本文關(guān)鍵詞：球磨機滑履軸承的性能研究　出處：《南京航空航天大學(xué)》2011年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 滑履軸承 Reynolds方程 多重網(wǎng)格法 彈性變形 毛細(xì)管節(jié)流器

【摘要】：球磨機是一種固體物料制粉設(shè)備,其重載低速的工況條件對軸承性能提出很高的要求。液體靜壓軸承具有工作速度范圍寬、承載力大、抗沖擊性能良好、壽命長等優(yōu)點,因此常被用作球磨機的支承部件�；妮S承是一種由若干塊軸瓦組成的可傾瓦液體靜壓軸承,其油腔采用主油腔和平衡油腔相結(jié)合的形式,可通過調(diào)節(jié)兩種油腔間潤滑油的流量來調(diào)整瓦塊姿態(tài),從而滿足承載要求。 論文介紹了滑履軸承的結(jié)構(gòu),以流體潤滑理論為基礎(chǔ)建立了滑履軸承的求解理論模型。采用有限差分法和松弛迭代法求解簡化的Reynolds方程,得到了滑履軸承的油膜承載特性,并利用多重網(wǎng)格法加速解的收斂。采用商業(yè)有限元軟件ANSYS對球磨機進行了彈性變形分析,并將彈性變形計算與油膜分析進行了耦合。結(jié)果表明:考慮彈性變形后的最小膜厚值小于未考慮變形時的值,且油膜厚度和壓力的分布也發(fā)生了變化。 為分析軸承相關(guān)結(jié)構(gòu)參數(shù)對軸承性能的影響,對軸承的結(jié)構(gòu)參數(shù)進行了簡單的優(yōu)化比較,影響參數(shù)包括節(jié)流器結(jié)構(gòu)參數(shù)、油腔形狀和油腔面積比。得到了結(jié)構(gòu)參數(shù)與油腔壓力、潤滑油溫升等軸承性能之間的關(guān)系,為滑履軸承的設(shè)計提供參考。 為驗證理論計算的合理性,實驗測試了三種不同油腔面積比的軸瓦的油膜壓力、油膜厚度及潤滑油流量等。將實驗測試值與油膜計算結(jié)果做了比較,驗證了油膜理論計算的合理性,并分析了實驗中軸瓦四個平衡油腔油膜壓力不同的原因。
[Abstract]:Ball mill is a kind of solid material powder making equipment, its heavy load and low speed operating conditions put forward very high requirements for bearing performance. Hydrostatic bearing has a wide range of working speed, large bearing capacity and good impact resistance. Sliding shoe bearing is a kind of liquid hydrostatic bearing with tilting pad which is composed of several bearing bushings, and its oil chamber is a combination of main oil chamber and balance oil chamber. By adjusting the flow rate of lubricating oil between the two oil chambers, the tile posture can be adjusted to meet the bearing requirements. In this paper, the structure of sliding bearing is introduced. Based on the theory of fluid lubrication, the solution model of sliding shoe bearing is established. The simplified Reynolds equation is solved by finite difference method and relaxation iteration method. The oil film bearing characteristics of sliding shoe bearing are obtained, and the convergence of the solution is accelerated by using multi-grid method. The elastic deformation analysis of ball mill is carried out by commercial finite element software ANSYS. The results show that the minimum film thickness after elastic deformation is smaller than that without considering the deformation, and the distribution of oil film thickness and pressure is also changed. In order to analyze the influence of bearing structure parameters on bearing performance, the structural parameters of bearings are optimized and compared. The influence parameters include throttle structure parameters. The relationship between structure parameters and bearing performance such as pressure of oil chamber and temperature rise of lubricating oil is obtained, which provides a reference for the design of sliding shoe bearing. In order to verify the rationality of theoretical calculation, the oil film pressure, film thickness and lubricating oil flow rate of three kinds of bearing bearing with different oil cavity area ratio were tested experimentally. The experimental results were compared with the results of oil film calculation. The rationality of the theoretical calculation of oil film is verified, and the reasons for the different oil film pressure in the four balanced oil chambers of the bearing bush are analyzed.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH133.3

【引證文獻】

相關(guān)期刊論文 前2條

1 康延武;郭勤濤;姬建鋼;王成偉;;考慮土-結(jié)構(gòu)相互作用的磨機-基礎(chǔ)有限元動力分析[J];礦山機械;2013年02期

2 張振華;李超;王成偉;潘勁軍;;特大型礦用磨機滑履軸承計算模型與應(yīng)用[J];礦山機械;2013年10期

相關(guān)碩士學(xué)位論文 前1條

1 姚方;高壓輥磨機液體靜壓滑動軸承性能分析[D];南京航空航天大學(xué);2012年

，

本文編號：1431439