中国液压气动密封工业协会会刊
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2016年第6期 总第36卷   中英文目次

设计与研究

反馈通道含有间隙对电液位置伺服系统特性的影响研究 ………………………魏列江,等(1)

液压变压器技术应用推广前景展望………………………………郭仁发(4)

直动式纯水溢流阀设计与仿真分析…………………………张东东,等(6)

斜齿轮泵流量及其流量脉动特性分析………………………张 静,等(8)

乳化液介质电磁卸荷阀内气蚀现象的仿真研究…………解 浩,等(12)

机械装备中的惯性力补偿控制方案研究 …………………桑 勇,等(17)

客车制动气室气体入口直径对压力特性影响的研究……亓 旺,等(21)

核主泵密封用减压盘管的阻力特性研究 …………………李 香,等(26)

一种带自保功能的气动执行机构设计 …………………………路登明(30)

并联型双吸、排油口轴向柱塞泵应用仿真研究 ………师艳平,等(33)

气缸加工中间隙及转速对复合螺旋磨粒流加工特性影响研究 ………………………黄 成,等(38)

 

系统与应用

冲洗阀工作特性仿真分析 ……………………………………马吉光,等(42)

滑油喷嘴试验系统设计 ………………………………………杨 凯,等(45)

涡旋真空泵实际型线设计 ……………………………………蔡志娟,等(47)

液压缸安全锁止系统的分析与改进…………………………孔德美,等(49)

具有分段关闭功能的主配压阀研究及应用 ………………吴 缙,等(51)

提高热锻模使用寿命的方法探索 ………………………………史开阳(53)

食品级液压油的开发及应用……………………………李万英,陈惠卿(57)

漂浮取水泵液压驱动系统方案设计及性能校核…………吴 杰,等(58)

比例换向阀在实际应用中几个关键问题的探讨…………滕 达,等(63)

基于管路压力损失对液压系统可靠性影响的分析与研究 …………………沈千里,等(65)

 

使用与维护

气分装置轻烃泵机械密封失效故障分析…………………张小勤,等(69)

 

 

新产品  新技术  新工艺

某型压力控制阀壳体裂纹分析及改进 …………………………景宇红(71)

流体介质产品密封环结构数控加工工艺方法……………林 娜,等(74)

 

企业之声

 

 

 

 

 

工业4.0给流体技术行业带来的机遇和挑战

…………………………………………………………………张海平博士 译 (78)

PTC ASIA 2015高新技术展区现场技术报告(之十五~十六)

…………………………………………………………… 本刊编辑 张婷婷(90)

 

  

Design & Research

Effect of Feedback Channel with Clearance on Electro-hydraulic Position Servo System Feature …………WEI Lie-jiang,et al(1)

Application Prospect of Hydraulic Transformer Technology…………………………GUO Ren-fa(4)

Design and Simulation of Direct-acting Water Hydraulc Relief Valve……ZHANG Dong-dong,et al(6)

The Characteristic Analysis on Flow Rate and Flow Pulsation of Helical Gear Pump ………… ZHANG Jing,et al(8)

Simulation of Cavitation Erosion in the Electromagnetic Unloading Valve with Emulsion ………XIE Hao,et al(12)

Research on Inertial Force Compensation Methods for Mechanical Equipments ………SANG Yong,et al(17)

Influence of Bus Brake Chamber Inlet Diameter on Pressure Characteristic………QI Wang,et al(21)

AAn Investigation of the Coiled Resistance Characteristic for Reactor Coolant Pumps Seals …………LI Xiang,et al(26)

Design of a Pneumatic Actuator with Self-protection Function……………………LU Deng-ming(30)

SSimulation on Application of Axial Piston Pump with Parallel Dual Sucking and Discharging ……………SHI Yan-ping,et al(33)

Research on Influence of Clearances and Rotating Speed on the Processing Characteristics of the Composite Screw Abrasive Flow for the Cylinder Processing ………HUANG-Cheng,et al(38)  

 

System & Application

Simulation Analysis on Perfermance of the Flushing Valve……………………MA Ji-guang,et al(42)

Design of Lubricating Oil Nozzle Test System ……………………………………YANG Kai,et al(45)

The Actual Curve Design of the Scroll Vacuum Pump …………………………CAI Zhi-juan,et al(47)

ThThe Analysis and Improvement of Security Locking System for Hydraulic Cylinder ………………KONG De-mei,et al(49)

The Research and Application of Main Distributing Valve with Step Closing Function …………WU Jin,et al(51)

An Exploration on the Way to Increase the Service Life of Hot Forging Die………SHI Kai-yang(53)

Development and Application of Food Grade Hydraulic Oil………LI Wan-ying, CHEN Hui-qing(57)

ScScheme Design and Performance Verification of Hydraulic Driving System for Floating Water Pump ………WU Jie,et al(58)

A Discussion on Several Key Issues for Electro-hydraulic Proportional Directional Valve Practical Application ……TENG Da,et al(63)

The Effect of Pipeline Pressure Loss on Hydraulic System Reliability ………SHEN Qian-li,et al(65)

 

Operation & Maintenance

FaFault Analysis of Mechanical Seal Failure for the Gas Separation Device Hydroearbon Pump …………ZHANG Xiao-qin,et al(69)

New Product, New Technology & New Process o:p>

Crack Analysis and Improvement on the Pressure Valve Housing …………………JING Yu-hong(71)

NC Machining Process Method of Fluid Products Sealing Ring Structe………………LIN Na,et al(74)

2016年第6  总第36卷      

 

反馈通道含有间隙对电液位置伺服系统特性的影响研究

魏列江1,2,吕凌亘1,2,李娜娜1,2,韩小霞1,2,王传民1,2

1. 兰州理工大学 能源与动力工程学院,甘肃  兰州   730050

2.兰州理工大学甘肃省流体机械及系统重点实验室,甘肃  兰州   730050

   要:针对电液位置伺服系统反馈传感器处存在较大间隙时,引起系统振荡加剧甚至不稳定的问题,根据位置反馈传感器同步测量缸的低阻尼特性,建立了反馈通道含有迟滞间隙特征的电液位置伺服系统的数学模型,针对一个电液位置伺服系统工程实例,利用Matlab软件对反馈通道含不同尺寸间隙的情况进行了仿真研究,结果表明:当间隙从小到大变化时,系统单位阶跃响应调节时间明显加长,超调量也逐渐增大,当间隙值增大至0.08mm时,出现极限环振荡,系统不能稳定工作。

关键词:反馈通道;安装间隙;阀控缸模型;极限环振荡

中图分类号:TH137    文献标志码:A    文章编号:1008-0813201606-0001-04

Effect of Feedback Channel with Clearance on Electro-hydraulic

Position Servo System Feature

WEI Lie-jiang1,2LV Ling-gen1,2LI Na-na1,2HAN Xiao-xia1,2WANG Chuan-min1,2

(1. School of Energy and Power Engineering, Lanzhou University of Technology Lanzhou  730050,China

2.Key Laboratory of Fluid Machinery and System Lanzhou  730050,China)

AbstractElectro-hydraulic position servo system works instability and engenders limit cycle oscillation which caused by the sensor feedback with a big clearance. Depending on the position feedback sensors simultaneously measuring cylinder low damping characteristics, it is established that the model of electro-hydraulic position servo system whose feedback channel contains clearance mathematical model with hysteresis characteristics. For an electro hydraulic servo system engineering example, it is simulated by Matlab software through feedback channels with different size of the clearance. The results show that when the clearance is changed from small to large, the system unit step response settling time significantly gets longer and overshoot increases. The limit cycle oscillation occurs when the clearance value increases to 0.08mm. The system is instable.

Key words feedback channel; clearance; valve-controlled hydraulic; limit cycle oscillation

 

 

 

 

 

液压变压器技术应用推广前景展望

郭仁发

Application Prospect of Hydraulic Transformer Technology

GUO Ren-fa

(武汉自动控制阀门厂,湖北  武汉  430012

   要:该文尝试给出“液压变压器”的定义,并阐述其对于液压系统的重要性。同时推介一项发明专利:“一种液压变压器”申请公布号:CN105179333A,简述其技术优势。在此基础之上,展望了液压变压器技术应用推广的前景,并对深入研究液压变压器技术,拓宽应用领域,进行更多的创新实践的方向进行了探讨。

关键词:液压变压器恒压网络;流体传动

中图分类号:TH137    文献标志码:B   文章编号:1008-0813201606-0004-02

 

 

 

 

直动式纯水溢流阀设计与仿真分析

张东东1,杨国来1,2,李明学1,王建忠1

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

  要:通过给定的性能要求和试验要求,对纯水溢流阀进行了结构设计,几何尺寸计算和动态特性研究,在AMESim环境下建立了仿真模型,并用实验台输出曲线验证了该模型的正确性,通过FLUENT软件对直动式纯水溢流阀内部流场进行了仿真,进一步肯定了该结构参数的可行性,其结构参数对后续研究工作具有一定的参考意义。

关键词:溢流阀; 结构设计; 动态特性; AMESim

中图分类号:TH137.7     文献标志码:A   文章编号:1008-0813201606-0006-02

Design and Simulation of Direct-acting Water Hydraulc Relief Valve

ZHANG Dong-dong1, YANG Guo-lai1,2, LI Ming-xue1, WANG Jian-zhong1

1.College of Energy and Power EngineeringLanzhou University of TechnologyLanzhou 730050China

2.Wenzhou Engineering Institute of Pump & ValveLanzhou University of TechnologyWenzhou 325105China )

AbstractIn the paper,depending on the property and experimental requirements,it designs the struction, size-setting and the research of dynamic characteristics of water hydraulic relief valve.A simulation model established in the AMESim environment is compared with the test-bed model to verify that it is correct.the internal flow of a direct-acting pure water relief valve is carried out by applying fluent.And the feasibility of the method is further confirmed through a series of simulation of this model.

Key wordsrelief valve; structional design; dynamic characteristic; AMESim

 

 

 

 

斜齿轮泵流量及其流量脉动特性分析

  静,史伟东,胡  亮,李小军

(兰州理工大学能源与动力工程学院,甘肃  兰州   730050

   要:采用直接积分法推导斜齿轮泵瞬时流量时,在非全齿宽啮合区间内,螺旋角的存在使得积分表达式沿齿宽方向存在两个周期,需要对基准面啮合点处转角做相应变换,然后分段积分再求和,工作困难且繁琐。基于迭加原理,借助MATLAB软件用更直观的图象法来研究斜齿轮泵的瞬时流量及流量脉动特性。分析表明,在满足斜齿轮泵正常工作的条件下,其瞬时流量在不同螺旋角和齿宽下呈现不同的变化规律;齿宽一定时,流量不均匀系数与螺旋角成线性反比关系;螺旋角一定时,流量不均匀系数与齿宽成线性反比关系,且在临界齿宽和临界螺旋角处达到最小。

关键词:斜齿轮泵;迭加原理;瞬时流量;流量不均匀系数

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0008-04

The Characteristic Analysis on Flow Rate and Flow Pulsation of Helical Gear Pump

ZHANG JingSHI Wei-dongHU LiangLI Xiao-jun

(College of Energy and Power EngineeringLanzhou Univ. of Tech.

Lanzhou  730050China)

AbstractWhen using direct integration method to derive the flow rate of helical gear pump, there are two integral expressions along the tooth width direction due to the existence of helix gear within the range of non-whole tooth width mesh, thus there is a need to transform the rotation angel of the meshing point at the datum plane accordingly and then sum of integral results along different widths, which is difficult and tedious. The characteristics of flow rate and flow pulsation of helical gear pump are studied with a more intuitive image method using MATLAB software, based on the principle of superposition. Research shows that, when meeting normal operating conditions, the flow rate of helical gear pump shows different variation laws at different helix angles and tooth widths; the non-uniform coefficient of flow rate is in linear inverse proportion to helix angle when tooth width is constant; the non-uniform coefficient of flow rate is in linear inverse proportion to tooth width when helix angle is constant, which decreases to the minimum value at critical tooth width and helix angle.

Key wordshelical gear pump the principle of superposition flow rate non-uniform coefficient of flow rate

 

 

 

 

乳化液介质电磁卸荷阀内气蚀现象的仿真研究

解 浩1,郑 直1,冀 宏1,韦文术2,徐 鹏2

1.兰州理工大学  能源与动力工程学院,甘肃  兰州   730050

2.北京天地玛珂电液控制系统有限公司,北京  100013

   要:电磁卸荷阀是乳化液泵站压力控制和过载保护的关键元件,但在实际使用约1500h后,其主阀套四个出口之间的钢制内壁面几乎被气蚀蚀穿。该文运用AMESimFluent对乳化液泵站电磁卸荷阀内部的空化流动进行联合仿真,由AMESim仿真阀口开度随时间的变化规律;使用FluentZwart空化模型,对阀套的气蚀破坏现象进行研究。研究表明电磁卸荷阀阀口开度越小,阀口后部低压区面积越大,空化越严重;空化流冲击阀套出口间的壁面,气泡迅速溃灭并对内壁材料造成气蚀破坏;主阀频繁开启使气蚀呈脉冲式,间歇式地犁沟阀套内壁,导致阀套出现裂隙。最后,提出了阀腔流域设计的改进办法。

关键词:乳化液;电磁卸荷阀;小阀口;脉冲式气蚀;空化流动

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0012-05

Simulation of Cavitation Erosion in the Electromagnetic Unloading Valve with Emulsion

XIE Hao1ZHENG Zhi1JI Hong1 WEI Wen-shu2XU Peng2

(1.College of Energy and Power Engineering, Lanzhou Univ.of  Tec. ,

 Lanzhou  730050, China

2.Tian-Marco Electro-Hydraulic Control System Co., Ltd.

Beijing  100013,China)

AbstractThe electromagnetic unloading valve was selected as the key parts for pressure control and overload protection in the emulsion pump station. However, the steel inner wall between the four outlet holes in the main valve sleeve have been severely cavitation eroded after working about 1500 hours. It has a large impact on the stability and reliability of pumping station work. In this paper, numerical investigation of the cavitating flow in electromagnetic unloading valve is carried out by using AMESim and Fluent software. The time-dependence of valve opening and the pressure change in working condition are obtained by AMESim, the cavitation erosion of valve sleeve is studied by Kunz cavitation model. The study shows that the decrease of opening of the valve can result in the augment of the low-pressure area and the cavitation degree; the cavitating flow is blocked by the inner walls between the outlet holes, the flow impact pressure lead to bubbles collapse and cavitation erosion; the frequently open of main valve cause impulse cavitation erosion and erode inner walls intermittently, finallythe valve sleeve cracked. At last, an improved design of valve chamber has been proposed.

Key  wordsemulsionelectromagnetic unloading valvesmall valve openingimpulse cavitation erosioncavitating flow

 

 

 

 

 

机械装备中的惯性力补偿控制方案研究

桑 勇,王亚杰,赵健龙,邵利来,胡登极

(大连理工大学机械工程学院,辽宁  大连   116024

   要:惯性是物理学中最基本的概念之一,惯性力存在于一切有质量且构件质心有加速度或有角加速度的机械装备中。当机械装备启动、急停、高加速度运转时,随着机械零部件运动而产生的惯性作用会给装备本身产生附加力,不仅会增加运动副中的摩擦力和构件内应力,还会影响设备的控制精度。大型、重型液压装备由于其运动部件质量大,动态加载时较大的加速度会产生很大的惯性力,给动态控制带来不利影响。基于此,该文阐述了目前机械领域中针对惯性力的补偿研究成果,从回转运动场合,平面运动场合和复合运动场合三个方面对惯性力补偿控制问题进行了详细的分类和总结,希望能对大型、重型液压装备中不同运动场合的惯性力补偿控制方案研究提供参考。

关键词:惯性力;回转机构;平面机构;补偿

中图分类号:TH137     文献标志码:A   文章编号:1008-0813201606-0017-05

Research on Inertial Force Compensation Methods for Mechanical Equipments

SANG Yong WANG Ya-jie ZHAO Jian-long SHAO Li-lai HU Deng-ji

(School of Mechanical Engineering, Dalian University of Technology,

Dalian 116024, China)

AbstractInertia is one of the most fundamental concepts in physics. For all the acceleration mass or the angular acceleration mass, there are always the inertial forces in the mechanical equipments. The additional inertial force will be generated when the mechanical equipment starts to run, stop or make high acceleration. The additional inertial force will not only increase the friction force and the internal stress between the mechanical parts and components, but also decrease the control accuracy of the equipment. Due to the huge mass of moving part, it will produce the large inertial force for the heavy-duty hydraulic equipment during the dynamically operating. The large inertial force has a negative effect on the accurate control. Based on above reason, the paper describes the recent research results of the inertial force compensation in the mechanical field. The search results are summarized according to different moving styles like rotary motion, plane motion and composite motion. The paper will provide a reference for the research on the inertial force compensation scheme for the large and heavy-duty hydraulic equipment.

Key wordsinertial force; turning mechanism; plane institutions; compensation

 

 

 

 

 

客车制动气室气体入口直径对压力特性影响的研究

  旺,李刚炎,卢  谦,龙 

(武汉理工大学机电工程学院,湖北  武汉  430070

  要:根据客车气压制动系统,建立气室气体入口、气室内腔压力等关键部件的数学模型,参照国际标准搭建制动气室压力特性试验平台;通过试验与仿真,导出四种入口直径下的气室内腔压力、推杆位移等试验和仿真参数;从压力响应时间、系统节能、系统稳定性三个方面分析气室气体入口直径对压力特性的影响。试验和仿真数据结果具有良好的一致性,可为制动气室的分析与设计提供参考。

关键词:制动气室;压力特性;入口直径;影响

中图分类号:TH138U463.5     文献标志码:A   文章编号:1008-0813201606-0021-05

Influence of Bus Brake Chamber Inlet Diameter on Pressure Characteristic

QI  Wang, LI Gang-yan, LU Qian, LONG Xiang

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China

AbstractMathematical model of chamber inlet, chamber internal-pressure and other key components are developed based on bus air brake system, and brake chamber pressure characteristics test loop is build with reference to relevant standards. Such as chamber internal-pressure, push rod displacement and other experimental and simulation data of four sizes inlet diameter is obtained. Then from pressure response time, system energy saving and system stability three aspects analyzes the impact chamber inlet diameter on brake chamber pressure characteristics. The good consistency of test and simulation data can provide a reference for the analysis and design of brake chamber.

Key  wordsBus Brake chamber; Pressure characteristics; Inlet diameter; influence

 

 

 

核主泵密封用减压盘管的阻力特性研究

  香,刘  杰,吴兆山,杨博峰,丁思云

(合肥通用机械研究院,安徽  合肥   230031

  要:采用CFD软件分析盘管几何参数和流体物理参数变化对盘管阻力特性的影响。结果表明,盘管管径越小盘管的阻力系数越大,盘管直径越小阻力系数越大。而扭率值较小时,盘管扭率对盘管阻力系数影响不大。流体的流速越大温度越高,盘管的阻力系数越小。核主泵用减压盘管已定后,可以通过改变流体流速和流体温度,调节流体动压型机械密封的密封性能。

关键词:核主泵;减压盘管;CFD;阻力特性

中图分类号:TB42    文献标志码:A   文章编号:1008-0813201606-0026-04

An Investigation of the Coiled Resistance Characteristic for Reactor

Coolant Pumps Seals

LI Xiang, LIU Jie, WU Zhao-shan, YANG Bo-feng, DING Si-yun

(Hefei General Machinery Research Institute, Hefei 230031,China)

AbstractThe influence of geometric parameter and fluid physical parameter on the resistance characteristic of the coil are analyzed with CFD. The results show that the resistance factor is bigger.with the smaller of the diameter of the coil pipes and the coil. While the torsion rate change small, it have less influence on the resistance characteristic of the coil, the resistance factor is smaller with bigger velocity and higher temperature. With the selected coil in reactor coolant pumps, change the velocity and the temperature of the fluid can insure the seal performance of the hydrodynamic mechanical seal.

Key words reactor coolant pumps; the pressure breakdown coil; CFD; resistance characteristic

 

 

 

 

 

一种带自保功能的气动执行机构设计

路登明1,2

1.渤海装备兰州石油化工机械, 甘肃  兰州   730060

2.甘肃省炼化特种装备工程技术研究中心,甘肃  兰州   730060

   要:气动执行机构作为一种自控设备被广泛应用于催化裂化装置,但在运行过程中可能会遇到断电、失气等突发状况。在突发事故状态下,气动执行机构本质安全、不引起其他连锁设备运行失控、不造成二次灾害、常满优高效运行对装置安全和生产保障都十分重要。基于安全生产考虑,结合催化裂化装置中气动执行机构的使用状况,“一种带自保功能的气动执行机构” 通过创新原理设计,提升了装置安全可靠性,完全能满足石化行业对自控设备安全可靠的要求。

关键词:自保;气动;执行机构;设计

中图分类号:TH138     文献标志码:A   文章编号:1008-0813201606-0030-04

Design of a Pneumatic Actuator with Self-protection Function

LU Deng-ming

1.Bohai Equipment Lanzhou Petrochemical Machinery Works,Lanzhou 730060 ,China

2.Engineering Research Centre for Refinery Specialty Equipment of

Gansu,Lanzhou 730060China

AbstractAs an automatic control device,pneumatic actuators are widely used in catalytic cracking unit,but it may encounter power outages and loss of air pressure during operation. In this state, the essence of pneumatic actuators are safe, and do not cause other equipment out of control, do not cause secondary disasters and efficient operation are very important for device.Based on security considerations, combined with usage of pneumatic actuator in catalytic cracking unit, through the innovation principle, the safety and reliability of the device is improved, a pneumatic actuator with self-protection function can meet the requirements of petrochemical industry

Key wordsself-protection pneumatic actuator design

 

 

 

 

并联型双吸、排油口轴向柱塞泵应用仿真研究

师艳平1,张  2,权  3,高有山23

1.山西汾西重工有限责任公司,山西  太原   030027

2.太原科技大学机械工程学院,山西  太原   030024

3.太原理工大学机械电子工程研究所,山西 太原   030024

   要:并联型双吸、排油口轴向柱塞泵有多种工作方式,其结构可通过将两口轴向柱塞泵吸、排油窗口分别改为并联布置的两个窗口加以实现,采用10个柱塞以达到流量均衡的目的。为分析其流量压力输出特性及加载后的工作情况,应用SimulationX软件对液压泵进行建模,并对其不同工作方式下加载不同类型的负载进行仿真实验。仿真结果表明,柱塞在配流盘死点区域与配流窗口接通瞬间,由于通流面积的突变会造成短暂的压力流量冲击现象,转速越高,脉动越大,可通过综合运用减震三角槽减小过渡区域面积等措施减小冲击。液压泵转速进行正反转切换时,也会产生一定的流量压力冲击,转速不可进行瞬时正反转转换。

关键词:斜盘式轴向柱塞泵;泵控液压系统;配流盘;并联

中图分类号:TH137     文献标志码:A   文章编号:1008-0813201606-0033-05

Simulation on Application of Axial Piston Pump with Parallel Dual

 Sucking and Discharging

SHI Yan-ping1, ZHANG Yi2, QUAN Long3, GAO You-shan2,3

(1.Shanxi Fenxi Heavy Industry Co.,Ltd.,Taiyuan  030027,China;

2. Institute of Mechatronics Engineering,Taiyuan University of Science and Technology,Taiyuan  030024,China;

3. College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan  030024,China)

AbstractParallel dual sucking and discharging axial piston pump has a variety of working methods, its structure could be achieved by changing the axial piston pump suction and action window into two paralleled windows, and 10 plungers were applied to achieve the purpose of flow rate equilibrium. In order to analyze the flow pressure output characteristics and the working conditions under loading, SimulationX software was used to model the hydraulic pump, and simulate different load application with different working conditions. The simulation results show that the moment when the valve plate dead area connected to the assignment window, transient pressure and flow impact phenomenon will occur due to drastic change of flow area, and the higher the speed is, the greater the ripple is. The flow pulse and pressure impact of the single plunger can be reduced through comprehensive use of transitional triangle groove, reducing the transition area and other measures. When the pump rotation is being reversed, it can also produce a certain flow pressure impact. Therefore the instant pump rotating direction change should be disallowed.

Key wordsaxial piston pump; pump controlled hydraulic system; valve plate; parallel

 

 

 

 

气缸加工中间隙及转速对复合螺旋磨粒流加工特性影响研究

  成,袁巧玲,孙建辉,褚  聪,沈 

(浙江工业大学  机械学院, 浙江  杭州   310014

  要:针对复合螺旋磨粒流加工效果的研究,提出考虑加工件与复合螺旋磨粒流的螺旋块之间的间隙对磨粒流的加工效果影响,建立不同间隙的螺旋流道的有限元模型,计算分析在不同间隙的条件下复合螺旋流场的特性(压力、湍流强度等)。结果表明:在三种设置值(1mm1.5mm2mm)比较结果下,间隙为1.5mm时,流场的综合特性表现得最好。该文还基于螺旋块不同转速对加工效果的影响进行了实验研究,结果表明:螺旋块在一定的转速下,能有效提高复合螺旋磨粒流的加工效果。

关键词:复合螺旋;间隙;转速;有限元模型

中图分类号:TH138     文献标志码:A   文章编号:1008-0813201606-0038-04

Research on Influence of Clearances and Rotating Speed on the Processing Characteristics of the Composite Screw Abrasive Flow for the Cylinder Processing

HUANG-Cheng YUAN Qiao-lingSUN Jian-huiCHU-CongSHEN-Ming

(College of Mechanical Engineering , Zhejiang University of Technology, Hangzhou 310014, China)

AbstractAiming at machining effect research of the compound spiral grinding abrasive flow,considering the effect of the gap between the machined workpiece and the screw block of the composite screw abrasive flow,the finite element model is established to calculate the characteristics of the complex flow field under different clearances.The results show that when the gap is (1mm,1.5mm.2mm),the performance of the intergrated performance of the flow field is the best when the gap is 1.5mm.In this paper,the effects of different rotating speed of the field is on the machining results are studied.The results show that the screw block at a certain speed can improve the processing effect of the composite screw abrasive flow.

Key wordscomposite screw; clearance; totating speed; finite element model

 

 

 

 

冲洗阀工作特性仿真分析

马吉光,王晋芝,杨宗平,陈新雁

(中航力源液压股份有限公司,贵州  贵阳   550018

   要:针对公司某型冲洗阀在主泵转速逐渐上升至1500r/min左右时,冲洗流量会出现跃升的现象,为了理解并解决出现此现象的问题,利用AMESim仿真软件搭建公司闭式系统冲洗阀模型进行仿真分析,与实际试验数据进行比较,结果表明,不同的阀芯弹簧预紧力,会导致冲洗阀不同的工作状态,同时也说明了AMESim仿真技术能够正确的模拟阀的工作特性。

关键词:冲洗阀;预紧力;仿真;工作特性

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0042-04

Simulation Analysis on Perfermance of the Flushing Valve

MA Ji-guangWANG Jin-zhiYANG Zong-pingCHEN Xin-yan

(AVIC Liyuan Hydraulic Co.,Ltd., GuiYang 550018,China)

AbstractThe flow of the flushing valve will be a leap in the phenomenon as the main pump speed gradually increased to about 1500r/min in our company.In order to understand and solve this problem, by making use of AMESim to build the closed-type system model,and to simulate the valve unit’s operation. Through simulation calculation, the working characteristics of the flushing valve are obtained and compared with experimental data.The working condition of different valves is different, and the working characteristics of AMESim simulation technology can be used to simulate valve.

Key  wordsflushing vavle; preload; simulation; performance

 

 

 

 

 

滑油喷嘴试验系统设计

  凯,罗  京,韩树亮

(河南航天工业总公司,河南郑州  451191

   要:该文主要论述了滑油喷嘴试验系统的主要技术指标,性能特点,工作原理及主要元器件选型。该液压系统用于滑油喷嘴的流量、流向的测试,试验过程中如果系统出现意外超压情况,电磁溢流阀会接到信号即时打开泄压,确保系统安全。系统设有回油路,试验介质通过回油滤可以有效回收,为企业有效节约成本,具有很强的使用性。

关键词:滑油喷嘴;性能特点;原理;使用性

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0045-02

Design of Lubricating Oil Nozzle Test System

YANG Kai, LUO JingHAN Shu-liang

(Henna General Company of Astronautics Industry, Zhengzhou 451191, China)

AbstractThis paper mainly tells the technical index , characteristics, principle and the component selection of the lub oil nozzle test system. The hydraulic system is used for lubricating oil nozzle flow rate and flow test. If the system in the process of test unexpected overpressure, electromagnetic relief valve will open the received signal instantaneous pressure, ensure the security of the system.Back to the oil system is set, the test medium through the oil return filter can effectively recycle, effective cost savings for the enterprise, has the very strong usability.

Key wordslubricating oil nozzle; characteristics; principle; usability

 

 

 

 

涡旋真空泵实际型线设计

蔡志娟,吕天慧,满宏献,孔桂珍

(一院十八所,北京  100076

   要:结合工程实际需要对涡旋真空泵理论型线和实际型线进行了研究,指出了设计实际涡旋型线时预留间隙的重要性以及影响预留间隙大小最为关键的三点因素,在此基础上提出了采用一次和二次阿基米德非共轭组合型线设计涡旋型线代替通常使用的圆的渐开线,给出了实际型线的设计方案、设计出涡旋盘进而加工出零件,并通过实验进行了验证,满足使用的要求。

关键词:真空泵;阿基米德螺旋;涡旋型线;设计

中图分类号:TH138     文献标志码:A   文章编号:1008-0813201606-0047-03

The Actual Curve Design of the Scroll Vacuum Pump

CAI Zhi-juan, LV Tian-hui, MAN Hong-xian, KONG Gui-zhen

(China Academy of Launch Vehicle Technology the 18th Research Institute, Beijing  100076,China)

AbstractBoth the practical and theoretical curves are fully studied based on the engineering requirements. The importance of the reserved space when designing the practical scroll profile and three factors that affect the size of the reserved space are pointed out. Based on this, the scroll profile is designed with Archimedes non conjugate combination with one and two times instead of circular involute that commonly used. The design scheme of the practical scroll profile has been given, scroll disk has been designed and processed, and through the experiment, it has been verified that the request of the use is met.

Key wordsvacuum pump; Archimedes helix; scroll profile; design

 

 

 

 

液压缸安全锁止系统的分析与改进

孔德美,李  涛,刘邦才

The Analysis and Improvement of Security Locking System for Hydraulic Cylinder

KONG De-mei, LI Tao, LIU Bang-cai

(徐州徐工液压件有限公司,江苏  徐州   221000

   要:针对大型工程机械车辆臂架伸出后,出现自动下掉的现象,分析臂架下掉的原因和液压缸锁止系统的工作原理,指出锁止系统的不足,增加了一种利用液压控制的机械锁止装置,改进了锁止系统,并通过试验验证了改进措施的有效性,提高了锁止系统可靠性。

关键词:液压缸;锁止系统;机械锁止装置;分析

中图分类号:TH137    文献标志码:B   文章编号:1008-0813201606-0049-02

 

 

 

具有分段关闭功能的主配压阀研究及应用

  12,苑宝玉12,赵加华12,靳光永12

1.国网电力科学研究院,江苏  南京  210003 

2.南京南瑞集团公司,江苏  南京  210003

   要:该文介绍了主配压阀、分段关闭装置的工作原理,分析其分开布置的缺点。提出了具有分段关闭功能的配压阀的结构组成,并对其功能进行介绍。该型主配压阀的研究可有效方便安装、降低系统压降,并为同类产品的设计提供参考。

关键词:主配压阀;分段关闭;压降;研究

中图分类号:TH137     文献标志码:A   文章编号:1008-0813201606-0051-03

The Research and Application of Main Distributing Valve with Step Closing Function

WU Jin1,2YUAN Bao-yu1,2ZHAO Jia-hua1,2JIN Guang-yong1,2

(1.State Grid Electric Power Research Institute, Nanjing 210003, China

2.Nanjing NART Group Corporation, Nanjing 210003, China)

AbstractThe principles of main distributing valve and step-closure device was introduced, and the disadvantages of their separate arrangement was analyzed.The structure of the valve with the function of step closing was ventured,and its function was introduced.The research of this main distributing valve can be effective and convenient installation, reduce the system pressure drop, and provide reference for the design of similar products.

Key wordsmain distributing valve; step-closure device; pressure drop; research

 

 

 

提高热锻模使用寿命的方法探索

史开阳

(中航力源液压股份有限公司锻铸分厂,贵州 贵阳 550018

   要:钢质模锻件是航空液压柱塞泵的关键部件,也是主要受力部件,具有良好的组织和优良的综合力学性能。航空液压泵所用的轴类、斜盘类、分油盖类等零部件都是用热模锻件加工。由于锻压过程中,模具受到复杂的热应力和应变,常常产生严重磨损、疲劳、裂纹和变形等,不能满足生产使用要求。该文从模具在锻造过程中,产生磨损、裂纹和变形的原因进行分析,从提高模具的耐磨性、抗变形能力和抗疲劳性能等方面采取一些措施。大大提高了模具的使用寿命,满足使用要求,节约生产成本。

关键词:锻模;钢质模锻件;锻压;磨损;疲劳

中图分类号:TH137.51   文献标志码:A   文章编号:1008-0813201606-0053-04

An Exploration on the Way to Increase the Service Life of Hot Forging Die

SHI Kai-yang

(Forging & Casting Plant of Avic Liyuan Hydraulic Co.,Ltd.,

 Guiyang  550018China )

AbstractSteel forgings are not only the key components of the hydraulic piston pump for military application ,but also the main load-supporting components , with a good construction and excellent integrated mechanical properties. The shaft, swash plate and valve plate used in the aeronautical hydraulic pump are processed through hot forging die. Serious wear, fatigue, cracks and deformation leading to the failure of fulfilling production requirements usually occur during the forging process, due to the complex thermal stress and strain . This article analyses the cause of wear, cracks and deformation during the forging process and comes to the measures to improve the resistance to die wear, deformation and fatigue and so on, which greatly enhances the die service life , so as to meet the requirements and reduce production costs.

Key wordsforging diesteel forgingforgingwearfatigue

 

 

 

 

食品级液压油的开发及应用

李万英,陈惠卿

(中国石化润滑油公司,北京  100085

   要:用于与食品偶然接触场合的液压油需要使用食品级液压油。该文综述了中国石化食品级液压油的开发及应用情况。

关键词: 食品级;液压油;产品;开发

中图分类号:TH117    文献标志码:A   文章编号:1008-0813201606-0057-02

Development and Application of Food Grade Hydraulic Oil

LI Wan-ying, CHEN Hui-qing

(Sinopec Lubricant Co.,Ltd.,  Beijing 100085,China)

Abstract Food grade hydraulic oil is used in the occasions of incidental contact in and around food processing areas. This paper summarizes the development and application of food grade hydraulic oil of Sinopec.

Key words food grade; hydraulic oil; product; development

 

 

 

 

漂浮取水泵液压驱动系统方案设计及性能校核

  1,张世富2,张冬梅2,王  1

1.后勤工程学院 军事供油工程系,重庆 401311

2.后勤工程学院国家救灾应急装备工程技术研究中心,重庆 401311

   要:为了研究漂浮取水泵的液压驱动系统,该文以功能需求为牵引,对其液压驱动系统进行方案设计,绘制了液压驱动原理图,对液压泵和液压马达进行选型计算,对系统压力损失和发热温升进行了校核。结果表明,液压马达和液压泵的选型符合条件;液压泵提供的系统工作压力大于管路的总压力损失,液压系统能正常工作;在液压系统中增设风冷器,改善了系统的散热条件,在保证系统热平衡的同时,又减小了液压油箱的体积,使系统装备结构紧凑,便于轻便机动。

关键词:漂浮取水泵;液压驱动系统;方案设计;性能校核

中图分类号:TH137      文献标志码:A   文章编号:1008-0813201606-0058-05

Scheme Design and Performance Verification of Hydraulic Driving

System for Floating Water Pump

WU Jie1, ZHANG Shi-fu2, ZHANG Dong-mei2, WANG Ming1

(1.Logistical Engineering University, Military Department of Petroleum Supply Engineering, Chongqing 401311, China; 2.Logistical Engineering University, National Engineering Research Center for

Disaster & Emergency Relief Equipment, Chongqing 401311, China)

AbstractIn order to study hydraulic diving system of floating water pump, based on the functional requirements, the paper designs the scheme of hydraulic driving system, draws the hydraulic driving schematic diagram, designs and selects the hydraulic motor and pump and conducts the verification of pressure loss and heating and temperature rise. The result shows that model selections of hydraulic motor and pump are correct.

Key wordsfloating water pump; hydraulic driving system; scheme design; performance verification

 

 

 

 

比例换向阀在实际应用中几个关键问题的探讨

  达,张阿玲,谭  技,陈  炼,井 

(湖北三江航天万山特种车辆有限公司地面装备研究所,湖北  孝感   432000

  要:论述了比例换向阀正遮盖与负遮盖的基本特点,阐明比例阀压差-流量曲线在选型中的作用,分析了进口压力补偿器的优点和局限性,并提出采用出口压力补偿器的解决思路。

关键词:比例换向阀;正遮盖;压差;压力补偿器

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0063-03

A Discussion on Several Key Issues for Electro-hydraulic Proportional

Directional Valve Practical Application

TENG Da,ZHANG A-ling,TAN Ji,CHEN Lian,JING Jiang

Hubei Sanjiang Space Wanshan Special vehicle Co., Ltd.  Institue of Ground Equipment, Xiaogan 432000,China

AbstractThe paper discusses the fundamental feature of positive-overlap and negative-overlap,and it expound that the pressure-flow characteristics play an important role in the selection of proportional value.Then,the paper ananlyzed the advantages and limitations of inlet pressure compensator,and proposed the solution of outlet pressure compensator.

Key wordselectro-hydraulic proportional directional valve; positive-overlap; pressure difference; pressure compensator

 

 

 

 

 

 

 

基于管路压力损失对液压系统可靠性影响的分析与研究

沈千里,邱艳峰,石  峰,孙远洋

(徐州徐工施维英机械有限公司,江苏  徐州   221000

  要:流体流经液压管路产生的压力损失往往比较小而在液压系统设计时被忽略,在对压力敏感的控制系统中如果被忽略将会引起系统故障,甚至使整个系统瘫痪。该文结合所设计试验台控制系统中管路压力损失对控制系统带来的影响的分析排除过程,给出流体流经管路产生的压力损失主要组成部分的计算公式,并通过仿真过程详细阐述管路压力损失在管路设计中的重要性。

关键词:管路压力损失;沿程压力损失;局部压力损失;AMESsim影响

中图分类号:TH137    文献标志码:A   文章编号:1008-0813201606-0065-05

The Effect of Pipeline Pressure Loss on Hydraulic System Reliability

SHEN Qian-li, QIU Yan-feng, SHI Feng, SUN Yuan-yang

( Xuzhou XCMG SCHWING Machinery Co., Ltd.  Xuzhou  221000,China)

AbstractSince the pressure loss during fluid flowing through hydraulic pipeline is small, it is often neglected during hydraulic system design. However, if neglected in the control system sensitive to pressure, it will cause system faults and even paralysis of the whole system. This paper provides the calculating formula of the main components of pressure loss produced during liquid flowing through pipeline by combining the analytical elimination of the influence of pipeline pressure loss in designed test-bed control system on control system and illustrates the importance of pipeline pressures loss in pipeline design in detail through simulation process.

Key wordspipeline pressures loss; pressure loss in the route; local pressure loss; AMESim effect

 

 

 

 

气分装置轻烃泵机械密封失效故障分析

张小勤1,莫才颂1,陈华豪1,林荣雄2,刘绍静3

1.广东石油化工学院 机电工程学院,广东  茂名  525000

2.茂名西南石化工程建设有限责任公司,广东  茂名  525000

3.华南师范大学  物理与电信工程学院,广东  广州  510631

   要:针对气分装置轻烃泵原采用多弹簧机械密封时,使用周期短、可靠性和稳定性差、介质泄漏严重等突出问题,提出了采用双端面机械密封并对参数进行了合理设计,较好地解决了密封介质频繁泄漏问题,密封效果好,使用寿命长,端面温度低,有效控制了因高温造成的密封圈老化,此外,辅助系统结构简单,冷却水用量少,经济效益好,符合长周期安全运行的要求及环境保护要求,具有工业推广价值。

关键词:轻烃泵;机械密封;故障分析;装置

中图分类号:TH138TB42   文献标志码:A   文章编号:1008-0813201606-0069-03

Fault Analysis of Mechanical Seal Failure for the Gas Separation

Device Hydroearbon Pump

ZHANG Xiao-qin1, MO Cai-song1, CHEN Hua-hao1, LIN Rong-xiong 2, LIU Shao-jing3

1.Guangdong University of  Petrochemical  Technology, Maoming 525000, China

2.Maoming Ethylene  Plant of  Petrochemical  Corporation, Maoming  525000, China

3.South China Normal University School of Physics and Telecommunication Engineering, Guangzhou  510631, China)

Abstract In view of points gear pump used in light hydrocarbon gas spring mechanical seal, use cycle is short, poor reliability and stability, medium leakage such outstanding problems as serious, proposed uses the double mechanical seal and the parametersfor the reasonable design, better solve the problem of frequentleakage of sealing medium, good sealing effect, long service life, low end face temperature, effective control of the sealing ring of aging caused by the high temperature, in addition,the auxiliary system structure is simple, less dosage of cooling water, economic benefit is good, accord with the requirement of long period safe operation and environmental protection requirements, the industrial promotion value.

Key words light hydrocarbon pump mechanical seal fault analysis device

 

 

 

 

某型压力控制阀壳体裂纹分析及改进

景宇红

(南京机电液压工程研究中心航空机电系统综合航空科技重点实验室,江苏 南京  211106

   要:通过对某型压力控制阀壳体裂纹进行宏观和微观形貌的观察,并结合金相检验、有限元分析等手段,对其失效原因进行了分析。并根据分析结果,对壳体结构进行设计改进,避免了同类故障再次发生。

关键词:压力控制阀壳体;疲劳裂纹;有限元分析;断口及显微组织分析

中图分类号:TH137TB303     文献标志码:A    文章编号:1008-0813201606-0071-03

Crack Analysis and Improvement on the Pressure Valve Housing

JING Yu-hong

Nanjing Engineering Institute of Aircraft System, Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration, Nanjing  211106,China

AbstractThe fracture reason of the crack of a certain type of pressure control valve housing was analyzed by macro and micro-fractography, metallographicexa-

mination and finite element analysis. The designer changes the shell structure on basis of the analysis to avoid the same fault.

Key wordspressure control valve housing; fatigue crack; finite element analysis; fracture and microstructure analysis

 

 

 

 

流体介质产品密封环结构数控加工工艺方法

  1,李  2,乔  1,汪开斌1

1.湖北三江航天红峰控制有限公司,湖北 孝感  432000

2. 武汉三江航天远方科技有限公司,湖北武汉  430035

   要:随着航空航天技术的发展,对流体介质产品的密封性能要求越来越严格。密封面加工精度要求高,传统纯手工加工合格率低,正在逐渐被数控加工工艺替代。该文以航天产品中的一种流体介质密封环结构加工工艺为例,介绍密封环结构的数控加工工艺方法、数控程序和刀具、工艺参数的选择,以及常用的检测方法。

关键词:流体介质;密封环结构;数控;加工工艺

中图分类号:TH137TB42     文献标志码:A   文章编号:1008-0813201606-0074-03

NC Machining Process Method of Fluid Products Sealing Ring Structe

LIN Na1, LI Wei2, QIAO Ying1, WANG Kai-bin1

1.Hubei Sanjiang Space Hongfeng Co.,Ltd., Xiaogan 432000, China

2. Wuhan Sanjiang Space Yuanfang Technology Co.,Ltd., Wuhan 430035, China

AbstractWith the development of aerospace technology, the sealing performance of the fluid medium product requirments more stringent. The sealing surface maching of high precision, low qualified traditional manual processing,is gradually being replace CNC machining process. In this paper,aerospace products in a fluid medium sealing ring structure processing technology, for example, to introduce a selection process for CNC machining, NC program and tool, process parametes of sealing ring structure, as well as commonly used detection methods.

Key wordsfluid mediumsealing ring structeNCprocessing technology

 

 

 

 

 


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