液压工业4.0下液压技术发展方向及其数智液压

许仰曾

Trend of Hydraulic Technology in Industry 4.0 and its Intelligence Hydraulics

XU Yang-zeng

（上海液压气动密封行业协会专家委员会，上海20237）

摘要：液压未来的发展方向来自社会需求，即碳中和、无人化、多电化、数字孪生和水液压。从液压技术的主导优势和弱点,以三个维度来分析与判断液压元件发展的内在动力和方向。液压技术必定按“三能一水”（“节能、智能、制能、水液压”）的方向发展。基于这些需求，液压技术在工业4.0下首先要实现液压元件“芯片化”，以支持智能技术、多电化技术和数字孪生技术，去完美实现碳中和目标、无人化境界和全生命周期管理。该文强调液压必须与电气电子技术融合，以化解液压行业是否是”夕阳产业”的问题。数智液压就是工业4.0下的必然发展途径，根据数智液压的分类，列举了世界与中国在这方面的发展现状和存在问题。在国内外开拓数智液压不易的情况下，我国应以“低端液压元件用高端数智技术提升”占领市场的策略，来尽快提升中国数智液压，抢得先机。并且汇报了现有实践和进一步发展的建议，以期我国早日站在世界液压强国之林。

关键词： 液压工业4.0；数智液压；液压技术发展方向

中图分类号：TH137；U463.3文献标志码：B文章编号：1008-0813（2022）02-0001-07

深井条件下套管形变实验装置的研发

黄向东¹，刘宗恩¹，赵希春²，王昊³，殷修春¹，耿凯丽²

（1.中国石油大学(华东)，山东青岛266400；

2.青岛石大华通科技有限公司,山东青岛266400；

3.中国石油大学（北京）, 北京102249）

摘要：随着油气勘探开发的不断发展，井深逐步加大，压力、温度也逐步升高，伴随着蒸汽吞吐、蒸汽驱等技术的应用，由于地层流体与环境温度的巨大差异，套管、水泥环受热膨胀导致的带压问题日益突出，导致套管损毁、水泥环破坏、安全性降低，影响作业生产，直接威胁到井筒完整性。深井条件下套管形变实验装置可以在室内条件下，通过模拟实际深井条件，测量高压、高温条件下套管的形变、应力，检测水泥环的破坏情况，分析套管的形变、应力变化规律。

关键词：深井环境；套管；水泥环；形变；测试装置

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0008-03

Research and Development of Casing Deformation Experimental

Device under Deep Well Surroundings

HUANG Xiang-dong¹, LIU Zong-en¹, ZHAO Xi-chun²,

WANG Hao³, YIN Xiu-chun¹, GENG Kai-li²

(1. China University of Petroleum, Qingdao266400, China;

2. Qingdao Shida Huatong Science and Technology Co., Ltd., Qingdao266400, China;

3. China Univercity of Petroleum, Beijing102249, China)

Abstract: With the continuous development of oil and gas exploration and development, the well depth is gradually increased, and the pressure and temperature are also gradually increased. With the application of steam huff-puff, steamflood and other technologies, due to the huge difference between the formation fluid and the ambient temperature, the pressure problems caused by the thermal expansion of casing and cement-sheath are becoming more and more prominent, resulting in casing damage, cement-sheath damage and reduced safety, affecting the operation and production, It directly threatens the integrity of the wellbore.The casing deformation experimental device under deep well conditions can measure the casing deformation and stress under high pressure and high temperature conditions, detect the damage of cement sheath and analyze the variation law of casing deformation and stress under indoor conditions by simulating the actual deep well conditions.

Key words:deep well environment; casing; cement sheath; deformation; testing device

基于C/S与B/S混合模式的非接触式机械密封监控系统设计

蔡厚振

（中海石油炼化有限责任公司，北京100029）

摘要：为实现密封在线状态监控，达到用户、制造企业以及研究机构三方对密封运行动态数据实时共享的目的，结合网络化虚拟仪器（VI）技术实现了混合结构的密封网络化监控系统。现地数据采集与显示模块充分利用密封辅助系统现有的传感器和报警装置，采用VI系统实现。现场运行数据通过LabVIEW中的Data socket技术实现远程传输，现地数据采集及显示通过Remote Panels技术发布。

关键词：机械密封；混合模式；网络化；监控系统

中图分类号：TB42；TH117.2文献标志码：A文章编号：1008-0813（2022）02-0010-06

The Design of System of Non-contacting Mechanical Seals with

C/S and B/S Mixed Mode

CAI Hou-zhen

（CNOOC Oil & Petrochemicals Co., Ltd., Beijing100029, China）

Abstract: In order to implement condition monitoring of mechanical seals, sharing dynamic real-time running data of seals among users, the production enterprise and the research institution, combined with the networked virtual instrument technology, a networked monitoring system of seals based on C/S and B/S mixed mode was constructed. The data acquisition and display module on the spot was implemented through the virtual instrument system, making full use of existing sensors and alarm devices of the seal auxiliary system. The real-time operating data were transmitted through the Data socket technology of LabVIEW, and the data acquisition and display program was published through the Remote Panels technology.

Key words: mechanical seals; mixed mode; networked; monitoring system

柱塞闭死容积对柱塞泵出口流量脉动的研究

李正祥

(江苏汇智高端工程机械创新中心有限公司，江苏徐州221000)

摘要：针对某型号轴线柱塞泵，分别从封闭中空柱塞和空心柱塞的角度，建立了轴向柱塞泵AMESim和Simerics MP+配流副仿真模型，分析了两种不同闭死容积的柱塞对柱塞泵出口流量脉动的影响，得出封闭中空柱塞通过减小柱塞腔闭死容积，能有效降低柱塞泵出口流量脉动，对柱塞泵减振降噪具有重要的指导意义。

关键词：轴向柱塞泵；流量脉动；柱塞腔闭死容积；减振降噪

中图分类号：TH137.51文献标志码：A文章编号：1008-0813（2022）02-0016-05

The Effect of Piston Dead Volume on Axial Piston Pump Flow Ripple

LI Zheng-xiang

(Jiangsu Advanced Construction Machinery Innovation Center Ltd.， Xuzhou221000, China)

Abstract: Focus on a axial piston pump, from the welded piston and hollow piston, establish the valveplate pairs simulation models of AMESim and Simerics MP+, analy the influence of two kinds of piston with differernt dead volume on flow ripple of axial piston pump, it is concluded that the flow ripple of unit can be effectively reduced by welded piston which has a smaller dead volume, it is a great significance to vibration and noise reduction of axial piston pump.

Key words: axial piston pump; flow ripple; piston dead volume; vibration and noise reduction

洗扫车倾箱过程举升油缸瞬态液压力的研究

张少波

(河北省煤矿机械工程技术研究中心，河北石家庄050000)

摘要：研究了洗扫车卸载时举升油缸的瞬态液压力。首先针对垃圾箱倾翻过程中的受力情况，建立箱体的受力模型及力矩平衡方程，然后对力矩平衡方程进行研究，计算举升油缸的瞬态液压力关于倾翻角度的一阶导数，得出倾箱过程中，油缸瞬态液压力的变化趋势，结果表明：举升油缸瞬态液压力受到箱体的倾翻角度、油缸铰接点和箱体铰接点等多种因素的影响，合理布置箱体的结构，可使得瞬态液压力的极值点处于倾箱过程的初始状态。这为洗扫车箱体结构设计提供了参考，也为确定洗扫车液压系统溢流压力提供了理论基础。

关键词： 瞬态液压力；力矩；倾翻角度；极值点

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0020-03

Study on the Lifting Cylinder Transient Pressure During Tilting Tank Process for Washing Truck

ZHANG Shao-bo

(Hebei Coal Mine Mechanical Engineering Technology Research Center， Shijiazhuang050000, China)

Abstract: The transient pressure of lifting cylinder during unloading by washing truck is studied, the stress model of the box and moment balance equations are established, and then the moment balance equation, calculating lifting oil cylinder transient fluid pressure on the first derivative of tilting angle, it is concluded that in the process of tilting box, cylinder transient fluid pressure change trend, the results show that the transient fluid pressure lifting oil cylinder by the tilting angle of box body is various, cylinder hinged point and body hinged points in a variety of factors, such as enclosure structure, rational distribution of extreme value point of the transient fluid pressure may be in the initial state of the process of tilting box. This provides a reference for the structural design of the cleaning truck box and a theoretical basis for determining the overflow pressure of the cleaning truck hydraulic system.

Key words: transient pressure; torque; tilting angle; extreme point

伺服电机驱动变量泵在液压系统中的节能技术改造

石建峰

（江阴兴澄特种钢铁有限公司，江苏江阴214400）

摘要：该文介绍了伺服电机驱动变量泵的控制原理及改造方案，并在实际设备管理中进行节能改造应用，与异步电机驱动变量泵技术相比较，具有高效节能、快速响应及低噪声等优势，通过现场实测电耗、空载电流等数据对比，节能数据明显，并值得在钢铁企业进行节能技术推广。

关键词：伺服电机；伺服驱动器；恒压变量泵；节能

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0023-06

Hydraulic System Energy Saving Technical Transformation with Constant

Pressure Variable Pump Driven by Servo Motor

SHI Jian-feng

（Jiangyin Xingcheng Special Steel Works Co., Ltd., Jiangyin214400， China）

Abstract:  This paper introduces the control principle and transformation scheme of variable displacement pump driven by servo motor. Compared with the variable displacement pump technology driven by asynchronous motor, it has the advantages of high efficiency, energy saving, fast response, low noise and other advantages. Through the comparison of field measured power consumption and no-load current, the energy-saving data of variable displacement pump driven by servo motor is obvious, which is worthy of technical promotion in iron and steel enterprises.

Key words: servo motor； servo driver； constant pressure variable pump； energy saving

三辊卷板机变频调速液压系统

邹涛¹，朱军¹，张伦伟²，陈建平³，米智楠³

（1.南通蓝岛海洋工程有限公司，江苏南通226259；

2. 同济大学航空航天与力学学院，上海200092；

3.同济大学机械与能源工程学院，上海200092）

摘要：传统卷板机工作辊转速不可调节，采用变频调速工作方式，即微控制器、交流电机和变频器三者相结合的技术方案，不仅实现了上工作辊的无级调速，扩大了调速范围，还具有结构简单、工作可靠、节能、改造成本低等优点。

关键词： 卷板机；液压马达；变频调速；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0029-03

Variable Frequency Hydraulic System of Three-roller Plate Bending Machine

ZOU Tao¹， ZHU Jun¹， ZHANG Lun-wei²， CHEN Jian-ping³， MI Zhi-nan³

（1. Nantong Blue Island Offshore Co., Ltd., Nantong226259, China;

2. School of Aerospace Engineering and Applied Mechanics Tongji University,

Shanghai200092, China;

3. School of Mechanical Engineering Tongji University, Shanghai200092, China）

Abstract: To solve the problem of non-speed adjusting for the three rollers of bending machine, the new technique of variable frequency adjustment speed is proposed. By combination of microcontroller, alternating motor and converter, the technique can adjust the rotating speed of hydraulic motor continuously and expand speed-adjusting range. And the technique is possessed of simple structure, reliable work, saving energy, and low cost.

Key words: bending machine； hydraulic motor； variable-frequency speed adjustment； hydraulic system

船用液体系统流量调节研究及应用探讨

张邵平，文李明

（中船动力研究院有限公司，上海201206）

摘要：船用液体系统涉及到流量调节的以喷射系统为主，喷射系统中喷嘴的特性决定了流量与压力的关系，液体介质的特性决定了喷射良好雾化所需的系统压力。流量调节采用的压力源根据压力的大小可分为低压与高压系统。船用SCR尿素喷射系统可采用离心泵变转速控制结合流量计与比例阀的低压系统来调节控制系统的压力与所需要的流量。船用燃油喷射系统为实现雾化需要超高压系统，通过高压共轨式或增压式喷射实现所需的流量调节。通过对船用液体喷射系统相关流量调节技术的研究与应用分析，为船用液体喷射系统设计提供依据与参照。

关键词：船用液体系统；喷射系统；喷嘴特性；压力源；流量调节方法

中图分类号：TH137;TK421文献标志码：A文章编号：1008-0813（2022）02-0031-04

Flow Regulation of Marine Liquid System

ZHANG Shao-ping，WEN Li-ming

（China Shipbuilding Power Engineering Institute Co., Ltd., Shanghai201206, China）

Abstract: Flow regulation is used for Marine liquid injection system, and the relationship between flow and pressure is determined by the characteristics of the nozzle, and the system pressure for good spray atomization is determine by the characteristics of the liquid medium. The pressure source can be divided into low-pressure and high-pressure liquid system. Low-pressure system can be used for marine SCR urea injection system that centrifugal pump variable speed control combined with proportional valves and flowmeter is used to adjust the pressure and the required flow. Extra high-pressure system is used for marine fuel injection system to realize the atomization, through the high-pressure common rail type or supercharged injection to achieve the required flow. Through the research and application analysis of flow regulation of marine liquid injection system, it provides basis and reference for the design of marine liquid injection system.

Key words: marine liquid system; injection system; nozzle characteristics; pressure source; flow regulation method

射流管伺服阀喷嘴的优化研究

姜波，殷熙中，王利宁

（陕西秦峰液压有限责任公司，陕西汉中723000）

摘要：简要介绍了射流管伺服阀的组成结构和工作原理，针对射流管伺服阀零漂问题，从其功能零件喷嘴入手，从其结构尺寸、加工工艺进行优化改进，通过优化改进提升了喷嘴的质量，降低射流管伺服阀的零漂。

关键词： 射流管伺服阀；喷嘴；零漂；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0035-03

Research on Optimizing Nozzle for Jet Pipe Servo-valve

JIANG Bo, YIN Xi-zhong, WANG Li-ning

（Shanxi Qinfeng Hydraulic Co., Ltd., Hanzhong723000， China）

Abstract: Structural compositions and working principle of the jet pipe servo-valve are briefly introduced. Through optimizing and improving the size and processing technology of nozzle which is the functional part of the jet pipe servo-valve, quality of the nozzle has been improved, and null shift of the servo-valve has been solved.

Key words: jet pipe servo-valve; nozzle; null shift; research

双向变排量液压马达在飞机系统中的应用

王磊

（海装驻南京地区第四军事代表室，江苏南京210000)

摘要：随着航空技术的快速发展，传统的定量液压马达驱动系统对液压系统的功率需求越来越高，从而增加了液压系统负担，双向变排量液压马达驱动系统应运而生，因其独特的优势，其应用必然越来越广泛。该文对这种新型驱动系统的工作原理、应用场景以及技术优势进行了详细介绍。

关键词： 双向变排量液压马达；飞机系统；高升力系统；武器舱门

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0037-03

The Application of Overcenter Variable-displacement Hydraulic Motor for Aircraft System

WANG Lei

（The 4th Military Representative Office in Nanjing， Shanghai Bureau, PLA Navy Military Equipment Department， Nanjing210000, China）

Abstract: With the rapid development of aerotechnics, traditional fixed-displacement hydraulic motor drive system has been unable to meet the driving performance requirements. Overcenter variable-displacement hydraulic motor drive system rise in response to the time. In this paper,the working principle, application and technical advantages of this new type of driving system are introduced in detail.

Key words: overcenter variable-displacement hydraulic motor; aircrft system; high lift system; weapons doors

基于国产化技术的连铸机液压系统升级改造及应用浅析

张涛

（江西省新余钢铁集团公司炼钢厂，江西新余338000）

摘要：某钢厂进口宽厚板连铸机原有液压系统存在以下问题：轻压下液压控制系统容易污染导致液压阀卡阻，振动液压系统故障率高、振动缸维护困难且寿命短。现采用中国重型机械研究院提供的用于轻压下控制系统的过滤器补偿控制方案和用于振动控制液压系统的基于长寿命国产振动缸的液压系统改造方案后，完美解决了以上问题。并且改造成本低，施工简单，可靠性高，值得大力推广和应用。

关键词： 宽厚板连铸机；液压系统；过滤器补偿控制；长寿命国产振动缸

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0040-05

Revamping and Application of CCM Hydraulic System with Domestic Hydraulic Technology

ZHANG Tao

(Xinyu Iron and Steel Group Co., Ltd., Xinyu338000, China)

Abstract: The original hydraulic system of the imported slab caster in a steel plant has the following problems: the soft reduction control system is easy to be polluted, resulting in the jamming of the hydraulic valves, the oscillation hydraulic system has high failure rate, inconvenient maintenance and short life of the oscillation cylinder. The filter compensation control method for soft reduction control system and the revamping of oscillation hydraulic system based on long-life domestic oscillation cylinder provided by China Heavy Machinery Research Institute have perfectly solved the above problems. Moreover, the revamping has the advantages of low cost, simple construction and high reliability, which is worthy of vigorous promotion and application.

Key words: slab caster; hydraulic system; filter compensation control; long-life domestic oscillation cylinder

负载敏感控制系统在锚杆钻车中的应用

王威^1，2

（1.中国煤炭科工集团太原研究院有限公司，山西太原030006；

2.山西天地煤机装备有限公司，山西太原030006）

摘要：利用先进的液压故障诊断方法对锚杆钻车的液压系统问题进行分析，归纳总结处理锚杆钻车液压系统故障的方法，分析如何对现有的液压系统进行优化改进，找出其中系统的不合理之处进行优化，提高整机液压系统的可靠性和稳定性。

关键词：负载敏感；液压系统；锚杆钻车；优化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0044-03

The Application of Load Sensing Control System for Anchor Drill Truck

WANG Wei^1,2

（1. Taiyuan Research Institute Co., Ltd., China Coal Technical & Engineering Group， Taiyuan030006， China；

2. Shanxi Tiandi Coal Mining Machinery Co., Ltd., Taiyuan030006， China）

Abstract: By using the advanced hydraulic fault diagnosis method, this paper analyzes the hydraulic system problems of the rockbolt drilling vehicle, summarizes the methods to deal with the hydraulic system faults of the rockbolt drilling vehicle, analyzes how to optimize and improve the existing hydraulic system, finds out the unreasonable parts of the system to optimize, and improves the reliability and stability of the whole hydraulic system.

Key words: load sensing; hydraulic system; anchor drill car; optimization

负载敏感变量泵状态检测方案设计

高立龙，于雨，黄鹤，赵钰淞

（陆军炮兵防空兵学院士官学校防空兵系，辽宁沈阳110000）

摘要：针对某型工程车负载敏感变量泵的特点，分析了负载敏感变量泵的工作原理和常见故障，选取了合适的故障特征，制订了负载敏感变量泵的就车检测方案。实验表明，该方案能够有效记录液压泵出口油液压力与流量的变化，绘制变量泵的压力—流量曲线，对液压泵性能进行评估。

关键词： 负载敏感；液压系统；故障诊断；检测方法

中图分类号：TH137;TH165文献标志码：A文章编号：1008-0813（2022）02-0047-04

Design of State Detection Scheme for Load Sensitive Variable Pump

GAO Li-long，YU Yu，HUANG He，ZHAO Yu-song

(Army Artillery and Air Defense Forces Academy，Shenyang110000, China)

Abstract: According to the characteristics of the load-sensitive hydraulic pump of a certain type of construction truck, the working principle, common faults and causes of the load-sensitive variable pump are analyzed, and the fault feature selection is made, and the testing scheme of the load-sensitive variable pump is formulated. The experimental results show that the scheme can record the change of the oil pressure and flow at the outlet of the hydraulic pump when the load changes, draw the pressure-flow curve of the variable pump, and evaluate the performance of the hydraulic pump.

Key words: load sensing; hydraulic system; fault diagnosis; detection method

某型飞机起落架收放系统转换活门故障分析与改进设计

伍峰，谢超，印正锋

（中航通飞华南飞机工业有限公司 系统部，广东珠海519040）

摘要：该文阐述了某型飞机起落架收放系统的原理，在某次水上滑行试验后检查发现转换活门出现外部漏油现象，通过现场拆卸检查及返厂复现故障现象，对转换活门出现的故障进行分析并进行改进设计。

关键词： 飞机起落架收放系统；转换活门；故障分析；改进设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0050-03

Fault Analysis and Improved Design of Transfer Valve for an Aircraft

Landing Gear Retracting System

WU Feng，XIE Chao，YIN Zheng-feng

（Avic General Huanan Aircraft Industry，System Department， Zhuhai519040, China）

Abstract: This paper describes the principle of the landing gear retracting system of a certain type of aircraft. After a water taxi test, an external oil leakage was found in the transfer valve, analyze and improve the trouble of the transfer valve.

Key words: landing gear retracting system； transfer valve； fault analysis； improved design

阀芯限位电液数字阀控系统及位置精度控制研究

苏力¹,薛峰²

(1.西安航空学院电子工程学院，陕西西安710077;

2.西北工业大学电子信息学院，陕西西安710072)

摘要：为了提高液压机用数字阀增量控制精度，提出了一种阀芯限位电液数字阀控系统。把电机旋转角转换成阀芯位移，根据脉冲信号频率与个数确定阀芯速度与位置，达到调控油液流量与方向的效果。对电液数字阀控系统的位置精度控制构建了仿真模型，之后利用该模型进行了控制过程的动态性能测试。仿真结果表明：电液数字阀导程依次为2 mm、4 mm与6 mm时，响应时间依次为298 ms、175 ms与130 ms。提高导程之后，获得了更短的阶跃响应时间，超调量也明显增大，系统出现了抖动，降低了控制过程的稳定性。实验结果表明：从总体变化趋势上看仿真结果和实验结果达到了良好吻合状态。仿真结果和实验结果之间出现一定的延迟是由于被测试阀形成了一定程度的负开口，导致阀芯、阀套间形成0.1 mm死区，引起延迟现象。

关键词： 电液数字阀；位置精度；控制系统；仿真分析；实验验证；响应时间

中图分类号：TH137.5文献标志码：A文章编号：1008-0813（2022）02-0053-04

Spool Limit Electro-hydraulic Digital Valve Control System and Position Precision Control

SU Li¹, XUE Feng²

（1. School of Electronic Engineering Xi'an Aeronautical University, Xi'an710077, China；

2. School of Electronic Information Northwestern Polytechnical University, Xi'an710072, China）

Abstract: In order to improve the incremental control precision of digital valve for hydraulic press, an electro-hydraulic digital valve control system with spool limit position was proposed. The motor rotation angle is converted into the displacement of the spool, and the speed and position of the spool are determined according to the frequency and number of pulse signals to achieve the effect of regulating the flow and direction of the oil. A simulation model for position precision control of electro-hydraulic digital valve control system is built, and then the dynamic performance of the control process is tested by using the model. The simulation results show that when the lead of the electro-hydraulic digital valve is 2 mm, 4 mm and 6 mm respectively, the response time is 298 ms, 175 ms and 130 ms respectively. After the lead is increased, the step response time is shorter, the overshoot is obviously increased, and the system jitter occurs, which reduces the stability of the control process. The experimental results show that the simulation results are in good agreement with the experimental results from the overall trend of change. The delay between the simulation results and the experimental results is due to the fact that the tested valve forms a certain degree of negative opening, which leads to the formation of 0.1 mm dead zone between the valve core and valve sleeve, thus causing the delay phenomenon.

Key words: electro-hydraulic digital valve; position accuracy; control system; simulation analysis; experimental verification; response time 

电动挖掘机能量回收系统分析

迟宝堃

（贵州大学机械工程学院，贵州贵阳550025）

摘要：为降低挖掘机能量的消耗，该文设计了一种以超级电容为储能元件的能量回收液压系统，为了回收的电能可以在挖掘机工作中直接进行再利用，为此将以前挖掘机的内燃机驱动变为发动机驱动。通过建立超级电容数学模型，结合该系统设置超级电容主要参数，同时结合AMESim与MATLAB进行联合仿真。仿真结果表明，能量回收系统在满足传统液压系统工况下，挖掘机动臂在下放与上升一个周期内，能量的消耗减少了32.22%，该能量回收系统具有较好的节能效果。

关键词： 电动挖掘机；联合仿真；能量回收；节能

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0057-06

Analysis of Energy Recovery System for Electric Excavator

CHI Bao-kun

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

Abstract: In order to reduce the energy consumption of excavators, this paper designs an energy recovery hydraulic system with supercapacitors as energy storage components. In order to recover the electrical energy that can be directly reused during excavator work, the internal combustion engine of the previous excavator is driven It becomes engine driven. Through the establishment of a super capacitor mathematical model, combined with the system to set the main parameters of the super capacitor, at the same time combined with AMESim and matlab for joint simulation. The simulation results show that the energy recovery system meets the working conditions of the traditional hydraulic system, and the energy consumption of the excavating boom is reduced by 32.22% within a cycle of lowering and raising. The energy recovery system has a good energy-saving effect.

Key words: electric excavator; co-simulation; energy recovery; energy saving

仿生织构对抽油泵柱塞表面摩擦性能影响

郭万朋^1，3，高艺¹，胡嵩^2，3，郑 龙^2，3

（1.长春理工大学机电工程学院，吉林长春130022；

2.吉林大学工程仿生教育部重点实验室，吉林长春130022；

3.吉林大学威海仿生研究院，山东威海264207）

摘要：目前石油机采仍以抽油泵为主要装置，而柱塞表面磨损是影响抽油泵工效及寿命的关键因素。现有技术存在成本高、效果不佳等问题，鉴于此，凭借仿生方法学低耗高效优势，基于生物体表非光滑耐磨减阻特性，设计并加工仿生织构柱塞试样，探究多工况往复式润滑摩擦性能。试验结果表明，仿生织构可降低约40%的摩擦阻力，提高了耐磨性能。随后，测定实际柱塞表面仿生织构加工前后漏失量，经对比未发现明显差异，保证了泵效。

关键词：抽油泵柱塞；六边形织构；摩擦性能；仿生

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0062-06

The Effect of Bionic Texture on Pump Plunger Surface Tribological Properties

GUO Wan-peng^1,3, GAO Yi¹, HU Song^2,3, ZHENG Long^2,3

(1. College of Mechanical and Electrical Engineering， Changchun University of Science and Technology， Changchun130022, China；

2. Key Laboratory of Bionic Engineering， Ministry of Education， Jilin University， Changchun130022,China；

3. Weihai Institute for Bionics-Jilin University, Weihai264207, China）

Abstract: At present, the oil pump is still the main device for mechanical extraction. The wear of the plunger surface is a key factor affecting the work efficiency and life of the oil well, while existing related technologies have the problems of high cost and poor effect. In view of this, consider the low-cost and high-efficiency characteristics of the bionics method, based on the non-smooth wear-resistant and drag-reducing characteristics of the biological surface, the bionic texture plunger sample was designed and processed to explore the tribological properties of reciprocating lubrication under multiple working conditions. The test results show that the bionic texture can reduce the friction resistance about 40% and improve the wear resistance. Subsequently, the loss of the actual plunger surface before and after the bionic texture processing was measured and no obvious difference was found after comparison, which ensured the pump efficiency.

Key words: pump plunger; hexagonal texture; tribological properties; bionic

气体氮碳共渗工艺方法的研究及应用

贾永宁，金军

（圣邦集团有限公司，浙江温州325000）

摘要：针对马达缸体和柱塞摩擦副在应用过程中出现有磨损、拉伤的现象，对缸体的氮碳共渗热处理程序的研究和改进，确定了氮碳共渗的保温和预氧化对稳定氮碳共渗过程和提升氮碳共渗质量作用显著，为气体氮碳共渗的质量提升和应用提供改进方向。

关键词： 缸体；氮碳共渗；白亮层；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0067-03

Research and Application of Gas Nitrocarburizing Process

JIA Yong-ning， JIN Jun

(Sunbun Group Co., Ltd., Wenzhou325000, China)

Abstract: In view of the wear and strain of the motor cylinder and plunger friction pair in the application process, the nitrocarburizing heat treatment program of the cylinder is studied and improved. It is determined that the thermal insulation and pre oxidation of nitrocarburizing play a significant role in stabilizing the nitrocarburizing process and improving the nitrocarburizing quality, which provides an improvement direction for the quality improvement and application of gas nitrocarburizing.

Key words: cylinder block; nitrocarburizing; white bright layer; research

基于液压缸用活塞表面堆焊铜合金工艺

江华

(徐州徐工液压件有限公司，江苏徐州221004)

摘要：在工程机械用液压缸中，为了减少活塞在往复直线运动的过程中与液压缸内壁表面由于相对滑动而产生的摩擦，提高液压缸的使用寿命，特别是在高速、重载荷以及连续作业的工况下，可在活塞表面堆焊一定高度的铜合金，以增加活塞工作面的滑动性能，从而降低磨损。通过理论分析，介绍了常用于堆焊的铜合金的性能特点，以及通过选择合适的堆焊材料、焊接方法与焊接工艺，在45#钢活塞表面堆焊铜合金，从而得到一种既有一定的强度，同时又具有良好滑动性能的工作面的活塞，以满足特定工况下的设计使用要求。

关键词： 液压缸；活塞；铜合金；表面堆焊；工艺参数

中图分类号：TH137；TG444文献标志码：A文章编号：1008-0813（2022）02-0070-03

Copper Alloy Surfacing Process for Hydraulic Cylinder Piston

JIANG Hua

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

Abstract: In the hydraulic cylinder for construction machinery, in order to reduce the friction between the piston and the inner wall surface of the hydraulic cylinder due to the relative sliding during the reciprocating linear movement, and to improve the service life of the hydraulic cylinder, especially in high-speed, heavy-load and continuous work Under circumstances, a certain height of copper alloy can be surfacing on the surface of the piston to increase the sliding performance of the piston working surface, thereby reducing wear. Through theoretical analysis, the performance characteristics of copper alloys commonly used for surfacing welding are introduced, and by selecting suitable surfacing materials, welding methods and welding processes, surfacing copper alloys on the surface of 45 steel pistons, so as to obtain an existing certain The piston with the working surface of strength and good sliding performance can meet the design and use requirements under specific working conditions.

Key words: hydraulic cylinder; piston; copper alloy; surfacing; process parameters

航空燃油齿轮泵偏心浮动侧板预紧装置改进研究

孟嘉嘉，刘伟，王轩，张红涛

（河南航天工业有限责任公司，河南郑州451191）

摘要： 该文为了解决航空燃油齿轮泵低速运转时，偏心预紧装置造成的浮动侧板磨损问题。通过分析航空燃油齿轮泵的实际工况与偏心浮动侧板的结构形式，提出了一种新的预紧装置进行改进。

关键词： 航空燃油；齿轮泵；偏心浮动侧板；改进研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0073-03

The Optimization Design of the Acentric Floating Plate's Pre-loading

Device for Aircraft Fuel Gear Pump

MENG Jia-jia，LIU Wei，WANG Xuan，ZHANG Hong-tao

（Henan Aerospace Industry Co., Ltd., Zhengzhou451191, China）

Abstract: This study introduces a new pre-loading device, which is applied on the gear pump whose working medium is aircraft fuel. This device was designed by analyzing the floating plate's structure and the gear pump's operating condition. And it solved the floating plate's abrasion problem when the pump was working on the low speed.

Key words: aircraft fuel; gear pump； acentric floating plate； optimization design

机轮刹车系统关键液压元件检测试验台设计

王涛¹， 李屹¹， 李家春¹， 袁波²， 王洪凯²

(1.贵州大学机械工程学院， 贵州贵阳550025；

2.中航力源液压股份有限公司，贵州贵阳550018)

摘要：为满足机轮刹车关键液压元件维修或出厂前各项性能检测需求，设计了一种自动化程度高的刹车元件性能检测试验台，介绍了其工作原理、系统组成及主要技术参数。试验台采用PID闭环控制大幅度提高系统的稳定性，具有安全性高、可靠性强、操作简便等诸多优点，并能满足多项测试的目的。经实际测试及使用，试验台系统运行可靠并已达到机轮刹车元件性能测试要求，具有良好推广价值。

关键词： 机轮刹车元件；试验台；设计；多项测试

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0075-05

Design of Test Bench for Key Hydraulic Components of Wheel Brake System

WANG Tao¹， LI Yi¹， LI Jia-chun¹， YUAN Bo²， WANG Hong-kai²

(1. School of Mechanical Engineering Guizhou University， Guiyang550025， China；

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

Abstract: In order to meet the maintenance of key hydraulic components of wheel brakes or various performance testing requirements before leaving the factory, a highly automated brake component performance testing test bed was designed, and its working principle, system composition and main technical parameters were introduced. The test bench adopts PID closed-loop control to greatly improve the stability of the system. It has many advantages such as high safety, strong reliability, and easy operation, and can meet multiple test purposes. After actual testing and use, the test bench system is reliable and has reached the performance test requirements of wheel brake components, which has good promotion value.

Key words: wheel brake components; test bench; design; multiple tests

一种改善轴向柱塞泵容积效率的配流盘设计

王晋芝¹，刘雨²

（1.力源液压(苏州)有限公司,江苏苏州215144;

2.中航力源液压股份有限公司，贵州贵阳550018）

摘要：针对某型号轴向柱塞泵在重载小流量工况下容积效率低的问题，运用AMESim软件搭建轴向柱塞泵配流副原理模型，对配流盘的结构进行优化设计并对优化前后的容积效率进行对比分析，最后，通过试验验证了相关设计参数的正确性，结果表明：优化后的配流盘结构能明显地改善重载小流量工况下轴向柱塞泵的容积效率。

关键词： 轴向柱塞泵；AMESim；容积效率；配流盘；卸荷槽

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0079-05

Design of Valve Plate for Improving the Axial-Piston Pump Volumetric Efficiency

WANG Jin-zhi¹， LIU Yu²

（1.Liyuan Hydraulic (Suzhou) Co., Ltd., Suzhou215144, China;

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

Abstract: Focus on the low volumetric efficiency of the axial piston pump in the working condition of overloading and small flow rate, build the cylinder block-valve plate interface principle model of axial-piston pump base on AMESim software, optimized valve plate design and compared the volumetric efficiency before optimization and after, finally, through the experiment verify the correctness of the related design. The results show that the optimized structure can improve the volumetric efficiency of the axial piston pump in the working condition of overloading and small flow rate.

Key words: axial-piston pump; AMESim; volumetric efficiency; valve plate; relief groove

某型电动泵压力异常故障分析与改进

吴绍香，刘雨，石显运

（中航力源液压股份有限公司，贵州贵阳550018）

摘要： 针对某型直升机用电动泵压力异常故障问题，运用AMESim软件对系统进行了仿真分析，得出了电机起动瞬时电流过高是导致电动泵压力异常的主要原因，并提出相应改进措施，最后，通过试验验证了相关改进措施的有效性。

关键词： 电动泵；压力异常；AMESim；分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0084-04

Analysis and Improvement for Abnormal Pressure of Electric Pump

WU Shao-xiang， LIU Yu， SHI Xian-yun

(AVIC Liyuan Hydraulic Inc., Guiyang550018, China)

Abstract: Focus on the problem of abnormal pressure faults for electric pump, established simulation model of hydraulic system based on AMESim software, and concluded that the main reason for abnormal pressure is that the large shock current in staring of the motor, and put forward the corresponding improvement measures. Finally, through the experiment verify the correctness of the relevant improvement measures.

Key words: electric pump; abnormal pressure; AMESim; analysis

闭式液压系统变量泵HS控制特性研究

刘雨，杨斌，杨华，石显运

（中航力源液压股份有限公司，贵州贵阳550018）

摘要：为了研究某型闭式液压系统变量泵双向变量伺服控制（HS）的控制特性，基于AMESim软件搭建了该闭式液压系统HS控制仿真模型，对HS控制的工作原理及输出特性进行分析，为双向变量伺服控制系统的设计提供了理论依据。

关键词： HS；控制特性；AMESim；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0087-05

Study on HS Control Characteristics of Variable Pump for

Closed Hydraulic System

LIU Yu，YANG Bin，YANG Hua，SHI Xian-yun

（AVIC Liyuan Hydraulic Inc., Guiyang550018, China）

Abstract: In order to study HS control characteristics of variable pump for a certain closed hydraulic system, the HS control simulation model was built based on AMESim software. Through analysis the working principle and the output characteristic of HS control, provide the theory basis for design of bilateral variable servo control.

Key words: HS; control characteristics; AMESim; hydraulic system

某型伺服泵无流量故障分析与改进

刘志国，刘雨，杨斌，吴茂民

（中航力源液压股份有限公司，贵州贵阳550018）

摘要：针对某型双向变量伺服泵无流量输出故障问题，运用多体动力学软件对伺服泵心脏部件进行仿真分析，得出了球铰-卡盘摩擦副比压比功过高是伺服泵无流量输出的主要原因，最后，对相关结构进行优化设计并试验验证了改进措施的有效性。

关键词：伺服泵；无流量输出；多体动力学；故障

中图分类号：TH137文献标志码：A文章编号：1008-0813（2022）02-0092-05

Analysis and Improvement for No-Flow Fault of Servo Pump

LIU Zhi-guo, LIU Yu, YANG Bin, WU Mao-min

(AVIC Liyuan Hydraulic Inc., Guiyang550018, China)

Abstract: Focus on the no-flow fault for servo pump, established simulation model of servo pump based on multibody dynamics software, concluded that the main reason for no-flow was that the specific pressure and power which friction couples of spherical hinge-chuck is too high. Finally, put forward the corresponding improvement measures, and through the experiment verify the correctness.

Key words: servo pump; no-output flow; multibody dynamics; fault