提高涡轮增压器密封环成品率的工艺改进及修口专机研制

发布时间：2018-01-20 17:16

本文关键词： 涡轮增压器密封环开口间隙侧向间隙 CCD测量技术修口专机　出处：《武汉理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：密封环是机械领域应用广泛的一种零件,几乎在每一台机械设备上都有密封环的存在。本文需要研究的涡轮增压器密封环是涡轮增压器中重要的零部件之一,它存在于增压器的涡轮端和压气机端,主要作用是封气和封油,其质量好坏直接影响到涡轮增压器的使用寿命。本文研究的密封环是在常温常压下进行加工的,其工作条件是高温高压,其技术要求的提出也是建立在受压缩的高温高压的情况下。因此如何保证密封环符合技术要求就成了一件比较困难的事情。目前国内增压器密封环的生产工艺比较陈旧,生产成品率普遍不高。以某企业生产情况为例,密封环的成品率只有80%左右,剩下的次品报废或者进行人工修磨,费时费力且人工修磨的成功率也并不高。本文重点分析密封环装配到增压器后的侧向间隙和开口间隙,讨论对上述两种间隙有影响的因素,进而对现有的加工工艺进行了改进,能够使密封环的加工成品率有一定的提升。为检验加工后的密封环是否符合技术要求,并能快速分拣出成品、可修磨品和废品,本文利用CCD测量技术的原理,设计出了一套在自然状态下密封环开口最小值的自动检测方案,能够自动测量出自然状态下密封环的最小开口值。尽管密封环的成品率有一定提高,但为了进一步减小报废率,本文提出了一套对可修磨开口的密封环修口的专用机床总体方案,代替原先的人工修磨,从而提高生产效率、降低加工成本。本文的创新之处在于： (1)优化了现有的密封环加工工艺。 (2)设计出自动检测密封环开口最小值的方案,自动快速分拣出成品、可修磨品和废品。 (3)提出密封环修口专机总体方案,能够进一步提高密封环的成品率。本论文的研究内容对国内现有的密封环生产现状具有实用价值,具有较强的可应用性。
[Abstract]:Sealing ring is one of the most widely used parts in the field of machinery and almost exists on every mechanical equipment. The seal ring of turbocharger is one of the important parts of turbocharger in this paper. It exists at the turbine and compressor end of the turbocharger, and its main function is to seal the gas and seal the oil. The quality of the turbocharger has a direct impact on the service life of the turbocharger. The sealing ring studied in this paper is processed under normal temperature and pressure, and its working conditions are high temperature and high pressure. The technical requirements are also based on the compression of high temperature and high pressure. Therefore, how to ensure that the seal ring meets the technical requirements has become a more difficult matter. At present, the production process ratio of the domestic turbocharger seal ring. Older. The production rate is generally not high. Take the production situation of a certain enterprise as an example, the finished product rate of the seal ring is only about 80%, and the remaining defective products are scrapped or manually milled. It takes time and effort and the success rate of manual grinding is not high. This paper focuses on the analysis of the side clearance and opening clearance after the seal ring is assembled to the supercharger, discusses the factors that affect the above two clearance, and then improves the existing processing technology. It can improve the finished product rate of seal ring. In order to verify whether the seal ring after processing meets the technical requirements and can quickly sort out finished products, repairable grinding products and waste products, the principle of CCD measurement technology is used in this paper. An automatic detection scheme for the minimum opening of the seal ring in natural state is designed, which can automatically measure the minimum opening value of the seal ring in the natural state. Although the finished product rate of the seal ring has been improved, in order to further reduce the scrap rate, this paper puts forward a set of special machine tool for repairing the seal ring with repairable opening instead of the original manual grinding. In order to improve production efficiency and reduce processing costs. The innovations of this paper are: The existing process of sealing ring is optimized. The scheme of automatic detecting the minimum value of seal ring opening is designed, and the finished product, repairable grinding product and waste product are sorted out automatically and quickly. 3) the overall scheme of seal ring repair machine is put forward, which can further improve the finished product rate of seal ring. The research content of this paper has practical value and strong applicability to the present production situation of seal ring in China.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH136

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