Gearbox lubricating system and lubricating oil flow control method of gearbox lubricating system

Abstract

The invention discloses a gearbox lubricating system. The system comprises an annular loop which is sequentially connected with a lubricating oil tank, an oil pump, a radiator and an electric controlreversing valve, wherein a through passage is further arranged between the oil pump and the control valve, and the through passage is arranged in parallel with the radiator; the system further comprises a PLC main controller, a first temperature sensor, a second temperature sensor, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor, the second temperature sensor, the first temperature sensor and the second temperature sensor are connected with the PLC main controller; the electric control reversing valve is connected with the PLC main controller, the control of an open precision of the electric control reversing valve is realized through the PLC main controller according to the monitoring data of the first temperature sensor, the second temperature sensor, the first temperature sensor and the second temperature sensor. The invention further discloses a lubricating oil flow control method of the gearbox lubricating system. According to the system and method, the PLC main controller is additionally arranged, the electric control reversing valve, the temperature sensors and pressure sensors are connected with the PLC main controller, wherein the service life and the precision control of the electric control reversing valve are relatively high, so that the service life and the intelligent control degree of the gear box lubricating system can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of gearbox lubrication, in particular to a gearbox lubrication system and a lubricating oil flow control method thereof. Background technique [0002] The gearbox is an important part of the wind turbine. The gearbox lubrication system provides lubrication for the bearings and gears in the gearbox to reduce wear, and at the same time take away the heat generated during the operation of the gearbox. After the lubricating oil is cooled by the radiator, Return to the gearbox to continue to provide lubrication for the bearings and gears to ensure the normal operation of the gearbox. [0003] At present, most of the common gearbox lubrication systems use temperature control valves to control the flow of lubricating oil into the radiator, such as a utility model patent (application number 201720350576. The disclosed technical content is: a temperature control valve circuit is used to control the flow of lubricati...

AI Technical Summary

Problems solved by technology

The opening of the one-way valve is controlled by the viscosity and flow resistance of the lubricating oil. Although the service life of the one-way valve in this system is longer than that of the temperature-controlled valve, it is still a passive mechanical opening, and the opening size of the one-way valve cannot be precisely controlled. The application of sensors in the lubrication system is less, and the degree of intelligence and automation is still low

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