Crushing anti-blocking mechanism

Abstract

The utility model discloses a crushing anti-blocking mechanism, which relates to the technical field of mining mechanical equipment and comprises a crushing box, the top of the crushing box is fixedly connected with a feed inlet, the bottom of the crushing box is fixedly connected with a plurality of supporting seats, the outer side of the crushing box is fixedly connected with a motor fixing plate, and the bottom of the motor fixing plate is fixedly connected with a control motor. The output end, extending to the inner side of the crushing box, of the control motor is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a crushing roller, the inner side of the crushing box is fixedly connected with a first grinding plate and a second grinding plate, the bottom of the inner side of the crushing box is movably connected with a screen, and the crushing box is provided with an anti-blocking assembly. By means of the cam, the check block and the reset spring, reciprocating movement of the screen can be achieved, coal briquettes falling from the crushing roller continuously move on the screen, in addition, the cam is designed to be in a convex shape, the screen can vibrate up and down while moving back and forth, and therefore blocking is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery and equipment, in particular to a crushing anti-blocking mechanism. Background Art

[0002] The coal delivered to the factory refers to the coal transported to the thermal power plant by transportation tools. As the main fuel for thermal power generation, the quality of the coal delivered to the factory has an important impact on power generation efficiency and environmental protection performance. Its main indicators include calorific value, sulfur content, volatile matter, ash content, moisture, etc. These indicators are directly related to the combustion effect and environmental protection performance of coal. For example, coal with a high calorific value can generate more heat energy and improve power generation efficiency; while coal with a low sulfur content helps to reduce pollutants such as sulfur dioxide generated during combustion and reduce the impact on the environment.

[0003] After the coal delivered to the factory arrives at the power plant, it usually needs to be crushed to meet the requirements of the boiler combustion for the size of coal particles. The crushing process is carried out by using a special coal crusher for coal delivered to the factory. This equipment can efficiently crush large pieces of coal into smaller particles. This process not only improves the combustion efficiency of coal but also helps to reduce incomplete combustion phenomena during combustion, thereby reducing pollutant emissions. The crushed coal delivered to the factory is easier to store, transport, and burn, ensuring the stable operation and efficient power generation of the thermal power plant. Therefore, the crushing of coal delivered to the factory is an indispensable part of the thermal power generation process.

[0004] However, most of the existing coal crushers for coal delivered to the factory are not easy to prevent blockage during operation. During the process of crushing materials, the crusher can crush relevant materials. However, due to the greatly different components contained in the materials, when the materials contain more moisture, impurities, or even a large amount of metal, during the normal production process of the crusher, the crusher often becomes blocked and jammed, resulting in motor tripping, burning out, etc., affecting the use performance of the crusher. Therefore, a crushing anti-blocking mechanism is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages of not being easy to prevent blockage and not being easy to clean after blockage in the prior art, and to propose a crushing anti-blocking mechanism.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A crushing anti-blocking mechanism includes a crushing box. A feed inlet is fixedly connected to the top of the crushing box. A plurality of support seats are fixedly connected to the bottom of the crushing box. A motor fixing plate is fixedly connected to the outside of the crushing box. A control motor is fixedly connected to the bottom of the motor fixing plate. The output end of the control motor extending into the inner side of the crushing box is fixedly connected to a rotating shaft. A crushing roller is fixedly connected to the outside of the rotating shaft. A first grinding plate and a second grinding plate are respectively fixedly connected to the inner side of the crushing box. A screen is movably connected to the inner bottom of the crushing box. An anti-blocking component is arranged on the crushing box. The anti-blocking component includes cams symmetrically arranged at the bottom of the crushing box.

[0008] The above technical solution further includes:

[0009] Fixed blocks and motor rotating blocks are respectively fixedly connected to one side of the motor fixing plate close to the support seats. The fixed block is fixedly connected to the control motor. The motor rotating block is rotatably connected to the output end of the control motor.

[0010] Rotating support blocks are symmetrically and fixedly connected to one side of the crushing box close to the support seats. A transmission rod is rotatably connected between the two rotating support blocks.

[0011] The output end of the control motor is fixedly connected to a driving flywheel. The end of the transmission rod close to the control motor is fixedly connected to a driven flywheel. A reduction belt is sleeved between the driven flywheel and the driving flywheel. By setting the driving flywheel and the driven flywheel, during the operation of the control motor, the screen can be vibrated to prevent blockage, without the need to additionally use transmission equipment, saving manpower and material resources.

[0012] The crushing roller is coaxial with the second grinding plate and the first grinding plate. Reset springs are symmetrically fixedly connected to one side of the screen close to the second grinding plate. The two reset springs are fixedly connected to the crushing box together.

[0013] The two cams are fixedly connected to the transmission rod. Blocks are symmetrically fixedly connected to the bottom of the two screens, and the blocks and the cams are in the same vertical direction. By setting the cams, the blocks and the reset springs, the screen can be reciprocally moved, so that the coal blocks falling from the crushing roller continuously move on the screening net, effectively avoiding blockage.

[0014] The present utility model has the following beneficial effects:

[0015] 1. In the present utility model, by setting the driving flywheel and the driven flywheel, during the operation of the control motor, the screen can be vibrated to prevent blockage, without the need to additionally use transmission equipment, saving manpower and material resources.

[0016] 2. In the present utility model, the reciprocating movement of the screen can be realized by arranging a cam, a stop block and a return spring, so that the coal blocks falling from the crushing roller continuously move on the screening net. In addition, the cam is designed to be convex, so that the screen can vibrate up and down while moving back and forth, thus effectively avoiding blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of the first overall structure of a crushing and anti-blocking mechanism proposed by the present utility model;

[0018] Figure 2 FIG. 2 is a schematic diagram of the second overall structure in the present utility model;

[0019] Figure 3 FIG. 3 is a schematic diagram of the third overall structure in the present utility model;

[0020] Figure 4 FIG. 4 is a schematic diagram of a partial structure in the present utility model.

[0021] In the figure: 1. Crushing box; 2. Feed inlet; 3. Support seat; 4. Motor fixing plate; 5. Fixed block; 6. Reduction belt; 7. Driven flywheel; 8. Transmission rod; 9. Control motor; 10. Driving flywheel; 11. Rotating support block; 12. Cam; 13. Rotating shaft; 14. Stop block; 15. Second grinding plate; 16. First grinding plate; 17. Screen; 18. Return spring; 19. Crushing roller; 20. Motor rotating block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] As Figures 1 - 3As shown in the figure, a crushing anti-blocking mechanism proposed by the present utility model includes a crushing box 1. A feed inlet 2 is fixedly connected to the top of the crushing box 1. A plurality of support seats 3 are fixedly connected to the bottom of the crushing box 1. A motor fixing plate 4 is fixedly connected to the outside of the crushing box 1. A control motor 9 is fixedly connected to the bottom of the motor fixing plate 4. The output end of the control motor 9 extending into the inner side of the crushing box 1 is fixedly connected to a rotating shaft 13. A crushing roller 19 is fixedly connected to the outside of the rotating shaft 13. A first grinding plate 16 and a second grinding plate 15 are respectively fixedly connected to the inner side of the crushing box 1. A screen 17 is movably connected to the inner bottom of the crushing box 1. An anti-blocking component is arranged on the crushing box 1. The anti-blocking component includes cams 12 symmetrically arranged at the bottom of the crushing box 1;

[0025] On one side of the motor fixing plate 4 close to the support seat 3, a fixing block 5 and a motor rotating block 20 are respectively fixedly connected. The fixing block 5 is fixedly connected to the control motor 9, and the motor rotating block 20 is rotatably connected to the output end of the control motor 9.

[0026] In this embodiment, during operation, first, turn on the control motor 9 to control the rotation of the control motor 9. Then, pour the material into the inside of the feed inlet 2. The rotation of the control motor 9 drives the rotation of the rotating shaft 13. The rotation of the rotating shaft 13 drives the rotation of the crushing roller 19. The rotation of the crushing roller 19 will impact and crush the material in the crushing box 1. The material is repeatedly ground and crushed between the crushing roller 19 and the first grinding plate 16 and the second grinding plate 15, and finally collected through the screen 17. Leakage holes are formed on the surface of the screen 17. The materials with inappropriate sizes will continue to be polished inside the crushing box 1 until they meet the standard requirements.

[0027] Embodiment Two

[0028] As Figures 1 - 3 shown, based on Embodiment One, rotating support blocks 11 are symmetrically and fixedly connected to one side of the crushing box 1 close to the support seat 3. A transmission rod 8 is rotatably connected between the two rotating support blocks 11;

[0029] The output end of the control motor 9 is fixedly connected to a driving flywheel 10. One end of the transmission rod 8 close to the control motor 9 is fixedly connected to a driven flywheel 7. A reduction belt 6 is sleeved between the driven flywheel 7 and the driving flywheel 10;

[0030] The crushing roller 19 is coaxial with the second grinding plate 15 and the first grinding plate 16. On one side of the screen 17 close to the second grinding plate 15, reset springs 18 are symmetrically and fixedly connected. The two reset springs 18 are fixedly connected to the crushing box 1 together;

[0031] The two cams 12 are fixedly connected to the transmission rod 8. On the bottom of the two screens 17, stoppers 14 are symmetrically and fixedly connected, and the stoppers 14 and the cams 12 are in the same vertical direction.

[0032] In this embodiment, while the ascending process is ongoing, the rotation of the motor 9 is controlled to drive the rotation of the active flywheel 10. The rotation of the active flywheel 10 drives the rotation of the reduction belt 6. The rotation of the reduction belt 6 drives the rotation of the driven flywheel 7. The rotation of the driven flywheel 7 drives the rotation of the transmission rod 8. The rotation of the transmission rod 8 drives the rotation of the symmetrically arranged cams 12. The rotation of the cams 12 will contact the stoppers 14 provided at the bottom of the sieve 17, causing the stoppers 14 and the cams 12 to perform circular motion together until the cams 12 rotate a certain angle and disengage from the stoppers 14. During the combined cylindrical motion, the cams 12 will drive the stoppers 14 to move in both horizontal and vertical displacements. At this time, both the horizontal and vertical positions of the stoppers 14 will change. These displacement changes drive the sieve 17 to perform horizontal screening while vibrating up and down. Therefore, effective anti-blocking and blockage clearing can be achieved.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing and anti-blocking mechanism, comprising a crushing box (1), characterized in that: The top of the crushing box (1) is fixedly connected to a feed port (2), the bottom of the crushing box (1) is fixedly connected to a plurality of support seats (3), the outer side of the crushing box (1) is fixedly connected to a motor fixing plate (4), the bottom of the motor fixing plate (4) is fixedly connected to a control motor (9), the output end of the control motor (9) extending to the inner side of the crushing box (1) is fixedly connected to a rotating shaft (13), the outer side of the rotating shaft (13) is fixedly connected to a crushing roller (19), the inner side of the crushing box (1) is respectively fixedly connected to a first grinding plate (16) and a second grinding plate (15), the inner bottom of the crushing box (1) is movably connected to a screen (17), and an anti-blocking component is provided on the crushing box (1), and the anti-blocking component includes a cam (12) symmetrically arranged at the bottom of the crushing box (1).

2. A crushing and anti-blocking mechanism according to claim 1, characterized in that: A fixed block (5) and a motor rotating block (20) are respectively fixedly connected to one side of the motor fixing plate (4) close to the support seat (3); the fixed block (5) and the control motor (9) are fixedly connected; and the motor rotating block (20) and the output end of the control motor (9) are rotationally connected.

3. A crushing and anti-blocking mechanism according to claim 1, characterized in that: A rotating support block (11) is symmetrically fixedly connected to one side of the crushing box (1) close to the support seat (3), and a transmission rod (8) is rotatably connected between the two rotating support blocks (11).

4. A crushing and anti-blocking mechanism according to claim 3, characterized in that: The output end of the control motor (9) is fixedly connected to a driving flying disc (10), and the end of the transmission rod (8) close to the control motor (9) is fixedly connected to a driven flying disc (7), and a speed reduction belt (6) is provided between the driven flying disc (7) and the driving flying disc (10).

5. A crushing and anti-blocking mechanism according to claim 1, characterized in that: The crushing roller (19) is coaxial with the second grinding plate (15) and the first grinding plate (16); a return spring (18) is symmetrically fixedly connected to one side of the screen (17) close to the second grinding plate (15); and the two return springs (18) are fixedly connected to the crushing box (1) together.

6. A crushing and anti-blocking mechanism according to claim 4, characterized in that: The two cams (12) are fixedly connected to the transmission rod (8), and the bottoms of the two screens (17) are symmetrically fixedly connected with stoppers (14), and the stoppers (14) and the cams (12) are in the same vertical direction.

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