A device for supporting a coal mine roadway

Abstract

The utility model relates to a kind of for coal mine roadway supporting device, including the aqueduct frame set on bridge, the aqueduct frame movably sleeve in the outer periphery of bridge, between continuously being provided with in position oil cylinder, and the bottom end of bridge is provided with gyro wheel, guiding bridge moves and realizes the fixation of both sides of mine tunnel;The inside of aqueduct frame is downwardly supported with arch frame, it is connected with bridge top, provides the rigid support of mine tunnel top;The support system is adjusted and maintained quickly according to the change of mine tunnel environment by modularization design, greatly improves the long-term stability and security of mine tunnel support, provides efficient, flexible and safe support solution for coal mine production.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel construction equipment, and specifically relates to a support device for coal mine roadways. Background Technology

[0002] In coal mining and transportation, the stability and safety of mine tunnel support have always been significant challenges to coal mine production. Traditional tunnel support methods typically rely on timber supports, concrete supports, or steel frame support systems, but these methods have several obvious shortcomings in practical applications. First, traditional support structures lack flexibility, especially when the tunnel width is irregular or the geological conditions are complex. Traditional supports often struggle to be quickly adjusted and adapted. This can lead to unstable support during mining, making the tunnel more susceptible to support failure, collapses, and other safety accidents.

[0003] Furthermore, the installation, dismantling, and maintenance of traditional support structures are cumbersome and time-consuming, especially in environments with highly variable mine conditions, where the support effectiveness is difficult to guarantee. With the continuous changes in the mine environment, particularly with increased mining depth, pressure, and complex geological conditions, traditional support methods are unable to meet the continuous stability requirements of mine support, easily leading to insufficient support, collapse of the mine roof or sidewalls, and safety hazards. Therefore, the industry urgently needs a steel structure support system adapted to complex mine structures. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a support device for coal mine roadways. The specific technical solution is as follows: This utility model provides a support device for coal mine roadways, including an aqueduct frame installed on a bridge frame. The aqueduct frame is movably fitted around the outer periphery of the bridge frame, with a positioning cylinder connected therebetween. Rollers are provided at the bottom end of the bridge frame to guide the movement of the bridge frame and achieve fixation on both sides of the mine roadway. An arch frame is provided inside the aqueduct frame and is connected to the top of the bridge frame to provide rigid support for the top of the mine roadway.

[0005] As a preferred technical solution of this utility model, the roller is movably attached to the bottom end of the cable tray and can be adjusted vertically along the cable tray for immediate movement of the cable tray.

[0006] As a preferred technical solution of this utility model, the bottom ends of the bridge frame and the aqueduct frame are symmetrically provided with inner support legs and outer support legs, respectively, which are used in conjunction with rollers to achieve static locking.

[0007] As a preferred technical solution of this utility model, the aqueduct frame includes multiple movable arc-shaped shield plates, which are spliced ​​end to end to form the outer perimeter of the aqueduct frame and connected to the bridge frame through positioning cylinders. The uneven support of the aqueduct frame is achieved by lifting with the positioning cylinders, which is used to adapt to the terrain of different mine tunnels.

[0008] As a preferred embodiment of this utility model, the cable tray includes multiple C-shaped beams arranged side by side, with transverse ribs sandwiched between them to prevent misalignment, and diagonal ribs passing through the bends of the C-shaped beams for segmental support of the cable tray.

[0009] As a preferred embodiment of the present invention, the shield plate includes a shell that is laid on the outer periphery of the shield plate. The inner side of the shield plate is provided with crisscrossing reinforcing ribs, and the edge is provided with a hinge seat for connecting and fixing the shield plates.

[0010] As a preferred technical solution of this utility model, the outer edge of the aqueduct frame is provided with a set of scales for unfolding and calibration, which includes a side beam circumferentially attached to the edge of the aqueduct frame. Multiple calibration scales facing the outer peripheral surface are clamped on the side beam. The aqueduct frame is unfolded and connected to the mine tunnel by the positioning cylinder to achieve auxiliary positioning.

[0011] As a preferred embodiment of this utility model, the calibration ruler is embedded with a spring for reducing impact, and a transverse ruler wing is provided at the head of the calibration ruler to prevent deviation in positioning.

[0012] As a preferred technical solution of this utility model, the shield plates at the ends of the aqueduct frame are symmetrically provided with top connecting rods, which are connected downward to shield wings. The shield wings are driven by the top connecting rods to unfold outward to achieve all-round support for the mine tunnel.

[0013] As a preferred embodiment of this utility model, a detachable safety bar is attached to the bottom of the C-shaped beam, which spans across both ends of the C-shaped beam for secondary protection of the C-shaped beam.

[0014] As a preferred technical solution of this utility model, the roller is equipped with a hydraulic cylinder. When the cable tray needs to be moved, the roller is pulled down to realize the instantaneous movement of the cable tray. When the cable tray is fixed, the roller is driven up to realize static locking.

[0015] The beneficial effects of this utility model are: This application provides a coal mine roadway support device that achieves flexibility and stability in mine roadway support through an innovative design of a bridge frame and an aqueduct frame. The aqueduct frame is movably fitted around the outer periphery of the bridge frame and precisely adjusted by a positioning cylinder, allowing the support to flexibly adjust according to changes in the width and shape of the mine roadway, thus ensuring its rapid adaptation to different needs. This flexibility avoids the inability of traditional support structures to cope with irregular roadway shapes or complex geological conditions, effectively improving the adaptability of the support and reducing potential safety hazards during mine roadway support.

[0016] The rollers installed at the bottom of the cable tray guide its movement and provide fixed support on both sides of the mine tunnel. This design not only enhances the stability of the support structure but also effectively distributes the pressure on the support, avoiding the risk of support deformation or mine tunnel collapse due to excessive local pressure. Through this combination of mobile and fixed support, the support structure can provide a more stable and safer support effect throughout the entire coal mining process.

[0017] The downward-supporting arches inside the aqueduct connect to the top of the bridge frame, providing rigid support for the tunnel roof and enhancing its load-bearing capacity. This prevents the tunnel roof from collapsing due to increased geological pressure or deeper mining. This design effectively improves the stability of the tunnel roof, providing more reliable support for continuous mining.

[0018] Furthermore, the steel structure support itself possesses high corrosion resistance and durability, enabling it to adapt to harsh conditions such as high humidity and high dust levels in coal mine environments, ensuring safety and stability during long-term use. Compared to traditional wooden or concrete support systems, the steel structure support has stronger load-bearing capacity and a longer service life, reducing the frequency and cost of maintenance due to structural instability or material aging. The overall structural design is simple, installation and disassembly are more convenient, and the construction cycle is shorter, significantly improving construction efficiency and reducing labor costs. More importantly, through its modular design, this support system can be quickly adjusted and maintained according to changes in the mine environment, greatly improving the long-term stability and safety of mine support and providing an efficient, flexible, and safe support solution for coal mine production. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 This invention illustrates a structural diagram of the combination of the aqueduct frame and the bridge frame. Figure 3 A three-dimensional structural schematic diagram of the aqueduct frame in this utility model is shown; Figure 4 A three-dimensional structural schematic diagram of the cable tray in this utility model is shown; Figure 5 A three-dimensional structural schematic diagram of the shield plate in this utility model is shown; Figure 6 A three-dimensional structural schematic diagram of the ruler assembly in this utility model is shown; The diagram shows: 1. Cable tray; 11. C-beam; 12. Transverse reinforcement; 13. Diagonal reinforcement; 14. Inner support; 15. Roller; 2. Aqueduct frame; 21. Arch frame; 22. Shield plate; 221. Shell; 222. Reinforcing rib; 23. Top connecting rod; 24. Outer support; 25. Shield wing; 3. Safety bar; 4. Positioning cylinder; 5. Scale assembly; 51. Side beam; 52. Calibration scale; 53. Scale wing. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model. Example

[0021] To address the technical problems in the background section, the following support device for coal mine roadways is provided: Combination Figure 1-4 As shown, a support device for coal mine roadways includes an aqueduct frame 2 mounted on a bridge frame 1. The aqueduct frame 2 is movably fitted around the outer periphery of the bridge frame 1, with a positioning cylinder 4 connected therebetween. Rollers 15 are provided at the bottom end of the bridge frame 1 to guide the movement of the bridge frame 1 and fix both sides of the mine roadway. An arch frame 21 is provided inside the aqueduct frame 2 and supports downwards. It is connected to the top of the bridge frame 1 to provide rigid support for the top of the mine roadway.

[0022] Combination Figure 1-4 As shown, the first embodiment provided in this application achieves flexibility and stability in mine tunnel support during coal mining through the innovative design of the cable tray 1 and the aqueduct 2. The aqueduct 2 is movably fitted around the outer periphery of the cable tray 1 and precisely adjusted by the positioning cylinder 4, allowing the support to flexibly adjust according to changes in the width and shape of the mine tunnel, thereby ensuring its rapid adaptation to different mine tunnel requirements. This flexibility avoids the inability of traditional support structures to cope with irregular mine tunnel shapes or complex geological conditions, effectively improving the adaptability of the support and reducing potential safety hazards during mine tunnel support.

[0023] The rollers 15 installed at the bottom of the cable tray 1 guide its movement and provide fixed support on both sides of the mine tunnel. This design not only enhances the stability of the support but also effectively distributes the pressure on the support, avoiding the risk of support deformation or mine tunnel collapse due to excessive local pressure. Through this combination of movement and fixation, the support can provide a more stable and safer support effect throughout the entire coal mining process.

[0024] The downward-supporting arch frame 21 inside the aqueduct frame 2 connects to the top of the bridge frame 1, providing rigid support for the top of the mine tunnel, enhancing its load-bearing capacity, and preventing collapse of the tunnel top due to increased geological pressure or mining depth. This design effectively improves the stability of the tunnel top, providing more reliable support for continuous mining.

[0025] Furthermore, the steel structure support itself possesses high corrosion resistance and durability, enabling it to adapt to harsh conditions such as high humidity and high dust levels in coal mine environments, ensuring safety and stability during long-term use. Compared to traditional wooden or concrete support systems, the steel structure support has stronger load-bearing capacity and a longer service life, reducing the frequency and cost of maintenance due to structural instability or material aging. The overall structural design is simple, installation and disassembly are more convenient, and the construction cycle is shorter, significantly improving construction efficiency and reducing labor costs. More importantly, through its modular design, this support system can be quickly adjusted and maintained according to changes in the mine environment, greatly improving the long-term stability and safety of mine support and providing an efficient, flexible, and safe support solution for coal mine production. Example

[0026] Combination Figure 1-4 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, the roller 15 is movably attached to the bottom end of the cable tray 1 and can be vertically adjusted along the cable tray 1 for immediate movement of the cable tray 1.

[0027] The bottom ends of the bridge frame 1 and the aqueduct frame 2 are symmetrically provided with inner support legs 14 and outer support legs 24, which work together with rollers 15 to achieve static locking.

[0028] Combination Figure 1-4As shown, the second embodiment provided in this application utilizes movable rollers 15 at the bottom of the cable tray 1, along with inner supports 14 and outer supports 24 at both ends of the cable tray 1 and the aqueduct frame 2, to provide flexible adjustment and stable support. The rollers 15 can be vertically adjusted along the cable tray 1, allowing for immediate movement of the cable tray 1 and enabling rapid adaptation and adjustment of the support structure under different mine conditions. This design effectively improves the adaptability of the support, enabling rapid adjustment of the support configuration even in situations with irregular mine widths and shapes, avoiding the inflexibility of traditional support structures in complex environments, and reducing the risk of support instability and mine collapse.

[0029] Meanwhile, the inner supports 14 and outer supports 24 at both ends of the cable tray 1, in conjunction with the rollers 15, can statically lock after the support has been moved to the appropriate position, ensuring the stability and durability of the support during the mine tunnel support process. This static locking function enhances the support capacity of the support, preventing displacement of the support position due to changes in mine tunnel pressure and other external forces, thus ensuring the long-term stability of the mine tunnel support structure. Through this design, the support can maintain efficient and stable support in complex and ever-changing mine tunnel environments, ensuring the safety of the mine tunnel top and sides. Compared with traditional support systems, the design provided in this embodiment not only has stronger load-bearing capacity and deformation resistance, but also can quickly adjust and reposition itself when the mine tunnel environment changes, ensuring the continuous safety and stability of the mine tunnel support and safeguarding coal mine mining and transportation. Example

[0030] Combination Figure 1-5 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, the aqueduct frame 2 includes multiple movable arc-shaped shield plates 22, which are spliced ​​end to end to form the outer periphery of the aqueduct frame 2 and connected to the bridge frame 1 through the positioning cylinder 4. The aqueduct frame 2 is unevenly supported as it is lifted by the positioning cylinder 4, which is used to adapt to the terrain of different mine tunnels.

[0031] The shield plate 22 includes a shell 221, which is laid on the outer periphery of the shield plate 22. The inner side of the shield plate 22 is provided with crisscrossing reinforcing ribs 222, and the edge is provided with a hinge seat for connecting and fixing the shield plates 22.

[0032] The shield plates 22 at the ends of the aqueduct frame 2 are symmetrically provided with top connecting rods 23, which are connected downward to shield wings 25. As the top connecting rods 23 drive the shield wings 25 to unfold outward to achieve all-round support for the mine tunnel.

[0033] Combination Figure 1-5As shown, the third embodiment provided in this application utilizes multiple movable arc-shaped shield plates 22, connected to the bridge frame 1 via positioning cylinders 4, enabling the height and position of the support to be adjusted at any time, thereby achieving flexible adaptation to the mine tunnel. This design uses cylinder lifting to achieve uneven support for the aqueduct frame 2, allowing for rapid adjustment according to different mine tunnel terrain changes, adapting to mine tunnels of varying widths and shapes. This avoids the problem of traditional support methods being unable to effectively adapt to complex geological conditions, providing a more efficient and safer mine tunnel support solution. The design of the arc-shaped shield plates 22 not only enhances the compressive strength of the support but also improves the structural rigidity through crisscrossing reinforcing ribs 222, enabling the shield plates 22 to withstand greater geological pressure and external impacts, while preventing deformation of the support during use.

[0034] The edges of the shield plates 22 are equipped with hinged seats, which can firmly connect multiple shield plates 22 to ensure the stability and durability of the support structure. Each shield plate 22 is designed to independently adapt to different mine tunnel shapes, greatly improving the flexibility and stability of the support system and avoiding uneven or insufficient support of the mine tunnel. The top connecting rod 23 at the end of the shield plate 22 drives the shield wings 25 to unfold outwards, achieving all-around support of the mine tunnel and ensuring stable support at the top and sides, preventing collapse or deformation due to insufficient support. The design of the top connecting rod 23 and the shield wings 25 makes the support more uniform on both sides of the mine tunnel, enhancing the tunnel's compressive strength and stability during mining.

[0035] The flexibility and adjustability of this design enable the support system to adapt to different mine environments and mining conditions, providing safer, more stable, and more efficient support for coal mining. Compared with traditional support systems, this embodiment not only has stronger load-bearing capacity and adaptability but also can quickly adjust to changes in mine conditions, ensuring the safety and stability of the mine. At the same time, the overall structure is simple, making installation, adjustment, and maintenance more convenient, reducing labor costs and construction time, and improving the efficiency of coal mine production. Through this innovative support design, coal mines can provide more durable and stable support during mining, significantly reducing safety hazards caused by unstable support. Example

[0036] Combination Figure 3-6 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, the outer edge of the aqueduct frame 2 is provided with a set of scales 5 for unfolding and calibration. It includes a side beam 51 that is circumferentially attached to the edge of the aqueduct frame 2. Multiple calibration scales 52 facing the outer peripheral surface are clamped on the side beam 51. The aqueduct frame 2 is unfolded and connected to the mine channel by the positioning cylinder 4 to achieve auxiliary positioning.

[0037] The calibration ruler 52 is embedded with a spring to reduce impact, and a transverse ruler wing 53 is provided at the head of the calibration ruler 52 to prevent the calibration ruler 52 from shifting during positioning.

[0038] Combination Figure 3-6 As shown, in the third embodiment of this application, a set of calibration rulers 52 is installed on the outer edge of the aqueduct frame 2, which significantly improves the positioning accuracy and ease of operation of the mine tunnel support. The set of calibration rulers 52 consists of side beams 51 circumferentially attached to the edge of the aqueduct frame 2. Multiple calibration rulers 52 facing outwards are mounted on the side beams 51. The aqueduct frame 2 is deployed to connect with the mine tunnel via a positioning cylinder 4, thus achieving an auxiliary positioning function. This design allows the support to be precisely adjusted in position according to the shape and requirements of the mine tunnel, ensuring the stability and safety of the support in mine tunnel support. Springs are embedded in the calibration rulers 52 to reduce impact, effectively mitigating the impact force that the support may encounter during deployment and preventing excessive vibration and deformation during operation. The spring design not only enhances the support's impact resistance but also improves the long-term stability and reliability of the system, ensuring accurate positioning of the support within the mine tunnel and avoiding positioning errors caused by excessive impact.

[0039] Furthermore, the head of the calibration ruler 52 is provided with a transverse ruler wing 53 to prevent the calibration ruler 52 from shifting during deployment, ensuring the stability of the calibration ruler 52 and further improving the positioning accuracy. This design makes the support more precise and stable during mine tunnel support, avoiding support instability caused by the offset or error of the calibration ruler 52. Compared with traditional support systems, the support structure of this embodiment not only has higher adaptability and flexibility, but also effectively reduces errors during construction, improving support accuracy and work efficiency. The precise positioning function of the calibration ruler 52 group, combined with the adjustability of the aqueduct frame 2, ensures accurate support of the support under different mine tunnel conditions, avoiding safety problems such as collapses due to insufficient or uneven support during mine tunnel mining. Example

[0040] Combination Figure 1-4 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, the cable tray 1 includes a plurality of C-shaped beams 11 arranged side by side, with transverse ribs 12 sandwiched between them to prevent misalignment. Diagonal ribs 13 are inserted through the bends of the C-shaped beams 11 for segmental support of the cable tray 1.

[0041] A detachable safety bar 3 is attached to the bottom of the C-shaped beam, which spans across both ends of the C-shaped beam for secondary protection.

[0042] Combination Figure 1-4As shown, in the fourth embodiment of this application, the cable tray 1 is provided with strength and stability by combining multiple C-shaped beams 11 arranged side by side with transverse ribs 12 to prevent misalignment. Diagonal ribs 13 are inserted at the bends of the C-shaped beams 11, which not only enhances the supporting capacity of the cable tray 1 but also makes its structure more robust, capable of withstanding greater loads and stresses. This design enables the cable tray 1 to stably support the mine tunnel structure during coal mining or transportation, avoiding instability caused by insufficient support and ensuring the safety of the mine tunnel.

[0043] Meanwhile, the detachable safety bar 3 installed at the bottom of the C-shaped beam provides a secondary layer of protection for the cable tray 1. This design ensures the safety of the cable tray 1 while also improving the structural reliability, preventing structural displacement or loosening caused by external forces or long-term use. The detachable design of the safety bar 3 makes subsequent maintenance, inspection, and replacement more convenient, greatly reducing maintenance costs and time, and improving overall construction efficiency. Through this innovative design, the cable tray 1 can not only quickly adapt to changes in the mine tunnel, but also effectively reduce safety hazards caused by structural damage, ensuring the long-term stable operation of the support system during coal mining.

[0044] Working principle and usage process of this utility model: Movement and static locking of cable tray 1: Roller 15 moves down, lifting cable tray 1, and is moved by external traction. Then roller 15 is retracted, and cable tray 1 switches to inner support leg 14 to achieve static locking. At the same time, safety bar 3 is installed to further protect C-shaped beam 11.

[0045] Start the hydraulic cylinder adjustment shield 22: The aqueduct frame 2 is internally supported by multiple movable arc-shaped shield plates 22. The shield plates 22 are spliced ​​end to end and connected to the bridge frame 1 via hydraulic cylinders. Under the action of the hydraulic cylinders, the shield plates 22 can be independently supported and deployed to adapt to changes in different mine tunnel terrains.

[0046] The unfolding and positioning of calibration scale 52: The outer edge of the aqueduct frame 2 is equipped with a set of calibration rulers 52. The shield plate 22 is pulled out by the positioning cylinder 4, and the calibration rulers 52 are deployed and positioned accordingly to assist in the accurate support of the mine tunnel.

[0047] Unfold the top connecting rod 23 and provide all-around support: The top connecting rod 23 of the end shield plate 22 unfolds to pull the shield wing 25 to the ground and move towards the outer perimeter of the mine tunnel for support.

[0048] Monitoring and maintenance: After the support frame is installed, the system can be monitored and maintained. Regularly check the connection of the shield plate 22 and the stability of the reinforcing ribs 222 to ensure the accuracy and proper function of the calibration ruler 52. Adjust the position of the support frame promptly using the lifting and lowering function of the hydraulic cylinder.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support device for coal mine roadways, comprising an aqueduct frame (2) mounted on a bridge frame (1), characterized in that: The aqueduct frame (2) is movably fitted around the outer periphery of the bridge frame (1), with a positioning cylinder (4) connected therebetween, and a roller (15) is provided at the bottom of the bridge frame (1) to guide the bridge frame (1) to move and achieve fixation on both sides of the mine roadway; the interior of the aqueduct frame (2) is supported by an arch frame (21) which is connected to the top of the bridge frame (1) to provide rigid support for the top of the mine roadway.

2. The support device for coal mine roadways according to claim 1, characterized in that: The roller (15) is movably attached to the bottom of the cable tray (1) and can be vertically adjusted along the cable tray (1) for immediate movement of the cable tray (1).

3. A support device for coal mine roadways according to claim 2, characterized in that: The bottom ends of the bridge frame (1) and the aqueduct frame (2) are respectively symmetrically provided with inner support legs (14) and outer support legs (24), which are used in conjunction with rollers (15) to achieve static locking.

4. A support device for coal mine roadways according to claim 3, characterized in that: The aqueduct frame (2) includes multiple movable arc-shaped shield plates (22), which are spliced ​​together to form the outer periphery of the aqueduct frame (2) and connected to the bridge frame (1) through the positioning cylinder (4). The aqueduct frame (2) is unevenly supported by the positioning cylinder (4) and is used for terrain adaptation of different mine tunnels.

5. A support device for coal mine roadways according to claim 4, characterized in that: The cable tray (1) includes multiple C-shaped beams (11) arranged side by side, with transverse ribs (12) sandwiched between them to prevent misalignment. Diagonal ribs (13) are inserted through the bends of the C-shaped beams (11) for segmental support of the cable tray (1).

6. A support device for coal mine roadways according to claim 5, characterized in that: The shield plate (22) includes a shell (221) which is laid on the outer periphery of the shield plate (22). The inner side of the shield plate (22) is provided with crisscrossing reinforcing ribs (222), and its edge is provided with hinge seats for connecting and fixing the shield plates (22).

7. A support device for coal mine roadways according to claim 6, characterized in that: The outer edge of the aqueduct frame (2) is provided with a set of scales (5) for deployment and calibration, which includes a side beam (51) circumferentially attached to the edge of the aqueduct frame (2). Multiple calibration scales (52) facing the outer periphery are clamped on the side beam (51). The aqueduct frame (2) is deployed and connected to the mine channel by the positioning cylinder (4) to achieve auxiliary positioning.

8. A support device for coal mine roadways according to claim 7, characterized in that: The calibration ruler (52) is equipped with a spring for reducing impact, and a transverse ruler wing (53) is provided at the head of the calibration ruler (52) to prevent the calibration ruler (52) from shifting.

9. A support device for coal mine roadways according to claim 8, characterized in that: The shield plate (22) at the end of the aqueduct frame (2) is symmetrically provided with top connecting rods (23), which are connected downward to shield wings (25). The shield wings (25) are driven by the top connecting rods (23) to unfold outward to achieve all-round support of the mine tunnel.

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