液压技术在烟草农业机械上的应用

杨闽¹，朱艳梅² ，卢鑫²，李鹏飞²，张敏²，杨芳³

（1.北京航空航天大学云南创新研究院，云南昆明650233；

2.云南省烟草公司文山州公司，云南文山663000；

3.云南昆船烟草设备有限公司，云南昆明650236）

摘要：为保证收获高质量的烟叶，在烟草种植中后期的田间管理阶段，必须对烟株进行打顶作业后即时喷施抑芽剂。该文在烟叶机械化打顶及抑芽剂喷施农艺全面系统研究的基础上，研究了高地隙三轮自走式全液压烟草打顶-喷药机的整机结构、行走机构液压系统、喷药及打顶机构液压系统进行了深入研究，对其液压系统的核心部分进行了数学建模，较好地解决了烟草种植中的机械化打顶及抑芽剂喷施问题，为确保收获高质量的烟叶提供了优良的装备保障，因而具有十分重要的现实意义。该研究旨在不断提高烟草农业机械的现代化、智能化水平，实现与液压技术的高效融合和有机统一。

关键词： 农业机械；烟草；打顶；抑芽剂；喷药

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0001-05

Application of Hydraulic Technology for Tobacco Agricultural Machinery

YANG Min¹，ZHU Yan-mei², LU Xin²，LI Peng-fei², ZHANG Min², YANG Fang³

(1. Yunnan Innovation Institute of Beihang University, Kunming650233, China;

2. Wenshan Prefecture Company of Yunnan Provincial Tobacco Company,

Wenshan663000, China;

3. Yunnan KSEC Tobacco Equipment Co., Ltd., Kunming650236, China)

Abstract: In order to harvest high quality tobacco leaves, it is necessary to cut the crown of the tobacco canopy and to spray suckercidesto cutting fracture immediately after topping operation in the middle and late stage of tobacco planting.Based on tobacco leaf spraying agricultural mechanization in multi-topping and bud suppression agent, on the basis of comprehensive system of research, study the highland gap three rounds of self-propelled hydraulic tobacco multi-topping-spraying machine and the machine structure, walking mechanism hydraulic system, spraying and multi-topping mechanism hydraulic system were studied, the hydraulic system of the core part of mathematical modeling, It has solved the problem of mechanized topping and sprout suppressor spraying in tobacco planting, and provided.

Key words: agricultural machinery; tobacco; cut crown; suckercides; agricultural spray

空压机产品GCCA认证要点解析

王静，陆婷婷，刘云，王春燕，赵宗彬，曲本连

（合肥通用机械研究院有限公司，安徽合肥230000）

摘要：该文从认证范围、认证模式、认证流程、证后监督、认证单元划分以及认证检测等方面介绍了空压机产品的GCCA认证，并对认证要点及已获证证书情况进行了分析。

关键词：认证模式；认证流程；认证单元划分；空压机产品；GCCA认证

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）11-0006-03

Analysis of the Key Points of GCCA Certification for the Air Compressors

WANG Jing, LU Ting-ting, LIU Yun, WANG Chun-yan, ZHAO Zong-bin, QU Ben-lian

（Hefei General Machinery Research Institute, Hefei230000, China）

Abstract: This paper introduces the GCCA certification for the air compressors from the aspects of certification scope, certification mode, certification process, certification supervision, certification unit division and certification detection. The key points of the certification and the situation of the obtained certificates are also analyzed.

Key words: certification mode; certification process; certification supervision; the air compressors; the GCCA certification

液环式真空泵技术研究综述

闫格，刘伟成，李文昇，杨吉茂，王旭晖

(兰州真空设备有限责任公司华宇分公司, 甘肃兰州730050)

摘要：较为详细地介绍了液环式真空泵技术的发展演变。将液环泵分为单级单作用、单级双作用、双级以及大气液环泵四种类型，介绍了各自的特点，并分析了液环泵的发展趋势。液环泵是一种粗真空泵，既可作为真空泵使用，又可作为压缩机使用，通过简单介绍液环泵的两种使用方式的工作原理，阐述了液环泵的优点。针对液环泵的几个关键技术，对比了液环泵技术的国内外研究现状。最后指出国内需要在多个方向努力，来提高国产液环泵技术的产品价值。

关键词： 液环泵；发展演变；关键技术；研究现状

中图分类号：TH137；TH311文献标志码：A文章编号：1008-0813（2021）11-0009-04

Overview of Research on Liquid Ring Vacuum Pump

YAN Ge, LIU Wei-cheng, LI Wen-sheng, YANG Ji-mao, WANG Xu-hui

(Lanzhou Vacuum Equipment Co., Ltd., Huayu Branch, Lanzhou730050, China)

Abstract: The development and evolution of liquid ring vacuum pump technology are introduced in detail. The liquid ring pump is divided into four types: single stage single action pump, single stage double action pump, double stage pump and atmospheric liquid ring pump, their respective characteristics are introduced, and the development trend of liquid ring pump is analyzed. Liquid ring pump is a kind of crude vacuum pump, which can be used as both vacuum pump and compressor. According to several key technologies of liquid ring pump, the research status of liquid ring pump at home and abroad is compared. Finally, it is pointed out that domestic efforts should be made in many directions to improve the product value of domestic liquid ring pump technology.

Key words: liquid ring pump; development and evolution; key technologies; the research status

基于CFD的双三角形节流槽液压滑阀阀口的流量特性仿真研究

石金艳¹,李辉²,周会³

（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;

3.株洲电力机车研究所有限公司,湖南株洲412002）

摘要：以双三角形节流槽的液压滑阀为研究对象，通过运用计算流体动力学(CFD)方法对该滑阀内的流场进行解析，得到滑阀内的速度分布和流经阀口的流量大小。仿真结果表明：对于双三角形节流槽，在节流槽流出方向，阀口开度增大时，流束射流角略有减小；在节流槽流入方向，滑阀阀腔内流体的流束方向是向阀芯轴线方向偏移的；该节流槽的流量大小与阀口的开度大小近似成正线性关系，具有较小的斜率。流量特性仿真结果表明在流出和流入阀口的两方向上该滑阀的流量曲线趋于一致，在阀口流出方向上的流量略大于流入方向上的流量。

关键词：液压滑阀；CFD；双三角形槽；流量特性

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0012-03

Simulation Study on Flow Characteristics of Hydraulic Spool Valve with

Double Triangle Slot Valve Port Based on CFD

SHI Jin-yan¹, LI Hui², ZHOU Hui³

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

2. SiChuan ChuanRun Ltd., Chengdu610031, China;

3. Crrc Zhuzhou Institute Co., Ltd., Zhuzhou412002, China）

Abstract: A computational fluid dynamics method was used to analyze the flow field in a hydraulic spool valve with double triangular slot, and the velocity distribution and flow rate through the orifice were obtained. The simulation results show that for the double triangle slot, in the outlet direction of the throttling groove, the jet angle decreases slightly when the opening of the valve are increased; and in the inlet direction of the throttling groove, the direction of flow in the valve cavity is gradually offset to the spool axis, and the flow rate of the throttling groove has a positive linear relationship with the opening of the valve, with a small slope. The flow characteristic curve shows that the flow curve of the valve is basically the same in the two directions of outflow and inflow, and the flow rate in the direction of outflow is slightly larger.

Key words: hydraulic spool valve; CFD；double triangle slot; flow characteristics

基于SIMPACK研究电机横向减振器与列车动力学性能关系

徐小毛，池茂儒，金学松，郭兆团

（西南交通大学牵引动力国家重点实验室，四川成都610031)

摘要：基于SIMPACK建立了我国某高速动车组动力学模型，仿真分析了电机横向减振器对车辆动力学性能影响，对减振器设计具有帮助作用。仿真结果表明：该高速动车车辆临界速度随着电机横向减振器阻尼系数增加呈先增加后减小趋势；车辆横向平稳性指标及乘坐舒适性指标随着电机横向减振器阻尼系数增加呈先减小后增加趋势，其阻尼系数对车辆垂向平稳性影响不明显；车辆安全性指标均随着阻尼系数增加呈先减小后增加趋势。

关键词：高速动车；SIMPACK；电机横向减振器；车辆动力学性能

中图分类号：TH137;TH703.63；U292.91+4文献标志码：A文章编号：1008-0813（2021）11-0015-04

The Study on Relationship between Motor Lateral Damper and Vehicle

Dynamic Performance of Train base on SIMPACK

XU Xiao-mao，CHI Mao-ru，JIN Xue-song，GUO Zhao-tuan

(State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu610031, China)

Abstract: It is analyzed that motor lateral damper influence on vehicle dynamic performance through building the dynamic model of high speed vehicle based on SIMPACK. It may help the design and optimization of damper. Therefore, there is some of engineering application value. It could be concluded that critical speed increases firstly and then decreases with the augment of damping coefficient of motor lateral damper. Vehicle lateral stability index and ride comfort index decrease firstly and then increase with the augment of damping coefficient of motor lateral damper. And its damping coefficient has less effect on vehicle vertical stability. Vehicle safety indexes also decrease firstly and then increase with the augment of damping coefficient of motor lateral damper.

Key words: high speed vehicle; SIMPACK; motor lateral damper; vehicle dynamic performance

高精度液体静压转台的设计及研制

范长庚，李素亮

(北京海普瑞森超精密技术有限公司，北京101500)

摘要：该文对高精度液体静压转台设计及研制，用于替代高精度立式车床的原有滚动轴承转台，提高机床转台的回转精度、承载能力、刚度和稳定性，从而提高机床的加工精度，更好地满足使用要求。首先完整地阐述了高精度液体静压转台的设计过程，从总体结构设计、结构形式的确定、参数的确定、具体结构及尺寸的设计、供油液压系统的参数设计，再到对转台的仿真分析，最后到转台投产后的试验测试，详细的分析论述，确保该转台的设计合理，符合技术参数要求。该高精度液体静压转台已经研制完成并投入使用，完全符合技术参数要求，大大提高原有高精度立式车床的加工精度，提高生产效率，达到比较满意的使用效果。

关键词： 高精度；静压转台；设计；研制

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0019-06

The Design and Development of High Precision Hydrostatic Turntable

FAN Chang-geng, LI Su-liang

(Beijing High Precision Technology Co., Ltd., Beijing101500, China)

Abstract: In this paper, the high precision hydrostatic turntable is designed and studied, used to replace the original rolling bearing turntable of high precision vertical lathe, and improve the turntable accuracy, bearing capacity, stiffness and stability of the turntable of the machine tool, so as to improve the machining accuracy of the machine tool and better meet the requirements of use.. First of all, the design process of high precision hydrostatic turntable is described in this paper. From the overall structure design, the determination of structural form, the determination of parameters, the design of specific structure and size, the parameter design of oil supply hydraulic system, and then to the simulation analysis of the turntable, and finally to the test after the turntable is put into operation, detailed analysis and discussion are made to ensure that the design of the turntable is reasonable and in line with the technical parameters requirement. The high precision hydrostatic turntable has been developed and put into use, which fully meets the requirements of technical parameters, greatly improves the machining accuracy of the original high precision vertical lathe, improves the production efficiency, and achieves a satisfactory use effect.

Key words: high precision; hydrostatic turntable; design; development

基于故障模式的液压过滤器设计分析

张程，王佳，王长华，李俊勤，刘党华

(九江七所精密机电科技有限公司，江西九江332000）

摘要：根据国内外的相关统计数据，液压系统中大约有70%的故障是由于系统介质受到污染所引起的［1］。针对控制液压系统污染度的重要辅件-过滤器，收集总结过滤器使用的各种经验与教训，在刚开始设计时即着手分析危害性及其造成的影响，挖掘出过滤器潜在的缺陷，从而在过滤器的设计阶段采取改进和预防措施，达到消除过滤器可能发生故障的原因，增强了过滤器的设计有效性，降低了过滤器发生故障的风险。通过该文的阐述分析，为液压过滤器的改进提供了解决方案，对其他液压系统元件也起到借鉴作用。

关键词： 液压过滤器；故障模式；功能分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0025-04

Design and Analysis of Hydraulic Filter with Failure Mode

ZHANG Cheng，WANG Jia，WANG Chang-hua，LI Jun-qin，LIU Dang-hua

(Jiujiang 707 Institute of Precision Mechatronics SCI TECH Co., Ltd., Jiujiang332000, China)

Abstract: According to the statistics at home and abroad, about 70% of the faults of hydraulic system are caused by medium pollution［1］. In the light of the filter, which being as the important component of controlling the pollution degree of hydraulic system, we collect and summarize experience and lesson of field use. In the early stage of design, we start from the impact and hazard analysis, find out the possible potential defects of the filter, and take effective preventive measures in time in the design stage, so as to improve the design efficiency, eliminate the potential risks and eliminate the possible failure factors. Through the elaboration and analysis of this paper, it provides a solution for the improvement of the hydraulic filter, and also plays a reference role for other hydraulic system components.

Key words: hydraulic filter; failure mode; functional analysis

水田整平机驱动液压缸模糊PID同步控制仿真设计

周山旭，罗艳蕾，杜黎

（贵州大学机械工程学院，贵州贵阳550025）

摘要：水田整平机主要依靠整平机构对水田进行平整，其整平机构幅度宽，为保证整平机构刚度，因此需使用两个液压缸进行同步控制。为保证同步控制响应速度、精度、鲁棒性，该文采用主从结构控制与模糊PID自适应控制。在AMESim中搭建比例阀、非对称液压缸等模型，设置AMESim与MATLAB的连接接口，进行联合仿真。仿真结果表明，两缸同步位移误差最大为1.5 cm，当出现负载突变时，系统可在1 s内恢复平稳，且最大误差为0.75 cm，模糊PID自适应控制在两缸所受负载不同、且负载存在突变时具有良好的鲁棒性与稳定性。

关键词：整平机；同步控制；模糊PID；联合仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0029-04

Fuzzy PID Synchronous Control Simulation Design of Driving Hydraulic Cylinder for Paddy Field Leveler

ZHOU Shan-xu, LUO Yan-lei, DU Li

(School of Mechanical Engineering, Guizhou University, Guiyang550025, China)

Abstract: The paddy field leveling machine mainly relies on a leveling mechanism to level the paddy field. Its leveling mechanism has a wide range. In order to ensure the rigidity of the leveling mechanism, two hydraulic cylinders are used for synchronous control. In order to ensure the response speed, accuracy and robustness of synchronous control, this paper adopts master-slave structure control and fuzzy PID adaptive control. Build models of proportional valves and asymmetric hydraulic cylinders in AMESim, set up the connection interface between AMESim and MATLAB, and perform joint simulation. The simulation results show that the maximum synchronous displacement error of the two cylinders is 1.5 cm. When there is a sudden load change, the system recovers smoothly within 1 s, and the maximum error is 0.75 cm. Fuzzy PID adaptive control has different loads on the two cylinders and sudden load changes. When it has good robustness and stability.

Key words: leveling machine; synchronous control; fuzzy PID; co-simulation

基于并联式电液机床高精度位置控制研究

孙秀茹

（烟台黄金职业学院，山东烟台265402）

摘要：针对目前旋转式电液伺服机床加工灵活性差、效率低、以及精度问题低下等问题，该文设计了一种基于六自由度结构的并联式电液伺服机床，且针对并联式机床加工精度问题设计了基于滑模控制器（SMC）的高精度位置控制算法。首先，对电液并联式机床结构进行介绍并进行了运动学建模与分析；其次，在运动学数学建模的基础上，设计了基于滑模控制的电液机床高精度控制器，并对其稳定性进行证明；最后，我们对实验平台进行搭建，分别以给定幅值分别为10cm的阶跃信号和方波信号与传统PID算法进行对比试验，实验结果表明该文设计的机床及滑模控制算法在实际工程中具有良好的实用性和算法的有效性。

关键词：电液机床；滑模控制；数学建模；实验对比

中图分类号：TH137;TH18文献标志码：A文章编号：1008-0813（2021）11-0033-05

Research on High Precision Position Control with Parallel Electro Hydraulic Machine Tool

SUN Xiu-ru

(Yantai Golden Vocational College, Yantai265402, China)

Abstract: In order to solve the problems of poor flexibility, low efficiency and accuracy problems of rotary electro-hydraulic servo machine tools, this paper designs a kind of parallel electro-hydraulic servo machine tool based on six degrees of freedom structure, and designs a high-precision position control algorithm based on sliding mode controller (SMC). Firstly, the structure of the electro-hydraulic parallel machine tool is introduced, and the kinematics modeling and analysis are carried out. Secondly, based on the mathematical modeling of kinematics, the high-precision controller of electro-hydraulic machine tool based on sliding mode control is designed, and its stability is proved. Finally, we build the experimental platform, and transmit the step signal and square wave signal with the given amplitude of 10 cm respectively The experimental results show that the machine tool and sliding mode control algorithm designed in this paper have good practicability and effectiveness in practical engineering.

Key words: electro hydraulic machine tool; SMC; mathematical modeling; experimental comparison

基于有限元法的除氧器压力调节阀设计及研究

闫玉曦，李仲，倪华峰

(中国电建集团上海能源装备有限公司，上海201317)

摘要：除氧器压力调节阀通过接收控制信号，执行开启或关闭动作，达到控制除氧器加热补汽量，从而调节除氧器内部压力的目的。该文根据除氧器压力调节阀实际工况及功能设计各零部件结构并建立模型，采用理论计算校核结构强度，利用有限元法对除氧器压力调节阀的自振频率进行分析，并根据准静力学方法对其进行抗震分析，为进一步研究除氧器压力调节阀结构强度及其使用寿命奠定了基础。

关键词：除氧器压力调节阀；有限元法；自振频率；抗震分析

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）11-0037-05

Design and Research of Deaerator Pressure Regulating Valve Based on Finite Element Method

YAN Yu-xi, LI Zhong, NI Hua-feng

(Powerchina Spem Company Limited, Shanghai201317, China)

Abstract: The deaerator pressure regulating valve receives the control signal and performs the opening or closing action to control the heating steam make-up volume of the deaerator, so as to regulate the internal pressure of the deaerator. In this paper, according to the actual working conditions and functions of the deaerator pressure regulating valve, the structure of each part is designed and the model is established, the structural strength is checked by theoretical calculation, the natural vibration frequency of the deaerator pressure regulating valve is analyzed by finite element method, and the anti-seismic analysis is carried out according to quasi-static mechanics method, It lays a foundation for further study on the structural strength and service life of deaerator pressure regulating valve.

Key words: deaerator pressure regulating valve; finite element method; natural frequency; seismic analysis

基于高压水射流对异形薄壁件的加工方法研究

魏同学，王岗

（西安工程大学工程训练中心，陕西西安710000）

摘要：文章以避障车轮为例研究异形薄壁件的加工方法，避障车是以重力势能为唯一能量的、具有连续避障功能的三轮避障车，主动轮是避障车运动的重要组成部分，直接决定避障车能否顺利行进和稳定性、精确性，其结构属于异形薄壁件，加工和装夹较为困难。因此制定基于数控超高压水射流技术与数控加工相结合的加工工艺方案，并配合使用自行设计制作的专用夹具，解决了避障车主动轮在加工时变形、尺寸精度难以保证、装夹难的问题，提高了零件质量、加工效率以及节约了材料。

关键词：水射流；加工工艺；专用夹具；异形薄壁件

中图分类号：TH137；TH16文献标志码：A文章编号：1008-0813（2021）11-0042-04

Study on the Machining Method of Thin-wall Parts with High Pressure Water Jet

WEI Tong-xue, WANG Gang

(Xi'an University of Engineering Engineering Training Center, Xi'an710000, China)

Abstract: Taking the wheel of obstacle avoidance as an example, the processing method of special-shaped thin-walled parts is studied. The vehicle is a three-wheeled obstacle avoidance vehicle with the function of continuous obstacle avoidance with the gravitational potential energy as the only energy. Therefore, the machining technology scheme based on the combination of numerical control ultra-high pressure water jet technology and numerical control machining is formulated, and the special fixture designed and made by oneself is used to solve the problems of deformation, difficult dimensional precision and difficult clamping of obstacle avoidance vehicle owner's moving wheel, which improves the quality of parts, improves the machining efficiency and saves the materials.

Key words: water jet; processing technology; special fixture; special-shaped thin-walled

基于伺服电机的液压缸半自动装配台设计与应用

陈禄

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要：液压缸装配大部分采用手工作业，尤其在缸盖螺纹旋紧时采用扳手手工旋紧，劳动强度大，扭矩不可控影响产品质量，急需改善。该文分析了手工装配的具体操作步骤，提出基于伺服电机定扭矩旋紧缸盖的改进思路和方案，设计制作半自动装配台，以降低工人装配的劳动强度，提高装配质量和效率。

关键词： 液压缸；装配台；伺服电机；应用

中图分类号：TH137；TH138文献标志码：A文章编号：1008-0813（2021）11-0046-03

Design and Application of Hydraulic Cylinder Automatic Assembly Platform with Servo Motor

CHEN Lu

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

Abstract: Most of the hydraulic cylinder assembly is done by hand, especially when the cylinder head thread is screwed by hand with spanner. The labor intensity is large, and the torque is uncontrollable, which affects the product quality and needs to be improved urgently. This paper analyzes the specific operation steps of manual assembly, puts forward the improvement idea and scheme based on the constant torque screw cylinder head of servo motor, designs and makes the semi-automatic assembly table, so as to reduce the labor intensity of manual assembly and improve the assembly quality and efficiency.

Key words: hydraulic cylinder; assembly table; servo motor; application

温度对格莱圈密封性能影响分析

谷正钊

（太原工业学院机械工程系，山西太原030008）

摘要：格莱圈主要用于液压缸活塞的往复密封，为分析工作温度对格莱圈密封性能的影响规律，利用ANSYS对其进行数值仿真。结果表明：主密封面上的接触压力随着工作温度升高而逐渐增大；最大von-Mises应力和最大剪切应力都随着工作温度升高逐渐降低，且外行程阶段的应力值最大。因此，应着重分析格莱圈在最低工作温度条件下外行程阶段的密封性能。

关键词： 格莱圈；往复密封；温度；密封性能

中图分类号：TB42文献标志码：A文章编号：1008-0813（2021）11-0048-04

The Influence of Temperature on Glyd Ring Sealing Performance

GU Zheng-zhao

（Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan030008, China）

Abstract: Glyd ring is mainly used for reciprocating seal of hydraulic cylinder piston. To analyze the influence rule of working temperature on the sealing performance of Glyd ring, ANSYS is used to carry out numerical simulation. The results show that the contact pressure on the main sealing surface increases with the increase of working temperature. The maximum von-Mises stress and the maximum shear stress decrease gradually with the increase of operating temperature, and the stress value at the external stroke stage is the largest. Therefore, as to the sealing performance analysis of the Glyd ring, emphasis should be placed on the outer stroke stage under the lowest available temperature.

Key words: glyd ring; reciprocating seal; temperature; sealing performance

基于混合式教学的《气液压控制》课程建设研究

冯志君¹，司国雷²

Research on Course Construction of Pneumatic and Hydraulic Control with Hybrid Teaching

FENG Zhi-jun¹, SI Guo-lei²

（1.广西科技大学，广西柳州545006；

2.四川航天烽火伺服控制技术有限公司，四川成都611130）

摘要：针对《气液压控制》课程综合性强、知识点多的情况，结合应用型本科高校的特点和实际情况，提出了基于任务驱动的混合式教学模式改革。该文从课程教学视角出发，通过布置线下课堂任务、设计自主实验环节、设置课程设计题目等内容，构建立体化课程的建设方案。实施该教学方案改革后，学生的课堂参与程度提高，实践内容相应增加，有助于学生提高解决复杂问题的能力。

关键词：气液压控制；课程建设；混合式教学；线下课堂

中图分类号：TH137；TH138文献标志码：B文章编号：1008-0813（2021）11-0052-03

基于双层弹性圆柱薄板的广谱液压脉动衰减器的设计及特性分析

袁军¹，江杭¹，陆瑜¹，吴亮¹，方正艳²，江凤先³

（1.昭通学院物理与信息工程学院，云南昭通657000；

2.昭通学院教育科学学院，云南昭通657000；

3.玉溪师范学院商学院，云南玉溪653100）

摘要：为了满足液压系统中降噪宽频带的要求，设计了一种基于双层弹性圆柱薄板的广谱液压脉动衰减器。通过合理配置广谱液压脉动衰减器的结构参数，实现对多个频率段的压力脉动进行衰减。双层弹性圆柱薄板广谱液压脉动衰减器由一个扩张室、两个不同参数的弹性圆柱薄板、四个质量室和一个容积室构成。构建了圆柱薄板流固耦合数学模型，推导出圆柱薄板的振动位移公式及广谱液压脉动衰减器的插入损失表达式。用MATLAB软件和ANSYS软件对双层圆柱薄板广谱液压脉动衰减器的静态特性、动态特性和压力脉动衰减性能进行仿真。仿真结果表明，基于双层弹性圆柱薄板的广谱液压脉动衰减器在50～1000 Hz的频率范围内有良好的衰减效果，衰减效果均大于25 dB，满足衰减频率宽频带、衰减效果较好的设计要求。

关键词： 双层弹性圆柱薄板；广谱液压脉动衰减器；压力脉动；流固耦合；ANSYS分析；插入损失

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0054-11

Design and Characteristic Analysis of Broad-Spectrum Hydraulic Silencer with

Double-Layer Flexible Cylindrical Thin Shell

YUAN Jun¹, JIANG Hang¹, LU Yu¹, WU Liang¹, FANG Zheng-yan², JIANG Feng-xian³

(1. Institute of Physics and Information Engineering, Zhaotong University,

 Zhaotong657000, China;

2 .School of Education and Science, Zhaotong University, Zhaotong657000, China;

3. Business School, Yuxi Normal University, Yuxi653100, China)

Abstract: In order to meet the requirement of wideband noise reduction in the hydraulic system, a broad-spectrum hydraulic silencer with a double-layer flexible cylindrical thin shell is designed. Through reasonably configuring the structural parameters of the broad-spectrum hydraulic silencer, the pressure pulsation of multiple frequency bands can be attenuated. The double-layer flexible cylindrical thin shell broad-spectrum hydraulic silencer consists of an expansion chamber, two flexible cylindrical thin shells with different parameters, four mass chambers and a volume chamber. The fluid-solid coupling mathematical model of the cylindrical thin shell is constructed. The vibration displacement formula of the cylindrical thin shell and the insertion loss expression of the broad-spectrum hydraulic silencer are derived. MATLAB software and ANSYS software are used to simulate the static characteristics, dynamic characteristics and pressure fluctuation attenuation performance of the double-layer cylindrical thin-shell broad-spectrum hydraulic silencer. The simulation results show that the broad-spectrum hydraulic silencer with the double-layer flexible cylindrical thin shell has a good attenuation effect in the frequency range of 50 Hz to 1000 Hz, and the attenuation effect is greater than 25 dB, which meets the design requirements of wide frequency band attenuation and better attenuation effect.

Key words: double-layer flexible cylindrical thin shell; broad-spectrum hydraulic silencer; pressure pulsation; fluid-structure interaction; ANSYS analysis; insertion loss

伺服机构抽真空加注设备研制

尹建华

（北京创新同源科技有限公司，北京100073）

摘要：伺服机构抽真空加注设备是为改善某伺服机构加注油液而专门研制，该文对液压工作原理和电气原理进行了详细的阐述。该设备集中于抽真空、加注、油液循环过滤、累计加注体积、油液颗粒度检测等技术，实现了伺服机构油液循环过滤和抽真空加注的功能。

关键词：抽真空；油液颗粒度检测；累积体积加注；研制

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0065-03

Development of Servo Mechanism Vacuum Filling Equipment

YIN Jian-hua

(Beijing Transtory Technology Co., Ltd., Beijing100073, China)

Abstract: Servo mechanism vacuuming and filling equipment is specially developed to improve the oil filling of a servo mechanism. This article describes in detail the working principle of hydraulic pressure and electrical principle. The equipment concentrates on technologies such as vacuuming, filling, oil circulating filtration, cumulative filling volume, oil particle size detection, etc., and realizes the functions of circulating filtration and vacuum filling.

Key words: vacuum; oil particle detection; cumulative volume charging; development

液压制动装置杠杆臂的新型加工工艺设计及验证

张克昌

（湖南铁道职业技术学院，湖南株洲412001）

摘要：液压制动装置中的杠杆臂组装件由杠杆臂和转动轴组成。液压制动装置试验中杠杆臂与转动轴转动出现咬合现象，是由于液压制动装置杠杆臂为异形件、深孔且形位公差高，加工存在困难。通过杠杆臂新型加工工艺设计，保证了杠杆臂组装的装配精度，为同类零件加工工艺的设计提供了借鉴参考。

关键词：液压制动装置；杠杆臂；加工工艺；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0068-03

New Processing Technology and Verification of  Hydraulic Braking Device Lever Arm

ZHANG Ke-chang

(Hunan Railway Professional Technology College, Zhuzhou412001, China)

Abstract: The lever arm assembly in the hydraulic brake device is composed of a lever arm and a rotating shaft. In the test of hydraulic braking device, the lever arm and the rotating shaft appear to OCCLUSAL phenomenon. Because the lever arm of hydraulic braking device is abnormity part, deep hole and high tolerance of shape and position, it is difficult to process. The assembly precision of lever arm is ensured by the new process design, which provides a reference for the design of similar parts.

Key words: hydraulic braking device; lever arm; processing technology; design

10T液压机液压系统及电气控制设计

罗相文，陈国扬，吴素婷

（广东南方职业学院，广东江门529040）

摘要：设计一种简易的10T液压机液压系统及控制电路，要求该液压设备紧凑简易，节约设备投入成本，同时也要实现对产品的压型力及压型速度的要求。采用了电磁阀换向阀进行卸荷，简化液压系统和电气控制部分，采用传统的继电器、接触器等传统的低压电气元件，巧妙的对电路进行设计优化。综合应用了双手按钮和脚踏开关自动控制设备运行，一旦油压超压还可通过压力继电器进行安全保护。

关键词： 液压机；液压电气设计；液压安全保护；液压设计；电气原理图

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0070-03

Hydraulic System and Electrical Control Design for 10 Tons Hydraulic Presser

LUO Xiang-wen, CHEN Guo-yang, WU Su-ting

（Guangdong Nanfang Vocational College, Jiangmen529040, China）

Abstract: Design a Hydraulic system and electrical controller for a kind of simple 10-tons Hydraulic Presser. The demands for the machine are easy and more cheaper. and meet the requirepments for the press force and speed. Choose the electromagnetic valve to decompress. Design the low-voltage apparatus such as electric relays、contactors in order to design the principles well. Control the equipment running using the Double control buttons or Foot-valve. The Pressure relay can protect the machine in case of overpressure.

Key words: hydraulic presser; hydraulic electrical design; hydraulic protector; hydraulic design; electrical schematic diagram

一种高温高压气体输出及角度摆动试验系统设计

李武立，高泽普

（宁波星箭航天机械有限公司，浙江宁波315153）

摘要：高温高压气体输出及角度摆动试验系统，针对各型飞机排气管道高压波纹管球形接头研制进行试验而研发，为高压波纹管球形接头研制提供试验用气，进行耐受（压力和偏转）弯矩循环试验、强度试验、失效试验及高温热空气试验。试验系统集供配气、空气加热器、弯矩试验设备于一体，即在同一系统可完成高压、弯矩、强度、失效及高温热空气等多种试验。为各型飞机排气管道高压波纹管球形接头的研制提供科学、准确的试验依据，为球形接头的成功研制及今后的批量生产提供质量保障。

关键词： 试验系统；气瓶； 供配气；空气加热器

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）11-0073-06

Design of a High Temperature and High Pressure Gas Output and Angle Swing Test System

LI Wu-li, GAO Ze-pu

（Ningbo Xingjian Space Machinery Co., Ltd., Ningbo315153，China）

Abstract: The high temperature and high pressure gas output and angle swing test system, is developed for the development test of the high pressure bellows spherical joint of various types of aircraft exhaust pipe. It provides the test gas for the development of the high pressure bellows spherical joint, and carries out the tolerance (pressure and deflection) of bending moment cycle test, strength test, failure test and high temperature air test. The test system integrates gas supply and distribution, air heater and bending moment test equipment. That is a variety of tests such as high pressure, bending moment, strength, failure and high temperature hot air can be completed in the same system. It provides scientific and accurate test basis for the development of high pressure bellows spherical joints of aircraft exhaust pipes, and provides quality assurance for the successful development of spherical joints and mass production in the future.

Key words: test system； air bottle； gas supply and distribution； air heater

液压阀试验台核心元件常见故障及消除方法研究

李祥阳¹，花同宾²，王起新³，陶佳欣¹，张庆阳¹

（1.西安航空学院液压技术研究院，陕西西安710077；

2.西安建筑科技大学机电工程学院，陕西西安710055；

3.广州市新欧机械有限公司，广东广州510700）

摘要：该文阐述了所设计液压阀试验台各系统的组成，试验台能够实现同一试验台对多种液压阀进行测试的目的。为保证试验台中液压泵、溢流阀等核心元件出现故障时能够及时消除，研究并分析总结了液压阀试验台常见故障及其相应的消除方法，该研究可为相关液压阀试验台的故障诊断及消除提供参考，对提高诊断及消除故障的效率具有重要意义。

关键词： 液压阀试验台；常见故障；故障诊断；消除

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0078-05

Research on Common Faults and Elimination Methods of Core

Components for Hydraulic Valve Test Bed

LI Xiang-yang¹, HUA Tong-bin², WANG Qi-xin³，TAO Jia-xin¹，ZHANG Qing-yang¹

（1. Xi'an Aerotechnical College Hydraulic Technology Research Institute, Xi'an710077, China；

2. Xi'an University of Architecture and Technology, Xi'an710055, China；

3. Guangzhou Xinou Machinery Co., Ltd., Guangzhou510530, China）

Abstract: This paper describes the components of each system of the designed hydraulic valve test bench, which can realize the purpose of testing multiple hydraulic valves on the same test bench. In order to ensure the timely elimination of the failure of the hydraulic pump, relief valve and other core components in the test bed, The common failures and corresponding elimination methods of hydraulic valve test bed are studied and summarized. This study can provide reference for fault diagnosis and elimination of related hydraulic valve test bed. It is of great significance to improve the efficiency of diagnosis and fault elimination.

Key words: hydraulic valve test bed; common faults; fault diagnosis; elimination

重水堆推杆滚珠丝杆密封辅助密封圈失效分析

李平原

（中核核电运行管理有限公司，浙江海盐314300）

摘要：该文根据重水堆装卸料机推杆滚珠丝杆密封的机械结构，分析了辅助密封圈在滚珠丝杆密封的作用，针对运行历史上辅助密封圈出现的O形圈挤压破坏、物理破坏和O形圈移位的失效形式进行分析，并给出检修优化、改进方案，有效提高滚珠丝杆密封的可靠性，符合电厂长周期安全运行的要求。

关键词： 核电厂；装卸料机；推杆；滚珠丝杆密封；辅助密封圈；失效分析

中图分类号：TB42文献标志码：A文章编号：1008-0813（2021）11-0083-03

PHWR Fuelling Machine Ram Ball Screw Auxiliary Seal Failure Analysis

LI Ping-yuan

（CNNC Nuclear Power Operation Management Co., Ltd., Haiyan314300, China）

Abstract: According to fuelling machine ram assembly ball screw seal mechanical structure, analyzes the auxiliary sealing ring function in the ball screw seal. Based on operation experience, the failure modes include the O-ring extrusion damage, physical damage and O-ring displacement. This article gives the maintenance optimization and improvements to effectively improve the reliability of the ball screw seal and meet the requirements of long-term safe operation of the nuclear power plant.

Key words: nuclear power plant; fuelling machine; ram assembly; ball screw seal; auxiliary sealing; failure analysis

三级电液伺服阀常见故障分析

郑文明，刘雨，张洪亮

（首钢京唐钢铁联合有限责任公司设备部，河北唐山063200）

摘要：该文介绍了三级喷嘴挡板电液伺服阀的结构组成。通过试验台测试伺服阀静态特性的泄漏特性曲线和空载流量曲线，分析伺服阀第三级滑阀泄漏量增加、先导阀反馈杆小球磨损、先导阀滞环增大、先导阀喷嘴挡板节流孔堵塞故障。指出在伺服液压系统维护中，保持油液清洁度对延长伺服阀使用寿命和液压系统稳定性具有重要意义。

关键词： 电液伺服阀；先导阀；静态特性；故障

中图分类号：TH137.52文献标志码：A文章编号：1008-0813（2021）11-0085-03

Analysis of Common Fault of Three-stage  Electro Hydraulic Servo Valve

ZHENG Wen-ming，LIU Yu，ZHANG Hong-liang

（Shougang Jingtang United Iron ＆ Steel Co., Ltd., Equipment Department，Tangshan063200， China)

Abstract: This paper introduces the structure of three-stage nozzle Baffle electro-hydraulic servo valve. The static leakage characteristic curve and no-load flow curve of the servo valve are tested on the test-bed, analysis of Servo Valve third level slide valve leakage increase, pilot valve feedback rod small ball wear, pilot valve hysteresis increase, pilot valve nozzle baffle throttle plug failure. It is pointed out that in the maintenance of the servo hydraulic system, keeping the cleanliness of the oil is of great significance for prolonging the service life of the Servo valve and the stability of the hydraulic system.

Key words: electro hydraulic servo valve; pilot valve; static characteristic; fault

某型飞机液压系统压力随发动机转速变化故障分析

苏向荣

（中国人民解放军94198部队，新疆哈密839000）

摘要：液压系统作为飞机的主要组成部分，在外场维护过程中频发故障。该文通过对某型飞机液压故障案例进行分析，阐述了故障原因、故障检查措施、预防措施，总结得出了故障规律和内涵要点，为保证发动机稳定安全运行，确保正常的飞行训练，提供了可靠的维护经验，对外场实际工作具有实际指导意义。

关键词：液压系统；故障原因；检查措施；预防措施

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0088-04

Failure Analysis of a Certain Airplane Hydraulic System Pressure Changing with Engine Speed

SU Xiang-rong

（94198 Troops of the Chinese People's Liberation Army, Hami839000, China）

Abstract: As the main component of the aircraft, the hydraulic system frequently fails during the maintenance of the field. This article analyzes the hydraulic failure case of a certain type of aircraft, expounds the cause of the failure, failure inspection measures, and preventive measures. It summarizes the failure rules and connotation points. It provides a way to ensure the stable and safe operation of the engine and ensure normal flight training. Reliable maintenance experience has practical guiding significance for actual work in the field.

Key words: hydraulic system; cause of failure; inspection measures; preventive measures

核电厂除气冷凝器压力控制阀振动故障分析及处理

杨胜凯，刘少伟，吴奈勋，高兵兵，刘一谦，王浩

NPP Degasser Condenser Pressure Control Valve Vibration Trouble Analysis and Solution

YANG Sheng-kai, LIU Shao-wei, WU Nai-xun, GAO Bing-bing, LIU Yi-qian, WANG Hao

（中核核电运行管理有限公司，浙江嘉兴314300）

摘要：某核电厂除气冷凝器压力控制阀动作过程中曾频繁振动导致喷淋管线与除气冷凝器连接焊缝四次断裂。从消除气蚀的方向，对阀门的阀笼、阀芯、阀座等内部组件进行了升级改造，解决了该振动问题。

关键词： 压力控制阀；振动；改造；故障

中图分类号：TH137；TH138文献标志码：B文章编号：1008-0813（2021）11-0092-04

复杂模具铸件冲孔去毛刺实现

丁文平，张清叶，段超升

（费斯托气动有限公司，山东济南250104）

摘要：为了满足铸件去毛刺要求、产品成本以及生产节拍的需求，该文简要介绍了一种一次装夹去除所有交叉孔内隔皮毛刺冲模的设计原理，针对铸铝件的特点及去毛刺要求，应用此冲模，较好地实现了毛刺隔皮去除，取得了预期效果。

关键词： 复杂铸件；隔皮毛刺；冲孔；冲模

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）11-0095-02

Design of the Trimming Mould Device for Complex Mould

DING Wen-ping, ZHANG Qing-ye, DUAN Chao-sheng

(Festo Pneumatics Production Ltd., Jinan250104, China)

Abstract: In order to meet the requirements of the deburring, the product cost, and the tark time of the production, this paper briefly introduces a design principle of the trimming mould. According to the characteristics of the die-casting and the requirement of the deburring, Festo Pneumatics Production Ltd., uses this trimming mould and gets a better expected results.

Key words: complex mould; burr; punching; trimming mould1