Fully mechanized caving mining intelligent coal caving mechanism

Abstract

The utility model discloses an intelligent coal caving mechanism for fully-mechanized caving mining, which relates to the technical field of fully-mechanized caving mining and comprises a tail beam, a coal caving port penetrating through the bottom surface is arranged on one side of the top surface of the tail beam, a mounting groove is arranged on the bottom surface of the tail beam, a baffle is arranged in the coal caving port, the top surface of the baffle and the top surface of the tail beam have the same horizontal height, and the periphery of the baffle is abutted against the inner wall of the coal caving port; through the cooperation of the tail beam coal caving port and the baffle, the coal caving port can be conveniently opened during top coal caving, the precision and efficiency of coal caving operation are improved, the function of conveniently and rapidly caving top coal can be achieved, through the cooperation of the dredging rod and the transmission system, the coal caving port and the sealing baffle can be conveniently controlled and dredged, the working efficiency during top coal caving is improved, and the working efficiency is improved. And finally, the problems that an existing coal caving mechanism is low in coal caving control precision, prone to blockage and the like are solved, and the fully-mechanized caving mining efficiency and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of fully mechanized longwall mining technology, and in particular to an intelligent coal release mechanism for fully mechanized longwall mining. Background Technology

[0002] In fully mechanized top coal caving, the coal release mechanism is a crucial component of the mining equipment. Optimization of the coal release mechanism significantly impacts the overall mining efficiency. A typical coal release mechanism consists of a tail beam, baffle, hydraulic system, monitoring system, and operating mechanism. One existing intelligent coal release mechanism comprises a tail beam, baffle plate, coal release port, monitoring system, and control system. However, during fully mechanized top coal caving operations, the baffle plate needs to extend beyond the tail beam, which cannot effectively clear blockages in the coal release port, easily leading to blockages. Furthermore, the extended baffle plate makes it difficult to precisely control the coal release volume, resulting in low precision and efficiency in the coal release operation. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an intelligent coal release mechanism for fully mechanized longwall mining.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent coal discharge mechanism for fully mechanized longwall mining, comprising a tail beam, a coal discharge port penetrating the bottom surface is provided on one side of the top surface of the tail beam, and an installation groove is provided on the bottom surface of the tail beam. A baffle is provided inside the coal discharge port, the top surface of the baffle is at the same horizontal height as the top surface of the tail beam, and the baffle abuts against the inner wall of the coal discharge port around its perimeter.

[0005] Preferably, a first rotating rod is fixed to the other side of the baffle. The first rotating rod passes through the rear end of the baffle and is inserted into the inner wall of the tail beam. The front end of the first rotating rod passes through the inner wall of the tail beam and is inserted into the mounting groove.

[0006] Preferably, a first gear is fixedly connected to the front end of the first rotating rod in the mounting groove of the tail beam, and a second gear is provided at the lower end of the first gear. The second gear meshes with the first gear for transmission, and a first connecting rod is fixedly connected to the second gear. The first connecting rod is rotatably connected in the mounting groove, and a first worm gear is fixedly connected to the front end of the first connecting rod. A first worm is provided on the other side of the first worm gear. The first worm meshes with the first worm gear for transmission, and the first worm is rotatably connected inside the mounting groove.

[0007] Preferably, a first motor is provided at the bottom end of the first worm gear, the output shaft of the first motor is fixedly connected to the first worm gear, and a first protective shell is fixedly connected to the bottom surface of the first motor. The first protective shell is fixedly connected to the bottom surface of the tail beam. A first mounting seat is fixedly connected at equal intervals to the bottom surface of the tail beam. A telescopic rod is movably hinged to the first mounting seat. A second mounting seat is movably hinged to one side of the telescopic rod. The second mounting seat is fixedly connected to the bottom surface of the baffle.

[0008] Preferably, the baffle has multiple equidistant mounting openings on one side, each containing a drain rod. The bottom surface of the baffle has a drive groove. A second rotating rod is longitudinally fixed to the middle of each drain rod. Both ends of the second rotating rod are rotatably connected to the baffle, and the middle of the second rotating rod is placed within the drive groove. A third gear is located within the drive groove and is fixedly connected to the second rotating rod. A fourth gear is located on the other side of the third gear, meshing with the third gear. A second connecting rod is longitudinally fixed to the middle of the fourth gear and rotatably connected within the drive groove. A second worm gear is fixed to the front end of the second connecting rod, and a second worm is located on the other side of the second worm gear, meshing with the second worm gear. The second worm is vertically rotatably connected within the drive groove.

[0009] Preferably, a second motor is provided at the bottom end of the second worm, the output shaft of the second motor is fixedly connected to the bottom surface of the second worm, and a second protective shell is fixedly connected to the bottom surface of the motor, the second protective shell being fixedly connected to the bottom surface of the baffle.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the tail beam coal discharge port and the baffle, facilitates the opening of the coal discharge port when venting top coal, improves the accuracy and efficiency of coal discharge operation, and thus enables the function of convenient top coal discharge. Furthermore, through the cooperation of the unblocking rod and the transmission system, it is easy to control and unblock the coal discharge port and the sealing baffle, improves the working efficiency when venting top coal, and thus enables the function of unblocking the coal discharge port. Ultimately, it solves the problems of low coal discharge control accuracy and easy blockage in existing coal discharge mechanisms, and improves the efficiency and reliability of fully mechanized coal caving mining. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from a bottom view;

[0014] Figure 3 This is a schematic diagram of a partial cross-sectional structure in the main view of this utility model;

[0015] Figure 4 This is a schematic diagram of a partial sectional view of the structure proposed in this utility model.

[0016] Figure 5 The present utility model proposes Figure 4 Enlarged schematic diagram of the structure at part A in the middle;

[0017] Figure 6 This is a schematic diagram of the second partial cross-sectional structure in the main view of this utility model;

[0018] Figure 7 This is a schematic diagram of the second partial cross-sectional structure from the side view of the present invention;

[0019] Figure 8 The present utility model proposes Figure 7 Enlarged schematic diagram of the structure in part B.

[0020] The components in the diagram are numbered as follows: 1. Tail beam; 2. Coal discharge port; 3. Baffle; 4. First rotating rod; 5. First gear; 6. Second gear; 7. First connecting rod; 8. First worm gear; 9. First worm; 10. First motor; 11. First protective shell; 12. First mounting base; 13. Telescopic rod; 14. Second mounting base; 15. Unblocking rod; 16. Second rotating rod; 17. Third gear; 18. Fourth gear; 19. Second connecting rod; 20. Second worm gear; 21. Second worm; 22. Second motor; 23. Second protective shell. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example: See Figure 1-8This utility model discloses an intelligent coal discharge mechanism for fully mechanized longwall mining, comprising a tail beam 1. The tail beam 1 serves as the main structure of the entire coal discharge mechanism, providing a foundation for the installation and support of other components, ensuring the stability and reliability of the coal discharge mechanism. A coal discharge port 2 penetrating the bottom surface is provided on one side of the top surface of the tail beam 1. An installation groove is provided on the bottom surface of the tail beam 1. A baffle 3 is provided inside the coal discharge port 2. The top surface of the baffle 3 is at the same horizontal height as the top surface of the tail beam 1, and the baffle 3 abuts against the inner wall of the coal discharge port 2 on all four sides, facilitating the sealing of the coal discharge port 2. A first rotating rod 4 is fixedly connected to the other side of the baffle 3. The first rotating rod 4 passes through the rear end of the baffle 3 and is inserted into the inner wall of the tail beam 1. The front end of the first rotating rod 4 passes through the inner wall of the tail beam 1 and is inserted into the mounting groove. The connection between the first rotating rod 4 and the baffle 3 allows the baffle 3 to rotate flexibly at the coal discharge port 2, thereby realizing the opening and closing control of the coal discharge port 2. When coal needs to be discharged, the baffle 3 is rotated to open the coal discharge port 2; when coal does not need to be discharged, the coal discharge port 2 is closed, effectively controlling the amount of coal discharged and improving the accuracy and efficiency of coal discharge.

[0023] In this utility model, a first gear 5 is fixedly connected to the front end of the first rotating rod 4 in the mounting groove of the tail beam 1. A second gear 6 is provided at the lower end of the first gear 5. The second gear 6 meshes with the first gear 5 for transmission. A first connecting rod 7 is fixedly connected to the second gear 6. The first connecting rod 7 is rotatably connected in the mounting groove. A first worm gear 8 is fixedly connected to the front end of the first connecting rod 7. A first worm 9 is provided on the other side of the first worm gear 8. The first worm 9 meshes with the first worm gear 8 for transmission. The first worm 9 is rotatably connected inside the mounting groove. Through the gear transmission of the first gear 5 and the second gear 6, and the cooperation of the first worm gear 8 and the first worm 9, the force required to rotate the baffle 3 is reduced. The self-locking property of the first worm gear 8 and the first worm 9 prevents the baffle 3 from rotating automatically under the pressure of the coal mine, thereby improving the safety and reliability of the coal discharge mechanism. A first motor 10 is provided at the bottom end of a worm gear 9. The output shaft of the first motor 10 is fixedly connected to the first worm gear 9. A first protective shell 11 is fixedly connected to the bottom surface of the first motor 10. The first protective shell 11 is fixedly connected to the bottom surface of the tail beam 1. The first motor 10 provides power to the transmission system of the baffle 3, making the coal feeding operation more automated and convenient. The first protective shell 11 can protect the transmission system and motor from the influence of the external environment and provide a mounting foundation, extending the service life of the device. A first mounting seat 12 is fixedly connected at equal intervals to the bottom surface of the tail beam 1. A telescopic rod 13 is movably hinged to the first mounting seat 12. A second mounting seat 14 is movably hinged to one side of the telescopic rod 13. The second mounting seat 14 is fixedly connected to the bottom surface of the baffle 3. The telescopic rod 13 provides support and assistance when the baffle 3 rotates, ensuring the smooth movement of the baffle 3 and improving the stability of the coal feeding mechanism.

[0024] In this utility model, a plurality of equidistant mounting openings are longitudinally provided on one side of the baffle 3. A dredging rod 15 is installed in each mounting opening. A drive groove is provided on the bottom surface of the baffle 3. A second rotating rod 16 is longitudinally fixed to the middle of each of the dredging rods 15. Both ends of the second rotating rod 16 are rotatably connected to the baffle 3, and the middle of the second rotating rod 16 is placed in the drive groove. A third gear 17 is provided in the drive groove, and the third gear 17 is fixedly connected to the second rotating rod 16. A fourth gear 18 is provided on the other side of the third gear 17, and the fourth gear 18 meshes with the third gear 17 for transmission. A second connecting rod 19 is longitudinally fixed to the middle of the fourth gear 18, and the second connecting rod 19 is rotatably connected in the drive groove. A second worm gear 20 is fixedly connected to the front end of the second connecting rod 19. A second worm 21 is provided on the other side of the second worm gear 20, and the second worm 21 meshes with the second worm gear 20 for transmission. The second worm 21 is vertically rotatably connected inside the drive groove. The dredging rods 15 function to prevent coal from clogging the coal discharge port 2 during the coal discharge process. To ensure smooth coal discharge, the baffle 3 acts as part of the sealing mechanism when coal discharge stops. Through the gear transmission of the third gear 17 and the fourth gear 18, and the cooperation of the second worm gear 20 and the second worm 21, the rotation of the unblocking rod 15 is controlled, improving the efficiency of rotating the unblocking rod 15 and enhancing the unblocking effect. When coal discharge stops, the unblocking rod 15 self-locks, preventing it from being passively rotated due to the gravity of the coal mine, thus ensuring the sealing of the coal discharge system. A second motor 22 is located at the bottom of the second worm 21, with its output shaft fixedly connected to the bottom surface of the second worm 21. A second protective shell 23 is fixedly connected to the bottom surface of the second motor 22 and to the bottom surface of the baffle 3. The second motor 22 provides power for the rotation of the unblocking rod 15, making the operation more automated and efficient. The second protective shell 23 protects the second motor 22 and the unblocking rod 15, ensuring stable operation and providing a mounting foundation to protect the device from external environmental influences and extend its service life.

[0025] Working Principle: When using this utility model, firstly, connect all electrical equipment with wires and turn on the power. When starting the coal feeding operation, start the first motor 10, which drives the first worm 9 to rotate. The first worm 9 meshes with the first worm wheel 8, thereby driving the first worm wheel 8 to rotate. The first worm wheel 8 drives the second gear 6 to rotate through the first connecting rod 7. The second gear 6 meshes with the first gear 5, causing the first gear 5 to rotate. The first gear 5 drives the first rotating rod 4 to rotate, which in turn drives the baffle 3 to rotate around the first rotating rod 4 to open the coal feeding port 2. Under the action of the telescopic rod 13, the stability of the baffle 3 rotation is further improved. When the coal feeding amount reaches the target, stop the first motor 10. The self-locking property of the first worm wheel 8 and the first worm 9 keeps the baffle 3 stopped at the current position. At the same time, start the second motor 22. The second worm gear 21 is driven to rotate, and the second worm gear 21 meshes with the second worm wheel 20, thereby driving the second worm wheel 20 to rotate. The second worm wheel 20 drives the fourth gear 18 to rotate through the second connecting rod 19. The fourth gear 18 meshes with the third gear 17, causing the third gear 17 to rotate. The third gear 17 drives the second rotating rod 16 to rotate, which in turn drives the unblocking rod 15 to rotate, unblocking the coal discharge port 2 and preventing the coal mine from blocking the coal discharge port 2, resulting in low coal discharge efficiency. When the gangue content of the coal flow reaches the set value or when it is necessary to stop coal discharge, the second motor 22 is stopped first when the top surface of the unblocking rod 15 is flush with the top surface of the baffle 3, so that the unblocking rod 15 can act as a sealing baffle 3. Then the first motor 10 is reversed, driving the baffle 3 to rotate around the first rotating rod 4, closing the coal discharge port 2 and stopping the first motor 10. Finally, the power supply wire is disconnected.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully mechanized longwall mining intelligent coal release mechanism, comprising a tail beam (1), characterized in that: The tail beam (1) has a coal discharge port (2) that penetrates the bottom surface on one side of the top surface, and the tail beam (1) has an installation groove on the bottom surface. The coal discharge port (2) is provided with a baffle (3). The top surface of the baffle (3) is at the same horizontal height as the top surface of the tail beam (1), and the baffle (3) is in contact with the inner wall of the coal discharge port (2) around its perimeter. A first rotating rod (4) is fixedly connected to the other side of the baffle (3). The first rotating rod (4) passes through the rear end of the baffle (3) and is inserted into the inner wall of the tail beam (1). The front end of the first rotating rod (4) passes through the inner wall of the tail beam (1) and is inserted into the mounting groove. The first rotating rod (4) has a first gear (5) fixedly connected to the front end of the first gear (4) in the mounting groove of the tail beam (1). The lower end of the first gear (5) is provided with a second gear (6). The second gear (6) meshes with the first gear (5) for transmission. The second gear (6) is fixedly connected with a first connecting rod (7). The first connecting rod (7) is rotatably connected in the mounting groove. The front end of the first connecting rod (7) is fixedly connected with a first worm wheel (8). The other side of the first worm wheel (8) is provided with a first worm (9). The first worm (9) meshes with the first worm wheel (8) for transmission. The first worm (9) is rotatably connected inside the mounting groove. The first worm (9) is provided with a first motor (10) at the bottom end. The output shaft of the first motor (10) is fixedly connected to the first worm (9). The tail beam (1) is fixedly connected to a first mounting seat (12) at the other end of the bottom surface. The first mounting seat (12) is movably hinged to a telescopic rod (13). The telescopic rod (13) is movably hinged to a second mounting seat (14) on one side. The second mounting seat (14) is fixedly connected to the bottom surface of the baffle (3).

2. The intelligent coal release mechanism for fully mechanized longwall mining according to claim 1, characterized in that: The first motor (10) has a first protective shell (11) fixedly attached to its bottom surface, and the first protective shell (11) is fixedly attached to the bottom surface of the tail beam (1).

3. The intelligent coal release mechanism for fully mechanized longwall mining according to claim 1, characterized in that: The baffle (3) has multiple equidistant mounting openings on one side, and each mounting opening contains a drain rod (15). The bottom surface of the baffle (3) has a drive groove. A second rotating rod (16) is longitudinally fixed to the middle of each drain rod (15). The two ends of the second rotating rod (16) are rotatably connected to the baffle (3), and the middle of the second rotating rod (16) is placed in the drive groove. A third gear (17) is provided in the drive groove. The third gear (17) is fixed to the second rotating rod (16), and the other side of the third gear (17) is... A fourth gear (18) is provided, which meshes with a third gear (17) for transmission. A second connecting rod (19) is longitudinally fixed to the middle of the fourth gear (18). The second connecting rod (19) is rotatably connected in the drive groove. A second worm gear (20) is fixed to the front end of the second connecting rod (19). A second worm (21) is provided on the other side of the second worm gear (20). The second worm (21) meshes with the second worm gear (20) for transmission. The second worm (21) is vertically rotatably connected in the drive groove.

4. The intelligent coal release mechanism for fully mechanized longwall mining according to claim 3, characterized in that: The second worm (21) is provided with a second motor (22) at the bottom end. The output shaft of the second motor (22) is fixedly connected to the bottom surface of the second worm (21), and a second protective shell (23) is fixedly connected to the bottom surface of the second motor (22). The second protective shell (23) is fixedly connected to the bottom surface of the baffle (3).

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