Damping type tilting pad thrust bearing

Abstract

The invention provides a damping-type tilting pad thrust bearing. The damping-type tilting pad thrust bearing comprises a pressure head, a thrust disc and a support ring. The support ring is coaxially arranged under the thrust disc, the pressure head is coaxially and fixedly connected to the upper surface of the thrust disc, and the thrust disc is coaxially and fixedly connected with a rotating shaft through the pressure head. The damping-type tilting pad thrust bearing further comprises multiple damping-type tilting pad assemblies which are uniformly fixed to the upper surface of the support ring at intervals and used for jointly bearing an axial load. Each damping-type tilting pad assembly comprises a pad face, an upper base body, a damping rubber gasket and a lower base body which are sequentially and closely connected from top to bottom, and gaps exist between the upper surfaces of the pad faces and the lower surface of the thrust disc; the cross sections of the damping rubber gaskets are in a stair shape in the axial direction, and the thicknesses of the damping rubber gaskets are gradually decreased in the rotating direction of the thrust disc; the lower base bodies are fixedly connected with the support ring. The damping-type tilting pad thrust bearing can adopt water as a lubricating agent and has the good damping effect.

Description

technical field [0001] The invention belongs to the technical field of underwater thrust bearings, in particular to a damping type tilting pad thrust bearing. Background technique [0002] At present, the multi-block thrust bearings at home and abroad are mainly divided into two categories, one is Mitchell bearings, and the other is Kingsbury bearings. Mitchell bearings have a strong adaptability to variable loads, but the load is not evenly distributed on each pad, which causes uneven wear of the thrust bearing pads. The Kingsbury bearing overcomes the above shortcomings. Its advantages lie in uniform load distribution, flexible adjustment, and compensation for misalignment and deflection of the rotor, but the structure is also extremely complicated. The above two bearings do not have the ability to reduce vibration and noise, and can only be used for oil lubrication. The Chinese patent "A Thrust Bearing Supported by an Elastic Pad" (CN201439803) discloses a thrust bearin...

AI Technical Summary

Problems solved by technology

The Chinese patent "A Thrust Bearing Supported by an Elastic Pad" (CN201439803) discloses a thrust bearing supported by an elastic pad, but since the elastic pad and the thrust pad are limited by cylindrical pins, the rubber pad and the thrust pad can only be installed horizontally. Its application range is limited, and it can only be used in vertical thrust situations such as vertical water turbines; the design of the thrust bearing only considers its load balancing function and oil lubrication environment, and cannot be used for water lubrication

[0003] Lubricating oil leakage of marine oil-lubricated thrust bearings will cause serious water pollution

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