| 摘要 |
PROBLEM TO BE SOLVED: To provide a transporting roller supporting device for a heating furnace capable of improving durability of a bearing rotatably supporting a supporting shaft for supporting a transporting roller. SOLUTION: In the transporting roller supporting device 6, the first supporting plate 68 of a bearing device 66 rotatably supporting the supporting shaft 20 supporting an end of the transporting roller 16 includes a cooling passage 110 having a pair of input side passage 104 and an output side passage 106 formed in the longitudinal direction of the first supporting plate 68, and a plurality of communication passages 108 communicating with a relatively small flow cross section between the input side passage 104 and the output side passage 106, between first ball bearings 76. As the first supporting plate 68 is directly cooled, heating by a high temperature gas is alleviated with respect to the plurality of the first ball bearings 76 of the bearing device 66, and durability of the bearing device 66 is improved. Sticking of the bearing device 66 is prevented, and maintenance and inspection work of the bearing device 66 is reduced. COPYRIGHT: (C)2010,JPO&INPIT |
