Online monitoring method for lubricating oil of wind-power transmission

Abstract

Provided is an online monitoring method for lubricating oil of a wind-power transmission. The online monitoring method for the lubricating oil of the wind-power transmission comprises the following steps that performance analysis is carried out on a tribology system of a gear case of the wind-power transmission, and a comprehensive information monitoring method which is based on three aspects, namely an abrasion, a lubricating oil physical and chemical performance and pollution is proposed; an integral information monitoring system is established through testable analysis, and viscosity, water and an abrasive grain are adopted to be used as testable characteristics corresponding to the three classes of information of the abrasion, the lubricating oil physical and chemical performance and the pollution; by utilizing the embedded type integral sensor technology, real-time obtaining of the information is achieved; by adopting a TCP/IP network communication protocol, remote monitoring is achieved; a relation model of the abrasion, a lubrication oil product and the pollution are established, and inducements of the abrasion or lubricating malfunctions are speculated. Online perfect information obtaining is achieved, the analysis on origins of malfunctions is provided, the effective monitoring method for a running state of the gear case of the wind-power transmission is achieved, and according to positioning of an abrasive malfunction, an oil replacing suggestion and other maintaining suggestions, the important engineering significance for lowering the triology malfunction and prolonging the complete machine service life is achieved.

Description

technical field [0001] The invention belongs to the field of on-line monitoring of mechanical systems, and mainly relates to a comprehensive monitoring system for equipment wear and lubricating oil status, in particular to an on-line monitoring method for lubricating oil of a wind power transmission. Background technique [0002] As wind power has become a major energy strategy in my country, the requirements for the safety and reliability of wind turbines are higher. Due to the harsh weather environment and extreme load conditions, the wear failure of the transmission parts of the wind turbine transmission gearbox has become one of the main reasons for the shutdown of mechanical failures, and the resulting maintenance and replacement costs have greatly exceeded the wind turbine itself. the cost of. Therefore, the operating status monitoring and fault prediction of transmission components have become the technical competition points of the world's major wind turbine manufac...

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Problems solved by technology

[0007] Generally speaking, the single wear index monitoring technology has achieved good engineering results in the field of wind power monitoring, but for complex mechanical equipment at the same time, only the number and size of abrasive particles can only give the degree of wear severity, but cannot give the degree of lubrication. The decay degree of the agent performance and the wear mechanism, the wear location, and the cause of the wear failure

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