Rear furnace door device of quenching furnace

Abstract

The invention discloses a rear furnace door device of a quenching furnace. The rear furnace door device comprises a door frame arranged on the quenching furnace and a door body matched with the door frame, wherein the door body is arranged on the quenching furnace through an oscillating bar, the oscillating bar is in an L shape with a first arm and a second arm, the first arm and the second arm are fixedly connected in a manner that the end parts of the first arm and the second arm are vertical to each other, the other end of the first arm is hinged to the quenching furnace through a vertically arranged hinged shaft, the door body is arranged on the second arm, in the swinging process of the first arm in the horizontal plane, the door body is at least provided with a closed position and an opened position, packing is arranged along the door frame, when the door body is in the closed position, the door body is fixedly connected to the quenching furnace through a connecting assembly, and the packing is clamped between the door body and the door frame, and when the door body is in the opened position, the door body is separated from the quenching furnace and is suspended on the oscillating bar. The door body needs not to be lifted manually, the rear furnace door can be opened by operation of only one person, the operation risk is reduced, and the wear of the furnace door to the door frame is also reduced.

Description

technical field [0001] The invention relates to a rear furnace door device of a quenching furnace. Background technique [0002] The rear furnace door of the quenching furnace has a heavy weight, and its door body is fixed on the quenching furnace by multiple bolts around it. When repairing or maintaining the quenching furnace, the rear furnace door needs to be removed, which requires at least three It can only be completed by one person (one person removes the bolts and two people lift the door body), which is time-consuming, laborious and labor-intensive, and there is a quenching tank under the rear furnace door. Due to its own weight, the entry and exit of the rear furnace door will cause wear to the door frame. Contents of the invention [0003] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a furnace door device for a quenching furnace, which lifts the door body through a swing rod, and controls the door body ...

AI Technical Summary

Problems solved by technology

[0002] The rear furnace door of the quenching furnace is very heavy, and its door body is fixed on the quenching furnace by multiple bolts around it. When repairing or maintaining the quenching furnace , the rear furnace door needs to be removed, which requires at least three personnel (one to remove the bolts, two to lift the door body) to complete, time-consuming, laborious and labor-intensive, and the bottom of the rear furnace door is a quenching tank, dismantling the rear furnace door The longer it is, the more dangerous it is for personnel, and due to its own weight, the entry and exit of the rear furnace door will cause wear to the door frame

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