Fabricated coal mine goaf supporting structure

Abstract

The utility model relates to the technical field of coal mine goaf supporting, and discloses an assembly type coal mine goaf supporting structure which comprises a supporting column, the bottom end of one side of the supporting column is fixedly connected with a first connecting base, a supporting plate is arranged at the top end of the supporting column, one side of the supporting plate is fixedly connected with a second connecting base, and the second connecting base is fixedly connected with the supporting column. A first hydraulic cylinder is installed at the top end of the first connecting base, a second hydraulic cylinder is installed at the top end of the second connecting base, and a splicing column is installed between the supporting column and the supporting plate. According to the assembly type coal mine goaf supporting structure, the supporting plate is pushed upwards through the first hydraulic cylinder so that the supporting plate can bear the top of a goaf, then the splicing column with the proper length is selected and installed between the supporting plate and the supporting column, the splicing stability can be improved by inserting the splicing column into the splicing clamping groove, and the limiting effect can be improved through the limiting sleeve on the splicing column; and during disassembly, the first hydraulic cylinder is started to push upwards, and then the splicing column is taken down, so that the problem of inconvenience in disassembly and assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine goaf support, in particular to an assembled coal mine goaf support structure. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. Coal mine goafs refer to the holes or cavities left after underground coal or coal gangue are mined during coal mining operations. In order to prevent the collapse of coal mine goafs, support equipment is needed to support and protect the coal mine goafs.

[0003] After searching, it is found that the support equipment needs to be moved to the inside of the coal mine goaf first, but the common support equipment is large and inconvenient to move, and the support equipment is not easy to assemble and disassemble inside the coal mine goaf according to the size of the goaf, which affects the flexibility of the use of the support equipment.

[0004] There is an urgent need for an assembled coal mine goaf support structure to solve the technical defects raised in the above-mentioned technology. Utility Model Content

[0005] The utility model aims to provide an assembled coal mine goaf support structure to solve the problem of inconvenient disassembly and assembly in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an assembled coal mine goaf support structure, comprising a support column, a first connecting seat is fixedly connected to the bottom end of one side of the support column, a supporting support plate is arranged at the top of the support column, a second connecting seat is fixedly connected to one side of the supporting support plate, a first hydraulic cylinder is installed at the top of the first connecting seat, a second hydraulic cylinder is installed at the top of the second connecting seat, a splicing column is installed between the support column and the supporting support plate, a limiting sleeve is fixedly connected to the outside of the splicing column, a mounting plate is installed on the other side of the support column and the other side of the supporting support plate, a reserved groove is provided at the bottom end of the support column, a supporting wheel is installed inside the reserved groove, a splicing slot is provided at the bottom end of the supporting support plate and the top end of the support column, and a connecting plate is installed between the supporting support plates.

[0007] Preferably, the output end of the first hydraulic cylinder is mounted on the bottom end of the second connecting seat through a flange.

[0008] Preferably, the top and bottom ends of the splicing column are embedded in the interior of the splicing slot, and an anti-slip pad is installed inside the splicing slot.

[0009] Preferably, mounting flanges are fixedly connected to both sides of the connecting plate, and the mounting flanges are mounted on one side of the supporting plate by bolts.

[0010] Preferably, two groups of the second hydraulic cylinders are provided, and the output ends of the second hydraulic cylinders are fixedly connected with push plates.

[0011] Preferably, a reinforcement anchor rod is fixedly connected to one side of the mounting plate.

[0012] Preferably, a third hydraulic cylinder is installed at the top of the reserved groove, a support cover is installed on the outside of the support wheel, both sides of the support cover are fixedly connected to limiting sliding blocks, and both sides of the reserved groove are fixedly connected to limiting slideways.

[0013] Preferably, the output end of the third hydraulic cylinder is fixedly connected to the top end of the support cover, and the limiting sliding block is slidably connected to the limiting slideway.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the assembled coal mine goaf support structure not only realizes the function of being easy to disassemble and assemble, and the function of being easy to move, but also realizes the function of reinforced installation;

[0015] (1) By providing a splicing column, a first hydraulic cylinder, a support support plate, a connecting plate, a limiting sleeve, a splicing slot and a mounting flange, when splicing the support equipment, it is necessary to first move the two groups of support columns to a suitable spacing, the first hydraulic cylinder pushes the support support plate upward so that it supports the top of the goaf, and then select a splicing column of a suitable length to be installed between the support support plate and the support column. The splicing column is inserted into the splicing slot to improve the stability of the splicing, and the limiting sleeve on the splicing column can improve the limiting effect. A connecting plate can be installed between the two groups of support support plates to achieve top support. This structure realizes the function of easy disassembly and assembly;

[0016] (2) By providing a support column, a third hydraulic cylinder, a reserved groove, a support wheel, a limit slider, a limit slide and a support cover, the equipment can be moved inside the goaf after assembly. When the support equipment needs to be moved to a suitable position, the third hydraulic cylinder is started first, and the third hydraulic cylinder pushes the support wheel downward to prop up the support column. The support wheel assists the movement of the support column. When installing, the support wheel can be moved back to the reserved groove. This structure realizes the function of easy movement;

[0017] (3) By providing a push plate, a second hydraulic cylinder, a mounting plate and a reinforcing anchor rod, when installing the support equipment, it is necessary to first connect and install the two sets of support columns. After the support columns are spliced ​​and installed, the second hydraulic cylinder is started. The second hydraulic cylinder pushes the push plate to one side. The two sets of push plates push against each other to provide side support for the support plate, so that it can be firmly installed on the wall of the goaf. The reinforcing anchor rods on the sides of the support column and the support plate can improve the stability of the installation. When the support plate contacts the wall, the reinforcing anchor rod can be inserted into the wall. This structure realizes the function of facilitating reinforcement installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the support column of the utility model;

[0020] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a front view structural schematic diagram of the connecting plate of the utility model.

[0022] In the figure: 1. support column; 2. first connecting seat; 3. splicing column; 4. first hydraulic cylinder; 5. second connecting seat; 6. push plate; 7. support support plate; 8. connecting plate; 9. second hydraulic cylinder; 10. mounting plate; 11. limiting sleeve; 12. splicing slot; 13. reinforcement anchor rod; 14. third hydraulic cylinder; 15. reserved slot; 16. support wheel; 17. limiting slider; 18. limiting slide; 19. support cover; 20. mounting flange. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Please refer to Figure 1-4 , an assembled coal mine goaf support structure, comprising a support column 1, a first connecting seat 2 is fixedly connected to the bottom end of one side of the support column 1, a supporting support plate 7 is arranged at the top of the support column 1, a second connecting seat 5 is fixedly connected to one side of the supporting support plate 7, a first hydraulic cylinder 4 is installed at the top of the first connecting seat 2, a second hydraulic cylinder 9 is installed at the top of the second connecting seat 5, a splicing column 3 is installed between the support column 1 and the supporting support plate 7, a limited sleeve 11 is fixedly connected to the outside of the splicing column 3, a mounting plate 10 is installed on the other side of the support column 1 and the other side of the supporting support plate 7, a reserved groove 15 is arranged at the bottom end of the support column 1, a supporting wheel 16 is installed inside the reserved groove 15, a splicing card slot 12 is arranged at the bottom end of the supporting support plate 7 and the top of the support column 1, and a connecting plate 8 is installed between the supporting support plates 7;

[0025] The output end of the first hydraulic cylinder 4 is mounted on the bottom end of the second connecting seat 5 through a flange, the top and bottom ends of the splicing column 3 are embedded in the splicing slot 12, and an anti-slip pad is installed inside the splicing slot 12. The two sides of the connecting plate 8 are fixedly connected with mounting flanges 20, and the mounting flanges 20 are mounted on one side of the supporting plate 7 through bolts;

[0026] Specifically, Figure 1 and Figure 3 As shown, it is necessary to first move the two groups of support columns 1 to a suitable spacing, and the first hydraulic cylinder 4 pushes the support plate 7 upward so that it supports the top of the goaf, and then select a splicing column 3 of a suitable length to be installed between the support plate 7 and the support column 1. The splicing column 3 is inserted into the splicing slot 12 to improve the stability of the splicing, and the limiting sleeve 11 on the splicing column 3 can improve the limiting effect. A connecting plate 8 can be installed between the two groups of support plates 7 to achieve top support.

[0027] Embodiment 2: Two groups of second hydraulic cylinders 9 are provided, the output end of the second hydraulic cylinder 9 is fixedly connected to the push plate 6, and one side of the mounting plate 10 is fixedly connected to the reinforcement anchor rod 13;

[0028] Specifically, Figure 1 and Figure 2 As shown, after the support column 1 is spliced ​​and installed, the second hydraulic cylinder 9 is started. The second hydraulic cylinder 9 pushes the push plate 6 to one side. The two groups of push plates 6 push against each other to support the side of the support plate 7, so that it can be firmly installed on the wall of the goaf. The reinforcement anchor rods 13 on the sides of the support column 1 and the support plate 7 can improve the stability of the installation. When the support plate 7 contacts the wall, the reinforcement anchor rods 13 can be inserted into the wall.

[0029] Embodiment 3: A third hydraulic cylinder 14 is installed at the top of the reserved groove 15, a support cover 19 is installed outside the support wheel 16, and both sides of the support cover 19 are fixedly connected to the limit slider 17, and both sides of the reserved groove 15 are fixedly connected to the limit slide 18, the output end of the third hydraulic cylinder 14 is fixedly connected to the top of the support cover 19, and the limit slider 17 is slidably connected on the limit slide 18;

[0030] Specifically, Figure 1 and Figure 3 As shown, after the equipment is assembled, it can be moved inside the goaf. The supporting equipment needs to be moved to a suitable position. When moving, the third hydraulic cylinder 14 is started first. The third hydraulic cylinder 14 pushes the supporting wheel 16 downward to prop up the supporting column 1. The supporting wheel 16 assists the support column 1 in moving. When installing, the supporting wheel 16 can be moved back to the reserved groove 15.

[0031] Working principle: When the utility model is in use, it is necessary to first move the two groups of support columns 1 to a suitable spacing, the first hydraulic cylinder 4 pushes the support support plate 7 upward to make it bear the top of the goaf, and then select a splicing column 3 of a suitable length to be installed between the support support plate 7 and the support column 1, the splicing column 3 is inserted into the inside of the splicing slot 12 to improve the stability of the splicing, the limiting sleeve 11 on the splicing column 3 can improve the limiting effect, and the connecting plate 8 can be installed between the two groups of support support plates 7 to achieve top support. After the equipment is assembled, it can be moved inside the goaf. When the support equipment needs to be moved to a suitable position, the third hydraulic cylinder 14 is started first, and the first The three hydraulic cylinders 14 push the support wheel 16 downward to prop up the support column 1. The support wheel 16 assists the support column 1 in moving. During installation, the support wheel 16 can be moved back to the reserved groove 15. After the support column 1 is spliced ​​and installed, the second hydraulic cylinder 9 is started. The second hydraulic cylinder 9 pushes the push plate 6 to one side. The two groups of push plates 6 push against each other to support the support plate 7 on the side, so that it can be firmly installed on the wall of the goaf. The reinforcement anchor rods 13 on the sides of the support column 1 and the support plate 7 can improve the stability of the installation. When the support plate 7 contacts the wall, the reinforcement anchor rods 13 can be inserted into the wall. This structure realizes the function of easy and flexible installation.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An assembled coal mine goaf support structure, comprising a support column (1), characterized in that: The bottom end of one side of the support column (1) is fixedly connected to a first connection seat (2), the top end of the support column (1) is provided with a support support plate (7), one side of the support support plate (7) is fixedly connected to a second connection seat (5), the top end of the first connection seat (2) is installed with a first hydraulic cylinder (4), the top end of the second connection seat (5) is installed with a second hydraulic cylinder (9), a splicing column (3) is installed between the support column (1) and the support support plate (7), the outside of the splicing column (3) is fixedly connected with a limiting sleeve (11), the other side of the support column (1) and the other side of the support support plate (7) are installed with a mounting plate (10), the bottom end of the support column (1) is provided with a reserved groove (15), the inside of the reserved groove (15) is installed with a support wheel (16), the bottom end of the support support plate (7) and the top end of the support column (1) are provided with a splicing slot (12), and a connecting plate (8) is installed between the support support plates (7).

2. The assembled coal mine goaf support structure according to claim 1 is characterized in that: The output end of the first hydraulic cylinder (4) is mounted on the bottom end of the second connecting seat (5) via a flange.

3. The assembled coal mine goaf support structure according to claim 1 is characterized in that: The top and bottom ends of the splicing column (3) are embedded in the interior of the splicing slot (12), and an anti-slip pad is installed inside the splicing slot (12).

4. The assembled coal mine goaf support structure according to claim 1 is characterized in that: The two sides of the connecting plate (8) are fixedly connected with mounting flanges (20), and the mounting flange (20) is mounted on one side of the supporting plate (7) by means of bolts.

5. The assembled coal mine goaf support structure according to claim 1 is characterized in that: Two groups of the second hydraulic cylinders (9) are provided, and the output ends of the second hydraulic cylinders (9) are fixedly connected to push plates (6).

6. The assembled coal mine goaf support structure according to claim 1 is characterized by: A reinforcement anchor rod (13) is fixedly connected to one side of the mounting plate (10).

7. The assembled coal mine goaf support structure according to claim 1 is characterized by: A third hydraulic cylinder (14) is installed at the top end of the reserved groove (15), a support cover (19) is installed outside the support wheel (16), both sides of the support cover (19) are fixedly connected to limit slide blocks (17), and both sides of the reserved groove (15) are fixedly connected to limit slideways (18).

8. The assembled coal mine goaf support structure according to claim 7 is characterized by: The output end of the third hydraulic cylinder (14) is fixedly connected to the top end of the support cover (19), and the limiting slide block (17) is sleeved on the limiting slideway (18) in a sliding connection.

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