A wind door device for underground coal mine

Abstract

The present invention discloses a coal mine underground damper device, including an auxiliary closing component, a damper linkage component, a damper door frame, a central damper, a side damper and a driving motor. The present invention relates to the technical field of coal mine dampers, and specifically refers to a coal mine underground damper device; in order to solve the technical problem that the existing coal mine dampers are difficult to overcome the large wind force underground when closed, the present invention proposes an auxiliary closing component, which can help the central damper and the side damper maintain a closed state when they are closed, and improve the closing effect of the coal mine underground damper. The motion closed loop that can switch between hard and soft states enables the present invention to cope with the two states of the damper being opened and closed, making the present invention more applicable.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine air doors, and in particular refers to an underground coal mine air door device. Background Art

[0002] In the existing coal mines, in order to ensure ventilation inside the coal mines and facilitate the entry and exit of pedestrians and materials, people have designed a double-channel damper structure underground in the coal mines, so as to realize normal and orderly excavation operations in the coal mines. The existing damper structure adopts pneumatic control and can realize automatic closing, which brings great convenience to people's entry and exit. However, when the damper is closed, due to the large wind force accumulated in the mine, the closing effect of the coal mine damper is not good, and it is difficult to maintain its state stably when the damper is closed. Therefore, it is urgent to design a linkage damper in the coal mine to solve the above problems. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a coal mine underground air door device, which effectively solves the problem that the existing coal mine air door device is difficult to overcome the strong wind force underground and difficult to maintain its state stably when closed.

[0004] The technical solution adopted by the present invention is as follows: The present invention provides a coal mine underground damper device, including an auxiliary closing component, a damper linkage component, a damper door frame, a central damper, a side damper and a drive motor, the body of the drive motor is arranged at the bottom of the damper door frame, the central damper is arranged between the damper door frames by rotating through an axis, the side dampers are arranged between the damper door frames by rotating through an axis, the auxiliary closing component is arranged between the central damper and the side dampers, and the damper linkage component is arranged on the central damper and the side dampers.

[0005] Preferably, the auxiliary closing component includes a motion closing ring, a surrounding support rod, an internal annular cavity, an electrorheological fluid, a U-shaped support frame, a control mounting plate, a control button and a movable cross bar, the control mounting plate is arranged on one side of the side air door, the control button is arranged on the control mounting plate, the movable cross bar is fixed to one side of the central air door, the U-shaped support frame is fixed to the side air door, the surrounding support rod is fixed in the U-shaped support frame, the motion closing ring passes through the surrounding support rod and can rotate around the surrounding support rod, the internal annular cavity is arranged in the motion closing ring, and the side of the internal annular cavity is also provided with a parallel plate capacitor surrounding the array, and the electrorheological fluid is evenly filled in the internal annular cavity.

[0006] Furthermore, the damper linkage assembly includes a center linkage rocker, a side linkage rocker, a connecting rocker, a hinge point one and a hinge point two, the center linkage rocker is fixedly connected to the top of the shaft of the center damper at its center point, the side linkage rocker is fixedly connected to the top of the shaft of the side damper at its one end, the hinge point one is arranged at one end of the center linkage rocker, the hinge point two is arranged at the other end of the center linkage rocker, and the connecting rocker is hinged between the center linkage rocker and the side linkage rocker through the hinge point one and the hinge point two respectively.

[0007] The control button and the parallel plate capacitor are electrically connected, and the parallel plate capacitors are arranged opposite to each other in pairs.

[0008] Among them, the motion closing ring is made of soft rubber material.

[0009] Furthermore, the output end of the driving motor is connected to the shaft of the central damper.

[0010] Furthermore, the movable crossbar contacts the control button when moving.

[0011] Furthermore, two groups of side dampers are provided.

[0012] Furthermore, two groups of side-linked rockers are provided, and the positions of the two groups of side-linked rockers are staggered at 180 degrees.

[0013] Wherein, two groups of connecting swing rods are provided.

[0014] When the moving cross bar contacts the control button, a gap is left between the moving cross bar and the motion closed loop.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: This solution provides a coal mine underground air door device, which effectively solves the problem that the existing coal mine air door is difficult to overcome the strong wind force underground and difficult to maintain its state stably when closed. This method brings the following advantages:

[0016] In order to solve the technical problem that the existing coal mine air is difficult to overcome the large wind force underground when closing, the present invention proposes an auxiliary closing component. When the central air door and the side air door are closed to each other through the air door linkage component, in this process, the moving cross bar just moves and lifts the motion closing ring upward, so that the motion closing ring moves upward around the surrounding support rod. At this time, the moving cross bar moves from the outside of the motion closing ring to the side close to the control installation plate. After the moving cross bar moves to the other side of the motion closing ring, the motion closing ring descends and resets accordingly. When the central air door and the side air door are parallel to each other, the moving cross bar just presses the control button, so that the internal circuit is triggered, so that the parallel plate capacitors begin to discharge, and the electrorheological fluid is converted into a solid, so that the motion closing ring is also in a hard state. At this time, the hard motion closing ring can limit the moving cross bar from moving in the direction away from the control installation plate. When the central air door and the side air door are closed, it can help them maintain a closed state, thereby improving the closing effect of the air door in the coal mine.

[0017] When it is necessary to open the central air door and the side air door, the driving motor is controlled again so that the central linkage rocker drives the side linkage rocker to rotate in opposite directions through the connecting rocker rod, so that the central air door and the side air door are staggered with each other, and then the moving cross bar leaves the control button, so that the internal circuit is disconnected, and the electrorheological fluid instantly returns to a liquid state. At this time, the central air door and the side air door continue to rotate, and the moving cross bar can lift the soft motion closed loop and move it away from the control mounting plate, so that the central air door and the side air door can be opened freely. The motion closed loop that can switch between hard and soft states enables the present invention to cope with the two states of opening and closing of the air door, making the present invention more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a coal mine underground air door device provided by the present invention;

[0019] Figure 2 A schematic diagram of the central air door and the side air door provided by the present invention when they are open;

[0020] Figure 3 A schematic diagram of the central air door and the side air door provided by the present invention in a closed state;

[0021] Figure 4 A top view of a coal mine underground air door device provided by the present invention;

[0022] Figure 5 It is a schematic diagram of the state of the auxiliary closing component when the moving cross bar is located outside the motion closing loop;

[0023] Figure 6 A cross-sectional view of the auxiliary closure assembly provided by the present invention;

[0024] Figure 7 A top view of the auxiliary closing assembly when the moving crossbar is located on a side close to the control mounting plate;

[0025] Figure 8 for Figure 6 A partial enlarged view of part A.

[0026] Among them, 1. Auxiliary closing component, 2. Air door linkage component, 3. Air door frame, 4. Center air door, 5. Side air door, 6. Driving motor, 7. Motion closing ring, 8. Surrounding support rod, 9. Internal annular cavity, 10. Electrorheological fluid, 11. U-shaped support frame, 12. Control mounting plate, 13. Control button, 14. Moving cross bar, 15. Parallel plate capacitor, 16. Center linkage rocker, 17. Side linkage rocker, 18. Connecting rocker, 19. Hinge point one, 20. Hinge point two.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1-Figure 3 As shown, the present invention provides an underground damper device in a coal mine, comprising an auxiliary closing component 1, a damper linkage component 2, a damper door frame 3, a central damper 4, a side damper 5 and a driving motor 6, wherein the body of the driving motor 6 is arranged at the bottom of the damper door frame 3, the central damper 4 is arranged between the damper door frames 3 by rotating through an axis, the side dampers 5 are arranged between the damper door frames 3 by rotating through an axis, the auxiliary closing component 1 is arranged between the central damper 4 and the side dampers 5, and the damper linkage component 2 is arranged on the central damper 4 and the side dampers 5.

[0031] like Figure 5-Figure 8As shown, the auxiliary closing component 1 includes a motion closing ring 7, a surrounding support rod 8, an internal annular cavity 9, an electrorheological fluid 10, a U-shaped support frame 11, a control mounting plate 12, a control button 13 and a movable cross bar 14. The control mounting plate 12 is arranged on one side of the side damper 5, the control button 13 is arranged on the control mounting plate 12, the movable cross bar 14 is fixedly connected to one side of the central damper 4, the U-shaped support frame 11 is fixedly connected to the side damper 5, the surrounding support rod 8 is fixedly connected to the U-shaped support frame 11, the motion closing ring 7 passes through the surrounding support rod 8 and can rotate around the surrounding support rod 8, the internal annular cavity 9 is arranged in the motion closing ring 7, and the side of the internal annular cavity 9 is also provided with a parallel plate capacitor 15 surrounding the array, and the electrorheological fluid 10 is evenly filled in the internal annular cavity 9.

[0032] like Figure 2-Figure 4 As shown, the damper linkage assembly 2 includes a center linkage rocker 16, a side linkage rocker 17, a connecting rocker 18, a hinge point 19 and a hinge point 20. The center linkage rocker 16 is fixedly connected to the top of the shaft of the center damper 4 at its center point, and the side linkage rocker 17 is fixedly connected to the top of the shaft of the side damper 5 at one end. The hinge point 19 is arranged at one end of the center linkage rocker 16, and the hinge point 20 is arranged at the other end of the center linkage rocker 16. The connecting rocker 18 is hinged between the center linkage rocker 16 and the side linkage rocker 17 through the hinge point 19 and the hinge point 20 respectively.

[0033] like Figure 5-Figure 8 As shown, the control button 13 and the parallel plate capacitor 15 are electrically connected, the parallel plate capacitors 15 are arranged opposite to each other in pairs, and the motion closed loop 7 is made of soft rubber material.

[0034] like Figure 2 As shown, the output end of the driving motor 6 is connected to the shaft of the central damper 4 .

[0035] like Figure 5-Figure 8 As shown, the moving crossbar 14 contacts the control button 13 when moving.

[0036] like Figure 1 As shown, the side dampers 5 are provided in two groups.

[0037] like Figure 3-Figure 4 As shown, there are two groups of side connecting rockers 17, the positions of the two groups of side connecting rockers 17 are staggered at 180 degrees, and there are two groups of connecting rocker rods 18.

[0038] like Figure 5-Figure 6 As shown, when the moving cross bar 14 contacts the control button 13 , a gap is left between the moving cross bar 14 and the motion closed loop 7 .

[0039] When in use, when the central air door 4 and the side air door 5 are closed to each other through the air door linkage assembly 2, the driving motor 6 is started, so that the central linkage rocker 16 drives the side linkage rocker 17 to rotate through the connecting rocker 18, so that the central air door 4 and the side air door 5 are gradually parallel and closed to each other. In this process, the moving cross bar 14 just moves and pushes the motion closed ring 7 upward, so that the motion closed ring 7 moves upward around the surrounding support rod 8. At this time, the moving cross bar 14 moves from the outside of the motion closed ring 7 to the side close to the control mounting plate 12, and the moving cross bar 14 moves to the motion closed ring 7. After the other side of the moving closed loop 7 is reached, the moving closed loop 7 is lowered and reset. When the central damper 4 and the side damper 5 are parallel to each other, the moving crossbar 14 just presses the control button 13, so the internal circuit is triggered, so that the parallel plate capacitors 15 begin to discharge, and the electrorheological fluid 10 is converted into a solid, so that the moving closed loop 7 is also in a hard state. At this time, the hard moving closed loop 7 can limit the moving crossbar 14 from moving away from the control mounting plate 12. When the central damper 4 and the side damper 5 are closed, they can help them maintain a closed state, thereby improving the closing effect of the dampers in the coal mine.

[0040] When it is necessary to open the central damper 4 and the side damper 5, the driving motor 6 is controlled again so that the central linkage rocker 16 drives the side linkage rocker 17 to rotate in opposite directions through the connecting rocker rod 18, so that the central damper 4 and the side damper 5 are staggered with each other, and then the moving cross bar 14 leaves the control button 13, so that the internal circuit is disconnected, and the electrorheological fluid 10 instantly returns to a liquid state. At this time, the central damper 4 and the side damper 5 continue to rotate, and the moving cross bar 14 can lift the soft motion closed loop 7 and move it away from the control mounting plate 12, so that the central damper 4 and the side damper 5 can be opened freely. The motion closed loop 7 that can switch between hard and soft states enables the present invention to cope with the two states of opening and closing of the damper, and has a wider range of applications.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0043] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A damper device for underground coal mine, characterized in that: The invention comprises an auxiliary closing component (1), a damper linkage component (2), a damper door frame (3), a central damper (4), a side damper (5) and a driving motor (6); the body of the driving motor (6) is arranged at the bottom of the damper door frame (3); the central damper (4) is arranged between the damper door frames (3) by means of an axis rotation; the side damper (5) is arranged between the damper door frames (3) by means of an axis rotation; the auxiliary closing component (1) is arranged between the central damper (4) and the side damper (5); the damper linkage component (2) is arranged on the central damper (4) and the side damper (5); the auxiliary closing component (1) comprises a moving closed ring (7), a surrounding support rod (8), an internal annular cavity (9), an electrorheological fluid (10), a U-shaped support frame (11), a control mounting plate (12), a control button (13) and a moving cross bar (14); the control mounting plate (12) is arranged on one side of the side damper (5); The control button (13) is arranged on the control mounting plate (12), the moving cross bar (14) is fixedly connected to one side of the central damper (4), the U-shaped support frame (11) is fixedly connected to the side damper (5), the surrounding support rod (8) is fixedly connected to the U-shaped support frame (11), the motion closed ring (7) passes through the surrounding support rod (8) and can rotate around the surrounding support rod (8), the internal annular cavity (9) is arranged in the motion closed ring (7), and the side of the internal annular cavity (9) is also provided with a parallel plate capacitor (15) in a surrounding array, the electrorheological fluid (10) is arranged in the internal annular cavity (9), the control button (13) and the parallel plate capacitor (15) are electrically connected, and the parallel plate capacitors (15) are arranged opposite to each other in pairs, the motion closed ring (7) is made of soft rubber material, and the moving cross bar (14) contacts the control button (13) when moving.

2. A coal mine underground air door device according to claim 1, characterized in that: The damper linkage assembly (2) comprises a central linkage rocker (16), a side linkage rocker (17), a connecting rocker (18), a hinge point one (19) and a hinge point two (20); the central linkage rocker (16) is fixedly connected to the top of the shaft of the central damper (4) at its central point; the side linkage rocker (17) is fixedly connected to the top of the shaft of the side damper (5) at one end; the hinge point one (19) is arranged at one end of the central linkage rocker (16); the hinge point two (20) is arranged at the other end of the central linkage rocker (16); and the connecting rocker (18) is hinged between the central linkage rocker (16) and the side linkage rocker (17) via the hinge point one (19) and the hinge point two (20), respectively.

3. A coal mine underground air door device according to claim 2, characterized in that: The output end of the driving motor (6) is connected to the shaft of the central damper (4).

4. A coal mine underground air door device according to claim 3, characterized in that: The side dampers (5) are provided in two groups.

5. A coal mine underground air door device according to claim 4, characterized in that: The side-linked rocker bars (17) are provided in two groups, and the positions of the two groups of side-linked rocker bars (17) are staggered at 180 degrees.

6. A coal mine underground air door device according to claim 5, characterized in that: The connecting rocker rods (18) are provided in two groups.

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