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Heavy-duty sliding bearing

A technology for sliding bearings and bearings, which is applied in the direction of bearing components, shafts and bearings, bearing cooling, etc., and can solve problems such as increasing the risk of rotating machinery operation, poor cooling effect, and affecting the service life of bearings

Inactive Publication Date: 2012-06-27
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the forced circulation lubrication method is adopted, part of the heat can be taken away, but the contact area and time between the lubricating oil and the pad is limited, and the cooling effect is not good, which affects the service life of the bearing and increases the operation risk of the rotating machine

Method used

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  • Heavy-duty sliding bearing
  • Heavy-duty sliding bearing
  • Heavy-duty sliding bearing

Examples

Experimental program
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Embodiment Construction

[0011] see Figure 1 to Figure 4 , the heavy-duty sliding bearing includes a bearing seat 1 and a bearing body. The bearing body is composed of a plurality of arc-shaped pads 2 to form a ring and assembled in the bearing seat; the front of the arc-shaped pads 2 is matched with the supported shaft. The back of the arc-shaped tile 2 is matched with the bearing seat 1, and the two sides of the arc-shaped tile are the mating surfaces of adjacent tiles. The bearing has a forced circulation lubricating oil circuit, and the oil path passes through the front and back of the tile; It is characterized in that a number of radial cooling grooves 3 are respectively provided at the corners between the back of the arc tile and the two side surfaces, and the cooling grooves 3 are connected in series in the forced circulation lubricating oil circuit of the bearing.

[0012] For occasions requiring high rotor stability, the arc-shaped pad 2 can also be a tilting pad.

[0013] This structure ne...

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Abstract

The invention discloses a heavy-duty sliding bearing, which comprises a bearing seat and a bearing body, wherein the bearing body is a ring consisting of a plurality of arc-shaped pads and is assembled in the bearing seat; the front of each arc-shaped pad is matched with a supported shaft, the back of each arc-shaped pad is matched with the bearing seat, and two lateral surfaces of each arc-shaped pad are matched surfaces of the adjacent pads; and the bearing is provided with a forced circulating lubrication oil passage, and the oil passage passes through the fronts and the backs of the pads. The heavy-duty sliding bearing is characterized in that: a plurality of radial heat dissipation grooves are respectively formed on the crossing angle parts of the back and the two lateral surfaces of each arc-shaped pad, and the heat dissipation grooves are connected in series to the forced circulating lubrication oil passage of the bearing. The structure is particularly suitable for a tilting pad bearing, swinging of the tilting pads is not affected, and the rigidity of the tilting pads is not reduced; and the friction heat of the bearing is taken away by using the lubricating medium of the bearing, so that the aim of reducing the temperature of the pads is fulfilled.

Description

technical field [0001] The invention relates to a bearing, in particular to a heavy-duty sliding bearing used for a large rotating machine. Background technique [0002] The rotors of large rotating machines, such as steam turbines, are heavy and are usually supported by plain bearings. With the continuous increase of the power of rotating machinery, the weight of the rotor is also increasing, and the temperature of the bearing pad is very high, especially for sliding bearings with tilting pads, the friction between the pad back and the bearing seat is also very intense, resulting in The tile temperature is higher. Although the forced circulation lubrication method is adopted to take away part of the heat, the contact area and time between the lubricating oil and the pad is limited, and the cooling effect is not good, which affects the service life of the bearing and increases the operation risk of the rotating machine. Contents of the invention [0003] The object of th...

Claims

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Application Information

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IPC IPC(8): F16C33/04F16C37/00
Inventor 郭勇杨灵赵卫军
Owner DONGFANG TURBINE CO LTD
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