Centrifugal Effect of Thrust Plate of Water-lubricated Thrust Bearing and its Influence Mode

Abstract

Water-lubricated thrust bearing with water as the medium, is a mechanical transmission medium with energy saving and environmental protection. The thrust bearing with water medium can reduce the wear of bearing and the friction between gears. At the same time, the shape of the rolling bearing in the state of high-speed operation is bound to undergo a series of changes, and the radial working clearance is also slightly changed due to the centrifugal effect under high-speed operation, which has a certain degree of influence on the thrust disc. The shielded thrust disc avoids the problem of loose sealing, and the tilting thrust bearing has the advantages of obvious centrifugal effect, large rotating inertia of the thrust disc and large bearing size. In view of the characteristics of thrust bearing structure of water medium, this study established the coupling calculation model of the thrust plate after centrifugal denatination based on the finite element analysis method, and explored the design parameters of two key clearances in the assembly structure of the thrust plate. It is found in this paper that the tilting pad bearing under low speed steering will compensate for the deformation of the thrust disc, and when the rotating speed is greater than 3600r/min, the centrifugal deformation of the thrust disc will increase in morphology and even lead to lubrication failure. Therefore, the speed is an important factor that influences the centrifugal effect of the thrust disc and the bearing disc body enlargement.