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Tilting-pad sliding bearing nozzle with elastic thermal oil partition devices

A technology for sliding bearings and hot oil, applied in sliding contact bearings, rotating bearings, bearings, etc., can solve the problem of increasing the amount of lubricating oil, and achieve the effects of reducing oil inlet temperature, ensuring stability, and improving cooling efficiency

Active Publication Date: 2018-09-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach can lead to a dramatic increase in the amount of lubricating oil required by preventing excess hot oil from passing to the next tile

Method used

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  • Tilting-pad sliding bearing nozzle with elastic thermal oil partition devices
  • Tilting-pad sliding bearing nozzle with elastic thermal oil partition devices
  • Tilting-pad sliding bearing nozzle with elastic thermal oil partition devices

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Embodiment Construction

[0031] In order to make the technical means and features realized by the present invention easy to understand, the present invention will be described below in conjunction with the accompanying drawings.

[0032] Such as Figure 1-Figure 2 shown;

[0033] Between the tilting pads 2 of the tilting pad sliding bearings, an oil inlet nozzle 4 and a hot oil partition device 3 are arranged. The cold lubricating oil reaches the bearing pressure equalizing oil groove 7 through the lubricating oil pipeline, and the oil entering the oil inlet nozzle 4 channel 6;

[0034] The oil inlet channel 6 is inclined at 45°, so that the cold lubricating oil can more easily enter the gap between the tilting pad 2 and the rotor 1, forming a dynamic pressure oil film to support the weight of the rotor 1 and take away the friction generated by the rotation of the rotor 1 of heat, the hot oil is discharged from the other side of the tilting pad.

[0035] The oil inlet channel is connected with the ...

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Abstract

The invention discloses a tilting-pad sliding bearing nozzle with elastic thermal oil partition devices. A bearing is a tilting-pad sliding bearing; a bearing retaining body is arranged outside tilting-pad broken pads; an annular oil supplying tank is arranged on the bearing retaining body; holes are formed in the oil supplying tank to enable lubricating oil to flow into nozzle bodies; oil inlet channels are formed in the nozzle bodies to correspond to the holes in the oil supplying tank, and thus a cold oil way is unblocked; oil spraying holes are oblique by 45 degrees; and the multiple oil spraying holes are formed in the nozzle bodies at equal intervals to cover the whole pad width. T-shaped grooves are formed in the nozzle bodies; counter bores are formed in the bottoms of the T-shapedgrooves; elastic elements are mounted in the counter bores; the thermal oil partition devices are mounted on the elastic elements; and holes are formed in the tops of the thermal oil partition devices to store a part of the lubricating oil, and it is guaranteed that when the thermal oil partition devices generate friction with a rotor, full lubricating can be achieved. The mixing ratio of the thermal lubricating oil and the new cold lubricating oil can be effectively adjusted, the oil inlet temperature can be significantly decreased, the cooling efficiency is improved, and it is guaranteed that the situation that after an oil film is formed, lubricating grease is damaged by the high temperature, and consequently the bearing capacity is reduced is avoided.

Description

technical field [0001] The invention relates to the field of sliding bearings, in particular to a lubrication structure for a tilting pad sliding bearing. Background technique [0002] Sliding bearings are an important part of rotating machinery such as gas turbines, steam turbines, and gearboxes. They have outstanding advantages such as stable operation, high load-carrying capacity, low friction coefficient, good vibration absorption, and reliable operation. The development trend of modern engineering technology is to increase the bearing capacity of the bearing and increase the speed of the bearing, which will cause the temperature of the lubricating oil in the sliding bearing to rise sharply, resulting in a decrease in the viscosity of the lubricating oil or even loss of lubricating ability. [0003] The lubrication of sliding bearings is hydrodynamic lubrication, and the lubrication method of tilting pad sliding bearings is generally direct lubrication or oil-immersion l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/12F16C37/00F16N7/36
CPCF16C17/24F16C17/243F16C37/00F16N7/36F16N2210/14
Inventor 王维民高帅
Owner BEIJING UNIV OF CHEM TECH
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