Accurate oil injection device and method for gearbox of wind turbine generator

Abstract

The invention discloses an accurate oil injection device for a gear box of a wind turbine generator, which solves the technical problems of complicated oil injection operation, difficult oil injection, inaccurate metering and the like which influence the oil injection of the gear box in the prior art, and adopts the specific scheme that: the accurate oil injection device for the gear box of the wind turbine generator comprises a liquid supplementing pipeline, an injection pipeline, an electric control cabinet and a circulating heating liquid storage tank; the electric control cabinet and the circulating heating liquid storage tank are arranged adjacently; the circulating heating liquid storage tank is provided with an external pipeline; the external pipeline is communicated with the liquid supplementing pipeline and the injection pipeline through an electric control L-shaped three-way valve, wherein the injection pipeline and the external pipeline are mutually orthogonal and used for achieving switching between the liquid supplementing function and the injection function or between the injection function and the circulating heating function; a drain outlet is formed in the bottom of the cyclic heating liquid storage tank and used for discharging waste liquid; a liquid level sensor and a temperature sensor are arranged in the cyclic heating liquid storage tank and used for monitoring liquid level information and temperature of internal oil liquid; the electric control cabinet is provided with an HMI touch screen and a PLC control system and is used for setting different types and oil injection quantities of the oil injection wind turbine generators; and accurate oil injection is achieved through automatic control.

Description

technical field [0001] The invention relates to the technical field related to wind power generators, in particular to a device for accurately filling gear oil into a gear box of a wind power generator. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In the assembly and later operation and maintenance of wind turbines, gear oil filling is an extremely demanding process, which has many characteristics such as high filling accuracy, high filling cleanliness, and high maintenance cost. [0004] The inventors found that in the batch assembly production process of the unit production line and the oil filling process of the wind field, a small independent circulating oil filter is generally used for gear oil filling, and the weighing method or small barrel volume measurement method is generally used for measurement. During the filling process T...

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Problems solved by technology

[0004] The inventors found that in the batch assembly production process of the unit production line and the oil filling process of the wind field, a small independent circulating oil filter is generally used for gear oil filling, and the weighing method or small barrel volume measurement method is generally used for measurement. During the filling process There are disadvantages such as repeated unlucky operation, complicated weighing operation, and no data record of filling results. Especially for oil filling in wind farms, there are also limiting factors such as high-altitude transportation of oil products and low ambient temperature for filling. It is time-consuming and laborious to fill gear oil. Product filling cannot be measured, polluting the environment of the engine room, these have become acute problems restricting the operation and maintenance of wind farms

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