电控全液压转向的新产品

焦文瑞

（镇江液压股份有限公司，江苏镇江212021）

摘要： 介绍了跨国公司和国内在电控全液压转向的新产品，对其进行了分析归类和详细介绍，指出当前电控全液压转向新产品适用范围、技术上优缺点和发展应用情况与前景。

关键词： 全液压转向；电液转向；自动转向；方向盘记忆功能

中图分类号：TH137.52文献标志码：A文章编号：1008-0813（2021）05-0001-05

New Products of Electrohydraulic Power Steering

JIAO Wen-rui

（Zhenjiang Hydraulics Co., Ltd., Zhenjiang212021, China）

Abstract: The paper introduces the new products of Electrohydraulic power steering of multinational companies and domestic companies, analyzes, classifies and introduces them in detail, and points out the application scope, technical advantages and disadvantages, development and application situation and Prospect of the current new products of Electrohydraulic power steering.

Key words: hydraulic power steering； electrohydraulic power steering； auto steering； steering wheel memory function

Bolund岛对风场流动影响的数值模拟研究

李德顺^1,2,3，董彦斌¹，傅学刚¹，何婷¹

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050；

2.甘肃省风力机工程技术研究中心，甘肃兰州730050；3.甘肃省流体机械及系统重点实验室，甘肃兰州730050）

摘要：为了更准确、真实地描述复杂地形风场流场特性，该文以Ris实验室开展的Bolund岛实验结果为依据，采用雷诺时均（RANS）与大涡模拟（LES）方法对Bolund岛进行数值模拟。研究表明:针对Bolund岛的数值模拟，在Line B特征线上5 m高度处模拟值比2m处更接近实验值，在岛前位置模拟结果比岛后位置模拟结果更准确；LES方法能够有效揭示Bolund岛地形周围流动的绕流特征和尾流区涡特征。

关键词： Bolund岛；湍流风场；大涡模拟；复杂地形

中图分类号：TH137;TH312文献标志码：A文章编号：1008-0813（2021）05-0006-04

Numerical Simulation of Bolund Island's Influence on Wind Flow

LI De-shun^1,2,3, DONG Yan-bin¹, FU Xue-gang¹, HE Ting¹

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

2. Gansu Wind Turbine Engineering Technology Research Center, Lanzhou730050, China;

3. Gansu Key Laboratory of Fluid Machinery and Systems, Lanzhou730050, China)

Abstract: In order to more accurately and realistically describe the characteristics of the wind field flow in complex terrain, this paper uses the Reynolds time average (RANS) and large eddy simulation (LES) methods to numerically simulate Bolund island based on the Bolund island experiment results carried out by the Ris laboratory. The study shows that the simulated value of Bolund island is closer to the experimental value at the height of 5 m on the Line B characteristic Line than at the height of 2 m. The simulation results of the pre-island position are more accurate than those of the post-island position. Moreover, LES method can effectively reveal the characteristics of flow around the topography of Bolund island and the vortex characteristics of wake area.

Key words: Bolund island; turbulent wind field; large eddy simulation; complex terrain

强湍流相干结构位置的改变对风力机叶根载荷的影响研究

李仁年^1,2,3，胡渊¹，李德顺^1,2,3，郭涛¹

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050；

2.甘肃省风力机工程技术研究中心，甘肃兰州730050；

3.甘肃省流体机械及系统重点实验室，甘肃兰州730050）

摘要：真实环境运行的风力机常受到强湍流相干结构对其的影响，而湍流相干结构的发生具有空间位置的不确定性和随机性，叶片作为捕获风能的主要部件其载荷直接关系到风力机运行的安全性，因此该文对湍流相干结构位置的改变对叶根载荷的影响展开研究。结果表明，湍流相干结构位置的改变对摆振力矩影响较小，位置的下降会使得挥舞力矩趋于稳定且波动集中；叶根挥舞方向的载荷约为摆振方向3.5倍；叶根载荷波动具有低频高能的特点，当湍流相干结构中心位于轮毂中心时叶根载荷最大。

关键词：强湍流相干结构；FAST；叶根载荷；作用位置

中图分类号：TH137;TH312文献标志码：A文章编号：1008-0813（2021）05-0010-06

Research on the Influence of the Change of Strong Turbulent Coherent

Structure Position on the Wind Turbine Blade Root Load

LI Ren-nian^1,2,3, HU Yuan¹, LI De-shun^1,2,3, GUO Tao¹

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

2. Gansu Wind Turbine Engineering Technology Research Center, Lanzhou 730050, China;

3. Gansu Key Laboratory of Fluid Machinery and Systems, Lanzhou730050, China)

Abstract: Wind turbines operating in a real environment are often affected by strong turbulent coherent structures, and the occurrence of turbulent coherent structures has uncertainty and randomness in spatial position. The blade as the main component of capturing wind energy, its load is directly related to the operation of wind turbine For safety, this paper studies the effect of the change of the position of the turbulent coherent structure on the blade root load. The results show that the change of the position of the turbulent coherent structure has little effect on the edgewise moment, and the decrease of the position will make the flapwise moment tend to be stable and the fluctuations concentration; The load in the flapwise direction of the blade root is about 3.5 times the direction of the edgewise; the blade root load fluctuation has the characteristics of low frequency and high energy, and the blade root load is the largest when the center of the turbulent coherent structure is located in the center of the hub.

Key words: strong turbulent coherent structure; FAST; bladed root load; action position

转速对海水泵内部空化影响的实验研究

万喆^1,2,张培珍^1,2,刘耀卓^1,2,刘世琦^1,2

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050； 

2.甘肃省液压气动工程技术研究中心，甘肃兰州730050）

摘要：海水泵在吸水过程中，泵内空化现象会直接影响海水泵吸水性能，使容积效率下降。该文针对海水泵内部空化现象，设计了单柱塞海水泵吸水过程可视化实验装置，通过高速摄像系统得到泵内空化流动的图像数据，讨论了在海水泵吸水过程泵内部流道的空化特征，研究了转速对海水泵内部空化现象的影响。结果表明，随着转速的增加，海水泵内空化流动速度加快，空化范围增大，气泡脱落周期变短。

关键词： 海水泵；空化；实验研究；转速

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0016-05

Experimental Study on the Effect of Rotational Speed on Cavitation in Seawater Pump

WAN Zhe^1,2, ZHANG Pei-zhen^1,2, LIU Yao-zhuo^1,2, LIU Shi-qi^1,2

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

2. Gansu Province Research Center of Hydraulics and Pneumatics Engineering Technology, Lanzhou730050, China）

Abstract: During the seawater pump's water absorption process, the cavitation phenomenon in the pump will directly affect the seawater pump's water absorption performance, and the volumetric efficiency will decrease. Aiming at the phenomenon of cavitation in the seawater pump, a visual experimental device for the suction process of the single plunger seawater pump was designed. Image data of cavitation flow in the pump was obtained through the visualization experiment. The effect of rotational speed on cavitation in the seawater pump. The results show that as the rotational speed increases, the cavitation flow rate in the seawater pump increases, the cavitation range increases, the bubble shedding period becomes shorter.

Key words: seawater pump; cavitation; experimental study; rotational speed

两种溢流口形状对水力旋流器性能影响

张力，吴杰，张旭，仝宇

（兰州理工大学机电工程学院，甘肃兰州730050）

摘要：为了研究圆柱形溢流口和圆台形溢流口对水力旋流器分离过程性能的影响，该文通过ANSYS软件分别求解其内部速度流场和压力场，分析流场的稳定性。研究结果表明：圆台形溢流口水力旋流器中心轴处的切向速度为零，往外延伸速度不断增大，但在旋流器内壁处，切向速度骤降为零；圆柱形溢流口水力旋流器的切向速度变化规律与之相似，但圆台形溢流口的切向速度变化规律更加平稳。圆台形溢流口水力旋流器整体压降要比圆柱形溢流口水力旋流器大13 kPa；进一步分析两种水力旋流器的分离效率和湍流强度，发现圆台形溢流口的分离效率和湍流强度比圆柱形溢流口略高，固-液两相流在旋流器内部停留的时间更长，分离效率更好。

关键词：水力旋流器；溢流口形状；速度流场；压力场；固液两相流

中图分类号：TH137,TV93文献标志码：A文章编号：1008-0813（2021）05-0020-05

The Effect of the Two Spill Shapes on the Hydrocyclone Performance

ZHANG Li, WU Jie, ZHANG Xu, TONG Yu

(Lanzhou University of Technology Institute of Electrical and Mechanical Engineering, Lanzhou730050, China)

Abstract: in order to study the effect of cylindrical overflow and circular spillway on the separation performance of hydraulic cyclone, the internal velocity flow field and pressure field were solved by ANSYS software, and the stability of flow field was analyzed. The results show that the tangential velocity is zero on the central axis of the circular spillway hydraulic cyclone, and the outward extension speed is increasing. At the inner wall of the cyclone, the tangential velocity drops to zero, and the tangential velocity of the cylindrical spillway hydraulic cyclone is similar. However, the shear velocity of circular spillway is more stable. The overall pressure drop of the hydrocyclone is 13 kPA greater than that of the hydrocyclone. The separation efficiency and turbulence intensity of the two hydrocyclone are further analyzed It is found that the separation efficiency and turbulence intensity of the round-shaped overflow port are higher than those of the cylindrical overflow port, and the solid-liquid two-phase flow stays longer in the hydrocyclone.

Key words: hydrocyclone; spill shape; speed flow field; pressure fields; solid liquid two-phase flow

基于归一化处理的自适应洗出算法

王硕¹，靳松²，张立杰²，韩全乐²

（1.江苏徐工工程机械研究院有限公司，江苏徐州221000 ；2.燕山大学河北省重型机械流体动力传输与控制实验室，河北秦皇岛066004）

摘要：传统的自适应洗出算法随着输入幅值的增大，其输出会变得不稳定，从而造成平台的异常抖动。为了克服这一缺陷，对自适应律提出一种归一化的修正方案。此方法使得自适应洗出算法中的输入幅值的大小不会对自适应增益造成影响，进而确保输出不会因为输入幅值过大而产生发散，提高动感模拟的真实性及稳定性；而且，改进算法没有引入额外的惩罚项，因此并未使算法变得更加复杂。经过特定的运动数据进行验证，结果显示此方法可以降低输出发散，减少平台的异常抖动，提高模拟驾驶的逼真效果。

关键词： 自适应洗出算法；归一化；动感模拟；并联六自由度平台

中图分类号：TP301.6;TP391.9文献标志码：A文章编号：1008-0813（2021）05-0025-05

Adaptive Washout Algorithm Based on Normalization

WANG Shuo¹, JIN Song², ZHANG Li-jie², HAN Quan-le²

(1. Jiangsu XCMG Construction Machine Research Institute Co., Ltd., Xuzhou221000, China；

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

Abstract:  With the increase of input amplitude, the output of the traditional adaptive washout algorithm appears unstable, resulting in the abnormal jitter of the platform. To overcome this defect, a normalized correction scheme is proposed for the adaptive law. This method makes the adaptive gain independent from the input amplitude, thus ensuring that the output does not diverge with the increase of the input amplitude to improve the authenticity and stability of the motion cueing; moreover, the improved algorithm does not introduce additional penalty terms, so it does not make the algorithm more complex. The improved washout algorithm is tested by using the start-up, uphill-going and braking data of the loader. The results show that this method can reduce the output divergence, reduce the abnormal shaking of the platform, and improve the realistic effect of simulated driving.

Key words: adaptive washout algorithm; normalization; motion cueing; parallel six degree of freedom platform

液压缸活塞内部冷却油液的动态特性研究

王香

（烟台汽车工程职业学院，山东烟台265500）

摘要：为避免液压缸活塞温度过高，引发密封圈失效，建立活塞冷却腔内的两相流模型，基于Fluent对油液的流场及传热特性进行数值模拟。选用VOF多相流计算模型和SST k-ω湍流模型，结合液压缸活塞行程特性，通过UDF方法定义入口参数，得出不同活塞位置下的油液液相比例分布、油液速度场和对流换热系数变化规律。研究结果表明：冷却油液的瞬时比例和速度有着密切的联系，提升油液速率是改善传热性能的重要手段；该多相流模型的可靠性高，通过近壁模型法与壁面函数法得出的平均对流换热系数没有明显的差异。

关键词： 流体；液压缸；活塞；多相流；有限元；湍流

中图分类号：TH137,TD433文献标志码：A文章编号：1008-0813（2021）05-0030-05

Study on the Dynamic Characteristics of Cooling Oil in the Hydraulic Cylinder Piston

WANG Xiang

(Yantai Automotive Engineering Career Academy， Yantai265500, China)

Abstract: In order to avoid the failure of sealing ring caused by the high temperature of hydraulic cylinder piston, the two-phase flow model in the cooling cavity is established, and the flow field and heat transfer characteristics in the cavity are simulated and analyzed based on Fluent. The VOF multiphase flow calculation model and SST k-ω turbulence model are selected, and the inlet parameters are defined by UDF method in combination with the piston stroke characteristics. The change rules of liquid phase proportion distribution, oil velocity field and convective heat transfer coefficient at different piston positions are obtained. The results show that the proportion of oil is closely related to the speed, and improving the oil speed is an important means to improve the heat transfer performance. The reliability of the multiphase flow model is high. There is no obvious difference between the average convective heat transfer coefficient obtained by the near wall model method and the wall function method.

Key words: fluid; hydraulic cylinder; piston; multiphase flow; finite element; turbulence

单发洗扫车扫刷机构速度特性分析

张少波，刘福新

(河北省煤矿机械工程技术研究中心，河北石家庄050000)

摘要：研究单发洗扫车扫刷马达的输出速度，得出扫刷机构速度特性。洗扫车的清扫效果受扫刷速度的影响非常大，扫刷转速必须能够根据不同的路况进行调整。首先介绍了现有的扫刷机构的结构特点和工作原理，通过对国内外现有的洗扫车的扫刷速度调节方式进行分析和对比，得出各种调速机理的性能特点，并结合单发洗扫车动力系统和液压系统的特点，建立扫刷马达转速的理论计算方法，探讨了单发洗扫车扫刷速度的一般规律，最后进行了实验验证，证明了理论分析的合理性和可行性，为环卫设备的开发和研究提供参考。

关键词： 扫刷马达；速度；单发；洗扫车

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0034-03

Speed Characteristics Analysis of Washing and Sweeping Machine with Single Engine

ZHANG Shao-bo, LIU Fu-xin

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

Abstract: Output speed of hydraulic motor on single engine cleaning sweeper is researched. Velocity characteristic of brush mechanism is obtained. As the cleaning effect of the machine is greatly affected by the speed of the brush, Sweep speed must be able to be adjusted according to different road conditions. Firstly, the structure characteristics and working principle of the existing brush mechanism are introduced. Based on the analysis and comparison of the current brush speed adjustment modes of cleaning and sweeping vehicles at home and abroad, the performance characteristics of various speed regulation mechanisms are obtained. the theoretical calculation method of the speed of the sweeping motor is established, Combined with the characteristics of the power system and the hydraulic system of the single Engine washing and sweeping machine, General law of the speed of single engine washing and sweeping machine is discussed, and finally carries out experimental verification, which proves the rationality and feasibility of theoretical analysis. This provide the reference for development and study of sanitation equipment.

Key words: brush motor; speed; single motor; sweeping and washing machine

油液污染颗粒粒径对滑阀滞卡的影响

徐瑞^1,2，范帅^1,2，袁清云^1,2

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050；

 2.甘肃省液压气动工程技术研究中心，甘肃兰州730050）

摘要：针对油液中固体颗粒造成的阀芯滞卡现象，该文以液压滑阀配合间隙为研究对象，探究不同粒径颗粒对阀芯运动滞卡的影响。搭建滑阀滞卡力沿程测量实验台，对阀芯所受滞卡力进行测量，并运用Fluent软件的欧拉模型对不同粒径颗粒在配合间隙中的体积分布进行仿真。结果表明：不同粒径的颗粒进入单边尺寸为0.6mm的间隙，阀芯所受滞卡力呈脉动变化；随着颗粒粒径的增大，阀芯所受滞卡力呈现增大趋势，当粒径达到间隙尺寸的70%~90%时，滞卡力迅速增大，最大滞卡力达到19N；固体颗粒在配合间隙中进口段分布较多，出口段分布较少，且颗粒粒径越大，在间隙中的体积分布越多。

关键词：液压滑阀；固体颗粒；粒径；滞卡现象

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0037-05

Research on the Influence of Solid Particles with Different Size on Valve Core Clamping

XU Rui^1,2， FAN Shuai^1,2， YUAN Qing-yun^1,2

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

2. Gansu Province Research Center of Hydraulics and Pneumatics Engineering Technology, Lanzhou730050, China）

Abstract: Aiming at the clamping phenomenon of valve core caused by solid particles in oil, this paper focuses on fitting clearance of sliding valve, in order to explore the influence on the movement of valve core with different particle size. The experimental test was built to measure clamping force along motion of sliding valve. The Euler model of Fluent was used to simulate volume distribution of different particles size in fitting clearance. The results shows that: the particles with different size enter clearance at unilateral size of 0.6 mm, and the clamping force caused by the particles presents pulsating changes. As particle size increases, the clamping force increases. When particle size reaches 70%-90% of clearance size, the clamping force increases rapidly, and the maximum clamping force reaches 19 N. In fitting clearance, solid particles are more distributed in inlet section and less distributed in outlet section, and the larger particle size, the more volume distribution in the clearance.

Key words: hydraulic sliding valve； solid particles； particle size； clamping phenomenon

液压缸活塞杆防磕碰性能的研究

宋西华

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要：液压缸活塞杆工作时裸露在外侧部分容易出现磕碰，导致油缸漏油无法正常工作。对出现磕碰活塞杆表面的有效硬化层深度进行了测试，硬度和有效硬化层深度均较低，不能满足现工况的使用要求。通过开展表面感应淬火工艺试验、防磕碰性能试验研究和小批量投入市场应用，得出的结论为：合理的硬度和有效硬化层深度可以抵抗飞溅物的冲击，达到防磕碰的目的。同时也为研究活塞杆的防磕碰能力，提供一定参考应用价值。

关键词： 液压缸；活塞杆；防磕碰；硬化层深度

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0041-03

Research on Anti-collision Performance of Hydraulic Cylinder Piston Rod

SONG Xi-hua

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

Abstract: When the hydraulic cylinder is working, the exposed part of piston rod is easy to collide, which leads to oil leakage of oil cylinder and can't work. The effective depth of hardened layer on the surface of piston rod is tested. The hardness and effective depth of hardened layer are both low, which can't meet the requirements of current working conditions. Through the surface induction quenching process test, anti-collision performance test research and small batch into the market application, the conclusion is that reasonable hardness and effective hardened layer depth can resist the impact of spatter and achieve the purpose of anti-collision. At the same time, it provides certain reference and application value for the study of anti-collision ability of piston rod.

Key words: hydraulic cylinder; piston rod; anti collision; depth of hardened layer

液压伺服系统谐振峰抑制技术研究

滕怀海，陈飞，耿树鲲，田福良，冯秀莲

（北京精密机电控制设备研究所，北京100076）

摘要：液压伺服作动器推动发动机喷管实现运载火箭的姿态控制。当液压伺服系统工作在某个频率点时，会与喷管负载产生谐振。当谐振峰值达到一定量级时，就会影响控制系统的稳定性，甚至会导致火箭箭体失稳，造成发射任务失败。为此需要在液压控制系统中采取措施，来抑制谐振的峰值。该文中结合型号研究工作中的实例，分析了液压伺服系统中抑制谐振峰常用的三种方法。

关键词：液压伺服；谐振峰；幅频特性；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0044-03

Research on Reducing Resonant Peak Technology of Hydraulic Servo System

TENG Huai-hai, CHEN Fei, GENG Shu-kun, TIAN Fu-liang, FENG Xiu-lian

(Beijing Research Institute of Precise Mechatronics and Controls, Beijing100076, China)

Abstract: The hydraulic servo actuator drives the engine nozzle to realize the attitude control of the launch vehicle. When the hydraulic servo system works at a certain frequency point, it will resonate with the nozzle load. Too high resonance peak will seriously affect the stability of the control system, and even lead to rocket instability and self destruction, launch mission failure. Therefore, it is necessary to take measures in the hydraulic control system to reduce the resonance peak. In this paper, three methods of reducing resonance peak in hydraulic servo system are analyzed with the example of model research.

Key words: hydraulic servo; resonance peak; amplitude frequency characteristics; research

一种伺服控制机构设计与调试技术研究与应用

齐国宁，侯晓军，贾丽

(中国航发西安动力控制科技有限公司，陕西西安700077)

摘要：伺服控制机构是液压泵和马达中关键部件之一，一般由伺服组件和驱动组件组成，用来控制斜盘倾角的大小和方向，改变柱塞组件在转子孔内的行程，从而改变泵的排量，实现泵的双向排量控制，控制马达轴输出转速的方向和大小。因此，伺服控制机构决定了联体泵马达的转速控制性能。通过对伺服控制机构设计与调试技术的研究，为提升伺服控制组件一次调试合格率，缩短单台组件及整机调试时间，打下了坚实的理论与实际技术基础。

关键词： 伺服控制组件；斜盘倾角；控制杠杆；旋转活门；反馈杆

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0047-05

A Kind of Servo Control Mechanism Design and Debugging Technology Research and Application

QI Guo-ning, HOU Xiao-jun, JIA Li

(AVIC Xi'an Aero-engine Controls Technology Co., Ltd., Xi'an700077， China)

Abstract: The servo control mechanism is one of the key components of the hydraulic pump and motor. It is generally composed of a servo component and a control component. It is used to control the size and direction of the angle of the swash plate, change the stroke of the plunger component in the rotating barrel and thereby change the displacement of the pump, and control bidirectional displacement of the pump, and control the direction and the output speed of the motor shaft. Therefore, the servo control mechanism determines the speed control performance of the combined pump motor. Through the research of servo control mechanism design and debugging technology, it has laid a solid theoretical and practical technical foundation in order to improve the qualification rate of the first-time debugging of servo control components, shorten the debugging time of single components and the whole machine.

Key words: servo control components; angle of swash plate; control lever; revolving valve; feedback lever

核电站人员空气闸门“零泄漏”密封系统应用研究

马晓荣，薛万勋

（中国核电工程有限公司，北京100840）

摘要： 该文研究了一种用于安全壳人员闸门空气人员闸门上快速密封检测、实时密封监测系统。研究了此系统的工作原理、部件构成。并计算了出系统压缩空气用量、密封效果等数据。实现了人在闸门一种避免从安全壳内向安全壳外“零泄漏”密封系统。

关键词： 人员空气闸门；密封；零泄漏率；O形密封圈

中图分类号：TB42；TH132文献标志码：A文章编号：1008-0813（2021）05-0051-03

Research of “Zero Leakage” Sealing System for Nuclear Power Plant Personnel Airlock

MA Xiao-rong, XUE Wan-xun

（China Nuclear Power Engineering Co., Ltd., Beijing100840, China）

Abstract: A rapid seal detection and real-time seal monitoring system for personnel airlock of containment is studied. The working principle and components of the system are studied. The compressed air consumption and sealing effect of the system are calculated. A “zero leakage” sealing system is realized to avoid the leakage from the inside to the outside of the containment.

Key words: personnel airlock; sealing; zero leakage; O-sealing

基于模糊PID自适应控制的液压伺服技术研究与应用浅析

刘维鸽

(中国重型机械研究院股份公司西安市重型机械高端液压技术与装备工程技术研究中心,陕西西安710032)

摘要：针对伺服液压系统存在参数的时变性、非线性以及外负载干扰等问题，采用了基于模糊PID自适应的控制策略，应用于正弦振动的阀控非对称缸液压伺服系统中，并对该原理进行了试验研究。通过仿真及测试分析，证明模糊PID自适应控制策略应用于液压伺服系统能克服传统PID控制的局限性，具有较强的鲁棒性，较好的动态特性以及较高的同步控制精度。

关键词：模糊PID；自适应控制；液压伺服系统；仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0054-03

Research and Application of Hydraulic Servo Technology Based on Fuzzy PID Adaptive Control

LIU Wei-ge

(China National Heavy Machinery Research Institute Co., Ltd., Xi'an Heavy Machinery High-end Hydraulic Technology and Equipment Engineering Technology Research Center， Xi'an710032， China）

Abstract: In view of the time-varying, non-linear and external load disturbance of the servo hydraulic system, the fuzzy PID adaptive control strategy is applied to the valve controlled asymmetric cylinder hydraulic servo system with sinusoidal vibration, and the principle is studied experimentally. Through simulation and test analysis, it is proved that the fuzzy PID adaptive control strategy can overcome the limitations of traditional PID control, has strong robustness, good dynamic characteristics and high synchronous control accuracy.

Key words: fuzzy PID; adaptive control; hydraulic servo system; simulation

平衡阀在液压启闭机液压系统中的设计研究

段惠玲，常庆玉

（太重集团榆次液压工业有限公司，山西榆次030600）

摘要：该文通过阐述平衡阀以及液压启闭机液压系统的特点，明确了流量控制型平衡阀适应于液压启闭机液压系统。通过详细阐述流量控制型平衡阀的特性及控制功能，研究了液压启闭机液压系统中平衡阀的设计理念及设计特点，提高了液压启闭机设备的运行平稳性及安全可靠性。

关键词：平衡阀；液压启闭机；液压系统；设计研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0057-04

Design and Research of Balance Valve for Hydraulic Hoist Hydraulic System

DUAN Hui-ling， CHANG Qing-yu

（Taiyuan Heavy Machinery Group Yuci Hydraulic Industry Co., Ltd.,Yuci030600, China）

Abstract: By expounding the characteristics of balance valve and hydraulic system of hydraulic hoist, this paper clarifies that the balance valve of flow control type adapts to hydraulic system of hydraulic hoist. By expounding the characteristics and control functions of the flow control balance valve, the design concept and characteristics of the balance valve in the hydraulic system of hydraulic hoist are studied. The running stability and safety reliability of the hydraulic hoist are improved.

Key words: balance valve; hydraulic hoist; hydraulic system; design and research

核电后备柴油发电机组燃油过滤器抗震研究

狄俊平¹， 王佳¹， 孙梦楠¹， 武永前¹， 孙跃¹， 邢燕²

（1.九江七所精密机电科技有限公司，江西九江332001;

2.九江职业技术学院，江西九江332001）

摘要：燃油过滤器的可靠运行是核电后备柴油发电机组正常工作的必要条件，柴油发电机组作为应急电源的核心设备，提供核电站在正常电源无法工作时的用电。对于燃油过滤器的抗震研究，采用ANSYS软件进行分析，按照RCCM的要求进行应力组合和评定，结果表明，燃油过滤器的结构满足规范要求。该分析为类似液压设备的抗震分析具有一定的意义。

关键词： 柴油发电机组；过滤器；抗震分析；应力计算

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

Research on Earthquake Resistance of Fuel Filter for Nuclear

Power Reserve Diesel Generator Set

DI Jun-ping¹， WANG Jia¹， SUN Meng-nan¹， WU Yong-qian¹， SUN Yue¹， XING Yan²

（1. Jiujiang 707 Institute of Precision Mechatronics SCI & TECH Co., Ltd., Jiujiang332001, China；

2. Jiujiang Vocational and Technical College, Jiujiang332001, China）

Abstract: The reliable operation of the fuel filter is a necessary condition for the normal operation of the nuclear power reserve diesel generator set, The diesel generator set serves as the core equipment of the emergency power supply and provides electricity for the nuclear power plant when the normal power supply cannot work. For the anti-seismic study of the fuel filter, ANSYS software was used for analysis, and the stress combination and evaluation were carried out according to the requirements of RCCM. The results showed that the structure of the fuel filter met the requirements of the specification. This analysis has certain significance for the seismic analysis of similar hydraulic equipment.

Key words: diesel generator set; filter; seismic analysis; stress calculation

采用增压AGC缸的矫直机液压伺服控制系统的开发与仿真分析

武宏伟

Development and Simulation Analysis on Hydraulic Servo Control

System of Leveler with Pressure Boost AGC Cylinder

WU Hong-wei

（太原重工股份有限公司技术中心，山西太原030024）

摘要：该文根据国内某大型钢厂所需高强度矫直机的技术参数，设计了该矫直机的主压下装置——增压AGC缸，并开发了增压AGC缸的液压伺服系统控制原理，利用AMESim仿真软件对该液压系统建模并仿真，仿真结果验证了液压系统原理的准确性，为优化液压伺服控制系统参数提供了一种方法。

关键词：矫直机；增压AGC缸；液压伺服控制系统；AMESim仿真

中图分类号：TH137文献标志码：B文章编号：1008-0813（2021）05-0065-04

液压破碎锤回油孔处结构对卡紧力影响研究

周广星

（火箭军士官学校，山东青州262500）

摘要：该文对液压破碎锤前腔内部的回油孔处结构径向力进行分析，由于活塞在腔体受到径向不平衡力，且活塞高速往复运动，致使活塞表面出现了拉毛的故障。该文通过对前腔流道的抽取，结合CFD可视化研究和原模型的基础上，验证了原模型存在较大的径向力，为优化流道结构，演化出另外两种流道模型，对其构建流道模型并进行数字化仿真，优化后的流道对活塞产生的径向力大大减小，为液压破碎锤回油孔处结构的优化指明了方向。

关键词： 液压破碎锤；卡紧力；优化；计算流体力学

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0068-03

Study on the Effect of Hydraulic Crushing Hammer on Clamping Force

ZHOU Guang-xing

 (Rocket Force Petty Officer College， Qingzhou262500, China)

Abstract: In this paper, the radial force of the structure at the oil return hole inside the front chamber of the hydraulic hammer is analyzed. Because the piston is subjected to radial unbalanced force in the cavity and the piston reciprocates at high speed, the surface of the piston is damaged. Based on the CFD visualization study and the original model, the large radial force of the original model was verified through the extraction of the front cavity runner. In order to optimize the flow channel structure, two other flow channel models were evolved, and the flow channel models were constructed and digitally simulated. The radial force generated by the optimized flow channel on the piston is greatly reduced, which indicates the direction for the optimization of the structure at the oil hole of hydraulic crushing hammer.

Key words: hydraulic crushing hammer; clamping force; optimization; computational fluid mechanics

空气弹簧生产工艺及关键控制点的研究

金红超¹， 何锋¹， 杨洪江²， 黄华¹

（1.贵州大学机械工程学院， 贵州贵阳550025; 2.贵州宏洋橡胶制品有限公司，贵州贵阳550600）

摘要：空气弹簧生产工艺关键点的控制在很大程度上影响空气弹簧的刚度特性及使用寿命。针对目前空气弹簧存在工艺关键点控制不够严格导致无法达到设计的刚度特性以及气囊存在缺陷等问题，分析了橡胶气囊的帘布裁剪工艺、成型工艺和硫化工艺，对影响空气弹簧刚度特性和橡胶气囊质量的关键工艺及参数进行了研究,提出了空气弹簧生产工艺关键点参数的控制方案，使空气弹簧达到设计要求的刚度特性和使用寿命。

关键词： 生产工艺；裁剪工艺；成型工艺；硫化工艺

中图分类号：TH138.9文献标志码：A文章编号：1008-0813（2021）05-0071-04

Study on the Production Process and Key Control Points of Air Spring

JIN Hong-chao¹, HE Feng¹, YANG Hong-jiang², HUANG Hua¹

(1. Schoolof Mechanical Engineering, Guizhou University, Guiyang550025, China;

2. GuizhouHongyang Rubber Products Co., Ltd., Guiyang550600, China)

Abstract: The control of key points in the production process greatly affects the stiffness characteristics and service life of air springs. Aiming at the problems that the current air springs have insufficient key process control points, which cannot achieve the stiffness characteristics of the design and the bellows have defects, the clothing process, molding process and vulcanization process of the bellows are analyzed. The key technology and parameters of the system have been studied, and the control scheme of the key parameters of the air spring production process has been proposed, so that the air spring can meet the stiffness characteristics and service life required by the design.

Key words: production process; clothing process; molding process; vulcanization process

基于AMESim的变频油冷机的设计与仿真分析

姚正宇¹， 朱小明^1，2， 杨丽红¹

（1.上海理工大学机械工程学院，上海200093；

2.上海豪高机电科技有限公司，上海201614）

摘要：针对因工作状态下液压油温度过高导致的液压油变质、使用寿命降低等问题，设计了一种制冷式变频油冷机，运用AMESim软件，选择合适的仿真元件模块化搭建模型，将各个模块进行整合，运行仿真并对仿真结果分析，根据得到的液压油温度变化曲线，结合实验，验证此制冷式变频油冷机的可行性。

关键词：制冷式；变频油冷机；AMESim；设计；仿真分析

中图分类号：TH137.58；TB657.5文献标志码：A文章编号：1008-0813（2021）05-0075-06

Design and Simulation analysis of Variable Frequency Oil Cooler Based on AMESim

YAO Zheng-yu¹, ZHU Xiao-ming^1，2, YANG Li-hong¹

(1. College of Mechanical Engineering; Shanghai University for Science and Technology, Shanghai200093, China;

2. Haogao Mechatronics Technology (Shanghai) Co., Ltd., Shanghai201614, China)

Abstract: In order to solve the problems such as deterioration of hydraulic oil and decrease of service life caused by too high temperature of hydraulic oil under working condition, a refrigeration type variable frequency oil cooler is designed. By using AMESim software, the appropriate simulation elements are selected to build a model. Each module is integrated, and the simulation results are analyzed. According to the obtained temperature curve of hydraulic oil, combined with experiments, experiments are carried out the feasibility of the variable frequency oil cooler is proved.

Key words: refrigeration; variable frequency oil cooler; AMESim; design; simulation analysis

液压预应力拉杆油缸典型故障原因探讨

吴远洪，杨莉华

（攀枝花钢钒有限公司轨梁厂，四川攀枝花617062；

四川机电职业技术学院，四川 攀枝花617000）

摘要：某企业的万能轧机功能是轧制高精度钢轨的重要设备。万能轧机属于开式轧机，由传动侧和操作侧两部分机架牌坊组成，更换辊系时两机架牌坊分离，更换完辊系后两机架牌坊在轧线上合拢并锁紧，两机架牌坊在轧线上合拢并锁紧是依靠四件预应力拉杆在四个油缸的牵引力作用下实现的。即就是两机架牌坊分离时四件油缸要释放牵引力，两机架牌坊合拢后四件油缸要加上牵引力。在实际的更换辊系中，四件油缸出现了一件油缸只能加上牵引力，不能实现释放牵引力的故障现象（四件油缸是分别控制的），严重影响了万能轧机的有效作业率。故此，该文着重探讨分析了预应力拉杆油缸典型故障原因，从而找到了原因并加以排除解决。

关键词： 万能轧机；预应力拉杆；油缸；探讨

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0081-02

Discussion on Typical Faults of Hydraulic Prestressed Pull Rod Cylinder

WU Yuan-hong, YANG Li-hua

(Panzhihua Steel and Vanadium Co., Ltd., Panzhihua617062, China;

Sichuan Institute of Mechanical and Electrical Technology, Panzhihua617000, China)

Abstract: The universal rolling mill is a kind of open mill comprised of two pieces of mill housing by drive side and operation side, which is the key equipment for precision rail production in an enterprise. The transmission and work side mill housing is separate from each other in roll change mode, and then get linked till replacement of roll is completed and fastened tightly by four prestressed pull rods under the traction force of four individual hydraulic cylinders, that is, these four cylinders retract when the two frame archway disengage and stretch out when they closed. However, there might be a failure that only single hydraulic cylinder is in good functioning while the others do not work, resulting a critical reduction of the effective operating rate of the universal mill. Therefore, this article mainly takes a research on the prestressed rod cylinder typical fault diagnosis so as to find and solve it within the shortest time.

Key words: universal rolling mill; prestressed pull rod; hydraulic cylinder; discussion

基于模糊Petri网的液压系统故障诊断研究

高立龙，刘新盛，李九林，于雨

Study on the Fault Diagnosis of Hydraulic System Based on Fuzzy Petri Net

GAO Li-long， LIU Xin-sheng， LI Jiu-lin， YU Yu

（陆军炮兵防空兵学院士官学校，辽宁沈阳110000）

摘要：某型多用工程车负载敏感液压系统采用负载敏感节能技术，具有系统复杂、作业环境恶劣、故障多发、故障模糊性强等特点，对其进行故障诊断、推理定位一直是维修保障的重点与难点。该文利用模糊Petri网并行推理机制以及与故障树的映射关系，建立了基于故障优先级的反向推理诊断。诊断结果表明：模糊Petri网适合于故障多发、系统复杂、模糊性强的液压系统故障推理诊断。

关键词：液压系统；故障诊断；模糊Petri网；研究

中图分类号：TH137;TH165文献标志码：B文章编号：1008-0813（2021）05-0083-04

新型互锁式并联高温电磁阀

吴瑞楠

(太重集团榆次液压工业有限公司，山西榆次030600)

摘要：该文介绍了一种带互锁功能的并联高温电磁换向阀，采用嵌入式电磁铁及具有衔铁功能的阀芯，利用互锁杠杆实现得电互锁，确保阀动作可靠性。该阀主要应用于铁路机车传动系统。

关键词： 高温；互锁；嵌入式电磁铁；衔铁阀芯；电磁阀

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0087-03

The Parallel High Temperature Solenoid Valve with Interlock Function

WU Rui-nan

(Taiyuan Heavy Machinery Group Yuci Hydraulic Industry Co., Ltd., Yuci030600, China)

Abstract: This paper introduces a kind of parallel high temperature solenoid valve with interlock function, which adopts embedded electromagnet and spool with armature function, and uses interlock lever to realize electric interlock, so as to ensure the reliability of valve action. The valve is mainly used in the transmission system of railway locomotive.

Key words: high temperature; interlock; embedded electromagnet; armature spool; solenoid valve 

大型挖掘机活塞杆窄间隙MAG焊工艺研究

韦金钰，曹星星

（徐州徐工液压件有限公司，江苏徐州221000)

摘要：该文首先对窄间隙MAG焊设备组成进行了介绍，并将其用于挖掘机液压缸活塞杆焊接；然后根据NB/T47014-2011标准对焊接接头拉伸强度、弯曲性能、冲击韧性、金相组织及硬度分布进行了表征，结果表明接头的焊态冶金质量符合国家标准要求；最后分析了窄间隙MAG 焊在深坡口（≥50 mm）焊接方面的经济优势，指出其焊接效率较传统MAG焊可提高50%以上，而焊材消耗可以减少40%以上。

关键词： 窄间隙MAG焊；活塞杆；力学性能；经济效益

中图分类号：TH137；TG455文献标志码：A文章编号：1008-0813（2021）05-0089-06

Research on Narrow-MAG Welding Technology of Piston Rod for Large Excavator

WEI Jin-yu, CAO Xing-xing

(Xuzhou Xugong Hydraulic Parts Co., Ltd., Xuzhou221000, China)

Abstract: This article introduces the composition of the narrow gap MAG welding equipment and uses it for the welding of the piston rod of the hydraulic cylinder of the excavator. According to the NB/T 47014-2011 standard, the tensile strength, bending performance, impact toughness, metallographic structure and hardness distribution of the welded joint were characterized. The economic advantages of narrow gap MAG welding in deep groove (≥50 mm) welding are analyzed, and its welding efficiency can be increased by more than 50% compared with traditional MAG welding, while the consumption of welding materials can be reduced by more than 40%.

Key words: narrow gap MAG welding; piston rod; mechanical properties; economic benefits

液压夹具在液力变矩器输入导座上的应用

何加亮，梅兆方

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要：输入导座作为液力变矩器的重要过渡元件，通过飞轮盘与发动机连接，带动变矩器转动，实现叉车传动系统的软连接。该文提出一种液压夹具、并配合加工中心，实现输入导座钻孔、攻丝。有效保证加工的精度和安全性，不但提升了输入导座螺纹孔的加工效率，而且提高了输入导座的加工质量。

关键词： 液压夹具；输入导座；螺纹孔；应用

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）05-0094-03

Application of Hydraulic Fixture on the Input Guide Seat of Hydraulic Torque Converter

HE Jia-liang, MEI Zhao-fang

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

Abstract: The input guide is an important transitional element of the torque converter, the flywheel plate is connected with the engine to drive the torque converter to rotate and realize the soft connection of the forklift transmission system. In this paper, a kind of hydraulic fixture is proposed, which can be used to drill and tap the input guide seat. The accuracy and safety of machining are effectively guaranteed, which not only improves the machining efficiency of the threaded hole of the input guide seat, but also improves the machining quality of the input guide seat.

Key words: hydraulic fixture; input guide seat; threaded hole; application