Coal mine tunneling supporting device
By introducing adjustment and protection devices into the coal mine tunneling support system, the problems of insufficient flexibility and protection performance have been solved, achieving rapid adjustment and effective buffering of impact forces, thereby improving the safety and efficiency of coal mine tunneling.
Patent Information
- Application Number
- CN202520380837.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing coal mine tunneling support devices have simple structures, lack flexibility, are difficult to quickly adjust to adapt to different tunneling scenarios, and have limited protective performance, failing to effectively buffer impact forces and provide sufficient safety guarantees.
It employs an adjustment device and a protective device. The adjustment device uses a rotary motor to drive a screw and a movable block to achieve rapid adjustment of position and height. The protective device uses a high-strength compression spring and a reinforcing rib structure to buffer impact force and provide safety.
It enables flexible adjustment of the support device under different tunneling scenarios, improves safety and protection capabilities, ensures the safety of workers, and enhances the structural stability and flexibility of the device.
Smart Images
Figure CN223621622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a coal mine tunneling support device. Background Technology
[0002] In coal mining, tunneling is carried out to open up new coal-bearing spaces and ensure the continuous operation of the mine. However, coal mine tunneling faces complex geological conditions and a high-risk working environment.
[0003] However, existing coal mine tunneling support devices still have the following problems: 1. Traditional coal mine tunneling support devices are often relatively simple in structure and lack flexibility. They are difficult to quickly adjust to changing needs in different tunneling scenarios; 2. The protective performance of existing support devices needs improvement. During coal mine tunneling, there may be dangers such as roof collapse and rockfall, and some support devices have limited ability to buffer and protect against impacts, failing to provide sufficient safety for workers. In conclusion, to improve the safety and efficiency of coal mine tunneling, a new type of coal mine tunneling support device is needed. Utility Model Content
[0004] The main purpose of this utility model is to provide a coal mine tunneling support device that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A coal mine tunneling support device includes a first connecting frame and a second connecting frame. Self-locking pulleys are fixedly connected to the lower front and lower rear parts of the first and second connecting frames. Limiting grooves are provided on the left inner wall and right inner wall of the first and second connecting frames. An adjusting device is fixedly connected to the front end of the first connecting frame, and a protective device is fixedly connected to the upper end of the adjusting device.
[0007] The adjusting device includes a rotary motor and a fixed column. The output end of the rotary motor is fixedly connected to a screw through the first connecting frame. A first movable block is threadedly connected to the outer surface of the screw. A second movable block is movably sleeved on the outer surface of the fixed column. Limiting plates are fixedly connected to the middle of the left and right ends of the first and second movable blocks. Fixed blocks are fixedly connected to the upper ends of the first and second movable blocks. Electric push rods are embedded inside the two fixed blocks. The rear end of the rotary motor is fixedly connected to the front end of the first connecting frame. The front end and rear end of the fixed column are fixedly connected to the front inner wall and rear inner wall of the second connecting frame, respectively.
[0008] Preferably, the rear end of the screw is movably connected to the rear inner wall of the first connecting frame via a bearing.
[0009] By adopting the above technical solution, the rear end of the screw is connected to the first connecting frame through a bearing, which ensures smooth rotation, improves the stability and accuracy of the adjustment device, and facilitates the adjustment of the device position.
[0010] Preferably, all four limiting plates are disposed in four limiting grooves.
[0011] By adopting the above technical solution, the limiting plate is set in the limiting groove to ensure the stable movement of the movable block, improve the reliability of the adjustment device, and ensure the accuracy of the support device.
[0012] Preferably, the protective device includes a connecting plate, with arc-shaped plates fixedly connected to both the front and rear ends of the connecting plate, three springs fixedly connected to the upper end of the connecting plate, and baffles fixedly connected to the ends of the three springs away from the connecting plate, and the lower end of the connecting plate fixedly connected to the output ends of two electric push rods.
[0013] By adopting the above technical solutions, the protective device can effectively buffer the impact force, provide safety for the workers, improve the safety of coal mine tunneling, and has a reasonable structural design.
[0014] Preferably, all three springs are high-strength compression springs, and the three springs are evenly distributed on the upper end of the connecting plate.
[0015] By adopting the above technical solution, high-strength compression springs are evenly distributed, enhancing the buffering effect and improving the stability of the protective device, thus providing a more reliable safety guarantee for coal mine tunneling.
[0016] Preferably, the connection between the connecting plate and the arc-shaped plate is reinforced with reinforcing ribs.
[0017] By adopting the above technical solution, the connection between the connecting plate and the arc plate is reinforced with ribs to enhance the structural strength, improve the reliability of the protective device, and ensure the safety of coal mine tunneling.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1. In this utility model, by providing an adjustment device, a rotary motor drives the screw to rotate, causing the first movable block to move on the screw, while the second movable block slides on the fixed column, thereby realizing rapid adjustment of the height and position of the device, which can adapt to different tunneling scenarios. The limiting plates on the first and second movable blocks are set in the limiting grooves on the inner walls of the first and second connecting frames to ensure the stability and accuracy of movement, further improving the flexibility of the device during the adjustment process.
[0020] 2. In this utility model, by providing a protective device, when faced with dangers such as roof collapse or rockfall, the baffle first bears the impact force, and the impact force is buffered by the compression deformation of the spring, providing effective protection for the workers. The spring is a high-strength compression spring, which can withstand a large impact force, and the three springs are evenly distributed at the upper end of the connecting plate, which improves the uniformity and stability of the buffer. The connection between the connecting plate and the arc plate is reinforced with reinforcing ribs, which enhances the overall structural strength of the protective device, improves the resistance to impact force, and provides sufficient safety for the workers. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a coal mine tunneling support device according to the present invention;
[0022] Figure 2 This is a split schematic diagram of the first connecting frame of a coal mine tunneling support device according to the present invention;
[0023] Figure 3 This is a schematic diagram showing the connection and disassembly of the adjustment device of a coal mine tunneling support device according to the present invention;
[0024] Figure 4 This is a schematic diagram showing the connection and disassembly of the protective device of a coal mine tunneling support device according to the present invention.
[0025] In the diagram: 1. First connecting frame; 2. Second connecting frame; 3. Self-locking pulley; 4. Limiting groove; 5. Adjusting device; 6. Protective device; 51. Rotary motor; 52. Screw; 53. First movable block; 54. Fixed column; 55. Second movable block; 56. Limiting plate; 57. Fixed block; 58. Electric push rod; 61. Connecting plate; 62. Arc plate; 63. Spring; 64. Baffle. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Please see Figure 1-4 This utility model provides a technical solution:
[0030] A coal mine tunneling support device includes a first connecting frame 1 and a second connecting frame 2. Self-locking pulleys 3 are fixedly connected to the lower front and lower rear parts of the first connecting frame 1 and the second connecting frame 2. Limiting grooves 4 are provided on the left inner wall and the right inner wall of the first connecting frame 1 and the second connecting frame 2. An adjusting device 5 is fixedly connected to the front end of the first connecting frame 1, and a protective device 6 is fixedly connected to the upper end of the adjusting device 5.
[0031] In this embodiment, the adjusting device 5 includes a rotary motor 51 and a fixed column 54. The output end of the rotary motor 51 is fixedly connected to a screw 52 through the first connecting frame 1. The outer surface of the screw 52 is threadedly connected to a first movable block 53. The outer surface of the fixed column 54 is movably sleeved with a second movable block 55. Limiting plates 56 are fixedly connected to the middle of the left and right ends of the first movable block 53 and the second movable block 55. Fixed blocks 57 are fixedly connected to the upper ends of the first movable block 53 and the second movable block 55. Electric push rods 58 are embedded inside the two fixed blocks 57. The rear end of the rotary motor 51 is fixedly connected to the front end of the first connecting frame 1. The front end and the rear end of the fixed column 54 are fixedly connected to the front inner wall and the rear inner wall of the second connecting frame 2, respectively. The rear end of the screw 52 is movably connected to the rear inner wall of the first connecting frame 1 through a bearing. The four limiting plates 56 are all set in the four limiting grooves 4.
[0032] With the above scheme: after the rotary motor 51 starts, its output end drives the screw 52 to rotate. Since the rear end of the screw 52 is movably connected to the rear inner wall of the first connecting frame 1 through a bearing, the screw 52 rotates smoothly. When the screw 52 rotates, the first movable block 53 threadedly connected to it will move according to the thread direction. Meanwhile, the limiting plates 56 at the middle of the left and right ends of the first movable block 53 and the second movable block 55 are both set in the limiting grooves 4 on the inner walls of the first connecting frame 1 and the second connecting frame 2. During the movement of the first movable block 53, the limiting plates 56 slide in the limiting grooves 4, which plays a role in limiting the movement direction of the first movable block 53 and maintaining stability. The second movable block 55 is movably sleeved on the fixed post 54. As the first movable block 53 moves, the second movable block 55 slides on the fixed post 54 to ensure that the two movable blocks move synchronously. The fixed block 57 at the upper end of the first movable block 53 and the second movable block 55 also moves accordingly. When further height adjustment is required, the electric push rod 58 embedded in the fixed block 57 is activated. The output end of the electric push rod 58 extends and retracts, driving other components connected to it to achieve height adjustment.
[0033] In this embodiment, the protective device 6 includes a connecting plate 61, with an arc-shaped plate 62 fixedly connected to both the front and rear ends of the connecting plate 61. Three springs 63 are fixedly connected to the upper end of the connecting plate 61, and a baffle 64 is fixedly connected to the end of each of the three springs 63 away from the connecting plate 61. The lower end of the connecting plate 61 is fixedly connected to the output ends of two electric push rods 58. All three springs 63 are high-strength compression springs, and the three springs 63 are evenly distributed on the upper end of the connecting plate 61. The connection between the connecting plate 61 and the arc-shaped plate 62 is reinforced with reinforcing ribs.
[0034] Through the above scheme: when faced with an impact from above, the baffle 64 first bears the impact force. The baffle 64 is connected to the connecting plate 61 by three springs 63. The impact force causes the springs 63 to compress and deform. Since the springs 63 are high-strength compression springs, they can absorb and buffer most of the impact force, protecting the structure below. At the same time, the three springs 63 are evenly distributed at the upper end of the connecting plate 61, ensuring that the buffering force is evenly distributed and improving stability. The arc-shaped plates 62 at the front and rear ends of the connecting plate 61 can also play a certain protective role when subjected to impact, dispersing some of the impact force. Furthermore, since the connection between the connecting plate 61 and the arc-shaped plate 62 is reinforced with ribs, the overall structure is more robust and can withstand greater impact force without being easily damaged. The lower end of the connecting plate 61 is fixedly connected to the output ends of two electric push rods 58. When it is necessary to adjust the height of the protective device 6, the electric push rods 58 are activated, and their output ends extend and retract, driving the connecting plate 61 to move up and down, thereby adjusting the height position of the entire protective device 6 to adapt to different working requirements.
[0035] It should be noted that this utility model is a coal mine tunneling support device. During use, the device is first moved to the coal mine tunneling working position and locked via the self-locking pulleys 3 at the lower ends of the first connecting frame 1 and the second connecting frame 2. When it is necessary to adjust the height and position of the device, the rotary motor 51 in the adjusting device 5 is activated. The output end of the rotary motor 51 drives the screw 52 to rotate. The first movable block 53 on the screw 52 begins to move under the action of the thread, while the limiting plates 56 on the first movable block 53 and the second movable block 55 slide within the limiting groove 4 to ensure stable movement. The second movable block 55 slides on the fixed column 54, causing the first movable block 53 and the second movable block 55 to move synchronously. This moves the upper fixed block 57 and the connected protective device 6 to the appropriate position. Once the device is in position, if further adjustment of the height of the protective device 6 is needed, the electric push rod 58 inside the fixed block 57 is activated. The output end of the electric push rod 58 pushes the connecting plate 61 in the protective device 6 to move up and down, achieving precise adjustment of the protective height. During coal mine tunneling, when facing dangers such as roof collapse and rockfall, the protective device 6 begins to function. First, the baffle 64 withstands the impact force. The baffle 64 is connected to the connecting plate 61 by three springs 63. The springs 63 are compressed and deformed to buffer the impact force. At the same time, the arc-shaped plates 62 at both ends of the connecting plate 61 also provide a certain degree of protection, ensuring the safety of the workers.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A coal mine tunneling support device, comprising a first connecting frame (1) and a second connecting frame (2), characterized in that: Self-locking pulleys (3) are fixedly connected to the lower front and lower rear parts of the first connecting frame (1) and the second connecting frame (2). Limiting grooves (4) are opened on the left inner wall and the right inner wall of the first connecting frame (1) and the second connecting frame (2). An adjustment device (5) is fixedly connected to the front end of the first connecting frame (1). A protective device (6) is fixedly connected to the upper end of the adjustment device (5). The adjusting device (5) includes a rotary motor (51) and a fixed column (54). The output end of the rotary motor (51) is fixedly connected to a screw (52) through the first connecting frame (1). The outer surface of the screw (52) is threadedly connected to a first movable block (53). The outer surface of the fixed column (54) is movably sleeved with a second movable block (55). Limiting plates (56) are fixedly connected to the middle of the left end and the middle of the right end of the first movable block (53) and the second movable block (55). Fixed blocks (57) are fixedly connected to the upper ends of the first movable block (53) and the second movable block (55). Electric push rods (58) are embedded in the interior of the two fixed blocks (57). The rear end of the rotary motor (51) is fixedly connected to the front end of the first connecting frame (1). The front end and the rear end of the fixed column (54) are fixedly connected to the front inner wall and the rear inner wall of the second connecting frame (2), respectively.
2. The coal mine tunneling support device according to claim 1, characterized in that: The rear end of the screw (52) is movably connected to the rear inner wall of the first connecting frame (1) via a bearing.
3. The coal mine tunneling support device according to claim 1, characterized in that: The four limiting plates (56) are all disposed in the four limiting grooves (4).
4. A coal mine tunneling support device according to claim 1, characterized in that: The protective device (6) includes a connecting plate (61), with an arc-shaped plate (62) fixedly connected to both the front and rear ends of the connecting plate (61). Three springs (63) are fixedly connected to the upper end of the connecting plate (61), and a baffle (64) is fixedly connected to the end of each of the three springs (63) away from the connecting plate (61). The lower end of the connecting plate (61) is fixedly connected to the output ends of two electric push rods (58).
5. A coal mine tunneling support device according to claim 4, characterized in that: All three springs (63) are high-strength compression springs, and the three springs (63) are evenly distributed on the upper end of the connecting plate (61).
6. A coal mine tunneling support device according to claim 4, characterized in that: The connection between the connecting plate (61) and the arc plate (62) is reinforced with reinforcing ribs.