Transmission sealing structure of hard alloy mixing stirrer

The utility model belongs to the technical field of blender equipment, and particularly relates to a hard alloy mixing blender transmission sealing structure which comprises a shaft sleeve, a connecting pipe arranged at the top of the shaft sleeve, internal threads arranged on the inner wall of the connecting pipe, a shaft cover arranged at the top of the connecting pipe, a sealing ring arranged on the inner circumference of the shaft cover and a sealing ring arranged in the middle of the shaft sleeve. A sealing inner ring is arranged on the inner circumference of the sealing ring, threaded rods are arranged on the two sides of the sealing ring, a spring is arranged at the bottom of the sealing ring, and a fixing plate is arranged on the other side of the spring. The transmission shaft is sealed through the sealing ring, then the threaded rod is rotated, the sealing ring is extruded by the threaded rod to stably connect the sealing inner ring and the transmission shaft for sealing, and the effect of good seal