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本文对空气静压轴承在0～24万转/分范围内,刚性支承的情况下,从介绍测试涡动振幅与频率的关系开始,进行了供气压力、轴承间隙、不平衡量大小等因素对高速稳定性影响的试验分析,比较了沟槽、孔式及切向供气等五种结构轴承的高速特性;给出了试验发现的一些规律:涡动起始速度随间隙的变化关系存在有两个最佳间隙,第二最佳间隙的大小远远超过了一般设计概念所考虑的范围;沟槽节流轴承的稳定性优于孔式节流的;单排轴承的稳定性比双排的优越;沟槽节流轴承也存在所谓“阻塞”的问题。最后指出了高速空气静压轴承设计上的一些基本问题。
In this paper, the static pressure of air bearings in the 0 ~ 240,000 rev / min range, the case of rigid support, from the introduction of the relationship between the test of the relationship between the eddy amplitude and frequency, the supply pressure, bearing clearance, the amount of unbalance and other factors Speed stability of the test analysis, compared the groove, hole and tangential gas supply five kinds of structural bearings, such as high-speed characteristics; given some of the laws found in the test: vortex starting speed changes with the gap exists The size of the second best clearance, the second best clearance far exceeds the range considered by the general design concept; the stability of the grooved throttle bearing is better than that of the orifice; the stability of the single-row bearing is better than that of double-row The superiority; There are also the existence of the so-called “throttle” throttle problem. Finally, some basic problems on the design of high speed air hydrostatic bearing are pointed out.