Aggregate crusher with screening function

Abstract

The present application belongs to the technical field of aggregate crushing equipment, and particularly relates to an aggregate crusher with a screening function, which comprises a crushing chamber, a crushing mechanism arranged on the crushing chamber, a screening chamber connected to the crushing chamber, a screening mechanism corresponding to the crushing mechanism arranged in the screening chamber, a horizontal filter screen fixed to the screening chamber, a fan-shaped filter screen connected to the horizontal filter screen, a separation assembly corresponding to the fan-shaped filter screen arranged on the screening chamber, a discharge port corresponding to the separation assembly connected to the screening chamber, a protection structure arranged on the screening chamber for protecting the horizontal filter screen, and a discharging structure corresponding to the horizontal filter screen arranged in the screening chamber. The present application effectively solves the problem that the screening function of the existing aggregate crusher is prone to blockage during use.

Description

Technical Field

[0001] This invention belongs to the technical field of aggregate crushing equipment, specifically relating to an aggregate crusher with screening function. Background Technology

[0002] Aggregates, as the main raw material in concrete, play a skeletal and supporting role in buildings. During mixing, cement is stirred with water to form a thin paste. Without aggregates, it cannot be formed and will become unusable. Therefore, aggregates are a very important raw material in construction. During the production of aggregates, appropriate aggregate crushers are often used to crush large-sized solid raw materials into aggregates of the required size.

[0003] Existing aggregate crushers, in order to prevent aggregates of unqualified particle size from falling onto the conveyor belt along with qualified aggregates and affecting the quality of the finished aggregate, incorporate a screening function during crushing to separate the aggregates, ensuring that qualified aggregates fall onto the conveyor belt. However, in actual use, large aggregate particles easily clog the filter screen, reducing its filtering function. This necessitates cleaning the filter screen by maintenance personnel for continued use, thus affecting the normal operation of the aggregate crusher. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides an aggregate crusher with screening function, which effectively solves the problem that the screening function of the existing aggregate crusher is prone to clogging during use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an aggregate crusher with screening function, comprising a crushing chamber, on which a crushing mechanism is provided; a screening chamber is connected to the crushing chamber, and a screening mechanism corresponding to the crushing mechanism is provided in the screening chamber; the screening mechanism includes a horizontal filter screen fixedly connected to the screening chamber, and a fan-shaped filter screen is connected to the horizontal filter screen; a separation component corresponding to the fan-shaped filter screen is provided on the screening chamber, and a discharge port corresponding to the separation component is connected to the screening chamber; a protective structure for protecting the horizontal filter screen is provided on the screening chamber, and a feeding structure corresponding to the horizontal filter screen is also provided in the screening chamber; the feeding structure includes an active pusher that moves linearly along the direction of approaching and moving away from the fan-shaped filter screen, and multiple driven pushers that move synchronously with the active pusher are also provided above the horizontal filter screen; the screening chamber is also provided with an equidistant component that drives the active pusher and the driven pushers to move synchronously and at equal intervals.

[0006] Furthermore, the equidistant component includes a feeding motor fixedly connected to the screening chamber, the output end of the feeding motor is connected to a screw, and the active pusher is screwed to the screw; a guide rod is fixedly connected to the screening chamber, and the active pusher and the driven pusher are slidably connected to the guide rod.

[0007] Furthermore, an active rod is rotatably connected to the active pusher frame, and an intermediate rod is rotatably connected to the driven pusher frame. The center of the intermediate rod is rotatably connected to the driven pusher frame. The active rod is rotatably connected to the adjacent intermediate rod, and the adjacent intermediate rods are rotatably connected to each other. A driven rod is rotatably connected to the screening chamber, and the driven rod is rotatably connected to the adjacent intermediate rod.

[0008] Furthermore, both the active pusher and the driven pusher include scrapers arranged at an incline. A reverse pusher is fixedly connected to one end of the scraper near the fan-shaped filter screen. Both the scraper and the reverse pusher are slidably connected to the guide rod. A threaded cylinder that is screwed to the screw is fixedly connected to the scraper of the active pusher. Guide plates are evenly distributed on the scraper.

[0009] Furthermore, the separation assembly includes a discharge motor fixedly connected to the screening chamber, and a separation shaft fixedly connected to the output end of the discharge motor. Multiple filter plates corresponding to the fan-shaped filter screen are evenly distributed along the circumference of the separation shaft.

[0010] Furthermore, the protective structure includes a plurality of active plates evenly distributed along the screening chamber, each of the active plates being rotatably connected to the screening chamber; each of the active plates is rotatably connected to a traction rod, the other end of the traction rod being rotatably connected to a driven plate, the end of the driven plate near the traction rod being located below the active plate, and the other end of the driven plate being rotatably connected to the middle of the adjacent active plate.

[0011] Furthermore, each of the aforementioned active plates is coaxially fixed with a drive rod, and a synchronizing rod is rotatably connected to the drive rod; all of the aforementioned drive rods are rotatably connected to the synchronizing rod.

[0012] Furthermore, a protective motor is fixedly connected to the screening chamber, and a crank is fixedly connected to the output end of the protective motor; the other end of the crank is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the middle of the synchronizing rod.

[0013] Furthermore, the crushing mechanism includes a pair of crushing shafts rotatably connected to the crushing chamber. A plurality of crushing discs are evenly distributed along the axial direction on the pair of crushing shafts. Chains are evenly distributed along the circumference on each of the plurality of crushing discs, and crushing hammers are provided on the chains. A support frame is fixedly connected to the crushing chamber. A pair of crushing motors, each corresponding to a pair of crushing shafts, are fixedly connected to the support frame. Both the pair of crushing motors and the pair of crushing shafts are connected to pulleys. The pulleys of the crushing motors are provided with belts that cooperate with the pulleys of the crushing shafts.

[0014] Furthermore, the crushing chamber is provided with a feeding port, and inspection ports are provided on both sides of the crushing chamber; an inspection plate corresponding to the inspection port is rotatably connected to the crushing chamber, and a connecting bolt screwed to the crushing chamber is rotatably connected to the inspection plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In use, this invention, through the arrangement of a horizontal filter screen, a fan-shaped filter screen, a separation component, and a feeding structure, enables the horizontal filter screen to screen aggregates. The equidistant component drives the active and driven pusher frames to move synchronously and at equal intervals. Under the action of the active rod, intermediate rod, and driven rod, the active pusher frame's movement distance is maximized, while the distance between the multiple driven pusher frames and the active pusher frame decreases from near to far. The scrapers of the active and driven pusher frames push the aggregates, causing them to fall onto the horizontal filter screen for filtration via the scrapers and reverse pusher plate. The reverse pusher plate pushes large aggregate particles in the opposite direction, causing them to move towards the fan-shaped filter screen. This allows the large aggregate particles to fall into the fan-shaped filter screen, enabling this invention not only to effectively screen but also to separate large aggregate particles, thus improving the screening effect.

[0017] 2. In use, during the process of aggregate falling into the horizontal filter screen, the active plate, traction rod, and driven plate are arranged so that when the active plate swings, it drives the driven plate to swing back and forth through the traction rod. In addition, one end of the driven plate is located below the active plate, so that the aggregate falls onto the active plate or driven plate under the action of impact force. Then, through the up and down swing of the active plate and driven plate, the aggregate falls onto the horizontal filter screen for filtration. This can effectively prevent the aggregate from falling onto the horizontal filter screen under the action of impact force and causing damage to the horizontal filter screen, thereby improving the service life of the horizontal filter screen. Attached Figure Description

[0018] Figure 1 This is the first isometric view of the present invention;

[0019] Figure 2 This is the second isometric view of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the grinding chamber in this invention;

[0021] Figure 4 This is a schematic diagram showing the coordinated state of the pulley, crushing disc, chain, crushing hammer, and other structures in this invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of the screening chamber in this invention;

[0023] Figure 6 This is a front view of the internal structure of the screening chamber in this invention;

[0024] Figure 7 This is a schematic diagram showing the assembly state of the horizontal filter screen, fan-shaped filter screen, filter plate, and other structures in this invention.

[0025] Figure 8 This is a schematic diagram of the feeding structure in this invention;

[0026] Figure 9 This is a schematic diagram showing the cooperative state of the scraper, reverse plate, and other structures in this invention;

[0027] Figure 10 This is a schematic diagram of the protective structure in this invention;

[0028] Figure 11 In this invention Figure 10 Enlarged view of region A in the middle;

[0029] Figure 12 This is a schematic diagram showing the cooperative state of the active plate, traction plate, driven plate, and other structures in this invention.

[0030] In the diagram: 1. Crushing chamber, 2. Feeding port, 3. Inspection plate, 4. Screening chamber, 5. Protective motor, 6. Feeding motor, 7. Discharge motor, 8. Discharge port, 9. Pulley, 10. Crushing disc, 11. Crushing hammer, 12. Chain, 13. Horizontal filter screen, 14. Fan-shaped filter screen, 15. Filter plate, 16. Scraper, 17. Guide rod, 18. Screw, 19. Driving plate, 20. Driven plate, 21. Synchronizing rod, 22. Traction rod, 23. Drive rod, 24. Connecting rod, 25. Inclined block, 26. Driven rod, 27. Intermediate rod, 28. Driving rod, 29. Guide plate, 30. Reverse push plate, 31. Crank. Detailed Implementation

[0031] An aggregate crusher with screening function, such as Figure 1-12 As shown, the system includes a crushing chamber 1, on which a crushing mechanism is provided; a screening chamber 4 is connected to the crushing chamber 1, and a screening mechanism corresponding to the crushing mechanism is provided in the screening chamber 4; the screening mechanism includes a horizontal filter screen 13 fixedly connected to the screening chamber 4, a fan-shaped filter screen 14 connected to the horizontal filter screen 13, and an inclined block 25 fixedly connected to one end of the horizontal filter screen 13 near the fan-shaped filter screen 14; a separation component corresponding to the fan-shaped filter screen 14 is provided on the screening chamber 4, and a discharge port 8 corresponding to the separation component is connected on the screening chamber 4; a protective structure for protecting the horizontal filter screen 13 is provided on the screening chamber 4, and a feeding structure corresponding to the horizontal filter screen 13 is also provided in the screening chamber 4; the feeding structure includes an active pusher that moves linearly along the direction of approaching and moving away from the fan-shaped filter screen 14, and multiple driven pushers that move synchronously with the active pusher above the horizontal filter screen 13; and an equidistant component that drives the active pusher and the driven pushers to move synchronously and at equal intervals on the screening chamber 4.

[0032] In use, the present invention crushes large-sized solid raw materials in the crushing chamber 1 through a crushing mechanism. The crushed aggregate falls onto a horizontal filter screen 13 through a protective structure. The horizontal filter screen 13 filters the aggregate, allowing qualified aggregate to fall onto a conveyor belt for transport. In addition, during the process of the aggregate falling onto the horizontal filter screen 13, the protective structure protects the horizontal filter screen 13, preventing the aggregate from falling onto the horizontal filter screen 13 under impact, thereby improving the service life of the horizontal filter screen 13.

[0033] In addition, when the horizontal filter screen 13 screens the aggregate, the active pusher and the driven pusher move synchronously and at equal intervals through the equidistant component, so that the distance between the active pusher and the adjacent driven pusher, and the distance between the adjacent driven pushers, are always equal. The active pusher and the driven pusher work together to push the aggregate on the horizontal filter screen 13, so that the horizontal filter screen 13 can screen the aggregate. The unqualified aggregate is pushed to the fan-shaped filter screen 14 by the active pusher and the driven pusher. After the fan-shaped filter screen 14 works with the separation component to screen the aggregate again, the unqualified aggregate is discharged through the discharge port 8, and the qualified aggregate falls onto the conveyor belt. This can effectively avoid the large particles of aggregate from clogging the filter screen and improve the stability of the operation of this application.

[0034] Furthermore, such as Figure 8 As shown, the equidistant assembly includes a feeding motor 6 fixedly connected to the screening chamber 4, with a screw 18 connected to the output end of the feeding motor 6, and an active pusher frame screwed to the screw 18; a guide rod 17 is fixedly connected inside the screening chamber 4, and both the active pusher frame and the driven pusher frame are slidably connected to the guide rod 17; an active rod 28 is rotatably connected to the active pusher frame, and an intermediate rod 27 is rotatably connected to the driven pusher frame, with the center of the intermediate rod 27 rotatably connected to the driven pusher frame, the active rod 28 rotatably connected to the adjacent intermediate rod 27, and the adjacent intermediate rods 27 rotatably connected to each other; a driven rod 26 is rotatably connected inside the screening chamber 4, and the driven rod 26 is rotatably connected to the adjacent intermediate rod 27.

[0035] When the equidistant component is in use, the feeding motor 6 drives the screw 18 to rotate, and the screw 18 drives the active pusher to slide along the guide rod 17. The active pusher drives the active rod 28 to rotate, the active rod 28 drives the intermediate rod 27 to rotate, and the intermediate rod 27 drives the driven rod 26 to rotate. Under the action of the guide rod 17, the intermediate rod 27 drives the driven pusher to slide along the guide rod 17, realizing synchronous and equidistant movement of the active pusher and the driven pusher. Under the action of the active rod 28, the intermediate rod 27, and the driven rod 26, the active pusher... The frame has the largest movement distance, and the distance between the multiple driven pusher frames and the active pusher frame increases from near to far, with their movement distance decreasing from large to small. This allows the active pusher frame and the driven pusher frames close to it to push a larger amount of material, mainly working with the horizontal filter screen 13 to screen the aggregate. The driven pusher frames close to the fan-shaped filter screen 14 mainly push large aggregate particles, causing them to fall into the fan-shaped filter screen 14. This allows the present application to not only effectively screen but also separate large aggregate particles, improving the screening effect of the present application.

[0036] Furthermore, such as Figure 9 As shown, both the active and passive pusher frames include scrapers 16 arranged at an incline. A reverse pusher 30 is fixedly connected to one end of the scraper 16 near the fan-shaped filter screen 14. Both the scraper 16 and the reverse pusher 30 are slidably connected to the guide rod 17. A threaded cylinder that is screwed to the screw rod 18 is fixedly connected to the scraper 16 of the active pusher frame. Guide plates 29 are evenly distributed on the scraper 16.

[0037] When in use, the active and passive pusher racks push the aggregate through the scraper 16, causing it to fall onto the horizontal filter screen 13 for filtration via the scraper 16 and the reverse pusher 30. The reverse pusher 30 pushes large aggregate particles in the opposite direction, causing them to move towards the fan-shaped filter screen 14. The guide plate 29 ensures that the aggregate is distributed more evenly on the horizontal filter screen 13, thereby improving the filtration capacity of the horizontal filter screen 13.

[0038] Furthermore, such as Figure 7 As shown, the separation assembly includes a discharge motor 7 fixedly connected to the screening chamber 4. The output end of the discharge motor 7 is fixedly connected to a separation shaft. Multiple filter plates 15 corresponding to the fan-shaped filter screen 14 are evenly distributed along the circumference of the separation shaft. The discharge motor 7 drives the separation shaft to rotate, and the separation shaft drives the aggregate to move within the fan-shaped filter screen 14 for screening through the filter plates 15. It also drives large aggregate particles to the discharge port 8 for discharge, thereby improving the convenience of this application.

[0039] Furthermore, such as Figure 10-12As shown, the protective structure includes several active plates 19 evenly distributed along the screening chamber 4, each of which is rotatably connected to the screening chamber 4; each of the active plates 19 is rotatably connected to a traction rod 22, the other end of which is rotatably connected to a driven plate 20, one end of which is located below the active plate 19 near the traction rod 22, and the other end of which is rotatably connected to the middle of an adjacent active plate 19; each of the active plates 19 is coaxially fixed to a drive rod 23, and a synchronizing rod 21 is rotatably connected to the drive rod 23, and the drive rod 23 is rotatably connected to the synchronizing rod 21; a protective motor 5 is fixedly connected to the screening chamber 4, and a crank 31 is fixedly connected to the output end of the protective motor 5; the other end of the crank 31 is rotatably connected to a connecting rod 24, and the other end of the connecting rod 24 is rotatably connected to the middle of the synchronizing rod 21.

[0040] When the protective structure is in use, the protective motor 5 is started, which drives the crank 31 to rotate. The crank 31 drives the synchronous rod 21 to move through the connecting rod 24. The synchronous rod 21 drives several drive rods 23 to rotate synchronously along the screening chamber 4. The drive rods 23 drive the active plate 19 to swing. The active plate 19 drives the traction rod 22 to move. The traction rod 22 drives the driven plate 20 to swing along the adjacent active plate 19. In addition, one end of the driven plate 20 is located below the active plate 19, so that the aggregate falls onto the active plate 19 or the driven plate 20 under the action of impact force. Then, through the up and down swing of the active plate 19 and the driven plate 20, the aggregate falls onto the horizontal filter screen 13 for filtration. This can effectively prevent the aggregate from falling onto the horizontal filter screen 13 under the action of impact force and causing damage to the horizontal filter screen 13, thereby improving the service life of the horizontal filter screen 13.

[0041] Furthermore, such as Figure 3 and Figure 4 As shown, the crushing mechanism includes a pair of crushing shafts rotatably connected to the crushing chamber 1. A plurality of crushing discs 10 are evenly distributed along the axial direction on the pair of crushing shafts. Chains 12 are evenly distributed along the circumference on the plurality of crushing discs 10. Crushing hammers 11 are provided on the chains 12. A support frame (not shown in the figure) is fixedly connected to the crushing chamber 1. A pair of crushing motors (not shown in the figure) corresponding to the pair of crushing shafts are fixedly connected to the support frame. The pair of crushing motors and the pair of crushing shafts are all connected to pulleys 9. The pulleys 9 of the crushing motors are provided with belts (not shown in the figure) that cooperate with the pulleys 9 of the crushing shafts.

[0042] When the crushing structure is in use, the crushing motor starts, and the crushing shaft rotates under the action of the belt and pulley 9. The crushing shaft drives the crushing disc 10 to rotate. The crushing disc 10 cooperates with the crushing hammer 11 through the chain 12 to crush large-sized solid raw materials. The crushed aggregate falls onto the horizontal filter screen 13 through the protective structure. The horizontal filter screen 13 filters the aggregate, and the qualified aggregate falls onto the conveyor belt for transportation.

[0043] Furthermore, the crushing chamber 1 is provided with a feeding port 2, and inspection ports are also provided on both sides of the crushing chamber 1; large-sized solid raw materials are added into the crushing chamber 1 through the feeding port 2, and the parts inside the crushing chamber 1 are repaired through the inspection ports, thereby improving the service life of this application; an inspection plate 3 corresponding to the inspection port is rotatably connected to the crushing chamber 1, and a connecting bolt screwed to the crushing chamber 1 is rotatably connected to the inspection plate 3; the inspection port is sealed by the inspection plate 3, and when sealing, the inspection plate 3 is connected to the crushing chamber 1 by the connecting bolt, thereby improving the stability of the inspection plate 3.

[0044] The working process of this invention is as follows:

[0045] In use, large-sized solid raw materials are added into the crushing chamber 1 through the feeding port 2; the crushing motor is started, and the crushing shaft is rotated under the action of the belt and pulley 9; the crushing shaft drives the crushing disc 10 to rotate, and the crushing disc 10 is connected to the crushing hammer 11 through the chain 12 to crush the large-sized solid raw materials; the crushed aggregate falls onto the horizontal filter screen 13 through the protective structure, and the aggregate is filtered by the horizontal filter screen 13 so that qualified aggregate falls onto the conveyor belt for transportation.

[0046] Additionally, during the process of aggregate falling into the horizontal filter screen 13, the protective motor 5 is activated. The protective motor 5 drives the crank 31 to rotate, and the crank 31 drives the synchronous rod 21 to move through the connecting rod 24. The synchronous rod 21 drives several drive rods 23 to rotate synchronously along the screening chamber 4, and the drive rods 23 drive the active plate 19 to swing. The active plate 19 drives the traction rod 22 to move, and the traction rod 22 drives the driven plate 20 to swing along the adjacent active plate 19. In addition, one end of the driven plate 20 is located below the active plate 19, so that the aggregate falls onto the active plate 19 or the driven plate 20 under the action of impact force, and then, through the up and down swing of the active plate 19 and the driven plate 20, the aggregate falls onto the horizontal filter screen 13 for filtration.

[0047] When the horizontal filter screen 13 screens the aggregate, the feeding motor 6 is started. The feeding motor 6 drives the screw 18 to rotate, and the screw 18 drives the active pusher frame to slide along the guide rod 17. The active pusher frame drives the active rod 28 to rotate, the active rod 28 drives the intermediate rod 27 to rotate, and the intermediate rod 27 drives the driven rod 26 to rotate. Under the action of the guide rod 17, the intermediate rod 27 drives the driven pusher frame to slide along the guide rod 17, realizing synchronous and equidistant movement of the active pusher frame and the driven pusher frame; in the main Under the action of the moving rod 28, the intermediate rod 27, and the driven rod 26, the movement distance of the active pusher is maximized. The distance between the multiple driven pushers and the active pusher increases from near to far, and their movement distance decreases from large to small. This results in the active pusher and the driven pushers close to it pushing a large amount of material, mainly working with the horizontal filter screen 13 to screen the aggregate. The driven pushers close to the fan-shaped filter screen 14 mainly push large aggregate particles, causing them to fall into the fan-shaped filter screen 14.

[0048] Specifically, the active pusher and the driven pusher push the aggregate through the scraper 16, so that the aggregate falls onto the horizontal filter screen 13 for filtration through the scraper 16 and the reverse pusher 30, and the qualified aggregate falls into the conveyor belt through the horizontal filter screen 13; the reverse pusher 30 pushes the large aggregate particles in the opposite direction, so that the large aggregate particles move towards the fan-shaped filter screen 14.

[0049] Start the discharge motor 7, which drives the separation shaft to rotate. The separation shaft drives the aggregate to move within the fan-shaped filter screen 14 for screening through the filter plate 15, and drives the large aggregate particles to the discharge port 8 for discharge. The qualified aggregate falls into the conveyor belt through the fan-shaped filter screen 14.

Claims

1. An aggregate crusher with screening function, characterized in that: The system includes a crushing chamber (1) with a crushing mechanism; a screening chamber (4) is connected to the crushing chamber (1) and a screening mechanism corresponding to the crushing mechanism is provided in the screening chamber (4); the screening mechanism includes a horizontal filter screen (13) fixed to the screening chamber (4) and a fan-shaped filter screen (14) connected to the horizontal filter screen (13); a separation component corresponding to the fan-shaped filter screen (14) is provided on the screening chamber (4) and a discharge port (8) corresponding to the separation component is connected on the screening chamber (4); a protective structure for protecting the horizontal filter screen (13) is provided on the screening chamber (4) and a feeding structure corresponding to the horizontal filter screen (13) is also provided in the screening chamber (4); The feeding structure includes an active pusher that moves linearly along the direction of approaching and moving away from the fan-shaped filter screen (14). Above the horizontal filter screen (13), there are also multiple driven pushers that move synchronously with the active pusher. The screening chamber (4) is also provided with equidistant components that drive the active pusher and the driven pusher to move synchronously and at equal intervals. The equidistant assembly includes a feeding motor (6) fixedly connected to the screening chamber (4), and a screw (18) connected to the output end of the feeding motor (6). The active pusher is screwed to the screw (18). A guide rod (17) is fixedly connected inside the screening chamber (4). The active pusher and the driven pusher are slidably connected to the guide rod (17). An active pusher is rotatably connected to an active rod (28), and a driven pusher is rotatably connected to an intermediate rod (27). The center of the intermediate rod (27) is rotatably connected to the driven pusher. The active rod (28) is rotatably connected to the adjacent intermediate rod (27), and the adjacent intermediate rods (27) are rotatably connected to each other. A driven rod (26) is rotatably connected inside the screening chamber (4), and the driven rod (26) is rotatably connected to the adjacent intermediate rod (27). Both the active and passive pusher include a scraper (16) arranged at an incline. A reverse pusher (30) is fixedly connected to one end of the scraper (16) near the fan-shaped filter screen (14). The scraper (16) and the reverse pusher (30) are slidably connected to the guide rod (17). A threaded cylinder that is screwed to the screw rod (18) is fixedly connected to the scraper (16) of the active pusher. Guide plates (29) are evenly distributed on the scraper (16).

2. The aggregate crusher with screening function as described in claim 1, characterized in that: The separation assembly includes a discharge motor (7) fixedly connected to the screening chamber (4), and a separation shaft is fixedly connected to the output end of the discharge motor (7). Multiple filter plates (15) corresponding to the fan-shaped filter screen (14) are evenly distributed along the circumference of the separation shaft.

3. The aggregate crusher with screening function as described in claim 1, characterized in that: The protective structure includes several active plates (19) evenly distributed along the screening chamber (4), and each of the active plates (19) is rotatably connected to the screening chamber (4); each of the active plates (19) is rotatably connected to a traction rod (22), and the other end of the traction rod (22) is rotatably connected to a driven plate (20). The end of the driven plate (20) near the traction rod (22) is located below the active plate (19), and the other end of the driven plate (20) is rotatably connected to the middle of the adjacent active plate (19).

4. The aggregate crusher with screening function as described in claim 3, characterized in that: Each of the aforementioned active plates (19) is coaxially fixed with a drive rod (23), and a synchronizing rod (21) is rotatably connected to the drive rod (23). Each of the aforementioned drive rods (23) is rotatably connected to the synchronizing rod (21).

5. The aggregate crusher with screening function as described in claim 4, characterized in that: A protective motor (5) is fixedly connected to the screening chamber (4), and a crank (31) is fixedly connected to the output end of the protective motor (5); the other end of the crank (31) is rotatably connected to a connecting rod (24), and the other end of the connecting rod (24) is rotatably connected to the middle of the synchronizing rod (21).

6. The aggregate crusher with screening function as described in claim 1, characterized in that: The crushing mechanism includes a pair of crushing shafts rotatably connected to the crushing chamber (1). A plurality of crushing discs (10) are evenly distributed along the axial direction on the pair of crushing shafts. Chains (12) are evenly distributed along the circumference on the plurality of crushing discs (10). Crushing hammers (11) are provided on the chains (12). A support frame is fixedly connected to the crushing chamber (1). A pair of crushing motors corresponding to the pair of crushing shafts are fixedly connected to the support frame. Both the pair of crushing motors and the pair of crushing shafts are connected to pulleys (9). The pulleys (9) of the crushing motors are provided with belts that cooperate with the pulleys (9) of the crushing shafts.

7. The aggregate crusher with screening function as described in claim 1, characterized in that: The crushing chamber (1) is provided with a feeding port (2), and inspection ports are provided on both sides of the crushing chamber (1); an inspection plate (3) corresponding to the inspection port is rotatably connected to the crushing chamber (1), and a connecting bolt that is screwed to the crushing chamber (1) is rotatably connected to the inspection plate (3).

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