Self-balancing thrust sliding bearing

Abstract

The invention discloses a self-balancing thrust sliding bearing. The self-balancing thrust sliding bearing comprises a plurality of thrust bearing bushes and a supporting seat. The supporting seat comprises an upper seat and a bottom plate, the upper seat is installed on the bottom plate, a plurality of cylindrical through holes are formed in the upper seat, and the through holes are located in the same circumference and evenly distributed in the circumference. One thrust bearing bush is arranged in each through hole. An oil groove and an oil inlet hole are formed in the bottom plate, each cylindrical through hole in the upper seat communicates with the oil groove, and the oil inlet hole communicates with the oil groove. Cylindrical mounting parts are arranged at the bottoms of the thrust bearing bushes, the mounting parts are inserted into the through holes of the upper seat, sealing rings are arranged between the mounting parts and the through holes, and a cavity defined by the oil groove, the through holes, the mounting parts of the thrust bearing bushes and the sealing rings is filled with hydraulic oil. The self-balancing thrust sliding bearing is simple in structure, low in cost and good in self-balancing effect, and uniform load between the thrust bearing bushes is achieved.

Description

technical field [0001] The invention belongs to the technical field of thrust bearings, in particular to a self-balancing thrust sliding bearing. Background technique [0002] For thrust bearings, in order to increase its bearing capacity and reduce the pad temperature, various load-sharing structures are generally used to balance the load of each thrust bearing pad. Currently commonly used load sharing structures include: spring structures, bridge balance mechanisms, etc. Among them, the spring structure can realize the load sharing between all the bearing pads, and the structure is relatively simple, but the stiffness consistency of the spring itself has a great influence on the uniform loading of the bearing pads, especially for the occasions with large loads, the spring stiffness should not be over-designed. If it is too low, it will cause large axial movement. The bridging balance mechanism has high requirements on the machining accuracy of the balance mechanism itsel...

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a self-balancing thrust bearing with simple structure, which can realize load sharing of thrust bearings, and has a self-locking function, which can prevent excessive axial displacement under excessive load conditions. Plain bearing

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