Swing dredging mechanism for coal bunker

Abstract

A coal bunker swinging dredging mechanism comprises a cylinder, a sleeve, a rotating cylinder, a throwing chain and a driving motor, the cylinder is vertically arranged in a coal bunker, the sleeve is arranged on the cylinder in a sleeving mode, a ball bearing is arranged on the outer circumference of the sleeve, the rotating cylinder is rotationally arranged on the outer circumference of the sleeve in a sleeving mode through the ball bearing, the throwing chain is arranged on the outer circumferential wall of the rotating cylinder, and the driving motor is arranged on the rotating cylinder. An inner rack is arranged on the inner circumference of the rotary drum, an avoiding hole is formed in the position, corresponding to the inner rack, of the circumferential wall of the sleeve, an open hole is formed in the position, corresponding to the avoiding hole, of the cylinder column, a transverse plate is horizontally arranged in the avoiding hole, and one end of the transverse plate is fixedly arranged on the bottom wall of the avoiding hole. And the driving motor is vertically arranged at the position, located at the end of the inner cavity of the cylinder, of the transverse plate, and the driving motor is in transmission meshing connection with the inner rack. According to the utility model, blocked coal can be dredged when the coal bunker is blocked, so that the safety problem caused by blockage is solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine equipment technology, specifically a coal bunker swinging and unblocking mechanism. Background Technology

[0002] In recent years, coal mine safety accidents have occurred frequently. A major reason is the simplistic structure of existing coal bunkers. Over time, the accumulated coal and water inside can clump and block the bunker, preventing coal from draining smoothly even when the bottom outlet is opened. Currently, there are two main methods for dealing with this situation. One method involves manually entering the bunker from the top inlet and using cleaning tools to pry and clear the clumps of coal. This process is not only time-consuming and laborious but also poses a significant threat to the safety of the personnel, as they are highly susceptible to falling into the coal pile and being buried, leading to a major accident. The other method involves placing a small amount of explosives inside the outlet, relying on the explosive force to clear the coal. However, this method has limited effectiveness and often requires personnel to stand below the outlet and use cleaning tools for assistance. The safety of these personnel remains highly precarious, as coal can suddenly and violently erupt and fall on them, causing a major accident. Furthermore, this method can easily damage the bunker structure. Both of the above-mentioned methods for resolving coal seam blockage are major causes of coal bunker safety accidents. Therefore, it is urgent to address the series of safety problems caused by blockages in coal mine bunkers. However, there is currently no relatively effective and mature solution. Utility Model Content

[0003] To address the safety issues caused by coal bunker blockage, this invention proposes a coal bunker swinging and unblocking mechanism. This mechanism is installed inside the coal bunker and can unblock the coal when blockage occurs, thereby resolving the safety problems caused by the blockage.

[0004] The technical solution proposed by this utility model is as follows:

[0005] A coal bunker swinging and unblocking mechanism is installed inside the coal bunker, including a cylindrical column, a sleeve, a rotating drum, a swing chain, and a drive motor. The cylindrical column is vertically installed inside the coal bunker. The sleeve is fitted onto the cylindrical column, and a ball bearing is provided on the outer circumference of the sleeve. The rotating drum is rotatably fitted onto the outer circumference of the sleeve via the ball bearing. The swing chain is installed on the outer circumferential wall of the rotating drum. An internal rack is provided on the inner circumference of the rotating drum. A clearance hole is provided on the circumferential wall of the sleeve corresponding to the position of the internal rack. An opening is also provided on the cylindrical column corresponding to the position of the clearance hole. A horizontal plate is horizontally installed inside the clearance hole. One end of the horizontal plate is fixed to the bottom wall of the clearance hole, and the other end extends horizontally through the opening and into the inner cavity of the cylindrical column. The drive motor is vertically installed at the end of the horizontal plate located inside the cylindrical column, and the drive motor is connected to the internal rack via a gear located on its top.

[0006] As a preferred technical solution, a driven gear is provided at the top of the horizontal plate. The driven gear is located between the internal rack and the gear, and is engaged with the internal rack and the gear respectively.

[0007] As a preferred technical solution, the tail end of the chain is provided with a coal-pulling block.

[0008] As a preferred technical solution, the inner diameter of the rotating drum is larger than the outer diameter of the sleeve. A top cover with a central hole is integrally connected to the top circumference of the rotating drum. The inner diameter of the central hole of the top cover matches the outer diameter of the sleeve. A sealing ring is provided on the bottom circumference of the sleeve to seal and connect with the bottom end of the rotating drum.

[0009] As a preferred technical solution, a groove is formed on the inner circumferential wall of the top cover, and a retaining ring matching the groove is provided on the outer circumferential wall of the sleeve at the position corresponding to the groove. The top of the rotating cylinder is fitted into the retaining ring through the groove.

[0010] As a preferred technical solution, an embedded sealing ring is provided on the inner circumferential wall of the sleeve cavity near the top for contact sealing with the cylinder.

[0011] As a preferred technical solution, a limiting groove is formed at the top of the inner circumferential wall of the sleeve, and a limiting ring is provided on the cylinder at the position corresponding to the limiting groove, and the sleeve is fitted and limited on the limiting ring through the limiting groove.

[0012] As a preferred technical solution, the inner cavity of the cylinder is provided with a circuit tube for supplying power to the drive motor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The core structure of this application lies in the sleeve and the rotating drum. The combination of the two, powered by a drive motor and in conjunction with the chain, allows them to rotate and swing at various appropriate speeds within the coal bunker. The chain then moves and guides the coal that has clumped together within the bunker, thereby achieving the effect of preventing coal blockage. This realizes unmanned and mechanized cleaning and clearing of the coal bunker, thus solving the current safety problems caused by coal bunker blockage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged structural diagram of the marked area.

[0018] The markings in the diagram are: 1. Cylinder, 2. Sleeve, 21. Clearance hole, 22. Snap ring, 23. Sealing ring, 24. Limiting groove, 3. Rotary drum, 31. Internal rack, 4. Chain swinger, 41. Coal block pusher, 5. Drive motor, 51. Gear, 6. Ball bearing, 7. Horizontal plate, 8. Driven gear, 9. Top cover, 91. Snap groove, 10. Sealing ring, 11. Opening, 12. Limiting ring, 13. Circuit pipe. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to specific embodiments.

[0020] As shown in the figure, this embodiment discloses a coal bunker swinging and unblocking mechanism, which is installed in the inner cavity of the coal bunker. It includes a cylindrical column 1, a sleeve 2, a rotating drum 3, a chain 4, and a drive motor 5. The cylindrical column 1 is vertically installed inside the coal bunker. An electrical conduit 13 for supplying power to the drive motor 5 is installed inside the cylindrical column 1. The sleeve 2 is fitted onto the cylindrical column 1. An embedded sealing ring 23 is provided on the inner circumferential wall of the sleeve 2 near the top for sealing contact with the cylindrical column 1. A ball bearing 6 is provided on the outer circumference of the sleeve 2. The rotating drum 3 is rotatably fitted onto the outer circumference of the sleeve 2 via the ball bearing 6. The chain 4 is located on the rotating drum 3. On the outer circumferential wall, an inner rack 31 is provided on the inner circumference of the rotating cylinder 3. A clearance hole 21 is provided on the circumferential wall of the sleeve 2 at the position corresponding to the inner rack 31. An opening 11 is also provided on the cylinder 1 at the position corresponding to the clearance hole 21. A horizontal plate 7 is horizontally arranged inside the clearance hole 21. One end of the horizontal plate 7 is fixedly arranged on the bottom wall of the clearance hole 21, and the other end extends horizontally through the opening 11 and into the inner cavity of the cylinder 1. The drive motor 5 is vertically arranged at the end of the horizontal plate 7 located in the inner cavity of the cylinder 1, and the drive motor 5 is connected to the inner rack 31 through a gear 51 arranged on its top.

[0021] For sleeve 2 and rotating sleeve 3, such as Figure 2 As shown, the inner diameter of the rotating cylinder 3 is larger than the outer diameter of the sleeve 2. A top cover 9 with a central hole is integrally connected to the top circumference of the rotating cylinder 3. The inner diameter of the central hole of the top cover 9 matches the outer diameter of the sleeve 2. A sealing ring 10 is provided at the bottom circumference of the sleeve 2 to seal and connect with the bottom end of the rotating cylinder 3.

[0022] In addition, in order to fix the relative position between the sleeve 2 and the rotating cylinder 3, a groove 91 is formed on the inner circumferential wall of the top cover 9, and a retaining ring 22 matching the groove 91 is provided on the outer circumferential wall of the sleeve 2 at the position corresponding to the groove 91. The top of the rotating cylinder 3 is fitted into the retaining ring 22 through the groove 91.

[0023] Similarly, in order to fix the relative position between the cylinder 1 and the sleeve 2, a limiting groove 24 is formed around the top of the inner circumferential wall of the sleeve 2. A limiting ring 12 is provided around the cylinder 1 at the position corresponding to the limiting groove 24. The sleeve 2 is fitted and limited on the limiting ring 12 through the limiting groove 24. This structure is consistent with the fixing and limiting structure of the sleeve 2 and the rotating cylinder 3.

[0024] Furthermore, in this embodiment, in order to better achieve the transmission effect, a driven gear 8 is provided on the top of the horizontal plate 7. The driven gear 8 is located between the internal rack 31 and the gear 51, and is engaged with the internal rack 31 and the gear 51 respectively.

[0025] In this embodiment, the tail end of the chain 4 is provided with a coal-pulling block 41. The structure of the coal-pulling block 81 can be varied, such as plate structure, block structure, spherical structure, etc. It needs to have a certain weight, so it is preferable to use metal material such as steel.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been described above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any modifications or alterations made by those skilled in the art without departing from the scope of the present utility model's technical solution are equivalent embodiments. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model's technical solution are still within the scope of the present utility model's technical solution.

Claims

1. A coal bunker swinging and unblocking mechanism, disposed within the inner cavity of a coal bunker, characterized in that: The system includes a cylindrical column (1), a sleeve (2), a rotating drum (3), a chain hoist (4), and a drive motor (5). The cylindrical column (1) is vertically installed inside the coal bunker. The sleeve (2) is fitted onto the cylindrical column (1). A ball bearing (6) is provided on the outer circumference of the sleeve (2). The rotating drum (3) is rotatably fitted onto the outer circumference of the sleeve (2) via the ball bearing (6). The chain hoist (4) is located on the outer circumferential wall of the rotating drum (3). An internal rack (31) is provided on the inner circumference of the rotating drum (3). A corresponding internal rack (31) is provided on the circumferential wall of the sleeve (2). There is a clearance hole (21), and the cylindrical column (1) also has an opening (11) at the position corresponding to the clearance hole (21). A horizontal plate (7) is horizontally arranged inside the clearance hole (21). One end of the horizontal plate (7) is fixedly arranged on the bottom wall of the clearance hole (21), and the other end extends horizontally through the opening (11) and is inserted into the inner cavity of the cylindrical column (1). The drive motor (5) is vertically arranged at the end of the horizontal plate (7) located in the inner cavity of the cylindrical column (1), and the drive motor (5) is connected to the internal rack (31) through a gear (51) arranged on its top.

2. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: A driven gear (8) is provided on the top of the horizontal plate (7). The driven gear (8) is located between the internal rack (31) and the gear (51) and is engaged with the internal rack (31) and the gear (51) respectively.

3. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: The tail end of the chain (4) is provided with a coal block (41).

4. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: The inner diameter of the rotating cylinder (3) is larger than the outer diameter of the sleeve (2). A top cover (9) with a central hole is integrally connected to the top circumference of the rotating cylinder (3). The inner diameter of the central hole of the top cover (9) matches the outer diameter of the sleeve (2). A sealing ring (10) is provided on the bottom circumference of the sleeve (2) to seal and connect with the bottom end of the rotating cylinder (3).

5. The coal bunker swinging and unblocking mechanism as described in claim 4, characterized in that: A groove (91) is formed on the inner circumferential wall of the top cover (9), and a retaining ring (22) matching the groove (91) is provided on the outer circumferential wall of the sleeve (2). The top of the rotating cylinder (3) is fitted into the retaining ring (22) through the groove (91).

6. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: An embedded sealing ring (23) is provided on the inner circumferential wall of the inner cavity of the sleeve (2) near the top for contact and sealing with the cylinder (1).

7. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: A limiting groove (24) is formed around the top of the inner circumferential wall of the sleeve (2). A limiting ring (12) is provided around the circumference of the cylinder (1) at the position corresponding to the limiting groove (24). The sleeve (2) is fitted and limited on the limiting ring (12) through the limiting groove (24).

8. The coal bunker swinging and unblocking mechanism as described in claim 1, characterized in that: The inner cavity of the cylinder (1) is provided with a circuit tube (13) for supplying power to the drive motor (5).

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