Oil filling device of gear case of wind driven generator

Abstract

The invention discloses an oil filling device of a gear case of a wind driven generator, comprising an oil storage tank, a hydraulic pump, a meter and an automatic controller, wherein an oil inlet of the hydraulic pump is connected with the oil storage tank through a pipeline, and an outlet of the hydraulic pump is connected with the gear case through a pipeline; and a quality meter is adopted as the meter and used for weighing the weight of the oil storage tank. The oil filling device overcomes the defects of influence of bubbles, temperature and viscosity on metering and can accurately control the oil filling amount; and in addition, the filled oil is metered by quality because the quality can further reflect the amount of substances compared with volume.

Description

technical field [0001] The invention relates to a lubricating system of a wind power generator, in particular to a quantitative oiling device for a gear box thereof. Background technique [0002] Gearboxes are the main components of doubly-fed and semi-direct drive fans. Gearbox failure is the most important failure form of fan failure, and tooth surface damage caused by gearbox lubrication failure accounts for a large probability of gearbox failure. Therefore, the quantitative addition and maintenance of gearbox lubricating oil is of great importance to the normal operation of the fan. very important meaning. [0003] During the final assembly of the fan, it is necessary to add lubricating oil to the gearbox. The amount of lubricating oil for each gearbox has an optimal value. If too little lubricating oil is added, the lubrication of the tooth surface will be insufficient, resulting in premature failure of the gearbox; if too much lubricating oil is added, it will not on...

AI Technical Summary

Problems solved by technology

[0005] Since the flowmeter is volumetric measurement, a large number of air bubbles generated when pumping oil will cause the reading of the flowmeter to be false

Moreover, due to the effect of thermal expansion and contraction, the volume of oil changes with temperature, and the readings of the flowmeter cannot truly reflect the quality of the oil.

[0006] Furthermore, due to the viscous nature of the lubricating oil, there will be a hysteresis effect after adding it to the gearbox, and it cannot be accurately displayed on the oil mark immediately, resulting in the inability to accurately refuel the gearbox quantitatively.

Images