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Lubricating device and method for an axial oil collector ring and an aeroengine main bearing ring

An oil scavenger, axial technology, applied in the direction of engine lubrication, engine components, engine cooling, etc., can solve the problems of simple injection lubrication structure, achieve high oil scavenging efficiency, reduce splashes, and prolong service life.

Active Publication Date: 2021-06-29
西安瑞谱捷特动力技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional spray lubrication has a simple structure and is only suitable for bearings with low speed and less heat input from the main shaft; high-performance aeroengines adopt the oil supply lubrication method under the ring with high lubrication efficiency, which can provide high speed and heat transfer to the main shaft More bearings provide sufficient lubricant

Method used

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  • Lubricating device and method for an axial oil collector ring and an aeroengine main bearing ring
  • Lubricating device and method for an axial oil collector ring and an aeroengine main bearing ring
  • Lubricating device and method for an axial oil collector ring and an aeroengine main bearing ring

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1 to Figure 3As shown, this embodiment provides an axial oil collector, including a cylindrical oil collector body 11, one end of the oil collector body 11 is the oil inlet end; The oil collecting grooves are arranged in the circumferential direction, and one end of the oil collecting grooves is connected to the opening of the oil inlet end of the oil collecting ring body to form an oil collecting inlet, and the other end of the oil collecting grooves is not connected to form an oil collecting retaining wall; The bottom of the oil collecting groove is provided with an oil delivery hole 12 that runs through the wall of the oil collecting ring body 11; the oil collecting grooves are all inclined to the same side; The distance from the oil retaining wall to the oil receiving inlet is greater than the distance from the oil receiving retaining wall of the short oil receiving groove 14 to the oil receiving inlet; the wall between the long oil receiving groove ...

Embodiment 2

[0045] Such as Figures 1 to 7 As shown, this embodiment provides a lubricating device under the main bearing ring of an aeroengine, including the axial oil collector 10 in Embodiment 1, and also includes: a main shaft 20, a bearing, a bearing seat 30 sleeved outside the bearing, and a The oil supply nozzle 40 on the bearing seat 30 and connected to the oil supply path; the oil supply nozzle 40 penetrates into the bearing seat 30; the axial oil collection ring 10 is set on the main shaft 20, and the bearing is sleeved on the axial oil collection ring 10, Both the axial oil collector ring 10 and the bearing can rotate synchronously with the main shaft 20 .

[0046] Bearing comprises front bearing 50 and rear bearing 60, and front bearing 50 comprises front bearing inner ring 51, front bearing outer ring 52 and is located between front bearing inner ring 51 and front bearing outer ring 52 and is held by front bearing cage 53. The front bearing rolling body 54; the rear bearing ...

Embodiment 3

[0051] This embodiment provides a method for lubricating under the main bearing ring of an aero-engine, which is realized by using the device in Embodiment 2, and specifically includes the following steps:

[0052] Lubricating oil is sprayed from the oil supply nozzle to the oil inlet end of the axial oil collection ring, and the injection direction of the oil supply nozzle is determined by Figure 7 The velocity triangle shown is determined. The lubricating oil enters the long and short oil collecting grooves tangentially to the tip of the oil collecting blade. to the inner wall of the axial oil collector ring, the lubricating oil with kinetic energy tends to flow axially along the inner wall of the axial oil collector ring, and at the same time, the groove depth of the oil receiver groove from the oil receiver inlet to the oil receiver retaining wall gradually increases , the lubricating oil flowing against the wall is accelerated by the centrifugal force component and flows...

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Abstract

The invention provides an axial oil collector ring and an aeroengine main bearing ring lubricating device and method. The axial oil collector ring includes a cylindrical oil collector ring body. Arranged oil collection grooves, and one end of the oil collection groove is connected to the opening of the oil inlet end of the oil collection ring body to form an oil collection inlet, and the other end of the oil collection groove is not connected to form an oil collection retaining wall; The bottom of the oil tank is provided with an oil delivery hole through the wall of the oil collection ring body; the under-ring lubricating device includes an axial oil collection ring, a main shaft, a bearing, a bearing seat set outside the bearing, and a bearing seat set on the bearing seat and connected to the oil supply circuit. The oil supply nozzle penetrates into the bearing seat; the axial oil collector ring is sleeved on the main shaft, the bearing is sleeved on the axial oil collector ring, and both the axial oil collector ring and the bearing can rotate synchronously with the main shaft. The invention can realize quantitative distribution of lubricating oil under high oil collection efficiency, meet the lubricating and cooling requirements of high-speed rolling bearings, and improve the safety and reliability of the bearings.

Description

technical field [0001] The invention belongs to the field of oil supply lubrication for aero-engine bearings, and relates to a lubricating device and method for an axial oil collector ring and an aero-engine main bearing ring. Background technique [0002] The speed of the main shaft of the aeroengine increases with the improvement of engine performance and output power, and then the DN value of the bearing increases accordingly, resulting in an increase in the contact angle of the inner ring of the bearing and a decrease in the contact angle of the outer ring, and at the same time, the spin speed of the rolling elements increases. The resulting increase in bearing heat generation may accelerate bearing damage and failure. The aero-engine lubrication system can provide an appropriate amount of lubricating oil to the bearings supporting the rotor to reduce the friction and wear between the various components and remove the generated heat in time. The traditional spray lubric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/06F02C7/16
CPCF02C7/06F02C7/16
Inventor 吕亚国姜乐刘振侠张丽芬刘振刚吴丁毅朱鹏飞
Owner 西安瑞谱捷特动力技术有限公司
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