Positioning method for main oil cavity high-pressure failure cause of helicopter main reducing gear

A main reducer and failure cause technology, which is applied in the direction of engine lubrication, machine gear/transmission mechanism testing, aircraft parts, etc., can solve problems that are prone to misunderstanding, increase troubleshooting cycle and cost, and lack of technical personnel, etc., to achieve reduction Troubleshooting period, ensuring flight safety, and reducing the effect of troubleshooting costs

Inactive Publication Date: 2016-08-10
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the troubleshooting process, technicians do not have specific steps and methods, and can only rely on experience to troubleshoot, which is very easy to cause misunderstandings and cannot accurately locate the cause of the high pressure in the main oil chamber, which not only increases the troubleshooting cycle and cost , and seriously affected the mission and safety of the helicopter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] During the working process of the main reducer of a certain type of helicopter, the instrument parameters show that the pressure in the main oil chamber is high, and the fault location steps are as follows:

[0021] (1) Check the temperature of the main reducer tank and casing: the temperature of the oil pool or casing is high;

[0022] (2) Check the main reducer pipeline and nozzle: normal; check the area prone to oil storage: no oil stirring;

[0023] (3) Check the position of the pressure regulating valve of the lubricating oil pump, and the position is reasonable;

[0024] (4) Check the internal parts of the main reducer: there is wear and tear;

[0025] (5) According to the cause of the failure, find out the wear position (it is found to be the wear of the gasket under the main minus planet), repair or replace the parts, and repair the failure.

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PUM

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Abstract

The invention relates to a positioning method for a main oil cavity high-pressure failure cause of a helicopter main reducing gear. By judging the position of a failure, analysis and inspection are conducted pertinently, and the overhaul and maintenance time is shortened through reasonable orders and steps. During practical work, the main oil cavity high-pressure failure cause of the helicopter main reducing gear is effectively found, the troubleshooting period is shortened, the troubleshooting cost is reduced, and the air safety is ensured.

Description

technical field [0001] The invention relates to a method for locating the fault cause of high pressure in a main oil chamber of a helicopter main reducer. Background technique [0002] Helicopter main reducer lubrication system usually adopts pressure lubrication system, which consists of six parts: energy device, control device, fuel injection device, auxiliary device, monitoring device and lubricant. When working, the lubricating oil pump sucks the oil out of the oil tank, passes through the radiator and oil filter, enters the oil pipeline, and then sprays the lubricating oil to each friction pair by different lubricating nozzles. While the friction pair is lubricated, the heat generated there is taken away by the lubricating oil, and the lubricating oil flows back to the oil tank by its own weight or the oil return pump, realizing circulating lubrication and cooling. [0003] With more than 50 years of technological development, my country has made certain achievements i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N29/00G01M13/02
CPCF16N29/00F16N2210/08G01M13/02
Inventor 欧阳可平徐海英冯磊那国雨李宏徐晶莹宁涛李远徐秀波曹立冬王伟斌
Owner HARBIN DONGAN ENGINE GRP
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