单螺杆压缩机螺旋啮合副制造技术研究

发布时间：2018-02-23 00:11

本文关键词： 单螺杆压缩机啮合副星轮夹具　出处：《沈阳工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：单螺杆压缩机诞生于20世纪60年代的法国,是一种新型的容积式气体压缩机。由于其结构简单、力学性能优越、可靠性高等独特优势,从诞生以来,备受压缩机行业的欢迎。但是,其螺旋啮合副的形状复杂,导致制造困难,加工精度低,这个缺点制约着单螺杆压缩机的发展。目前,世界上只有少数几个发达国家能生产这种压缩机。国内的一些机构和单位虽然也掌握了啮合副型线的设计理论,但是对于怎样选择理想的啮合副型线,怎样加工出高精度的啮合副,这两个方面一直没有实质性进展。本文以圆柱—圆柱包络面啮合副为基础,对单螺杆压缩机螺旋啮合副进行了全面的研究,介绍了单螺杆压缩机工作和啮合原理,分析了理想啮合型线如何选择的问题,建立了啮合副的空间数学模型,利用空间数学模型设计了啮合副的主要参数,确定了啮合副的型面方程,从而验证啮合副包络原理的正确性。星轮的设计和加工都是单螺杆压缩机研究的难点,本文从星轮的材料、特性、以及加工制造工艺等方面进行分析与研究,最终设计出了合理的星轮片,以及专用的加工工具,通过试验验证了啮合副新加工方法的可行性。对星轮等核心部件的三维建模,为啮合副的加工提供了极大的方便,也为提高啮合副的精度提供了理论依据。本文研究了单螺杆压缩机流体动力润滑的特性,为提高啮合副可靠性及稳定性提供了有力的理论基础。由于西方发达国家对我国的技术封锁,单螺杆压缩机在国内发展缓慢,产品合格率低,使用寿命短,且不能达到批量生产。限制国内单螺杆压缩机发展的主要技术难题是啮合副的设计及加工,这也是选择本课题的主要原因。本文的研究对单螺杆压缩机螺旋啮合副,尤其是星轮的加工具有重大意义。
[Abstract]:Single screw compressor, born in France in 1960s, is a new type of volumetric gas compressor. Because of its simple structure, superior mechanical properties, high reliability and other unique advantages, since its birth, It is popular in the compressor industry. However, the complex shape of its screw meshing pair leads to manufacturing difficulties and low machining accuracy, which restricts the development of single screw compressor. Only a few developed countries in the world can produce this type of compressor. Although some domestic institutions and units have also mastered the design theory of the meshing pair line, they are concerned about how to choose the ideal meshing pair line. There has been no substantial progress in how to produce high-precision meshing pairs. On the basis of cylindrical cylindrical envelope meshing pair, the helical meshing pair of single screw compressor is studied in this paper. The working principle and meshing principle of single screw compressor are introduced, and the problem of how to select ideal meshing profile is analyzed. The spatial mathematical model of the meshing pair is established, the main parameters of the meshing pair are designed by using the spatial mathematical model, and the shape plane equation of the meshing pair is determined. The design and processing of the star wheel are the difficulties in the research of the single screw compressor. This paper analyzes and studies the material, characteristics and manufacturing technology of the star wheel. Finally, the reasonable star wheel sheet and special machining tools are designed, and the feasibility of the new machining method of the meshing pair is verified by experiments. The 3D modeling of the core parts such as the star wheel provides great convenience for the machining of the meshing pair. In this paper, the characteristics of hydrodynamic lubrication of single screw compressor are studied, which provides a powerful theoretical basis for improving the reliability and stability of meshing pairs. As a result of the technical blockade imposed on our country by the developed countries in the West, the single-screw compressor is developing slowly in China, with a low qualified rate of products and a short service life. The main technical problem limiting the development of single screw compressor in China is the design and processing of meshing pair, which is also the main reason for choosing this subject. Especially the processing of star wheel is of great significance.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH45

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