Mine non-pressure air door linkage transmission mechanism

Abstract

A connecting rod transmission mechanism for a non-pressure damper for mining. A planar link mechanism is installed inside the upper horizontal frame of the non-pressurized damper. Composition, the rocker is set at both ends of the plane linkage mechanism, and the two rockers are respectively connected with the fulcrum shaft of the rocker; the connecting rod connects the two rockers as a whole through the fulcrum shaft of the connecting rod; Rotating parts at both ends of the upper horizontal frame of the air door fix the plane linkage mechanism inside the upper horizontal frame of the non-pressure air door to form a built-in linkage transmission mechanism. When any one of the two leaves of the non-pressure air door is opened or closed, the other door leaf can be opened or closed synchronously and in different directions through the built-in transmission mechanism. The invention has the advantages of novel and practical structure, flexible opening, small volume and small occupied space, and is suitable for underground use in coal mines.

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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