A support structure for coal mining

Abstract

The application provides a supporting structure for coal mining, which comprises a protection assembly and a lifting assembly, wherein the protection assembly comprises a plurality of second protection sheds and a third protection shed connected with the first and last second protection sheds, the plurality of second protection sheds are arranged at equal intervals, and two adjacent second protection sheds are connected through the third protection shed, and relates to the technical field of coal mining, wherein the lifting assembly is provided with multiple groups, and the multiple groups of lifting assemblies are connected through the second protection sheds, and the folding plates are foldable structures, so that when the upper surface of the roadway is an irregular structure, even if the rising heights are different, the folding plates can effectively adapt to different regular top surfaces through deformation, and the lower end of the second protection shed is provided with a first protection shed, and the first protection shed is connected with the lifting rod, so that when the second protection shed is damaged, the debris on the top surface can fall on the upper surface of the first protection shed, thereby avoiding safety accidents.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and in particular to a support structure for coal mining. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil is typically stripped away to extract the coal; this is called an open-pit coal mine. The vast majority of coal mines in my country are underground mines. A coal mine encompasses a large area, including both above-ground and underground areas, as well as related facilities.

[0003] A coal mine is a rationally excavated space created by humans when mining coal-rich geological strata. It typically includes tunnels, shafts, and working faces. Coal is the most important solid fuel and is a type of combustible organic rock. It is formed by the gradual accumulation of thick layers of lush vegetation that grew over a certain geological era in suitable geological environments, buried underwater or in silt, and undergoing natural coalification over long geological periods.

[0004] Among the various geological periods in the world, the Carboniferous, Permian, Jurassic, and Tertiary strata contain the most coal and are considered important coal-forming eras. Coal generally has a carbon content of 46-97%, is brown to black, and has a dull to metallic luster.

[0005] Hydraulic supports are structures used to control mine pressure in coal mining faces. The mine pressure acts on the hydraulic supports as an external load. In the mechanical system of interaction between the hydraulic supports and the surrounding rock of the mining face, if the resultant force of all supporting components of the hydraulic support is exactly linear with the resultant force of the external load acting on the hydraulic support from the roof, then the hydraulic support is highly suitable for the surrounding rock of that mining face.

[0006] However, the device has the following problems during use:

[0007] 1. When supporting the support, hydraulic rods are generally used for support. A protective canopy is provided on the upper surface of the hydraulic rods. However, since the top surface of the internal tunnel is an irregular arc-shaped structure, while the upper surface of traditional supports is a regular arc-shaped structure, uneven force will occur during support. This will cause the support to be unstable for tunnel top surfaces with different structures.

[0008] 2. If the protective canopy on the top is damaged during use, gravel may fall into the interior of the support structure from the damaged area, which could cause a safety accident for workers walking below. Summary of the Invention

[0009] To overcome the problems of uneven stress during support due to the irregular arc-shaped structure of the internal roadway roof, and the potential for debris to fall into the support if the roof is damaged, posing a safety hazard to workers below, this application provides a support structure for coal mines. This structure includes multiple sets of lifting components connected by a second protective canopy. The folding plate is foldable, allowing it to adapt to different roof shapes even with varying lifting heights. A first protective canopy is located at the lower end of the second protective canopy and connected to the lifting rod. If the second protective canopy is damaged, debris can fall onto the upper surface of the first protective canopy, preventing accidents.

[0010] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0011] A support structure for coal mine construction includes a protective component and a lifting component. The protective component is installed on the top surface of the coal mine roadway to protect the coal mine roof. The lifting component is installed below the protective component to support the protective component.

[0012] The protective assembly includes several second protective sheds and a third protective shed connected end to end to the second protective sheds. The several second protective sheds are arranged at equal intervals, and two adjacent second protective sheds are connected by the third protective shed. The second protective shed includes a folding plate for attaching to the top surface of the tunnel. The folding plate has a foldable structure, so that when the top surface of the tunnel is irregular, the adjacent lifting components on both sides can effectively adapt to different regular top surfaces by deforming the folding plate when they rise, even if the rising heights are different.

[0013] Preferably, the two ends of the folding plate are respectively provided with a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate have the same shape. At the same time, the first connecting plate and the second connecting plate are both segmented structures. The cross-section where the first connecting plate and the second connecting plate intersect with the first connecting groove and the second connecting groove is smaller than the cross-section away from the first connecting groove and the second connecting groove. The first connecting plate and the second connecting plate are used to connect the second protective canopy to the lifting rods on both sides. In addition, the folding plate has a foldable structure. In this way, when the top surface of the roadway is irregular, the adjacent lifting rods on both sides can effectively adapt to different regular top surfaces when they rise, even if the rising heights are different, through the deformation of the folding plate.

[0014] Preferably, the third protective shed includes a connecting cover, and the two ends of the connecting cover are respectively provided with a first connecting groove and a second connecting groove. The first connecting groove and the second connecting groove are respectively connected to the first connecting plate and the second connecting plate by bolts. By using bolt connection, if it is necessary to repair the lifting rod above, the whole structure can be quickly and conveniently disassembled for repair.

[0015] Preferably, the lifting assembly includes a lifting rod, which has a segmented structure. The lifting rod includes a support rod and a hydraulic rod, and the inner wall of the hydraulic rod is provided with an oil inlet and an oil outlet. A first protective canopy is provided above the lifting rod near the connecting cover, and the length of the first protective canopy is the same as the length of the adjacent lifting rod.

[0016] Preferably, the first protective canopy includes a support plate connected to the lifting rod, and a connecting column is provided at the intersection of the support plate and the lifting rod. A receiving plate is provided on the side of the support plate near the connecting column. In use, the lifting rod is turned on by opening the switch through the control box, and the lifting rod moves so that the connecting cover on the upper surface comes into contact with the top surface of the tunnel. In this way, the second protective canopy comes into contact with the top surface of the tunnel. Since the second protective canopy has a folding plate inside, the folding plate can be tightly attached to irregular tunnels, and the problem of loose attachment due to the different heights of the lifting rods on both sides will not occur. At the same time, the lower surface of the second protective canopy is provided with a first protective canopy, so that if the second protective canopy is damaged, the falling gravel can be caught by the first protective canopy.

[0017] Preferably, the lower end of the lifting rod is provided with a base plate, the lifting rod is connected to the base through the base plate, the lower surface of the lifting rod is provided with a base, and the base and the lifting rod are perpendicular to each other.

[0018] Preferably, the upper surface of the base is provided with a control box, and the control box is electrically connected to several sets of lifting rods. The circuit connection between the several sets of lifting rods and the control box is in parallel. The surface of the control box is provided with a start button and a stop button. The operation of the lifting rod can be controlled by the start button and the stop button inside the control box. When the switch of the lifting rod is turned on by the control box, the lifting rod rises, so that the connecting cover on the upper surface contacts the top surface of the tunnel. In this way, the second protective canopy contacts the top surface of the tunnel. Since the second protective canopy is provided with a folding plate inside, the folding plate can be tightly attached to irregular tunnels.

[0019] The advantages of the embodiments of this application are:

[0020] 1. In this invention, multiple sets of lifting components are provided, and the multiple sets of lifting components are connected by a second protective canopy. The second protective canopy includes a first connecting plate, a second connecting plate, and a folding plate. The first connecting plate and the second connecting plate are used to connect the second protective canopy to the lifting components on both sides. The folding plate has a foldable structure. In this way, when the top surface of the tunnel is irregular, the adjacent lifting components on both sides can effectively adapt to different regular top surfaces when they rise, even if the rising heights are different, through the deformation of the folding plate.

[0021] 2. A first protective shed is provided at the lower end of the second protective shed, and the first protective shed is connected to the lifting rod. If the second protective shed is damaged, the gravel on the top surface can fall onto the upper surface of the first protective shed. At the same time, the first protective shed includes a support plate and a load-bearing plate. The two first protective sheds inside the adjacent lifting rod can increase the load-bearing capacity of the first protective shed by placing the support plate on the surface of the load-bearing plate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the support structure used in coal mine mining according to the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the lifting rod and the third protective shed of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the lifting rod and the base of the present invention;

[0025] Figure 4 This is a schematic diagram of the overall structure of the first protective shed of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the second protective shed of the present invention;

[0027] Figure 6 This is a schematic diagram of the overall structure of the third protective shed of the present invention.

[0028] Explanation of key figure labels:

[0029] 1. First protective canopy; 11. Support plate; 12. Connecting column; 13. Support plate; 2. Second protective canopy; 21. First connecting plate; 22. Folding plate; 23. Second connecting plate; 3. Third protective canopy; 31. Connecting cover; 32. First connecting groove; 33. Second connecting groove; 4. Base; 5. Control box; 6. Lifting rod. Detailed Implementation

[0030] This application provides a support structure for coal mine construction, addressing the problem in existing technologies where uneven stress occurs due to the irregular arc-shaped structure of the internal roadway roof. Furthermore, damage to the roof surface allows debris to fall into the support structure, posing a safety hazard to workers below. The lifting assembly comprises multiple sets connected by a second protective canopy, with a foldable structure for the folding plate. This allows the folding plate to effectively adapt to different roof shapes, even with varying lifting heights. A first protective canopy is located below the second protective canopy and connected to the lifting rod. Damage to the second protective canopy allows debris to fall onto the upper surface of the first protective canopy, preventing accidents.

[0031] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0032] Example 1:

[0033] This embodiment provides a specific structure for a support structure used in coal mine development, such as... Figure 1-6 As shown, it includes a protective component and a lifting component. The protective component is installed on the top surface of the coal mine roadway to protect the coal mine top surface. The lifting component is installed below the protective component to support the protective component.

[0034] The protective components include several second protective canopies 2 and third protective canopies 3 connected end to end to the second protective canopies 2. The several second protective canopies 2 are arranged at equal intervals, and two adjacent second protective canopies 2 are connected by the third protective canopy 3. The second protective canopy 2 includes a folding plate 22 for attaching to the top surface of the roadway. The folding plate 22 is a foldable structure. In this way, when the top surface of the roadway is irregular, the adjacent lifting rods 6 on both sides can effectively adapt to different regular top surfaces by deforming the folding plate 22, even if the lifting heights are different.

[0035] The two ends of the folding plate 22 are respectively provided with a first connecting plate 21 and a second connecting plate 23. The first connecting plate 21 and the second connecting plate 23 have the same shape. At the same time, the first connecting plate 21 and the second connecting plate 23 are both segmented structures. The cross-section where the first connecting plate 21 and the second connecting plate 23 intersect with the first connecting groove 32 and the second connecting groove 33 is smaller than the cross-section away from the first connecting groove 32 and the second connecting groove 33.

[0036] The second protective canopy 2 is connected to the lifting rods 6 on both sides by using the first connecting plate 21 and the second connecting plate 23. The folding plate 22 is a foldable structure. In this way, when the top surface of the roadway is irregular, the adjacent lifting rods 6 on both sides can effectively adapt to different regular top surfaces by deforming the folding plate 22, even if the rising heights are different.

[0037] The third protective canopy 3 includes a connecting cover 31, and the two ends of the connecting cover 31 are respectively provided with a first connecting groove 32 and a second connecting groove 33. The first connecting groove 32 and the second connecting groove 33 are respectively connected to the first connecting plate 21 and the second connecting plate 23 by bolts. By using bolt connection, if it is necessary to repair the lifting rod 6 above, the whole structure can be quickly and conveniently disassembled for repair.

[0038] Example 2:

[0039] This embodiment provides a specific structure for a support structure used in coal mine development, such as... Figure 1-6 As shown, this embodiment also describes a lifting assembly compared to embodiment 1. The lifting assembly includes a lifting rod 6, which has a segmented structure. The lifting rod 6 includes a support rod and a hydraulic rod. The inner wall of the hydraulic rod is provided with an oil inlet and an oil outlet. A first protective canopy 1 is provided above the lifting rod 6 near the connecting cover 31. The length of the first protective canopy 1 is the same as the length of the adjacent lifting rod 6.

[0040] The first protective shed 1 includes a support plate 11 connected to the lifting rod 6, and a connecting column 12 is provided at the intersection of the support plate 11 and the lifting rod 6. A receiving plate 13 is provided on the side of the support plate 11 near the connecting column 12.

[0041] In use, the switch of the lifting rod 6 is turned on through the control box 5. The lifting rod 6 moves, so that the connecting cover 31 on the upper surface comes into contact with the top surface of the tunnel. In this way, the second protective canopy 2 comes into contact with the top surface of the tunnel. Since the second protective canopy 2 is equipped with a folding plate 22 inside, the folding plate 22 can be tightly attached to the irregular tunnel, and the problem of loose attachment will not occur due to the different heights of the lifting rods 6 on both sides. At the same time, the lower surface of the second protective canopy 2 is equipped with a first protective canopy 1. In this way, if the second protective canopy 2 is damaged, the falling gravel can be caught by the first protective canopy 1.

[0042] The lower end of the lifting rod 6 is provided with a base plate. The lifting rod 6 is connected to the base 4 through the base plate. The lower surface of the lifting rod 6 is provided with the base 4, and the base 4 and the lifting rod 6 are perpendicular to each other.

[0043] The upper surface of the base 4 is provided with a control box 5, and the control box 5 is electrically connected to several sets of lifting rods 6. The circuit connection between the several sets of lifting rods 6 and the control box 5 is in parallel. The surface of the control box 5 is provided with a start button and a stop button. The operation of the lifting rods 6 can be controlled by the start button and the stop button inside the control box 5.

[0044] In use, the switch of the lifting rod 6 is turned on through the control box 5. The lifting rod 6 rises, so that the connecting cover 31 on the upper surface comes into contact with the top surface of the tunnel. In this way, the second protective canopy 2 comes into contact with the top surface of the tunnel. Since the second protective canopy 2 is equipped with a folding plate 22 inside, the folding plate 22 can be tightly attached to irregular tunnels.

[0045] Working principle: When support is needed for coal mine roadways, take out the lifting rod 6 and install it in a suitable position. Also, take out the third protective canopy 3 and install the third protective canopy 3 on the upper surface of the lifting rod 6 in sequence. Then, install the first protective canopy 1 on the lower surface of the lifting rod 6 near the third protective canopy 3.

[0046] By turning on the switch of the lifting rod 6 through the control box 5, the lifting rod 6 rises, so that the connecting cover 31 on the upper surface comes into contact with the top surface of the tunnel. In this way, the second protective canopy 2 comes into contact with the top surface of the tunnel. Since the second protective canopy 2 is equipped with a folding plate 22 inside, the folding plate 22 can be tightly attached to the irregular tunnel, and the problem of loose attachment will not occur due to the different heights of the lifting components 3 on both sides. At the same time, the lower surface of the second protective canopy 2 is equipped with a first protective canopy 1, so if the second protective canopy 2 is damaged, the falling gravel can be caught by the first protective canopy 1.

[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A support structure for coal mine operation, characterized in that, include: Protective components are installed on the roof of coal mine roadways to protect the coal mine roof. A lifting assembly, located below the protective assembly, is used to support the protective assembly; The protective component includes several second protective sheds (2) and a third protective shed (3) connected end to end with the second protective sheds (2). The several second protective sheds (2) are arranged at equal intervals, and two adjacent second protective sheds (2) are connected by the third protective shed (3). The second protective shed (2) includes a folding plate (22) for attaching to the top surface of the roadway. The folding plate (22) has a first connecting plate (21) and a second connecting plate (23) at both ends, and the first connecting plate (21) and the second connecting plate (23) have the same shape. The third protective shed (3) includes a connecting cover (31), and the two ends of the connecting cover (31) are respectively provided with a first connecting groove (32) and a second connecting groove (33). The first connecting groove (32) and the second connecting groove (33) are respectively connected to the first connecting plate (21) and the second connecting plate (23) by bolts. The lifting assembly includes a lifting rod (6), and a first protective canopy (1) is provided above the lifting rod (6) near the connecting cover (31), and the length of the first protective canopy (1) is the same as the length of the adjacent lifting rod (6); The first connecting plate (21) and the second connecting plate (23) are both segmented structures. The cross-section of the first connecting plate (21) and the second connecting plate (23) intersecting with the first connecting groove (32) and the second connecting groove (33) is smaller than the cross-section away from the first connecting groove (32) and the second connecting groove (33).

2. The support structure for coal mine operation as described in claim 1, characterized in that, The first protective shed (1) includes a support plate (11) connected to the lifting rod (6), and a connecting column (12) is provided at the intersection of the support plate (11) and the lifting rod (6). A receiving plate (13) is provided on the side of the support plate (11) near the connecting column (12).

3. The support structure for coal mine operation as described in claim 1, characterized in that, The lower end of the lifting rod (6) is provided with a base plate, and the lifting rod (6) is connected to the base (4) through the base plate.

4. A support structure for coal mine operation as described in claim 1, characterized in that, The lower surface of the lifting rod (6) is provided with a base (4), and the base (4) and the lifting rod (6) are perpendicular to each other.

5. A support structure for coal mine operation as described in claim 4, characterized in that, The upper surface of the base (4) is provided with a control box (5), and the control box (5) is electrically connected to several sets of lifting rods (6), and the circuit connection between the several sets of lifting rods (6) and the control box (5) is in parallel.

6. A support structure for coal mine operation as described in claim 1, characterized in that, The lifting rod (6) is a segmented structure. The lifting rod (6) includes a support rod and a hydraulic rod, and the inner wall of the hydraulic rod is provided with an oil inlet and an oil outlet.

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