液压缸型式试验系统设计及操控性能研究

发布时间：2018-02-22 12:45

本文关键词： 液压缸试验关键技术内泄漏负载效率起动压力　出处：《沈阳工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着科学技术的发展,对液压缸的性能要求也越来越高,伴随着对液压缸试验的要求也越来越高。我国液压缸试验和测控技术测量精度不高、自动化程度不高、智能化程度不高,液压缸试验和测控技术的落后严重制约我国液压缸的生产质量。因此,我们急需设计更完善的液压缸试验,提高液压缸的生产技术水平和液压缸的性能。介绍了液压缸型式试验原理及系统组成,对其重要的测控特性进行了研究分析。综述了液压缸的发展现状、液压缸试验的研究意义以及国家标准规定的试验内容等。对液压缸型式试验的关键技术内泄漏测量,负载效率的测量,起动压力测量几项关键技术进行设计,并对其进行应用与分析。该试验能实现对液压缸出厂性能的检测,多种试验可以同步进行,可以实现远程的无级调压,复合调速,比例加载,系统试验全自动智能控制。针对液压缸试验中的内泄漏测量、负载效率测量、起动压力测量关键技术问题重点研究,结合实际情况,设计出了高精度的检测系统。对内泄漏的测量采用温度标定法,可以在线实时测量并且检测精度非常高;对负载效率的测量,采用比例溢流阀调压,激光测量仪监控活塞杆位移状态,可在线精准测量并绘制图表;对于起动压力的测量,采用节流阀和小量程压力表,在线精准测量起动压力,试验结果精准可靠。试验结果表明该试验技术检测稳定可靠,准确高效,大大提高了生产效率,为液压缸生产技术水平的提高提供了可靠的依据,对液压缸的生产与检测具有重大的指导意义。
[Abstract]:With the development of science and technology, the requirement of hydraulic cylinder performance is higher and higher. The degree of intelligence is not high, and the backwardness of the hydraulic cylinder test and measurement and control technology seriously restricts the production quality of the hydraulic cylinder in our country. Therefore, we urgently need to design more perfect hydraulic cylinder test. This paper introduces the principle and system composition of hydraulic cylinder type test, studies and analyzes its important measurement and control characteristics, and summarizes the development status of hydraulic cylinder, and improves the production technology level of hydraulic cylinder and the performance of hydraulic cylinder, introduces the principle and system composition of hydraulic cylinder type test, and analyzes its important measurement and control characteristics. The research significance of the hydraulic cylinder test and the content of the test stipulated by the national standard, etc. The key technologies of the hydraulic cylinder type test, such as internal leakage measurement, load efficiency measurement, starting pressure measurement and so on, are designed. The test can be used to detect the performance of hydraulic cylinder, and many tests can be carried out synchronously, which can realize remote stepless voltage regulation, compound speed regulation, proportional loading, etc. Automatic intelligent control of system test. According to the key technical problems of internal leakage measurement, load efficiency measurement and starting pressure measurement in hydraulic cylinder test, combined with the actual situation, A high precision detection system is designed. The temperature calibration method is used to measure internal leakage, which can be measured online in real time and has a very high detection accuracy, and for load efficiency measurement, the proportional relief valve is used to adjust the pressure. Laser measuring instrument monitors piston rod displacement, can be accurately measured and plotted on line. For starting pressure measurement, throttle valve and small range pressure gauge are used to accurately measure starting pressure on line. The test results show that the testing technology is stable, reliable, accurate and efficient, and greatly improves the production efficiency, which provides a reliable basis for the improvement of the production technology level of hydraulic cylinder. It is of great significance to the production and inspection of hydraulic cylinder.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH137.51

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