A low-noise coal crusher for power plant machinery

Abstract

The utility model provides a kind of low-noise coal crusher for power plant machinery, it is related to power plant machinery technical field, including box, the top of box is provided with rotating mechanism;Rotating mechanism includes first protective shell, the bottom surface of first protective shell is fixedly connected with feed shell, the outer surface of feed shell is fixedly connected with the inner wall of box, the upper surface of feed shell is fixedly connected with first servo motor, the output end of first servo motor power is penetrated feed shell and fixedly installed with propeller, the outer surface of propeller is in contact with the inner wall of feed shell.This kind of low-noise coal crusher for power plant machinery, combined with the collaborative operation of first servo motor and feed shell, coal block is orderly guided to the inside of box, this characteristic greatly reduces the sound in the process of conveying, effectively avoids coal block direct impact box wall or crushing device, thereby greatly reduces the generation of noise reduces the generation of noise, also ensures the stability of coal block in the process of conveying.

Description

Technical Field

[0001] This utility model relates to a low-noise coal crusher, specifically a low-noise coal crusher for power plant machinery, belonging to the field of power plant machinery technology. Background Technology

[0002] A coal crusher is a machine that crushes coal lumps and grinds them into coal powder. It is an important auxiliary equipment for pulverized coal boilers. Boilers are an indispensable piece of equipment in power plants. Existing boilers generally burn coal during the combustion process. Because large pieces of coal have a small contact area with air, incomplete combustion leads to coal waste. Therefore, it is necessary to crush the coal to improve combustion efficiency, which is why coal crushers have emerged.

[0003] Chinese Patent Publication CN210675318U discloses a coal crusher that is equipped with a stirring shaft and blades. The first drive unit drives the blades to cut the material, breaking down large-volume material into smaller-volume material. The smaller-volume material enters the crusher through the discharge hole, facilitating further crushing of the material, reducing material accumulation, and improving production efficiency.

[0004] The aforementioned patented technology uses a stirring shaft and blades to crush coal. Because the coal is heavy and directly fed into the crushing chamber, significant noise is generated when the coal moves downwards and comes into contact with the chamber and the crushing device. Therefore, a low-noise coal crusher for power plant machinery is proposed here. Utility Model Content

[0005] This utility model proposes a low-noise coal crusher for power plant machinery to solve the problem of noise generated by the direct feeding of coal crushers in the prior art.

[0006] This utility model is achieved through the following technical solution: a low-noise coal crusher for power plant machinery, including a housing, with a rotating mechanism provided above the housing; The rotating mechanism includes a first protective shell, a feeding shell is fixedly connected to the bottom surface of the first protective shell, the outer surface of the feeding shell is fixedly connected to the inner wall of the box, a first servo motor is fixedly connected to the upper surface of the feeding shell, the power output end of the first servo motor passes through the feeding shell and a propeller is fixedly installed thereon, and the outer surface of the propeller is in contact with the inner wall of the feeding shell. A dispersing component is provided on the left side of the box, a conveying component is provided on the left side of the box, and a crushing component is provided on the left side of the box.

[0007] The dispersion component includes a second protective shell, the right side of which is fixedly connected to the left side of the housing. A second servo motor is installed inside the second protective shell. A first fixing block is fixedly connected to the bottom surface of the second servo motor. The right side of the first fixing block is fixedly connected to the left side of the housing. The output end of the second servo motor passes through the housing and is fixedly mounted with a drive shaft. A cam is fixedly connected to the right end of the drive shaft. A groove is formed inside the cam. A limit post is installed inside the housing. The inner wall of the groove contacts the outer surface of the limit post. A limit plate is fixedly connected to the bottom surface of the limit post. A dispersion plate is fixedly connected to the bottom surface of the limit plate. A slider is fixedly connected to the front surface of the dispersion plate. A fixing plate is slidably connected to the outer surface of the slider. Both sides of the fixing plate are fixedly connected to the inner wall of the housing.

[0008] The conveying assembly includes a third protective shell, the right side of which is fixedly connected to the left side of the housing. A third servo motor is installed inside the third protective shell. A second fixing block is fixedly connected to the bottom surface of the third servo motor. The right side of the second fixing block is fixedly connected to the left side of the housing. Two gears are rotatably connected to the inner wall of the housing. The outer surfaces of the two gears mesh with a conveyor belt. The left end of one of the gears is fixedly connected to the power output end of the third servo motor.

[0009] The crushing assembly includes a fourth protective shell, the right side of which is fixedly connected to the left side of the housing. Two crushing motors are installed inside the fourth protective shell. A third fixing block is fixedly connected to the bottom surface of each crushing motor. The right side of each third fixing block is fixedly connected to the left side of the housing. The power output end of each crushing motor passes through the housing and is fixedly installed with a crushing barrel. The right end of each crushing barrel is rotatably connected to the inner wall of the housing.

[0010] A brush is installed below the conveyor belt, with the bottom surface of the conveyor belt in contact with the outer surface of the brush, and both sides of the brush in contact with the inner wall of the box.

[0011] The outer surface of the drive shaft is rotatably connected to a limit block, and the upper surface of the limit block is fixedly connected to the inner top wall of the housing.

[0012] This utility model provides a low-noise coal crusher for power plant machinery, which has the following beneficial effects: This low-noise coal crusher for power plants moves coal blocks using a propeller. Combined with the coordinated operation of a first servo motor and a feed housing, the rotating propeller guides the coal blocks orderly into the housing. This feature greatly reduces noise during transport and effectively prevents the coal blocks from directly impacting the housing wall or crushing device, thus significantly reducing noise generation. Furthermore, the rotating mechanism design not only improves the coal transport efficiency but also ensures the stability of the coal blocks during transport.

[0013] This low-noise coal crusher for power plants features a unique design that integrates a third servo motor, a second fixed block, gears, a dispersing plate, and a conveyor belt. The dispersing plate reciprocates, evenly distributing coal lumps onto the conveyor belt, preventing coal accumulation and ensuring a more uniform distribution. The conveyor belt then smoothly transports the dispersed coal lumps to the crushing drum for crushing. This design not only improves conveying efficiency but also reduces friction and collisions during transport, further lowering noise levels. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the box structure of this utility model; Figure 2 This is a cross-sectional view of the conveyor belt structure of this utility model; Figure 3 This is a cross-sectional view of the feed shell structure of this utility model; Figure 4 This is a schematic diagram of the cam cross-sectional structure of this utility model.

[0015] Explanation of reference numerals in the attached figures 1. Box 2. Rotating mechanism; 201. First protective shell; 202. First servo motor; 203. Propeller; 204. Feed shell; 3. Dispersion component; 301. Second protective shell; 302. Second servo motor; 303. First fixing block; 304. Drive shaft; 305. Cam; 306. Limiting post; 307. Limiting plate; 308. Dispersion plate; 309. Slider; 310. Fixing plate; 311. Groove; 4. Conveying assembly; 401. Third protective housing; 402. Third servo motor; 403. Second fixing block; 404. Gear; 405. Conveyor belt; 5. Crushing assembly; 501. Fourth protective shell; 502. Crushing motor; 503. Third fixing block; 504. Crushing barrel; 6. Brush; 7. Limiting block. Detailed Implementation

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

[0017] Please see Figures 1-4 This utility model provides a low-noise coal crusher for power plant machinery, including a rotating mechanism 2 comprising a first protective shell 201. A feed shell 204 is fixedly connected to the bottom surface of the first protective shell 201. The outer surface of the feed shell 204 is fixedly connected to the inner wall of the housing 1. A first servo motor 202 is fixedly connected to the upper surface of the feed shell 204. The power output end of the first servo motor 202 passes through the feed shell 204 and is fixedly mounted with a propeller 203. The outer surface of the propeller 203 contacts the inner wall of the feed shell 204. Driven by the first servo motor 202, the propeller 203 rotates at a certain speed, thereby orderly guiding the coal blocks into the housing 1 through the feed shell 204. Since the outer surface of the feed shell 204 penetrates the housing 1, this design not only ensures the stable conveying of coal blocks, but also effectively reduces the direct collision between the coal blocks and the housing 1, thereby reducing noise generation.

[0018] Please refer to this carefully. Figure 1 and Figure 4A dispersion component 3 is provided on the left side of the housing 1. The dispersion component 3 includes a second protective shell 301. The right side of the second protective shell 301 is fixedly connected to the left side of the housing 1. A second servo motor 302 is provided inside the second protective shell 301. A first fixing block 303 is fixedly connected to the bottom surface of the second servo motor 302. The right side of the first fixing block 303 is fixedly connected to the left side of the housing 1. The power output end of the second servo motor 302 passes through the housing 1 and is fixedly mounted with a drive shaft 304. A cam 305 is fixedly connected to the right end of the drive shaft 304. A limit block 7 is rotatably connected to the outer surface of the drive shaft 304. The upper surface of the limit block 7 is fixedly connected to the inner top wall of the housing 1. This design ensures the stability and reliability of the drive shaft 304 during rotation. To ensure stable support during long-term, high-load operation, the cam 305 has a groove 311 inside, and a limit post 306 is installed inside the housing 1. The inner wall of the groove 311 is in contact with the outer surface of the limit post 306. A limit plate 307 is fixedly connected to the bottom surface of the limit post 306, and a dispersion plate 308 is fixedly connected to the bottom surface of the limit plate 307. A slider 309 is fixedly connected to the front of the dispersion plate 308, and a fixing plate 310 is slidably connected to the outer surface of the slider 309. Both sides of the fixing plate 310 are fixedly connected to the inner wall of the housing 1. This effectively disperses the coal evenly on the conveyor belt 405, preventing coal accumulation, improving conveying efficiency, reducing friction and collision of coal during conveying, and further reducing noise.

[0019] Please refer to this carefully. Figure 2 and Figure 3A conveying assembly 4 is provided on the left side of the housing 1. The conveying assembly 4 includes a third protective shell 401. The right side of the third protective shell 401 is fixedly connected to the left side of the housing 1. A third servo motor 402 is provided inside the third protective shell 401. A second fixing block 403 is fixedly connected to the bottom surface of the third servo motor 402. The right side of the second fixing block 403 is fixedly connected to the left side of the housing 1. Two gears 404 are rotatably connected to the inner wall of the housing 1. The outer surfaces of the two gears 404 mesh with a conveyor belt 405. The left end of one of the gears 404 is fixedly connected to the power output end of the third servo motor 402. After the third servo motor 402 is started, its power will drive the gear 404 fixedly connected to it to rotate. The conveyor belt 405 is connected to the surface through a common meshing connection. Therefore, when one gear 404 rotates, it will drive the other gear 404 and the conveyor belt 405 to move synchronously. This design ensures that the conveyor belt 405 can smoothly and continuously transport the dispersed coal blocks to the top of the crushing component 5, reducing the throwing height and facilitating its subsequent crushing process. A brush 6 is provided below the conveyor belt 405. The bottom surface of the conveyor belt 405 is in contact with the outer surface of the brush (6). Both sides of the brush 6 are in contact with the inner wall of the box 1. By setting the brush 6, the outer surface of the conveyor belt 405 can be cleaned, avoiding coal dust or coal block fragments from adhering to the conveyor belt 405, so as to ensure that it can fully contact the outer surface of the conveyor belt 405, thereby achieving the best cleaning effect.

[0020] Please refer to this carefully. Figure 1 A crushing assembly 5 is provided on the left side of the housing 1. The crushing assembly 5 includes a fourth protective shell 501. The right side of the fourth protective shell 501 is fixedly connected to the left side of the housing 1. Two crushing motors 502 are provided inside the fourth protective shell 501. A third fixing block 503 is fixedly connected to the bottom surface of each crushing motor 502. The right side of each third fixing block 503 is fixedly connected to the left side of the housing 1. The power output end of each crushing motor 502 passes through the housing 1 and is fixedly installed with a crushing barrel 504. The right end of each crushing barrel 504 is rotatably connected to the inner wall of the housing 1. After the crushing motor 502 is started, the crushing teeth inside the crushing barrel 504 will impact and shear the coal blocks passing below it, thereby crushing the coal blocks. Since two crushing motors 502 and two crushing barrels 504 are provided, more coal blocks can be crushed at the same time, thus improving the crushing efficiency.

[0021] In use, the operator first turns on the power, then starts the first servo motor 202. Next, coal is poured into the feed chamber 204. The output of the first servo motor 202 drives the propeller 203 to rotate. The rotation of the propeller 203 guides the coal into the chamber 1 in an orderly manner, reducing noise caused by the coal colliding with the wall of the chamber 1 during transport. Then, the second servo motor 302 is started. The output of the second servo motor 302 drives the transmission shaft 304 to rotate. The rotation of the transmission shaft 304 drives the cam 305 to rotate. Since the limiting post 306 is slidably connected to the inner wall of the groove 311, and the bottom surface of the limiting post 306 is fixedly connected to the limiting plate 307, and the bottom surface of the limiting plate 307 is fixedly connected to the dispersing plate 308, when the cam 305 rotates, it pushes the limiting post 306 to slide within the groove 311. The sliding of the limiting post 306 drives the limiting plate 307 and the dispersing plate 308 to move. The reciprocating motion of the dispersing plate 308 evenly disperses the coal blocks on the conveyor belt 405, preventing coal block accumulation. Simultaneously, the third servo motor 402 is activated, and its power output drives two gears 404 to rotate. The rotation of the two gears 404 drives the conveyor belt 405 to move, and the movement of the conveyor belt 405 smoothly transports the dispersed coal blocks to the top of the crushing barrel 504. Finally, the crushing motor 502 is activated, and its power output drives the crushing barrel 504 to rotate. The rotation of the crushing barrel 504 crushes the coal blocks, and the crushed coal blocks are discharged from the bottom of the box 1, completing the entire coal crushing process. During this process, the brush 6 on the inner wall of the box 1 cleans the outer surface of the conveyor belt 405 to prevent coal blocks from remaining on the conveyor belt 405 and affecting the next use. The limiting block 7 limits the transmission shaft 304 to ensure the stability of the transmission shaft 304 during rotation.

[0022] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-noise coal crusher for power plant machinery, comprising a housing (1), characterized in that: A rotating mechanism (2) is provided on the top of the box (1); The rotating mechanism (2) includes a first protective shell (201), a feed shell (204) is fixedly connected to the bottom surface of the first protective shell (201), the outer surface of the feed shell (204) is fixedly connected to the inner wall of the box (1), a first servo motor (202) is fixedly connected to the upper surface of the feed shell (204), the output end of the power of the first servo motor (202) passes through the feed shell (204) and a propeller (203) is fixedly installed thereon, the outer surface of the propeller (203) is in contact with the inner wall of the feed shell (204); A dispersing component (3) is provided on the left side of the box (1), a conveying component (4) is provided on the left side of the box (1), and a crushing component (5) is provided on the left side of the box (1).

2. The low-noise coal crusher for power plant machinery according to claim 1, characterized in that: The dispersion component (3) includes a second protective shell (301), the right side of which is fixedly connected to the left side of the housing (1). A second servo motor (302) is installed inside the second protective shell (301). A first fixing block (303) is fixedly connected to the bottom surface of the second servo motor (302). The right side of the first fixing block (303) is fixedly connected to the left side of the housing (1). The output end of the power of the second servo motor (302) passes through the housing (1) and is fixedly mounted with a transmission shaft (304). A cam (305) is fixedly connected to the right end of the transmission shaft (304). The cam (305) has a groove (311) inside, and the housing (1) has a limit post (306) inside. The inner wall of the groove (311) is in contact with the outer surface of the limit post (306). The bottom surface of the limit post (306) is fixedly connected to a limit plate (307). The bottom surface of the limit plate (307) is fixedly connected to a dispersion plate (308). The front surface of the dispersion plate (308) is fixedly connected to a slider (309). The outer surface of the slider (309) is slidably connected to a fixing plate (310). Both sides of the fixing plate (310) are fixedly connected to the inner wall of the housing (1).

3. A low-noise coal crusher for power plant machinery according to claim 1, characterized in that: The conveying assembly (4) includes a third protective shell (401), the right side of which is fixedly connected to the left side of the housing (1), a third servo motor (402) is provided inside the third protective shell (401), a second fixing block (403) is fixedly connected to the bottom surface of the third servo motor (402), the right side of the second fixing block (403) is fixedly connected to the left side of the housing (1), two gears (404) are rotatably connected to the inner wall of the housing (1), and the outer surfaces of the two gears (404) are meshed with a conveyor belt (405), and the left end of one of the gears (404) is fixedly connected to the power output end of the third servo motor (402).

4. A low-noise coal crusher for power plant machinery according to claim 1, characterized in that: The crushing assembly (5) includes a fourth protective shell (501). The right side of the fourth protective shell (501) is fixedly connected to the left side of the box (1). The fourth protective shell (501) is equipped with two crushing motors (502). The bottom surface of each crushing motor (502) is fixedly connected to a third fixing block (503). The right side of each third fixing block (503) is fixedly connected to the left side of the box (1). The power output end of each crushing motor (502) passes through the box (1) and is fixedly installed with a crushing barrel (504). The right end of each crushing barrel (504) is rotatably connected to the inner wall of the box (1).

5. A low-noise coal crusher for power plant machinery according to claim 3, characterized in that: A brush (6) is provided below the conveyor belt (405). The bottom surface of the conveyor belt (405) is in contact with the outer surface of the brush (6), and both sides of the brush (6) are in contact with the inner wall of the box (1).

6. A low-noise coal crusher for power plant machinery according to claim 2, characterized in that: The outer surface of the drive shaft (304) is rotatably connected to a limiting block (7), and the upper surface of the limiting block (7) is fixedly connected to the inner top wall of the housing (1).

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