【作者】 冯虎；

【导师】 尚涛； 陶永生；

【作者基本信息】 吉林大学 ， 机械工程， 2012， 硕士

【摘要】 近年来，随着国家交通运输事业的快速发展，国内筑路机械行业取得了长足进步。但与进口品牌相比，产品在系统优化、智能化水平方面还存有较大差距，尤其对技术含量较高的路面摊铺设备而言，差距尤为明显，国内高档摊铺机市场基本被福格勒、ABG和戴纳派克三家垄断。本论文结合企业RP953摊铺机新产品开发，对摊铺机智能冷却系统展开技术研究，通过对风扇驱动液压系统的设计选型、建模分析，和电气控制系统的设计选型、程序设计，完成了摊铺机智能冷却系统的设计应用，产品经工业性考核基本达到预期目的，不仅提高了产品的技术含量和智能化水平，同时降低了整机噪音和功耗，给用户带来切实的好处。通过对比国内外摊铺机冷却驱动形式，并结合RP953摊铺机散热系统整体布置，提出了由齿轮泵马达和电控反比例溢流阀组成的智能冷却驱动系统液压方案，利用螺纹插装阀的结构特点，设计了结构紧凑、易于安装的集成阀组，根据风扇扭矩/转速曲线，通过理论计算合理匹配适宜的驱动马达、泵和控制压力范围，实现液压系统元件的选型，并通过AMESim与MATLAB/Simulink联合仿真和实际测试，验证了液压系统的可行性及正确性。对智能控制系统的控制原理进行研究，提出了智能冷却系统的控制框图，并围绕控制要求，对电气系统的关键硬件——控制器和温度传感器进行选型和设计，控制器选用了意大利TTControl公司的TTC60，并根据其控制器和温度传感器硬件要求设计了相关的外围电路。控制程序是智能冷却系统的关键，其核心是实现智能控制的程序流程和信号处理，通过对输入信号的比较、判断和计算，最终输出控制信号驱动电比例溢流阀控制风扇转速。在本项目中，提出了适于RP953摊铺机智能冷却系统的主程序流程和输出控制信号的具体算法，并利用CoDeSys2.3软件平台完成了控制程序的编写。通过实际装机验证了摊铺机风扇转速随温度信号变化而智能调节的目的，说明系统是可行的。经过较长时间的工业性考核试验，基本满足各种工况及高温环境温度下的高强度工作，验证了系统的可靠性。更多还原

【Abstract】 In recent years, with the rapid development of the nationaltransport undertakings, domestic road construction machineryindustry has made considerable progress. Compared to importedbrands, products, systems optimization, intelligent level there is alarge gap, the gap is particularly evident, especially on the roadpaving equipment, high technology content, the domestic market ofhigh-grade paver is basically monopolized by VOGELE, ABG,DYNAPAC.This paper combines the XCMG RP953asphalt paver newproduct development，conduct the technology research for coolingsystem. Through the fan-driven hydraulic system design selection,modeling analysis, and the electrical control system design selection,program design, has achieved the application of the paver intelligentcooling system design. Through Industrial assessment achieved thedesired objective, it is not only improve the technological content ofproducts and intelligent level, while has reduced the overall noiseand power consumption, and to bring tangible benefits to the user.By compare the form of cooling-driven and combined with thesystem whole layout, a smart cooling drive system of hydraulicprogram was proposed, it contains the gear pump motor and electricinverse relief valve. To use of the structural characteristics of thecartridge valves has designed a integrated valve block of easilyinstalled and compact. According to the fan torque/speed curves，by theoretical calculations reasonably appropriate to match the drivemotor, pump and control pressure range, achieve the selection of thehydraulic system components, and AMESim-MATLAB/Simulink co-simulation and actual test, to verify the feasibility and correctnessof the hydraulic system.Through research on the control principle of the intelligentcontrol system，Intelligent cooling system control block diagram wasproposed. According to the control requirements, selection anddesign the electrical system’s critical hardware-the controller andtemperature sensor. Finally, the controller has selected the Italian theTT Control company TTC60and in accordance with the controllerand temperature sensor has completed the hardware design ofperipheral circuits.The control program is the key to intelligent cooling system, itscore is the intelligent control of program flow and signal processing.By comparison, judgment, and calculation of the input signal, thefinal output control signal drive proportional relief valve control fanspeed. In this project, the main process and output control signalalgorithm suitable for XCMG RP953asphalt paver intelligent coolingsystem, and to use CoDeSys2.3software platform to complete thepreparation of the control program.The actual installed has verified that the fan speed varies withtemperature changes. Through a long-time industrial assessmenttest, it is basically meet the high-intensity work in a variety ofconditions and the high temperature environment, further confirmedthe reliability of the system.更多还原