Transmission device for escape door of mine

Abstract

The invention relates to a transmission device for an escape door of a mine. The transmission device is characterized in that door planks of a butterfly door are fixedly arranged on a driving shaft and transmission shafts through longitudinal parts respectively, gears are arranged on the shafts respectively, the driving shaft is connected with a speed reducer and a motor after being equipped with the gear, a guiding support on which one side face of each gear is fixedly arranged is provided with a guiding groove, the rear part of a guiding rod is arranged in a plurality of guiding grooves in a movable fit way, the front side face of the guiding rod is equipped with a plurality of racks corresponding to the gears, each rack is meshed with the corresponding gear, and a gas concentration sensor and an electrical appliance control system which are connected are arranged on the door. Since the device adopts the gear and rack transmission mode, the transmission power is large, the speed is stable, the transmission precision is high, and the installation space is small; since the device is equipped with the gas concentration sensor, when the concentration of gas in a channel is high, the escape can be fast opened, so that the device has the advantages of being high in pressure relief speed, accurate in opening and closing, reusable and free of being replaced.

Description

technical field [0001] The invention relates to a ventilation switch safety device in a mine ventilation system, in particular to a transmission device for a mine escape door on an automatic switch safety escape device of a mine pipeline system. Background technique [0002] At present, the escape doors in the prior art generally use the principle of ordinary baffle opening and closing, and have been widely used in pipeline systems, but there are many obvious defects in it: for example, the transmission mechanism of the escape door is designed as a connecting rod pendulum structure, and this structure has switching Inaccurate, takes up a large installation space, wastes materials, and cannot be opened accurately when the pressure in the channel changes; when a mining accident occurs, the underground environment is very harsh, there may be gas leakage or explosion, and there may be a lot of dust in the air; When an explosion occurs, if the transmission mechanism cannot be sta...

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Problems solved by technology

[0002] At present, the escape doors in the prior art generally use the principle of ordinary baffle opening and closing, and have been widely used in pipeline systems, but there are many obvious defects in it: for example, the transmission mechanism of the escape door is designed as a connecting rod pendulum structure, and this structure has switching Inaccurate, takes up a large installation space, wastes materials, and cannot be opened accurately when the pressure in the channel changes; when a mining accident occurs, the underground environment is very harsh, there may be gas leakage or explosion, and there may be a lot of dust in the air; When an explosion occurs, if the transmission mechanism cannot be activated immediately to open the escape door, the escape door cannot be opened, which will directly affect the escape and rescue of the escape personnel.

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