Close-distance coal seam roadway roof supporting device

Abstract

The utility model discloses a close-distance coal seam roadway roof supporting device which comprises a bottom plate, a cross beam, two side protection plates, two telescopic assemblies, a metal net, an anchor rod and a pressure monitoring assembly. A plurality of fixing parts are mounted at the bottom of the bottom plate; the bottom of the cross beam is detachably connected with a plurality of hydraulic lifting assemblies, and the bottoms of the hydraulic lifting assemblies are fixedly connected with the bottom plate. The two side protection plates are rotationally connected to the two ends of the cross beams correspondingly. The two telescopic assemblies are hinged to the cross beam through supports respectively, and the telescopic ends of the two telescopic assemblies are hinged to the bottom faces of the protection plates on the two sides respectively. The metal net is mounted at the tops of the cross beams; a plurality of anchor rods are arranged, and the pressure monitoring assembly is mounted on the metal net. Self-adaptive supporting and adjusting of the roadway top plate and the side protection plate can be achieved, the stability of a supporting system is improved, gangue is blocked, and the safety of operators is protected; the top plate pressure can be monitored in real time, the overpressure risk can be early warned, automatic operation is achieved, manual operation errors are reduced, and working efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel roof support, in particular to a close-distance coal seam tunnel roof support device. Background Art

[0002] In the mining process of coal mines and other mineral resources, the close-range coal seam roadway roof support device is an important equipment to ensure the safe production of the mine. The traditional close-range coal seam roadway roof support device usually adopts a fixed structure design, which mainly includes bottom plates, beams and other components, which are fixed to the roadway roof by anchor rods to provide support and protection for the roadway.

[0003] However, due to its fixed structure, the existing support device cannot be adaptively adjusted according to the height changes of the tunnel roof and geological conditions, resulting in insufficient stability of the support device, which is prone to deformation or failure when the tunnel roof is subjected to pressure changes. Secondly, since there is no side guard plate, it cannot effectively block objects such as gangue that may be generated in the tunnel, posing a threat to the safety of workers below. In addition, due to the lack of effective pressure monitoring components, the existing support device cannot monitor the pressure changes of the tunnel roof in real time, and cannot promptly detect and deal with overpressure risks, increasing the possibility of accidents.

[0004] Therefore, a roof support device for close-range coal seam roadway is proposed. Utility Model Content

[0005] The utility model aims to provide a roof support device for a close-range coal seam roadway, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a close-range coal seam roadway roof support device, comprising:

[0007] A bottom plate, wherein a plurality of fixing parts are installed at the bottom of the bottom plate;

[0008] A crossbeam, wherein a plurality of crossbeams are arranged side by side, a plurality of hydraulic lifting assemblies are detachably connected to the bottom of the crossbeam, and the bottom of the hydraulic lifting assemblies is fixedly connected to the bottom plate;

[0009] Two side guard plates, the two side guard plates are rotatably connected to the two ends of the plurality of cross beams respectively;

[0010] Two telescopic components, the two telescopic components are respectively hinged on the crossbeam through brackets, and the telescopic ends of the two telescopic components are respectively hinged to the bottom surfaces of the two side guard plates;

[0011] A metal mesh installed on the top of the plurality of beams;

[0012] Anchor rods, wherein a plurality of anchor rods are provided, and the plurality of anchor rods are all installed on the crossbeam;

[0013] a pressure monitoring assembly, the pressure monitoring assembly being mounted on the metal mesh;

[0014] Wherein, a control system is installed on the base plate, an alarm element is installed on one of the beams, and the hydraulic lifting assembly, the hydraulic lifting assembly, the pressure monitoring assembly and the alarm element are all electrically connected to the control system.

[0015] According to a close-range coal seam tunnel roof support device provided by the utility model, a plurality of connecting columns are installed at the bottom of the crossbeam, an upper wing plate is installed at the bottom of the connecting column, and the top of the hydraulic lifting assembly is detachably connected to the upper wing plate.

[0016] According to a close-range coal seam tunnel roof support device provided by the utility model, the hydraulic lifting assembly includes a first hydraulic rod installed on the base plate, a lower wing plate is fixedly installed on the piston end of the first hydraulic rod, and the lower wing plate is detachably connected to the upper wing plate by a plurality of fastening bolts; and the plurality of the first hydraulic rods are all electrically connected to the control system.

[0017] According to a close-range coal seam tunnel roof support device provided by the utility model, the telescopic assembly includes a second hydraulic rod electrically connected to the control system, the bottom of the second hydraulic rod is hinged to the bracket, and the top is hinged to the bottom surface of the side guard plate; the two second hydraulic rods are respectively arranged corresponding to the two side guard plates.

[0018] According to a close-range coal seam tunnel roof support device provided by the utility model, the pressure monitoring component includes a plurality of pressure sensors, a plurality of the pressure sensors are installed at intervals on the metal mesh, and the plurality of the pressure sensors are electrically connected to the control system.

[0019] According to a close-distance coal seam tunnel roof support device provided by the utility model, a metal side net is installed on the top surface of the side guard plate, and the two metal side nets are rotatably connected to the two sides of the metal net respectively.

[0020] According to a close-range coal seam tunnel roof support device provided by the utility model, the fixing part includes an insertion rod, the bottom of the insertion rod is fixed with a tip, the top of the insertion rod is fixed to the bottom surface of the bottom plate, and a plurality of the insertion rods are arranged at equal intervals.

[0021] According to a close-range coal seam tunnel roof support device provided by the utility model, two cross beams are arranged side by side, a plurality of connecting columns are fixedly connected to the bottom of the cross beam at equal intervals, and a plurality of anchor rods are installed on the cross beam at equal intervals.

[0022] According to a close-distance coal seam tunnel roof support device provided by the utility model, the cross-sectional shape of the support is L-shaped.

[0023] The utility model discloses the following technical effects:

[0024] The utility model realizes the support and adaptive adjustment of the tunnel roof by adopting a combination of a hydraulic lifting component and a telescopic component. The hydraulic lifting component can be automatically adjusted according to the height change of the tunnel roof, thereby improving the stability of the entire support system;

[0025] The utility model can drive the two side guard plates to rotate through two sets of telescopic components. When the tunnel roof is subjected to pressure changes, the side guard plates can be adaptively adjusted along with the telescopic components to adapt to different tunnel shapes and geological conditions, thereby maintaining the support stability and adaptability of the support device; at the same time, the two side guard plates can effectively block objects such as gangue that may be generated in the tunnel, preventing them from rolling or sliding to threaten the workers below, thereby protecting the safety of pedestrians;

[0026] The utility model can monitor the pressure change of the tunnel roof in real time through the pressure monitoring component and the alarm element. When the pressure on the tunnel roof exceeds the set threshold, the alarm element will immediately send out an alarm signal to remind the operator to take timely measures to deal with it, thereby reducing the possibility of accidents.

[0027] The utility model can realize the automatic operation of the hydraulic lifting component, the telescopic component and the alarm element through the control system, so that the installation, adjustment and maintenance processes of the support device can be automatically operated through the control system, reducing the complexity and error rate of manual operation and improving work efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the installation of the cross beam and the first hydraulic rod in the utility model.

[0031] Among them, 1. bottom plate; 2. cross beam; 3. side guard plate; 4. bracket; 5. metal mesh; 6. anchor rod; 7. control system; 8. connecting column; 9. upper wing plate; 10. first hydraulic rod; 11. lower wing plate; 12. second hydraulic rod; 13. pressure sensor; 14. metal side mesh; 15. plug rod; 16. tip. DETAILED DESCRIPTION

[0032] 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.

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Reference Figure 1-Figure 2 The utility model provides a roof support device for a close-range coal seam roadway, comprising:

[0035] A base plate 1, wherein a plurality of fixing parts are installed at the bottom of the base plate 1;

[0036] A plurality of cross beams 2 are arranged side by side, and a plurality of hydraulic lifting components are detachably connected to the bottom of the cross beams 2, and the bottom of the hydraulic lifting components is fixedly connected to the bottom plate 1;

[0037] The two side guard plates 3 are rotatably connected to the two ends of the plurality of beams 2;

[0038] Two telescopic components, the two telescopic components are respectively hinged on the crossbeam 2 through the bracket 4, and the telescopic ends of the two telescopic components are respectively hinged to the bottom surfaces of the guard plates 3 on both sides;

[0039] A metal mesh 5, which is installed on the top of the plurality of beams 2;

[0040] Anchor rods 6, a plurality of anchor rods 6 are provided, and the plurality of anchor rods 6 are installed on the crossbeam 2; the support effect is effectively improved by the combined use of the metal mesh 5 and the anchor rods 6; the top of the anchor rods 6 passes through the coal seam and the coal shale and extends into the internal stable rock layer;

[0041] A pressure monitoring component, the pressure monitoring component is installed on the metal mesh 5;

[0042] Among them, a control system 7 is installed on the bottom plate 1, an alarm element is installed on one of the crossbeams 2, and the hydraulic lifting component, telescopic component, pressure monitoring component and alarm element are all electrically connected to the control system 7;

[0043] The control system 7 can be set according to the specific use environment, for example, it can be controlled by a single chip microcomputer or by using a PLC, ARM (Advanced RISC Machine: high-end reduced instruction set machine), FPGA (Field-Programmable Gate Array: Field Programmable Gate Array) and other methods, which are not specifically limited in this embodiment;

[0044] With such arrangement, the utility model realizes the support and adaptive adjustment of the tunnel roof by adopting the combination of hydraulic lifting components and telescopic components. The hydraulic lifting components can be automatically adjusted according to the height change of the tunnel roof, thereby improving the stability of the entire support system;

[0045] The utility model can drive the two side guard plates 3 to rotate through two sets of telescopic components. When the tunnel roof is subjected to pressure changes, the side guard plates 3 can be adaptively adjusted along with the telescopic components to adapt to different tunnel shapes and geological conditions, thereby maintaining the support stability and adaptability of the support device; at the same time, the two side guard plates 3 can effectively block objects such as gangue that may be generated in the tunnel, preventing them from rolling or sliding to threaten the workers below, thereby protecting the safety of pedestrians;

[0046] The utility model can monitor the pressure change of the tunnel roof in real time through the pressure monitoring component and the alarm element. When the pressure on the tunnel roof exceeds the set threshold, the alarm element will immediately send out an alarm signal to remind the operator to take timely measures to deal with it, thereby reducing the possibility of accidents.

[0047] The utility model can realize the automatic operation of the hydraulic lifting component, the telescopic component and the alarm element through the control system 7, so that the installation, adjustment and maintenance processes of the support device can be automatically operated through the control system, reducing the complexity and error rate of manual operation and improving work efficiency and safety.

[0048] According to a further optimized solution, a plurality of connecting columns 8 are installed at the bottom of the cross beam 2, an upper wing plate 9 is installed at the bottom of the connecting columns 8, and the top of the hydraulic lifting assembly is detachably connected to the upper wing plate 9.

[0049] Further optimized solution, the hydraulic lifting assembly includes a first hydraulic rod 10 installed on the bottom plate 1, the piston end of the first hydraulic rod 10 is fixedly installed with a lower wing plate 11, and the lower wing plate 11 is detachably connected to the upper wing plate 9 by a plurality of fastening bolts; the plurality of first hydraulic rods 10 are electrically connected to the control system 7;

[0050] When it is necessary to adjust the height of the support device, the hydraulic lifting assembly is started through the control system 7. At this time, the piston end of the first hydraulic rod 10 drives the lower wing plate 11 to rise or fall, and cooperates with the upper wing plate 9 to achieve a detachable connection by tightening bolts, thereby driving the cross beam 2 and the metal mesh 5 to rise and fall. The detachable connection between the lower wing plate 11 and the upper wing plate 9 enables rapid installation and disassembly between the hydraulic lifting assembly and the cross beam 2, thereby improving work efficiency.

[0051] To further optimize the solution, the telescopic assembly includes a second hydraulic rod 12 electrically connected to the control system 7, the bottom of the second hydraulic rod 12 is hinged to the bracket 4, and the top is hinged to the bottom surface of the side guard plate 3; the two second hydraulic rods 12 are respectively arranged corresponding to the guard plates 3 on both sides; the telescopic movement of the second hydraulic rod 12 drives the side guard plate 3 to rotate around the bracket 4, so as to adapt to different tunnel shapes and geological conditions. This adaptive adjustment ensures the stability of the support device and effectively blocks objects such as gangue that may be generated in the tunnel.

[0052] According to a further optimization scheme, the pressure monitoring component includes a plurality of pressure sensors 13, and the plurality of pressure sensors 13 are installed at intervals on the metal mesh 5, and the plurality of pressure sensors 13 are electrically connected to the control system 7; when the pressure exceeds the set threshold, the pressure sensor 13 transmits a signal to the control system 7, and the control system 7 immediately activates the alarm element to send out an alarm signal, reminding the operator to take timely measures to deal with the problem.

[0053] To further optimize the solution, a metal side mesh 14 is installed on the top surface of the side guard plate 3, and the two metal side meshes 14 are rotatably connected to the two sides of the metal mesh 5 respectively; the metal side meshes 14 on the side guard plate 3 are rotatably connected to the two sides of the metal mesh 5, forming a comprehensive protection for both sides of the tunnel. When the side guard plate 3 rotates, the metal side meshes 14 move accordingly, maintaining the effective closure of the tunnel and preventing objects such as gangue from rolling or sliding and threatening the workers below.

[0054] A further optimized solution is provided, in which the fixing portion comprises an insert rod 15, the bottom of which is fixedly provided with a tip 16, the top of the insert rod 15 is fixedly connected to the bottom surface of the base plate 1, and a plurality of insert rods 15 are arranged at equal intervals; the tip 16 at the bottom of the insert rod 15 can be easily inserted into the ground, providing stable support for the base plate 1, and a plurality of insert rods 15 are arranged at equal intervals, ensuring the stability of the support device on the ground.

[0055] According to a further optimized solution, two cross beams 2 are arranged side by side, a plurality of connecting columns 8 are fixedly connected to the bottom of the cross beam 2 at equal intervals, and a plurality of anchor rods 6 are installed on the cross beam 2 at equal intervals, so as to further enhance the stability of the support device.

[0056] According to a further optimized solution, the cross-sectional shape of the bracket 4 is L-shaped, which ensures a stable connection between the bracket 4 and the crossbeam 2 and the side guard plate 3 , and also provides a suitable installation position for the second hydraulic rod 12 .

[0057] To further optimize the solution, a pulley is installed at the bottom of the base plate 1 to facilitate the movement of the device;

[0058] The insertion rod 15 is installed on the bottom surface of the base plate 1 through a third hydraulic rod (not shown in the figure). The third hydraulic rod is electrically connected to the control system. The third hydraulic rod drives the insertion rod 15 to rise and fall, thereby facilitating the folding of the insertion rod 15 or lowering the insertion rod 15 to fix the device.

[0059] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technical users in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A roof support device for a close-range coal seam tunnel, characterized in that: include: A base plate (1), wherein a plurality of fixing parts are installed at the bottom of the base plate (1); A crossbeam (2), wherein a plurality of crossbeams (2) are arranged side by side, a plurality of hydraulic lifting assemblies are detachably connected to the bottom of the crossbeam (2), and the bottom of the hydraulic lifting assemblies is fixedly connected to the bottom plate (1); Two side guard plates (3), the two side guard plates (3) are rotatably connected to two ends of the plurality of cross beams (2); Two telescopic components, the two telescopic components are respectively hinged on the crossbeam (2) through brackets (4), and the telescopic ends of the two telescopic components are respectively hinged to the bottom surfaces of the two side guard plates (3); A metal mesh (5), the metal mesh (5) being installed on the top of a plurality of the cross beams (2); Anchor rods (6), wherein a plurality of anchor rods (6) are provided, and the plurality of anchor rods (6) are all mounted on the crossbeam (2); A pressure monitoring component, the pressure monitoring component being mounted on the metal mesh (5); A control system (7) is installed on the base plate (1), an alarm element is installed on one of the crossbeams (2), and the hydraulic lifting component, the pressure monitoring component and the alarm element are all electrically connected to the control system (7).

2. The close-distance coal seam roadway roof support device according to claim 1 is characterized in that: A plurality of connecting columns (8) are installed at the bottom of the crossbeam (2), an upper wing plate (9) is installed at the bottom of the connecting column (8), and the top of the hydraulic lifting assembly is detachably connected to the upper wing plate (9).

3. The close-range coal seam roadway roof support device according to claim 2 is characterized in that: The hydraulic lifting assembly comprises a first hydraulic rod (10) mounted on the base plate (1), a lower wing plate (11) being fixedly mounted on the piston end of the first hydraulic rod (10), the lower wing plate (11) being detachably connected to the upper wing plate (9) via a plurality of fastening bolts; and a plurality of the first hydraulic rods (10) are all electrically connected to the control system (7).

4. The close-distance coal seam roadway roof support device according to claim 1 is characterized in that: The telescopic assembly comprises a second hydraulic rod (12) electrically connected to the control system (7); the bottom of the second hydraulic rod (12) is hinged to the bracket (4), and the top is hinged to the bottom surface of the side guard plate (3); the two second hydraulic rods (12) are respectively arranged corresponding to the two side guard plates (3).

5. The close-range coal seam roadway roof support device according to claim 1 is characterized in that: The pressure monitoring component comprises a plurality of pressure sensors (13), wherein the plurality of pressure sensors (13) are installed at intervals on the metal mesh (5), and the plurality of pressure sensors (13) are all electrically connected to the control system (7).

6. The close-distance coal seam roadway roof support device according to claim 1 is characterized in that: A metal side net (14) is installed on the top surface of the side guard plate (3), and the two metal side nets (14) are rotatably connected to the two sides of the metal net (5) respectively.

7. The close-range coal seam roadway roof support device according to claim 1 is characterized in that: The fixing portion comprises an insertion rod (15), the bottom of the insertion rod (15) is fixedly connected with a tip (16), the top of the insertion rod (15) is fixedly connected to the bottom surface of the bottom plate (1), and a plurality of the insertion rods (15) are arranged at equal intervals.

8. The close-range coal seam roadway roof support device according to claim 2 is characterized in that: Two cross beams (2) are arranged side by side, a plurality of connecting columns (8) are fixedly connected to the bottom of the cross beam (2) at equal intervals, and a plurality of anchor rods (6) are installed on the cross beam (2) at equal intervals.

9. The close-range coal seam roadway roof support device according to claim 1, characterized in that: The cross-sectional shape of the bracket (4) is L-shaped.

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