Coal blocking device for a coal mining machine

Abstract

This utility model relates to the technical field of coal mining machine accessories, specifically a coal-blocking device for a coal mining machine. It includes a mounting base, with multiple hinge platforms evenly fixedly mounted on the top edge of the mounting base. A coal-blocking plate is rotatably mounted on these hinge platforms. A connecting plate is fixedly mounted at the rear end of the mounting base, and an adjustment platform is provided on the connecting plate. This utility model allows for rapid adjustment of the direction of the threaded screw by changing the rotation direction of the rotating disc, thereby changing the position of the adjustment platform on the connecting plate. Furthermore, it allows for adjustment of the position of the second rotating platform and rapid adjustment of the tilt angle of the hydraulic telescopic rod. This ensures the stability of the coal-blocking plate at different tilt angles, guarantees the coal-blocking effect, and absorbs pressure on the coal-blocking plate. Combined with rubber pads on the coal-blocking plate, it prevents damage due to excessive pressure, ensuring safe use and long-term operation of the coal-blocking plate.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mining machine accessories, specifically a coal blocking device for a coal mining machine. Background Technology

[0002] A coal mining machine is a large and complex system integrating mechanics, electrical systems, and hydraulics. It operates in harsh environments, and a malfunction can lead to the interruption of the entire coal mining operation, resulting in huge economic losses. When the coal mining machine is in operation, due to the geological conditions of the coal seam, the coal seam is prone to spalling or gouging, causing coal blocks or gangue from the coal wall to fall onto the coal mining machine body, resulting in damage to the coal mining machine, interruption of the work process, and potential injury to underground workers. Therefore, a coal blocking device is needed to ensure normal coal mining and protect underground personnel. A search revealed that patent CN213627573U discloses a space-saving coal-blocking device for coal mining machines. This device uses fastening bolts to install a pin seat on the coal mining machine, and a sliding bolt is hinged to the machine via a bolt groove. Pulling a telescopic rod lifts the hinged first horizontal support and first limiting plate, which in turn lifts the main baffle. A pin shaft fixedly installed at the bottom of the main baffle rotates within the hinged baffle pin ring. This design offers good coal-blocking performance, is easy to install and use, and has a simple structure, improving efficiency and protecting operator safety. However, it is difficult to adjust the tilt angle of the telescopic rod during use. The use of a pin shaft in conjunction with a pin ring significantly reduces the difficulty and efficiency of adjusting the telescopic rod angle. Furthermore, it cannot provide cushioning for the pressure on the baffle, which can compromise its safety when subjected to significant force.

[0003] Therefore, a coal-blocking device for a coal mining machine is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a coal blocking device for a coal mining machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A coal-blocking device for a coal mining machine includes: a mounting base, on which multiple hinge platforms are uniformly fixedly mounted at the edge of the top of the mounting base, and a coal-blocking plate is rotatably mounted on the multiple hinge platforms; a connecting plate is fixedly mounted at the rear end of the mounting base, and an adjusting platform is provided on the connecting plate; a second rotating platform is provided on the adjusting platform, and a hydraulic telescopic rod is rotatably mounted on the second rotating platform; a first rotating platform is fixedly mounted at the rear end of the coal-blocking plate, and the top end of the hydraulic telescopic rod is rotatably mounted on the first rotating platform. An adjustment component is used to adjust the position of the second rotary table on the connecting plate. The adjustment component includes a first movable groove formed at the top of the connecting plate, and first sliding grooves are formed on the two side walls of the first movable groove. A buffer assembly is provided to provide a buffering effect on the second rotary table and reduce the pressure on the coal retaining plate when it is squeezed. The buffer assembly includes a second movable slot opened at the top of the regulating table.

[0006] Preferably, the adjusting platform is fitted into the first sliding groove, and a threaded screw is rotatably installed in the first movable groove. One end of the threaded screw extends to the outside of the connecting plate and is fixedly connected to a rotating disk.

[0007] Preferably, the bottom end of the adjustment platform is provided with a threaded hole, which is adapted to the threaded screw.

[0008] Preferably, the coal retaining plate is made of a rigid, lightweight material, and a rubber pad is fixedly installed on the outer wall of the coal retaining plate.

[0009] Preferably, the second movable groove has second sliding grooves on both sides, and the second rotating table is slidably mounted on the second sliding grooves.

[0010] Preferably, a damper is fixedly installed at one end of the second movable groove near the rotating disk, and the other end of the damper is fixedly connected to the side wall of the second rotating table.

[0011] Preferably, a strong spring is fitted on the outer side of the damper.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up an adjustment component, when the user rotates the rotating disk, the rotating disk can drive the threaded screw to rotate in the first movable groove. At this time, the adjustment table can slide along the first slide groove in the first movable groove through the threaded hole. By changing the rotation direction of the rotating disk, the direction of the threaded screw can be quickly adjusted, thereby changing the position of the adjustment table on the connecting plate. Furthermore, the position of the second rotating table can be adjusted, and the tilt angle of the hydraulic telescopic rod can be quickly adjusted, thereby ensuring the stability of the coal retaining plate at different tilt angles and ensuring the coal retaining effect of the coal retaining plate.

[0013] 2. By setting up a buffer component, when the coal retaining plate is hit by a coal block, the pressure is transmitted to the second rotating platform through the hydraulic telescopic rod. At this time, the second rotating platform can slide along the second slide groove towards the rotating disk in the second movable groove. At this time, the damper and the strong spring can absorb the pressure on the second rotating platform, which can provide a buffering effect on the second rotating platform. Furthermore, it can absorb the pressure on the coal retaining plate. With the rubber pad on the coal retaining plate, it can prevent the coal retaining plate from being damaged by excessive pressure, which can ensure the safe use of the coal retaining plate and is conducive to the long-term use of the coal retaining plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of the coal retaining plate of this utility model; Figure 3 This is a side view sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the adjustment platform in an embodiment of this utility model.

[0015] In the diagram: 1. Mounting base; 2. Hinge platform; 3. Coal retaining plate; 4. Connecting plate; 5. First movable groove; 6. First rotating platform; 7. Hydraulic telescopic rod; 8. Second rotating platform; 9. Adjusting platform; 10. Threaded hole; 11. Rotary disk; 12. Threaded screw; 13. First slide groove; 14. Second movable groove; 15. Damper; 16. Strong spring; 17. Second slide groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example

[0018] Please see Figures 1 to 4 , A coal-blocking device for a coal mining machine includes: a mounting base 1, a plurality of hinged platforms 2 are uniformly fixedly mounted on the edge of the top of the mounting base 1, a coal-blocking plate 3 is rotatably mounted on the plurality of hinged platforms 2, a connecting plate 4 is fixedly mounted on the rear end of the mounting base 1, an adjusting platform 9 is provided on the connecting plate 4, a second rotating platform 8 is provided on the adjusting platform 9, a hydraulic telescopic rod 7 is rotatably mounted on the second rotating platform 8, a first rotating platform 6 is fixedly mounted on the rear end of the coal-blocking plate 3, and the top end of the hydraulic telescopic rod 7 is rotatably mounted on the first rotating platform 6; The adjustment component is used to adjust the position of the second rotary table 8 on the connecting plate 4. The adjustment component includes a first movable groove 5 opened at the top of the connecting plate 4, and first sliding grooves 13 are opened on both sides of the first movable groove 5. The buffer assembly is used to provide a buffering effect on the second rotary table 8 and reduce the pressure on the coal retaining plate 3 when it is squeezed. The buffer assembly includes a second movable groove 14 opened at the top of the regulating table 9.

[0019] As one embodiment of this utility model, please refer to Figure 3 The adjusting table 9 is locked in the first slide groove 13, and the threaded screw 12 is rotatably installed in the first movable groove 5. One end of the threaded screw 12 extends to the outside of the connecting plate 4 and is fixedly connected to the rotating disk 11.

[0020] The bottom end of the adjustment table 9 is provided with a threaded hole 10, which is adapted to the threaded screw 12.

[0021] The coal retaining plate 3 is made of rigid lightweight material, and a rubber pad is fixedly installed on the outer wall of the coal retaining plate 3.

[0022] In this embodiment, when the user rotates the rotating disk 11, the rotating disk 11 can drive the threaded screw 12 to rotate in the first movable groove 5. At this time, the adjusting table 9 can slide along the first sliding groove 13 in the first movable groove 5 through the threaded hole 10. By changing the rotation direction of the rotating disk 11, the direction of the threaded screw 12 can be adjusted, thereby changing the position of the adjusting table 9 on the connecting plate 4. Furthermore, the position of the second rotating table 8 can be adjusted, and the tilt angle of the hydraulic telescopic rod 7 can be adjusted, thereby ensuring the stability of the coal blocking plate 3 at different tilt angles and ensuring the coal blocking effect of the coal blocking plate 3.

[0023] As one embodiment of this utility model, please refer to Figure 4 The second movable groove 14 has second sliding grooves 17 on both sides, and the second rotating table 8 is slidably installed on the second sliding grooves 17.

[0024] A damper 15 is fixedly installed at one end of the second movable groove 14 near the rotating disk 11, and the other end of the damper 15 is fixedly connected to the side wall of the second rotating table 8.

[0025] A strong spring 16 is fitted on the outer side of the damper 15.

[0026] In this embodiment, when the coal retaining plate 3 is struck by a coal block, the pressure is transmitted to the second rotating platform 8 through the hydraulic telescopic rod 7. At this time, the second rotating platform 8 can slide along the second sliding groove 17 towards the rotating disk 11 within the second movable groove 14. The damper 15, together with the strong spring 16, can absorb the pressure on the second rotating platform 8, providing a buffering effect. Furthermore, it can absorb the pressure on the coal retaining plate 3. Together with the rubber pad on the coal retaining plate 3, it can prevent the coal retaining plate 3 from being damaged due to excessive pressure, ensuring the safe use of the coal retaining plate 3 and facilitating its long-term use.

[0027] Working principle: First, the mounting base 1 is fixedly installed on the coal mining machine at the position where coal needs to be blocked. Then, the hydraulic telescopic rod 7 is activated to unfold the coal blocking plate 3 on the hinged platform 2 to block coal. During use, when the operator rotates the rotating disk 11, the rotating disk 11 can drive the threaded screw 12 to rotate in the first movable groove 5. At this time, the adjusting platform 9 can slide along the first sliding groove 13 in the first movable groove 5 through the threaded hole 10. By changing the rotation direction of the rotating disk 11, the direction of the threaded screw 12 can be adjusted, thereby changing the position of the adjusting platform 9 on the connecting plate 4. Furthermore, the position of the second rotating platform 8 can be adjusted, and the tilt angle of the hydraulic telescopic rod 7 can be adjusted, thus ensuring the blocking of coal. The stability of the coal retaining plate 3 at different tilt angles ensures its coal-blocking effect. When the coal retaining plate 3 is hit by a coal block, the pressure is transmitted to the second rotating platform 8 through the hydraulic telescopic rod 7. At this time, the second rotating platform 8 can slide along the second sliding groove 17 towards the rotating disk 11 in the second movable groove 14. The damper 15, together with the strong spring 16, can absorb the pressure on the second rotating platform 8 and provide a buffering effect. Furthermore, it can absorb the pressure on the coal retaining plate 3. With the rubber pad on the coal retaining plate 3, it can prevent the coal retaining plate 3 from being damaged due to excessive pressure, ensuring the safe use of the coal retaining plate 3 and facilitating its long-term use.

[0028] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coal-blocking device for a coal mining machine, characterized in that, include: Mounting base (1), multiple hinge platforms (2) are evenly fixedly installed on the edge of the top of the mounting base (1), and a coal retaining plate (3) is rotatably installed on the multiple hinge platforms (2). A connecting plate (4) is fixedly installed at the rear end of the mounting base (1), an adjusting platform (9) is provided on the connecting plate (4), a second rotating platform (8) is provided on the adjusting platform (9), a hydraulic telescopic rod (7) is rotatably installed on the second rotating platform (8), a first rotating platform (6) is fixedly installed at the rear end of the coal retaining plate (3), and the top end of the hydraulic telescopic rod (7) is rotatably installed on the first rotating platform (6). Adjustment component, the adjustment component is used to adjust the position of the second rotary table (8) on the connecting plate (4), the adjustment component includes a first movable groove (5) opened at the top of the connecting plate (4), and first sliding grooves (13) are opened on the two side walls of the first movable groove (5). The buffer assembly is used to provide a buffering effect on the second rotary table (8) and reduce the pressure on the coal retaining plate (3) when it is squeezed. The buffer assembly includes a second movable slot (14) opened at the top of the regulating table (9).

2. The coal-blocking device for a coal mining machine according to claim 1, characterized in that: The adjustment platform (9) is fitted into the first slide groove (13), and the threaded screw (12) is rotatably installed in the first movable groove (5). One end of the threaded screw (12) extends to the outside of the connecting plate (4) and is fixedly connected to a rotating disk (11).

3. The coal-blocking device for a coal mining machine according to claim 2, characterized in that: The bottom end of the adjustment table (9) is provided with a threaded hole (10), which is adapted to the threaded screw (12).

4. The coal-blocking device for a coal mining machine according to claim 3, characterized in that: The coal retaining plate (3) is made of rigid lightweight material, and a rubber pad is fixedly installed on the outer wall of the coal retaining plate (3).

5. A coal-blocking device for a coal mining machine according to claim 1, characterized in that: The second movable groove (14) has a second sliding groove (17) on both sides, and the second rotating table (8) is slidably installed on the second sliding groove (17).

6. A coal-blocking device for a coal mining machine according to claim 5, characterized in that: A damper (15) is fixedly installed at one end of the second movable groove (14) near the rotating disk (11), and the other end of the damper (15) is fixedly connected to the side wall of the second rotating table (8).

7. A coal-blocking device for a coal mining machine according to claim 6, characterized in that: A strong spring (16) is fitted on the outside of the damper (15).

Images