Flying stone prevention mechanism for fully mechanized coal mining face

Abstract

The utility model relates to the technical field of coal mining, and discloses a fully mechanized coal mining face flying stone prevention mechanism which comprises a base, the top of the base is fixedly connected with two supporting seats, the tops of the two supporting seats are both slidably connected with two sliding rails, the tops of the sliding rails are fixedly connected with a platform, and the top of the platform is fixedly connected with a hydraulic cylinder. The edge of the top of the base is fixedly connected with a fixing plate, the rear side of the fixing plate is connected with a first air cylinder in a hinged mode, the output end of the first air cylinder is fixedly connected to the front side of the platform, lower sliding grooves are formed in the two sides of the top of the platform correspondingly, and moving seats are slidably connected to one sides of the interiors of the lower sliding grooves. The other side of the interior of the lower sliding groove is fixedly connected with a fixing base. According to the utility model, the height of the telescopic net can be quickly adjusted to adapt to working surfaces with different heights, so that the working safety and efficiency are improved, and casualty accidents caused by stone flying on coal walls and top plates during mining of the working surfaces are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a flying stone prevention mechanism for a fully mechanized mining working face. Background Art

[0002] Comprehensive mining is the abbreviation of comprehensive mechanized mining in coal mines, generally referring to a mining method with a mechanization rate of more than 95%. It is a longwall mining method that involves underground mining and is suitable for longwall mining of medium and thick coal seams with stable coal seams, hard roofs, no faults and gentle inclinations, and thick coal seams. During the blasting mining process in coal mines, anti-flying stone devices are needed to prevent flying stones from splashing.

[0003] In the prior art, during coal mining, a simple protective plate is generally used to prevent flying rocks. However, the simple anti-flying rock device cannot adjust the height of the protective plate according to the on-site environment, which has certain limitations. Therefore, a comprehensive mining working face anti-flying rock mechanism is proposed to solve the above problem. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a flying stone prevention mechanism for a fully mechanized mining working face, aiming to improve the problem in the prior art that the flying stone prevention device cannot adjust the height of the protective plate according to the on-site environment.

[0005] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is hinged on the base, and the interlocking structure is hinged on the base, and the interlocking structure is hinged on the base, and the interlocking structure is hinged on the base, and the interlocking structure is hinged on the base, and the interlocking structure is hinged on the base.

[0006] As a further description of the above technical solution:

[0007] The reciprocating dust reduction assembly includes a motor, the top of the motor is fixedly connected to the bottom of the top plate, the motor output end is fixedly connected to a crank, the crank is rotatably connected to a rotating rod at one end away from the motor, the left side of the bottom of the top plate is fixedly connected to a fixing rod, the bottom of the fixing rod is rotatably connected to a hollow shell, the inside of the hollow shell is slidably connected to a slider, the middle of the bottom of the top plate is fixedly connected to a fixing frame, the right side of the fixing frame is fixedly connected to a connecting plate, the bottom of the connecting plate is rotatably connected to an atomizing nozzle, a water pump is arranged between the atomizing nozzle and the slider, the top edge of the platform is fixedly connected to a water pump, the output end of the water pump is fixedly connected to a water pipe, the end of the water pipe away from the water pump is fixedly connected to the right side of the atomizing nozzle, and the input end of the water pump is fixedly connected to a water pumping pipe.

[0008] As a further description of the above technical solution:

[0009] A wire mesh is slidably connected to the outer periphery of the top plate and the platform, and a telescopic net is fixedly connected between the top plate and the platform.

[0010] As a further description of the above technical solution:

[0011] The slide bar is slidably connected to the top of the platform.

[0012] As a further description of the above technical solution:

[0013] The bottom of the upper movable seat is slidably connected to one side of the upper slide groove, and the upper fixed seat is fixedly connected to the other side of the upper slide groove.

[0014] As a further description of the above technical solution:

[0015] The lower movable seat and the fixed seat are externally rotatably connected to the bottom of the bracket, and the upper movable seat and the fixed seat are externally rotatably connected to the top of the bracket.

[0016] As a further description of the above technical solution:

[0017] The outside of the rotating rod is slidably connected to the inside of the hollow shell.

[0018] As a further description of the above technical solution:

[0019] The one end is rotatably connected to the bottom of the slider, and the other end is rotatably connected to the top of the atomizing nozzle.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the upper slide chute, the lower slide chute, the fixed seat, the movable seat, the bracket, the second cylinder, the slide rod and other structures cooperate with each other to drive the bracket to work, and the height of the telescopic net can be quickly adjusted to adapt to working surfaces of different heights, thereby improving work safety and efficiency and avoiding casualties caused by flying rocks from the coal wall and the roof during mining of the working surface.

[0022] 2. In the utility model, with the cooperation of structures such as the water pump, water pipe, water suction pipe, crank, motor, rotating rod, fixed rod, fixed frame, slider, atomizing nozzle, hollow shell, etc., the atomizing nozzle can be driven, and the water flow can be atomized and sprayed into the working area through the atomizing nozzle, thereby effectively reducing the dust concentration generated during coal mining and ensuring the health of miners. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of a flying stone prevention mechanism for a fully mechanized mining working face proposed by the utility model;

[0024] Figure 2 This is a structural schematic diagram of a sliding rod of a fully mechanized mining working face anti-flying rock mechanism proposed by the utility model;

[0025] Figure 3 This is a structural schematic diagram of an upper slideway of a fully mechanized mining working face anti-flying rock mechanism proposed by the utility model;

[0026] Figure 4 The utility model proposes a fan of a fully mechanized mining working face anti-flying stone mechanism Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Legend:

[0028] 1. Base; 2. Support seat; 3. Slide rail; 4. Fixed plate; 5. Cylinder 1; 6. Platform; 7. Lower slide chute; 8. Fixed seat; 9. Moving seat; 10. Bracket; 11. Cylinder 2; 12. Slide rod; 13. Motor; 14. Crank; 15. Rotating rod; 16. Hollow shell; 17. Fixed frame; 18. Fixed rod; 19. Upper slide chute; 20. Sliding block; 21. Thin rod; 22. Connecting plate; 23. Atomizing nozzle; 24. Water pump; 25. Water pipe; 26. Suction pipe; 27. Wire mesh; 28. Telescopic net; 29. ​​Top plate; 30. Connecting plate. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a flying stone prevention mechanism for a fully mechanized mining working face, comprising a base 1, two supporting seats 2 are fixedly connected to the top of the base 1, two slide rails 3 are slidably connected to the tops of the two supporting seats 2, a platform 6 is fixedly connected to the tops of the multiple slide rails 3, a fixed plate 4 is fixedly connected to the top edge of the base 1, a cylinder 1 5 is hingedly connected to the rear side of the fixed plate 4, an output end of the cylinder 1 5 is fixedly connected to the front side of the platform 6, a sliding groove 7 is provided on both sides of the top of the platform 6, a moving seat 9 is slidably connected to one side of the sliding groove 7, a fixed seat 8 is fixedly connected to the other side of the sliding groove 7, a bracket 10 is arranged on the top of the lower fixed seat 8 and the moving seat 9, a cylinder 2 11 is hingedly connected to the top of the platform 6, and the cylinder 2 11 output A sliding rod 12 is fixedly connected to the output end, and both ends of the sliding rod 12 are fixedly connected between the two lower movable seats 9. A top plate 29 is arranged above the platform 6, and upper slide grooves 19 are opened on both sides of the bottom of the top plate 29. A reciprocating dust reduction assembly is arranged at the bottom of the top plate 29. A wire mesh 27 is slidably connected to the outer periphery of the top plate 29 and the platform 6, and a telescopic net 28 is fixedly connected between the top plate 29 and the platform 6. The sliding rod 12 is slidably connected to the top of the platform 6, and the bottom of the upper movable seat 9 is slidably connected to one side of the upper slide groove 19, and the upper fixed seat 8 is fixedly connected to the other side of the upper slide groove 19. The lower movable seat 9 is externally rotatably connected to the fixed seat 8 at the bottom of the bracket 10, and the upper movable seat 9 is externally rotatably connected to the fixed seat 8 at the top of the bracket 10.

[0031] Specifically, when it is necessary to protect the coal mining working face, the operator starts the cylinder 1 5, and the piston rod of the cylinder 1 5 extends to push the platform 6 to move toward the working face. The platform 6 is the basic part of the protective device, which can carry other components and provide a stable working face. In order to adapt to working faces of different heights, the cylinder 2 11 is then started, and the piston rod of the cylinder 2 11 extends or retracts, driving the slide bar 12 to slide on the top of the platform 6. The sliding direction of the slide bar 12 corresponds to the height adjustment direction of the working face. When the slide bar 12 slides, its bottom is connected to the moving seat 9, thereby driving the moving seat 9 to slide inside the sliding groove 7. The sliding groove 7 provides a stable sliding track for the moving seat 9 to ensure that it can move smoothly and accurately. A rotating shaft is provided in the middle of the bracket group 10. When the moving seat 9 slides in the sliding groove 7, the upper moving seat 9 can be driven to slide inside the upper sliding groove 19 through the rotating shaft in the bracket group 10. The upper slide groove 19 is also fixed in a proper position to provide a sliding track for the upper movable seat 9. When the upper movable seat 9 slides in the upper slide groove 19, the top plate 29 is raised or lowered to a proper position by the push of the bracket 10. The top plate 29 is the main part of the device, used to shield the potential danger above the working surface. When the top plate 29 is raised or lowered, the telescopic net 28 will also rise or fall accordingly. The design of the telescopic net 28 enables it to be adaptively adjusted according to the height change of the top plate 29, so as to maintain a suitable protection height.

[0032] Reference Figure 2 - Figure 4 The reciprocating dust suppression assembly includes a motor 13, the top of the motor 13 is fixedly connected to the bottom of the top plate 29, the output end of the motor 13 is fixedly connected to a crank 14, the crank 14 is rotatably connected to a rotating rod 15 at one end away from the motor 13, the bottom left side of the top plate 29 is fixedly connected to a fixed rod 18, the bottom of the fixed rod 18 is rotatably connected to a hollow shell 16, the inside of the hollow shell 16 is slidably connected to a slider 20, the middle of the bottom of the top plate 29 is fixedly connected to a fixed frame 17, the right side of the fixed frame 17 is fixedly connected to a connecting plate 30, and the connecting plate 30 An atomizing nozzle 23 is rotatably connected to the bottom, 22 is arranged between the atomizing nozzle 23 and the slider 20, a water pump 24 is fixedly connected to the top edge of the platform 6, a water pipe 25 is fixedly connected to the output end of the water pump 24, an end of the water pipe 25 away from the water pump 24 is fixedly connected to the right side of the atomizing nozzle 23, a water pump 26 is fixedly connected to the input end of the water pump 24, the outside of the rotating rod 15 is slidably connected to the inside of the hollow shell 16, one end of 22 is rotatably connected to the bottom of the slider 20, and the other end of 22 is rotatably connected to the top of the atomizing nozzle 23.

[0033] Specifically, the dust generated during coal mining is a serious health problem. Long-term inhalation of this dust may cause miners to suffer from various respiratory diseases. Therefore, it is crucial to carry out effective dust reduction treatment in coal mining. When dust reduction is needed, the motor 13 is started. The motor 13 is the core component that drives the entire dust reduction system. The motor 13 drives the crank 14 to rotate. The rotation of the crank 14 further drives the rotating rod 15 to rotate in the hollow shell 16. The hollow shell 16 allows the rotating rod 15 to rotate in a limited space. Under the limiting action of the fixed rod 18, the rotation of the rotating rod 15 will drive the hollow shell 16 to swing back and forth. The fixed rod 18 plays a role in limiting and supporting the hollow shell. The function of the shell 16 is to ensure that it can only move on a specific path. The swing of the hollow shell 16 will drive the internal slider 20 to slide inside the hollow shell 16. Under the action of the connecting plate 22, when the slider 20 slides, the atomizing nozzle 23 will also swing back and forth. At the same time, the water pump 24 is started. The water pump 24 draws water from an external water source through a water pumping pipe 26 and transports the water to the atomizing nozzle 23 through a water pipe 25. When the water reaches the atomizing nozzle 23, due to the design of the nozzle, the water will be atomized into fine water droplets or water mist. These water mists will drift to every corner of the working surface with the wind, combine with dust in the air to form larger particles, and then settle to the ground, thereby achieving the effect of dust reduction.

[0034] Working principle: When it is necessary to protect the coal mining working face, start the cylinder 1 5 to push the platform 6 close to the working face. In order to adapt to working faces of different heights, at this time, start the cylinder 2 11 to drive the slide bar 12 to slide on the top of the platform 6. When the slide bar 12 slides, it drives the bottom moving seat 9 to slide inside the lower slide groove 7, and then drives the upper moving seat 9 to slide inside the upper slide groove 19 through the rotating shaft in the middle of the bracket group 10, and then pushes the top plate 29 through the bracket 10, so that the top plate 29 is raised to a suitable position, and then pulls the telescopic net 28 to rise to a suitable height. A large amount of dust is generated during coal mining, and long-term inhalation may cause harm to the human body. Therefore, dust reduction is required during coal mining. The motor 13 is started to drive the crank 14 to rotate. When the crank 14 rotates, the rotating rod 15 is driven to rotate in the hollow shell 16. Under the limit of the fixed rod 18, the hollow shell 16 is driven to swing back and forth, and then the slider 20 is driven to slide inside the hollow shell 16, thereby driving the atomizing nozzle 23 to swing back and forth. The water pump 24 is started to draw external water through the water pump 26, and the water is transported to the atomizing nozzle 23 through the water pipe 25, thereby completing the dust reduction on the working surface.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flying stone prevention mechanism for a fully mechanized mining working face, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to two support seats (2), the tops of the two support seats (2) are slidably connected to two slide rails (3), the tops of the plurality of slide rails (3) are fixedly connected to a platform (6), the top edge of the base (1) is fixedly connected to a fixed plate (4), the rear side of the fixed plate (4) is hingedly connected to a cylinder 1 (5), the output end of the cylinder 1 (5) is fixedly connected to the front side of the platform (6), both sides of the top of the platform (6) are provided with a sliding groove (7), one side of the interior of the sliding groove (7) is slidably connected to a moving seat (9), the sliding groove (7) is fixedly connected to the front side of the platform (6), and the sliding groove (7) is fixedly connected to the front side of the platform (6). A fixed seat (8) is fixedly connected to the other side of the groove (7), and a bracket (10) is arranged on the top of the fixed seat (8) and the movable seat (9) at the lower part. The top of the platform (6) is hingedly connected to the second cylinder (11), and the output end of the second cylinder (11) is fixedly connected to a slide bar (12), and both ends of the slide bar (12) are fixedly connected between the two movable seats (9) at the lower part. A top plate (29) is arranged above the platform (6), and upper slide grooves (19) are provided on both sides of the bottom of the top plate (29), and a reciprocating dust suppression component is arranged at the bottom of the top plate (29).

2. The anti-flying stone mechanism for a fully mechanized mining face according to claim 1 is characterized in that: The reciprocating dust suppression component comprises a motor (13), the top of the motor (13) is fixedly connected to the bottom of the top plate (29), the output end of the motor (13) is fixedly connected to a crank (14), the end of the crank (14) away from the motor (13) is rotatably connected to a rotating rod (15), the left side of the bottom of the top plate (29) is fixedly connected to a fixed rod (18), the bottom of the fixed rod (18) is rotatably connected to a hollow shell (16), the inside of the hollow shell (16) is slidably connected to a slider (20), and the middle of the bottom of the top plate (29) is fixedly connected to a fixed frame ( 17), a connecting plate (30) is fixedly connected to the right side of the fixing frame (17), an atomizing nozzle (23) is rotatably connected to the bottom of the connecting plate (30), a (22) is arranged between the atomizing nozzle (23) and the slider (20), a water pump (24) is fixedly connected to the top edge of the platform (6), a water pipe (25) is fixedly connected to the output end of the water pump (24), an end of the water pipe (25) away from the water pump (24) is fixedly connected to the right side of the atomizing nozzle (23), and a water pump (26) is fixedly connected to the input end of the water pump (24).

3. The anti-flying stone mechanism for a fully mechanized mining face according to claim 1 is characterized in that: A steel wire mesh (27) is slidably connected to the outer periphery of the top plate (29) and the platform (6), and a telescopic net (28) is fixedly connected between the top plate (29) and the platform (6).

4. The anti-flying stone mechanism for a fully mechanized mining face according to claim 1 is characterized in that: The sliding rod (12) is slidably connected to the top of the platform (6).

5. The anti-flying stone mechanism for a fully mechanized mining face according to claim 1 is characterized in that: The bottom of the upper movable seat (9) is slidably connected to one side of the upper slide groove (19), and the upper fixed seat (8) is fixedly connected to the other side of the upper slide groove (19).

6. The anti-flying stone mechanism for a fully mechanized mining face according to claim 1 is characterized in that: The lower movable seat (9) and the fixed seat (8) are externally rotatably connected to the bottom of the bracket (10), and the upper movable seat (9) and the fixed seat (8) are externally rotatably connected to the top of the bracket (10).

7. The anti-flying stone mechanism for a fully mechanized mining face according to claim 2 is characterized by: The outside of the rotating rod (15) is slidably connected to the inside of the hollow shell (16).

8. The anti-flying stone mechanism for a fully mechanized mining face according to claim 2 is characterized by: One end of the (22) is rotatably connected to the bottom of the slider (20), and the other end of the (22) is rotatably connected to the top of the atomizing nozzle (23).

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