A mine tunnel ventilation detection mechanism

Abstract

The utility model discloses a mine tunnel ventilation detection mechanism, comprising a rectangular plate-shaped main body, wherein two groups of supporting devices are symmetrically arranged at the upper and lower ends of the main body, and the main body is fixed in the mine tunnel by the supporting devices, and a control panel is installed at the lower part of the side surface of the main body, and two movable grooves are symmetrically arranged in the middle part of the two side surfaces of the main body, and a plurality of through grooves are evenly arranged in the movable grooves, and the through grooves are divided into two groups symmetrically arranged on the left and right, and a fixed axis is fixedly arranged in the through grooves, and analysis and calculation are performed according to a program preset in a PLC controller, so as to calculate the wind force and wind direction at the position in the tunnel, so as to grasp the law of natural wind pressure in real time and perform calculation and simulation through a Ventsim mine three-dimensional ventilation simulation software system, which is conducive to quickly and conveniently selecting a fan model and an installation position, so as to ensure smooth ventilation in the mine tunnel and avoid the presence of harmful gases at local working sites to affect normal production.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tunnel ventilation detection, in particular to a mine tunnel ventilation detection mechanism. Background Art

[0002] In recent years, as the mining life of each mine continues to increase and the mining depth becomes deeper and deeper, the production conditions faced by the workers have become more complex. In particular, the ventilation resistance of deep mines is relatively large, resulting in poor ventilation in the middle of the depth and the presence of harmful gases in local work sites, which affects normal production. Therefore, it is urgent to use the Ventsim model to implement a ventilation system transformation plan, and ultimately provide valuable experience for ventilation problems in similar types of deposits.

[0003] The operation effect of the ventilation system is directly affected by the selection of fans to a large extent. The traditional method of selecting fans is to manually calculate the air volume requirements during the easiest and most difficult periods of the mine. However, from a lot of practical experience, it can be seen that the fans selected by this method cannot fully match the actual needs of the ventilation network. The Ventsim mine three-dimensional ventilation simulation software system can perfectly solve this problem. It can provide several fan selection options based on the air volume and air pressure required by the mine, and compare them by itself, and finally select the most suitable one. It not only facilitates the selection of fans, but also the simulated fans can achieve a high degree of matching with the ventilation network.

[0004] As underground tunnels change, the ventilation structure of mines will also change accordingly. The natural wind pressure is weak in spring and autumn, and strong in winter and summer. For some mines in mountainous areas or deeper mines, the natural wind pressure has a greater impact. Therefore, we should grasp the law of natural wind pressure in real time, so as to calculate and simulate it through the Ventsim mine three-dimensional ventilation simulation software system. For this purpose, we propose a mine tunnel ventilation detection mechanism. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a mine tunnel ventilation detection mechanism, which can detect and calculate the wind force and wind direction at the corresponding position in the tunnel, so as to grasp the law of natural wind pressure in real time and perform calculation and simulation through the Ventsim mine three-dimensional ventilation simulation software system, which is conducive to quickly and conveniently selecting the fan model and installation position, etc., so as to ensure smooth ventilation in the mine tunnel, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mine tunnel ventilation detection mechanism, comprising a rectangular plate-shaped main body, two groups of supporting devices are symmetrically arranged at the upper and lower ends of the main body, and the main body is fixed in the mine tunnel by the supporting devices, a control panel is installed on the lower part of the side surface of the main body, and two movable grooves are symmetrically opened in the middle of the two side surfaces of the main body, a number of through grooves are evenly opened in the movable grooves, and the through grooves are divided into two groups symmetrically arranged on the left and right, a fixed shaft is fixedly arranged in the through groove, and a wind force detection plate is rotatably arranged on the fixed shaft, two groups of fixed plates corresponding to the through grooves are symmetrically arranged on the side surface of the main body, and a number of ranging sensors are evenly arranged on the side surface of the fixed plate close to the corresponding through groove, and an auxiliary reset device is arranged in the movable groove.

[0007] As a preferred technical solution of the utility model, the supporting device includes screw holes opened on the two side surfaces of the upper and lower ends of the main body, an adjusting screw is threadedly connected to the screw hole, a supporting block is fixedly provided on the end of the adjusting screw, and two grooves are symmetrically opened on the upper and lower side surfaces of the main body, and a rotating nut is provided for the adjusting screw to pass through the groove and rotate in the groove.

[0008] As a preferred technical solution of the utility model, a plurality of toggle plates are evenly and fixedly arranged on the outer peripheral side surface of the rotating nut.

[0009] As a preferred technical solution of the utility model, a buffer pad is bonded to the side surface of the support block.

[0010] As a preferred technical solution of the utility model, the auxiliary reset device includes two slide grooves opened in the middle part of the inner side of the movable groove, a slider is slidably arranged in the slide groove, two reset push plates are symmetrically fixedly arranged on the two side surfaces of the slider, a driving screw is rotatably arranged in the slide groove, the thread directions of the driving screw in the two slide grooves are opposite, the driving screw is threadedly connected to the screw hole opened on the slider, a driving motor is installed at the side surface of the main body corresponding to the driving screw, the output shaft of the driving motor penetrates into the gear cavity opened in the main body and is connected to the driving bevel gear, and the end of the driving screw is installed with a driven bevel gear meshing with the driving bevel gear.

[0011] As a preferred technical solution of the utility model, two limit slide grooves are symmetrically arranged on the upper and lower sides of the movable groove, a limit slider is slidably arranged in the limit slide groove, and the reset push plate is fixedly arranged between the upper and lower limit sliders.

[0012] As a preferred technical solution of the utility model, the wind force detection plate is slightly inclined downward in a direction away from the fixed axis.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the main body is fixed in the mine tunnel by the supporting device so that it is stuck on the inner side of the tunnel. When wind pressure is generated in the tunnel, the wind force detection plate is blown and rotates in the direction of the wind force, and its corresponding distance measuring sensor can detect the position to which it is rotated and transmit the corresponding signal to the PLC controller installed in the control panel, and analyze and calculate according to the preset program in the PLC controller, so as to calculate the wind force and wind direction at the position in the tunnel, so as to grasp the law of natural wind pressure in real time and calculate and simulate through the Ventsim mine three-dimensional ventilation simulation software system, which is conducive to quickly and conveniently selecting the fan model and installation location, so as to ensure smooth ventilation in the mine tunnel and avoid the accumulation of harmful gases in local working sites and affect normal production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the utility model.

[0017] In the figure: 1 main body, 2 adjusting screw, 3 supporting block, 4 buffer pad, 5 groove, 6 rotating nut, 7 toggle plate, 8 control panel, 9 through slot, 10 wind detection plate, 11 fixed plate, 12 distance sensor, 13 movable slot, 14 driving motor, 15 slide slot, 16 driving screw, 17 reset push plate, 18 limit slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a mine tunnel ventilation detection mechanism, including a rectangular plate-shaped main body 1, two sets of supporting devices are symmetrically arranged at the upper and lower ends of the main body 1, and the main body 1 is fixed in the mine tunnel by the supporting devices. A control panel 8 is installed at the lower part of the side surface of the main body 1, and a PLC controller and control buttons are respectively arranged on the control panel 8. The PLC controller is preferably a Siemens S7-200 series PLC controller. A rechargeable lithium-ion battery is installed in the main body 1 for powering the PLC controller and various electrical components.

[0020] Two movable grooves 13 are symmetrically provided in the middle of the two side surfaces of the main body 1, and a plurality of through grooves 9 are evenly provided in the movable grooves 13. The through grooves 9 are divided into two groups symmetrically provided on the left and right sides. A fixed shaft is fixedly provided in the through grooves 9, and a wind force detection plate 10 is rotatably provided on the fixed shaft. Two groups of fixed plates 11 corresponding to the through grooves 9 are symmetrically provided on the side surface of the main body 1. A plurality of distance measuring sensors 12 are evenly provided on the side surface of the fixed plate 11 close to the corresponding through groove 9. The distance measuring sensor 12 is electrically connected to the PLC controller. When wind pressure is generated in the lane, the wind force detection plate 10 is blown and rotates in the direction of the wind force. , and its corresponding distance measuring sensor 12 can detect the position to which it is rotated and transmit the corresponding signal to the PLC controller installed in the control panel 8, and analyze and calculate according to the preset program in the PLC controller, so as to calculate the wind force and wind direction at this position in the tunnel, so as to grasp the law of natural wind pressure in real time and calculate and simulate through the Ventsim mine three-dimensional ventilation simulation software system, which is conducive to quickly and conveniently selecting the fan model and installation location, so as to ensure smooth ventilation in the mine tunnel and avoid the accumulation of harmful gases in local working sites and affect normal production.

[0021] By setting up multiple wind detection plates 10, fixing plates 11 and distance sensors 12, different wind forces can be detected. At the same time, the rotation amplitudes of the wind detection plates 10 detected by each distance sensor 12 can also be comprehensively compared, thereby reducing the detection error and improving the accuracy of the detection result.

[0022] The wind force detection board 10 is a lightweight plastic board, and the specific density and volume can be flexibly set according to the detection requirements.

[0023] Preferably, the fixing plates 11 pass through both sides of the main body 1 , that is, two groups are provided on both sides of the main body 1 . When the wind direction is different, the wind detection plates 10 are blown to both sides and can be detected by the ranging sensors 12 on the fixing plates 11 .

[0024] One of the specific technical solutions is that the supporting device includes screw holes opened on the upper and lower surfaces of the main body 1, and an adjusting screw 2 is threadedly connected to the screw hole. A support block 3 is fixedly arranged on the end of the adjusting screw 2, and two grooves 5 are symmetrically opened on the upper and lower side surfaces of the main body 1. The adjusting screw 2 passes through the groove 5 and a rotating nut 6 is arranged for the part rotating in the groove 5. By rotating the rotating nut 6, the adjusting screw 2 is rotated to extend or shorten, driving the support block 3 at its end to support the side wall of the tunnel, thereby clamping the main body 1 on the inner side of the tunnel.

[0025] According to a preferred technical solution, a plurality of shift plates 7 are evenly and fixedly provided on the outer peripheral surface of the rotating nut 6, and the rotating nut 6 can be rotated more conveniently and quickly through the shift plates 7, which is more convenient to use.

[0026] A further preferred technical solution is that a buffer pad 4 is bonded to the side surface of the support block 3. The buffer pad 4 can be made of a rubber pad with good elasticity. Through its deformation ability, the support block 3 is supported more firmly, thereby ensuring the stability of the detection process. At the same time, the buffer pad 4 is provided so that the support block 3 can be supported in an uneven alley, thereby improving its universality.

[0027] According to a preferred technical solution, the wind detection plate 10 is slightly tilted downward in a direction away from the fixed axis, and when there is no wind or the natural wind stops, the wind detection plate 10 can automatically return to the through slot 9 under the action of gravity.

[0028] According to a further preferred technical solution, an auxiliary resetting device is provided in the movable groove 13, which is used to assist the wind force detection plate 10 that fails to automatically reset to return to its position when the detection is completed or when it is determined that there is no wind.

[0029] Specifically, the auxiliary reset device includes two slide grooves 15 opened in the middle of the inner side of the movable groove 13, a slider is slidably arranged in the slide groove 15, and two reset push plates 17 are symmetrically fixedly arranged on the two side surfaces of the slider, and a driving screw 16 is rotatably arranged in the slide groove 15. The slide groove 15 passes through the two movable grooves 13 front and back, so that the driving screw 16 can simultaneously drive the two reset push plates 17 on both sides to move, and the thread directions of the driving screw 16 in the two slide grooves 15 are opposite. The driving screw 16 is threadedly connected to the screw hole opened on the slider, and a driving motor 14 is installed at the side surface of the main body 1 corresponding to the driving screw 16, and the driving motor 14 is connected to the PLC control The control device is electrically connected and automatically controlled by a PLC controller. The output shaft of the driving motor 14 penetrates into the gear cavity opened in the main body 1 and is connected to the active bevel gear. The end of the driving screw 16 is installed with a driven bevel gear that meshes with the active bevel gear. The driving motor 14 drives the driven bevel gear to rotate through the active bevel gear, thereby driving the driving screw 16 to rotate, and then the two sliders drive their respective reset push plates 17 to move toward or away from each other. When moving toward each other, the wind detection plate 10 that is blown and rotated to the outside and cannot be automatically reset is pushed back into the through groove 9; when moving away, the reset push plate 17 returns to its original position to avoid affecting the wind detection.

[0030] The PLC controller, distance sensor 12, drive motor 14, etc. used in the present application are all commonly used electronic components in the prior art, and their specific structures, working principles, circuit connections, etc. are all well-known technologies.

[0031] A reset push plate 17 is provided on each side of the main body 1 and moves synchronously with the slider. When the wind direction is different and the wind detection plate 10 rotates in a different direction, it can also be reset. The synchronous movement can prevent the wind detection plate 10 from excessively rotating to the other side during the resetting process, thereby ensuring the accuracy of wind detection.

[0032] The driving bevel gear and the driven bevel gear are not shown in the figure, and their meshing transmission is a prior art and will not be described in detail here.

[0033] The preferred technical solution is that two limit slide grooves are symmetrically provided on the upper and lower sides of the movable groove 13, and a limit slider 18 is slidably arranged in the limit slide groove. The reset push plate 17 is fixedly arranged between the upper and lower limit sliders 18, and the upper and lower ends of the reset push plate 17 are fixed by the limit slider 18, so that it is more stable when moving.

[0034] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A mine tunnel ventilation detection mechanism, comprising a rectangular plate-shaped main body (1), characterized in that: Two groups of supporting devices are symmetrically arranged at the upper and lower ends of the main body (1), and the main body (1) is fixed in the mine tunnel by the supporting devices. A control panel (8) is installed at the lower part of the side surface of the main body (1), and two movable grooves (13) are symmetrically arranged in the middle of the two side surfaces of the main body (1). A plurality of through grooves (9) are evenly arranged in the movable grooves (13), and the through grooves (9) are divided into two groups symmetrically arranged on the left and right. A fixed shaft is fixedly arranged in the through groove (9), and a wind force detection plate (10) is rotatably arranged on the fixed shaft. Two groups of fixed plates (11) corresponding to the through grooves (9) are symmetrically arranged on the side surface of the main body (1), and a plurality of distance measuring sensors (12) are evenly arranged on the side surface of the fixed plate (11) close to the corresponding through groove (9), and an auxiliary reset device is arranged in the movable groove (13).

2. A mine tunnel ventilation detection mechanism according to claim 1, characterized in that: The support device comprises screw holes formed on both sides of the upper and lower ends of the main body (1), an adjusting screw (2) being threadedly connected in the screw holes, a supporting block (3) being fixedly arranged at the end of the adjusting screw (2), and two grooves (5) being symmetrically formed on both sides of the upper and lower ends of the main body (1), a rotating nut (6) being arranged for the adjusting screw (2) to pass through the groove (5) and to rotate in the groove (5).

3. A mine tunnel ventilation detection mechanism according to claim 2, characterized in that: A plurality of toggle plates (7) are evenly and fixedly arranged on the outer peripheral surface of the rotating nut (6).

4. A mine tunnel ventilation detection mechanism according to claim 2, characterized in that: A buffer pad (4) is bonded to the side surface of the support block (3).

5. A mine tunnel ventilation detection mechanism according to claim 1, characterized in that: The auxiliary reset device comprises two slide grooves (15) provided in the middle of the inner side of the movable groove (13), a slider is slidably provided in the slide groove (15), two reset push plates (17) are symmetrically fixedly provided on the two side surfaces of the slider, a driving screw (16) is rotatably provided in the slide groove (15), the thread directions of the driving screw (16) in the two slide grooves (15) are opposite, the driving screw (16) is threadedly connected with the screw hole provided on the slider, a driving motor (14) is installed at the side surface of the main body (1) corresponding to the driving screw (16), the output shaft of the driving motor (14) penetrates into the gear cavity provided in the main body (1) and is connected with the driving bevel gear, and a driven bevel gear meshing with the driving bevel gear is installed at the end of the driving screw (16).

6. A mine tunnel ventilation detection mechanism according to claim 5, characterized in that: Two limit slide grooves are symmetrically provided on the upper and lower sides of the movable groove (13), a limit slide block (18) is slidably arranged in the limit slide groove, and the reset push plate (17) is fixedly arranged between the upper and lower limit slide blocks (18).

7. A mine tunnel ventilation detection mechanism according to any one of claims 1 to 6, characterized in that: The wind force detection plate (10) is slightly inclined downward in a direction away from the fixed axis.

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