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Novel dynamic and static pressure tilting pad thrust bearing thrust pad structure

A technology of thrust bearings and thrust pads, which is applied to sliding contact bearings, bearings for rotational motion, bearings, etc., and can solve problems such as economic losses, tile burning accidents, and oil film ruptures

Inactive Publication Date: 2019-05-03
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the working process, the thrust pad sometimes has a very high temperature, which causes the viscosity of the lubricating oil to decrease. In severe cases, the oil film may rupture and cause a pad burning accident. At this time, it needs to be shut down for maintenance, which brings great economic losses.

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  • Novel dynamic and static pressure tilting pad thrust bearing thrust pad structure
  • Novel dynamic and static pressure tilting pad thrust bearing thrust pad structure

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specific Embodiment approach

[0010] The specific implementation of the present invention will be described below with reference to the accompanying drawings: a novel dynamic and static pressure tilting pad thrust bearing thrust pad structure, including: main pad body (1), static pressure oil chamber (2), static pressure oil passage (3 ), the oil outlet hole (4) and the temperature sensor (5), the static pressure oil chamber and the dynamic pressure working area are distributed in an area of ​​1:2, and the depth of the oil chamber is 5mm to ensure the maximum working efficiency of the oil film. There is a 5cm-wide groove between the dynamic pressure part and the static pressure part, and there are 3 oil outlet holes to prevent the oil film from being broken during normal operation. A throttle valve is set in the static pressure oil circuit for Oil pressure is controlled and controlled by a temperature sensor.

[0011] The working process of the thrust pad structure of a new type of dynamic and static press...

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Abstract

The invention relates to a novel dynamic and static pressure tilting pad thrust bearing thrust pad structure. The novel dynamic and static pressure tilting pad thrust bearing thrust pad structure comprises a main pad body (1), astatic pressure oil cavity (2), a static pressure oil path (3), oil outlet holes (4) and a temperature sensor (5), during normal working of a thrust pad, the fluid dynamicpressure is mainly used for supporting a thrust plate, static pressure support is secondary, the oil outlet holes are formed in the middle of a bearing pad, thus mutual interference of oil between thetwo parts of the thrust pad is reduced, a throttle valve is arranged in the static pressure oil path, and the throttle valve is controlled by the temperature sensor. According to the novel dynamic and static pressure tilting pad thrust bearing thrust pad structure, a thrust pad feedback system is arranged, the possibility of pad burning can be reduced, and the life of bearings is greatly improved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a novel dynamic and static pressure tilting pad thrust bearing thrust pad structure. Background technique [0002] Tilting pad thrust bearings can well adapt to changes in working conditions, and are widely used in large steam turbines and water turbines to bear the axial load of the entire unit. However, during the working process, the thrust pad sometimes has a very high temperature, which causes the viscosity of the lubricating oil to decrease. In severe cases, the oil film may rupture and cause a pad burning accident. At this time, it needs to be shut down for maintenance, which brings great economic losses. Therefore, a new type of thrust pad structure for tilting pad thrust bearings is needed to reduce the occurrence of pad burning events. Contents of the invention [0003] The invention provides a novel dynamic and static pressure tilting pad thrust bearin...

Claims

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Application Information

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IPC IPC(8): F16C17/06F16C17/08F16C32/06
Inventor 李永海沈健马珅
Owner HARBIN UNIV OF SCI & TECH
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