Online monitoring system for oil of gearbox of wind turbine generator

The invention relates to a wind turbine generator gearbox oil online monitoring system, which comprises a box body, and a gear pump, an oil quality data acquisition module, a metal abrasive particle data acquisition module, a power supply module and a data communication transmission module which are arranged in the box body, an inlet of the gear pump is connected with the oil inlet through an oil path, an oil outlet of the gear pump is connected with the oil outlet through an oil path, and the metal abrasive particle data acquisition module and the oil quality data acquisition module are respectively arranged on a pipeline between the gear pump and the oil outlet; the problems that the inspection period is too long and secondary oil pollution is prone to occurring in regular off-line detection of the gear oil are effectively solved, real-time on-line monitoring of the wind power gear oil is achieved, the abnormal problem of the gear oil is found in time and effectively solved, and then the purpose of effectiv