Quick positioning and supporting device for coal mining roadway support

Abstract

The invention discloses a quick positioning and supporting device for coal mining roadway supporting, and relates to the technical field of coal mine supporting, the positioning and supporting device comprises a supporting frame, a lifting supporting column is fixedly arranged at the lower end of the supporting frame, and a supporting seat is fixedly arranged at one end, away from the supporting frame, of the lifting supporting column; telescopic connecting arms are arranged between the adjacent supporting seats, and the telescopic driving direction of the telescopic connecting arms is the same as the laying direction of the supporting frame. The blocking mechanism comprises a first extension baffle, the first extension baffle is rotationally connected to the front end of the supporting frame, and the driving end of the first extension baffle is in transmission connection with a first driving part; when the supporting frames are located at the supporting positions, the first extension baffles swing to the blocking positions under the driving of the first driving pieces, and the first extension baffles are used for blocking broken stones falling from gaps between the adjacent supporting frames; according to the positioning and supporting device, gaps between the adjacent supporting frames are filled by means of the first extension baffles, and rockfall is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine support, and in particular relates to a rapid positioning support device for supporting a coal mining tunnel. Background Art

[0002] In coal mining, tunnel support is a critical step in ensuring construction safety and production efficiency. Coal tunnels are subject to complex geological conditions and often face risks such as roof collapse and surrounding rock deformation. Promptly erecting support structures is crucial to prevent major tunnel collapses, protect workers, and achieve safe production.

[0003] The existing tunnel support method mostly uses support frames to support the tunnel top. However, the support frames are frame structures. The gravel shaken off during the construction process falls directly from the gaps between the frames and cannot be blocked, posing a threat to the equipment and workers during the construction process, and has a low safety factor. Summary of the Invention

[0004] The purpose of the present invention is to provide a quick positioning support device for coal tunnel support with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A quick positioning support device for supporting a coal mining tunnel, comprising: A support frame, wherein a lifting support column is fixedly provided at the lower end of the support frame, and a support seat is fixedly provided at one end of the lifting support column away from the support frame. The lifting support columns are distributed in an orderly manner along the laying direction of the support frame, and a telescopic connecting arm is provided between adjacent support seats, and the telescopic driving direction of the telescopic connecting arm is the same as the laying direction of the support frame; The blocking mechanism includes a first extension baffle, the first extension baffle is rotatably connected to the front end of the support frame, the driving end of the first extension baffle is transmission-connected to a first driving member, and the first driving member is fixedly disposed on the support frame; When the support frame is located at the supporting position, the first extension baffle is driven by the first driving member to swing to the blocking position. The first extension baffle is used to block gravel falling from the gap between adjacent support frames.

[0006] As a further optimization scheme of the present invention, along the laying direction of the support frame, the rear end of the support frame is rotatably connected to the second extension baffle, and the driving end of the second extension baffle is transmission-connected to the second driving member, and the second driving member is fixedly arranged on the support frame. When the support frame is in the supporting position, under the drive of the second driving member and the first driving member, the second extension baffle and the first extension baffle swing to the blocking position in sequence. At this time, the first extension baffle is located below the second extension baffle, and there is a gap area between the second extension baffle and the rear support frame.

[0007] As a further optimization solution of the present invention, a sealing gasket is provided on the first extension baffle. When the second extension baffle and the first extension baffle swing to the blocking position in sequence, the sealing gasket is located between the second extension baffle and the first extension baffle and is in sealing contact with the second extension baffle.

[0008] As a further optimization scheme of the present invention, an early warning mechanism is provided on the first extension baffle. When the second extension baffle and the first extension baffle swing to the blocking position in sequence, the early warning mechanism is located in the gap area. The early warning mechanism is used to warn of the rockfall safety status at the corresponding position of the gap area.

[0009] As a further optimization solution of the present invention, the warning mechanism includes a supporting plate, a warning drive component and a display light, the input end of the warning drive component is transmission-connected to the supporting plate, the output end of the warning drive component is electrically connected to the display light, and the display light is arranged on a side of the first extension plate away from the supporting plate; When the second extension baffle and the first extension baffle swing to the blocking position in sequence, the supporting plate is located in the gap area.

[0010] As a further optimization scheme of the present invention, the early warning drive assembly includes a guide rod, a spring, a first abutment block and a second abutment block. The end of the support plate facing the first extension baffle is fixedly connected to the guide rod, the guide rod passes through the first extension baffle and is slidingly connected to the first extension baffle, and a spring is sleeved on the guide rod. The end of the support plate facing the first extension baffle is also fixedly connected to the first abutment block, and the second abutment block is fixedly arranged on the first extension baffle. The first abutment block and the second abutment block are arranged correspondingly, and the first abutment block and the second abutment block are respectively electrically connected to the display light.

[0011] As a further optimization solution of the present invention, a plurality of the display lights are provided, and the plurality of the display lights are arranged in parallel.

[0012] As a further optimization scheme of the present invention, a first blanking chute is provided on the support frame, the first blanking chute extends along the laying direction of the support frame, and the bottom of the first blanking chute is an inclined surface, the bottom position of the first blanking chute close to the two ends of the support frame is lower than the bottom position of the first blanking chute away from the two ends of the support frame, when the second extension baffle and the first extension baffle swing to the blocking position in turn, the bottommost end position of the first blanking chute is higher than the upper edge position of the support plate.

[0013] As a further optimization solution of the present invention, a second blanking trough is provided on the second extension baffle, the second blanking trough extends along the laying direction of the support frame, and the bottom of the second blanking trough is an inclined surface, and the second blanking trough is connected to the adjacent first blanking trough.

[0014] As a further optimization solution of the present invention, the bottom end of the support seat is fixedly connected to a base, and a fastening bolt is threadedly connected to the base.

[0015] The present invention has at least the following beneficial effects: the rapid positioning support device for coal tunnel support provided by the present invention includes a support frame and a blocking mechanism, wherein the first extension baffle in the blocking mechanism fills the gap between adjacent support frames at the support position, effectively preventing falling rocks from hitting construction workers and ensuring construction safety; A second extended baffle is also provided on the support frame, and a supporting plate is provided on the first extended baffle. When the first extended baffle and the second extended baffle are in the blocking position, the supporting plate is located between the second extended baffle and the support frame at the rear end. The supporting plate not only receives the gravel falling from above itself, but also receives the gravel falling from the first and second dropping troughs on both sides, so that when the first abutment block and the second abutment block abut, the display light is on, so as to promptly remind the construction personnel that there is a loose tunnel top in the area around the supporting plate, and timely reinforcement is carried out to ensure construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The present invention Figure 1 Schematic diagram of the front structure; Figure 3 This invention Figure 2 Enlarged view of point A in the middle; Figure 4 It is a partial structural schematic diagram of the blocking mechanism of the present invention when it is in the initial position.

[0017] In the figure: 1. Support frame; 11. First blanking chute; 2. Second extension baffle; 21. Second blanking chute; 22. Second driving member; 3. Support plate; 31. First abutment block; 32. Second abutment block; 33. Spring; 34. Guide rod; 35. Indicator light; 36. Sealing gasket; 4. First extension baffle; 41. First driving member; 5. Support seat; 51. Base; 52. Fastening bolt; 6. Telescopic connecting arm; 7. Lifting support column. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1 like Figure 1 and Figure 2 As shown, a rapid positioning support device for supporting a coal tunnel comprises: A support frame 1 is provided with a lifting support column 7 fixedly provided at the lower end of the support frame 1, and a support seat 5 is fixedly provided at one end of the lifting support column 7 away from the support frame 1. The lifting support columns 7 are distributed in an orderly manner along the laying direction of the support frame 1, and a telescopic connecting arm 6 is provided between adjacent support seats 5. The telescopic driving direction of the telescopic connecting arm 6 is the same as the laying direction of the support frame 1; The blocking mechanism includes a first extension baffle 4, which is rotatably connected to the front end of the support frame 1, and a driving end of the first extension baffle 4 is transmission-connected to a first driving member 41, which is fixedly provided on the support frame 1; When the support frame 1 is located at the supporting position, the first extension baffle 4 is driven by the first driving member 41 to swing to the blocking position. The first extension baffle 4 is used to block gravel falling from the gap between adjacent support frames 1.

[0020] In the above embodiment, when the supporting device is laid in the tunnel, the supporting device consisting of multiple support frames 1 is stretched out by the telescopic connecting arm 6. Figure 2 It is laid out in the left and right directions as shown, i.e. Figure 2The left and right directions shown are the laying directions of the support frames 1. At this time, the adjacent support frames 1 are spaced apart and fixed to the tunnel ground through the support seat 5. The bottom end of the support seat 5 is fixedly connected to a base 51, and a fastening bolt 52 is threadedly connected to the base 51, and the base 51 is fixed to the ground with the help of the fastening bolt 52; at this time, the lifting support column 7 is driven to move the support frame 1 up to abut the top of the tunnel, and then under the drive of the first driving member 41, the first extension baffle 4 is rotated counterclockwise to the blocking position to fill the gap between the adjacent support frames 1, thereby effectively preventing the debris falling during the construction process from hitting the construction workers and ensuring the safety of the construction environment. Moreover, before laying, the first extension baffle 4 is in a retracted state, and the adjacent support frames 1 are also retracted close to each other, which greatly reduces the overall occupied space of the support device and facilitates the delivery of the support device to the support position in the tunnel.

[0021] It should be noted that the first driving member 41 is a driving motor and a rotating shaft. The driving motor is fixedly set on the support frame 1, and the rotating shaft is rotatably set on the support frame 1. The first extension baffle 4 is fixedly set on the rotating shaft, so that under the drive of the driving motor, the rotating shaft drives the first extension baffle 4 to switch between the initial position and the blocking position.

[0022] For example, see Figure 1 、 Figure 2 and Figure 3 , along the laying direction of the support frame 1, the rear end of the support frame 1 is rotatably connected to the second extension baffle 2, and the driving end of the second extension baffle 2 is transmission-connected to the second driving member 22, and the second driving member 22 is fixedly arranged on the support frame 1. When the support frame 1 is in the supporting position, under the drive of the second driving member 22 and the first driving member 41, the second extension baffle 2 and the first extension baffle 4 are swung to the blocking position in sequence. At this time, the first extension baffle 4 is located below the second extension baffle 2, and there is a gap area between the second extension baffle 2 and the rear support frame 1.

[0023] The gap area is shielded by the joint action of the first extension baffle 4 and the second extension baffle 2, so that when in the support position, the distance between adjacent support frames 1 can be further expanded to expand the overall support distance of the support device, that is, within the same tunnel length, the number of required support frames 1 is reduced, reducing the equipment investment cost. Moreover, the first extension baffle 4 is located below the second extension baffle 2, so that the two form a shielding structure connected from top to bottom, covering the gap area between adjacent support frames 1, and preventing falling rocks and broken coal from falling from the gap.

[0024] It should be noted that the second driving member 22 may also include a driving motor and a rotating shaft. The driving motor is fixedly arranged on the support frame 1, and the rotating shaft is rotatably arranged on the support frame 1. The second extension baffle 2 is fixedly arranged on the rotating shaft, so that under the drive of the driving motor, the rotating shaft drives the second extension baffle 2 to switch between the initial position and the blocking position.

[0025] For example, see Figure 3 A sealing gasket 36 is provided on the first extension baffle 4. When the second extension baffle 2 and the first extension baffle 4 swing to the blocking position in sequence, the sealing gasket 36 is located between the second extension baffle 2 and the first extension baffle 4 and is sealed against the second extension baffle 2.

[0026] Example 2 Based on Example 1, continue to refer to Figure 3 and Figure 4 The first extension baffle 4 is equipped with an early warning mechanism. When the second and first extension baffles 2 and 4 swing to the blocking position, the early warning mechanism is located in the gap area and is used to issue an early warning of rockfall safety conditions at the corresponding position in the gap area. This early warning mechanism allows construction personnel to promptly understand the status of the tunnel mining process, allowing them to take timely remedial measures in risky areas and ensure construction safety.

[0027] For example, see Figure 3 and Figure 4 The warning mechanism includes a supporting plate 3, a warning drive component and a display light 35. The input end of the warning drive component is transmission-connected to the supporting plate 3, and the output end of the warning drive component is electrically connected to the display light 35. The display light 35 is arranged on the side of the first extension plate away from the supporting plate 3; When the second extension baffle 2 and the first extension baffle 4 swing to the blocking position in sequence, the supporting plate 3 is located in the gap area.

[0028] The early warning drive assembly includes a guide rod 34, a spring 33, a first abutment block 31 and a second abutment block 32. The end of the supporting plate 3 facing the first extension baffle 4 is fixedly connected to the guide rod 34, the guide rod 34 passes through the first extension baffle 4 and is slidably connected to the first extension baffle 4, and a spring 33 is sleeved on the guide rod 34. The end of the supporting plate 3 facing the first extension baffle 4 is also fixedly connected to the first abutment block 31, and the first extension baffle 4 is fixedly provided with a second abutment block 32. The first abutment block 31 and the second abutment block 32 are correspondingly arranged, and the first abutment block 31 and the second abutment block 32 are respectively electrically connected to the display light 35.

[0029] When loose gravel falls due to construction vibration at the top of the tunnel, the fallen rocks accumulate on the supporting plate 3 for a long time, and the spring 33 is compressed. When the first abutment block 31 and the second abutment block 32 abut, the display light 35 is powered on and lights up, thereby promptly informing the construction personnel that there are many fallen rocks at this location. This indirectly reflects that there may be a lot of gravel at the top of the tunnel at this location and the top structure is not reliable, thereby urging the construction personnel to reinforce the top of the tunnel at this location in time.

[0030] There are multiple display lights 35, and the multiple display lights 35 are arranged in parallel, so that when a display light 35 is damaged, the remaining display lights 35 can still light up to provide a warning.

[0031] For example, see Figure 1 The support frame 1 is provided with a first chute 11, which extends along the laying direction of the support frame 1, and the bottom of the first chute 11 is an inclined surface. The bottom position of the first chute 11 near the two ends of the support frame 1 is lower than the bottom position of the first chute 11 away from the two ends of the support frame 1. When the second extension baffle 2 and the first extension baffle 4 swing to the blocking position in sequence, the bottom end of the first chute 11 is higher than the upper edge of the supporting plate 3. This allows the supporting plate 3 to not only receive the falling rocks above it, but also allow the gravel falling from above the support frame 1 to slide into the supporting plate 3 through the first chute 11. This allows the supporting plate 3 to not only timely reflect the rockfall situation in the area above the supporting plate 3, but also the rockfall situation in the adjacent areas, so that construction workers can reinforce the areas around the supporting plate 3 to improve construction safety.

[0032] Moreover, if Figure 1 and Figure 3 As shown, the second extended baffle 2 is provided with a second chute 21, which extends along the laying direction of the support frame 1. The bottom of the second chute 21 is an inclined surface, and the second chute 21 is connected to the adjacent first chute 11. This allows the areas on both sides of the support plate 3 to receive loose gravel that falls from above the support frame 1.

[0033] It should be noted that the quick positioning support device for supporting the coal mining tunnel, when in use, the retractable connecting arm 6 and the lifting support column 7 in the storage state, as well as the first extension baffle 4 and the second extension baffle 2 in the initial position, make the entire support device take up less space, easy to transport to the tunnel and shift to the support position, by extending the telescopic connecting arm 6, the support device consisting of multiple support frames 1 is moved along the support frame 1. Figure 2 As shown, the support frames 1 are laid out in the left and right directions, and are spaced apart from each other and fixed to the roadway floor through the support base 5. The lifting support column 7 is driven to move the support frame 1 upward to abut the top of the roadway. Then, driven by the second driving member 22 and the first driving member 41, the second extension baffle 2 and the first extension baffle 4 swing to the blocking position in sequence. Figure 2 and Figure 3 As shown, the second extension baffle 2 and the first extension baffle 4 block the gap between adjacent support frames 1 to prevent gravel from falling, wherein the supporting plate 3 is located in the gap area; During the construction process, the gravel falling from the top of the tunnel gradually accumulates on the supporting plate 3. When the supporting plate 3 moves downward and abuts the first abutment block 31 and the second abutment block 32, it means that too much gravel has fallen and the top of the tunnel may become loose. At this time, the display light 35 lights up to remind the construction workers that the top of the tunnel at this position needs to be reinforced.

[0034] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A rapid positioning support device for coal tunnel support, characterized in that: include: A support frame (1), wherein a lifting support column (7) is fixedly provided at the lower end of the support frame (1), a support seat (5) is fixedly provided at one end of the lifting support column (7) away from the support frame (1), the lifting support columns (7) are distributed in an orderly manner along the laying direction of the support frame (1), and a telescopic connecting arm (6) is provided between adjacent support seats (5), and the telescopic driving direction of the telescopic connecting arm (6) is the same as the laying direction of the support frame (1); The blocking mechanism comprises a first extension baffle (4), the first extension baffle (4) being rotatably connected to the front end of the support frame (1), the driving end of the first extension baffle (4) being transmission-connected to a first driving member (41), and the first driving member (41) being fixedly arranged on the support frame (1); When the support frame (1) is located at the supporting position, the first extended baffle (4) is driven by the first driving member (41) to swing to the blocking position, and the first extended baffle (4) is used to block gravel falling from the gap between adjacent support frames (1).

2. A rapid positioning support device for coal tunnel support according to claim 1, characterized in that: Along the laying direction of the support frame (1), the rear end of the support frame (1) is rotatably connected to the second extension baffle (2), the driving end of the second extension baffle (2) is transmission-connected to the second driving member (22), and the second driving member (22) is fixedly arranged on the support frame (1). When the support frame (1) is located at the supporting position, the second extension baffle (2) and the first extension baffle (4) are driven by the second driving member (22) and the first driving member (41), and the second extension baffle (2) and the first extension baffle (4) are swung to the blocking position in sequence. At this time, the first extension baffle (4) is located below the second extension baffle (2), and a gap area is provided between the second extension baffle (2) and the rear support frame (1).

3. A rapid positioning support device for coal tunnel support according to claim 2, characterized in that: A sealing gasket (36) is provided on the first extension baffle (4); when the second extension baffle (2) and the first extension baffle (4) swing to the blocking position in sequence, the sealing gasket (36) is located between the second extension baffle (2) and the first extension baffle (4) and is in sealing contact with the second extension baffle (2).

4. A rapid positioning support device for coal tunnel support according to claim 2, characterized in that: The first extension baffle (4) is provided with an early warning mechanism. When the second extension baffle (2) and the first extension baffle (4) swing to the blocking position in sequence, the early warning mechanism is located in the gap area. The early warning mechanism is used to issue an early warning of the rockfall safety state at the corresponding position in the gap area.

5. A rapid positioning support device for coal tunnel support according to claim 4, characterized in that: The warning mechanism comprises a supporting plate (3), a warning drive component and a display light (35), wherein the input end of the warning drive component is transmission-connected to the supporting plate (3), and the output end of the warning drive component is electrically connected to the display light (35), and the display light (35) is arranged on a side of the first extension plate away from the supporting plate (3); When the second extension baffle (2) and the first extension baffle (4) swing to the blocking position in sequence, the supporting plate (3) is located in the gap area.

6. A rapid positioning support device for coal tunnel support according to claim 5, characterized in that: The warning drive assembly includes a guide rod (34), a spring (33), a first abutment block (31) and a second abutment block (32); one end of the support plate (3) facing the first extension baffle (4) is fixedly connected to the guide rod (34); the guide rod (34) passes through the first extension baffle (4) and is slidably connected to the first extension baffle (4); the spring (33) is sleeved on the guide rod (34); one end of the support plate (3) facing the first extension baffle (4) is also fixedly connected to the first abutment block (31); the first extension baffle (4) is fixedly provided with the second abutment block (32); the first abutment block (31) and the second abutment block (32) are correspondingly provided; the first abutment block (31) and the second abutment block (32) are respectively electrically connected to the display light (35).

7. A rapid positioning support device for coal tunnel support according to claim 6, characterized in that: A plurality of the display lights (35) are provided, and the plurality of the display lights (35) are arranged in parallel.

8. A rapid positioning support device for coal tunnel support according to claim 7, characterized in that: The support frame (1) is provided with a first blanking trough (11), which extends along the laying direction of the support frame (1), and the bottom of the first blanking trough (11) is an inclined surface. The bottom position of the first blanking trough (11) at a position close to the two ends of the support frame (1) is lower than the bottom position of the first blanking trough (11) at a position away from the two ends of the support frame (1). When the second extension baffle (2) and the first extension baffle (4) are swung to the blocking position in sequence, the bottommost end position of the first blanking trough (11) is higher than the upper edge position of the supporting plate (3).

9. A rapid positioning support device for coal tunnel support according to claim 8, characterized in that: A second blanking trough (21) is provided on the second extension baffle (2), the second blanking trough (21) extends along the laying direction of the support frame (1), and the bottom of the second blanking trough (21) is an inclined surface. The second blanking trough (21) is connected to the adjacent first blanking trough (11).

10. A rapid positioning support device for coal tunnel support according to claim 1, characterized in that: The bottom end of the support seat (5) is fixedly connected to a base (51), and a fastening bolt (52) is threadedly connected to the base (51).

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