Temporary roadway supporting device for metal mining engineering

Abstract

The invention discloses a temporary roadway supporting device for metal mining engineering, and relates to the technical field of roadway supporting devices.The temporary roadway supporting device comprises a main plate, a cavity is fixedly connected to the lower portion of the main plate, a two-way transmission mechanism is arranged in the cavity, and an auxiliary supporting mechanism is arranged on the side, away from the cavity, of the two-way transmission mechanism; the auxiliary supporting mechanism comprises a first auxiliary plate arranged in the main plate, the side edge of the first auxiliary plate is fixedly connected with an L-shaped rack rod, the side, close to the interior of the main plate, of the L-shaped rack rod is connected with an unfilled-corner gear in a meshed mode, only a quarter-circumference rack part is arranged outside the unfilled-corner gear, and the side edge of the unfilled-corner gear is fixedly connected with a connecting rod. The side, away from the unfilled corner gear, of the connecting rod is fixedly connected with a hollow cylinder, and the auxiliary supporting plate can be automatically unfolded to the position perpendicular to the main plate along with movement of the first auxiliary plate and the second auxiliary plate, so that supporting points are effectively increased, and the structural stability of the device after the supporting range is expanded is ensured; and the risk of deformation, fracture or collapse caused by an overlarge supporting range is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of roadway support devices, and particularly to a temporary roadway support device for metal mining engineering. Background Art

[0002] The temporary roadway support device for metal mining engineering is a key equipment to ensure the safety of mining operations and improve the stability of roadways. The temporary roadway support device in metal mining engineering is mainly used to support the top of the roadway to prevent rock collapse and provide safety guarantee for mining operations. These devices usually have the characteristics of compact structure, simple operation, large supporting force, etc., and can adapt to various complex mining environments.

[0003] In the prior art, when the width of the temporary roadway support device for metal mining engineering is extended, the required support range will also become larger, which means that the area or space to be covered and supported increases, which may lead to a decrease in the structural stability of the support device and an increase in the risk of structural failure. The support device may be deformed, fractured or collapsed due to the excessive support range, resulting in the original support columns being unable to bear the excessive load, thus endangering the safety of the roadway. Therefore, a temporary roadway support device for metal mining engineering is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art that when the width of the temporary roadway support device for metal mining engineering is extended, the required support range will also become larger, which means that the area or space to be covered and supported increases, which may lead to a decrease in the structural stability of the support device and an increase in the risk of structural failure. The support device may be deformed, fractured or collapsed due to the excessive support range, resulting in the original support columns being unable to bear the excessive load, thus endangering the safety of the roadway, and to propose a temporary roadway support device for metal mining engineering.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A temporary support device for a roadway in metal mining engineering, including a main board. A cavity is fixedly connected below the main board. A bidirectional transmission mechanism is arranged inside the cavity. An auxiliary support mechanism is arranged on the side of the bidirectional transmission mechanism away from the cavity. The auxiliary support mechanism includes a first auxiliary board arranged inside the main board. An L-shaped rack bar is fixedly connected to the side of the first auxiliary board. A bevel gear with a missing corner is meshed and connected to the side of the L-shaped rack bar close to the inside of the main board. Only a quarter of the circumferential length of the rack part is arranged outside the bevel gear with a missing corner. A connecting rod is fixedly connected to the side of the bevel gear with a missing corner. A hollow cylinder is fixedly connected to the side of the connecting rod away from the bevel gear with a missing corner. An auxiliary support board is arranged above the hollow cylinder. A second auxiliary board is slidably connected to the side of the main board away from the first auxiliary board. The bidirectional transmission mechanism drives the first auxiliary board and the second auxiliary board to move. The first auxiliary board drives the bevel gear with a missing corner to rotate by 90 degrees through the L-shaped rack bar. The bevel gear with a missing corner drives the hollow cylinder and the auxiliary support board to rotate by 90 degrees through the connecting rod and form a perpendicular relationship with the main board. Two groups of auxiliary support boards are arranged, and the auxiliary support board on the side close to the second auxiliary board rotates by 90 degrees according to the same principle to increase the support points.

[0007] Among them, the bevel gear with a missing corner only has a rack part with a quarter of the circumferential length. The rack part of the bevel gear with a missing corner can be disengaged after driving the auxiliary support board to rotate by 90 degrees, so that the auxiliary support board only rotates by 90 degrees to maintain a perpendicular relationship with the main board.

[0008] The above technical solution further includes:

[0009] The main board and the first auxiliary board are slidably connected. The bevel gear with a missing corner and the main board are rotatably connected. A spring is fixedly connected above the hollow cylinder. The spring and the auxiliary support board are fixedly connected.

[0010] According to the described temporary support device for a roadway in metal mining engineering in the claim, it is characterized in that a square groove is opened on the side of the main board close to the auxiliary support board for the square groove to rotate.

[0011] The bidirectional transmission mechanism includes a first rotating rod arranged inside the cavity. A first bevel gear is fixedly connected to the side of the first rotating rod close to the cavity. A second bevel gear is meshed and connected to the side of the first bevel gear. A first threaded rod is fixedly connected to the side of the second bevel gear. A moving plate is threadedly connected to the side of the first threaded rod close to the second bevel gear. A connecting plate is fixedly connected below the moving plate. The connecting plate and the first auxiliary board are fixedly connected.

[0012] The cavity is rotatably connected to the first rotating rod, the first threaded rod is rotatably connected to the cavity, the moving plate is slidably connected to the cavity. On the other side of the first bevel gear, there is a set of identical second bevel gears, and through another set of second bevel gears, the second auxiliary plate is driven to move and another set of auxiliary support plates is driven to rotate by the same principle.

[0013] Above the second auxiliary plate, there is a main support plate, and two sets of main support plates are symmetrically arranged above the first auxiliary plate in the same way.

[0014] Among them, the internal structures of the main support plate and the auxiliary support plate correspond to each other, and springs are arranged inside both to ensure the stability of the device during the support process.

[0015] Below the second auxiliary plate, there is a height adjustment mechanism. The height adjustment mechanism includes a support column arranged below the second auxiliary plate. A second rotating rod is rotatably connected to the side of the support column. On the side of the second rotating rod close to the inside of the support column, there is a bevel gear set fixedly connected. Above the bevel gear set, there is a telescopic rod in transmission connection. On the side of the telescopic rod far from the bevel gear set, there is a second threaded rod fixedly connected. A limiting plate is threadedly connected to the side of the second threaded rod.

[0016] Two sets of height adjustment mechanisms are symmetrically arranged below the second auxiliary plate and the first auxiliary plate respectively, and can be adjusted independently in height. The limiting plate is fixedly connected to the support column.

[0017] On the side of the limiting plate far from the support column, there is a connecting seat rotatably connected. Above the connecting seat, there is a bearing plate rotatably connected. The bearing plate is fixedly connected to the second auxiliary plate.

[0018] On the side of the main board close to the connecting rod, there is a substrate fixedly connected. The substrate is rotatably connected to the connecting rod.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, by adding an auxiliary support mechanism, when the device adjusts its width, the auxiliary support plate can automatically unfold to a position perpendicular to the main board as the first auxiliary plate and the second auxiliary plate move, thereby effectively increasing the support points and ensuring the structural stability of the device after expanding the support range, avoiding the risks of deformation, fracture or collapse caused by too large a support range.

[0021] 2. In the present invention, the design of the bidirectional transmission mechanism enables the first auxiliary plate and the second auxiliary plate to move synchronously, and at the same time drives the auxiliary support plate to unfold, realizing the rapid adjustment of the width of the device. The setting of the height adjustment mechanism allows for height adjustment according to the actual situation of the roadway ground, ensuring that the device can closely fit the ground and improving the support effect. This design enhances the adaptability and flexibility of the device to different roadway conditions.

[0022] 3. In the present invention, the setting of the spring can reduce the influence of roadway vibration on the device, further enhancing the safety of the device. In addition, the synergistic effect of the height adjustment mechanism and the auxiliary support mechanism makes the device more stable and reliable during the support process, effectively ensuring the safety of roadway operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a temporary roadway support device for metal mining engineering proposed by the present invention;

[0024] Figure 2 It is an external structural diagram of the present invention;

[0025] Figure 3 It is a three-dimensional structural diagram of the auxiliary support mechanism in the present invention;

[0026] Figure 4 It is a three-dimensional structural diagram of the bidirectional transmission mechanism in the present invention;

[0027] Figure 5 It is an internal structural diagram of the hollow cylinder in the present invention;

[0028] Figure 6 It is an internal structural diagram of the height adjustment mechanism in the present invention;

[0029] Figure 7 It is Figure 3 an enlarged schematic diagram of the structure at position A in

[0030] Figure 8 It is Figure 6 an enlarged schematic diagram of the structure at position B in.

[0031] In the figure: 1, main board; 2, cavity; 3, first auxiliary board; 4, L-shaped rack bar; 5, bevel gear with cutout; 6, connecting rod; 7, hollow cylinder; 8, spring; 9, auxiliary support plate; 10, square groove; 11, first rotating rod; 12, first bevel gear; 13, second bevel gear; 14, first threaded rod; 15, moving plate; 16, connecting plate; 17, second auxiliary board; 18, main support plate; 19, support column; 20, second rotating rod; 21, bevel gear set; 22, telescopic rod; 23, second threaded rod; 24, limiting plate; 25, connecting seat; 26, bearing plate; 27, base plate. DETAILED DESCRIPTION OF THE INVENTION

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] As Figures 1 - 8 shown, a temporary support device for a roadway in a metal mining project proposed by the present invention includes a main board 1. A cavity 2 is fixedly connected below the main board 1. A bidirectional transmission mechanism is arranged inside the cavity 2. An auxiliary support mechanism is arranged on the side of the bidirectional transmission mechanism away from the cavity 2. The auxiliary support mechanism includes a first auxiliary board 3 arranged inside the main board 1. An L-shaped rack bar 4 is fixedly connected to the side of the first auxiliary board 3. A bevel gear 5 with a missing corner is meshed and connected to the side of the L-shaped rack bar 4 close to the inside of the main board 1. Only a quarter of the circumferential rack part is arranged outside the bevel gear 5 with a missing corner. A connecting rod 6 is fixedly connected to the side of the bevel gear 5 with a missing corner. A hollow cylinder 7 is fixedly connected to the side of the connecting rod 6 away from the bevel gear 5 with a missing corner. An auxiliary support board 9 is arranged above the hollow cylinder 7. A second auxiliary board 17 is slidably connected to the side of the main board 1 away from the first auxiliary board 3. The bidirectional transmission mechanism drives the first auxiliary board 3 and the second auxiliary board 17 to move. The first auxiliary board 3 drives the bevel gear 5 with a missing corner to rotate 90 degrees through the L-shaped rack bar 4. The bevel gear 5 with a missing corner drives the hollow cylinder 7 and the auxiliary support board 9 to rotate 90 degrees through the connecting rod 6 and form a vertical relationship with the main board 1. Two groups of auxiliary support boards 9 are arranged, and the auxiliary support board 9 on the side close to the second auxiliary board 17 rotates 90 degrees by the same principle to increase the support points.

[0035] The main board 1 is slidably connected to the first auxiliary board 3. The bevel gear 5 with a missing corner is rotatably connected to the main board 1. A spring 8 is fixedly connected above the hollow cylinder 7. The spring 8 is fixedly connected to the auxiliary support board 9.

[0036] A square groove 10 is opened on the side of the main board 1 close to the auxiliary support board 9 for the square groove 10 to rotate.

[0037] The bidirectional transmission mechanism includes a first rotating rod 11 arranged inside the cavity 2. A first bevel gear 12 is fixedly connected to the side of the first rotating rod 11 close to the cavity 2. A second bevel gear 13 is meshed and connected to the side of the first bevel gear 12. A first threaded rod 14 is fixedly connected to the side of the second bevel gear 13. A moving plate 15 is threadedly connected to the side of the first threaded rod 14 close to the second bevel gear 13. A connecting plate 16 is fixedly connected below the moving plate 15. The connecting plate 16 is fixedly connected to the first auxiliary board 3.

[0038] The cavity 2 is rotatably connected to the first rotating rod 11, the first threaded rod 14 is rotatably connected to the cavity 2, the moving plate 15 is slidably connected to the cavity 2. On the other side of the first bevel gear 12, there is a set of the same second bevel gears 13, and the second auxiliary plate 17 is driven to move and the other set of auxiliary support plates 9 is driven to rotate by the other set of second bevel gears 13 based on the same principle.

[0039] Above the second auxiliary plate 17, there is a main support plate 18, and two sets of main support plates 18 are symmetrically arranged above the first auxiliary plate 3 in the same way.

[0040] In this embodiment, when the staff adjusts the width of the device according to the size of the roadway, a cavity 2 is fixedly connected below the main board 1, and the bidirectional transmission mechanism arranged inside the cavity 2 is started to make the bidirectional transmission mechanism operate. When the bidirectional transmission mechanism operates, it will drive the first auxiliary plate 3 of the auxiliary support mechanism to move through its own structure. When the first auxiliary plate 3 moves, it drives the L-shaped rack bar 4 fixedly connected to its side to move, so that when the L-shaped rack bar 4 moves, it can drive the bevel gear 5 with a missing angle meshed with the upper part of the other side of the L-shaped rack bar 4 to rotate. Since the bevel gear 5 with a missing angle only has a rack on a quarter of the circumferential part, the L-shaped rack bar 4 will only drive the bevel gear 5 with a missing angle to rotate by 90 degrees. When the bevel gear 5 with a missing angle rotates, it drives the connecting rod 6 fixedly connected to its side to rotate. When the connecting rod 6 rotates, it drives the hollow cylinder 7 fixedly connected to the other side of the connecting rod 6 to rotate by 90 degrees, so that the hollow cylinder 7 drives the spring 8 fixedly connected to the upper part of the hollow cylinder 7 and the slidably connected auxiliary support plate 9 to rotate by 90 degrees. The auxiliary support plate 9 rotates by 90 degrees and is perpendicular to the main board 1. The bidirectional transmission mechanism will drive the second auxiliary plate 17 to move in the same way, so that the second auxiliary plate 17 drives the other set of auxiliary support plates 9 to rotate by 90 degrees. The two sets of auxiliary support plates 9 will leave the inside of the main board 1 through the two square grooves 10 opened above the main board 1. The spring 8 fixedly connected above the hollow cylinder 7 can reduce the impact of roadway vibration on the device, realizing width adjustment while raising the two sets of auxiliary support plates 9 to increase the support points to ensure uniform force during support.

[0041] The operation of the bidirectional transmission mechanism is as follows: The staff rotates the first rotating rod 11, which drives the first bevel gear 12 fixedly connected to the other end of the first rotating rod 11 to rotate. When the first bevel gear 12 rotates, it drives the second bevel gear 13 meshed with its lower part to rotate. When the second bevel gear 13 rotates, it drives the first threaded rod 14 fixedly connected to its side to rotate. The first threaded rod 14 passes through the inside of the moving plate 15 and rotates, generating a helical force due to its threaded connection with the moving plate 15. Since the first threaded rod 14 is rotatably connected to the cavity 2 and the moving plate 15 is slidably connected to the cavity 2, the moving plate 15 starts to move. When the moving plate 15 moves, it drives the connecting plate 16 fixedly connected to the other side of the moving plate 15 to move. The connecting plate 16 drives the first auxiliary plate 3 to move to activate the auxiliary support mechanism. And on the other side of the first bevel gear 12, there is a same set of second bevel gears 13, and the other set of second bevel gears 13 drives the second auxiliary plate 17 and the other set of auxiliary support plates 9 to operate in the same principle.

[0042] Embodiment 2

[0043] As Figures 1 - 8 shown, based on Embodiment 1, a height adjustment mechanism is provided below the second auxiliary plate 17. The height adjustment mechanism includes a support column 19 provided below the second auxiliary plate 17. A second rotating rod 20 is rotatably connected to the side of the support column 19. A bevel gear set 21 is fixedly connected to the side of the second rotating rod 20 close to the inside of the support column 19. A telescopic rod 22 is drivingly connected above the bevel gear set 21. A second threaded rod 23 is fixedly connected to the side of the telescopic rod 22 away from the bevel gear set 21. A limiting plate 24 is threadedly connected to the side of the second threaded rod 23.

[0044] Two sets of height adjustment mechanisms are symmetrically provided below both the second auxiliary plate 17 and the first auxiliary plate 3, and the height can be adjusted independently. The limiting plate 24 is fixedly connected to the support column 19.

[0045] A connecting seat 25 is rotatably connected to the side of the limiting plate 24 away from the support column 19. A bearing plate 26 is rotatably connected above the connecting seat 25. The bearing plate 26 is fixedly connected to the second auxiliary plate 17.

[0046] A base plate 27 is fixedly connected to the side of the main board 1 close to the connecting rod 6. The base plate 27 is rotatably connected to the connecting rod 6.

[0047] In this embodiment, two sets of height adjustment mechanisms are symmetrically arranged below the second auxiliary plate 17, and two sets of height adjustment mechanisms are also arranged below the first auxiliary plate 3. When the height adjustment mechanism is started, the staff rotates the second rotating rod 20 to drive the bevel gear set 21 fixedly connected to its side to rotate. The bevel gear set 21 changes the power transmission direction through two small bevel gears. When the bevel gear set 21 rotates, it drives the telescopic rod 22 arranged above it to rotate. When the telescopic rod 22 rotates, it drives the second threaded rod 23 fixedly connected to its other end to rotate. The second threaded rod 23 rotates inside the limit plate 24. Since the limit plate 24 is threadedly connected to the second threaded rod 23 and fixedly connected to the main board 1, the second threaded rod 23 starts to rotate and rise, driving the telescopic rod 22 to extend. The other side of the second threaded rod 23 is rotatably connected to the connection seat 25. The second threaded rod 23 starts to drive the connection seat 25 without driving the connection seat 25 to rotate. The connection seat 25 forms a rotational connection relationship with the second auxiliary plate 17 through the bearing plate 26, so that the connection seat 25 drives the second auxiliary plate 17 to move the main board 1 upward, completing the height adjustment operation of the device. The four sets of height adjustment mechanisms provided all have the above functions, enabling each set of height adjustment mechanisms to adjust to different heights to cope with uneven ground.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary support device for a roadway in metal mining engineering, including a main board (1), characterized in that, A cavity (2) is fixedly connected below the main board (1). A bidirectional transmission mechanism is arranged inside the cavity (2). An auxiliary support mechanism is arranged on the side of the bidirectional transmission mechanism away from the cavity (2). The auxiliary support mechanism includes a first auxiliary board (3) arranged inside the main board (1). An L-shaped rack bar (4) is fixedly connected to the side of the first auxiliary board (3). A bevel gear with a missing corner (5) is meshed and connected to the side of the L-shaped rack bar (4) close to the inside of the main board (1). Only a quarter-circular rack part is arranged outside the bevel gear with a missing corner (5). A connecting rod (6) is fixedly connected to the side of the bevel gear with a missing corner (5). A hollow cylinder (7) is fixedly connected to the side of the connecting rod (6) away from the bevel gear with a missing corner (5). An auxiliary support board (9) is arranged above the hollow cylinder (7). A second auxiliary board (17) is slidably connected to the side of the main board (1) away from the first auxiliary board (3). The bidirectional transmission mechanism drives the first auxiliary board (3) and the second auxiliary board (17) to move. The first auxiliary board (3) drives the bevel gear with a missing corner (5) to rotate by 90 degrees through the L-shaped rack bar (4). The bevel gear with a missing corner (5) drives the hollow cylinder (7) and the auxiliary support board (9) to rotate by 90 degrees through the connecting rod (6) and forms a vertical relationship with the main board (1). Two groups of auxiliary support boards (9) are arranged, and the auxiliary support board (9) on the side close to the second auxiliary board (17) rotates by 90 degrees based on the same principle and increases the support points.

2. The temporary support device for roadway in metal mining engineering according to claim 1, characterized in that, The main board (1) is slidably connected to the first auxiliary board (3). The bevel gear with a missing corner (5) is rotatably connected to the main board (1). A spring (8) is fixedly connected above the hollow cylinder (7). The spring (8) is fixedly connected to the auxiliary support board (9).

3. A temporary support device for a roadway in a metal mining project according to claim 1, characterized in that, A square groove (10) is opened on the side of the main board (1) close to the auxiliary support board (9) so that the square groove (10) can rotate.

4. A temporary support device for a roadway in a metal mining project according to claim 1, characterized in that, The bidirectional transmission mechanism includes a first rotating rod (11) arranged inside the cavity (2). A first bevel gear (12) is fixedly connected to the side of the first rotating rod (11) close to the cavity (2). A second bevel gear (13) is meshed and connected to the side of the first bevel gear (12). A first threaded rod (14) is fixedly connected to the side of the second bevel gear (13). A moving plate (15) is threadedly connected to the side of the first threaded rod (14) close to the second bevel gear (13). A connecting plate (16) is fixedly connected below the moving plate (15). The connecting plate (16) is fixedly connected to the first auxiliary board (3).

5. The temporary support device for roadway in metal mining engineering according to claim 4, wherein The cavity (2) is rotatably connected to the first rotating rod (11). The first threaded rod (14) is rotatably connected to the cavity (2). The moving plate (15) is slidably connected to the cavity (2). A same group of second bevel gears (13) is arranged on the other side of the first bevel gear (12), and drives the second auxiliary board (17) to move and drives the other group of auxiliary support boards (9) to rotate based on the same principle through the other group of second bevel gears (13).

6. The temporary support device for roadway in metal mining engineering according to claim 1, wherein Above the second auxiliary plate (17), there is a main support plate (18), and two sets of the main support plates (18) are symmetrically arranged above the first auxiliary plate (3) as well.

7. A temporary support device for a roadway in a metal mining project according to claim 1, characterized in that, Below the second auxiliary plate (17), there is a height adjustment mechanism. The height adjustment mechanism includes a support column (19) arranged below the second auxiliary plate (17). A second rotating rod (20) is rotatably connected to the side of the support column (19). A bevel gear set (21) is fixedly connected to the side of the second rotating rod (20) close to the inside of the support column (19). An expansion rod (22) is drivingly connected above the bevel gear set (21). A second threaded rod (23) is fixedly connected to the side of the expansion rod (22) away from the bevel gear set (21). A limiting plate (24) is threadedly connected to the side of the second threaded rod (23).

8. A temporary support device for a roadway in a metal mining project according to claim 7, characterized in that, Two sets of the height adjustment mechanisms are symmetrically arranged below both the second auxiliary plate (17) and the first auxiliary plate (3), and the height can be adjusted independently. The limiting plate (24) is fixedly connected to the support column (19).

9. The temporary support device for roadway in metal mining engineering according to claim 7, characterized in that, A connecting seat (25) is rotatably connected to the side of the limiting plate (24) away from the support column (19). A bearing plate (26) is rotatably connected above the connecting seat (25). The bearing plate (26) is fixedly connected to the second auxiliary plate (17).

10. The temporary support device for roadway in metal mining engineering according to claim 1, characterized in that, A substrate (27) is fixedly connected to the side of the main board (1) close to the connecting rod (6). The substrate (27) is rotatably connected to the connecting rod (6).

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