Mine tunnel arc changing air door
A technology of roadway and damper, which is applied in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc., can solve the problems of collision accident, personal injury, inconvenient maintenance and installation, etc., to reduce damage, easy to replace, structural simple effect
Inactive Publication Date: 2011-06-08
KUNMING UNIV OF SCI & TECH
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Problems solved by technology
At present, mine roadway dampers are made of relatively rigid materials such as steel and wood, and because most of the underground roadways are responsible for the transportation of ore, personnel, and materials, when the transportation equipment passes through the damper facility, it is usually opened and closed by an automatic control system However, when the control system fails, impact accidents often occur, resulting in damage to the damper and personal injury; and the underground environment is poor, the damper is prone to failure, and maintenance and installation are very inconvenient
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[0013] see figure 1 , 2 and 3. The roadway walls 4 on both sides are respectively provided with two upper and lower guide rails 3 along the direction of the roadway 5, which are not only used as the support of the arc door leaf 1, but also as the sliding track for the arc door leaf to expand or recover. There is a slider 6, and the arc door leaf 1 is hinged with the slider 6 through a hinge shaft. The inner side of the concave surface of the arc door leaf 1 (that is, on the side of the roadway wall 4) is provided with 7 pairs of tension spring connection points (rings or hooks can be used). form), in order to install the tension spring 2 that adjusts the rigidity of the arc panel door leaf. The rigidity and flexible structural characteristics of the door leaf 1 are provided by the plate material of the door leaf 1 , the stiffness of the tension spring 2 and the hinged structure of the door leaf 1 and the guide rail slider 6 .
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The invention relates to a mine tunnel air door, especially a mine tunnel variable camber air door, belonging to the field of mime ventilation adjustment and control. The structure of the air door is that a guide rail is arranged on the tunnel wall along the tunnel direction, the door leaf of the air door is a rectangle bending camber elastic board, the rectangle long edge of the door leaf is in the same direction of the tunnel, the short edge is connected with the guide rail through sliding revolute joint, and the protruding cambers of the two door leaves are facing to each other. The invention is simple in structure, not only can satisfy the requirement of air quantity control, but also can eliminate the safety hidden trouble of impact accident, and can realize safety essentially.
Description
technical field [0001] The invention relates to a damper for a mine roadway, in particular to a variable arc damper for a mine roadway, which belongs to the field of mine ventilation regulation and control. Background technique [0002] Good ventilation is a decisive factor in ensuring the air quality in underground mining mines. The damper can be used as a regional air regulating facility in the mine ventilation control system. Its main function is to adjust the ventilation resistance of the roadway to control the air volume in the corresponding area. At present, mine roadway dampers are made of relatively rigid materials such as steel and wood, and because most of the underground roadways are responsible for the transportation of ore, personnel, and materials, when the transportation equipment passes through the damper facility, it is usually opened and closed by an automatic control system Damper, but in the case of failure of the control system, collision accidents ofte...
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IPC IPC(8): E21F1/10
Inventor 李心一戴晓江李昱东
Owner KUNMING UNIV OF SCI & TECH