parker液压泵培训
PARKER培训--Tube_Fitting_BASIC_KNOWLEDGE
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HIGH TECH
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FluidConnectors
"BIO"
FluidConnectors
流体连接件的耐压安全系数
• • • • 额定工作压力 － Pn 静压试验压力 ＝2 X Pn 疲劳试验压力峰值 ＝1.33 X Pn 最低爆破压力 = 4 X Pn
200.000 cyc.
FluidConnectors
接头温度适应性
+250°C +100°C - 40°C PN = 100% - 35°C
碳钢
NBR
( 丁腈橡 胶 )
FluidConnectors
适用流量和流速
• 流量 1英制加仑/分钟 ＝4.546 公升/分钟 1美制加仑 ＝3.79公升/分钟 • 流速 －软管的最大推荐流速 吸油管路 －1.2 米/秒 压力管路－7.6 米/秒 回油管路－3 米/秒 • 阻力损失－同时缩短软管或接头的使用寿命
静压工况 • 静压试验压力 ＝ 1.5 X Pw • 最低爆破压力 = 2.5 X Pw
FluidConnectors
超压力使用会大大缩短使用寿命
GE12SREDA3C
最小爆破压力 ( 静 态) 最小脉动承受值 ( 动 态)
PN 630 2520 838
1Mio cyc.
Pmax 900
2250 900
英制管螺纹
英制锥螺纹
BSPP
(G,PF,K)
BSPT
(ZG,R,PT)
FluidConnectors
锥管螺纹连接
基面长度
基面直径
FluidConnectors
液压精品培训资料派克：基本的数字电液控制装置液压
辅助元件
包括油箱、滤油器、冷却器、 加热器、密封件等，用于保证
液压系统的正常工作。
液压传动优缺点分析
优点
传动平稳、无级调速、过载保护、布局灵活、易于实现自动 化等。
缺点
存在泄漏、温升、噪声等问题，对工作环境和维护要求较高 。
应用领域及发展趋势
应用领域
广泛应用于工程机械、冶金机械、农 业机械、航空航天、船舶等领域。
高动态响应
快速响应指令变化，提高系统 动态性能
高可靠性
采用高品质材料和制造工艺， 确保产品长期稳定运行
易于集成
提供丰富的接口和协议选项， 方便与其他系统集成
选型指南与参数设置建议
01 根据系统需求选择合适的控制装置型号和规 格
02 根据实际工况设置合理的控制参数，如PID参 数、速度限制等
03
注意与液压元件的匹配和兼容性
03
新材料和新技术的应用为数字电液控制装置的发展带来了新的
机遇和挑战。
下一步学习计划安排
01
深入学习数字电液控制装置的相关理论知识，包括控制算法 、系统优化等。
02
参与实际操作和项目实践，提升数字电液控制装置的应用能 力。
03
关注行业动态和技术发展趋势，不断拓展自己的知识面和技 能水平。
THANKS FOR WATCHING
液压原理
基于密闭液体中的压力传递原理 ，通过改变液体的压力来实现力 的传递、转换和控制。
液压系统组成要素
01
02
03
04
能源元件
将机械能转换为液体压力能的 装置，如液压泵。
执行元件
将液体压力能转换为机械能的 装置，如液压缸、液压马达。
控制元件
Parker Hannifin 熟练培训指南说明书
Introduction ...................................................................................................................................................... E2Training MaterialsTextbooks/Course ComponentsIndustrial Hydraulic Technology ............................................................................................................. E3Hydraulic Maintenance Technology ........................................................................................................ E3Fluid Power Basics................................................................................................................................ E4Hydraulic Component Sizing ................................................................................................................. E4Filtration T echnology .............................................................................................................................. E5Hydraulic Pumps & Controls ................................................................................................................. E5Reference BooksDesign Engineers Handbook ................................................................................................................. E6Design of Electrohydraulic Systems for Industrial Motion Control .......................................................... E6Handbook of Electrohydraulic FormulaeE6An Engineering Analysis of the Pulse Width Modulation ........................................................................ E7Lexicon III ............................................................................................................................................. E7Computer SoftwareVCCM Design Environment ................................................................................................................... E8Video TrainingIndustrial Hydraulic Technology ............................................................................................................. E9Trainer StandsPortable Hydraulic Trainer .................................................................................................................... E10Lab Manuals........................................................................................................................................ E10Training ProgramsIndustrial Hydraulic Technology (IHT) .......................................................................................................... E11Hydraulic Component Sizing (HCS) ............................................................................................................. E11Hydraulic Pumps & Controls (HPC) ............................................................................................................. E12Hydraulic Maintenance Technology (HMT) ................................................................................................... E12Introduction to Electrohydraulics (EHD)....................................................................................................... E13Electrohydraulic Feedback Systems (EFS)................................................................................................. E13Cartridge Valve Systems (CVS) .................................................................................................................. E14Mobile Hydraulic T echnology (MHT) ............................................................................................................ E14ContentsIntroductionW elcome to Parker’s Involvement Training ProgramThe Training Department at Parker Hannifin was established in the early 1970’s and is recognized today as the industry leader in the development and presentation of training materials and programs. The Department’s charter states that the primary focus of activity shall include all phases of technical training for hydraulic and pneumatic industries. The charter also states that this would be non-commercial and involve state-of-the-art methodology.The Parker approach is one of involvement training. In its full scope, involvement training is one of active participation. This participation results in excellent student retention as well as providing a comfortable way of learning.Parker Catalog 0200 details the Training Department’s current offerings. This catalog is presented in two parts: Training Materials and Training Programs.Training MaterialsThe training materials section contains the following mixed media components:T extbooks/Course ComponentsReference BooksComputer SoftwareVideo T apesTrainer StandsMiscellaneousParker offers seven textbook and course combinations designed for both industrial and educational applications. T opics range from Basic Fluid Power to the specifics of Hydraulic and Pneumatic T echnology.All materials needed for a completeclassroom curriculum are available.T extbooks can be purchasedseparately or in combination with anynumber of additional coursecomponents including workbooks,instructor guide, multiple choiceexams, answer book, coursecertificates and, where appropriate,acetate transparencies and relevantreference books.Parker currently has six referencebooks available. Led by the DesignEngineer’s Handbook, all of thebooks are valuable tools for anyDesign Reference Library, whetherfor individual use or as anaccompaniment to the courses.Additionally, course subject mattercan be further enhanced with relatedcomputer software, video tapes andtrainer stands.Parker’s computer-aided softwarerepresents a strong commitment toadvanced training technology. TheBasic Pneumatic Training CD,featuring animation and video, is theleading pneumatic software in theindustrial market place.The video tape library contains fourcomplete modules for self-pacedone-on-one or group learningactivities. Both hydraulic andpneumatic training programs areavailable.Parker’s portable and full sizehydraulic, pneumatic, and pick-n-place trainer stands provide studentswith valuable hands-on experience.All training stands feature industrialgrade components and provide “RealWorld” applications of principles andcircuitry.Training ProgramsIn addition to training materials,Parker offers an on-going scheduleof classroom educational programs.The current list of classes includesten 3-5 day programs. Each class isled by a Parker certified instructor(s).Students are provided all necessarymaterials to attain course certification.Classes are held in strategiclocations across North America.See Catalog 0200 for a complete listof scheduled class locations.Course fees cover all class roomexpenses. Meals, transportationand lodging are not included.However, Parker will be glad to assistyou with lodging arrangements.Education and training arecontinuous processes. Parker’sInvolvement Training Program hasdoubled its offerings in the last threeyears alone. For the latestinformation on Training Materials orPrograms, please contact:Parker Hannifin CorporationTraining Department6035 Parkland Blvd.Cleveland, OH 44124-4141T el:(216) 896-2577Fax:(216) 514-6738E-mail:*****************.comThe following section gives abrief overview of the trainingmaterials and classes with ahydraulic or electrohydraulicemphasis.INDUSTRIAL HYDRAULIC TECHNOLOGY Industrial Hydraulic Technology2nd Edition, Bulletin 0232-B1ISBN 1-55769-025-1The Industrial Hydraulic Technology textbook is designed to introduce a student to hydraulics as it relates to industrial machinery. The 330-page text is organized into fifteen chapters which include:The Physical World of a MachineHydraulic Transmission of Force and Energy Petroleum Base Hydraulic Fluid Fire Resistant Hydraulic FluidOperation at the Suction Side of a Pump Hydraulic ActuatorsControl of Hydraulic EnergyCheck Valves, Accumulators and Cylinders Flow Control ValvesDirectional Control Valves Pressure Control ValvesPilot Operated Pressure Control Valves Hydraulic Pumps Hydraulic MotorsReservoirs, Coolers and Filters• Circuit illustrations are in six-color to aid the student in visualizing what is happening in a circuit.• Each chapter incorporates an exercise reviewing the lesson’s main points.HYDRAULIC MAINTENANCE TECHNOLOGYHydraulic Maintenance TechnologyBulletin 0240-B1ISBN 1-55769-019-7The Hydraulic Maintenance Technology textbook provides detailed maintenance and troubleshooting information for the user of industrial hydraulicequipment. The 148-page text contains ten chapters which include:Hydraulic Maintenance Introduction Hydraulic Graphic Symbology Power Unit Maintenance Pump MaintenancePressure Control Valve Maintenance Directional Control Valve MaintenanceFlow Control Valve and Check Valve Maintenance Cylinders, Motors and Accumulator Maintenance Leakage Elimination in Hydraulic Systems Fluids and Filter Maintenance• Contains troubleshooting charts with lists of common problems, causes and possible remedies.• This text is also a valuable reference for designers of industrial hydraulic equipmentHYDRAULIC COMPONENT SIZINGHydraulic Component SizingBulletin 0243-B1ISBN 1-55769-036-1The Hydraulic Component Sizing textbook provides an in-depth practical study of pumps, flow valves, pressure valves, directional valves, hydraulic motors, cylinders and accumulators and how total system performance is related to individual component characteristics. Filtration and overall heat generation is covered. The 244-page text is organized into eleven chapters which include:The Hydraulic System Cylinders and Motor The Electric MotorSources of Power - Pumps and Accumulators Check Valves and Directional Control Valves Unloading and Pressure Reducing Valves Reliefs, Counter Balances and Brake Valves Flow ControlsConditioning Systems - Reservoirs and Heat Exchangers Conditioning (Filters)Fluid Conductors• The text also includes a section of 17 assignments in the back of the book.FLUID POWER BASICSFluid Power BasicsBulletin 0239-B1ISBN 1-55769-029-4The Fluid Power Basics textbook is designed tointroduce students to hydraulics and pneumatics as it relates to industrial machinery. The 174-page text is organized into fifteen chapters which include:The Physical World of a Machine Force Transmission Through a FluidEnergy Transmission Using a Hydraulic System Control of Hydraulic EnergyEnergy Transmission Using a Pneumatic System Control of Pneumatic EnergyHydraulic Pumps and Compressors Check Valves, Cylinders and Motors Flow Control ValvesDirectional Control ValvesSimple Pressure Control ValvesPilot Operated Pressure Control Valves Hydraulic Fluid Conditioning Air PreparationFluid Conductors and Connectors• Each chapter incorporates an exercise reviewing the lesson’s main points.FILTRATION TECHNOLOGY Filtration TechnologyBulletin 0247-B1 (Softcover)ISBN 1-55769-037-5Bulletin 0250-B1 (Hardcover, Not Shown)ISBN 1-55769-033-2Filtration Technology is a must as a fundamental introduction to industrial filtration. The text covers topics such as fluids, contaminants, media selection and more. It is helpful to all personnel concerned with OSHA, safety and quality issues. This over 250-page text is organized into fourteen chapters which include:Introduction to Industrial Filtration Technology Fluids and Contaminants Contamination Dynamics Fluid and Filter AnalysisMultipass Filter and Media Selection Lubricant and Hydraulic FluidSpecifying Hydraulic and Lubricating Fluid Filters Water Absorption in Hydraulic and Lubricating Oils Filter and Media Selection for Single-pass Systems Fuel Filter/Water Separators Process Filtration SystemsCompressed Air and Gas Filtration Coolant FiltrationInstallation, Operation and MaintenanceHYDRAULIC PUMPS & CONTROLSHydraulic Pumps & ControlsBulletin 0238-B1ISBN 1-55769-031-6Hydraulic Pumps and Controls is a comprehensive text covering relevant pump topics from basic pump construction and operation to multiple controls,horsepower control and electronic pump controls. The book also contains sections on filtration andtroubleshooting. This 185-page, multi-colored text is organized into nine chapters which include:Pressure CompensationLoad Sensing Theory of Operation Input Power and Inlet Conditions Electrohydraulic Pump Control TroubleshootingRemote CompensationHorsepower (Torque) Limiting Control Hydraulic Filtration Energy ConservationDesign Engineers HandbookBulletin 0224-B1ISBN 1-55769-018-9Design of Electrohydraulic Systems for Industrial Motion Control, 2nd EditionBulletin 0246-B1ISBN 1-55769-032-4A hardcover 400-page text that covers all technical areas relative to motion control utilizing electrohydraulics.Technicians and designers, as well as mechanical,electrical and control engineers will find the text to be a useful tool. The text is also valuable for professors and students of motion control technology, because it provides the most current information available on this technology from a recognized expert.To satisfy the demand for a simple and practical treatment of hydraulics and pneumatics, including components and system connectors, Parker Hannifin Corporation has published a one volume, 320-page text entitled Design Engineers Handbook . The information contained in this text is organized to assist themachine designer and manufacturer, as well as service and maintenance personnel. It should prove to be equally valuable to the college and vocational school student preparing to enter any of these fields.• Each section includes design data, reference material, charts and diagrams.Handbook of Electrohydraulic Formulae, 2nd EditionBulletin 0242-B1ISBN 1-55769-034-0This handbook, written for technicians, engineers and designers, contains 25 chapters of commonly used formulas for the design of electrohydraulic motion control systems. All of the necessary information is centralized, making the design of electrohydraulic motion control systems easier. There is no other text available that offers this accessibility or breadth and depth of information.Lexicon IIIBulletin 0245An Engineering Analysis of the Pulse Width ModulationBulletin 0244This research report contains over 100 pages of detailed engineering information and data regarding the design and evaluation of the pulse width modulation (PWM)method of controlling hydraulic pump outlet pressure.PWM offers a very efficient way for making regulated pressure power units using fixed displacement pumps instead of the more expensive, conventional pressure compensated pumps.The report contains scores of graphical responses,representing hundreds of hours of labs and dataanalysis time. Concise Conclusions sections help the reader to quickly summarize the results and apply them immediately. A complete section is dedicated to Design Methodology so that users can learn the details needed to properly design and construct the power units.Also included is a background on motion control and constant pressure. In addition, authors discuss equipment and principles of operation as well as the method of investigation used.An Engineering Analysis of the Pulse Width Modulation is a must for anyone who uses, specifies, designs or builds hydraulic power units!The Lexicon III is a detailed bulletin of electrohydraulic terms and analogies. The book is laid out into two easy-to-use sections – a glossary of terms and a section on understanding electrohydraulic analogies. Many of the areas are represented by graphs and diagrams to further identify in detail the terms and analogies of electrohydraulics.The author conveniently includes a chart of the SI prefixes, the Handy Conversions Factors T able and a listing of the Greek Letters. This bulletin is a must-have for engineers, students and anyone interested in electrohydraulics.Training MaterialsComputer SoftwareVCCM Design EnvironmentBulletin 0298-P1The manual design of proportional and servo controlled systems requires many hours of computational work as well as much trial and error. Now, with the easy-to-use VCCM software, your can design state-of-the-art motion control systems at the cutting edge of technology!Simply tell VCCM the requirements of your job, and it will tell you the components you need for your design.All data passes through several menu driven screens which may carry explanations that are written in electrohydraulic engineering terms. VCCM does the number crunching for you, leaving you free toconcentrate on the more subjective and critical aspects of the design application. Anyone who has to size and select servo and/or proportional valves will benefit from the VCCM program.Requirements:• 386 CPU with DOS• 2 MB of Space on Hard Drive • SVGA monitor • Windows optionalIndustrial Hydraulic TechnologyBulletin 0299-T1The Industrial Hydraulic Technology course material is available utilizing an audiovisual tape training method.With all the training information stored on cassettetapes, the training sessions can be repeated as often as necessary, allowing each student to acquire the technical knowledge at his or her own pace.The various tapes focus on enabling the user to interpret and read schematics, obtain a working knowledge of components that make up hydraulic systems andadvance to trouble shooting techniques. (Refer to page 4 to see specific chapters covered).• Video tapes are available in Beta, VHS or PAL.• Individual chapters are also available.Includes:14 Video T apes 1 T extbook1 Instructor’s GuideTraining MaterialsVideo TrainingBulletin 0249EHD SupplementBulletin 0231Also available in Spanish!Bulletin 0229-B9 In order to aid the student in understanding hydrauliccomponents and systems operation, Parker hasdeveloped this comprehensive lab manual for the ModelHTV-00 Portable Hydraulic Trainer Stand. This manualcontains circuit problems and demonstrations designedfor use with the Parker trainer. These exercises areintended to supplement text material covered in theclassroom. References are made in this manual toParker textbook, Industrial Hydraulic T echnology (pageL3).Contains exercises using theElectrohydraulic Option Kit(P/N 875279) on the ParkerPortable Hydraulic TrainerStand.Portable Hydraulic TrainerBased on Parker’s long term experience indesigning, manufacturing and servicing fluidpowercomponents worldwide, the Portable HydraulicTrainer is designed to be a tool for learning hydraulictechnology principles and circuitry. It has beenengineered for ruggedness, portability and ease ofoperation. The unit is completely self-containedand operates on standard 115 Volt AC single phaseoutlet electrical power.The components on the trainer are all industrialgrade components used in industry every day. This“real world” approach allows the student to learnwhat those components look like as well as howthey operate.All necessary connections are made with hosesand quick disconnects. No tools are required toarrange circuits. Simply plug in the componentsneeded to arrange a circuit. In addition, all thehoses are stored are stored in a rack to avoidmisplacing “loose” components.For detailed information, request Bulletin 0203Training MaterialsTrainer Stands and Lab ManualsAlso available with the following options:• Electrohydraulic option provides an introduction toboth open loop and closed loop electrohydraulicsystems.• Pneumatic option transforms the hydraulic trainerinto a complete fluidpower training stand.。
液压培训计划
液压培训计划一、培训目标本次液压培训旨在使学员掌握液压原理、液压系统结构和工作原理，掌握液压传动元件的基本原理和性能，掌握液压系统的基本维护和故障排除方法。
二、培训内容1. 液压原理液压的起源和发展历史液压的基本原理液压传动的优点和应用领域2. 液压系统结构和工作原理液压系统的组成结构液压系统的工作原理液压系统的分类和特点3. 液压传动元件的基本原理和性能液压泵的工作原理和分类液压阀的工作原理和分类液压缸的工作原理和分类液压管路的特点和应用4. 液压系统的基本维护和故障排除方法液压系统的日常维护保养液压系统的故障诊断和排除液压系统的安全操作规范三、培训方式1. 理论课程通过专业讲师进行讲解，结合案例分析液压系统的应用和故障处理方法，使学员能够深入理解液压原理和系统结构。
2. 实践操作学员将参与液压系统的组装、维护和故障处理实践操作，通过亲自动手操作进行实际练习，加深对液压系统工作原理的理解。
3. 网络课程通过网络教学平台进行在线学习、讲解和互动交流，结合多媒体教学资料，使学员能够随时随地进行学习。
四、培训时间安排本次液压培训计划安排为期5天，其中理论学习占3天，实践操作占2天。
每天培训时间为8小时，早上8:00-12:00，下午1:30-5:30。
五、培训人员1. 液压系统操作维护人员2. 工程师、技术人员3. 其他对液压知识感兴趣的人员六、培训评估1. 知识测试在培训结束后，对学员进行液压系统相关知识的测评，检验学员对液压原理和系统结构的掌握情况。
2. 实际操作考核对学员在实践操作环节中的表现进行考核，检验其对液压系统的维护和故障排除能力。
3. 满意度调查对学员进行培训满意度调查，了解培训内容和方式的可行性和实用性，以便进行后续的改进和完善。
七、培训资料在培训结束后，学员将获得一份详细的液压培训资料，包括液压原理、系统结构和工作原理的讲义，实践操作的步骤和要点，以及液压系统维护和故障排除方法的手册。
派克液压控制元件培训资料(中文)
先导控制压力
弹簧力
作用在锥阀芯上的压力
17
R4V06/10 先导锥阀推动销的功能
先导控制压力 pp 先导流量 减压后的先导压力 prp
Fspring
p = pp - prp prp x As + p x Apu = Fsp pp = 先导压力; prp = 降低后压力; Apu = 推动销; As = 阀座; Fsp = 弹簧
Hydraulic Control components
液压控制元件
2008/03/19
液压系统
液压系统 Hydraulic System
采用液压技术实现能量及运动转换、传递和控制的系统 液压系统组成
液压系统
含一个或多个液 压回路
管道及辅件
连接成液压回路
液压动力站
机械能或电能转换为 液压能 液压泵、油箱、控制 油液状态的辅件等
♦ 使执行元件的回油路造成一定背压的压力控制阀。
11
直动式压力阀
Direct Operated Pressure Valve
滑阀型
图形符号
座阀型
12
直动式压力阀
Direct Operated Pressure Valve
直动式压力阀工作原理
液压力与弹簧力平衡
pA F k ( x x ) k ( x x ) p A
R4R 系列减压阀
X1
Y1 (外泄口)
Type R4R
Nom. Size 03 (NG 10) 06 (NG 25) 10 (NG 32)
max. Flow 90 l/min 300 l/min 600 l/min
max. Pressure 350 bar 350 bar 350 bar
Parker液压系统培训
液压力与弹簧力平衡 静态超压较大 规格不可能大
2005/2/17
pA F k ( x x) k ( x x) p A kx p A
9
Hydraulics
压力控制回路 先导式压力阀
压力控制回路 — 压力控制阀工作原理
先导式压力阀
图形符号 详细符号
简化符号
执行机构
将液压能转换为机 械能 液压缸- 直线运动 液压马达- 旋转运动
2005/2/17
8
Hydraulics
压力控制回路 直动式压力阀
液压回路 Hydraulic Circuit
系统中能满足特定功能的某一部分或全部。例如: 压力控制 回路、流量控制回路、同步回路等。
压力控制回路 — 压力控制阀工作原理 直动式压力阀
Hydraulics
液压技术基础知识
6. 液体粘度
本质：实际流体的内摩擦力
动力粘度：
按牛顿液体内摩擦定律：
dv dy
μ – 动力粘度系数 dv – 相邻油膜层的间隔距离 dy – 相邻油膜层间的相对滑动速度
运动粘度：
单位：St (cm2/s), cSt (mm2/s),
液压力平衡，弹簧力可忽略 静态超压较小，工作稳定 规格大
2005/2/17
pP A pC A F pC A pP pC
10
Hydraulics
压力控制回路
压力控制回路
2005/2/17
11
Hydraulics
压力控制回路
负载平衡回路
平衡阀调定压力pV应高于最大负载引起 的负载压力pL 假定平衡阀的面积比为 4:1
【精品液压培训资料】派克：液压系统基础知识
1. An input force of 10 lbs here
2. will balance 100 lbs here
100 lbs
3. if this arm is 10 times as long as
4. this arm
B. SIMPLE MECHANICAL LEVER Figure 1-2 (B) Similarity between simple press and mechanical lever
5 . In a n o th e r p o sitio n , o il is d ire cte d to th e ro d e n d o f th e cylin d e r
6 . T h e p isto n ro d re tra cts
7 . E xh a u st o il fro m th e ca p e n d is d ire cte d to ta n k
1 0 lb s 1 s q in
1 0 0 lb s
=
1 0 s q in
F ig u re 1 -2 (A ) P a s c a l抯 p rin c ip le a p p lie d to th e h y d ra u lic p re s s
C O P Y R IG H T C (2 0 0 1 ) E A T O N C O R P O R A T IO N
1 in
the larger piston only one inch
(10 in sq x 1 in = 10 cu in)
4. The energy transfer here is also 100 in lbs (1 in x 100 lbs = 100 in lbs)
液压泵检修培训计划方案
液压泵检修培训计划方案一、培训目的随着现代工业技术的不断发展，液压技术在各行各业中得到了广泛的应用，而液压泵作为液压系统中的核心部件，其正常运行对于液压系统的正常运行至关重要。
因此，开展液压泵检修培训对于提高液压技术人员的技术水平、提高设备的可靠性、延长设备的使用寿命具有重要意义。
本培训计划的目的是通过系统的培训，将参训人员的专业技能进行提升，使其能够独立进行液压泵的检修工作。
同时，通过培训，可以加强人员之间的交流与沟通，提高工作效率，为企业的生产经营工作提供技术支持。
二、培训对象1. 企业内部液压系统维护人员；2. 液压设备制造商的售后服务人员；3. 液压设备相关从业人员。
三、培训内容1. 液压泵的工作原理及结构分析；2. 液压泵的常见故障及检修方法；3. 液压泵的使用与维护；4. 液压泵的安全操作规程与事故应急处理；5. 液压系统的故障诊断与维修技术；6. 液压泵的保养与维护。
四、培训方式1. 理论培训：通过课堂教学的形式，结合多媒体教学，系统地讲解液压泵的工作原理、结构分析、常见故障、检修方法等知识；2. 实践培训：参训人员将有机会进入实际工作场所进行操作练习，学习如何对液压泵进行正确的检修与维护。
五、培训计划1. 理论培训阶段（2天）：第一天：液压泵的工作原理及结构分析；第二天：液压泵的常见故障及检修方法。
2. 实践培训阶段（3天）：第一天：液压泵的使用与维护；第二天：液压泵的安全操作规程与事故应急处理；第三天：液压泵的保养与维护。
培训结束后，将进行学员考核，考核合格者颁发培训结业证书。
六、培训场地和设备培训场地应根据实际培训人数确定，确保每位参训人员都有充足的操作空间。
培训设备应保证液压泵检修培训所需的相关设备设施齐全，并保证设备的正常运行。
七、培训教材1. 液压泵工作原理及结构分析；2. 液压泵的常见故障及检修方法；3. 液压泵的使用与维护；4. 液压泵的安全操作规程与事故应急处理；5. 液压系统的故障诊断与维修技术；6. 液压泵的保养与维护。
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= 11.6 HP
Hydraulic Pump/Motor Division
Piston Pump Controls
Problem
10 GPM Pressure Compensated Pump Pressure Compensator set at 3000 PSI Relief Valve Set at 3200 PSI Flow Control Set for 5 GPM Load Pressure is 2000 PSI What is the horsepower being consumed while the cylinder is extending ? How much horsepower is being wasted ? (HP = GPM * PSI / 1714 assume 100 % efficiency)
–Fluid is forced out of pump at the pump outlet –A Partial vacuum is created at the pump inlet and atmospheric pressure forces fluid into pump from the reservoir
o
Electronic Displacement Control
Will adjust output flow in proportion to an electronic command .
Hydraulic Pump/Motor Division
Pressure Compensator
Pressure compensated Pump will provide full pump flow at pressures below the compensator setting. Once the pump flow is restricted , pressure will build up to the setting of the compensator and then the pump will destroke to the level needed to maintain the compensator pressure setting
Bias Spring
Swash Plate
Shaft
Barrel Piston
Hydraulic Pump/Motor Division
Piston Pump Controls
Piston Pump Controls are integral valves that port flow to a stroking piston in response to a pressure or electronic signal , which results in a variable hydraulic pump achieving a desired displacement.
GPM
Hydraulic Pump/Motor Division
Pressure Compensator
Compensator Spring Compensator Adjustment
Bias Spring
Pump Pressure is below setting of control Pump is at Full Stroke
Hydraulic Pump Basics
Hydraulic Pump Purpose :
Provide the Flow needed to transmit power from a prime mover to a hydraulic actuator.
Hydraulic Pump/Motor Division
POSITIVE DISPLACEMENT PUMPS
• Fixed Displacement
– Good for constant flow and pressure applications – Typically less expensive than variable pump systems
o
Load Sense Control
Load sense control will adjust output flow to maintain a constant pressure drop across an orifice
o
Torque Limiter Control
Will adjust flow to limit the input torque demand of the pump
• Variable Displacement
– Good for variable flow and / or pressure applications – Typically more energy efficient because flow and pressure ( Horsepower) more closely matches load.
Hydraulic Pump/Motor Division
Hydraulic Piston Pump Basics
Hydraulic Pump/Motor Division
Hydraulic Pump Basics
Hydraulic Flow is developed as the pump rotating group is driven by a prime mover
Hydraulic Pump/Motor Division
Hydraulic Pump Basics
POSITIVE DISPLACEMENT PUMPS • Displacement
Cubic Inches (cc) per Revolution of drive shaft
• Flow
Displacement X Shaft Speed X Volumetric Efficiency
Hydraulic Pump/Motor Division
Pressure Compensator
By the way, do you Pressure compensated need this relief valve ? Pump will provide full pump flow at pressures below the compensator setting. Once the pump flow is restricted , pressure will build up to the setting of the compensator and then the pump will destroke to the level needed to maintain the compensator pressure setting
Hydraulic Pump/Motor Division
Piston Pump Controls
Common Variable Piston Pump Controls
o
Pressure Compensator
The pressure compensator control will limit pump outlet pressure to a predetermined level and adjust pump outlet flow to the level needed to maintain the set pressure
Hydraulic Pump/Motor Division
Hydraulic Pump Basics
Variable Displacement Piston Pump
Outlet Flow can be varied by changing the shaft drive speed, or by changing the swash plate angle
Hydraulic Pump/Motor Division
Piston Pump Controls
Problem
10 GPM Fixed Pump Relief Valve Set at 3000 PSI Flow Control Set for 5 GPM Load Pressure is 2000 PSI What is the horsepower being consumed while the cylinder is extending ? How much horsepower is being wasted ?
Hydraulic Pump/Motor Division
Hydraulic Pump Basics
POSITIVE DISPLACEMENT PUMPS
• Fixed Displacement
– Flow varies only with shaft speed – Typical types Gear Pumps and Vane Pumps
(HP = GPM * PSI / 1714 assume 100 % efficiency)
Hydraulic Pump/Motor Division
Piston Pump Controls
Problem
10 GPM Fixed Pump Relief Valve Set at 3000 PSI Flow Control Set for 5 GPM Load Pressure is 2000 PSI What is the horsepower being consumed while the cylinder is extending ? 10 GPM * 3000 PSI / 1714 = 17.5 HP How much horsepower is being wasted ? 5 GPM * 3000 PSI / 1714 = 8.7 5 GPM * 1000 PSI / 1714 = 2.9 Total (assume 100 % efficiency) HP HP