Automatic dust falling device for dust source tracking of mining coal mining machine

Abstract

The utility model relates to the technical field of coal mining machines, in particular to a mining coal mining machine dust source tracking automatic dust falling device which comprises a coal mining machine rocker arm, a cutting roller and a dust falling assembly, the coal mining machine rocker arm is connected with the cutting roller, the dust falling assembly is connected to the coal mining machine rocker arm, and the dust falling assembly comprises a fixed plate, a guide plate, a movable plate, a telescopic device and a spraying piece. One end of the spraying piece is slidably connected into the guide groove. According to the utility model, the positions of the spraying pieces on the movable plate can be changed in the process of moving in the vertical direction under the guidance of the guide grooves in the guide plate, so that the uniform distribution of the spraying pieces is changed into tight distribution, and the dust removal and wetting effects on more dust gathering parts at the two ends of the cutting roller in the vertical direction are enhanced; and the condition that the working environment is severe due to insufficient moisture is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal mining machine technology field, concretely relates to a mine coal mining machine dust source tracking automatic dust falling device. BACKGROUND

[0002] The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, is used in the general medium and small mine lower gentle thin coal seam, very thin compound coal seam coal mining working face open cut bottom groove, reaches the effect of slotting and coal falling. The coal mining machine will produce a large amount of dust when being used, is easy to influence the vision of staff, and a large amount of floating dust has great harm to the health of staff, so the dust falling device is often arranged on the drum of the coal mining machine.

[0003] The Chinese patent with the publication number CN222436355U discloses a coal mining machine drum spraying structure, which comprises a drum main body and a spraying mechanism, the drum main body is provided with a driving motor for driving the drum main body to rotate, the driving motor is fixed on the body of the coal mining machine, the spraying mechanism comprises an annular pipeline fixed on the driving motor, and a movable spray head is movably connected to one side surface of the annular pipeline. The device supplies water to the inside of the annular pipeline, the water is finally sprayed out through the movable spray head, the control adjusting slider slides in the fixed slide, the position of the control adjusting slider in the fixed slide is adjusted, the movable spray head is pulled to rotate under the connecting action of the connecting rod, the spraying angle of the movable spray head is adjusted, more accurate spraying is realized, water mist waste is reduced, and the poor vision caused by large-scale spraying is avoided.

[0004] However, in the above technical solution, only the control adjusting slider slides in the fixed slide to adjust the position of the control adjusting slider in the fixed slide, the movable spray head is pulled to rotate under the connecting action of the connecting rod, and the spraying angle of the movable spray head is adjusted, but when the coal mining machine cutting drum carries out coal mining operation, smoke or dust flies, and too much dust will descend due to gravity, so that the upper end and the lower end of the cutting drum in the vertical direction will have more dust compared with the middle. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art, and provides a mine coal mining machine dust source tracking automatic dust falling device.

[0006] The utility model discloses a technical scheme: a mine coal winning machine dust source tracking automatic dust falling device, including the coal winning machine rocker, its connection has cutting drum, dust falling subassembly, its connection is in the coal winning machine rocker, and dust falling subassembly includes fixed plate, guide plate, moving plate, telescopic device and spray part, and the fixed plate is connected in the coal winning machine rocker, and the fixed plate is opened and has the accommodation cavity, and the guide plate is connected with the fixed plate, and the guide plate is opened and has a plurality of fan -shaped distribution's guide groove, and two symmetrical moving plates are arranged between the fixed plate and the guide plate, and the symmetrical telescopic device is connected on the fixed plate, and the telescopic end of telescopic device is connected with moving plate, and the spray part is slidably connected with moving plate, and the spray part one end is slidably connected in the guide groove, under the use state of dust falling subassembly, and the telescopic device pushes moving plate and drives partial spray part to synchronize and move away from the fixed plate, and the spray part along the guide groove slides and changes from even distribution to dense distribution.

[0007] Preferably, the spray part is composed of a sliding block, a spray head and a first hose, the sliding block is slidably connected to the moving plate, the spray head is connected to the sliding block, and the first hose is connected to the spray head at one end.

[0008] Preferably, the moving plate is connected with two limiting seats, the limiting seats are connected with parallel guide rods, and the sliding block is slidably connected to the guide rods.

[0009] Preferably, the dust falling subassembly further comprises two fixed spray heads, the fixed spray heads are connected to the guide plate, and the fixed spray heads are connected with water pipes; a water storage bin is connected to the fixed plate, the water storage bin is annular; a main pipeline is connected to the water storage bin, the main pipeline is connected with the first hose and the water pipes, the main pipeline is connected with a connecting pipe, the connecting pipe is connected to the water storage bin; a dust concentration sensor is connected to the fixed plate; an auxiliary assembly is connected in the accommodation cavity; under the use state of the auxiliary assembly, the auxiliary assembly moves along the axis direction of the cutting drum to increase the spraying range.

[0010] Preferably, the auxiliary assembly comprises a support block connected to the fixed plate, the support block is connected with the fixed spray head, and the support block is provided with inclined surfaces at both ends; movable blocks are symmetrically arranged on both sides of the support block, the movable blocks are arranged in parallel with the inclined surfaces of the support block; the number of elastic members corresponds to that of the movable blocks, and the elastic members are connected to the movable blocks and the support block at both ends respectively; the number of auxiliary spray heads corresponds to that of the movable blocks, the auxiliary spray heads are connected to the movable blocks, the auxiliary spray heads are connected with second hoses, and the second hoses are connected to the main pipeline.

[0011] Preferably, the movable blocks are connected with inclined blocks on the side close to the moving plate, and the inclined blocks are slidably connected to the moving plate.

[0012] Preferably, the sliding blocks are connected with baffles, and the baffles are slidably connected to the guide plate.

[0013] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0014] The guide groove on the guide plate can change the position of the spraying part on the moving plate during the vertical movement of the spraying part, so that the spraying part changes from uniform distribution to close distribution, the dust removal and wetting effect on the dust gathering place at the two ends of the cutting drum in the vertical direction is enhanced, and the poor working environment caused by insufficient moisture is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a schematic view of the water storage bin structure;

[0017] Figure 3 It is a schematic view of the dust falling assembly in use;

[0018] Figure 4 It is a schematic view of the dust falling assembly structure;

[0019] Figure 5 It is Figure 4 the enlarged view of structure A.

[0020] The drawings show that the utility model discloses a mine coal winning machine dust source tracking automatic dust falling device, including coal winning machine rocker arm 1, cutting drum 2 and dust falling assembly, and the coal winning machine rocker arm 1 is connected with cutting drum 2. DETAILED DESCRIPTION

[0021] Example one

[0022] As Figures 1-5 shown, the utility model discloses a kind of mine coal winning machine dust source tracking automatic dust falling device, including coal winning machine rocker arm 1, cutting drum 2 and dust falling assembly, and the coal winning machine rocker arm 1 is connected with cutting drum 2.

[0023] Dust falling assembly is connected on coal winning machine rocker arm 1, and dust falling assembly includes fixed plate 3, guide plate 4, moving plate 5, telescopic device 6 and spraying part 7, fixed plate 3 is connected on coal winning machine rocker arm 1, and accommodating cavity is set up on fixed plate 3, guide plate 4 is connected with fixed plate 3, multiple fan-shaped distribution's guide groove 8 is set up on guide plate 4, and two symmetrically arranged moving plate 5 are arranged between fixed plate 3 and guide plate 4.

[0024] In an alternative embodiment, two limit seats 12 are connected to the moving plate 5, the limit seats 12 are connected to the parallel guide rods 13, and the sliding blocks 9 are slidingly connected to the guide rods 13.

[0025] The symmetrical telescopic device 6 is connected to the fixed plate 3; the telescopic device 6 is selected but not limited to a hydraulic cylinder; the telescopic end of the telescopic device 6 is connected to the moving plate 5, and the spraying part 7 is slidingly connected to the moving plate 5;

[0026] In an optional embodiment, the spraying part 7 is composed of a sliding block 9, a spraying head 10 and a first hose 11; the sliding block 9 is slidingly connected to the moving plate 5, the spraying head 10 is connected to the sliding block 9, and the first hose 11 is connected to the spraying head 10 at one end;

[0027] One end of the spraying part 7 is slidingly connected in the guide groove 8; in the use state of the dust falling assembly, the telescopic device 6 drives the moving plate 5 to drive part of the spraying part 7 to move synchronously towards or away from the fixed plate 3, and the spraying part 7 slides along the guide groove 8 to change from uniform distribution to dense distribution.

[0028] Embodiment two

[0029] As shown in Figures 3-5 The utility model discloses a mine coal winning machine dust source tracking automatic dust falling device, compared with embodiment one, the detailed structure of dust falling assembly is recorded in this embodiment, and dust falling assembly still includes fixed shower nozzle 14, water pipe 15, water storage bin 16, main pipeline 17, dust concentration sensor 18 and auxiliary assembly, fixed shower nozzle 14 is provided with two symmetrically, and fixed shower nozzle 14 is connected on guide plate 4, and fixed shower nozzle 14 is connected water pipe 15 on, water storage bin 16 is connected on fixed plate 3, and water storage bin 16 is annular, and main pipeline 17 is connected on water storage bin 16, and main pipeline 17 is connected with first hose 11 and water pipe 15, and main pipeline 17 is connected with connecting pipe, and connecting pipe is connected with water storage bin 16, and dust concentration sensor 18 is connected on fixed plate 3, and the existing coal winning machine is with PLC controller, and dust concentration sensor 18 is connected with PLC controller, and auxiliary assembly is connected in containing cavity, and in the use state of auxiliary assembly, auxiliary assembly moves along the axis direction of cutting drum 2 and increases the spraying range,

[0030] Auxiliary assembly includes support block 19, movable block 20, elastic part 21 and auxiliary shower nozzle 22, support block 19 is connected on fixed plate 3, support block 19 is connected with fixed shower nozzle 14, and both ends of support block 19 are equipped with inclined plane, movable block 20 is symmetrically arranged on both sides of support block 19, movable block 20 is arranged in parallel with the inclined plane on support block 19, the number of elastic part 21 corresponds with movable block 20, and both ends of elastic part 21 are connected with movable block 20 and support block 19 respectively, and elastic part 21 is selected but not limited to tower spring, and the number of auxiliary shower nozzle 22 corresponds with movable block 20, and auxiliary shower nozzle 22 is connected on movable block 20, and second hose is connected on auxiliary shower nozzle 22, and second hose is connected with main pipeline 17,

[0031] In an alternative embodiment, the movable block 20 is connected with an inclined block 23 near one side of the moving plate 5, and the inclined block 23 is in sliding connection with the moving plate 5; the inclined block 23 is coated with a ceramic coating or other friction-reducing coating to prevent jamming;

[0032] In an alternative embodiment, the sliding block 9 is connected with a baffle 24, and the baffle 24 is in sliding connection with the guide plate 4; the baffle 24 is located on the side of the guide plate 4 away from the fixed plate 3, and the baffle 24 can shield the guide groove 8 on the guide plate 4.

[0033] In summary, when the utility model is used, the coal mining machine is driven by the coal mining machine rocker arm 1 to make the cutting drum 2 contact with the coal to cut the coal and make the coal fall on the preset conveyor belt; in the coal mining process, smoke and dust will be generated; the dust generated by different quality coals is different, such as soft coal and hard coal (bituminous coal and anthracite) ; when the coal with less dust is collected, the spray 7 is in a uniform distribution state at this time; the water discharged from the water storage bin 16 is pressurized by the booster pump on the main pipeline 17 to enter the spray head 10 from the first hose 11; at this time, the auxiliary spray head 22 and the second hose are in a closed state; when the coal with more dust is collected, the change of the smoke and dust will cause the signal of the dust concentration sensor 18 to change; the dust concentration sensor 18 transmits the signal to the PLC controller of the coal mining machine; the telescopic device 6 is started by the PLC controller; the telescopic end of the telescopic device 6 is extended to drive the two moving plates 5 to move away from the center position of the cutting drum 2 in opposite directions; in the moving process of the moving plate 5, the sliding block 9 in the spray 7 is gradually moved close to each other under the guidance of the guide groove 8; the distance between the spray heads 10 is reduced and gradually becomes dense to enhance the humidification and dust removal of the positions with more smoke and dust in the vertical direction of the cutting drum 2; at the same time, the movement of the moving plate 5 loses the limitation of the movable block 20; the elastic member 21 drives the movable block 20 to move, so that the auxiliary spray head 22 moves to the position where the original part of the spray head 10 is located on the guide plate 4; the spray range in the vertical direction is kept the same as before, so that the overall spray is dense at both ends in the vertical direction and uniformly distributed in the middle, to adapt to the density of the dust distribution.

[0034] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited thereto; various changes can be made within the knowledge range of the persons skilled in the art without departing from the purpose of the utility model.

Claims

1. An automatic dust suppression device for tracking dust sources in mining coal mining machines, characterized in that, include The rocker arm (1) of the coal mining machine is connected to the cutting drum (2); The dust suppression assembly is connected to the rocker arm (1) of the coal mining machine. The dust suppression assembly includes a fixed plate (3), a guide plate (4), a movable plate (5), a telescopic device (6), and a spraying component (7). The fixed plate (3) is connected to the rocker arm (1) of the coal mining machine. A cavity is provided on the fixed plate (3). The guide plate (4) is connected to the fixed plate (3). Multiple fan-shaped guide grooves (8) are provided on the guide plate (4). Two symmetrically arranged movable plates (5) are set on the fixed plate (3) and the guide plate. Between (4), symmetrical telescopic devices (6) are connected to fixed plate (3). The telescopic end of telescopic device (6) is connected to moving plate (5). Sprayer (7) is slidably connected to moving plate (5). One end of sprayer (7) is slidably connected in guide groove (8). When the dust suppression component is in use, telescopic device (6) pushes moving plate (5) to drive some sprayer (7) to move away from fixed plate (3) in the same direction. Sprayer (7) slides along guide groove (8) from uniform distribution to dense distribution.

2. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 1, characterized in that, The spray unit (7) consists of a slider (9), a spray head (10) and a first hose (11). The slider (9) is slidably connected to the movable plate (5), the spray head (10) is connected to the slider (9), and one end of the first hose (11) is connected to the spray head (10).

3. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 2, characterized in that, Two limit seats (12) are connected to the movable plate (5). Parallel guide rods (13) are connected to the limit seats (12). The slider (9) is slidably connected to the guide rods (13).

4. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 1, characterized in that, Dust suppression components also include There are two fixed nozzles (14) symmetrically arranged. The fixed nozzles (14) are connected to the guide plate (4) and the fixed nozzles (14) are connected to the water pipes (15). A water storage tank (16) is connected to a fixed plate (3), and the water storage tank (16) is ring-shaped; The main pipe (17) is connected to the water storage tank (16). The main pipe (17) is connected to the first hose (11) and the water pipe (15). The main pipe (17) is connected to a connecting pipe, which is connected to the water storage tank (16). A dust concentration sensor (18) is connected to a fixed plate (3); An auxiliary component is connected within the cavity; when in use, the auxiliary component moves along the axis of the cutting drum (2) to increase the spraying range.

5. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 4, characterized in that, Auxiliary components include A support block (19) is connected to a fixed plate (3). The support block (19) is connected to a fixed nozzle (14). Both ends of the support block (19) are provided with inclined surfaces. The movable block (20) is symmetrically arranged on both sides of the support block (19), and the movable block (20) is parallel to the upper inclined surface of the support block (19); The number of elastic elements (21) corresponds to the number of movable blocks (20), and the two ends of the elastic elements (21) are connected to the movable block (20) and the support block (19) respectively. The number of auxiliary nozzles (22) corresponds to the number of movable blocks (20). The auxiliary nozzles (22) are connected to the movable blocks (20). A second hose is connected to the auxiliary nozzles (22), and the second hose is connected to the main pipe (17).

6. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 5, characterized in that, The movable block (20) is connected to the inclined block (23) on the side near the moving plate (5), and the inclined block (23) is slidably connected to the moving plate (5).

7. The automatic dust suppression device for tracking dust sources in a mining coal mining machine according to claim 2, characterized in that, Each slider (9) is connected to a baffle (24), and the baffle (24) is slidably connected to the guide plate (4).

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