基于液压试验平台的液压往复密封技术研究

发布时间：2018-03-10 19:06

本文选题：往复运动密封　切入点：Y形密封圈　出处：《天津科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着现代工业的发展,机械设备对液压技术的应用越来越广泛,而且正在向高温、高压、高速、高效率和高可靠性方向发展。机械设备能否满足这些要求,往复密封具有重要的影响作用。然而,长期以来,人们无法从理论上精确计算出液压往复密封的性能参数,而生产中也很难全面合理的对产品质量进行评估,只能从使用过程中得到一些极为有限的确定性较差的间接结果。因此在传统的密封设计中,大多数都是凭借经验和技巧,设计过程带有很大的试凑性和偶然性,很难在较短时间内设计出有效性、可靠性和耐久性都比较高的方案。而即使设计出来的密封结构,其性能评价在实验之前不可预见,因此设计良好的密封实验平台,对测试密封圈的性能,改进密封圈的密封效果,缩短新产品的研发周期,提高设备的密封性能,具有重要意义。本文阐述了密封装置的实验原理、实验目的和实验平台的功能,对密封装置实验平台的方案设计进行了比较和选择,并对密封装置实验平台的关键技术进行了探索,为了分析实验结果,通过有限元分析软件对密封件的摩擦力等进行了模拟计算,主要研究内容如下：评述了液压往复密封技术及往复密封实验和往复密封有限元分析技术的国内外研究动态,提出液压往复密封实验技术的发展趋势。通过对液压往复密封技术的工作过程分析,分析和确定了往复密封实验的基本原理和实验平台的功能和目的。根据密封实验的基本原理,通过评估实验装置的复杂性、经济性和实验结果的准确性等方面设计并选择了有效的往复密封实验平台方案。并对液压往复密封件的实验装置的关键技术,如数据采集技术、控制技术、结构设计等进行了深入研究。文中还运用ANSYS进行了Y形密封圈的分析,得到了密封圈的接触压力曲线和间隙咬伤临界曲线,为密封实验的数据分析提供参考依据。
[Abstract]:With the development of modern industry, machinery and equipment of hydraulic technology is applied more and more widely, and is the high temperature, high pressure, high speed, high efficiency and high reliability. The development direction of mechanical equipment can meet these requirements, reciprocating seal has an important effect. However, a long time, people can theoretically calculated performance parameters hydraulic reciprocating seal, and the production is also very difficult to comprehensive and reasonable assessment of the quality of products, from in the process of using only some very limited certainty of poor results. So in the indirect sealing design in the traditional, most are based on experience and skills, the design process with a lot of trial and error and accidental and it is difficult to effective design in a relatively short period of time, higher reliability and durability of the scheme. And even if the sealing structure design of the performance evaluation can not be before the experiment See, so the design of good sealing performance test on the experimental platform, the sealing ring, improve the sealing effect of the sealing ring, shorten the development cycle of new products, improve the sealing performance of equipment, which is of great significance. This paper describes the experimental principle of the sealing device, the purpose and the function of the experimental platform, experimental platform of sealing device the scheme of comparison and selection, and the key technology of sealing experiment platform are explored, in order to analyze the experimental results by finite element analysis software to seal friction was simulated. The main research contents are as follows: hydraulic reciprocating reciprocating seal seal technology and finite element analysis technology and the domestic reciprocating seal test research on the dynamic development trend, put forward the experiment of hydraulic reciprocating seal technology. Through the working process of hydraulic reciprocating seal technology analysis, analysis And determine the basic principle and experimental platform of hydraulic reciprocating seal the function and purpose. According to the basic principle of the sealing experiment, by evaluating the complexity of experiment device, economy and experimental results chose effective reciprocating accuracy and other design and seal experimental platform scheme. Key technologies and sealing parts on the hydraulic reciprocating experimental device, such as data acquisition technology, control technology, structure design are discussed. This paper also analyzes the Y ring by ANSYS, the contact pressure curve and the clearance between the sealing ring bite critical curve, provide the reference for the sealing experiment data analysis.

【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH137;TH136

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