Thrust bearing pack assembled in series

Abstract

The invention relates to a thrust bearing pack assembled in series. The thrust bearing pack assembled in series comprises at least four strings of thrust bearings arranged in series and space ring assemblies, wherein each space ring assembly is arranged between every two strings of adjacent thrust bearings so as to divide the thrust bearings into at least two sub-bearing packs, and the number of the thrust bearings of each sub-bearing pack is smaller than or equal to three; each space ring assembly comprises an outer space ring and an inner space ring, the outer space ring corresponds to a bearing outer ring of each thrust bearing, and the inner space ring corresponds to a bearing inner ring of each thrust bearing; when the bearing inner ring of each thrust bearing needs to bear external axial force, the height of each outer space ring is smaller than that of each inner space ring; and when the bearing outer ring of each thrust bearing needs to bear external axial force, the height of each outer space ring is larger than that of each inner space ring. By means of the design, all the thrust bearings participating in assembly bear the axial force together, so that the external axial force is distributed on all the thrust bearings, the stress uniformity of all the thrust bearings is improved, and the service life of the thrust bearings is effectively prolonged.

Description

technical field [0001] The invention relates to a thrust bearing set assembled in series. Background technique [0002] Bearing assembly can improve the rigidity and load carrying capacity of the entire shaft system. There are many ways of bearing assembly, among which series assembly is the most critical. The purpose of the series assembly method is to make the bearings participating in the assembly share the axial force at the same time, reduce the force on each bearing, and thus increase its life. [0003] At present, for the series combination of three or more thrust bearings, usually the first three thrust bearings receive the main force, and the fourth and above thrust bearings in series usually have no or less force, resulting in the fourth and above. Thrust bearings cannot share the force or share less force. Contents of the invention [0004] The purpose of the present invention is to provide a thrust bearing group assembled in series to solve the problem that t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a thrust bearing group assembled in series to solve the problem that the fourth and above thrust bearings cannot share the action force or share the action force too much after three or more thrust bearings are assembled in series in the prior art. minor technical issues

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