Coal mine tunneling supporting assembly

Abstract

The utility model relates to the technical field of coal mine equipment, in particular to a coal mine tunneling supporting assembly which comprises a connecting frame, a telescopic groove is formed in the connecting frame, a top plate is fixedly connected to the top of the connecting frame, a rivet is fixedly connected to the top of the top plate, and a motor is fixedly connected to the bottom of the connecting frame. A connecting rod is fixedly connected to the driving end of the motor, a gear is fixedly connected to the top of the connecting rod, a plurality of evenly-distributed rack plates abut against the outer side of the gear, a limiting plate is fixedly connected to the left side of each rack plate, limiting blocks are fixedly connected to the left side and the right side of the connecting frame, and a protection plate is fixedly connected to the right side of each rack plate; and a plurality of uniformly distributed hydraulic rods are fixedly connected to the bottom of the top plate. According to the utility model, through the mutual cooperation of the top plate, the protection plate, the gear and the rack plate, the problems that the supporting assembly is difficult to adapt to the size difference of the mine tunnel and the adjustment is inflexible are effectively solved, and the stability and the safety of the mine tunnel are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine equipment technology, and in particular to a coal mine tunneling support component. Background Technology

[0002] Coal mining is mostly carried out underground. Tunneling operations involve excavating shafts, roadways, and chambers in rock or ore layers. During tunneling, the stability of the surrounding rock is affected by ground stress and mining disturbances, which can lead to collapses, spalling, and other problems that threaten the safety of workers and equipment. Therefore, timely support is essential. Traditional coal mine tunneling support components mainly support and protect the roof, supplemented by the constraint and reinforcement of the roadway sides, to achieve effective support for the surrounding rock of the roadway. This ensures the safe progress of tunneling operations to a certain extent and provides a basic safety barrier for coal mining.

[0003] Most existing coal mine tunneling support components are typically not adaptable to variations in tunnel size and lack flexibility during adjustment. These components struggle to fit snugly against the tunnel's perimeter, resulting in ineffective support and impacting tunnel stability and safety. Furthermore, when support components need to be connected or removed, poorly designed connections make precise alignment during installation difficult, leading to insufficient connection strength and premature failure. This increases the cost and difficulty of secondary support. Utility Model Content

[0004] The purpose of this utility model is to provide a coal mine tunneling support component to solve the problems mentioned in the background art.

[0005] A coal mine tunneling support component includes a connecting frame with an internal telescopic groove. A top plate is fixedly connected to the top of the connecting frame, and rivets are fixedly connected to the top of the top plate. A motor is fixedly connected to the bottom of the connecting frame, and a connecting rod is fixedly connected to the drive end of the motor. A gear is fixedly connected to the top of the connecting rod, and multiple evenly distributed rack plates abut against the outside of the gear. A limit plate is fixedly connected to the left side of the rack plate, and limit blocks are fixedly connected to the left and right sides of the connecting frame. A protective plate is fixedly connected to the right side of the rack plate, and multiple evenly distributed hydraulic rods are fixedly connected to the bottom of the top plate.

[0006] As a further description of the above technical solution:

[0007] A coal mine tunneling support assembly includes a connecting frame, characterized in that: a telescopic groove is formed inside the connecting frame; a top plate is fixedly connected to the top of the connecting frame; a rivet is fixedly connected to the top of the top plate; a motor is fixedly connected to the bottom of the connecting frame; a connecting rod is fixedly connected to the drive end of the motor; a gear is fixedly connected to the top of the connecting rod; and multiple evenly distributed rack plates abut against the outer side of the gear.The side is fixedly connected to a limiting plate, and the connecting frame is on the left. Limiting blocks are fixedly connected to both sides of the right side of the rack plate. A protective plate is fixedly connected, and multiple evenly distributed hydraulic rods are fixedly connected to the bottom of the top plate.

[0008] As a further description of the above technical solution:

[0009] The first slider is slidably connected in the first groove, and the second slider is slidably connected in the second groove.

[0010] As a further description of the above technical solution:

[0011] The gear abuts against the connecting frame, and the rack plate abuts against the connecting frame.

[0012] As a further description of the above technical solution:

[0013] The rack plate is slidably connected in the expansion groove, and the gear is slidably connected in the expansion groove.

[0014] As a further description of the above technical solution:

[0015] The limiting plate is slidably connected within the telescopic groove, and the limiting block is fixedly connected within the telescopic groove.

[0016] As a further description of the above technical solution:

[0017] The rack plate abuts against the front side of the limiting block.

[0018] As a further description of the above technical solution:

[0019] The rivet is conical.

[0020] By adopting the above technical solution, the problems of existing technologies, such as the difficulty in flexibly adjusting support components according to the size of the mine tunnel to provide effective support, the difficulty in aligning the installation of connection parts, and the insufficient connection strength leading to premature failure, have been solved, resulting in increased costs and difficulties for secondary support.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. In this utility model, the motor, connecting rod, gear and rack work together. While the rack slides in the telescopic groove, it pushes the protective plate to move left and right. At the same time, the hydraulic rod at the bottom can adjust the height of the top plate to adapt to mine tunnels of different heights. With the rivets inserted into the top of the mine tunnel, the top plate is effectively prevented from collapsing. This component solves the problem that existing support components are difficult to adapt to the differences in mine tunnel size and are not flexible in adjustment, which greatly improves the stability and safety of the mine tunnel.

[0023] 2. In this utility model, slide block one and slide block two can slide freely in the slide groove one and slide groove two respectively, and the universal joint can achieve multi-angle rotation. When multiple support components need to be connected, the threaded groove at the front can be threadedly connected to the threaded rod at the rear. This allows the components to flexibly adjust the angle and position of each component according to the special terrain and complex geological conditions of the mine. This flexible connection and adjustment method improves the installation efficiency, further ensures the timeliness and effectiveness of mine support, and reduces safety hazards caused by untimely or improper support. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the top plate of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the telescopic groove of this utility model;

[0027] Figure 4 This is a schematic diagram of the universal joint structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the threaded rod, which is the subject of this utility model.

[0029] In the diagram: 1. Connecting frame; 2. Top plate; 3. Rivet; 4. Motor; 5. Connecting rod; 6. Gear; 7. Rack plate; 8. Limiting plate; 9. Limiting block; 10. Telescopic groove; 11. Protective plate; 12. Hydraulic rod; 13. Base plate; 14. Universal joint; 15. Slider 1; 16. Slider 2; 17. Slide groove 1; 18. Slide groove 2; 19. Threaded groove; 20. Threaded rod. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] Reference Figures 1-5This utility model provides an embodiment of a coal mine tunneling support component, including a connecting frame 1, which is the main support structure and provides the installation foundation for the entire support component. The connecting frame 1 has an internal telescopic groove 10, providing sliding adjustment space for internal components. A top plate 2 is fixedly connected to the top of the connecting frame 1, directly supporting the top of the mine tunnel and preventing the collapse of the top rock strata. A conical rivet 3 is fixedly connected to the top of the top plate 2 to enhance the connection strength between the top plate 2 and the top. A motor 4 is fixedly connected to the bottom of the connecting frame 1, and a connecting rod 5 is fixedly connected to the drive end of the motor 4. A gear 6 is fixedly connected to the top of the connecting rod 5, abutting against the inside of the connecting frame 1 and slidably connected within the telescopic groove 10. The motor 4 provides driving force for the rotation of the gear 6, and the connecting rod 5 transmits the rotational power of the motor 4, thereby driving the gear 6. The gear 6 rotates, and multiple evenly distributed rack plates 7 abut against the outer side of the gear 6. The rack plates 7 abut against the connecting frame 1 and slide within the telescopic groove 10. The rotation of the gear 6 can synchronously drive the rack plates 7 to move left and right. A limit plate 8 is fixedly connected to the left side of the rack plates 7 and slides within the telescopic groove 10. The limit plate 8 is to prevent the rack plates 7 from coming off the outer periphery of the gear 6. Limit blocks 9 are fixedly connected to the left and right sides of the connecting frame 1 and are fixedly connected within the telescopic groove 10. The rack plates 7 abut against the front side of the limit blocks 9 to prevent the rack plates 7 from coming off within the telescopic groove 10. A protective plate 11 is fixedly connected to the right side of the rack plates 7. The protective plate 11 is used to withstand the pressure of the surrounding rock on the side wall. Multiple evenly distributed hydraulic rods 12 are fixedly connected to the bottom of the top plate 2. The hydraulic rods 12 can adjust the height of the top plate 2 to adapt to the complex terrain of the mine tunnel top with its undulating elevation.

[0032] Reference Figures 3-5 In one embodiment of this utility model: a hydraulic rod 12 is fixedly connected to a plurality of evenly distributed base plates 13 at its bottom. The base plates 13 are supporting components for the support assembly and the bottom surface of the mine tunnel. A plurality of evenly distributed sliding grooves 17 are provided at the front of the base plates 13, and a plurality of evenly distributed sliding grooves 18 are provided at the rear of the base plates 13. A plurality of evenly distributed sliders 15 are slidably connected to the front of the base plates 13, and the sliders 15 are slidably connected in the sliding grooves 17. A plurality of evenly distributed sliders 16 are slidably connected to the rear of the base plates 13, and the sliders 16 are slidably connected in the sliding grooves 18. Inside, slide 17 and slide 218 provide sliding tracks for slide block 15 and slide block 216 respectively. Through the front and rear distribution design, the universal joint 14 at the front and the threaded rod 20 at the rear can be adjusted independently to adapt to the complex terrain of uneven or inclined bottom surface of the mine tunnel. The universal joint 14 is fixedly connected to the front of slide block 15. The universal joint 14 can be rotated to adjust the connection angle. The universal joint 14 has a threaded groove 19 at the front. The threaded rod 20 is fixedly connected to the rear of slide block 216. The threaded groove 19 is used to connect the threaded rod 20 of another support component.

[0033] Working principle: First, when the coal mine tunneling support assembly is put into use, it will first be adjusted vertically according to the height of the tunnel top. The hydraulic rod 12 will then extend, pushing the roof plate 2 upwards until the conical rivet 3 is tightly embedded in the ore layer at the top of the tunnel. Its unique shape allows it to bond tightly with the rock strata, generating a strong anchoring force and firmly fixing the roof plate 2 to the top of the tunnel. After completing the vertical adjustment and ensuring the roof plate 2 is stably fixed, the horizontal adjustment will then be performed to adapt to the tunnel top. When the width of the mine tunnel is determined, the motor 4 is started, and the gear 6 is driven to rotate through the connecting rod 5. This causes the rack plate 7 to slide linearly within the telescopic groove 10 inside the connecting frame 1. At this time, the protective plate 11 will move to both sides of the mine tunnel, and the limiting plate 8 will slide along with the rack plate 7. When the protective plate 11 moves to the appropriate position, it ensures that the protective plate 11 can fit tightly against the mine tunnel sidewall with appropriate pressure. The protective plate 11 can effectively block the surrounding rock of the mine tunnel sidewall, prevent the occurrence of rockfall accidents, and provide reliable support for the mine tunnel in the horizontal direction.

[0034] When connecting two coal mine tunneling support components, a quick and stable connection can be achieved through the sliding adjustment structure at the bottom. The universal joint 14 of the first component can be directly threaded into the threaded rod 20 of the second component via the threaded groove 19 at the front. During installation, first slide the sliders 15 and 16 of both components according to the width of the tunnel to adjust the position between the universal joint 14 and the threaded rod 20, aligning the threaded rod 20 with the threaded groove 19. If there is an angular deviation at the bottom of the tunnel, the multi-directional rotation capability of the universal joint 14 can automatically adjust the tilt angle of the threaded groove 19 to ensure precise connection with the threaded rod 20. Then, by rotating the threaded rod... 20, so that its thread is fully screwed into the thread groove 19, and the extension length of the thread rod 20 is adjusted according to the actual spacing to achieve a rigid connection between the two components in the horizontal direction. This connection method relies on the sliding freedom of the first slide groove 17 and the second slide groove 18, the angle compensation of the universal joint 14 and the length adjustment of the thread rod 20. It can adapt to the changes in width, inclination angle and unevenness of the bottom surface of the mine tunnel. It not only ensures the connection strength, but also forms a continuous support structure through the series connection of multiple components, which significantly improves the integrity and reliability of the support system under complex geological conditions. It solves the problems of installation difficulties and insufficient strength caused by position deviation when connecting traditional components.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 coal mine heading support assembly comprising a connecting frame (1) characterised in that: The connecting frame (1) is internally provided with an expansion slot (10), the top of the connecting frame (1) is fixedly connected with a top plate (2), the top of the top plate (2) is fixedly connected with a rivet (3), the bottom of the connecting frame (1) is fixedly connected with a motor (4), the driving end of the motor (4) is fixedly connected with a connecting rod (5), the top of the connecting rod (5) is fixedly connected with a gear (6), the outer side of the gear (6) is abutted with a plurality of evenly distributed rack plates (7), the left side of the rack plate (7) is fixedly connected with a limiting plate (8), the left and right sides of the connecting frame (1) are fixedly connected with limiting blocks (9), the right side of the rack plate (7) is fixedly connected with a protective plate (11), and the bottom of the top plate (2) is fixedly connected with a plurality of evenly distributed hydraulic rods (12).

2. A coal mine heading support assembly according to claim 1, characterised in that: The bottom of the hydraulic rod (12) is fixedly connected with a plurality of evenly distributed bottom plates (13), the front of the bottom plate (13) is provided with a plurality of evenly distributed sliding grooves (17), the rear of the bottom plate (13) is provided with a plurality of evenly distributed sliding grooves (18), the front of the bottom plate (13) is slidably connected with a plurality of evenly distributed sliding blocks (15), the rear of the bottom plate (13) is slidably connected with a plurality of evenly distributed sliding blocks (16), the front of the sliding block (15) is fixedly connected with a universal joint (14), the front of the universal joint (14) is provided with a threaded groove (19), and the rear of the sliding block (16) is fixedly connected with a threaded rod (20).

3. A coal mine heading support assembly according to claim 2, characterised in that: The sliding block (15) is slidably connected in the sliding groove (17), and the sliding block (16) is slidably connected in the sliding groove (18).

4. A coal mine heading support assembly according to claim 1, characterised in that: The gear (6) abuts in the connecting frame (1), and the rack plate (7) abuts in the connecting frame (1).

5. A coal mine heading support assembly according to claim 1, characterised in that: The rack plate (7) is slidably connected in the expansion slot (10), and the gear (6) is slidably connected in the expansion slot (10).

6. A coal mine heading support assembly according to claim 1 wherein: The limiting plate (8) is slidably connected in the expansion slot (10), and the limiting block (9) is fixedly connected in the expansion slot (10).

7. A coal mine heading support assembly according to claim 1 wherein: The rack plate (7) abuts in front of the limiting block (9).

8. A coal mine heading support assembly according to claim 1 wherein: The rivet (3) is conical.

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