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Method for locating failure causes for main gearbox lubrication systems in helicopters

A technology for the main reducer and the cause of failure, which is applied in the direction of engine lubrication, lubricating parts, mechanical equipment, etc., can solve problems such as prone to misunderstanding, increase troubleshooting cycle and cost, and cannot accurately locate the cause of the failure, so as to reduce the exhaust Reduce the cost of troubleshooting, reduce the troubleshooting cycle, and quickly and easily find the effect

Inactive Publication Date: 2013-04-24
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] In the process of troubleshooting, technicians have no 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 fault. This not only increases the troubleshooting cycle and cost, but also seriously affects the helicopter. flight mission

Method used

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Examples

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Effect test

Embodiment

[0034] When the main reducer of a certain type of helicopter is tested on the ground, the instrument parameters show that the pressure in the main oil chamber is low, and the fault location steps are as follows:

[0035] (1) Record the abnormal monitoring instrument parameters, the abnormal monitoring instrument parameters are mainly low pressure in the oil chamber;

[0036] (2) Determine the state of the main reducer: the main reducer is carried out in the ground test;

[0037] (3) Check the pressure behind the lubricating oil pump of the main reducer, which is lower than the normal value; check the pipeline and radiator, and there is no leakage in the pipeline and radiator; check the rationality of the clearance of the lubricating oil pump and the position of the pressure regulating valve, all are normal ; Then it can be determined that the low pressure of the main oil chamber is caused by insufficient oil absorption of the main reducer or leakage of the main reducer pipelin...

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Abstract

The invention relates to a method for locating failure causes for main gearbox lubrication systems in helicopters. Checking direction and steps are determined by monitoring instrument parameters, and failure causes are located quickly and conveniently, so that failure of a lubrication system is eliminated quickly. The method is evidently effective in practical application and can be used to effectively locate failure causes for the main gearbox lubrication systems in helicopters, troubleshooting cycle is shortened and troubleshooting cost is lowered.

Description

technical field [0001] The invention relates to a method for locating the fault cause of a lubrication system of a main reducer of a helicopter. 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 in the fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N29/00
Inventor 欧阳可平徐海英李宏冯磊徐晶莹
Owner HARBIN DONGAN ENGINE GRP
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