Metal mine underground mining supporting device

Abstract

The utility model discloses a metal mine underground mining supporting device, which is characterized in that two supporting bases are provided with a double-thread screw I, a threaded sleeve I, a limiting rod and a sleeve, and the distance between the two supporting bases can be adjusted by driving the double-thread screw I to rotate; the height of the lifting frame, the height of the transmission plate and the height of the supporting arc plate can be adjusted through the lifting assembly, the lifting assembly can be used for supporting the side wall of a roadway, the supporting arc plate can support the top of the roadway, and the height of the supporting arc plate can be adjusted while the distance between the two supporting bases is adjusted. Compared with the prior art, the utility model can adapt to roadways with various section specifications, and has a wider application range.

Description

Technical Field

[0001] This utility model relates to the technical field of support devices for underground mining of metal mines, and in particular to a support device for underground mining of metal mines. Background Technology

[0002] When metal mines carry out underground mining operations, a large number of roadways need to be excavated underground. Using support devices to maintain the smooth flow of roadways and the stability of the surrounding rock is of great significance for underground construction and production. The fundamental purpose of supporting roadways is to mitigate and reduce the movement of the surrounding rock, so that the roadway cross-section does not shrink excessively and deform, affecting the passage of personnel and equipment, while preventing the collapse of scattered and damaged surrounding rock.

[0003] A roof support device for underground lead-zinc mines, authorized by announcement number CN220621904U, belongs to the field of support frame technology. It uses ground anchors to install grounding blocks on the ground, and the main body of the support frame connects crossbars to bring fixed protective plates into contact with the roof, thus providing auxiliary support for the mine shaft. However, because the main body of the support frame and the fixed protective plates have fixed and non-adjustable specifications, the overall height and width of the device are not adjustable, which imposes certain requirements on the specifications of the roadway and limits its applicability. Utility Model Content

[0004] The technical problem to be solved is to provide a support device for underground mining of metal mines, which solves the problems mentioned in the background art that the overall height and width of the support device are not adjustable, have certain requirements on the specifications of the roadway, and have a limited range of applications.

[0005] The technical solution adopted in this invention is as follows: A support device for underground mining of metal mines includes two symmetrically distributed support bases. Sleeves and threaded sleeves are symmetrically arranged on the sides of the support bases that are close to each other. A double-ended screw is connected between the two threaded sleeves. The two ends of the double-ended screw are threaded into the two threaded sleeves respectively. An adjusting frame is provided in the middle of the double-ended screw. The double-ended screw is rotatably connected to the adjusting frame. A first adjusting nut is sleeved and fixed in the middle of the double-ended screw. Limiting rods are symmetrically arranged on both sides of the adjusting frame. The ends of the limiting rods extend into the corresponding sleeves and are movably connected to them. Each of the tops of the two support bases is connected to a connecting head via a lifting assembly. A transmission plate is hinged to each of the two corresponding connecting heads on the two lifting assemblies. The two transmission plates are hinged to the same lifting frame. A supporting arc plate is connected to the top of the transmission plate.

[0006] A further technical solution is as follows: the lifting assembly includes a fixed groove and a lifting plate. The fixed groove is fixed to the top of the support base, and the lifting plate is slidably disposed in the fixed groove. Several positioning holes are provided on the fixed groove, and a pin hole is provided on the lifting plate. A positioning bolt is provided inside the pin hole. The positioning bolt passes through one of the positioning holes and is threadedly connected to it. The connector is fixed to the top of the lifting plate.

[0007] A further technical solution is as follows: the transmission plate is connected to the supporting arc plate through a first stud and a limiting slide rod. The first stud passes through the transmission plate and is threadedly connected to it. The limiting slide rod passes through the transmission plate and is slidably connected to it. The end of the limiting slide rod is fixed to the supporting arc plate. The first stud is rotatably connected to the supporting arc plate and is axially fixed.

[0008] A further technical solution is as follows: each of the two lifting components is provided with a threaded sleeve II on its corresponding lifting plate, and a double-ended screw II is provided between the two threaded sleeve II. The two ends of the double-ended screw II are respectively threadedly connected to the threaded sleeve II at the corresponding positions. A second adjusting nut is provided on the double-ended screw II, and a main plate is sleeved and movably connected in the middle of the double-ended screw II.

[0009] A further technical solution is as follows: a second stud is inserted through the middle of the main board, the upper end of the second stud is fixed to the lifting frame, and a positioning nut is provided on the second stud.

[0010] A further technical solution is that the support base is symmetrically provided with through holes, and a first fixing rod is inserted into each of the through holes.

[0011] A further technical solution is that a wing plate is provided on the fixing groove, a fixing hole is opened on the wing plate, and a second fixing rod is inserted into each fixing hole.

[0012] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] By designing a system with a double-ended screw, a threaded sleeve, a limiting rod, and a sleeve on two support bases, the distance between the two support bases can be adjusted by driving the double-ended screw to rotate. The height of the lifting frame, transmission plate, and supporting arc plate can be adjusted via a lifting assembly. Furthermore, the lifting assembly itself can serve as support for the tunnel sidewalls, and the supporting arc plate can support the tunnel roof. This invention allows for adjustment of both the distance between the two support bases and the height of the supporting arc plate, making it adaptable to tunnels with various cross-sectional specifications. Compared to existing technologies, this invention has a wider range of applications. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the sleeve and threaded sleeve structure of this utility model;

[0016] Figure 3 This is the front view of the present utility model;

[0017] Figure 4 This is a top view of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-4 As shown. A support device for underground mining of metal mines includes two symmetrically distributed support bases 1. Sleeves 3 and threaded sleeves 4 are symmetrically arranged on the sides of the support bases 1 that are close to each other. A double-ended screw 7 is connected between the two threaded sleeves 4, with both ends of the double-ended screw 7 threaded into the two threaded sleeves 4 respectively. An adjusting frame 5 is provided in the middle of the double-ended screw 7, and the double-ended screw 7 is rotatably connected to the adjusting frame 5. Limiting rods 6 are symmetrically arranged on both sides of the adjusting frame 5, with the ends of the limiting rods 6 extending into the corresponding sleeves 3 and movably connected to them. Each of the tops of the two support bases 1 is connected to a connector 15 via a lifting assembly. A transmission plate 16 is hinged to each of the two corresponding connectors 15 on the two lifting assemblies. The two transmission plates 16 are hinged to the same lifting frame 20, and a supporting arc plate 18 is connected to the top of the transmission plate 16.

[0020] In use, after placing the device in the roadway requiring support, the distance between the two support bases 1 is adjusted by rotating the double-ended screw 7 with the help of tools and the first adjusting nut 8, which is sleeved and fixed in the middle of the double-ended screw 7. This allows the support bases 1 to press against the roadway sidewall at the corresponding position. During this process, the lifting frame 20, transmission plate 16, and supporting arc plate 18 descend. Then, by adjusting the height of the lifting assembly, the heights of the lifting frame 20, transmission plate 16, and supporting arc plate 18 are adjusted. The supporting arc plate 18 matches the curvature of the roadway top. Multiple sets of supporting arc plates 18 can be set on the transmission plate 16 as needed to ensure the support effect. This utility model can adjust the distance between the two support bases 1 while simultaneously adjusting the height of the supporting arc plate 18, making it adaptable to roadways with various cross-sectional specifications.

[0021] The lifting assembly includes a fixing groove 9 and a lifting plate 14. The fixing groove 9 is fixed to the top of the support base 1. The lifting plate 14 is slidably disposed in the fixing groove 9. The fixing groove 9 has several positioning holes 10. The lifting plate 14 has a pin hole. A positioning bolt 11 is disposed inside the pin hole. The positioning bolt 11 passes through one of the positioning holes 10 and is threadedly connected to it. The connector 15 is fixed to the top of the lifting plate 14.

[0022] In use, the lifting plate 14 is raised to the required height by manual labor or a hydraulic cylinder. Then, positioning bolts 11 are inserted into the positioning holes 10 and pin holes to achieve positioning.

[0023] The transmission plate 16 is connected to the supporting arc plate 18 via a first stud 17 and a limiting slide rod 19. The first stud 17 passes through the transmission plate 16 and is threaded to it. The limiting slide rod 19 passes through the transmission plate 16 and is slidably connected to it. The end of the limiting slide rod 19 is fixed to the supporting arc plate 18. The first stud 17 is rotatably connected to the supporting arc plate 18 and is axially fixed. The first stud 17 and the supporting arc plate 18 can be connected via bearings.

[0024] In use, the distance between the support arc plate 18 and the transmission plate 16 can be adjusted by rotating the first stud 17, and the height of the support arc plate 18 can also be further adjusted so that the support arc plate 18 is in closer contact with the top of the tunnel.

[0025] Each of the two lifting components is provided with a threaded sleeve 21 on the corresponding lifting plate 14. A double-ended screw 22 is provided between the two threaded sleeves 21. The two ends of the double-ended screw 22 are threadedly connected to the corresponding threaded sleeves 21. A second adjusting nut 23 is provided on the double-ended screw 22.

[0026] Two sets of double-headed screws 22 can be installed. Double-headed screws 22 can be installed last. Double-headed screws 22 can reinforce the two lifting components, making the lifting components fit more tightly against the sidewall of the tunnel.

[0027] The double-headed screw 22 is fitted with and movably connected to a main screw 24. A second stud 25 is inserted through the middle of the main screw 24. The upper end of the second stud 25 is fixed to the lifting frame 20. A positioning nut 26 is provided on the second stud 25. After the positioning nut 26 contacts the main screw 24, the double-headed screw 22 can support the lifting frame 20 and indirectly bear the pressure of the supporting arc plate 18, making the overall force of the device more uniform.

[0028] The support base 1 has symmetrical through holes, and a first fixing rod 2 is inserted into each through hole. The first fixing rod 2 can be used to fix the support base 1 to the ground, which can further strengthen it.

[0029] A wing plate 12 is provided on the fixing groove 9. Fixing holes are opened on the wing plate 12, and a second fixing rod 13 is inserted into each fixing hole. The second fixing rod 13 is inserted into the side wall of the roadway, which also plays a further role in reinforcement.

[0030] The threads at both ends of the double-ended screw 7 and the double-ended screw 22 are in opposite directions. When installing this device, by rotating the first adjusting nut 8 and the second adjusting nut 23, the threaded sleeves 4 and 21 at both ends of the device can be moved closer or further apart at the same time to adapt to different specifications of roadway width.

[0031] The above are merely preferred embodiments of the present invention.

Claims

1. A support device for underground mining of metal mines, comprising two symmetrically distributed support bases (1), characterized in that: The support bases (1) are symmetrically provided with sleeves (3) and threaded sleeves (4) on their adjacent sides. A double-headed screw (7) is connected between the two threaded sleeves (4). The two ends of the double-headed screw (7) are threaded into the two threaded sleeves (4). An adjustment frame (5) is provided in the middle of the double-headed screw (7). The double-headed screw (7) is rotatably connected to the adjustment frame (5). Limiting rods (6) are symmetrically provided on both sides of the adjustment frame (5). The ends of the limiting rods (6) extend into the corresponding sleeves (3) and are movably connected to them. The top of each of the two support bases (1) is connected to a connector (15) through a lifting assembly. A transmission plate (16) is hinged to the two corresponding connectors (15) on the two lifting assemblies. The two transmission plates (16) are hinged to the same lifting frame (20). A support arc plate (18) is connected to the top of the transmission plate (16).

2. The support device for underground mining of metal mines according to claim 1, characterized in that, The lifting assembly includes a fixed groove (9) and a lifting plate (14). The fixed groove (9) is fixed to the top of the support base (1). The lifting plate (14) is slidably disposed in the fixed groove (9). The fixed groove (9) has several positioning holes (10). The lifting plate (14) has a pin hole. A positioning bolt (11) is disposed inside the pin hole. The positioning bolt (11) passes through one of the positioning holes (10) and is threadedly connected to it. The connector (15) is fixed to the top of the lifting plate (14).

3. The support device for underground mining of metal mines according to claim 2, characterized in that: The transmission plate (16) is connected to the support arc plate (18) through the first stud (17) and the limiting slide rod (19). The first stud (17) passes through the transmission plate (16) and is threaded to it. The limiting slide rod (19) passes through the transmission plate (16) and is slidably connected to it. The end of the limiting slide rod (19) is fixed to the support arc plate (18). The first stud (17) is rotatably connected to the support arc plate (18) and is axially fixed.

4. The support device for underground mining of metal mines according to claim 3, characterized in that: The lifting plates (14) of the two lifting components are each provided with a threaded sleeve (21), and a double-headed screw (22) is provided between the two threaded sleeves (21). The two ends of the double-headed screw (22) are respectively threaded to the threaded sleeves (21) at the corresponding positions. A second adjusting nut (23) is provided on the double-headed screw (22).

5. A support device for underground mining of metal mines according to claim 4, characterized in that: The double-headed screw (22) is fitted with and movably connected to a main screw (24). A second stud (25) is inserted through the middle of the main screw (24). The upper end of the second stud (25) is fixed to the lifting frame (20). A positioning nut (26) is provided on the second stud (25).

6. A support device for underground mining of metal mines according to claim 5, characterized in that: The support base (1) has symmetrical through holes, and a first fixing rod (2) is inserted through each through hole.

7. A support device for underground mining of metal mines according to claim 6, characterized in that: The fixing groove (9) is provided with a wing plate (12), and a fixing hole is opened on the wing plate (12), and a second fixing rod (13) is inserted into each fixing hole.

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