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Method for measuring temperature of inner ring and outer ring of bearing between double-rotor engine rotors

A dual-rotor engine, inner and outer ring technology, applied in the field of aero-engines, can solve problems such as difficulty in reading data and oil mist interference

Inactive Publication Date: 2011-01-19
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The rotor of an aviation dual-rotor engine is usually in a state of high temperature, relatively high-speed rotation, and surrounded by oil mist during work, and the inter-rotor bearing is a key component in a dual-rotor engine. It is usually measured by non-contact measurement, such as infrared temperature measurement method, but the oil mist will cause great interference; if online contact measurement is used, it will be very difficult to read data online on the high-speed rotating rotor shaft. difficulty

Method used

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  • Method for measuring temperature of inner ring and outer ring of bearing between double-rotor engine rotors
  • Method for measuring temperature of inner ring and outer ring of bearing between double-rotor engine rotors
  • Method for measuring temperature of inner ring and outer ring of bearing between double-rotor engine rotors

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Embodiment Construction

[0011] The method for measuring the temperature of the inner and outer rings of the inter-rotor bearing of the dual-rotor engine of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0012] Such as image 3 As shown, the temperature recording device 5 is first wrapped with airgel, and then fixed on the rotor shaft 1 or the outer rotor mounting seat 4 of the engine with screws, and the temperature sensing probe 6 is implanted on the inner ring 2 of the bearing or the outer ring 3 of the bearing, Make the sensitive part of the temperature probe 6 close to the inner ring 2 of the bearing or the outer ring 3 of the bearing.

[0013] After the rotor of the engine starts to rotate, the temperature sensing probe 5 and the temperature recording device 3 will rotate with the rotor shaft 1 at an equal angular velocity. When the rotation speed of the rotor shaft 1 is greater than 3000 rpm, the temperature recording device 3 will be...

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Abstract

The invention belongs to the technical field of air engines, disclosing a method for measuring the temperature of an inner ring and an outer ring of a bearing between double-rotor engine rotors. A mode of collecting stored data on line and reading data off line is adopted, a small temperature measuring system is utilized, the rotation speed of a rotor shaft is taken as the control parameter of a centrifugal switch so as to control the collection storage of temperature data, and a heat insulating material is used for covering a temperature recording device installed in the small temperature measuring system in the engine. After the rotor shaft of the engine stops working, the temperature recording device is removed; then a temperature data reading device is connected; the temperature data reading device is connected to a computer via a USB interface to read temperature data and realize the measurement of the temperature of the inner ring and the outer ring of the bearing between the rotors in the process of high-speed rotation at high temperature under the condition of oil mist surrounding.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a method for measuring the temperature of inner and outer rings of bearings between rotors of a dual-rotor engine. Background technique [0002] The rotor of an aviation dual-rotor engine is usually in a state of high temperature, relatively high-speed rotation, and surrounded by oil mist during work, and the inter-rotor bearing is a key component in a dual-rotor engine. It is usually measured by non-contact measurement, such as infrared temperature measurement method, but the oil mist will cause great interference; if online contact measurement is used, it will be very difficult to read data online on the high-speed rotating rotor shaft. difficulty. Contents of the invention [0003] Aiming at the problems in the prior art of temperature measurement of the inner and outer rings of the inter-rotor bearings of a dual-rotor engine, the present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/18
Inventor 赵铁军李宁苏李健隋雪冰梁存良王伯雄
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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