Device for discharging the waste lubricant of hearth roll for continuous annealing furnace

摘要

The present invention relates to a waste lubricating oil discharge device of the hearth roll for continuous annealing furnace, the cam unit consisting of an eccentric cam (11) attached to the rotating shaft 121 of the hearth roll 120 at the first accommodation space (a) side (10), the spool unit (40) provided with a spool (41) provided inside the receiving groove (30) orthogonal to the rotating shaft (121) so as to reciprocate up and down by the eccentric cam (11), and the first The first and second accommodation spaces (a) are rotated by the rotation of the screw (53) inserted into the communication hole (20) formed through the lower bearing block (134) to communicate the first and second accommodation spaces (a, b). The screw unit 50 is configured to discharge the waste lubricating oil introduced from the communicating inflow hole 21 into the second accommodation space b through the discharge hole 22 communicated with the second accommodation space b. To prevent the infiltration of waste lubricant into the annealing furnace, while not only prolonging the life of the bearing mechanism The overall cost of the oil chamber replacement work is reduced.