Connecting rod transmission mechanism with non-pressure air door for mine

Abstract

Provided is a connecting rod transmission mechanism with a non-pressure air door for a mine. A plane linkage mechanism is arranged inside an upper transverse frame of the non-pressure air door. The plane linkage mechanism is mainly composed of rockers, a connecting rod, rocker fulcrum shafts and a connecting rod fulcrum shaft. The rockers are arranged at the two ends of the plane linkage mechanism and are connected with the rocker fulcrum shafts. The connecting rod is connected with the two rockers as a whole through the connecting rod fulcrum shaft. The rocker fulcrum shafts penetrate through rotational components arranged at the two ends of the upper transverse frame of the non-pressure air door and fix the plane linkage mechanism inside the upper transverse frame of the non-pressure air door to form a built-in connecting rod transmission mechanism. When one door leaf of two door leaves of the non-pressure air door is opened or closed, the other door leaf can be simultaneously opened or closed in an opposite direction through the built-in connecting rod transmission mechanism. The connecting rod transmission mechanism with the non-pressure air door for the mine has the advantages of being novel and practical in structure, flexible in opening, small in volume and occupying space, and suitable for being used in an underground coal mine.

Description

technical field [0001] The invention relates to a damper transmission mechanism for a connecting lane between main air inlet and return lanes in underground coal mines, in particular to a built-in link transmission mechanism for a non-pressure damper for mines. Background technique [0002] At present, many domestic coal mines are deep and far away, and the ventilation volume needs to be continuously increased, so that the pressure difference between the front and back of the damper between the air inlet lane and the air return lane also increases accordingly. Therefore, non-pressure dampers are mostly used between the connection lanes between the coal mine return air lane and the main air inlet lane. That is to say, a damper is composed of two door leaves with equal area, and there is a connecting transmission device between the two door leaves to connect the two door leaves to each other. When one door leaf is opened or closed, the other door leaf is opened or closed in th...

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Problems solved by technology

[0003] In order to solve the existing technology, the two ends of the mechanical linkage mechanism are installed on the door leaf, and the two door leaves on the damper are connected together. The volume is large, and the lateral movement occupies a large space in the roadway, which limits the passage size of the damper, and must be installed on site. The problem of difficult debugging, the purpose of the invention is to overcome the shortcomings of the original non-pressure damper transmission mechanism, and provide a connecting rod transmission mechanism built into the door frame of the non-pressure damper, which is small in size and its lateral movement does not occupy the roadway space. , easy to use mining non-pressure damper with built-in link transmission mechanism

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