【摘要】：本課題以國(guó)家科技重大專項(xiàng)“高速、重載、精密滾珠絲杠與直線導(dǎo)軌”為背景,針對(duì)國(guó)產(chǎn)高端滾動(dòng)功能部件在精度保持性和疲勞壽命可靠性方面與NSK、THK等同類產(chǎn)品的差距,對(duì)多種不同類型滾動(dòng)功能部件的可靠性試驗(yàn)、分析及評(píng)估方法進(jìn)行研究,為國(guó)產(chǎn)滾動(dòng)功能部件的改進(jìn)與提高提供檢驗(yàn)手段與設(shè)計(jì)依據(jù)。 對(duì)與滾動(dòng)功能部件可靠性有關(guān)的指標(biāo)、概念以及關(guān)鍵技術(shù)進(jìn)行了分析總結(jié),給出了滾動(dòng)功能部件可靠性研究的路線。 對(duì)滾珠絲杠副可靠性工程試驗(yàn)與分析方法進(jìn)行了研究。提出了精密滾珠絲杠副恒定應(yīng)力加速試驗(yàn)的方法,進(jìn)行了可靠性工程試驗(yàn),并對(duì)精度和摩擦力矩的變化情況、故障情況以及磨損壽命進(jìn)行了分析研究；提出了高速滾珠絲杠副性能綜合試驗(yàn)方法,采用此方法對(duì)性能指標(biāo)進(jìn)行了檢測(cè),同時(shí)對(duì)空心和實(shí)心高速滾珠絲杠副的各項(xiàng)性能指標(biāo)進(jìn)行了對(duì)比分析；提出了重載滾珠絲杠副恒定應(yīng)力加速試驗(yàn)的方法,進(jìn)行了可靠性工程試驗(yàn),并對(duì)反向間隙、摩擦力矩以及疲勞壽命進(jìn)行了分析研究。 對(duì)滾動(dòng)直線導(dǎo)軌副可靠性工程試驗(yàn)與分析方法進(jìn)行了研究。提出了基于步進(jìn)加載的重載滾動(dòng)直線導(dǎo)軌副可靠性試驗(yàn)方法,進(jìn)行了可靠性工程試驗(yàn),并對(duì)精度和摩擦力變化情況、失效情況以及疲勞壽命進(jìn)行了分析研究；提出了高速精密滾動(dòng)直線導(dǎo)軌副可靠性試驗(yàn)方法并進(jìn)行了試驗(yàn),對(duì)其精度、摩擦力變化情況以及滾動(dòng)直線導(dǎo)軌副壽命進(jìn)行了分析研究。 對(duì)滾動(dòng)功能部件可靠性測(cè)定試驗(yàn)與評(píng)估方法進(jìn)行了研究。針對(duì)滾動(dòng)功能部件特點(diǎn),提出了一種結(jié)合小子樣試驗(yàn)與加速壽命試驗(yàn)的可靠性測(cè)定試驗(yàn)方法,并采用虛擬增廣子樣理論和超過(guò)概率權(quán)重矩法建立了精密滾珠絲杠副磨損壽命的三參數(shù)威布爾模型和重載滾動(dòng)直線導(dǎo)軌副疲勞壽命的三參數(shù)威布爾模型。 在此基礎(chǔ)上,從進(jìn)一步提高滾動(dòng)功能部件可靠性出發(fā),對(duì)滾動(dòng)功能部件可靠性設(shè)計(jì)方法進(jìn)行了研究,并對(duì)滾動(dòng)功能部件可靠性管理的流程與措施進(jìn)行了總結(jié)。
[Abstract]:Based on the national science and technology major project "high speed, heavy load, precision ball screw and linear guide rail", this paper aims at the gap between the precision retention and fatigue life reliability of domestic high-end rolling function components and NSK,THK and other similar products. The reliability test, analysis and evaluation methods of various kinds of rolling function components are studied, which provide the test means and design basis for improving and improving the rolling function components made in China. The indexes, concepts and key technologies related to the reliability of rolling functional components are analyzed and summarized, and the research route of reliability of rolling functional components is given. The reliability engineering test and analysis method of ball screw pair are studied. The method of accelerating the constant stress test of precision ball screw is put forward, the reliability engineering test is carried out, and the variation of precision and friction moment, failure and wear life are analyzed and studied. A comprehensive test method for the performance of high speed ball screw pair is put forward. The performance index is tested by this method, and the performance indexes of hollow and solid high speed ball screw pairs are compared and analyzed. The accelerated test method of constant stress of heavy-duty ball screw is put forward, the reliability engineering test is carried out, and the reverse clearance, friction moment and fatigue life are analyzed and studied. The reliability engineering test and analysis method of rolling linear guideway pair are studied. The reliability test method of heavy load rolling linear guideway pair based on step loading is put forward, and the reliability engineering test is carried out, and the variation of precision and friction force, failure situation and fatigue life are analyzed and studied. The reliability test method of high speed precision rolling linear guideway pair is put forward, and the precision, friction change and the life of rolling linear guide rail pair are analyzed and studied. The reliability test and evaluation method of rolling function parts are studied. According to the characteristics of rolling function parts, a reliability test method combining small sample test and accelerated life test is proposed. The three parameter Weibull model of the wear life of the precision ball screw pair and the three parameter Weibull model of fatigue life of the heavy load rolling linear guide rail pair are established by using the virtual augmented subsample theory and the method of excess probability weight moment. On this basis, the reliability design method of rolling functional components is studied in order to further improve the reliability of rolling functional components, and the process and measures of reliability management of rolling functional components are summarized.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH133

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 張陳靈;高承載工況下滾珠絲杠副的接觸變形與剛度分析[D];南京理工大學(xué);2013年

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本文編號(hào)：2414480