Improved coal bunker wind shielding device

Abstract

The utility model discloses an improved coal bunker wind shielding device which is applied to a mine coal bunker, wind shielding plates are hinged to the two sides of a discharging port of the mine coal bunker and connected with a steel wire rope, the other end of the steel wire rope upwards bypasses a first pulley and then is connected with an adjustable balance weight assembly, and the adjustable balance weight assembly is connected with the coal bunker. The adjustable counterweight assembly is located between the wind shield and the first pulley, a second pulley is installed on the outer side of the adjustable counterweight assembly, the second pulley makes contact with the steel wire rope, and the adjustable counterweight assembly is connected with the outer wall of the mine coal bunker in a sliding mode. The coal bunker wind shield has the advantages that improvement is conducted on the basis of an existing coal bunker wind shield, the adjustable balance weight assembly is designed to be connected with a coal bunker in a sliding mode, a pulley structure and a limiting structure are designed, it is guaranteed that a balance weight operates stably, a steel wire rope and coal flow do not make contact with the balance weight in the operation process, and the steel wire rope is long in service life; and major safety accidents caused by falling of the counterweight are prevented.

Description

Technical fields:

[0001] This utility model relates to the technical field of windbreak equipment for coal bunkers, and in particular to an improved windbreak device for coal bunkers. Background technology:

[0002] Coal bunker combined windbreak facilities play a crucial role in coal mine production. They effectively reduce mine air leakage, which not only reduces effective airflow and causes insufficient ventilation, but also easily leads to localized gas accumulation, complicates the mine ventilation system, and reduces its stability and reliability. Coal bunker windbreak facilities prevent airflow short-circuiting and leakage, thus improving the stability of the ventilation system. In existing technologies, coal bunker windbreak facilities typically include a pair of openable and closable baffles, such as those in announcement number CN. Chinese patent 218439470U discloses a "coal flow synchronous self-closing coal leakage hole windproof device", which mainly uses steel wire rope, pulley and counterweight to realize the automatic opening and closing of the windproof plate. However, the windproof device of this coal bunker has the following obvious defects: 1. With the change of coal flow in the coal yard, the counterweight moves up and down and shakes. The counterweight is prone to collision with the outside of the coal bunker, generating noise and damaging the coal bunker. 2. Both the coal flow and the counterweight are prone to direct contact with the steel wire rope. The steel wire rope is prone to wear and breakage, causing the counterweight to fall and causing a safety accident. Utility Model Content:

[0003] The purpose of this utility model is to provide an improved coal bunker windbreak device to solve the technical problems of existing marking vehicles having difficulty in adjusting the discharge speed and requiring excessively high skill levels from construction personnel.

[0004] The present invention relates to an improved windbreak device for a coal bunker, which is applied to a coal bunker in a mine. Windbreak plates are hinged to both sides of the outlet of the coal bunker. Each windbreak plate is connected to a steel wire rope. The other end of the steel wire rope passes upwards over a first pulley and is connected to an adjustable counterweight assembly. The adjustable counterweight assembly is located between the windbreak plate and the first pulley. A second pulley is installed on the outside of the adjustable counterweight assembly, and the second pulley contacts the steel wire rope. The adjustable counterweight assembly is slidably connected to the outer wall of the coal bunker.

[0005] Furthermore, a slide rail is vertically installed on the outer wall of the coal bunker in the mine, and a slider is installed on the back of the adjustable counterweight assembly. A groove is provided on the slider, and the groove is slidably connected to the slide rail.

[0006] Furthermore, a limiting pin is screwed to the bottom of the slide rail, the limiting pin being used to limit the lower limit position of the adjustable counterweight assembly.

[0007] Furthermore, the adjustable counterweight assembly includes a counterweight box, the top of which is connected to the steel wire rope. A window is provided on the outer wall of the counterweight box. Several placement plates are installed vertically and inwardly inside the counterweight box, extending beyond the window. Counterweight blocks are placed on the placement plates.

[0008] Furthermore, the angle between the placement plate and the horizontal direction is greater than 10 degrees.

[0009] Furthermore, a protective tube is fitted onto the wire rope, and the protective tube has a C-shaped cross-section.

[0010] The beneficial effects of this utility model are as follows: This utility model has a simple structure and is an improvement on the existing coal bunker windbreak. It designs an adjustable counterweight component that slides into the coal bunker and designs a pulley structure and a limiting structure to ensure the stable operation of the counterweight. During operation, the wire rope and coal flow do not come into contact with the counterweight, the wire rope has a long service life, and it prevents the counterweight from falling and causing major safety accidents. Attached image description:

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 for Figure 1 A magnified structural diagram of part A;

[0013] Figure 3 A 3D view of the adjustable counterweight assembly;

[0014] In the diagram, the components are: 1. Coal bunker; 2. Windbreak plate; 3. Wire rope; 4. Slide rail; 5. Slide chute; 6. Counterweight box; 7. Placement plate; 8. Counterweight block; 9. First pulley; 10. Second pulley; 11. Protective pipe; 12. Limiting pin. Detailed implementation method:

[0015] like Figure 1 and Figure 3As shown, an improved windbreak device for a coal bunker is applied to a coal bunker 1 in a mine. Windbreak plates 2 are hinged to both sides of the outlet of the coal bunker 1. The windbreak plates 2 are connected to steel wire ropes 3. The other end of the steel wire rope 3 passes upwards over a first pulley 9 and connects to an adjustable counterweight assembly. The adjustable counterweight assembly is located between the windbreak plates 2 and the first pulley 9. A second pulley 10 is installed on the outside of the adjustable counterweight assembly, and the second pulley 10 contacts the steel wire rope 3. The adjustable counterweight assembly is slidably connected to the outer wall of the coal bunker 1. A slide rail 4 is vertically installed on the outer wall of the coal bunker 1. A slider is installed on the back of the adjustable counterweight assembly, and a groove 5 is formed on the slider. The groove 5 is slidably connected to the slide rail 4. To prevent the adjustable counterweight assembly from falling, a limit pin 13 is screwed to the bottom of the slide rail 4. The limit pin 13 is used to limit the lower limit position of the adjustable counterweight assembly.

[0016] like Figure 2 and Figure 3 As shown, the adjustable counterweight assembly includes a counterweight box 6, the top of which is connected to the steel wire rope 3. A window is provided on the outer wall of the counterweight box 6. Several placement plates 7 are installed vertically and inwardly inside the counterweight box 6. The placement plates 7 extend outside the window. Counterweight blocks 8 are placed on the placement plates 7. The weight of the counterweight blocks 8 can be configured according to the actual operating conditions.

[0017] To prevent counterweight 8 from slipping, such as Figure 2 As shown, the angle between the placement plate 7 and the horizontal direction is greater than 10 degrees.

[0018] To prevent the coal flow from colliding with the wire rope 3, causing wear on the wire rope 3, such as... Figure 1 As shown, a protective tube 11 is fitted onto the wire rope 3. The protective tube 11 has a C-shaped cross-section, which facilitates disassembly and installation.

[0019] In specific work, such as Figures 1 to 3 As described above, when coal falls into the coal bunker 1 of the mine, the baffle 2 opens due to the impact force of the coal flow and its own weight. When no coal flows through, the baffle 2 closes automatically due to the adjustable counterweight component, preventing air leakage from the coal bunker 1 of the mine.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An improved windbreak device for coal bunkers, characterized in that: It is applied to a coal bunker (1) in a mine. Wind baffles (2) are hinged on both sides of the discharge port of the coal bunker (1). The wind baffles (2) are connected to steel wire ropes (3). The other end of the steel wire ropes (3) passes upward around the first pulley (9) and is connected to an adjustable counterweight assembly. The adjustable counterweight assembly is located between the wind baffles (2) and the first pulley (9). A second pulley (10) is installed on the outside of the adjustable counterweight assembly. The second pulley (10) is in contact with the steel wire rope (3). The adjustable counterweight assembly is slidably connected to the outer wall of the coal bunker (1).

2. An improved coal bunker windbreak device according to claim 1, characterized in that: A slide rail (4) is vertically installed on the outer wall of the coal bunker (1) in the mine. A slider is installed on the back of the adjustable counterweight assembly. A groove (5) is provided on the slider. The groove (5) is slidably connected to the slide rail (4).

3. An improved coal bunker windbreak device according to claim 2, characterized in that: A limiting pin (13) is screwed to the bottom of the slide rail (4), and the limiting pin (13) is used to limit the lower limit position of the adjustable counterweight assembly.

4. An improved coal bunker windbreak device according to claim 1, characterized in that: The adjustable counterweight assembly includes a counterweight box (6), the top of which is connected to the wire rope (3). A window is provided on the outer wall of the counterweight box (6). Several placement plates (7) are installed in the counterweight box (6) in a vertical direction. The placement plates (7) extend outside the window. A counterweight block (8) is placed on the placement plate (7).

5. An improved coal bunker windbreak device according to claim 4, characterized in that: The angle between the placement plate (7) and the horizontal direction is greater than 10 degrees.

6. An improved coal bunker windbreak device according to claim 1, characterized in that: A protective tube (11) is fitted onto the wire rope (3), and the cross-section of the protective tube (11) is C-shaped.

Images