Solid particle monitoring, filtering and flushing system of wind power gearbox

Abstract

The invention discloses a solid particle monitoring, filtering and flushing system of a wind power gearbox. The solid particle monitoring, filtering and flushing system comprises the gearbox, a motorpump, a temperature sensor and a ball valve and is characterized in that the temperature sensor is connected with an oil suction filer through a pipeline, the oil suction filter is connected with a solid granularity detector through a pipeline, and the solid granularity detector is connected with a strong-magnetic solid particle filter through a pipeline; the strong-magnetic solid particle filteris connected with a flow sensor through a pipeline, and the flow sensor is connected with a flushing nozzle through a pipeline; and the flushing nozzle is mounted on the inner side of the gearbox. Thesolid particle monitoring, filtering and flushing system is simple in structure and unique in theory, solid particles of the gearbox can be effectively monitored and removed, and therefore the service life of the gearbox is prolonged.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pressure and lubrication, and in particular relates to a solid particle monitoring, filtering and flushing system of a wind power gearbox. Background technique [0002] As the main speed-increasing transmission equipment in wind power generating units, wind power gearboxes work under full load conditions for a long time, and various gears and other mechanical parts will produce a large amount of solid particles when they are worn out. Solid particles of different sizes will affect the gear box. Damage and oil contamination are different. On the one hand, when the gear is running, the oil containing solid particles will be brought to the contacting tooth surface, and a large force will be transmitted when the two gear surfaces are in contact. It will seriously damage the gear surface, and the solid particles dropped from the damaged gear surface will be mixed into the lubricating oil, causing a ...

AI Technical Summary

Problems solved by technology

On the one hand, when the gear is running, the oil containing solid particles will be brought to the contacting tooth surface, and a large force will be transmitted when the two gear surfaces are in contact. It will seriously damage the gear surface, and the solid particles falling from the damaged gear surface will be mixed into the lubricating oil, causing a vicious circle, thus accelerating the working life of the gear and other mechanical parts

On the other hand, the lubricating oil is easily deteriorated and deteriorated due to temperature, load changes, and foreign solid particles during use. The degree of wear of each component is such a vicious cycle. Due to the compact structure of the gearbox, the super-large solid particles accumulated in the gearbox for a long time, such as solid iron filings and aluminum filings, cannot be discharged out of the gearbox. These large particles are equivalent to grinding This phenomenon is very obvious in wind turbines that have been in operation for more than three years

Therefore, it is portable and effective to monitor and clear the solid particles in the lubricating oil of the gearbox, which can reduce gearbox failures and ensure the normal operation of the wind turbine. However, there is no separate device for filtering and washing solid particles in the wind turbine gearbox. device in

[0003] Chinese Patent Publication No. CN 105333119 A discloses a system for detecting the lubricating oil circuit of a wind power gearbox, including an oil pump, a temperature change adjustment system, connecting pipes, a wind power gearbox and an oil supply pool. The oil supply pool passes through The pipeline is connected to the oil pump, and the oil pump is connected to the temperature change regulation system through the pipeline. pool connection; the wind power gearbox includes a lubricating oil system and an oil temperature monitoring device connected thereto, the oil inlet of the lubricating oil system is connected to a connecting pipe through a pipeline, and the oil outlet of the oil temperature monitoring device Connected to the oil supply tank through the pipeline, although the above system can automatically read and record the temperature information of the oil separation temperature monitoring point of the lubricating oil circuit system through the oil temperature monitoring device, it cannot monitor the solid particles in the gearbox and clear

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