Vertical roll gearbox low-speed shaft sealing structure

The utility model discloses a vertical roll gearbox low-speed shaft sealing structure, and belongs to the technical field of vertical roll gearbox low-speed shaft structures. Comprising an oil supply structure arranged in a gear box, an oil throwing structure and an oil collecting cover, the oil throwing structure and the oil collecting cover are arranged outside the gear box, the oil supply structure is arranged at the top of a bearing chamber of the gear box, the oil throwing structure is installed on a rotating shaft corresponding to the gear box and located on the lower side of the bearing chamber, and the oil collecting cover covers the oil throwing structure. Lubricating oil flowing out of the bearing chamber downwards flows to the oil throwing structure on the lower portion and is thrown into the oil collecting cover under the action of centrifugal force. Compared with an existing framework seal or labyrinth seal, the sealing device is higher in functional stability, not prone to deformation, longer in