Coal mine dust detection and early warning device

Abstract

The utility model is applicable to the technical field of coal mine dust detection, and provides a coal mine dust detection early warning device, which comprises a track, a first mounting plate, a first driving structure, a second driving structure and a dust sensor, the first driving structure comprises a track, a first mounting plate and a dust sensor, the second driving structure comprises a rotary table, a power mechanism, a second mounting plate and a scissor fork mechanism, and the power mechanism comprises a worm gear, a worm, a gear and a rack. The power mechanism drives the rotary table to rotate, when the rotary table rotates, the shear fork mechanism is driven to swing up and down, the shear fork mechanism drives the dust sensor to swing up and down through the second mounting plate, meanwhile, the rotary table drives the shear fork mechanism to repeatedly stretch and retract, the shear fork mechanism drives the dust sensor to move in a larger range, the detection range is expanded, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine dust detection, and particularly relates to a coal mine dust detection and early warning device. Background Art

[0002] The mining industry is developing faster and faster in China. However, accidents caused by excessive dust concentration in the operation environment during coal mining, loading and transportation often occur, resulting in casualties. Therefore, it is necessary to use a dust detection device to monitor the dust concentration in real time;

[0003] Existing detection devices are generally fixedly installed, or placed at a certain position through a bracket. For example, the prior art CN210691559U discloses a coal mine dust detection and alarm device, including a sensor. A display panel is fixedly installed on the front of the sensor. A handle is movably connected to the top of the sensor. An audible and visual alarm is fixedly connected to the top of one side of the sensor. A speaker is fixedly connected to one side of the sensor and located at the bottom of the audible and visual alarm. The middle of the bottom of the sensor is fixedly connected with a connecting plate, and a fixing nut is threadedly connected to the bottom of the connecting plate.

[0004] In the above prior art, the device is placed at a certain position, which makes the detection range relatively small. If the detection range is small, the detection data will be less, and other nearby places cannot be detected, affecting the monitoring efficiency and mining safety. Content of the Utility Model

[0005] The utility model provides a coal mine dust detection and early warning device, aiming to solve the above problems.

[0006] The utility model is realized as follows. A coal mine dust detection and early warning device includes:

[0007] A fixedly arranged track;

[0008] A first mounting plate slidably mounted on the track along the length direction of the track;

[0009] A first driving structure mounted on the track for driving the first mounting plate to move along the length direction of the track;

[0010] A second driving structure mounted on the first mounting plate, the second driving structure being drivingly connected to a dust sensor for driving the dust sensor to move;

[0011] The second driving structure includes:

[0012] A turntable rotatably mounted on the first mounting plate;

[0013] A power mechanism mounted on the first mounting plate for driving the turntable to rotate;

[0014] The second mounting plate for fixedly installing the dust sensor;

[0015] The scissor mechanism connected between the turntable and the second mounting plate, one of the two rod ends of the scissor mechanism close to the turntable is eccentrically hinged to the end face of the turntable, the other is hinged to the first mounting plate, one of the two rod ends of the scissor mechanism close to the dust sensor is hinged to the second mounting plate, and the other is hinged with a slider, and the slider is slidably connected to the second mounting plate.

[0016] Preferably, the track is fixedly composed of a plurality of branch tracks spliced.

[0017] Preferably, the first driving structure includes:

[0018] The driving wheels rotatably mounted at both ends of the track;

[0019] The power member fixed on the track for driving one driving wheel to rotate;

[0020] The drive belt connected between the two drive wheels, a through hole for the upper belt body and the lower belt body of the drive belt to pass through is formed on the first mounting plate, and the upper belt body or the lower belt body of the drive belt is fixedly connected to the first mounting plate.

[0021] Preferably, the power mechanism includes:

[0022] The worm wheel coaxially fixed with the turntable;

[0023] The worm that is perpendicular to the length direction of the track and rotatably mounted on the first mounting plate, and the worm meshes with the worm wheel;

[0024] The gear fixed on the worm, a rack meshing with the gear is fixed on the track along its length direction, and the rack penetrates through the first mounting plate.

[0025] Preferably, a warning light is fixed on the second mounting plate or the dust sensor housing, and the warning light is electrically connected to the dust sensor.

[0026] Preferably, a buzzer is fixed on the second mounting plate or the dust sensor housing, and the buzzer is electrically connected to the dust sensor.

[0027] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0028] The coal mine dust detection and early warning device provided by the utility model is provided with a track, a first mounting plate, a first driving structure, a second driving structure and a dust sensor. The second driving structure includes a turntable, a power mechanism, a second mounting plate and a scissor mechanism. The first driving mechanism drives the first mounting plate to move along the length direction of the track, and the first mounting plate drives the dust sensor to move through the second driving mechanism, so that dust detection can be carried out within a longer distance. Moreover, the power mechanism drives the turntable to rotate. When the turntable rotates, it drives the scissor mechanism to swing up and down. The scissor mechanism drives the dust sensor to swing up and down through the second mounting plate, expanding the detection range of the dust sensor. At the same time, the turntable drives the scissor mechanism to repeatedly extend and shorten, and the scissor mechanism drives the dust sensor to move within a larger range, further expanding the detection range and improving the detection efficiency. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of a coal mine dust detection and early warning device provided by the utility model;

[0030] Figure 2 is a schematic diagram of the second driving structure in a coal mine dust detection and early warning device provided by the utility model;

[0031] Figure 3 is a schematic structural diagram of the power mechanism in a coal mine dust detection and early warning device provided by the utility model.

[0032] Annotation of reference numerals: 1, track; 2, driving wheel; 3, mounting hole; 4, driving belt; 5, second mounting plate; 6, dust sensor; 7, first mounting plate; 8, warning light; 9, buzzer; 10, rack; 11, sliding seat; 12, turntable; 13, scissor mechanism; 14, gear; 15, worm; 16, perforation; 17, worm gear. Detailed Embodiments

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0034] Reference to "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0035] An embodiment of the present utility model provides a coal mine dust detection and early warning device, as Figures 1 - 3 shown, including:

[0036] A fixedly arranged track 1, which can be fixed to the mine wall. Installation holes 3 are provided at both ends of the track 1, and it can be fixedly installed by bolts, screws, etc.; further, the track 1 can be composed of multiple branch tracks spliced and fixed by bolts, snap connections, etc.

[0037] A first mounting plate 7 slidably mounted on the track 1 along the length direction of the track 1. The first mounting plate 7 can be slidably connected to the track 1 through a sliding seat 11, and multiple sliding seats 11 can be fixedly installed on the first mounting plate 7 by screws or welding.

[0038] A first driving structure mounted on the track 1, which is used to drive the first mounting plate 7 to move along the length direction of the track 1.

[0039] A second driving structure mounted on the first mounting plate 7, the second driving structure is drivingly connected to the dust sensor 6 and is used to drive the dust sensor 6 to move.

[0040] The second driving structure includes:

[0041] A turntable 12 rotatably mounted on the first mounting plate 7, which can be rotatably mounted through a rotating shaft and a bearing.

[0042] A power mechanism mounted on the first mounting plate 7, which is used to drive the turntable 12 to rotate.

[0043] A second mounting plate 5 for fixedly mounting the dust sensor 6, and the dust sensor 6 can be fixed to the second mounting plate 5 by screws.

[0044] A scissor mechanism 13 connected between the turntable 12 and the second mounting plate 5. One of the two rod ends of the scissor mechanism 13 close to the turntable 12 is eccentrically hinged to the end face of the turntable 12, and the other is hinged to the first mounting plate 7. One of the two rod ends of the scissor mechanism 13 close to the dust sensor 6 is hinged to the second mounting plate 5, and the other is hinged with a slider, and the slider is slidably connected to the second mounting plate 5.

[0045] During operation, the first driving mechanism drives the first mounting plate 7 to move along the length direction of the track 1. The first mounting plate 7 drives the dust sensor 6 to move through the second driving mechanism, enabling dust detection over a longer distance. Moreover, the power mechanism drives the turntable 12 to rotate. When the turntable 12 rotates, it drives the scissor mechanism 13 to swing up and down. The scissor mechanism 13 drives the dust sensor 6 to swing up and down through the second mounting plate 5, expanding the detection range of the dust sensor 6. At the same time, the turntable 12 drives the scissor mechanism 13 to repeatedly extend and contract, and the scissor mechanism 13 drives the dust sensor 6 to move within a larger range, further expanding the detection range and improving the detection efficiency.

[0046] Among them, the first driving structure includes:

[0047] The driving wheels 2 rotatably mounted at both ends of the track 1 can be rotatably mounted through bearings;

[0048] The power member fixed on the track 1 is used to drive one of the driving wheels 2 to rotate. The power member can be a forward and reverse stepping motor and is fixed on the track 1 by bolts;

[0049] The driving belt 4 connected between the two driving wheels 2. The first mounting plate 7 is provided with a through hole 16 for the upper belt body and the lower belt body of the driving belt 4 to pass through. The upper belt body or the lower belt body of the driving belt 4 is fixedly connected to the first mounting plate 7 and can be fixed by screws;

[0050] In this embodiment, the driving wheels 2 and the driving belt 4 can be pulley and belt, or synchronous pulley and synchronous belt, etc., without excessive limitation. A travel switch can be installed on the track 1 to limit the moving stroke of the first mounting plate 7.

[0051] During operation, the power member is started to drive the driving wheel 2 to rotate. The two driving wheels 2 cooperate to drive the driving belt 4 to move. The driving belt 4 drives the first mounting plate 7 to move to one end close to the track 1, and then the power member drives the driving wheel 2 to reverse, driving the first mounting plate 7 to move in the opposite direction to the other end close to the track 1, so that the first mounting plate 7 drives the dust sensor 6 to move back and forth.

[0052] In a specific implementation, the power mechanism includes:

[0053] The worm gear 17 coaxially fixed with the turntable 12;

[0054] The worm 15 perpendicular to the length direction of the track 1 and rotatably mounted on the first mounting plate 7 can be rotatably mounted through bearings and bearing seats. The worm 15 meshes with the worm gear 17;

[0055] The gear 14 fixed on the worm 15. The rack 10 meshing with the gear 14 is fixed along the length direction of the track 1, and the rack 10 penetrates through the first mounting plate 7;

[0056] When the first driving structure drives the first mounting plate 7 to move, it drives the gear 14 to move relative to the rack 10. The self-rotation of the gear 14 drives the self-rotation of the worm 15, the worm 15 drives the worm wheel 17 to rotate, and the worm wheel 17 drives the turntable 12 to rotate.

[0057] In this embodiment, a warning light 8 is fixed on the second mounting plate 5 or the housing of the dust sensor 6, and can be fixed by screws. The warning light 8 is electrically connected to the dust sensor 6. When the dust sensor 6 detects that the dust concentration exceeds the standard, the warning light 8 flashes to give a reminder.

[0058] Preferably, a buzzer 9 is fixed on the second mounting plate 5 or the housing of the dust sensor 6, and can be fixed by screws. The buzzer 9 is electrically connected to the dust sensor 6. When the dust sensor 6 detects that the dust concentration exceeds the standard, the buzzer 9 emits a sound to give a reminder.

[0059] Of course, the dust sensor 6 can also be connected to the Internet of Things. By connecting with a wireless communication module and communicating with devices such as an industrial control computer through Ethernet, it is convenient for staff to obtain data and monitor in real time, and timely understand the coal mine dust situation.

[0060] In summary, the present invention provides a coal mine dust detection and warning device, and its working principle is as follows:

[0061] Start the power component to drive the driving wheel 2 to rotate. The two driving wheels 2 cooperate to drive the driving belt 4 to move. The driving belt 4 drives the first mounting plate 7 to move. The first mounting plate 7 drives the dust sensor 6 to move through the second driving mechanism, enabling dust detection over a longer distance. When the first mounting plate 7 moves, it drives the gear 14 to move relative to the rack 10. The self-rotation of the gear 14 drives the self-rotation of the worm 15, the worm 15 drives the worm wheel 17 to rotate, and the worm wheel 17 drives the turntable 12 to rotate. When the turntable 12 rotates, it drives the scissor mechanism 13 to swing up and down. The scissor mechanism 13 drives the dust sensor 6 to swing up and down through the second mounting plate 5, expanding the detection range of the dust sensor 6. At the same time, the turntable 12 drives the scissor mechanism 13 to repeatedly extend and contract, and the scissor mechanism 13 drives the dust sensor 6 to move within a larger range, further expanding the detection range and improving the detection efficiency.

[0062] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0063] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the circumstances, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. A coal mine dust detection and early warning device, characterized in that: include: Fixed set track; A first mounting plate slidably mounted on the rail along the length direction of the rail; A first driving structure installed on the track, used to drive the first mounting plate to move along the length direction of the track; A second driving structure mounted on the first mounting plate, the second driving structure drivingly connected to the dust sensor, for driving the dust sensor to move; The second driving structure comprises: Rotating a turntable mounted on the first mounting plate; A power mechanism installed on the first mounting plate, used to drive the turntable to rotate; A second mounting plate for fixing and mounting the dust sensor; A scissor mechanism is connected between the turntable and the second mounting plate, wherein one of the two rod ends of the scissor mechanism close to the turntable is eccentrically hinged to the end surface of the turntable, and the other is hinged to the first mounting plate; one of the two rod ends of the scissor mechanism close to the dust sensor is hinged to the second mounting plate, and the other is hinged with a slider, which is slidably connected to the second mounting plate.

2. The coal mine dust detection and early warning device according to claim 1, characterized in that: The track is composed of a plurality of branch rails which are spliced ​​and fixed together.

3. The coal mine dust detection and early warning device according to claim 1, characterized in that: The first driving structure comprises: Rotate the drive wheels installed at both ends of the track; A power member fixed on the track, used to drive a driving wheel to rotate; A driving belt connected between two driving wheels, wherein the first mounting plate is provided with through holes for the upper belt body and the lower belt body of the driving belt to pass through, and the upper belt body or the lower belt body of the driving belt is fixedly connected to the first mounting plate.

4. The coal mine dust detection and early warning device according to claim 1, characterized in that: The power mechanism comprises: A worm gear fixed coaxially with the turntable; A worm screw is rotatably mounted on the first mounting plate and is perpendicular to the length direction of the track, wherein the worm screw is meshed with the worm wheel; A gear is fixed on the worm, and a rack meshing with the gear is fixed on the track along its length direction, and the rack passes through the first mounting plate.

5. The coal mine dust detection and early warning device according to claim 1, characterized in that: A warning light is fixed on the second mounting plate or the dust sensor housing, and the warning light is electrically connected to the dust sensor.

6. The coal mine dust detection and early warning device according to claim 1, characterized in that: A buzzer is fixed on the second mounting plate or the dust sensor housing, and the buzzer is electrically connected to the dust sensor.

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