Mine pressure monitoring auxiliary support for underground coal mine

Abstract

The utility model discloses a mine pressure monitoring auxiliary support for an underground coal mine, which belongs to the field of coal mining and is fixed with a belt support of an underground coal mine conveyor through a steel clamping plate. The auxiliary support comprises a measuring rope, a steel clamping plate and a measuring nail. The steel clamping plate is fixedly connected with a belt support of an underground coal mine conveyor. The measuring nails are mounted on the upper side and the lower side of an excavation working face of an underground coal mine, one end of the measuring rope is fixed on the measuring nails on the upper side of the excavation working face, and the other end of the measuring rope is fixed on the measuring nails on the lower side of the excavation working face; the steel clamping plate is connected with a longitudinal reinforcing bar, and the longitudinal reinforcing bar is provided with a measuring rope groove used for guiding the position of the measuring rope. According to the utility model, the design is reasonable, the monitoring task can be completed only through single-person operation, two-person cooperation operation in the traditional method is not needed, the labor cost is effectively reduced, and the measurement error caused by multi-person operation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining, specifically a mine pressure monitoring auxiliary support for underground coal mines. Background Technology

[0002] With the continuous improvement of mechanization in coal mines, the mining depth of underground coal mines is increasing year by year, and the mining pressure on the working face is also intensifying, especially the deformation of the surrounding rock in the working face and the two roadways. The deformation of the surrounding rock may lead to the failure of the roadway support structure, equipment damage, and even endanger the safety of workers. Therefore, accurately grasping the mining pressure pattern of the working face has become an important task for safe production in coal mines.

[0003] Currently, most coal mines commonly use the traditional "cross-point method" for monitoring deformation of the surrounding rock in roadways. This method involves placing monitoring points at the midpoints of the roof and floor of the roadway and the midpoints of the two sidewalls, fixing measuring ropes to measuring pins, and monitoring the deformation of the surrounding rock by observing the tension and slack of the measuring ropes. However, the traditional "cross-point method" has many technical drawbacks and safety hazards in practical applications:

[0004] High safety risks: The measuring rope is hung on both sides of the roadway. When monitoring personnel take measurements, they need to cross the conveyor belt of the roadway to the opposite side to pull the line. This operation increases the risk of falling or collision, especially in narrow working environments with poor lighting.

[0005] High manpower requirements and low efficiency: Traditional methods typically require two people to work together, one to pull the wire and the other to take measurements. This not only consumes manpower but is also prone to large measurement errors due to improper operation or poor communication, affecting monitoring accuracy.

[0006] Monitoring points are prone to failure and data interruption: In cases of severe deformation of the surrounding rock, monitoring points may be damaged or even disappear due to rock strata movement, resulting in incomplete monitoring data and making it impossible to grasp the deformation pattern of the surrounding rock in its entirety.

[0007] Conflict with production operations: During monitoring operations, if a running conveyor belt is encountered, the belt must be stopped to complete the measurement operation, causing production interruption and making it impossible to synchronize production and monitoring. Utility Model Content

[0008] To address the issues of the traditional "cross-point method" affecting the accuracy and completeness of monitoring data in roadway surrounding rock deformation monitoring, and directly increasing the labor intensity and safety hazards of coal mine monitoring, this utility model provides an auxiliary support for mine pressure monitoring in underground coal mines. It effectively solves the problems of high safety risks, low operating efficiency, easy failure of monitoring points, and conflict between monitoring and production that exist in the traditional "cross-point method," significantly improving the safety, accuracy, and work efficiency of mine pressure monitoring.

[0009] This utility model is achieved through the following technical solution: an auxiliary support for monitoring mine pressure in underground coal mines, wherein the auxiliary support is fixed to the belt support of the underground coal mine conveyor via steel clamps; the auxiliary support includes a measuring rope, steel clamps, and measuring nails; the steel clamps are fixedly connected to the belt support of the underground coal mine conveyor; the measuring nails are installed on the upper and lower sides of the mining face in the underground coal mine, one end of the measuring rope is fixed to the measuring nail on the upper side of the mining face, and the other end of the measuring rope is fixed to the measuring nail on the lower side of the mining face; the steel clamps are connected with longitudinal reinforcing bars, and the longitudinal reinforcing bars are provided with measuring rope grooves for guiding the position of the measuring rope.

[0010] A further improvement of this utility model is that the measuring rope groove has a U-shaped structure and leads the measuring rope to the outside of the belt bracket.

[0011] A further improvement of this utility model is that the width of the steel clamp is smaller than the width of the belt bracket.

[0012] A further improvement of this utility model is that the thickness of the steel clamp is 3mm steel plate.

[0013] A further improvement of this utility model is that the steel clamp plate is provided with bolt holes, and bolts pass through the bolt holes to fix the steel clamp plate to the belt bracket.

[0014] A further improvement of this utility model is that the steel clamp and the longitudinal reinforcing bar are connected by spot welding.

[0015] A further improvement of this utility model is that the height of the longitudinal steel bar is 0.5 meters.

[0016] As can be seen from the above technical solution, the beneficial effects of this utility model are: the auxiliary support is fixed to the outside of the belt support by steel clamps, and the measuring rope is guided to the outside of the belt support by the U-shaped measuring rope groove. The monitoring personnel do not need to cross the belt to complete the measurement operation, avoiding the risk of falling and collision caused by crossing the belt, and significantly improving the safety of operation.

[0017] This utility model is reasonably designed, requiring only one person to complete the monitoring task, eliminating the need for two people to operate as in traditional methods. This effectively reduces labor costs and minimizes measurement errors caused by multiple operators, thereby improving the accuracy of the monitoring data.

[0018] The auxiliary support is securely connected to the belt support through steel clamps. The combination design of longitudinal steel bars and measuring nails ensures that the monitoring point remains stable even under severe deformation of the surrounding rock, reducing data interruption caused by damage or disappearance of the monitoring point and ensuring the continuity of monitoring data.

[0019] The auxiliary support is installed on the outside of the belt support, which will not affect the normal operation of the roadway belt. It avoids the drawback of the traditional method that requires stopping the machine for measurement, realizes the synchronization of mine pressure monitoring and production operations, and improves mine production efficiency.

[0020] The bracket uses 3mm thick steel plates, which are simple in structure, lightweight, easy to install and disassemble, and can be flexibly adjusted according to monitoring needs. It also has good durability and can be reused multiple times, reducing the cost of equipment use.

[0021] The measuring rope is guided and fixed through a U-shaped measuring rope groove, which avoids errors caused by external forces affecting the measuring rope, ensuring the accuracy and reliability of the monitoring data, and providing a scientific basis for the study of surrounding rock deformation law and mine support design.

[0022] The height and structural design of the support have been optimized to adapt to different mining faces and roadway conditions. It is widely applicable to the needs of various surrounding rock deformation monitoring in underground coal mines and has strong versatility and promotion value. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the mine pressure monitoring auxiliary support for underground coal mines, which is a specific embodiment of this utility model.

[0025] Figure 2 This is a schematic diagram of the installation structure of an auxiliary support for mine pressure monitoring in underground coal mines, according to a specific embodiment of this utility model.

[0026] Figure 3 This is a schematic diagram of the bolt hole structure of a specific embodiment of the present invention.

[0027] In the attached diagram: 1. Upper side of the mining face; 2. Lower side of the mining face; 3. Measuring rope; 4. Measuring rope groove; 5. Longitudinal reinforcing bar; 6. Steel clamp; 7. Bolt; 8. Belt support; 9. Bolt hole; 10. Measuring nail. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] like Figure 1-3 As shown, this utility model provides an auxiliary support for mine pressure monitoring in underground coal mines. The auxiliary support is fixed to the belt support 8 of the underground coal mine conveyor via steel clamps 6. The auxiliary support includes a measuring rope 3, steel clamps 6, and measuring nails 10. The steel clamps 6 are fixedly connected to the belt support of the underground coal mine conveyor. The measuring nails 10 are installed on the upper side 1 and lower side 2 of the mining face in the underground coal mine. One end of the measuring rope 3 is fixed to the measuring nail 10 on the upper side 1 of the mining face, and the other end of the measuring rope 3 is fixed to the measuring nail 10 on the lower side 2 of the mining face. The steel clamps 6 are connected with longitudinal reinforcing bars 5, and the longitudinal reinforcing bars 5 are provided with measuring rope grooves 4 for guiding the position of the measuring rope 3. In use, the auxiliary support is fixed to the belt support 8 of the underground coal mine conveyor via steel clamps 6 to ensure that the support is not displaced by external forces during the monitoring process. Measuring pins 10 are driven into the upper slab 1 and lower slab 2 of the mining face, respectively. One end of the measuring rope 3 is fixed to the measuring pin 10 on the upper slab 1 of the mining face, and the other end is fixed to the measuring pin 10 on the lower slab 2 of the mining face. The steel clamp 6 is connected to the longitudinal reinforcing bar 5, and the measuring rope groove 4 set on the longitudinal reinforcing bar 5 is used to guide the fixed position of the measuring rope 3. This achieves the stable installation of the auxiliary support in the mining face, and at the same time, the preliminary measurement structure layout of the surrounding rock deformation is completed through the measuring pins 10 and the measuring rope 3. The design of the measuring rope groove 4 effectively guides the path of the measuring rope and avoids the measuring rope from loosening or deviating. When monitoring mining data, it is only necessary to take the measuring rope 3 out of the measuring rope groove 4, straighten it for testing, and fix it on the lower slab 2 of the mining face for data measurement.

[0030] The measuring rope groove 4 has a U-shaped structure and guides the measuring rope 3 to the outside of the belt support 8. During installation, the measuring rope 3 passes through the U-shaped measuring rope groove 4 set on the longitudinal steel bar 5 and is guided to the outside of the belt support 8, keeping the measuring rope fixed and free from external interference during monitoring. The structural design of the U-shaped measuring rope groove 4 facilitates the fixing and adjustment of the measuring rope on the auxiliary support, while guiding the measuring rope to the outside of the belt support 8 reduces friction between the measuring rope and equipment or other objects, extends the service life of the measuring rope, and reduces safety hazards.

[0031] The width of the steel clamp 6 is smaller than the width of the belt support 8. During design, the width of the steel clamp 6 is controlled to be smaller than the width of the belt support 8. During installation, the steel clamp 6 is fixed to the belt support 8 with special bolts 7, ensuring it does not extend beyond the edge of the belt support. This design prevents the steel clamp 6 from exceeding the range of the belt support 8, effectively preventing the belt from operating abnormally due to an excessively wide support. Simultaneously, it ensures the stability of the auxiliary support installation.

[0032] The steel clamp plate 6 is made of 3mm thick steel plate. During its fabrication, the 3mm thick steel plate is cut and shaped, and then spot-welded to the longitudinal reinforcing bars 5. When fixing the auxiliary support, the steel clamp plate 6 is tightly fitted to the belt support 8 using bolts 7. The 3mm steel plate thickness ensures the strength of the steel clamp plate 6, enabling it to withstand external forces during mine pressure monitoring, while avoiding excessive weight that could hinder installation.

[0033] The steel clamp plate 6 is provided with bolt holes 9, through which bolts 7 pass and fix the steel clamp plate 6 to the belt support 8. The bolt holes 9 are pre-drilled during the manufacturing process of the steel clamp plate 6. During the installation of the auxiliary support, the steel clamp plate 6 is securely connected to the belt support 8 using bolts 7. The use of bolts 7 facilitates the disassembly and reuse of the support. The design of the bolt holes 9 enables rapid installation and disassembly of the auxiliary support, greatly simplifying the installation process, while simultaneously increasing the reuse rate of the support and reducing mining operation costs.

[0034] The steel clamp plate 6 is connected to the longitudinal reinforcing bars 5 by spot welding. During the fabrication of the auxiliary support, spot welding is used to connect the steel clamp plate 6 and the longitudinal reinforcing bars 5 to ensure their strength and the stability of the overall structure. Spot welding enhances the fixing strength between the steel clamp plate 6 and the longitudinal reinforcing bars 5, enabling the auxiliary support to withstand vibrations and external impacts in the complex environment of the mining face, thus extending the service life of the support.

[0035] The longitudinal reinforcing bar 5 has a height of 0.5 meters. During fabrication, the longitudinal reinforcing bar 5 is uniformly 0.5 meters high to ensure universal installation in different mining face roadways. The design of the longitudinal reinforcing bar 5 allows for a reasonable match with the measuring rope groove 4 and the steel clamp 6. The 0.5-meter height of the longitudinal reinforcing bar 5 ensures the adaptability of the auxiliary support in the mining face and provides a good guiding height for the measuring rope 3, ensuring the accuracy and stability of the monitoring data.

[0036] In summary, through the coordination of the above structures and their usage processes, the mobile and easy-to-install auxiliary support for mine pressure monitoring in underground coal mines can effectively solve the problems of low safety, low efficiency, and discontinuous data in traditional monitoring methods. It achieves the technical effects of single-person operation, accurate measurement, high safety, easy installation, and reusability, providing reliable technical support for mine pressure monitoring and support design.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary support for mine pressure monitoring in underground coal mines, characterized in that, The auxiliary support is fixed to the belt support (8) of the underground coal mine conveyor by steel clamp (6); the auxiliary support includes a measuring rope (3), steel clamp (6) [1] and measuring nail (10); the steel clamp (6) is fixedly connected to the belt support (8) of the underground coal mine conveyor; the measuring nail (10) is installed on the upper side (1) and lower side (2) of the mining face of the underground coal mine, one end of the measuring rope (3) is fixed to the measuring nail (10) on the upper side (1) of the mining face, and the other end of the measuring rope (3) is fixed to the measuring nail (10) on the lower side (2) of the mining face; the steel clamp (6) is connected with longitudinal steel bars (5), and the longitudinal steel bars (5) are provided with measuring rope grooves (4) for guiding the position of the measuring rope (3).

2. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 1, characterized in that, The measuring rope groove (4) has a U-shaped structure and leads the measuring rope (3) to the outside of the belt bracket (8).

3. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 2, characterized in that, The width of the steel clamp (6) is smaller than the width of the belt bracket (8).

4. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 3, characterized in that, The steel plate (6) is 3mm thick.

5. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 4, characterized in that, The steel clamp (6) is provided with bolt holes (9), and bolts (7) pass through the bolt holes (9) to fix the steel clamp (6) to the belt bracket (8).

6. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 1, characterized in that, The steel clamp (6) is connected to the longitudinal steel bar (5) by spot welding.

7. The auxiliary support for mine pressure monitoring in underground coal mines according to claim 6, characterized in that, The height of the longitudinal steel bar (5) is 0.5 meters.

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