【作者】 汪芳；

【导师】 赵奇平；

【作者基本信息】 武汉理工大学 ， 机械设计及理论， 2006， 硕士

【摘要】 长期以来,在我国汽车零配件行业中,燃油泵阀门启闭特性的检测,一直延用六、七十年代的传统方法——手动或者半自动方式,这种传统的检测方法,检测系统结构复杂,且测试精度不高、工作量大、周期长、检测效率低下,不能高效精确地测试阀门的特性,难满足现代工业生产的要求。 针对传统检测方法的缺陷,本文对燃油泵阀门检测技术的发展进行了探讨,从理论上和实验两方面对燃油泵阀门的工作特性进行了分析,并结合某汽车零配件厂的燃油泵装配生产线项目,开发设计了燃油泵阀门启闭特性的在线检测系统,采用气路检测代替油液检测的方式,已申请了中国发明专利,专利申请号为200510018668.X。这种新型的燃油泵阀门工作特性的智能测试装置,检测效率高、误差小,不仅能检测燃油泵阀门的静态性能,还能对其动态性能作测试,适合于燃油泵装配生产线上的在线检测,从而可从根本上克服传统检测方式的缺陷,以正确掌握阀门的工作性能与状态。 本文主要进行了如下一些研究工作: (1) 研究了汽车供油系统的发展;分析了智能检测系统发展的必要性和市场前景。 (2) 深入探讨了燃油泵系统,包括电喷系统的主要元件结构和工作原理、燃油泵在电子喷射系统中的作用以及出油座组件结构及工作特性分析。 (3) 提出了燃油泵阀门工作特性的智能测试装置总体设计方案,按照单向阀、溢流阀的性能要求和检测方法,设计了系统装置的总体方案。 (4) 在分析传统检测方法缺陷的基础上,提出了用气路代替油路检测的新检测方法。 (5) 针对实验台分别进行了机械部分设计、气路部分设计、电路部分设计以及软件部分设计和研究。 随着计算机技术的迅猛发展,计算机技术应用于液压测试技术已显示出测试精度高,测试速度快,工作量大大减小的优越性。燃油泵阀门工作特性的智能在线检测技术的研究,为阀门检测技术开辟了新的发展途径。根据文献检索和申请专利时查新的结果,目前国内还没有进行过这种新型检测装置的研究。因此,关于燃油泵阀门工作特性的智能测试装置的研究和开发,具有一定的理论意义,且具有广泛的应用前景和经济价值。更多还原

【Abstract】 Nowadays, the testing method of the on-off character of the fuel pump valve is still following the traditional way: manual or half automatic control which was invested in 60 or 70 years of last century. The testing system is very complicated, can hardly meet the requirements of modern manufacturing. The testing method has low precision, high human workload, poor efficiency, can’t do the testing work well.In allusion to the disadvantages of the traditional testing method, we research the development of the fuel pump valve testing technology, analyze the working character of fuel pump valve in theory and practice, and designed a online testing system of fuel pump valve on-off character according to the project of the fuel pump assembly line of a automotive component manufacturer. We use gas to replace liquid in this testing system, and already applied a national invention patent for it, the patent number is 200510018668.X. This new-style intelligent work charactor testing device for furl pump valve has high testing efficiency, low error. It can detect not only the static performance of the fuel pump valve, but also the dynamic performance, So it’s suitable to use in the online detection of the fuel pump assembly line. And this method will conquer the disadvantage of the traditional testing method radically and predominate the valve’s working charactor and state better.This paper generally did the academic research and work listed bellow.(1)Research the development of automotive fuel supply system, analyze the market perspective and necessity of the intelligent testing system for the fuel pump.(2)Comprehand the fuel pump system thoroughly, including the main component and work theory of electronic injection system, the role that the fuel pump playes in the electronic injection system, the construction and work charactor of oil supply pump.(3)Put forward the blue print of the intelligent detecting device of fuel pump valve working charactor according to the capability request and detecting method of the single-direction valve and flooding valve.(4)Invent the new detecting method using gas to replace oil based on the analyse of the disadvantage of traditional method.(5)Do the research and discuss in mechanical part, gaseous transmission part, circuit part and software part.With the fast development of computer technology, more and more advantageshas shown in the utilize of computer technology in hydraulic detecting technology, like high prescion, high speed and low workload. The research of intelligent online testing technology inaugurated a new development space for the testing technology of fuel pump valve. Accordign to the literature searches and the result of serches when applied the patent, thers is no research of this new kind of testing device has been done in our country. So the academic research and application of the intelligent testing device of fuel pump valve working charactor has some academic significance, broad application prespective and huge economical value.更多还原