轴向柱塞泵配流盘的球面半径最佳取值范围分析

杨国来^1，2，张中成¹

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050;

2.浙江大学流体动力与机电系统重点实验室，浙江杭州310027）

摘要：目前，国内外研究人员对球面配流的轴向柱塞泵的研究还不是很透彻。而球面配流与平面配流的轴向柱塞泵相比较，在缸体的对中性以及抗倾覆力矩性能上好很多。该文针对球面配流盘的轴向柱塞泵，以A4V250型柱塞泵作为研究对象，初步选取球面配流盘的半径为170 mm，利用solidworks建立其三维模型。然后运用有限元仿真软件workbench对轴向柱塞泵的球配流盘进行仿真分析，最终得到配流盘球面半径的最佳取值范围。

关键词： 轴向柱塞泵；配流盘；球面半径；workbench

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0001-04

Analysis on Spherical Radius Optimum Value Range of Axial Piston Pump Port Plate

YANG Guo-lai^1,2，ZHANG Zhong-cheng¹

（1. College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou730050, China;

2. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou310027, China）

Abstract: At present, the research on the axial piston pump with spherical flow distribution is not very thorough. Compared with the axial piston pump with the plane flow distribution, the spherical piston pump has much better performance of centering and anti overturning torque. In this paper, for the axial piston pump with spherical port plate, a4v250 plunger pump is taken as the research object. The radius of spherical port plate is 170 mm, and its three-dimensional model is established by SolidWorks. Then, the finite element simulation software workbench is used to simulate and analyze the ball port plate of the axial piston pump, and the optimal value range of the spherical radius of the valve plate is obtained.

Key words: axial piston pump; valve plate; spherical radius; workbench

船用高压细水雾灭火泵柱塞副间隙的优化设计

王海清¹，贾国涛²，聂松林³，尹方龙³

（1.海装广州局驻昆明地区第二军事代表室，云南昆明650032；

2.中船重工705所昆明分部,云南昆明650032；

3.北京工业大学先进制造技术北京市重点实验室，北京100124）

摘要：该文对船用高压细水雾灭火泵柱塞副开展了受力分析，在综合考虑摩擦力和摩擦升温的前提下建立了柱塞副的泄漏量和热平衡分析模型，开展了不同柱塞副间隙和工况下柱塞副的热平衡分析并获得了相应的变化规律，并对柱塞副的初始配合间隙进行了优化，提出了避免柱塞副卡死的技术措施，研究结果可以为船用高压细水雾灭火泵柱塞副的结构优化，提高柱塞泵综合性能提供理论依据。

关键词：高压细水雾灭火；水液压柱塞泵；柱塞副；热平衡；配合间隙

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0004-06

Optimization Design of Piston Pair Clearance for Marine High-Pressure Water Mist Fire Pump

WANG Hai-qing¹， JIA Guo-tao²， NIE Song-lin³， YIN Fang-long³

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

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

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

Abstract: In this paper, the force analysis of the piston pair in marine high-pressure water mist fire pump is carried out. Under the premise of considering the friction and friction temperature rise, the leakage and heat balance analysis model of the piston pair is established. The heat balance analysis of the piston pair under different clearance and working conditions is conducted, and the corresponding change law is obtained. The initial clearance of the piston pair is optimized. The research results can provide a theoretical basis for the structural optimization of the piston pair of marine high-pressure water mist fire pump.

Key words: high pressure water mist fire; water hydraulic piston pump; piston pair; heat balance; fit clearance

平衡孔位置对离心泵轴向力影响的数值模拟研究

汪东山，杜永峰，吕雪

（兰州理工大学能源与动力工程学院，甘肃兰州730050）

摘要：为了减小离心泵叶轮的轴向力，在全计算域的基础上，基于RNG k-ε湍流模型和定常计算，系统地研究了平衡孔的径向位置和周向位置对轴向力的影响。结果表明：在保持平衡孔直径不变的情况下，平衡孔径向和周向位置的变化对泵性能的影响非常小；当平衡孔到离心泵转轴的径向距离减小时，轴向力减小；平衡孔开孔位置越靠近叶片背面，平衡孔泄漏量越大，轴向力越小；减小平衡孔到转轴的径向距离并使平衡孔开孔位置尽量靠近叶片背面，能够最大幅度地减小离心泵的轴向力,计算得到的轴向力最小值比最大值减小14.99%。

关键词：离心泵；平衡孔；开孔位置；轴向力；数值模拟

中图分类号：TH137；TH311文献标志码：A文章编号：1008-0813（2021）10-0009-06

Numerical Simulation Research on the Influence of Balance Hole Position on

the Axial Force of Centrifugal Pump

WANG Dong-shan, DU Yong-feng, LV Xue

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

Abstract: In order to reduce the axial force of a centrifugal pump impeller, the influence of the radial and circumferential position of the balance hole on the axial force was studied systematically based on the RNG k-ε turbulence model and steady state calculation. The results show that the change of the radial and circumferential position of the balance hole has little effect on the pump performance when the diameter of balance hole is kept unchanged. When the radial distance from the balance hole to the shaft of the centrifugal pump decreases, the axial force decreases.The closer the opening position of the balance hole is to the back of the blade, the greater the leakage of the balance hole is and the smaller the axial force is. By reducing the radial distance between the balance hole and the shaft and making the opening position of the balance hole as close to the back of the blade as possible, the axial force of the centrifugal pump can be reduced to the maximum extent. The calculated minimum axial force is 14.99% smaller than the maximum.

Key words: centrifugal pump; balance hole; opening position; axial force; numerical simulation

一种可自动换向的集成气缸的设计

黄立新，邓晓山，李忠钰

(中航飞机起落架有限责任公司，湖南长沙410200)

摘要：针对传统气动执行元件和气动方向控制元件分别为单独的结构功能件的缺点，采用集成设计技术将换向阀、梭阀功能集成为独立的集成换向阀并固定组装在气缸上，实现一种可自动换向的集成气缸，解决梭阀、换向阀和气缸各元件功能较单一的问题。

关键词： 气缸；梭阀；换向阀；集成设计

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）10-0015-02

A Design Relates to Automatic Reversing Integrated Cylinder

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

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

Abstract: As the existing pneumatic cylinder and direction control valve are separate structural function parts, the function of the reversing valve and shuttle valve are integrated into an independent integrated reversing valve and assemble it on the cylinder by adopting the idea of integrated design to realize an integrated cylinder that can automatically reserve, which solves the single function of shuttle valve, reversing valve and pneumatic cylinder.

Key words: pneumatic cylinder; shuttle valve; reversing valve; integrated design

关于工业用压力容器的自动控制系统的设计

周希明，赵建武

（湖南省机械科学研究院有限公司，湖南长沙410116）

摘要：在工业生产中，经常使用到一种需快速开关盖的压力容器，设计制造一种可以自动控制的且快速开关盖的压力容器，运用传感元件能自动控制罐内气压及液位高度的技术，对现在的工业生产有相当重要的实用和现实意义。

关键词：压力容器制造；自动开关盖；自动控制；罐内气压及液位

中图分类号：TH137；TH138文献标志码：A文章编号：1008-0813（2021）10-0017-04

Design of Automatic Control System for Industrial Pressure Vessels

ZHOU Xi-ming， ZHAO Jian-wu

(Hunan Mechanical Science Research Institute Co., Ltd., Changsha410116， China)

Abstract: In industrial production, a pressure vessel requiring a fast switch cover is often used, a pressure container that can be automatically controlled and quickly switch cover is designed and manufactured, and the sensing elements can automatically control the air pressure and level height in the tank, which is of great practical and practical significance to the current industrial production.

Key words: pressure vessel manufacturing; automatic switch cover; automatic control； air pressure and liquid level in the tank

放气活门透气孔对动静态性能影响研究

史彦东¹，侯占峰¹，涂益韵¹，訾惠宇¹，田纬²，翟富刚^2,3

（1.中国航发长春控制科技有限公司，吉林长春130102；

2.燕山大学机械工程学院，河北秦皇岛066004；

3.燕山大学河北省轻质结构装备设计与制备工艺创新中心，河北秦皇岛066004）

摘要：针对放气活门透气孔对其动静态性能影响不明晰的问题。首先，对放气活门阀芯进行动力学分析，然后基于CFD流场仿真技术得到阀芯所受流场作用力，最后建立放气活门AMESim仿真模型，分析透气孔面积对放气活门动静态性能的影响规律。结果表明，透气孔大小对于放气活门的动静态性能具有重要影响，随透气孔面积增大，放气活门的最大超调量和调整时间减小，有利于提高其动态性能；同时，在相同活门开度，气压伺服马达控制电流随透气孔面积增大而减小。

关键词： 放气活门；透气孔；AMESim仿真；动静态性能

中图分类号：TH138;V228.7+3文献标志码：A文章编号：1008-0813（2021）10-0020-06

Study on the Influence of the Vent Hole Size on the Dynamic and Static

Characteristics of the Air Bleed Valve

SHI Yan-dong¹, HOU Zhan-feng¹, TU Yi-yun¹, ZI Hui-yu¹，TIAN Wei², ZHAI Fu-gang^2,3

（1. AVIC Changchun Control Technology，Changchun130102, China；

2. School of Mechanical Engineering，Yanshan University，Qinhuangdao066004, China；

3. Hebei Innovation Center for Equipment Lightweight Design and Manufacturing，Yanshan University，Qinhuangdao066004, China）

Abstract: Aiming at the problem that the vent hole has an unclear effect on the dynamic and static characteristics of the air bleed valve. First, dynamic analysis of the valve core of the air bleed valve, and then obtain the flow field force of the valve core based on the CFD flow field simulation technology, and finally establish the air bleed valve AMESim simulation model to analyze the influence of the area of the vent hole on the dynamic and static performance of the air bleed valve. The results show that the size of the vent hole has an important impact on the dynamic and static performance of the air bleed valve. As the area of the vent hole increases, the maximum peak overshoot and settling time of the air bleed valve decrease, which is beneficial to improve its dynamic characteristics; Moreover, at the same valve opening, the control current of the pneumatic servo motor decreases with the increase of the vent hole area.

Key words: air bleed valve; vent hole; AMESim simulation; dynamic and static characteristics

OTZ58/110调速型偶合器开发与应用

陈昌尾

（中国船舶重工集团公司第七一一研究所,上海201108）

摘要：该文主要阐述了YOTZ58/110调速型偶合器的设计开发与市场应用，着重介绍选型设计、结构特点及其主要技术参数，并分析工作原理及性能特点，最后介绍应用于冶金、电力、石化、矿山等行业，尤其适用于离心压缩机组配套使用。

关键词：液力偶合器；离心压缩机组；调速型；超高速

中图分类号：TH137;U463.22 文献标志码：A文章编号：1008-0813（2021）10-0026-03

Development and Application of YOTZ58/110 Variable Speed Hydrodynamic Clutch

CHEN Chang-wei

（Shanghai Marine Equipment Research Institute, Shanghai201108, China）

Abstract: This paper describes the design, development and market application of YOTZ58/110 Variable Speed Hydrodynamic Clutch. It mainly introduces the type selection design, structural characteristics and main technical parameters, and analyzes the working principle and performance characteristics. Finally, it introduces the application in metallurgy, electric power, petrochemical, mining and other industries, especially for the matching use of centrifugal compressor units.

Key words: hydrodynamic clutch; centrifugal compressor unit; variable speed; super high speed

空气流速对气液分离滤芯饱和过滤效率影响研究

吴瑜，王佳，王其，狄俊平

（九江七所精密机电科技有限公司，江西九江332000）

摘要：气液分离滤芯是空气压缩机中重要元件之一，滤芯的饱和过滤效率直接影响到压缩空气中的油雾含量。实验研究表面流速对气液分离滤芯饱和过滤效率影响具有一定的影响：随着流速升高，饱和过滤效率逐渐升高；到流速上升值一定值时，饱和过滤效率达到最高；随后饱和过滤效率随流速而下降。最后通过韦伯数We和奥内佐格数Oh对这一现象进行了分析，该分析对滤芯饱和过滤效率研究具有一定的指导意义。

关键词：气液分离；流速；过滤效率；研究

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）10-0029-04

Study on the Influence of Air Velocity on Saturation Filtration

Efficiency of Gas-liquid Separation

WU Yu, WANG Jia, WANG Qi, DI Jun-ping

（Jiujiang 707 Institute of Precision Mechatronics SCI & TECH Co., Ltd., Jiujiang 332000, China）

Abstract:Gas-liquid separation filter element is one of the important components in air compressor. The saturation filtration efficiency of filter element directly affects the oil mist content in compressed air. The influence of the surface velocity on the saturation filtration efficiency of the gas-liquid separation core was studied experimentally: as the velocity increased, the saturation filtration efficiency gradually increased. Saturation filtration efficiency reaches the highest when the flow rate increases to a certain value. Then the saturation filtration efficiency decreases with the flow rate. Finally, Weber number “We” and Ohnesorge number “Oh” were used to analyze this phenomenon, which has certain guiding significance for the research of saturation filtration efficiency of filter element.

Key words: gas-liquid separation; velocity; filtration efficiency; study

自控飞机大臂气缸推力计算方法研究

赵九峰

（河南省特种设备安全检测研究院，河南郑州450000）

摘要：以24座自控飞机大臂为研究对象，在大臂的力学特性进行详细分析基础上，根据力矩平衡原理构建大臂气缸推力的数学模型，给出了自控飞机大臂气缸推力的计算公式。应用有限元软件ANSYS Workbench对自控飞机大臂进行刚体动力学仿真分析，获取大臂在起升过程中的气缸推力时间历程曲线，并与理论计算结果进行对比，最大误差小于3%，表明建模、仿真的正确性及机构设计的合理性，并依据行业规范对气缸进行校核计算。虚拟样机技术在游乐设施机构设计和评估中，能够减小常规计算带来的设计误差，节约人力和试验资源，对于提高游乐设施技术人员的设计能力具有十分重要的现实意义。

关键词： 自控飞机；大臂；力矩平衡；刚体动力学；推力曲线；虚拟样机

中图分类号：TH138;TH311.4文献标志码：A文章编号：1008-0813（2021）10-0032-05

Research on Calculation Method of Cylinder Thrust for Astro Fighter Boom

ZHAO Jiu-feng

(Special Equipment Safety Inspection and Research Institute of Henan Province, Zhengzhou450000, China)

Abstract: Based on the detailed analysis of the mechanical properties of the big arm, the mathematical model of the big arm cylinder thrust is built according to the principle of torque balance, and the calculation formula of the big arm cylinder thrust of Astro fighter is given. Applying ANSYS Workbench, the thrust time history curve of the big arm in the lifting process of the cylinder is obtained and compared with the theoretical calculation results. The error is less than 3%, indicating the correctness of the modeling and simulation and the rationality of the mechanism design. In addition, the cylinder is checked and calculated according to the industry specifications. In the design and evaluation of amusement facilities, virtual prototype technology can reduce the design error caused by conventional calculation, save manpower and experimental resources, and has very important practical significance for improving the design ability of amusement facilities.

Key words: astro fighter; big arm; moment balance; rigid body dynamics; thrust curve; virtual prototype

面向再制造的液压泵拆解装置研究与虚拟拆解实验

颜克伦¹，王伏林²，王灿¹，唐萌¹，陶东波¹

（1.湖南机电职业技术学院，湖南长沙410151；

2.湖南大学机械与运载工程学院，湖南长沙410082）

摘要：从再制造工程角度，充分考虑工程机械液压泵再制造的拆解装置设计要求，构建二维/三维拆解模型，对拆解装置功能规划及典型拆解装置详细设计，建立虚拟样机，并对拆解过程进行虚拟实验，规划液压泵拆解装置操作规程，与传统人工拆解比较，验证其可行性、有效性。

关键词：工程机械液压泵；再制造；拆解装置；虚拟拆解

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0037-10

Research and Virtual Disassembly Experiment of Hydraulic Pump

Disassembly Device for Remanufacturing

YAN Ke-lun¹，WANG Fu-lin²，WANG Can¹，TANG Meng¹，TAO Dong-bo¹

（1. Hunan Mechanical and Electrical Polytechnic, Changsha410151, China;

2. College of Mechanical and Vehicle Engineering, Hunan University, Changsha410082, China）

Abstract: From the perspective of remanufacturing engineering, fully consider the design requirements of disassembly device for remanufacturing of hydraulic pump of construction machinery, build 2D/3D disassembly model, build a two-dimensional/three-dimensional disassembly model for the functional planning of disassembly device and the detailed design of typical disassembly device, build virtual prototype, and the virtual experiment of disassembly process is carried out, planning operating procedures for hydraulic pump disassembly device, comparison with traditional manual disassembly, verify its feasibility and effectiveness.

Key words: construction machinery hydraulic pump; remanufacturing; disassembly device; virtual disassembly

新型检修密封在某水电站的应用

赵业文，沈迪城，李光栋

（中国长江电力股份有限公司，湖北宜昌443000）

摘要：该文通过对某电站水轮机原检修密封的简要介绍，分析了其功能异常的主要原因。通过技术改造，该电站水轮机安装了一种新型检修密封。多年运行后，新型检修密封仍具有良好的性能，对类似水电站的设计安装、技术改造，具有一定的参考价值。

关键词：水轮机；主轴密封；检修密封；应用

中图分类号：TB42文献标志码：A文章编号：1008-0813（2021）10-0046-03

Application of New Overhaul Seal for a Hydropower Station

ZHAO Ye-wen, SHEN Di-cheng, LI Guang-dong

(China Yangtze Power Co., Ltd., Yichang443000, China)

Abstract: This paper introduces the original overhaul seal of a hydropower station, and analyzes the main reasons for its abnormal function. Through technical transformation, a new type of overhaul seal is installed. After years of operation, the new overhaul seal still has good performance.

Key words: hydraulic turbine; shaft seal; overhaul seal; application

静密封件产品GC认证要点解析

王静，程云朗，孙令群，张小梅，辛安见

（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静密封件产品GC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；静密封件产品；GC认证

中图分类号：TB42文献标志码：A文章编号：1008-0813（2021）10-0049-03

Key Points Analysis of GC Certification for the Static Seal Products

WANG Jing, CHENG Yun-lang, SUN Ling-qun, ZHANG Xiao-mei, XIN An-jian

（Hefei General Machinery Research Institute, Hefei230000, China）

Abstract: This paper introduces the GC certification for the static seal products 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 static seal products; the GC certification

加强筋板在压缩机减振降噪中的应用研究>

低压阀门开启压力异常的分析与改进

张聪超¹，孟鑫¹，张振炎²，路超²

（1.郑州职业技术学院，河南郑州450199；

2.河南航天液压气动技术有限公司，河南郑州451191）

摘要：低压阀门的启闭和密封性能一直是研究的热点问题之一。文章对某试验系统用低压单向阀在试验过程中出现的开启压力异常问题进行了故障清查与分析，通过在橡胶密封平面喷涂不粘涂层PTFE涂层进行试验验证。试验结果表明，该涂层克服了金属—橡胶密封面的粘连，有效解决了低压单向阀开启压力异常的问题。

关键词：低压阀;开启压力；橡胶；PTFE涂层

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）10-0058-03

Analysis and Improvement on Abnormal Opening Pressure of the Low Pressure Valve

ZHANG Cong-chao¹, MENG Xin¹, ZHANG Zhen-yan², LU Chao²

(1. Zhengzhou Technical College, Zhengzhou450199, China;

2. Henan Aerospace Hydraulic and Pneumatic Technology Co., Ltd., Zhengzhou451191, China)

Abstract: The opening and closing as well as the sealing performance of the low pressure valve has always been one of the hotpot issues. In this paper, the problem of abnormal opening pressure of low-pressure check valve used in a test system is checked and analyzed, which is verified by spraying non stick coating PTFE on the rubber sealing surface. The test results show that the coating overcomes the adhesion of metal-rubber sealing surface and the problem of abnormal opening pressure of low-pressure check valve is effectively solved.

Key words: low pressure valve; opening pressure; rubber; PTFE coating

导管架水下四桩打桩模架的技术应用

丁海东，范异峰，叶建华

（上海振华重工（集团）股份有限公司，上海200125）

摘要：四桩打桩模架，用来调整和固定钢管桩来支撑平台。钢管桩在安装过程中必须通过四桩打桩模架进行调平，调平的好坏直接影响平台的稳定性、安全性。在安装过程中需要专用液压调平机构，由此诞生了导管架水下四桩打桩模架。该文章介绍四桩打桩模架机构的构成、液压控制的特点。

关键词： 四桩打桩模架；液压系统；调平机构；对中机构

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0060-05

Jacket Four Underwater Piling Frames Technology Application

DING Hai-dong, FAN Yi-feng, YE Jian-hua

(Shanghai Zhenhua Heavy Industries Company Limited, Shanghai200125, China)

Abstract: Four pile pilling frames, used to adjust and secure steel pipe piles to support the platform. Steel pipe piles must be leveled by four pile pilling frames during installation. The quality of leveling directly affects the stability and security of the platform. During the installation process requires special hydraulic leveling mechanism, four pile jacket was born underwater piling die set. This article is to introduce the structure of four pile pilling frames and hydraulic control features.

Key words: four pile piling frames; the hydraulic system; leveling mechanism; jacket mechanism

液压制动装置中间缸体新加工工艺及验证研究

张克昌¹,袁果²

(1.湖南铁道职业技术学院,湖南株洲412001; 2.湖南联诚轨道装备有限公司,湖南株洲412001)

摘要：液压制动装置的中间缸体组装件主要由中间缸体、碟簧、缓解活塞组成。由于中间缸体是薄壁件，且具有极高的同轴度公差导致该零件加工难度增加，因而出现产品成批报废现象。通过改进中间缸体的加工工艺，确保中间缸体加工零件的同轴度公差符合设计要求，为制订同类型的零件加工工艺提供一定的参考。

关键词： 液压制动装置；中间缸体；加工工艺；验证

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0065-03

Research on New Processing Technology and Verification of Hydraulic Braking

Device Intermediate Cylinder Block

ZHANG Ke-chang¹, YUAN Guo²

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

2. Hunan Liancheng Rail Equipment Co., Ltd. Zhuzhou412001, China)

Abstract: The intermediate cylinder block assembly of the hydraulic braking device is mainly composed of the intermediate cylinder block, the disc spring and the relief piston. Because of the thin wall and high coaxiality tolerance of the middle cylinder block, it is more difficult to process the parts, so the products are scrapped in batches. By improving the machining process, the coaxiality tolerance of the processed parts of the intermediate cylinder block is ensured to meet the design requirements, which provides a certain reference for formulating the machining process of the same type parts.

Key words: hydraulic braking device; intermediate cylinder block; processing technology; verification

民用飞机液压系统防鸟撞适航符合性评估

朱海龙

(中航西飞民用飞机有限责任公司，陕西西安710089）

摘要：该文给出一般民用飞机机载系统防鸟撞评估方法，并通过对CAAC第25.631条鸟撞损伤的解读，结合民用飞机上典型液压管路布局，对鸟撞可能造成的影响区域进行评估，并给出满足适航要求的设计方法。

关键词： 飞机；适航；鸟撞；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0067-04

CivilAircraft Hydraulic System Airworthiness Compliance Assessment for Bird Bird Impact

ZHU Hai-long

(AVIC XAC Commercial Aircraft Co., Ltd.， Xi'an710089， China）

Abstract: This article provides a general civil aircraft airborne system anti-bird strike assessment method, and through the interpretation of CAAC Article 25.631 black strike damage, combined with the typical hydraulic pipeline layout on civil aircraft, the possible impact area of bird strike is evaluated, and give design methods to meet airworthiness requirements.

Key words:aircraft; airworthiness; bird impact; hydraulic system

探讨工程机械液压节能技术现状与发展

葛志伟

（上海电气液压气动有限公司，上海200237）

摘要：在国家大力提倡绿色发展、节能发展的大环境下，人们越来越意识到节约资源和保护环境的重要性。然而，随着近几年工程机械的不断发展，其能耗和环境污染问题却日趋突出。如何有效提高液压系统的节能特性，成为了当前研究的热门课题。该文主要以工程机械液压节能技术现状为切入点，同时也对工程机械液压节能技术的发展趋势作出了思考。

关键词：工程机械；液压；节能技术；现状；发展趋势

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0070-04

The Status and Development of Energy Conservation of Hydraulic

System for Construction Machinery

GE Zhi-wei

（Shanghai Electric Hydraulics & Pneumatics Co., Ltd., Shanghai200237, China）

Abstract: In the circumstance of environment-friendly development and energy conservation in China, people are aware of the importance of resource conservation and environmental protection further more. However, with the development of construction machinery in recent years, high energy consumption and environmental pollution has become increasingly prominent problem in construction machinery field. How to effectively improve the energy saving characteristics of hydraulic system has become a hot research topic at present. Therefore, this paper is not only to introduce the status of energy saving technology of hydraulic system for construction machinery, but also to discuss the development of energy saving technology of hydraulic system for construction machinery.

Key words: construction machinery; hydraulic system; energy saving technology; the status； the development

一种履带链销轴拆装机的设计

贾照丽¹，张俊²

（1.广州工程技术职业学院，广东广州510925； 2.中交四航局第二工程局有限公司，广东广州510230）

摘要：履带销轴是工程机械中的一个重要连接部件，在工程施工过程中，常常由于销轴的磨损而导致设备不能正常运行。针对由于销轴的拆装而导致工期的滞后的问题，该文设计一款销轴拆装装置，能够在现场进行灵活拆装销轴，适合于工况比价恶劣的场地。

关键词：销轴；履带；工程机械；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0074-03

Design of a Track Chain Pin Disassembly Machine

JIA Zhao-li¹，ZHANG Jun²

（1. Guangzhou Institute of Technology, Guangzhou510925, China;

2. The Second Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd., Guangzhou510230, China）

Abstract: Track pin is an important connecting component in construction machinery. During the construction process, the equipment often cannot operate normally due to the wear of the pin. Aiming at the problem of the lag in the construction period due to the disassembly and assembly of the pin, this paper designs a pin disassembly device that can flexibly disassemble and assemble the pin on the spot, which is suitable for sites with poor working conditions and price comparisons.

Key words: pin shaft; track; construction machinery; design

“零排放”挖掘机系统研究

任健，刘彬，李兆强

（林德液压（中国）有限公司，山东潍坊261061）

摘要：随着关于环境保护的法规越来越严格，减少使用化石能源成为一种趋势。对于在工作过程中消耗大量能源的移动机械来说，节能减排也是重要一项课题。目前，移动机械的主要能量供应为内燃机，常规解决方案是使用电驱动部分或者彻底取代内燃机。全电驱动被认为在未来将会是最终解决方案。然而，实现电驱动取代较为困难，同时在某种程度上，需要改变整个液压系统。该文研究了传统挖掘机液压系统的工况及效率情况，提出零排放挖掘机两种边界解决方案。

关键词：液压；挖掘机；零排放；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0077-07

Research On “Zero Emission” Excavator System

REN Jian，LIU Bin，LI Zhao-qiang

（Linde Hydrualics（CHINA）, Weifang261061, China）

Abstract: The legislation regarding environment protection becomes more and more strict. There is a trend to reduce the using of fossil energy. The mobile machines consume considerable amount of fuel during their operation, so these kinds of machines need to be improved accordingly. A common solution for this is to partially or completely replace the internal combustion engine by electric drives. A full electric driven system is regarded as the ultimate solution in the future. However, the replacement of electric drives is not easy to be realized and it requires to change the system layout along with the production lines to a great extent. This paper analyzes the work conditions and efficiency of traditional excavator, and proposes two different limit solutions for excavator.

Key words: hydraulic; excavator;  zero emission; research

矿用运输车辆全液压转向系统设计与应用

马艳卫

（中国煤炭科工集团太原研究院有限公司，山西太原030006）

摘要：该文针对矿井下特殊的工作环境，介绍了全液压转向的4种转向控制方式，分别说明了助力转向、全液压转向、流量放大器转向和多路阀控转向的工作原理、特点，结合生产厂家给出的转向元件的具体参数以及实际工况给出了选型设计计算，具体指出了各转向形式的适用范围，选型匹配时的注意事项，总结了全液压转向系统的设计方法，为矿用车辆转向系统的设计选型匹配提供一套行之有效的方法及经验。

关键词： 全液压转向；流量放大器；多路阀；铰接转向；优先阀

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0083-04

Design and Application of Full Hydraulic Steering System for Mine Transport Vehicle

MA Yan-wei

(Taiyuan Research Institute Company Limited, China Coal Technology and

Engineering Group，Taiyuan030006, China)

Abstract: According to the Special Working Environment in the mine, this paper introduces four steering control modes of full hydraulic steering, and explains the working principles and characteristics of power steering, full hydraulic steering, flow amplifier steering and multi-way Valve steering respectively, combining with the specific parameters of the steering element given by the manufacturer and the actual working conditions, the type selection design calculation is given, and the applicable scope of each steering form and the matters needing attention in type selection and matching are pointed out in detail, the design method of full hydraulic steering system is summarized, which provides an effective method and experience for the design and selection of steering system.

Key words: full hydraulic steering; flow amplifier; multiplex valve; articulated steering; priority valve

挖掘机液压控制系统分析

马琛俊

（上海电气液压气动有限公司，上海200237）

摘要：挖掘机是人类开拓自然、改造自然的重要工具，且挖掘机行业是工程机械中最具代表性的子行业。因此，提高挖掘机的节能性和操纵性对工程机械的发展具有重要的意义。现代挖掘机液压系统仍普遍采用正流量控制技术，负流量控制技术以及负载敏感（LS以及LUDV）控制技术。该文着重分析了以上4种应用于挖掘机的系统控制特性，并阐述了它们各自的优缺点，为挖掘机的设计或生产提供参考依据。

关键词： 挖掘机；正流量控制技术；负流量控制技术；负载敏感控制技术

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）10-0087-04

Analysis of Excavator Hydraulic Control System

MA Chen-jun

（Shanghai Electric Hydraulics & Pneumatics Co., Ltd., Shanghai200237, China）

Abstract: Excavators are important equipment to explore and transform nature. Excavator industry is the most representative sub-industry in construction machinery . Therefore, it is important for the development of construction machinery to improve the operability and ability to save energy. Hydraulic systems of modern excavators still adopt positive flow control technology, negative flow control technology and load sensitive (LS and LUDV) control technology. The article focuses on the analysis of controlling properties of four system applied in excavators, elaborates their advantage and disadvantage and provides references for design or production of excavators.

Key words: excavator; positive flow control technology; negative flow control technology; load sensitive control technology

挖掘机回转启动流量管理分析

赵子良，盛积成，赵金光，张西田，张立彬

A Flow Strategy of Startup on Excavator Swing

ZHAO Zi-liang, SHENG Ji-cheng, ZHAO Jin-guang, ZHANG Xi-tian, ZHANG Li-bin

（潍柴动力股份有限公司应用工程中心，山东潍坊261000）

摘要：分析挖掘机回转启动的运动学特征，论证传统流量管理方法的缺陷，提出“两段式”流量管理方法，并对该方法在整机上的表现进行了试验验证。

关键词：挖掘机回转；流量管理；节能；启动冲击

中图分类号：TH137文献标志码：B文章编号：1008-0813（2021）10-0091-03

基于故障树的正面吊臂架上升速度慢故障诊断研究

周东才，盘俊

（三一海洋重工物流设备研究院，广东珠海519000）

摘要：运用故障树分析法，以正面吊臂架俯仰上升速度慢为顶事件，通过分析系统故障形式、臂架俯仰液压系统结构及工作原理，建立了液压系统故障树图，通过系统最小割集和底事件重要度的计算求解对系统进行了定性和定量分析。分析结果表明泵吸油管路及主阀控制油路中减压阀及溢流阀失效是造成故障发生的主要原因，为故障诊断及完善系统提供指导。

关键词： 臂架俯仰系统；故障树；重要度；研究

中图分类号：TH137；TH17文献标志码：A文章编号：1008-0813（2021）10-0094-03

Study on Fault Diagnosis of the Tilting System of Reach Stacker Based on Fault Tree Analysis

ZHOU Dong-cai，PAN Jun

(Harbor machinery Research Institude, Sany ocean Heavy Industry Co., Ltd., Zhuhai519000, China)

Abstract: Based on the Fault Tree Analysis (FTA), the fault tree of tilting system of Reach Stacker is established by analyzing system failure form, system structure and operating principle. The qualitative and quantitative analyses are carried out through computing the minimum cut sets and the importance. The results show that the fault is mainly caused by the breakdown of operating pump oil suction tube and pressure reducing valve and relief valve of main valve control oil circuit. The study can provide guidance to routine maintenance and repair.

Key words: tilting system of arm frame; fault tree; importance; study