Automatic explosion-proof door type following machine moving device for underground coal mine

Abstract

The utility model relates to the field of coal mine safety device especially relates to a kind of automatic explosion-proof door type follow machine mobile device for underground coal mine, including automatic explosion-proof device and door type follow machine mobile device;Door type follow machine mobile device includes rectangular frame support panel, and hydraulic telescopic support leg is set in the left and right sides of support panel, and the lower part of the hydraulic telescopic support leg of same side is connected with a support rod, and walking wheel is set in the lower part of support rod, and support hydraulic cylinder is respectively set in the left and right sides on the upper portion of support panel, and the telescopic end of support hydraulic cylinder is set along left-right direction outward;One suspension beam is set in the frame of rectangular frame support panel along front-back direction;Automatic explosion-proof device upper portion is connected with suspension longitudinal beam by hanging vertical pole;Suspension longitudinal beam is fixed in parallel on suspension beam.The utility model moves and fixes by door type follow machine mobile device to automatic explosion-proof device, improves its convenience of moving with working face advancing, and can reduce anchor rod construction and worker's repeated disassembly and suspension work.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety devices, and in particular to an automatic explosion-proof door-type mobile device for use in underground coal mines. Background Technology

[0002] Coal mining operations are characterized by complex and variable environments. Gas and coal dust explosions at the coal face constantly threaten the lives of underground workers and the normal operation of equipment. In the safety protection system of underground coal mines, automatic explosion-proof devices play a crucial "firewall" role. They can activate rapidly at the moment of a gas or coal dust explosion, forming an explosion-proof zone that effectively prevents the further spread of the explosion, minimizing the damage and buying valuable time for personnel evacuation and rescue operations. They are a solid line of defense for ensuring safe production in coal mines.

[0003] In use, the automatic explosion-proof device needs to be anchored and suspended from the roof of the roadway on both sides of the coal face, at a predetermined distance, such as 60-200m. As the coal face is continuously mined (advancing), the automatic explosion-proof device also needs to be moved forward. However, since the coal face advances several meters every day, it is necessary to continuously install anchors to move and fix the automatic explosion-proof device, which consumes a lot of manpower and resources and is inefficient. In addition, because it needs to be fixed to the roof of the roadway, operators have to climb up and down ladders to disassemble and install it, which is not only labor-intensive but also poses many safety risks such as falls from heights and injuries from falling rocks.

[0004] Therefore, researching an automatic explosion-proof device that can be easily moved and fixed along with the coal mining face is of great significance for solving the above-mentioned technical problems and maintaining safe production in the mine. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes an automatic explosion-proof gantry-type following moving device for underground coal mines, comprising an automatic explosion-proof device and a gantry-type following moving device. The gantry-type following moving device includes a rectangular frame support panel, with hydraulically retractable support legs arranged on the left and right sides of the support panel. A support rod is connected to the lower part of each hydraulically retractable support leg on the same left and right sides. A traveling wheel is provided at the lower part of each support rod. Support hydraulic cylinders are respectively arranged on the left and right sides of the upper part of the support panel, with the telescopic ends of the support hydraulic cylinders extending outwards in the left-right direction. A suspension beam is arranged in the front-back direction within the frame of the rectangular frame support panel. A hanging longitudinal beam is connected to the upper part of the automatic explosion-proof device via a hanging vertical rod. The hanging longitudinal beam is fixed parallel to the suspension beam.

[0006] Preferably, a scissor structure is provided between two adjacent hydraulically retractable support legs in the front-rear direction. The upper part of the scissor structure is hinged to the support panel, and the lower part is hinged to the support rod.

[0007] Preferably, the outer end of the telescopic end of the supporting hydraulic cylinder is connected to the supporting pad.

[0008] Preferably, the suspension beam is centrally located in the left-right direction, and a reinforcing beam located in the left-right direction is used to connect the suspension beam and the support panel.

[0009] Preferably, the automatic explosion-proof device includes an ultrafine dry powder storage bin, an air pressure detection system, a first circular receiving plate, a transmission rod, and a second circular receiving plate connected in sequence from front to back. The ultrafine dry powder storage bin and the transmission rod are fixedly connected to the hanging longitudinal beam via a hanging vertical rod.

[0010] Preferably, a mining gyroscope is also provided on the support panel to determine the balance of the gantry crane moving device.

[0011] Preferably, a monitoring camera is also provided on the support panel, and the camera is communicatively connected to the ground monitoring system.

[0012] Preferably, an explosion-proof motor is also provided on the support panel to provide power to the automatic explosion-proof door-type following moving device.

[0013] Preferably, a hydraulic pump station is also provided, which is connected to the hydraulic retractable support leg and the support hydraulic cylinder through hydraulic pipelines, and is used to control the retractable movement of the hydraulic retractable support leg and the support hydraulic cylinder; the hydraulic pump station is set up independently.

[0014] Preferably, the hydraulic retractable support leg is a hydraulic telescopic device with a multi-section telescopic structure.

[0015] The beneficial technical effects of this utility model are as follows: 1. This utility model moves and fixes the automatic explosion-proof device through a gantry-type following moving device, which improves its convenience of moving with the working face and helps it always be in the best explosion-proof protection position; and it can reduce the construction of anchor bolts and the repeated disassembly and suspension work of workers, greatly reducing the workload of installing the automatic explosion-proof device.

[0016] 2. The automatic explosion-proof door-type following moving device of this utility model adopts a door-shaped frame structure, and the hydraulic telescopic support legs can be retracted in the working state, which greatly reduces its impact on the normal passage of personnel and materials in the roadway and the normal operation of underground equipment. Attached Figure Description

[0017] The accompanying drawings constituting this utility model are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the overall structure of the automatic explosion-proof door-type following mobile device of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the automatic explosion-proof device of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the gantry-type following-machine moving device of this utility model;

[0021] Figure 4 This is a longitudinal sectional view of the automatic explosion-proof door-type following moving device of this utility model when used in the roadway;

[0022] Figure 5 This is a front view of the automatic explosion-proof door-type following moving device of this utility model in the working state when used in the roadway;

[0023] Figure 6 This is a front view of the automatic explosion-proof door-type following moving device of this utility model in the moving state when used in the roadway;

[0024] Explanation of reference numerals in the attached drawings: 1. Automatic explosion-proof device; 2. Gantry-type following moving device; 3. Monitoring camera device; 4. Mining gyroscope; 5. Explosion-proof motor; 6. Hydraulic pump station; 7. Ground monitoring system; 8. Hanging vertical rod; 9. Roadway; 11. Circular receiving plate; 12. Transmission rod; 13. Air pressure detection system; 14. Hanging longitudinal beam; 15. Ultrafine dry powder storage bin; 21. Support panel; 22. Support hydraulic cylinder; 23. Support pad; 24. Hydraulic telescopic support leg; 25. Support rod; 26. Scissor lift structure; 27. Traveling wheel; 28. Suspension beam; 29. ​​Reinforcing beam. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1-3The present invention provides an automatic explosion-proof gantry-type moving device for use in coal mines, including an automatic explosion-proof device 1 and a gantry-type moving device 2. The automatic explosion-proof device 1 is fixed on the gantry-type moving device 2. The gantry-type moving device 2 can move along the length (longitudinal direction) of the roadway 9 and can be fixed relative to the roadway 9 when it moves to a set position. The space enclosed by the gantry-type moving device 2 and the bottom surface of the roadway 9 can allow underground personnel and materials to pass through normally and equipment to work normally.

[0028] like Figures 1-2 As shown, the automatic explosion-proof device 1 includes, from front to back, an ultrafine dry powder storage bin 15, a pressure detection system 13, a circular receiving plate 11 (defined as the first circular receiving plate for easy distinction), and a transmission rod 12, a second circular receiving plate 11 (defined as the second circular receiving plate for easy distinction). The automatic explosion-proof device 1 is prior art and will not be described in detail here. A hanging assembly is provided on the ultrafine dry powder storage bin 15 and the transmission rod 12. The hanging assembly includes a hanging vertical rod 8 and a hanging longitudinal beam 14. The hanging longitudinal beam 14 is arranged parallel to the automatic explosion-proof device 1 and located at the upper part of the automatic explosion-proof device 1. The ultrafine dry powder storage bin 15 and the transmission rod 12 are fixedly connected to the hanging longitudinal beam 14 via the hanging vertical rod 8.

[0029] In this utility model, the front-back direction refers to the length direction of the roadway 9, the left-right direction refers to the width direction of the roadway 9, and the front side refers to the advancing direction of the coal mining face, that is, the forward direction of the gantry-type following moving device 2.

[0030] like Figure 1 , Figure 3As shown, the gantry-type following-machine moving device 2 includes a rectangular frame support panel 21, the length of which is greater than its width. Several sets of hydraulically retractable support legs 24 are symmetrically arranged on the left and right sides of the support panel 21. In this embodiment, three hydraulically retractable support legs 24 (front end, middle end, and rear end) are evenly arranged on the left and right sides along the front-to-back direction. A support rod 25 is connected to the lower part of each hydraulically retractable support leg 24 on the same left and right sides. A traveling wheel 27 is provided at the lower part of the support rod 25. A scissor structure 26 is provided between two adjacent hydraulically retractable support legs 24 along the front-to-back direction. The upper part of the scissor structure 26 is hinged to the support panel 21, and the lower part is hinged to the support rod 25. The telescopic structure is well-known in the art and will not be described in detail here. Several sets of supporting hydraulic cylinders 22 are symmetrically arranged on the left and right sides of the upper part of the supporting panel 21. The telescopic ends of the supporting hydraulic cylinders 22 are arranged outward in the left and right directions. The outer ends of the telescopic ends of the supporting hydraulic cylinders 22 are connected to the supporting pad 23. In this embodiment, three supporting hydraulic cylinders 22 (front end, middle end, and rear end) are evenly arranged on the left and right sides in the front and back directions respectively. A suspension beam 28 is arranged in the front and back directions inside the frame of the rectangular frame supporting panel 21. The suspension beam 28 is centered in the left and right directions, and a reinforcing beam 29 arranged in the left and right directions is used to connect the suspension beam 28 and the supporting panel 21 to improve the stability of the suspension beam 28.

[0031] The hanging longitudinal beam 14 is fixed on the suspension beam 28 and the length direction is consistent, thereby fixing the automatic explosion-proof device 1 on the gantry-type following moving device 2.

[0032] As a preferred embodiment, a mining gyroscope 4 is also provided on the support panel 21 to determine the balance of the gantry-type following moving device 2.

[0033] As a preferred embodiment, a monitoring camera 3 is also provided on the support panel 21 to monitor the operation of the automatic explosion-proof door-type mobile device and its surrounding environment. The camera 3 is connected to the ground monitoring system 7 and can notify relevant operators from the ground when special circumstances occur with the automatic explosion-proof door-type mobile device.

[0034] As a preferred embodiment, an explosion-proof motor 5 is also provided on the support panel 21 to provide power to the automatic explosion-proof door-type following mobile device, including powering components that require electrical energy, such as the monitoring camera device 3.

[0035] As a preferred embodiment, a hydraulic pump station 6 is also provided. The hydraulic pump station 6 is connected to the hydraulic retractable support leg 24 and the support hydraulic cylinder 22 through hydraulic pipelines, and is used to control the hydraulic retractable support leg 24 and the support hydraulic cylinder 22 to perform retractable movements. The hydraulic pump station 6 is set independently. Alternatively, two hydraulic pump stations can be set, one to control the hydraulic retractable support leg 24 and the other to control the support hydraulic cylinder 22.

[0036] As a preferred embodiment, the hydraulic retractable support leg 24 is a hydraulic telescopic device with a multi-section (e.g., 3-4 sections) telescopic structure.

[0037] Example 2

[0038] Based on Embodiment 1, an automatic explosion-proof door-type following mobile device for use in underground coal mines, such as Figures 4-6 As shown in Embodiment 2 of this utility model, an automatic explosion-proof method for coal mining faces is also proposed, comprising the following steps:

[0039] S1: The coal mining face is set up and ready for mining; in the roadways 9 on both sides of the coal mining face, at a first set distance from the coal mining face, such as 200m away from the coal mining face, an automatic explosion-proof door-type moving device is set up.

[0040] S2: As Figure 4-5 As shown, the automatic explosion-proof door-type following mobile device is leveled; then, the hydraulic pump station 6 controls the support hydraulic cylinder 22 to extend and push the support pad 23 to support the two side walls of the roadway 9, thus fixing the automatic explosion-proof door-type following mobile device to the roadway 9 as a whole, and retracting the hydraulic telescopic support leg 24 to reduce the impact of the hydraulic telescopic support leg 24, support rod 25, scissor structure 26, and traveling wheel 27 on the normal passage of personnel and materials and the normal operation of equipment in the roadway 9;

[0041] S3: As Figure 4 As shown, coal mining operations are being carried out at the coal mining face. When an accident such as a gas or coal dust explosion occurs at the coal mining face, the shock wave generated by the explosion triggers the automatic explosion-proof device 1 to work. The ultra-fine dry powder storage bin 15 sprays out atomized dry powder to form an explosion-proof zone, effectively preventing the further spread of the explosion.

[0042] S4: When the coal mining face is mined one or two steps at a time, or once a day, the position of the automatic explosion-proof door-type following moving device is adjusted once; specifically, the hydraulic retractable support leg 24 is extended by the hydraulic pump station 6 until the traveling wheel 27 touches the bottom, and the support hydraulic cylinder 22 is retracted by the hydraulic pump station 6 to release the automatic explosion-proof door-type following moving device from the roadway 9; the automatic explosion-proof door-type following moving device is moved to the first set distance from the coal mining face;

[0043] S5: Repeat steps S2-S4 until the entire working face is finished.

[0044] As a preferred embodiment of the second embodiment, in step S2, the flatness of the automatic explosion-proof door-type following moving device is determined and leveled based on the mining gyroscope 4 installed on the support panel 21.

[0045] As a preferred embodiment of the second embodiment, the ground monitoring system 7 acquires the working status of the automatic explosion-proof door-type moving device. When the automatic explosion-proof door-type moving device encounters special circumstances (such as falling or tilting), it can notify the relevant underground operators from the ground.

[0046] As a preferred embodiment of the second embodiment, in step S2, when the automatic explosion-proof door-type following moving device moves to a first set distance from the coal mining face and is unbalanced, it is balanced by placing pads under the traveling wheels 27 or the support rods 25, or by supporting it with hydraulic jacks.

[0047] In this utility model, "following the machine" refers to the coal mining machine at the coal face, which can move forward continuously as the coal mining machine advances. "Gantry" in this utility model refers to the fact that the support panel 21, hydraulically retractable support legs 24, support rods 25, scissor structure 26, and traveling wheels 27 can form a portal frame structure that matches the rectangular cross-section of the roadway 9, without affecting the normal passage of personnel and materials or the normal operation of underground equipment within the roadway 9.

[0048] Of course, the above description is only a preferred embodiment of the present utility model. The present utility model is not limited to the above-described embodiments. It should be noted that any equivalent substitutions or obvious modifications made by those skilled in the art under the guidance of this specification fall within the scope of this specification and should be protected by the present utility model.

Claims

1. An automatic explosion-proof gantry-type following-machine moving device for use in underground coal mines, comprising an automatic explosion-proof device and a gantry-type following-machine moving device; characterized in that, The gantry-type following-machine moving device includes a rectangular frame support panel. Hydraulic retractable support legs are provided on the left and right sides of the support panel. A support rod is connected to the lower part of each hydraulic retractable support leg on the same left and right sides. A traveling wheel is provided at the lower part of each support rod. Support hydraulic cylinders are respectively provided on the left and right sides of the upper part of the support panel, with the telescopic ends of the support hydraulic cylinders extending outwards in the left-right direction. A suspension beam is provided inside the rectangular frame support panel in the front-back direction. A hanging longitudinal beam is connected to the upper part of the automatic explosion-proof device via a hanging vertical rod. The hanging longitudinal beam is fixed parallel to the suspension beam.

2. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, A scissor structure is provided between two adjacent hydraulically retractable support legs along the front-to-back direction. The upper part of the scissor structure is hinged to the support panel, and the lower part is hinged to the support rod.

3. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, The outer end of the extension and retraction end of the supporting hydraulic cylinder is connected to the supporting pad.

4. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, The suspension beam is centered in the left-right direction, and a reinforcing beam in the left-right direction connects the suspension beam and the support panel.

5. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, The automatic explosion-proof device includes an ultrafine dry powder storage bin, an air pressure detection system, a first circular receiving plate, a transmission rod, and a second circular receiving plate connected in sequence from front to back. The ultrafine dry powder storage bin and the transmission rod are fixedly connected to the hanging longitudinal beam via a hanging vertical rod.

6. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, A mining gyroscope is also installed on the support panel to determine the balance of the gantry crane moving device.

7. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, A monitoring camera is also installed on the support panel, and the camera is communicatively connected to the ground monitoring system.

8. The automatic explosion-proof door-type following mobile device according to claim 1, characterized in that, An explosion-proof motor is also installed on the support panel to provide power to the automatic explosion-proof door-type following moving device.

9. The automatic explosion-proof door-type following mobile device according to claim 1 or 2, characterized in that, A hydraulic pump station is also provided, which is connected to the hydraulic retractable support leg and the support hydraulic cylinder through hydraulic pipelines, and is used to control the retractable movement of the hydraulic retractable support leg and the support hydraulic cylinder; the hydraulic pump station is set up independently.

10. The automatic explosion-proof door-type following-machine moving device according to claim 1, characterized in that, The hydraulic retractable support leg is a hydraulic telescopic device with a multi-section telescopic structure.

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