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...

Examples

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] This embodiment discloses a built-in connecting rod transmission mechanism of a non-pressure damper for mining. This connecting rod transmission mechanism is composed of a driving rocker 1, a driven rocker 6, a connecting rod, a rocker fulcrum shaft, a connecting rod fulcrum shaft, etc. . See attached for specific structure Figure 1-7 .

[0022] See figure 1 , figure 1 Shown is the connection structure of the transmission mechanism. The planar link mechanism 3 is mainly composed of a rocker, a connecting rod, a rocker fulcrum shaft, and a link fulcrum shaft. The rockers at both ends of the planar link mechanism 3 are active rocker 1 and The driven rocker 6, the external dimensions, structure and mode of action of the active rocker 1 and the driven rocker 6 are identical. When one air door is opened or closed, the other door leaf is also opened or closed in...

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...

Examples

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] This embodiment discloses a built-in connecting rod transmission mechanism of a non-pressure damper for mining. This connecting rod transmission mechanism is composed of a driving rocker 1, a driven rocker 6, a connecting rod, a rocker fulcrum shaft, a connecting rod fulcrum shaft, etc. . See attached for specific structure Figure 1-7 .

[0022] See figure 1 , figure 1 Shown is the connection structure of the transmission mechanism. The planar link mechanism 3 is mainly composed of a rocker, a connecting rod, a rocker fulcrum shaft, and a link fulcrum shaft. The rockers at both ends of the planar link mechanism 3 are active rocker 1 and The driven rocker 6, the external dimensions, structure and mode of action of the active rocker 1 and the driven rocker 6 are identical. When one air door is opened or closed, the other door leaf is also opened or closed in...

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