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弹性油箱是液压式弹性推力轴承中的弹性部件。近几年来,我厂生产的高推力负载大型水轮发电机组都采用了这种液压式弹性推力轴承。它有10个至20个弹性油箱,相互间用管道连通,充满透平油构成一个密封的连通系统。当推力负载压上时,每个弹性油箱内的油压同时增高,百分之九十左右的推力负载就靠这个油压来承受,因此,推力负载能均匀地分布在每块推力瓦上。对于每块推力瓦之间,由于安装精度的限制所造成的高低差,借助于弹性油箱的弹簧作用,能自动调平。所以这种液压式弹性推力轴承,比刚性支柱式推力轴承有着明显的优点,由于负载比较均匀,它可以承受较高的推力,对安装时调受力的要求可以放宽,运行时瓦温均匀。
Flexible tank hydraulic elastic thrust bearing in the elastic parts. In recent years, I plant the production of high-thrust load large hydro-generating units have adopted this hydraulic elastic thrust bearings. It has 10 to 20 flexible fuel tanks, communicating with each other through the pipeline, filled with turbine oil to form a sealed communication system. When the thrust load is applied, the hydraulic pressure in each elastic tank increases at the same time. Ninety percent of the thrust load is supported by this hydraulic pressure. Therefore, the thrust load can be evenly distributed on each thrust pad. For each thrust between the tile, due to the installation of precision constraints caused by the level difference, by means of the elastic role of the spring tank, can be automatically leveling. Therefore, this kind of hydraulic elastic thrust bearing has obvious advantages over the rigid support thrust bearing. Because of its uniform load, it can withstand higher thrust, relax the requirements of adjusting force during installation, and have uniform temperature during operation.