Coal mine tunneling supporting device

Abstract

The utility model provides a coal mine tunneling supporting device. The coal mine tunneling supporting device comprises column legs, a top beam, a connecting assembly and a supporting assembly, the two column legs are distributed left and right, the top beam is arranged on the upper sides of the two column legs, the two ends of the top beam are fixedly connected with the top ends of the column legs on the two sides through the connecting assembly, and the supporting assembly comprises a fixing frame. The two fixing frames are distributed left and right, the fixing frames are located on the outer side of the top beam, the tops of the fixing frames are fixedly connected with limiting pieces, the limiting pieces are located on the upper side of the top beam, and the bottoms of the fixing frames are in threaded connection with locking screws; supporting pieces are fixedly connected between the front surfaces of the two fixing frames and between the rear surfaces of the two fixing frames. The coal mine tunneling supporting device has the advantage that materials such as a back plate and pitwood can make full contact with the inner wall of a roadway so that the conditions of roof vacancy and side vacancy can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal mine support, and in particular to a coal mine tunneling support device. Background Technology

[0002] Currently, the basic support method for underground tunnels in coal mines is frame support. When facing arched tunnels, an arched support structure is used. This structure is assembled from components such as top beams, columns, and connectors. It has good load-bearing capacity, can increase the stability of the coal seam, and thus effectively prevent accidents such as collapses and roof falls, ensuring the safety of miners.

[0003] Currently, the support of coal mine tunnel faces typically uses anchor bolts to fix the protective netting to the side surface and top of the tunnel. Arch supports are placed inside the protective netting, and materials such as back plates and pit timbers are installed between the top beams and column legs of the arch supports and the inner wall of the tunnel to avoid the occurrence of empty roofs and empty sides. Sometimes, after workers stuff back plates or pit timbers into the gaps, there are still small gaps, which prevent the materials from making full contact with the inner wall of the tunnel. This requires workers to constantly adjust the position of the materials or fill them with other materials, which is quite troublesome and time-consuming.

[0004] Therefore, it is necessary to provide a new coal mine tunneling support device to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a coal mine tunneling support device that enables materials such as back plates and pit timbers to fully contact the inner wall of the roadway to avoid the occurrence of empty roof and empty sidewalls.

[0006] To solve the above-mentioned technical problems, the present invention provides a coal mine tunneling support device comprising: column legs, top beam, connecting components, and support components. The column legs are provided in two and are distributed on the left and right sides. The top beam is provided on the upper side of the two column legs and the two ends of the top beam are fixedly connected to the top of the two column legs by the connecting components.

[0007] The support assembly includes two fixed frames arranged side-by-side, located on the outer side of the top beam. A limiting component is fixedly connected to the top of each fixed frame, positioned above the top beam. A locking screw is threaded to the bottom of each fixed frame. Supporting components are fixedly connected between the front and rear surfaces of the two fixed frames. A sliding groove is formed on the surface of each supporting component, and several sliders are slidably connected inside the groove. An adjusting screw is threaded to the surface of each slider, and a top block is rotatably connected to the top of the adjusting screw.

[0008] As a further embodiment of this utility model, a plurality of first positioning holes are provided on the surface of the support member located on one side of the slide groove, and a second positioning hole is provided on the surface of the slider. A positioning pin is inserted into the interior of the second positioning hole, and one end of the positioning pin extends into the first positioning hole on one side.

[0009] Through the above technical solution, in this device, after the top two ends of the top beam and the top ends of the two side columns are fixed and erected in the roadway of the excavation face through the upper connector, lower connector and bolts and nuts, the end of the connecting rod is fixedly connected to the ear plate of the arch support that has been erected on one side by bolts, so that the various arch supports are stably connected. Then, the corresponding back plate or pit timber and other materials are filled into the gap between the column leg, the top beam and the inner wall of the roadway. When the user fixes the support component to the two side columns or the top beam, the position of the top block can be adjusted by the cooperation of the slider and the groove, so as to correspond to the position of the pit timber. After the slider is adjusted, the user inserts the positioning pin into the second positioning hole and the first positioning hole on one side to fix the slider and prevent it from being displaced. The structural design makes it convenient for the user to adjust flexibly.

[0010] As a further embodiment of this utility model, a limiting rod is slidably connected inside the slider located on one side of the adjusting screw, and the top of the limiting rod is fixedly connected to the slider.

[0011] With the above technical solution, during the process of filling the gap between the top beam, column leg and the inner wall of the roadway, sometimes after the workers stuff the back plate or pit timber into the gap, there are still small gaps, which prevent the material from making full contact with the inner wall of the roadway. As a result, the workers need to constantly adjust the position of the material or fill it with other materials, which is more troublesome and time-consuming. In this device, the user can put the fixing frame in the support component on the surface of the top beam or column leg in advance, then adjust its position and rotate the locking screw to fix its position. Then rotate the adjusting screw. Due to the restriction of the limit rod, the top block can move smoothly toward the pit timber side and press it against the inner wall of the roadway. This allows the arch support to provide good support for the coal seam. The structural design is user-friendly and can improve the operating efficiency.

[0012] As a further embodiment of this utility model, the bottom of each of the two column legs is fixedly connected with a column foot, and the front and rear side walls of the column legs located on the upper side of the column foot are fixedly connected with a limiting sleeve, and a locking anchor rod is inserted into the inside of the limiting sleeve.

[0013] With the above technical solution, in this structure, the column feet of the column legs are supported on the roadway floor. In order to prevent the column legs from sinking, the structure also adds a limiting sleeve to the surface of the column legs. The user passes the locking anchor rod through the limiting sleeve and inserts it into the inner wall of the roadway, thereby improving its structural stability and preventing sinking or displacement.

[0014] As a further embodiment of this utility model, ear plates are fixedly connected to the front and rear surfaces of the column leg located on the upper side of the limiting sleeve, and a connecting rod is fixedly connected to the surface of one ear plate by bolts.

[0015] By using the above technical solution, and by connecting two adjacent sets of arch supports with connecting rods, the occurrence of displacement or tilting of a single arch support can be greatly reduced. At the same time, through the connection of the connecting rods, multiple arch supports can work together to improve the overall load-bearing capacity.

[0016] As a further embodiment of this utility model, the connecting assembly includes an upper connecting member and a lower connecting member, with the top end of the column leg and the end of the top beam located between the upper connecting member and the lower connecting member, and the upper connecting member and the lower connecting member being fixedly connected by bolts and nuts.

[0017] With the above technical solution, the column legs and the top beam can be fixedly connected by the upper connector, the lower connector, and bolts and nuts during use, thus forming a whole to support the coal seam in the roadway and prevent collapse or roof fall accidents in the roadway.

[0018] As a further embodiment of this utility model, the top end of the locking screw abuts against the bottom of the top beam, and the bottom surface of the limiting member abuts against the top surface of the top beam.

[0019] With the above technical solution, users can attach the fixing frame to the column leg or top beam and move it to a suitable position. Then, tighten the locking screw to fix the position of the structure at that point. The structural design makes it convenient for workers to install support components on the column leg or top beam.

[0020] Compared with related technologies, the coal mine tunneling support device provided by this utility model has the following beneficial effects:

[0021] 1. In this utility model, during the process of filling the material between the top beam, column leg and the inner wall of the roadway, sometimes after the worker inserts the back plate or pit timber into the gap, there are still small gaps, which makes the material not fully contact the inner wall of the roadway. As a result, the worker needs to constantly adjust the position of the material or fill other materials, which is more troublesome and time-consuming. In this device, the user can put the fixing frame in the support component on the surface of the top beam or column leg in advance, then adjust its position and rotate the locking screw to fix its position. Then rotate the adjusting screw. Due to the restriction of the limiting rod, the top block can move smoothly toward the pit timber side and press it against the inner wall of the roadway, so that the arch support can play a good supporting effect on the coal seam. The structural design is user-friendly and can improve the operating efficiency.

[0022] 2. In this utility model, after the top two ends of the top beam and the top ends of the two side columns are fixed and erected in the tunnel face by the upper connector, the lower connector and bolts and nuts, the end of the connecting rod is fixedly connected to the ear plate of the arch support that has been erected on one side by bolts, so that the arch supports are stably connected. Then, the corresponding back plate or pit timber is filled into the gap between the column leg, the top beam and the inner wall of the tunnel. After the user fixes the support component to the two side columns or the top beam, the position of the top block can be adjusted by the cooperation of the slider and the groove, so as to correspond to the position of the pit timber. After the slider is adjusted, the user inserts the positioning pin into the second positioning hole and the first positioning hole on one side to fix the slider and prevent it from being displaced. The structural design makes it convenient for the user to adjust flexibly. Attached Figure Description

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of a coal mine tunneling support device according to the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of a coal mine tunneling support device according to the present invention. Figure 2 ;

[0026] Figure 3 This is a partial structural schematic diagram of a coal mine tunneling support device according to the present invention;

[0027] Figure 4 This is a partial structural breakdown diagram of a coal mine tunneling support device according to the present invention.

[0028] Explanation of key symbols:

[0029] 1. Column leg; 2. Column base; 3. Top beam; 4. Connecting assembly; 5. Ear plate; 6. Connecting rod; 7. Support assembly; 8. Upper connector; 9. Lower connector; 10. Limiting sleeve; 11. Locking anchor rod; 12. Limiting component; 13. Fixing frame; 14. Locking screw; 15. Sliding block; 16. Support component; 17. Slide groove; 18. First positioning hole; 19. Second positioning hole; 20. Positioning pin; 21. Top block; 22. Adjusting screw; 23. Limiting rod. Detailed Implementation

[0030] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a coal mine tunneling support device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a coal mine tunneling support device according to the present invention. Figure 2; Figure 3 This is a partial structural schematic diagram of a coal mine tunneling support device according to the present invention; Figure 4 This is a partially disassembled structural diagram of a coal mine tunneling support device according to the present invention. The coal mine tunneling support device includes:

[0031] The column legs 1, the top beam 3, the connecting component 4, and the support component 7 are provided. There are two column legs 1, which are distributed on the left and right. The top beam 3 is located on the upper side of the two column legs 1, and the two ends of the top beam 3 are fixedly connected to the top of the two column legs 1 through the connecting component 4.

[0032] The support assembly 7 includes a fixing frame 13. There are two fixing frames 13 arranged on the left and right. The fixing frames 13 are located on the outside of the top beam 3. The top of the fixing frame 13 is fixedly connected to a limiting member 12, which is located on the upper side of the top beam 3. The bottom of the fixing frame 13 is threadedly connected to a locking screw 14. Support members 16 are fixedly connected between the front surfaces and the rear surfaces of the two fixing frames 13. The surface of the support member 16 is provided with a sliding groove 17. Several sliders 15 are slidably connected inside the sliding groove 17. The surface of the sliders 15 is threadedly connected to an adjusting screw 22. The top of the adjusting screw 22 is rotatably connected to a top block 21.

[0033] like Figure 1-4 As shown, the surface of the support member 16 located on one side of the slide groove 17 is provided with a number of first positioning holes 18 distributed at equal intervals, and the surface of the slider 15 is provided with a second positioning hole 19. A positioning pin 20 is inserted into the inside of the second positioning hole 19, and one end of the positioning pin 20 extends into the first positioning hole 18 on one side.

[0034] In this device, after the top two ends of the top beam 3 are fixed to the top ends of the two side columns 1 through the upper connector 8, the lower connector 9 and bolts and nuts and erected in the tunnel face, the end of the connecting rod 6 is fixedly connected to the ear plate 5 of the arch support that has been erected on one side by bolts, so that the various arch supports are stably connected. Then, the corresponding back plate or pit timber and other materials are filled into the gap between the column leg 1, the top beam 3 and the inner wall of the tunnel. After the user fixes the support component 7 to the two side columns 1 or the top beam 3, the position of the top block 21 can be adjusted by the cooperation of the slider 15 and the slide groove 17, so as to correspond to the position of the pit timber. After the slider 15 is adjusted, the user inserts the positioning pin 20 into the second positioning hole 19 and the first positioning hole 18 on one side to fix the slider 15 and prevent it from being displaced. The structural design makes it convenient for the user to adjust flexibly.

[0035] like Figure 1-4 As shown, a limiting rod 23 is slidably connected inside the slider 15 located on one side of the adjusting screw 22, and the top of the limiting rod 23 is fixedly connected to the slider 15.

[0036] During the process of filling the gap between the top beam 3, the column leg 1 and the inner wall of the roadway, sometimes after the workers insert the back plate or pit timber into the gap, there are still small gaps, which prevent the material from making full contact with the inner wall of the roadway. This requires the workers to constantly adjust the position of the material or fill it with other materials, which is troublesome and time-consuming. In this device, the user can put the fixing frame 13 in the support component 7 on the surface of the top beam 3 or the column leg 1 in advance, then adjust its position and rotate the locking screw 14 to fix its position. Then rotate the adjusting screw 22. Due to the restriction of the limiting rod 23, the top block 21 can move smoothly toward the pit timber side and press it against the inner wall of the roadway, so that the arch support can provide good support for the coal seam. The structural design is user-friendly and can improve the operating efficiency.

[0037] like Figure 1-4 As shown, the bottom of each of the two column legs 1 is fixedly connected to a column foot 2. The front and rear side walls of the column legs 1 located on the upper side of the column foot 2 are fixedly connected to a limit sleeve 10. A locking foot anchor rod 11 is inserted into the inside of the limit sleeve 10.

[0038] In this structure, the column feet 2 of the column leg 1 are supported on the roadway floor. In order to prevent the column leg 1 from sinking, the structure also adds a limiting sleeve 10 to the surface of the column leg 1. The user passes the locking anchor rod 11 through the limiting sleeve 10 and inserts it into the inner wall of the roadway, thereby improving its structural stability and preventing sinking or displacement.

[0039] like Figure 1-4 As shown, ear plates 5 are fixedly connected to the front and rear surfaces of the column leg 1 located on the upper side of the limiting sleeve 10, and a connecting rod 6 is fixedly connected to the surface of one ear plate 5 by bolts.

[0040] By connecting two adjacent arch supports with connecting rod 6, the occurrence of displacement or tilting of a single arch support can be greatly reduced. At the same time, through the connection of connecting rod 6, multiple arch supports can work together to improve the overall load-bearing capacity.

[0041] like Figure 1-4 As shown, the connecting assembly 4 includes an upper connecting member 8 and a lower connecting member 9. The top of the column leg 1 and the end of the top beam 3 are located between the upper connecting member 8 and the lower connecting member 9. The upper connecting member 8 and the lower connecting member 9 are fixedly connected by bolts and nuts.

[0042] When in use, the column leg 1 and the top beam 3 can be fixedly connected by the upper connector 8, the lower connector 9 and bolts and nuts to form a whole, which can support the coal seam in the roadway and prevent collapse or roof fall accidents in the roadway.

[0043] like Figure 1-4 As shown, the top end of the locking screw 14 abuts against the bottom of the top beam 3, and the bottom surface of the limiting member 12 abuts against the top surface of the top beam 3.

[0044] Users can attach the mounting bracket 13 to the column leg 1 or the top beam 3 and move it to a suitable position. Then, tighten the locking screw 14 to fix the position of the structure at that point. The structural design makes it convenient for workers to install the support component 7 on the column leg 1 or the top beam 3.

[0045] The working principle of the coal mine tunneling support device provided by this utility model is as follows:

[0046] First step: During the process of filling the material between the top beam 3, the column leg 1 and the inner wall of the roadway, sometimes after the workers stuff the back plate or pit timber into the gap, there are still small gaps, which makes the material not fully contact the inner wall of the roadway. As a result, the workers need to constantly adjust the position of the material or fill other materials, which is more troublesome and time-consuming. In this device, the user can put the fixing frame 13 in the support component 7 on the surface of the top beam 3 or the column leg 1 in advance, then adjust its position and rotate the locking screw 14 to fix its position. Then rotate the adjusting screw 22. Due to the restriction of the limiting rod 23, the top block 21 can move smoothly toward the pit timber side and press it against the inner wall of the roadway, so that the arch support can play a good supporting effect on the coal seam. The structural design is user-friendly and can improve the operating efficiency.

[0047] The second step: In this device, after the top two ends of the top beam 3 are fixed to the top of the two side column legs 1 through the upper connector 8, the lower connector 9 and bolts and nuts and erected in the tunnel face, the end of the connecting rod 6 is fixedly connected to the ear plate 5 of the arch support that has been erected on one side by bolts, so that the arch supports are stably connected. Then, the corresponding back plate or pit timber and other materials are filled into the gap between the column legs 1, the top beam 3 and the inner wall of the tunnel. After the user fixes the support component 7 to the two side column legs 1 or the top beam 3, the position of the top block 21 can be adjusted by the cooperation of the slider 15 and the slide groove 17, so as to correspond to the position of the pit timber. After the slider 15 is adjusted, the user inserts the positioning pin 20 into the second positioning hole 19 and the first positioning hole 18 on one side to fix the slider 15 and prevent it from being displaced. The structural design makes it convenient for the user to adjust flexibly.

[0048] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0049] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A coal mine tunneling support device, characterized in that, It includes column legs (1), top beam (3), connecting components (4) and support components (7). There are two column legs (1) and they are distributed on the left and right. The top beam (3) is located on the upper side of the two column legs (1) and the two ends of the top beam (3) are fixedly connected to the top of the two column legs (1) through the connecting components (4). The support assembly (7) includes a fixing frame (13), two fixing frames (13) are provided and distributed left and right. The fixing frame (13) is located on the outside of the top beam (3). The top of the fixing frame (13) is fixedly connected to a limiting member (12). The limiting member (12) is located on the upper side of the top beam (3). The bottom of the fixing frame (13) is threadedly connected to a locking screw (14). Support members (16) are fixedly connected between the front surface and the rear surface of the two fixing frames (13). The surface of the support member (16) is provided with a sliding groove (17). Several sliders (15) are slidably connected inside the sliding groove (17). The surface of the slider (15) is threadedly connected to an adjusting screw (22). The top of the adjusting screw (22) is rotatably connected to a top block (21).

2. The coal mine tunneling support device as described in claim 1, characterized in that, The support member (16) located on one side of the slide (17) has several first positioning holes (18) distributed at equal intervals on its surface, and the slider (15) has a second positioning hole (19) on its surface. A positioning pin (20) is inserted into the second positioning hole (19), and one end of the positioning pin (20) extends into the first positioning hole (18) on one side.

3. The coal mine tunneling support device as described in claim 2, characterized in that, A limiting rod (23) is slidably connected inside the slider (15) located on one side of the adjusting screw (22), and the top of the limiting rod (23) is fixedly connected to the slider (15).

4. The coal mine tunneling support device as described in claim 3, characterized in that, The bottom of each of the two column legs (1) is fixedly connected to a column foot (2). The front and rear side walls of the column leg (1) located on the upper side of the column foot (2) are fixedly connected to a limiting sleeve (10). A locking anchor rod (11) is inserted into the inside of the limiting sleeve (10).

5. The coal mine tunneling support device as described in claim 4, characterized in that, The front and rear surfaces of the column leg (1) located on the upper side of the limiting sleeve (10) are fixedly connected with ear plates (5), and a connecting rod (6) is fixedly connected to the surface of the ear plate (5) on one side by bolts.

6. The coal mine tunneling support device as described in claim 5, characterized in that, The connecting assembly (4) includes an upper connector (8) and a lower connector (9). The top end of the column leg (1) and the end of the top beam (3) are located between the upper connector (8) and the lower connector (9). The upper connector (8) and the lower connector (9) are fixedly connected by bolts and nuts.

7. The coal mine tunneling support device as described in claim 6, characterized in that, The top end of the locking screw (14) abuts against the bottom of the top beam (3), and the bottom surface of the limiting member (12) abuts against the top surface of the top beam (3).

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