Shaft supporting device for coal mine vertical shaft

Abstract

The utility model relates to the technical field of coal mine shafts, in particular to a coal mine shaft supporting device which comprises a first supporting structure and a plurality of second supporting structures arranged on the first supporting structure, and the first supporting structure and the second supporting structures comprise arc-shaped supporting plates which are annularly distributed at equal intervals. Two fixing rings are arranged in the arc-shaped supporting plate, connecting rods which are annularly distributed at equal intervals are fixed between the two fixing rings, and telescopic mechanisms used for adjusting the position of the arc-shaped supporting plate are arranged on the fixing rings. The diameter of the whole supporting structure is changed, so that the whole supporting device can be installed in coal mine vertical shafts with different diameters, the gap between every two adjacent arc-shaped supporting plates is sealed through the collapse prevention structure, and the sealed vertical shaft supporting device is formed. And soil is prevented from collapsing into the supporting device along gaps between the arc-shaped supporting plates when the shaft surrounding rock collapses.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine shafts, in particular to a coal mine shaft support device. Background Art

[0002] In the process of coal mining, in order to ensure the smooth progress of construction, it is necessary to dig a vertical shaft for transporting materials and ventilation. The upper end of the vertical shaft is connected to the ground, and the lower end of the vertical shaft is connected to the coal mine tunnel. When the surrounding rock of the vertical shaft is unstable, it is necessary to use the shaft support device for support treatment. The existing shaft support device generally uses multiple support plates to cofferdam in the shaft. However, the diameter of the shaft is different, and the spacing between the support plates is not easy to adjust. It is impossible to make the entire support device against the inner wall of the shaft, which greatly reduces the use effect of the support device.

[0003] In order to solve the problem that the spacing between support plates is difficult to adjust, a certain wellbore support device on the market is designed to adjust the spacing between support plates, which has a certain market share.

[0004] After searching, the patent publication number is CN107246268B, which is a temporary support equipment for shaft excavation, and relates to the technical field of shaft excavation construction. The support equipment includes: a ring beam with a closed frame structure, and a guard beam fixed on the outside of the ring beam; the length direction of the guard beam is arranged along the axial direction of the ring beam; the ring beam includes at least two adjacent sub-beams and an expansion and contraction assembly connecting the ends of adjacent sub-beams; when the expansion and contraction assembly is extended, the distance between the ends of adjacent sub-beams increases, and the outer side surface of the guard beam abuts against the side wall of the shaft; when the expansion and contraction assembly is shortened, the distance between the ends of adjacent sub-beams decreases, and the outer side surface of the guard beam is separated from the side wall of the shaft. By extending the expansion and contraction assembly, the guard beam is tightly pressed against the inner wall of the shaft to support the shaft wall. In this way, the operator can continue to perform excavation operations above or below the support equipment, and perform support operations on the side wall of the shaft temporarily supported by the support equipment, so that the excavation operation and the support operation can be carried out simultaneously, thereby improving the progress of the project.

[0005] Based on the above search and in combination with the prior art, it is found that the existing vertical shaft support device solves the problem of adjusting the spacing between the support plates, but no anti-collapse structure is provided between the support plates. When the surrounding rock of the shaft collapses, the soil will collapse into the support device along the gap between the support plates, thereby reducing the support effect of the entire support device. Therefore, it is urgent to design a coal mine vertical shaft support device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a coal mine shaft support device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A coal mine shaft support device comprises a first support structure and a plurality of second support structures arranged on the first support structure, wherein the first support structure and the second support structure comprise arc-shaped support plates which are equidistantly distributed in a ring shape, and two fixing rings are arranged inside the arc-shaped support plates, a connecting rod which is equidistantly distributed in a ring shape is fixed between the two fixing rings, and a telescopic mechanism for adjusting the position of the arc-shaped support plates is arranged on the fixing rings, an anti-collapse structure is arranged between one ends of two adjacent arc-shaped support plates by means of a pin shaft for rotation, and the anti-collapse structure comprises protective plates which are rotatably arranged at both ends of the arc-shaped support plates by means of a pin shaft, an insertion cavity is opened on one side of the protective plate, and the same reinforcement plate is inserted into the interior of two adjacent insertion cavities.

[0009] Furthermore, guide holes distributed at equal distances are provided between the two ends of the reinforcement plate, and guide rods passing through the guide holes at equal distances are fixed between the inner walls of one end of two adjacent insertion cavities, and springs distributed at equal distances are fixed between the outer walls of the two ends of the reinforcement plate and the inner wall of one end of the insertion cavity, and the springs are sleeved on the ends of the guide rods.

[0010] Furthermore, the top of the first supporting structure and the top of the second supporting structure are both provided with positioning holes which are equidistantly distributed in a ring shape, and the positioning holes are provided at the top of the arc-shaped supporting plate. The bottom of the second supporting structure is fixed with positioning rods which are equidistantly distributed in a ring shape, and the positioning rods are fixed to the bottom of the arc-shaped supporting plate, and the positioning rods are inserted into the interior of the positioning holes.

[0011] Furthermore, universal wheels which are evenly distributed are fixedly installed on the bottom of the first supporting structure, and the universal wheels are fixedly installed on the bottom of the arc-shaped supporting plate.

[0012] Furthermore, the telescopic mechanism includes guide openings equidistantly arranged on the circumferential inner wall and circumferential outer wall of the fixed ring, and rack plates passing through two adjacent guide openings are fixed on the top and bottom of one side of the arc-shaped support plate, the top inner wall of the fixed ring is rotatably connected to gear columns equidistantly distributed in a ring, and the bottom of the outer wall of the gear column is meshed with one side of the rack plate, the top of the outer wall of the gear column is meshed with the same gear ring, and a forward and reverse motor for driving the gear column to rotate is fixedly installed at one end of the top of the fixed ring.

[0013] Furthermore, hooks distributed at equal distances are fixed to the top of the fixing ring located above.

[0014] Furthermore, the arc-shaped supporting plate is provided with anchor holes which are distributed at equal distances, and anchor rods are arranged inside the anchor holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, the entire coal mine shaft support device is formed by using the first support structure and multiple second support structures, and the first support structure and the second support structure are positioned by the positioning rod and the positioning socket, so as to facilitate the assembly of the entire support device, and the position of the arc-shaped support plate is adjusted by the telescopic mechanism, so that the spacing between the support plates has adjustable performance, and the diameter of the entire support structure is changed, so that the entire support device can be installed in coal mine shafts with different diameters, thereby improving the use effect of the support device;

[0017] In the utility model, the gap between two adjacent arc-shaped support plates is sealed by an anti-collapse structure to form a sealed vertical shaft support device, thereby preventing soil from collapsing into the interior of the support device along the gap between the arc-shaped support plates when the shaft surrounding rock collapses, thereby ensuring the support effect of the entire support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the overall structure of a coal mine shaft support device.

[0019] Figure 2 The present invention is a schematic diagram of a first supporting structure of a coal mine shaft supporting device.

[0020] Figure 3 The present invention is a top view of a coal mine shaft support device.

[0021] Figure 4 The present invention is a schematic diagram of the connecting rod and anchor hole structure of a coal mine shaft support device.

[0022] Figure 5 The present invention is a schematic diagram of the telescopic mechanism structure of a coal mine shaft support device.

[0023] Figure 6 The diagram is a schematic diagram of an anti-collapse structure of a coal mine shaft support device.

[0024] In the figure: 1. first supporting structure; 2. second supporting structure; 3. positioning rod; 4. universal wheel; 5. fixing ring; 6. telescopic mechanism; 601. forward and reverse motor; 602. rack plate; 603. guide port; 604. gear column; 605. gear ring; 7. hook; 8. arc-shaped supporting plate; 9. anchor rod; 10. anti-collapse structure; 1001. protective plate; 1002. insertion cavity; 1003. reinforcement plate; 1004. guide rod; 1005. spring; 11. positioning socket; 12. connecting rod; 13. anchor hole. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 6 In an embodiment of the utility model, a coal mine shaft support device includes a first support structure 1 and a plurality of second support structures 2 arranged on the first support structure 1, wherein the first support structure 1 and the second support structure 2 include arc-shaped support plates 8 that are equidistantly distributed in an annular shape, and two fixing rings 5 ​​are arranged inside the arc-shaped support plates 8, and connecting rods 12 that are equidistantly distributed in an annular shape are fixed between the two fixing rings 5, and a telescopic mechanism 6 for adjusting the position of the arc-shaped support plates 8 is arranged on the fixing ring 5, and the telescopic mechanism 6 includes equidistantly opened within the circumference of the fixing ring 5. The guide openings 603 of the wall and the circumferential outer wall are formed, and the top and bottom of one side of the arc-shaped support plate 8 are fixed with rack plates 602 passing through the two adjacent guide openings 603. The top inner wall of the fixed ring 5 is rotatably connected with toothed columns 604 distributed in an annular manner with equal distances, and the bottom of the outer wall of the toothed column 604 is meshed with one side of the rack plate 602. The top of the outer wall of the toothed column 604 is meshed with the same gear ring 605. The top end of the fixed ring 5 is fixedly installed with a forward and reverse motor 601 for driving the toothed column 604 to rotate. A pin is passed between one end of the two adjacent arc-shaped support plates 8. The anti-collapse structure 10 is rotatably provided, and the anti-collapse structure 10 includes a protective plate 1001 rotatably provided at both ends of the arc-shaped support plate 8 through a pin shaft, a plug cavity 1002 is provided on one side of the protective plate 1001, and the same reinforcing plate 1003 is inserted into the interior of two adjacent plug cavities 1002, and guide holes distributed at equal distances are provided between the two ends of the reinforcing plate 1003, and a guide rod 1004 passing through the guide hole at equal distances is fixed between the inner walls of one end of the two adjacent plug cavities 1002, and the outer walls of the two ends of the reinforcing plate 1003 are connected to the one end of the plug cavity 1002. Springs 1005 are fixed between the inner walls at equal distances, and the springs 1005 are sleeved on the ends of the guide rods 1004. The positions of the arc-shaped support plates 8 are adjusted by the telescopic mechanism 6, so that the spacing between the arc-shaped support plates 8 is adjustable, thereby changing the diameter of the entire support structure, so that the entire support device can be installed in coal mine shafts of different diameters, and the gap between two adjacent arc-shaped support plates 8 is sealed by the anti-collapse structure 10, so as to prevent the soil from collapsing into the interior of the support device along the gap between the arc-shaped support plates 8 when the surrounding rock of the shaft collapses.

[0027] Specifically, the top of the first supporting structure 1 and the top of the second supporting structure 2 are both provided with positioning holes 11 which are equidistantly distributed in a ring shape, and the positioning holes 11 are opened at the top of the arc-shaped supporting plate 8. The bottom of the second supporting structure 2 is fixed with positioning rods 3 which are equidistantly distributed in a ring shape, and the positioning rods 3 are fixed to the bottom of the arc-shaped supporting plate 8. The positioning rods 3 are inserted into the inside of the positioning holes 11. The first supporting structure 1 and the second supporting structure 2 are positioned by the positioning rods 3 and the positioning holes 11 to ensure the fixity between the first supporting structure 1 and the second supporting structure 2.

[0028] Specifically, the bottom of the first support structure 1 is fixedly installed with universal wheels 4 distributed at equal distances, and the universal wheels 4 are fixedly installed at the bottom of the arc-shaped support plate 8. The sliding action of the universal wheels 4 makes it easy for the arc-shaped support plate 8 to slide at the bottom of the coal mine shaft.

[0029] Specifically, hooks 7 equidistantly distributed are fixed to the top of the upper fixing ring 5 , and the entire supporting device is assembled and disassembled by the hooks 7 in cooperation with lifting equipment.

[0030] Specifically, the arc-shaped support plate 8 is provided with anchor holes 13 which are distributed at equal distances, and anchor rods 9 are arranged inside the anchor holes 13. The arc-shaped support plate 8 is reinforced in the shaft of the coal mine through the anchor holes 13 and the anchor rods 9, thereby improving the fixing performance of the entire support device.

[0031] The working principle of the utility model is as follows: when in use, the user uses the lifting equipment and the hook 7 to sequentially lift the first supporting structure 1 and the second supporting structure 2 into the shaft of the coal mine shaft, and uses the first supporting structure 1 and the plurality of second supporting structures 2 to form the entire shaft support device of the coal mine shaft, and positions the first supporting structure 1 and the second supporting structure 2 through the positioning plug rod 3 and the positioning plug hole 11, and then the user drives the tooth column 604 and the gear ring 605 to rotate through the forward and reverse motor 601 in the telescopic mechanism 6, and cooperates with the meshing action of the tooth column 604 and the rack plate 602 to bring The movable rack plate 602 moves in the guide opening 603 to adjust the position of the arc-shaped support plate 8, change the diameter of the entire support structure, and change the length of the anti-collapse structure 10, so that the entire support device can be installed in the shaft of a coal mine with different diameters. The support device is further reinforced by the anchor hole 13 and the anchor rod 9, and then the gap between two adjacent arc-shaped support plates 8 is sealed by the protective plate 1001 and the reinforcement plate 1003 in the anti-collapse structure 10 to prevent the soil from collapsing into the interior of the support device along the gap between the arc-shaped support plates 8 when the surrounding rock of the shaft collapses.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A coal mine shaft support device, characterized in that: The invention comprises a first supporting structure (1) and a plurality of second supporting structures (2) arranged on the first supporting structure (1), wherein the first supporting structure (1) and the second supporting structure (2) comprise arc-shaped supporting plates (8) which are equidistantly distributed in an annular shape, and two fixing rings (5) are arranged inside the arc-shaped supporting plates (8), a connecting rod (12) which is equidistantly distributed in an annular shape is fixed between the two fixing rings (5), and a telescopic mechanism (6) for adjusting the position of the arc-shaped supporting plates (8) is arranged on the fixing rings (5), an anti-collapse structure (10) is arranged between one end of two adjacent arc-shaped supporting plates (8) by means of a pin for rotation, and the anti-collapse structure (10) comprises a protective plate (1001) which is rotatably arranged at both ends of the arc-shaped supporting plates (8) by means of a pin, an insertion cavity (1002) is provided on one side of the protective plate (1001), and the same reinforcement plate (1003) is inserted into the interior of two adjacent insertion cavities (1002).

2. A coal mine shaft support device according to claim 1, characterized in that: Guide holes distributed at equal distances are provided between the two ends of the reinforcing plate (1003), and guide rods (1004) passing through the guide holes at equal distances are fixed between the inner walls of one end of two adjacent insertion cavities (1002). Springs (1005) distributed at equal distances are fixed between the outer walls of the two ends of the reinforcing plate (1003) and the inner wall of one end of the insertion cavity (1002), and the springs (1005) are sleeved on the ends of the guide rods (1004).

3. A coal mine shaft support device according to claim 1, characterized in that: The top of the first supporting structure (1) and the top of the second supporting structure (2) are both provided with positioning holes (11) which are equidistantly distributed in a ring shape, and the positioning holes (11) are provided at the top of the arc-shaped supporting plate (8), and the bottom of the second supporting structure (2) is fixed with positioning rods (3) which are equidistantly distributed in a ring shape, and the positioning rods (3) are fixed to the bottom of the arc-shaped supporting plate (8), and the positioning rods (3) are inserted into the inside of the positioning holes (11).

4. A coal mine shaft support device according to claim 1, characterized in that: Universal wheels (4) distributed at equal distances are fixedly mounted on the bottom of the first supporting structure (1), and the universal wheels (4) are fixedly mounted on the bottom of the arc-shaped supporting plate (8).

5. A coal mine shaft support device according to claim 4, characterized in that: The telescopic mechanism (6) comprises guide openings (603) which are equidistantly arranged on the inner and outer circumferential walls of the fixed ring (5), and rack plates (602) passing through two adjacent guide openings (603) are fixed to the top and bottom of one side of the arc-shaped support plate (8), the top inner wall of the fixed ring (5) is rotatably connected to tooth columns (604) which are equidistantly distributed in an annular shape, and the bottom of the outer wall of the tooth column (604) is meshed with one side of the rack plate (602), the top of the outer wall of the tooth column (604) is meshed with the same gear ring (605), and a forward and reverse motor (601) for driving the tooth column (604) to rotate is fixedly installed at one end of the top of the fixed ring (5).

6. A coal mine shaft support device according to claim 5, characterized in that: The top of the fixing ring (5) located above is fixed with hooks (7) distributed at equal distances.

7. A coal mine shaft support device according to claim 1, characterized in that: The arc-shaped support plate (8) is provided with anchor holes (13) distributed at equal distances, and anchor rods (9) are arranged inside the anchor holes (13).

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