料方面进行了分析与计算、优化设计，改进后的分油盖完成了1000 h试验验证。

关键词： 液压泵；分油盖；分析；改进

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0072-04

Rupture Analysis and Improvement of a Hydraulic Pump Oil Distribution Cap

QIAO Wei-zhi, YANG Guang-wu

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

Abstract: The experiment rupture of the oil cap in a hydraulic pump at 30 hours after the test. The physical and chemical analysis and finite element analysis of the oil dietribution cap are carried out in this paper. The analysis and calculation of the structure and material of the oil cap are carried out, the optimization design of the oil cap have been completed. the experiment has been carried out for 1000 hours.

Key words: hydraulic pump; the oil distribution cap; analysis; improvement

伸缩油缸芯管组件综合试验台的研制

陈登民，刘庆教，张强，杨旭伟

（徐州徐工液压件有限公司，江苏徐州221004）

摘要：针对伸缩油缸芯管组件的清洗和各种性能试验的需求，研制了一套综合性能试验台。它满足了伸缩油缸的芯管组件清洗和各种性能试验项目，具有功能通用性、技术先进性、使用可靠性、测试数据自动记录和处理、测试数据准确可靠和方便等特点，并且对同类设备的研发具有参考价值。

关键词：伸缩油缸；芯管组件；试验台；研制

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0075-04

Research and Manufacture of Integrated Test Stand for Telescopic

Cylinder Core-pipe Subassembly

CHEN Deng-min, LIU Qing-jiao, ZHANG Qiang, YANG Xu-wei

（XCMG Hydraulics Co., Ltd., Xuzho221004, China）

Abstract: Research and manufacture of this integrated test stand is developed to meet the needs of cleaning and performance test of the core-pipe subassembly of the telescopic cylinder. It meets cleaning and all the test items of the core-pipe subassembly of the telescopic cylinder in our company. There are such characteristics of the stand as function generality, technology advancement, reliability, automatically record and processing test data which is accuracy, reliable and convenient. And the research supplies reference for other equipments of the same kind.

Key words: telescopic cylinder; core-pipe subassembly; test stand; research and manufacture

一种低温胶管总成设计与应用探究

刘佳林,刘晓芳,孙爱民,左磊

Design and Application of a Low Temperature Rubber Tube Assembly

LIU Jia-lin, LIU Xiao-fang, SUN Ai-min, ZUO Lei

（徐州徐工液压件有限公司，江苏徐州221004）

摘要：该文首先通过低温胶管原材料实际生产过程中的材料分析来选取合适材料，然后针对低温胶管进行接头组件结构设计、总成扣压变形理论计算以及安装维护的使用要点，最终，完成了低温胶管总成的可靠性设计与应用。

关键词：低温；胶管总成；设计；应用

中图分类号：TH137文献标志码：B文章编号：1008-0813（2020）06-0079-03

挖掘机液压缸常见故障分析及解决方法

李永奇,刘庆教,李小明,王伟伟

（徐州徐工液压件有限公司,江苏 徐州221004）

摘要：挖掘机液压缸是挖掘机的执行元件，其轻微故障可能无法引起重视，严重的将导致影响工作效率甚至导致整机无法正常工作，影响整机寿命。该文对挖掘机液压缸常见的六大类故障进行分析，并从多个角度分析故障产生的故障模式及故障的解决方法，对快速排除挖掘机液压缸故障和提高液压缸使用寿命具有一定的指导作用。

关键词：液压缸;故障;故障模式;解决方法

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0081-03

Excavator Hydraulic Cylinder Common Failure Analysis and Solution

LI Yong-qi, LIU Qing-jiao, LI Xiao-ming, WANG Wei-wei

（XuZhou XCMG Hydraulics Co., Ltd., Xuzhou221004, China）

Abstract: Excavator hydraulic cylinder is the executive component of the excavator, its slight breakdown may not be able to arouse the attention, the serious will lead to affect the work efficiency even causes the entire machine to be unable to work normally, affects the entire machine life. In this paper, six kinds of common faults of hydraulic cylinder of excavator are analyzed, and the failure modes and solutions of the faults are analyzed from various angles, it has certain guiding function for quickly removing the fault of hydraulic cylinder of excavator and improving the service life of hydraulic cylinder.

Key words: hydraulic cylinder; failure; failure mode; solution

大型矿山机械用液压缸常见失效和改进方法

陈登民，唐闪，樊耀华，王艳丽，火霏，姚晗

(徐州徐工液压件有限公司技术中心，江苏 徐州221004)

摘要：液压缸根据使用工况主要可分为民用液压缸和矿用液压缸。矿用液压缸一般工作在露天环境中，粉尘多、速度快、压力高、冲击大, 连续高强度作业，矿山机械极其恶劣的工况容易造成液压缸早期失效。该文根据该公司液压缸在大型矿山上的多年应用经验，对矿用机械液压缸常见失效模式进行分析，并提出了相应改进方法，为后续矿用机械液压缸的应用和设计提供了一定的参考和指导作用。

关键词：矿山机械；液压缸;活塞杆拉伤；漏油；静密封失效；内泄

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0084-04

Common Failure and Improvement Method of Hydraulic Cylinder for

Large Mining Machinery

CHEN Deng-min， TANG Shan, FAN Yao-hua, WANG Yan-li, HUO Fei， YAO Han

(Xuzhou XCMG Hydraulics Co., Ltd., Xuzhou221004, China)

Abstract: The hydraulic cylinder can be divided into civil hydraulic cylinder and mining hydraulic cylinder according to the working conditions. Mining hydraulic cylinder generally works in the open environment, with many dust, fast speed, high pressure, large impact, continuous high-intensity operation, and the extremely bad working conditions of mining machinery are easy to cause the early failure of the cylinder. According to our company's cylinder's application experience in large mines for many years, this paper analyzes the common failure modes of the cylinder of mining machinery, and puts forward the corresponding improvement methods, which provides certain reference and guidance for the subsequent application and design of the hydraulic cylinder of mining machinery.

Key words: mining machinery; hydraulic cylinder; piston rod pulled; oil leakage; static seal failure; internal leakage

大型矿卡悬挂油缸工况模拟试验台设计与应用

王伟伟，李小明，李永奇，刘庆教，翟新颖

（徐州徐工液压件有限公司，江苏徐州221004）

摘要：大型矿用卡车悬挂油缸可靠性受到越来越多主机客户的关注，但现有试验台均无法模拟该类型油缸的实际运行工况。该文设计了大型矿卡用悬挂油缸工况模拟试验台，包括机械装置、液压系统和控制系统，并应用该试验台对悬挂油缸进行了工况模拟试验，达到了预期的效果，为出厂前检测大型矿用卡车用悬挂油缸的各项性能提供了有效的手段。

关键词：大型矿用卡车；悬挂油缸；工况模拟；试验台

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0087-03

The Design and Application of Suspension Cylinder Simulation Working

Condition Test Bench for Large Mining Truck

WANG We-wei, LI Xiao-ming, LI Yong-qi, LIU Qing-jiao, ZHAI Xin-ying

(Xuzhou XCMG Hydraulics Co., Ltd.,  Xuzhou221004, China)

Abstract: More and more customers pay attention to the reliability of suspension cylinders used on large mining truck, but this type cylinders working condition can't be simulated on existing test benchs. This paper designed a simulation working condition test bench for suspension cylinder used on large mining truck, including machinery, hydraulic system and conter systerm. This test bench was used, achieved the desired effect, and provided an effective means for testing the various performance of suspension cylinders used on large mining truck before delivery.

Key words: large mining truck; suspension cylinder; simulation working condition; test bench

基于ANSYS的液压缸缸筒可靠性评估及优化设计

刘朋¹, 崔德军², 袁晓明²

（1.徐州徐工液压件有限公司,江苏 徐州221004；

2.燕山大学 河北省重型机械流体动力传输与控制重点实验室，河北 秦皇岛066004）

摘要：为了在产品设计阶段评估液压缸缸筒的可靠性，通过ANSYS/APDL构建了其参数化模型，并根据应力-强度干涉理论搭建了其可靠性模型，假设缸筒的几何参数等设计变量服从正态分布，运用ANSYS的概率设计系统PDS对其进行可靠性评估及灵敏度分析，并运用ANSYS的优化设计工具OPT对缸筒进行轻量化。该项研究可用于指导液压缸缸筒及类似元件的可靠性优化设计。

关键词：液压缸缸筒；可靠性；灵敏度；优化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0090-06

Reliability Evaluation and Optimization Design of Hydraulic

Cylinder Based on ANSYS

LIU Peng¹, CUI De-jun², YUAN Xiao-ming²

（1. Xuzhou XCMG Hydraulics Co., Ltd., Xuzhou221004, China;

2. Hebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao066004, China）

Abstract: In order to evaluate the reliability of the hydraulic cylinder in the product design stage, the parametric model is built by ANSYS / APDL, and the reliability model is built according to the stress intensity interference theory, assuming that the geometric parameters and other design variables of the cylinder obey the normal distribution, the reliability evaluation and sensitivity analysis are carried out by using the probability design system PDS of ANSYS, and the ANSYS is used the optimization design tool OPT is used to lighten the cylinder. This study can be used to guide the reliability optimization design of hydraulic cylinder and similar components.

Key words: hydraulic cylinder barrel; reliability; sensitivity; optimization

自卸车多级液压缸乱序故障分析及解决方法

李小明¹，李永奇¹，杨旭伟¹，阎堃²，王伟伟¹

（1.徐州徐工液压件有限公司，江苏 徐州221004； 2.天津工程机械研究院有限公司，天津300409）

摘要：某新开发型号自卸车多级液压缸在模拟工况试验验证过程中发现：自卸车多级液压缸在伸出和回收时存在乱序的现象。乱序故障严重时会导致自卸车车厢瞬间超速下滑，产生强烈的冲击造成严重事故。该文通过试验、拆检、分析，确定故障原因，并通过对比试验，确定最终解决方法，避免此类故障的再次发生。

关键词：自卸车多级液压缸；乱序；故障分析；解决方法

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）06-0095-02

Analysis and Solution on Disorder of Multi-stage Hydraulic Cylinder for Dump Truck

LI Xiao-ming¹, LI Yong-qi¹, YANG Xu-wei¹, YAN Kun², WANG Wei-wei¹

（1.Xuzhou XCMG Hydraulics Co., Ltd., Xuzhou221004, China;

2.Tianjin Research Institute of Construction Machinery Co., Ltd., Tianjin300409, China）

Abstract: A new type of dump truck multi-stage hydraulic cylinder in the simulation of working conditions test found: the Cylinder in the expansion and retraction of the disorder phenomenon. When out of order fault is serious, it will lead to the dump truck carriage speeding down in an instant, resulting in strong impact and serious accident. This article through the test, the disassembly inspection, the analysis, determines the fault reason, and through the contrast test, determines the final solution, avoids this kind of fault to occur again.

Key words: dump truck multi-stage hydraulic cylinder; disorder; failure analysis; solution