Steel arch for supporting roadway of iron mine

Abstract

The utility model discloses an iron mine laneway supporting steel arch which comprises an arc-shaped arch body, side edge supporting steel is arranged on the two sides of the bottom of the arc-shaped arch body, a connecting plate is fixedly installed at the bottoms of the side edge supporting steel, a threaded cylinder is fixedly installed at the bottom of the connecting plate, a threaded rod is in threaded connection with the interior of the threaded cylinder, and the threaded rod is fixedly connected with the bottom of the arc-shaped arch body. A box body is fixedly installed on the outer side of the side edge supporting steel, a rotating wheel is arranged below the box body, a threaded rod is fixedly installed on the top of the rotating wheel, threaded blocks are in threaded connection with the positions, close to the two ends of the threaded rod, of the outer portion of the threaded rod, and ejector rods are movably connected to the outer sides of the threaded blocks; the other end of the ejector rod penetrates out of the box body and is movably connected with an ejector plate. Through the matching of the structures, the height of the supporting steel arch frame is adjusted, so that rock masses with different heights can be supported, and the applicability of the supporting steel arch frame is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron mine shaft and tunnel support, in particular to an iron mine shaft and tunnel support steel arch frame. Background Art

[0002] Iron mine shafts and tunnels are the shafts, tunnels and chambers excavated for the needs of lifting, transportation, ventilation, drainage, power supply, etc. during underground iron ore mining. In addition, the iron mine shafts and tunnels need to be supported by supporting steel arch frames after excavation. The existing publication number CN219529033U discloses an iron mine shaft and tunnel supporting steel arch frame, which supports the entire steel arch frame by arranging supporting mechanisms on the front and rear sides of the bottom steel arch frame, avoids tilting during the supporting process, and improves the supporting effect. However, the height of the supporting steel arch frame cannot be adjusted, which makes it difficult to support rock masses of different heights, thereby greatly reducing the applicability of the supporting steel arch frame and bringing certain adverse effects to actual use. Therefore, it is necessary to improve it. Utility Model Content

[0003] The purpose of the utility model is to provide a steel arch frame for supporting the shaft and tunnel of an iron mine. The adjusting device provided therein can realize the adjustment of the height of the supporting steel arch frame, so that it can support rock masses of different heights, thereby greatly improving the applicability of the supporting steel arch frame, bringing certain favorable effects to actual use, and solving the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an iron mine shaft and tunnel supporting steel arch frame, comprising an arc-shaped arch frame, side support steels are provided on both sides of the bottom of the arc-shaped arch frame, and a connecting plate is fixedly installed on the bottom of the side support steel, and a threaded cylinder is fixedly installed on the bottom of the connecting plate, and a screw is connected to the internal thread of the threaded cylinder, and the bottom end of the screw is rotatably connected to the bottom plate through a bearing and the external fixed sleeve of the screw is provided with an anti-slip sleeve, and a box body is fixedly installed on the outside of the side support steel, and a rotating wheel is provided below the box body, and a threaded rod is fixedly installed on the top of the rotating wheel, and the top of the threaded rod is rotatably connected to the top of the inner wall of the box body through a bearing and opposite threaded grooves are provided on the threaded rod, and a threaded block is threadedly connected to the outside of the threaded rod near its two ends, and the outside of the threaded block is movably connected to a push rod through a hinge, and the other end of the push rod passes through the box body and is movably connected to the top plate through a hinge.

[0005] Preferably, a first reinforcing rod is fixedly installed on the inner side of the arc-shaped arch frame, second reinforcing rods are fixedly installed on both sides of the top of the first reinforcing rod, and the top end of the second reinforcing rod is fixedly connected to the inner side of the arc-shaped arch frame.

[0006] Preferably, mounting plates are fixedly mounted on both sides of the bottom of the arc-shaped arch frame, bolts are threadedly connected inside the mounting plate and near its four corners, and the bottom ends of the bolts are threadedly connected to the side support steel.

[0007] Preferably, a limiting cylinder is fixedly installed at the bottom of the connecting plate and close to the rear side thereof, a limiting rod is slidably connected inside the limiting cylinder, and the bottom end of the limiting rod is fixedly connected to the top of the bottom plate.

[0008] Preferably, fixing holes are provided inside the bottom plate and close to the front and rear sides thereof, and ground nails are provided inside the fixing holes.

[0009] Preferably, a sliding block is fixedly installed on the inner side of the threaded block, a sliding groove is fixedly installed on the inner wall of the box body, and the sliding block is slidably connected and adapted to the sliding groove.

[0010] Preferably, a plurality of anti-slip steel nails are fixedly mounted on the outer side of the top plate, and the anti-slip steel nails are arranged obliquely to both sides.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the rotation of the rotating sleeve can drive the screw to rotate, and the screw can drive the bottom plate to rise and fall while rotating, thereby adjusting the height of the supporting steel arch frame, so as to support rock masses of different heights, thereby greatly improving the applicability of the supporting steel arch frame. The rotation of the rotating wheel can drive the threaded rod to rotate, and the threaded rod can drive the threaded block to move, and the threaded block can drive the top plate to support the side wall of the mine shaft through the top rod, so as to support both sides of the supporting steel arch frame, thereby improving the stability of the supporting steel arch frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0014] Figure 3 It is an enlarged view of point A of the utility model;

[0015] Figure 4 It is an enlarged view of point B of the present utility model.

[0016] In the figure: 1. arc-shaped arch frame; 2. side support steel; 3. connecting plate; 4. threaded tube; 5. screw; 6. bottom plate; 7. anti-skid sleeve; 8. box body; 9. rotating wheel; 10. threaded rod; 11. threaded block; 12. top rod; 13. top plate; 14. first reinforcing rod; 15. second reinforcing rod; 16. mounting plate; 17. bolt; 18. limit tube; 19. limit rod; 20. fixing hole; 21. ground nail; 22. slider; 23. slide groove; 24. anti-skid steel nail. DETAILED DESCRIPTION

[0017] 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.

[0018] Example 1, please refer to Figures 1 to 4 The utility model provides a technical solution: an iron mine shaft and tunnel supporting steel arch frame, comprising an arc-shaped arch frame 1, side support steels 2 are arranged on both sides of the bottom of the arc-shaped arch frame 1, a connecting plate 3 is fixedly installed at the bottom of the side support steel 2, a threaded tube 4 is fixedly installed at the bottom of the connecting plate 3, a screw rod 5 is connected to the internal thread of the threaded tube 4, the bottom end of the screw rod 5 is rotatably connected to the bottom plate 6 through a bearing, and the external fixed sleeve of the screw rod 5 is provided with an anti-slip sleeve 7, a box body 8 is fixedly installed on the outside of the side support steel 2, a rotating wheel 9 is arranged below the box body 8, a threaded rod 10 is fixedly installed on the top of the rotating wheel 9, the top of the threaded rod 10 is rotatably connected to the top of the inner wall of the box body 8 through a bearing, and opposite threaded grooves are opened on the threaded rod 10, a threaded block 11 is threadedly connected to the outside of the threaded rod 10 and near its two ends, a top rod 12 is movably connected to the outside of the threaded block 11 through a hinge, and the other end of the top rod 12 passes through the box body 8 and is movably connected to the top plate 13 through a hinge.

[0019] Furthermore, a first reinforcing rod 14 is fixedly installed on the inner side of the arc-shaped arch frame 1, and second reinforcing rods 15 are fixedly installed on both sides of the top of the first reinforcing rod 14. The top end of the second reinforcing rod 15 is fixedly connected to the inner side of the arc-shaped arch frame 1. The first reinforcing rod 14 and the second reinforcing rod 15 can further improve the supporting strength of the arc-shaped arch frame 1.

[0020] Furthermore, mounting plates 16 are fixedly installed on both sides of the bottom of the arc-shaped arch frame 1, and bolts 17 are threadedly connected inside the mounting plate 16 and near its four corners. The bottom end of the bolt 17 is threadedly connected to the side support steel 2. The arrangement of the mounting plate 16 and the bolt 17 facilitates the staff to disassemble and assemble the supporting steel arch frame, thereby facilitating the transportation of the supporting steel arch frame.

[0021] Furthermore, a limiting cylinder 18 is fixedly installed at the bottom of the connecting plate 3 and near its rear side, and the limiting cylinder 18 is internally slidably connected to a limiting rod 19, and the bottom end of the limiting rod 19 is fixedly connected to the top of the base plate 6. Through the arrangement of the limiting rod 19 and the limiting cylinder 18, the base plate 6 can be stably raised and lowered.

[0022] Example 2, please refer to Figures 1 to 4The difference between this embodiment and embodiment 1 is that a fixing hole 20 is opened inside the bottom plate 6 and near its front and rear sides, and a ground nail 21 is arranged inside the fixing hole 20. The ground nail 21 can pass through the fixing hole 20 and be inserted into the soil, thereby improving the stability of the bottom of the supporting steel arch frame and reducing the risk of the supporting steel arch frame tipping over. A slider 22 is fixedly installed on the inner side of the threaded block 11, and a slide groove 23 is fixedly installed on the inner wall of the box body 8. The slider 22 is slidably connected and adapted to the slide groove 23. The threaded block 11 can be stably lifted and lowered under the sliding action of the slider 22 and the slide groove 23. A plurality of anti-slip steel nails 24 are fixedly installed on the outer side of the top plate 13. The anti-slip steel nails 24 are inclined to both sides. The anti-slip steel nails 24 can increase the friction between the top plate 13 and the side walls of the shaft and tunnel, thereby preventing the shaft and tunnel supporting steel arch frame from settling.

[0023] Working principle: When the iron mine shaft and tunnel supporting steel arch frame is in use, the staff can assemble the supporting steel arch frame through the mounting plate 16 and the bolts 17. After the assembly is completed, the staff can rotate the rotating sleeve, and the rotating sleeve can drive the screw rod 5 to rotate. The screw rod 5 can drive the bottom plate 6 to rise and fall while rotating, thereby realizing the adjustment of the height of the supporting steel arch frame, so as to support rock masses of different heights, thereby greatly improving the applicability of the supporting steel arch frame. After the adjustment is completed, the staff can rotate the rotating wheel 9, and the rotating wheel 9 can drive the threaded rod 10 to rotate, and the threaded rod 10 can drive the threaded block 11 to move, and the threaded block 11 can drive the top plate 13 to support the side wall of the mine shaft and tunnel through the top rod 12, so as to support both sides of the supporting steel arch frame, thereby improving the stability of the supporting steel arch frame.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel arch support for an iron mine shaft and tunnel, comprising an arc-shaped arch (1), characterized in that: Side support steels (2) are provided on both sides of the bottom of the arc-shaped arch frame (1); a connecting plate (3) is fixedly installed on the bottom of the side support steel (2); a threaded cylinder (4) is fixedly installed on the bottom of the connecting plate (3); a screw (5) is connected to the internal thread of the threaded cylinder (4); the bottom end of the screw (5) is rotatably connected to a bottom plate (6) via a bearing; and an external fixing sleeve of the screw (5) is provided with an anti-slip sleeve (7); a box (8) is fixedly installed on the outside of the side support steel (2); and a screw (5) is provided below the box (8). A rotating wheel (9) is provided, a threaded rod (10) is fixedly mounted on the top of the rotating wheel (9), the top end of the threaded rod (10) is rotatably connected to the top of the inner wall of the box body (8) through a bearing, and opposite thread grooves are provided on the threaded rod (10), a threaded block (11) is threadedly connected to the outside of the threaded rod (10) and near both ends thereof, the outer side of the threaded block (11) is movably connected to a push rod (12) through a hinge, and the other end of the push rod (12) passes through the box body (8) and is movably connected to a top plate (13) through a hinge.

2. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: A first reinforcing rod (14) is fixedly mounted on the inner side of the arc-shaped arch frame (1), second reinforcing rods (15) are fixedly mounted on both sides of the top of the first reinforcing rod (14), and the top end of the second reinforcing rod (15) is fixedly connected to the inner side of the arc-shaped arch frame (1).

3. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: Mounting plates (16) are fixedly installed on both sides of the bottom of the arc-shaped arch frame (1), and bolts (17) are threadedly connected inside the mounting plate (16) and near its four corners, and the bottom ends of the bolts (17) are threadedly connected to the side support steel (2).

4. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: A limiting cylinder (18) is fixedly installed at the bottom of the connecting plate (3) and close to the rear side thereof, the interior of the limiting cylinder (18) is slidably connected to a limiting rod (19), and the bottom end of the limiting rod (19) is fixedly connected to the top of the bottom plate (6).

5. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: A fixing hole (20) is provided inside the bottom plate (6) and near the front and rear sides thereof, and a ground nail (21) is provided inside the fixing hole (20).

6. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: A sliding block (22) is fixedly installed on the inner side of the threaded block (11), a sliding groove (23) is fixedly installed on the inner wall of the box body (8), and the sliding block (22) is slidably connected and adapted to the sliding groove (23).

7. The iron mine shaft and tunnel support steel arch frame according to claim 1, characterized in that: A plurality of anti-slip steel nails (24) are fixedly mounted on the outer side of the top plate (13), and the anti-slip steel nails (24) are arranged obliquely on both sides.

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