Leather cup sealing structure

The utility model relates to an effective shafting leather cup sealing structure, which realizes the purpose of preventing leakage of sealing lubricating oil at a high-speed shaft end. The sealing structure is composed of a supporting sleeve, a leather cup and a spring. The supporting sleeve is of an annular structure with an L-shaped section and is consistent with the outer profile of the leathercup; the leather cup is of an annular structure with a U-shaped section in the axial direction and comprises an inner ring and an outer ring. Wherein the inner ring is matched with the gear shaft andfastened by the spring, and the outer ring is matched with the supporting sleeve; the supporting sleeve is in small clearance fit with the rotating shaft; the supporting device is used for supportingthe leather cup under the action of large pressure. The leather cup sealing structure has the advantages of being high in reliability, small in size, light in weight and simple in structure. 本实用新型涉及一种有效的轴系皮碗密封结构，实现在高速轴端密封滑油防止外