Goaf gas extraction device

Abstract

The utility model discloses a goaf gas extraction device, which relates to the technical field of gas extraction, and comprises a bottom plate, four uniformly distributed sliding shells I are arranged on the bottom plate, the four sliding shells I are fixedly arranged on the bottom plate, sliding blocks are arranged in the four sliding shells I in a sliding manner, and the four sliding blocks are jointly connected with a lifting plate; a transverse moving assembly is arranged on the lifting plate, a steering assembly is connected to the transverse moving assembly, an extraction assembly is connected to the steering assembly and comprises a connecting support, the connecting support is fixedly connected with the second sliding shell, an extraction mechanism is arranged close to the lower end of the connecting support, the extraction mechanism is connected with a storage mechanism, and the storage mechanism is connected with the connecting support. The transverse moving assembly and the steering assembly are used for driving the extraction section to transversely move left and right and adjusting the direction, the extraction mechanism in the extraction assembly is used for extracting goaf gas, and then the storage mechanism is used for storing the gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas extraction technical field especially relates to a goaf gas extraction device. BACKGROUND

[0002] With the deepening of coal mining, the problem of gas accumulation in goaf gradually appears. As a highly dangerous gas, gas not only reduces the ventilation quality of the mine and increases the risk of explosion accidents, but also may cause safety hazards to the personnel working in the mine. Therefore, the effective extraction of gas in goaf has become a crucial link in the safety production of coal mines. Although the existing gas extraction technology has made certain progress, it still faces some problems, such as low extraction efficiency, poor flexibility of equipment adjustment, and insufficient safety in gas storage and transportation process.

[0003] The existing goaf gas extraction device mostly relies on fixed extraction position or single extraction method, which is difficult to cope with complex geological environment and variable distribution of gas. Especially in large-scale mining operations, due to the non-uniformity of space and gas concentration in goaf, the traditional extraction device often cannot realize the full coverage of goaf gas, resulting in incomplete extraction of gas, and even the problem of the extraction device cannot be moved or adjusted in time. In addition, the existing equipment may fail during extraction, which seriously affects the extraction effect and affects the safety and production efficiency of the mine.

[0004] The patent with publication number CN118564754A discloses a coal mine goaf gas extraction device, which includes an extraction pipe and a gas cylinder. The outer part of the extraction pipe is provided with a cooling device, which includes a pneumatic unit and a reciprocating unit. The pneumatic unit includes an exhaust port, a communication bin, a metal cooling plate, a semiconductor refrigeration plate, and a flow pipe. The reciprocating unit includes a sliding strong magnetic block, a partition plate, a flow cavity, a magnetic pressing block, and a lightweight spring. The coal mine goaf gas extraction device cools the outer surface of the extraction pipe by flowing the cooling liquid into the metal cooling plate after entering the communication bin. The semiconductor refrigeration plate absorbs heat at one end and releases heat at the other end. The heat absorbed by the semiconductor refrigeration plate is absorbed by the metal cooling plate, keeping the cooling liquid at a low temperature, which helps to keep the overall extraction pipe at a low temperature and prevent gas explosion due to temperature rise.

[0005] This patent can only extract gas, but cannot store it, and cannot extract gas in multiple directions. Therefore, the utility model provides a goaf gas extraction device. UTILITY MODEL CONTENT

[0006] In view of the above technical problems, the utility model discloses a goaf gas extraction device, including the bottom plate, be provided with four evenly distributed sliding shell no.

[0007] Further, the horizontal moving assembly comprises a servo motor one, the servo motor one is fixedly installed on the lifting plate, the input end of the coupling one is connected to the output end of the servo motor one, the output end of the coupling one is connected with the lead screw, the coupling one is connected with the lifting plate, the lead screw is rotatably connected with the lifting plate, and the connecting block is threadedly connected to the lifting plate.

[0008] Further, the steering assembly comprises a rotating disc one, the rotating disc one is fixedly connected with the connecting block, a servo motor two is fixedly installed on one side of the rotating disc one, the input end of the coupling two is connected to the output end of the servo motor two, the output end of the coupling two is connected with the rotating shaft, the coupling two is fixedly connected with the rotating disc one, the rotating shaft is connected with the bevel gear one, the bevel gear two is engaged with the bevel gear one, the sliding shell no.

[0009] Further, the extraction assembly comprises a connecting support, the connecting support is fixedly connected with the sliding shell no. The extraction mechanism is arranged close to the lower end of the connecting support, the storage mechanism is connected with the extraction mechanism, and the storage mechanism is connected with the connecting support.

[0010] Further, the extraction mechanism comprises an air extraction shell, the air extraction shell is fixedly installed on the sliding shell no. The air inlet check valve no. The piston is slidably installed in the air extraction shell, the connecting rod is fixedly installed on the piston, the extraction mechanism further comprises a cylinder, the cylinder is fixedly installed on the connecting support, and the cylinder arm of the cylinder is connected with the connecting rod.

[0011] Further, the storage mechanism comprises a rotating disc two, the rotating disc two is rotatably installed on the connecting support, a plurality of evenly distributed storage boxes are installed on the rotating disc two, the air inlet check valve no. The bottom end of the rotating disc two is fixedly installed with the bevel gear four.

[0012] Further, the storage mechanism further comprises a servo motor three and an air outlet check valve, the upper and lower surfaces of the air outlet check valve are respectively connected with a first connecting pipe and a second connecting pipe, the first connecting pipe on the upper surface of the air outlet check valve is connected with the rotating disc two, the second connecting pipe on the lower surface of the air outlet check valve is connected with the air extraction shell, the servo motor three is fixedly installed on the connecting support, a bevel gear three is fixedly connected on the output end of the servo motor three, and the bevel gear three is engaged with a bevel gear four.

[0013] The utility model discloses have the advantages that: the utility model discloses through horizontal shift subassembly and steering subassembly realize driving and draw the interval left and right horizontal shift and the adjustment of direction, through the extraction mechanism in the extraction subassembly to the goaf gas is extracted, then through the storage mechanism carries out the gas storage. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model.

[0015] Figure 2 It is the horizontal shift subassembly structure schematic of the utility model Figure One .

[0016] Figure 3 It is the horizontal shift subassembly structure schematic of the utility model Figure Two .

[0017] Figure 4 It is the steering subassembly structure schematic diagram of the utility model.

[0018] Figure 5 It is the extraction subassembly structure schematic diagram of the utility model.

[0019] Figure 6 It is the extraction subassembly partial structure schematic diagram of the utility model.

[0020] Brief description of drawings: 1 - bottom plate;2 - sliding shell one;3 - sliding block;4 - lifting plate;5 - lifting hydraulic cylinder;6 - servo motor one;7 - shaft coupling one;8 - screw;9 - rotating disc one;10 - sliding shell two;11 - servo motor two;12 - shaft coupling two;13 - rotating shaft;14 - bevel gear one;15 - bevel gear two;16 - connecting support;17 - air cylinder;18 - air extraction shell;19 - servo motor three;20 - bevel gear three;21 - bevel gear four;22 - air outlet check valve;23 - rotating disc two;24 - air inlet check valve one;25 - piston;26 - air inlet check valve two;27 - connecting block;28 - connecting rod;29 - storage box. Specific implementation

[0021] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0023] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0024] Embodiment: as Figures 1-6 shown, a goaf gas extraction device, including the bottom plate 1, the bottom plate 1 is provided with four evenly distributed sliding shell one 2, four sliding shell one 2 are fixedly installed on the bottom plate 1, four sliding blocks 3 are slidably installed in four sliding shell one 2, four sliding blocks 3 are commonly connected with lifting plate 4, lifting plate 4 is provided with horizontal moving assembly, horizontal moving assembly is connected with steering assembly, steering assembly is connected with extraction assembly.

[0025] Horizontal moving assembly includes servo motor one 6, servo motor one 6 is fixedly installed on lifting plate 4, the output end of servo motor one 6 is connected with the input end of shaft coupling one 7, the output end of shaft coupling one 7 is connected with lead screw 8, shaft coupling one 7 is connected with lifting plate 4, lead screw 8 is rotatably connected with lifting plate 4, and connecting block 27 is screw-connected on lifting plate 4.

[0026] The steering assembly comprises a rotating disc 9, the rotating disc 9 is fixedly connected with the connecting block 27, one side of the rotating disc 9 is fixedly installed with a servo motor 11, the output end of the servo motor 11 is connected with the input end of a coupling 12, the output end of the coupling 12 is connected with a rotating shaft 13, the coupling 12 is fixedly connected with the rotating disc 9, the rotating shaft 13 is connected with a bevel gear 14, the bevel gear 14 is meshed with a bevel gear 15, the bevel gear 15 is fixedly installed with a sliding shell 10, and the sliding shell 10 is rotatably connected with the rotating disc 9.

[0027] The extraction assembly comprises a connecting support 16, the connecting support 16 is fixedly connected with the sliding shell 10, an extraction mechanism is arranged near the lower end of the connecting support 16, the extraction mechanism is connected with a storage mechanism, and the storage mechanism is connected with the connecting support 16.

[0028] The extraction mechanism comprises an air extraction shell 18, the air extraction shell 18 is fixedly installed on the sliding shell 10, an air inlet check valve 26 is arranged near the first end of the air extraction shell 18, a piston 25 is slidably installed in the air extraction shell 18, the piston 25 is fixedly installed with a connecting rod 28, the extraction mechanism further comprises an air cylinder 17, the air cylinder 17 is fixedly installed on the connecting support 16, and the cylinder arm of the air cylinder 17 is connected with the connecting rod 28.

[0029] The storage mechanism comprises a rotating disc 23, the rotating disc 23 is rotatably installed on the connecting support 16, a plurality of storage boxes 29 are installed on the rotating disc 23, the plurality of storage boxes 29 are uniformly distributed, an air inlet check valve 24 is installed on each of the plurality of storage boxes 29, a bevel gear 21 is fixedly installed at the bottom end of the rotating disc 23, the storage mechanism further comprises a servo motor 19 and an air outlet check valve 22, the first connecting pipe and the second connecting pipe are respectively connected to the upper surface and the lower surface of the air outlet check valve 22, the first connecting pipe on the upper surface of the air outlet check valve 22 is connected with the rotating disc 23, the second connecting pipe on the lower surface of the air outlet check valve 22 is connected with the air extraction shell 18, the servo motor 19 is fixedly installed on the connecting support 16, the output end of the servo motor 19 is fixedly connected with a bevel gear 20, and the bevel gear 20 is meshed with the bevel gear 21.

[0030] In daily use, the device is placed at the place of extraction, then the lifting hydraulic cylinder 5 is started, the cylinder arm of the lifting hydraulic cylinder 5 drives the lifting plate 4 to rise, the servo motor two 11 is started, the output end of the servo motor two 11 drives the rotating shaft 13 to rotate through the shaft coupling two 12, the rotating shaft 13 drives the bevel gear two 15 to rotate through the bevel gear one 14, the bevel gear two 15 drives the sliding shell two 10 to rotate, the sliding shell two 10 drives the extraction mechanism to move, the servo motor one 6 is started, the output end of the servo motor one 6 drives the lead screw 8 to rotate through the shaft coupling one 7, the lead screw 8 drives the rotating disc one 9 to move through the connecting block 27, the extraction mechanism is used for extracting gas in multiple directions, the air cylinder 17 is started, the cylinder arm of the air cylinder 17 drives the connecting rod 28 to move, the connecting rod 28 drives the piston 25 to slide in the air extraction shell 18, the gas enters the air extraction shell 18 through the air inlet check valve two 26, then the gas in the air extraction shell 18 is stored in the storage box 29 through the second connecting pipe, the air outlet check valve 22, the first connecting pipe and the air inlet check valve one 24, the servo motor three 19 is started, the output end of the servo motor three 19 drives the bevel gear four 21 to rotate through the bevel gear three 20, the bevel gear four 21 drives the rotating disc two 23 to rotate on the connecting bracket 16, the gas is stored in the multiple storage boxes 29 on the rotating disc two 23.

[0031] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A gas extraction device for goaf areas, characterized in that: Includes a base plate (1), on which four evenly distributed sliding outer shells (2) are provided. All four sliding outer shells (2) are fixedly installed on the base plate (1). Sliding blocks (3) are slidably installed inside each of the four sliding outer shells (2). The four sliding blocks (3) are connected to a lifting plate (4). A transverse moving component is provided on the lifting plate (4). A steering component is connected to the transverse moving component. An extraction component is connected to the steering component.

2. The gas extraction device for goaf areas as described in claim 1, characterized in that: The transverse component includes a servo motor (6), which is fixedly mounted on the lifting plate (4). The output end of the servo motor (6) is connected to the input end of a coupling (7), and the output end of the coupling (7) is connected to a lead screw (8). The coupling (7) is connected to the lifting plate (4), and the lead screw (8) is rotatably connected to the lifting plate (4). A connecting block (27) is threaded onto the lifting plate (4).

3. The gas extraction device for goaf areas as described in claim 2, characterized in that: The steering assembly includes a rotating disk (9), which is fixedly connected to a connecting block (27). A servo motor (11) is fixedly installed on one side of the rotating disk (9). The output end of the servo motor (11) is connected to the input end of a coupling (12). The output end of the coupling (12) is connected to a rotating shaft (13). The coupling (12) is fixedly connected to the rotating disk (9). A bevel gear (14) is connected to the rotating shaft (13). A bevel gear (15) meshes with the bevel gear (14). A sliding housing (10) is fixedly installed on the bevel gear (15). The sliding housing (10) is rotatably connected to the rotating disk (9).

4. The gas extraction device for goaf areas as described in claim 3, characterized in that: The extraction assembly includes a connecting bracket (16), which is fixedly connected to the sliding outer shell (10). An extraction mechanism is provided near the lower end of the connecting bracket (16), and the extraction mechanism is connected to a storage mechanism, which is connected to the connecting bracket (16).

5. A goaf gas extraction device as described in claim 4, characterized in that: The extraction mechanism includes an air extraction shell (18), which is fixedly installed on a sliding shell (10). An air inlet one-way valve (26) is provided at the first end near the air extraction shell (18). A piston (25) is slidably installed inside the air extraction shell (18). A connecting rod (28) is fixedly installed on the piston (25). The extraction mechanism also includes a cylinder (17), which is fixedly installed on a connecting bracket (16). The cylinder arm of the cylinder (17) is connected to the connecting rod (28).

6. The gas extraction device for goaf areas as described in claim 5, characterized in that: The storage mechanism includes a rotating disk II (23), which is rotatably mounted on a connecting bracket (16). Multiple evenly distributed storage boxes (29) are installed on the rotating disk II (23), and each of the multiple storage boxes (29) is equipped with an air intake one-way valve I (24). A bevel gear IV (21) is fixedly installed at the bottom end of the rotating disk II (23).

7. A goaf gas extraction device as described in claim 6, characterized in that: The storage mechanism also includes a servo motor three (19) and an exhaust one-way valve (22). The upper and lower sides of the exhaust one-way valve (22) are respectively connected to a first connecting pipe and a second connecting pipe. The first connecting pipe on the upper side of the exhaust one-way valve (22) is connected to the rotating disk two (23), and the second connecting pipe on the lower side of the exhaust one-way valve (22) is connected to the air extraction shell (18). The servo motor three (19) is fixedly installed on the connecting bracket (16). A bevel gear three (20) is fixedly connected to the output end of the servo motor three (19). The bevel gear three (20) meshes with the bevel gear four (21).

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