【作者】 龙雷；

【导师】 刘银水；

【作者基本信息】 华中科技大学 ， 机械电子工程， 2009， 硕士

【摘要】 水压传动技术由于其环保、安全及节能等突出优点,在诸如食品、饮料、医药、电子、包装等对环境污染要求严格及在冶金、热轧、铸造等高温明火场合以及煤矿井下等易燃易爆环境具有广阔的应用前景。本文源于日元贷款甘肃人才培养项目的需求,研制开发了一套水压元件综合试验台。同时,利用该试验台的动力源,搭建了水压双缸同步控制试验系统并进行了试验研究。本文的主要研究工作如下:分析了水压综合试验台的工作原理和性能要求,确定了采用模块化的方法对系统进行设计,对其各部分结构进行了详细介绍和设计,完成了系统的搭建和试验。针对系统提出的控制要求,确定了主要的电气元器件的选型,并对各控制模块进行了详细的分析和设计。分析了可能产生的干扰并提出了硬件和软件抗干扰措施,并对试验台的测试精度进行了设计和评定。基于VB的开发环境对控制系统的软件进行设计编程,详细介绍了软件的通信模块、数据采集模块和双缸同步模块的设计。建立了比例流量阀及水压缸的模型并对其响应性能和双缸同步性能进行了仿真分析,仿真结果表明在空载的情况下采用PID控制可以达到很好的同步精度。对水压双缸同步控制系统进行了现场试验,并对实验结果进行了分析。实验结果表明采用自适应型PID控制可以很好的实现双缸的位置同步,控制精度达到技术要求。该试验台已经过专家验收,主要技术性能指标达到国际先进水平,为水压技术的研究提供有力的实验平台。更多还原

【Abstract】 Since the water hydraulic technology has many prominent advantages such as environmental protection, security and energy saving it has extensively application prospects in many fields which has a stringent requirement of anti-contamination, such as food industry, beverages, medicine, electron, packing and so on. Moreover, it was widely used in some inflammable and explosive environment and high-temperature occasions as well such as colliery, metallurgy, casting, etc. This subject comes from the Japanese yen loans supporting training project in Gansu province, in which a comprehensive hydraulic components test-rig need to be developed. At the same time, water hydraulic parallel cylinders synchronous control testing system has been established and tests were implemented by using the power source of the test-rig.The main researches of this article are as follows:The working principle and performance requirements of the water hydraulic comprehensive test-rig are analyzed. The methods of module were used to design the system and every parts of its structure are introduced, and then the system’s building and testedThe paper has determined the main electrical components, and designed each module to meet the control requests. At the same time, it has analyzed possible interferences and brought out anti-interferences measures on hardware and software, and assessed the test precision of the test-rig.The software of control system has been programmed by exploring environment based on the VB and the paper has introduced detailedly the design of communications module, data module and double cylinder Synchronous module.The model of proportional hydraulic flow valve and water hydraulic cylinder were established, whose response performance and parallel cylinders synchronous performance were simulated and analyzed. The results show that adopting PID control can achieve good synchronization accuracy in the case of no-load.The test-rig had been accepted by experts. The main technical specifications have reached the international advanced level. It can provide an experimental platform for the research of water hydraulic technology.更多还原