Bearing protection structure

The utility model relates to a bearing protection structure which achieves the purpose that a bearing rotating on a high-speed shaft is not impacted by pressure lubricating oil at high pressure. The bearing protection structure is composed of a bearing protection base, an inner boss and an outer boss, the inner boss and the outer boss are arranged on the bearing protection base and are of cylindrical structures, the outer boss is of a straight cylindrical structure, the inner boss is of a conical structure, an oil drainage hole is formed between the outer boss and the inner boss, and the oil drainage hole is communicated with an oil outlet of the bearing bush. During installation, the whole protection structure is arranged on the transmission shaft in a sleeving mode, the bearing protection base is fixedly installed on the bearing bush, a certain gap is reserved between the inner boss and the transmission shaft and used for circulation of lubricating oil, and the outer boss is in gapless fit with an engine oi