SEALED FURNACE ROLLER ASSEMBLY FOR FULL-HYDROGEN ROLLER-HEARTH FURNACE

摘要

A sealed furnace roller assembly for a full-hydrogen roller-hearth furnace, comprising a furnace roller (2), a driving member (3) used for driving the furnace roller (2) to rotate around its own axis, and a sealing assembly (4). The furnace roller (2) comprises a hollow roller body (20) located in a heat treatment furnace (1), roller sleeves (21) extending to the outside of the furnace from the two ends of the roller body (20) and having the outer diameters gradually reduced, and roller shafts (22) respectively connected to the ends of the roller sleeves (21) away from the roller body (20) and rotatably disposed on side walls of the heat treatment furnace (1); one of the roller shafts (22) passes out of the heat treatment furnace (1) from one end to be connected to the driving member (3); a connection end between each roller sleeve (21) and the roller body (20) covers the periphery of the roller body (20) to form a stop portion (2a); a workpiece transfer area is formed between the stop portions (2a) at the two ends of the roller body (20), and the workpiece transfer area is located between the inner walls of the heat treatment furnace (1) on the corresponding opposite sides. Heat conduction from the furnace roller (2) to the outside of the furnace, heat energy loss, the weight of the furnace body itself, and the probability of bending and deformation are reduced, and the life of the furnace roller is prolonged; moreover, collision or friction between a workpiece and the inner wall of the heat treatment furnace (1) is prevented.