Mine air fan protection hood

Abstract

The invention provides a mine air fan protection hood and discloses a protection hood device which is installed on an air fan, is capable of opening and closing following the running state of the airfan and performs protection on the air fan. The mine air fan protection hood does not need to be disassembled, does not occupy the working space and is capable of opening and closing automatically according to the running state of the air fan, and the protection effect on the air fan is effectively improved. The mine air fan protection hood is characterized in that a fixed plate is arranged insideone end of a main body tube, the two ends of the fixed plate are connected with the inner wall of the main body tube correspondingly, a fixed ring is arranged on the center portion of the fixed plate, a connection plate is arranged inside the fixed ring through a fixed bearing, the connection plate is of an annular plate-shaped structure, one side of the connection plate is provided with a magnetpiece, a rotating sleeve is arranged inside the main body tube, one end of the rotating sleeve is connected with the middle of the other side of the connection plate, the inner wall of the rotating sleeve is provided with threads, one end of a twist rod is arranged inside the rotating sleeve and is connected with the connection plate through a spring, the other end of the twist rod is arranged inside the main body tube, the twist rod is in thread coordination with the rotating sleeve, and the twist rod is provided with a plurality of sliding grooves.

Description

technical field [0001] The invention relates to a protective cover for a mine fan, which relates to a protective cover device used in coal mines to prevent dust from the mine fan, and belongs to the field of mining equipment. In particular, it relates to a protective cover device installed on a fan, which can be opened and closed following the running state of the fan to protect the fan. Background technique [0002] At present, in the field of coal mines, during underground operations, fans play an important role in underground ventilation, can effectively purify the working environment, and have a positive impact on the health of operators. Usually, the underground operating environment is poor, and the air contains a lot of dust and other pollutants. , The dust deposited on the fan affects its normal rotation. The dust deposited on the fan blades is blown away along the wind direction when the fan is started, polluting the working environment. Usually, when the motor stop...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of coal mines, during underground operations, fans play an important role in underground ventilation, can effectively purify the working environment, and have a positive impact on the health of operators. Usually, the underground operating environment is poor, and the air contains a lot of dust and other pollutants. , The dust deposited on the fan affects its normal rotation. The dust deposited on the fan blades is blown away along the wind direction when the fan is started, polluting the working environment. Usually, when the motor stops, in order to prevent dust from depositing on the fan blades, the traditional The best method is to use a cloth cover to cover the fan mouth, and then remove the cloth cover when using it. It is extremely inconvenient to store after dismantling, occupying the work space, and the use effect is not good

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