Auxiliary electric motor special for wind power, bearing grease adding method of electric motor and wind power unit

Abstract

The invention discloses an auxiliary electric motor special for wind power.The auxiliary electric motor comprises a rotating shaft, a bearing, an external bearing cover, an end cover and an internal bearing cover; the bearing is installed on the rotating shaft in a sleeving mode, the internal bearing cover and the external bearing cover are arranged on the inner side and the outer side of the bearing respectively, and the end cover is installed on the external circle of the bearing in a sleeving mode; a grease storage space containing a grease adding channel and a grease discharging channel is formed by the external bearing cover, the end cover and the internal bearing cover in an enclosing mode.The invention further discloses a bearing grease adding method of the auxiliary electric motor special for the wind power.When lubricating grease is initially loaded and the lubricating grease is added again in a wind field, grease adding is conducted when the electric motor rotates.The invention further discloses a wind power unit containing the auxiliary electric motor special for the wind power.By means of the auxiliary electric motor special for the wind power, the bearing grease adding method of the electric motor and the wind power unit, the use requirements of the wind-power auxiliary electric motor on the long guarantee period and high reliability are guaranteed, the special use requirement in the wind field is met, and the auxiliary electric motor special for the wind power is suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a special auxiliary motor for wind power, its bearing greasing method and a wind power unit. Background technique [0002] The installed capacity of clean energy wind turbines is increasing year by year, and the technology of components supporting wind turbines is also becoming more mature and reliable. However, the wind power auxiliary motors matched with each subsystem of the wind turbine include the pitch motor matched with the pitch system of the wind turbine, the yaw motor matched with the yaw system of the wind turbine, and the cooling motor matched with the main generator cooler of the wind turbine. Cooling motors, etc., technology and reliability need to be improved. [0003] Because the wind power auxiliary motors matched with the wind turbine subsystem have relatively small power, generally below 15kW, and the center height of the motor is below 180mm. Most motor su...

AI Technical Summary

Problems solved by technology

Some motor suppliers can only guarantee the motor within the 5-year warranty period. If the motor has a quality problem, it will be replaced and installed free of charge. The cost of the motor, labor costs, travel expenses, and wind power owners’ electricity damage due to shutdowns make small motor suppliers overwhelmed.

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