Low-temperature furnace door lifting mechanism and using method thereof

Abstract

The invention provides a low-temperature furnace door lifting mechanism and a using method thereof. The mechanism comprises a furnace door, a furnace door frame and a motor, and further comprises a pressing device, wherein the furnace door frame is erected in front of the furnace door, two ends of the pressing device are fixedly connected with the furnace door and the furnace door frame respectively, the motor is arranged at the top of a furnace body, a motor output shaft is connected with a driving gear, driven gears are symmetrically installed on two sides of the top of the furnace body, thedriving gear is connected with the driven gears on the two sides through transmission shafts, racks are symmetrically and fixedly arranged on two sides of the furnace door frame and meshed with the driven gears, linear guide rails are arranged on two side edges of the furnace body, and sliding blocks matched with the linear guide rails are fixedly arranged on the furnace door frame. The mechanismis advantaged in that motor gear rack type is adopted, the gears and the racks are tightly meshed, precision is high, lifting is stable, and noise is low; the linear guide rails are matched for use,so lifting stability and position precision are ensured; the independently designed furnace door pressing part adopts an air cylinder type, is simple and easy to operate, is matched with a pressing guide device for use, and is high in pressing position precision and better in the sealing effect.

Description

technical field [0001] The invention belongs to the technical field of low-temperature furnaces, and in particular relates to a mechanism for raising and lowering a furnace door of a low-temperature furnace and a method for using the same. Background technique [0002] The most common lifting structure of the heating furnace door device, most of them use motor wire rope and motor sprocket chain structure to pull the furnace door and cylinder open furnace door. The wire rope structure is simple and easy to operate, and the manufacturing cost is low; Large, loud noise, counterweight is needed when necessary, high failure rate, poor sealing effect due to the weight of the furnace door itself, which will cause heat loss in the furnace and cold air into the furnace. After a period of use, the furnace mouth will deform a lot , the heat loss in the furnace is serious, and the service life of the equipment is reduced. Due to the deformation of the furnace door, the smoke in the fur...

AI Technical Summary

Problems solved by technology

[0002] The most common lifting structure of the furnace door device of the heating furnace is mostly the motor wire rope and the motor sprocket chain structure to pull the furnace door and the cylinder open furnace door. The wire rope structure is simple and easy to operate, and the manufacturing cost is low; Large, loud noise, counterweight is needed when necessary, high failure rate, poor sealing effect due to the weight of the furnace door itself, which will cause heat loss in the furnace and cold air into the furnace, and after a period of use, the furnace mouth will deform a lot , the heat loss in the furnace is serious, and the service life of the equipment is reduced

Due to the deformation of the furnace door, the smoke in the furnace is scattered into the workshop, which affects the health of workers and the appearance is not beautiful

The cylinder type has less noise than the wire rope type, the lifting is stable, and the sealing effect is slightly better, but it is prone to failure and inconvenient maintenance

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