Novel furnace roller rapid replacing apparatus and replacing method thereof

Abstract

The invention discloses a novel furnace roller rapid replacing apparatus and a replacing method thereof. an operating side roller sleeve with an arc-shaped slide way stretches into the opening of a furnace shell and is fixed to a bearing seat at the operating side of the furnace shell through a bolt; a driving side roller sleeve stretches into the opening of the furnace shell and is fixed to a bearing seat at the driving side of the furnace shell through a bolt; a furnace roller to be mounted is raised, and the driving end of the furnace roller to be mounted is placed in the roller sleeve placed at the operating side and having the arc-shaped slide way; the furnace roller is pushed into a furnace, a positioning ring at the operating side is sleeved to the shaft neck of the operating end of the furnace roller and is sleeved into the chute of the roller sleeve at the operating side, a driving side positioning ring and a driving side furnace roller shaft head cannula take places, and a driving side supporting steel tube and a driving side furnace roller shaft head cannula stretch into the furnace and are sleeved on a furnace roller driving end shaft head; and the furnace roller is slowly pushed into the furnace, the driving side supporting steel tube, the driving side furnace roller shaft head cannula, the driving side positioning ring and the driving side roller sleeve are sequentially removed after the furnace roller takes place, and then the operating side positioning ring and the operating side roller sleeve are sequentially removed.

Description

technical field [0001] The invention relates to the technical field of continuous annealing furnaces, in particular to a novel furnace roller quick replacement device and method. Background technique [0002] Continuous annealing furnace is the most important equipment of silicon steel production line, furnace roller replacement is one of the most important tasks in annealing furnace maintenance. At present, there are three common methods for furnace roller replacement. Method 1: When changing rolls, 4 people on the operating side, 2 people in the furnace, and 3 people on the driving side cooperate at the same time, relying entirely on manpower to pull out the furnace rolls, and at the same time use the same method to install new rolls. This method takes a short time but operates The physical exertion of personnel is high, and the roller can only be changed when the furnace area is at normal temperature and the air in the furnace is unblocked. Method 2: Use the counterweig...

AI Technical Summary

Problems solved by technology

Method 1: When changing rolls, 4 people on the operating side, 2 people in the furnace, and 3 people on the driving side cooperate at the same time, relying entirely on manpower to pull out the furnace rolls, and at the same time use the same method to install new rolls. This method takes a short time but operates The physical exertion of personnel is high, and the roller can only be changed when the furnace area is at normal temperature and the air in the furnace is unblocked.

Method 2: Use the counterweight spreader to change the roll. When pulling out the roll, first hang the spreader on the crane, then use the counterweight adjustment motor to level the spreader beam, and move the crane to insert the shaft head into the spreader joint and fix it with bolts , adjust the counterweight of the spreader to make the furnace roll completely suspended, and then move the crane to pull out the furnace roll. When loading the roll, it happens to be the reverse process of the roll extraction process. This method consumes less physical strength for the roll changing operator, but it is very difficult for the crane operation technology and spreader adjustment. The technical requirements are high, and the time-consuming is equivalent to three times that of manual roll replacement, and it is impossible to change rolls in the blind area of ​​the crane

Method 3: Use the roll changing trolley to change the roll, move the roll changing trolley to the furnace roll replacement position when pulling out the roll, adjust the fixture up and down and move it to the operating side to insert the furnace roller shaft head into it, and then adjust the fixture position to completely suspend the furnace roller , and then pull out the furnace roll from the operating side. This method consumes the least amount of physical energy for the roll changing operator, but requires the most space on the driving side of the steel structure platform of the silicon steel continuous annealing furnace, which cannot be used in a workshop with a small space.

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