Safety protection device of coal mining machine of coal mine machinery

Abstract

The utility model belongs to the technical field of coal mine machinery, and relates to a safety protection device of a coal mining machine of coal mine machinery, which comprises a fixing frame, a fixing shaft is fixedly arranged in the fixing frame, the surface of the fixing shaft is connected with a damping plate through a rotating sleeve, and a sliding block is arranged in a frame on the lower side of the fixing frame in a sliding mode. A fixing rod is fixedly connected to the side face of the sliding block, and a damping assembly is fixedly arranged on the surface of the fixing rod. The safety protection device of the coal mining machine has the beneficial effects that by arranging the rotating sleeves, the damping plates, the sliding blocks, damping springs, dampers, threaded rods, driving motors, hydraulic push rods and the like, when coal briquettes are blocked, the multiple damping plates are used, and when the damping plates in different positions fall, the damping plates in other positions cannot be influenced; and coal briquettes can be effectively and comprehensively blocked, and the protection effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machinery technology, and specifically relates to a safety protection device for a coal mining machine. Background Technology

[0002] Coal mining machines are large and complex systems that integrate mechanics, electrical systems, and hydraulic systems. They operate in harsh environments, and malfunctions can lead to the interruption of the entire coal mining operation, resulting in huge economic losses. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency, and low consumption.

[0003] The patent with publication number CN216741497U points out that existing coal mining machines do not have any protective devices. When coal blocks or stones fall from the top of the mine, they can damage the coal mining machine and sometimes even fall on the workers, causing injuries and posing a potential safety risk.

[0004] In addressing the aforementioned issues, a detachable side plate was installed on the upper part of the coal mining machine for protection. While this solved the safety problem, the side plate was a single unit, and falling coal chunks would directly press against the entire side plate, rendering the springs below the side plate ineffective when other coal chunks fell. Utility Model Content

[0005] This utility model provides a safety protection device for coal mining machinery, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device for a coal mining machine, comprising a fixed frame, a fixed shaft fixedly installed inside the fixed frame, a shock-absorbing plate connected to the surface of the fixed shaft via a rotating sleeve, a slider slidably installed inside the frame on the lower side of the fixed frame, a fixed rod fixedly connected to the side of the slider, and a shock-absorbing component fixedly installed on the surface of the fixed rod;

[0007] The top of the shock-absorbing component overlaps with the lower surface of the shock-absorbing plate. The slider has a threaded rod screwed inside. The two ends of the threaded rod are respectively fixedly connected to a rotating shaft. The side rotating shaft is set in a bearing embedded in the side of the frame. A drive motor is installed on the surface of the fixed frame. Gears are respectively provided on the surface of the drive motor and the rotating shaft in the middle position. The gears are meshed together.

[0008] As a further embodiment of this utility model: a connecting rod is fixedly provided on the inner surface of the fixing frame, a hydraulic push rod is provided on the lower surface of the connecting rod, and a connecting plate is provided at the bottom end of the hydraulic push rod.

[0009] As a further aspect of this utility model: the shock absorption assembly includes a shock absorption spring and a damper.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The safety protection device of this coal mining machine, through the arrangement of structures such as rotating sleeve, shock absorber, slider, shock absorber spring, damper, threaded rod, drive motor and hydraulic push rod, can effectively and comprehensively block coal blocks when blocking coal blocks by using multiple shock absorbers. When shock absorbers in different positions fall, they will not affect the shock absorbers in other positions, thus improving the protection effect. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a side view of the cross-sectional structure of the present invention;

[0016] Figure 4 This is a top view of the shock-absorbing plate in this utility model.

[0017] In the diagram: 1. Fixed frame; 2. Fixed shaft; 3. Rotating sleeve; 4. Shock absorber plate; 5. Slider; 6. Fixed rod; 7. Shock absorber assembly; 701. Shock absorber spring; 702. Damper; 8. Threaded rod; 9. Rotating shaft; 10. Bearing; 11. Drive motor; 12. Gear; 13. Connecting rod; 14. Hydraulic push rod; 15. Connecting plate. Detailed Implementation

[0018] 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.

[0019] Example

[0020] Please see Figure 1-4The present invention provides the following technical solution: a safety protection device for a coal mining machine, comprising a fixed frame 1, a fixed shaft 2 fixedly installed inside the fixed frame 1, a shock-absorbing plate 4 connected to the surface of the fixed shaft 2 via a rotating sleeve 3, a slider 5 slidably installed inside the frame on the lower side of the fixed frame 1, a fixed rod 6 fixedly connected to the side of the slider 5, a shock-absorbing component 7 fixedly installed on the surface of the fixed rod 6, and multiple shock-absorbing plates 4 are provided, which can buffer the coal block during the process of blocking the coal block;

[0021] The top of the shock-absorbing component 7 overlaps with the lower surface of the shock-absorbing plate 4. The slider 5 has a threaded rod 8 screwed inside. The two ends of the threaded rod 8 are respectively fixedly connected to the rotating shaft 9, and the side rotating shaft 9 is set in the bearing 10 embedded in the side of the frame. The surface of the fixing frame 1 is equipped with a drive motor 11. The surfaces of the drive motor 11 and the rotating shaft 9 in the middle position are respectively provided with gears 12. The gears 12 are meshed and connected. The threaded rods 8 in the same position are in opposite directions. When the dual-axis drive motor 11 is working, the two shock-absorbing components 7 can be brought closer or further away from each other, which is beneficial for adjusting the position of the shock-absorbing plate 4.

[0022] Specifically, a connecting rod 13 is fixedly installed on the inner surface of the fixed frame 1, and a hydraulic push rod 14 is installed on the lower surface of the connecting rod 13. A connecting plate 15 is installed at the bottom end of the hydraulic push rod 14. The hydraulic push rod 14 is designed to facilitate the adjustment of the distance between the shock absorber 4 and the coal mining machine. When not in use, the distance can be reduced for storage. The connecting plate 15 is designed to facilitate the connection of the device to the coal mining machine.

[0023] Specifically, the shock absorption assembly 7 includes a shock absorption spring 701 and a damper 702. The shock absorption spring 701 and the damper 702 improve the buffering effect of the shock absorption plate 4 and can prevent coal blocks from breaking when they hit the shock absorption plate 4 to a certain extent.

[0024] The working principle of this utility model is as follows:

[0025] In use, the device is fixed to the upper end of the coal mining machine via the connecting plate 15. The drive motor 11 is controlled by the control system to work. The output shaft of the drive motor 11 rotates, and the rotating shaft 9 drives the threaded rod 8 to rotate via the gear 12. This allows the slider 5 to move, and the position of the damping plate 4 can be adjusted when the two damping components 7 move closer or further apart. When a coal block falls onto the surface of the damping plate 4, the damping components 7 installed below the damping plate 4 can buffer the damping plate 4.

[0026] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A safety protection device for a coal mining machine, comprising a fixing frame (1), characterized in that: A fixed shaft (2) is fixedly installed inside the fixed frame (1). A damping plate (4) is connected to the surface of the fixed shaft (2) through a rotating sleeve (3). A slider (5) is slidably installed inside the frame on the lower side of the fixed frame (1). A fixed rod (6) is fixedly connected to the side of the slider (5). A damping component (7) is fixedly installed on the surface of the fixed rod (6). The top of the shock-absorbing component (7) overlaps with the lower surface of the shock-absorbing plate (4). The slider (5) has a threaded rod (8) screwed inside. The two ends of the threaded rod (8) are respectively fixedly connected to the rotating shaft (9). The side rotating shaft (9) is set in the bearing (10) embedded on the side of the frame. The surface of the fixed frame (1) is equipped with a drive motor (11). The surfaces of the drive motor (11) and the rotating shaft (9) in the middle position are respectively provided with gears (12). The gears (12) are meshed and connected.

2. The safety protection device for a coal mining machine according to claim 1, characterized in that: A connecting rod (13) is fixedly provided on the inner surface of the fixed frame (1), a hydraulic push rod (14) is provided on the lower surface of the connecting rod (13), and a connecting plate (15) is provided at the bottom end of the hydraulic push rod (14).

3. The safety protection device for a coal mining machine according to claim 1, characterized in that: The damping assembly (7) includes a damping spring (701) and a damper (702).

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