Sealing structure of bell-less top transmission gear box of blast furnace

The invention relates to a sealing structure of a bell-less top transmission gear box of a blast furnace. The sealing structure is used for sealing a swing groove formed in a rotating body, a swing arm is arranged in the swing groove, the sealing structure comprises a base plate, the base plate is horizontally arranged at the swing groove, an avoiding groove is formed in the base plate, the lengthdirection of the avoiding groove is the same as the swing direction of the swing arm, and the width of the avoiding groove is the same as the thickness of the swing arm; a first sliding rail is fixedly arranged on the base plate, the length direction of the first sliding rail is the same as the length direction of the avoiding groove, and a first sealing plate and a second sealing plate are slidably connected to the first sliding rail; and the first sealing plate and the second sealing plate are located at the two sides of the swing arm in the swing direction respectively and abut against theswing arm, and elastic pi