Lubricating device for electric spindle of power device

The utility model discloses a lubricating device for an electric spindle of a power plant, which relates to the technical field of electric spindles and comprises a protective cover, the inner side of the protective cover is rotatably connected with the electric spindle, the inside of the protective cover is slidably connected with a butt-joint column, and the inside of the butt-joint column is rotatably connected with a lubricating barrel. The lower end of the lubricating barrel penetrates through the lower side of the butt joint column and extends to the inner side of the protective cover, and the lower end of the lubricating barrel is rotationally connected to the interior of the protective cover. According to the electric spindle lubricating device for the power device, dripping of lubricating liquid can be operated conveniently, and the complexity that the lubricating liquid needs to be found and tools need to be used when most lubricating liquid is dripped traditionally is reduced; the timeliness of the