An internal circulation type crushing and screening machine

By designing an internal circulation crushing and screening machine, a servo motor drives the transmission components and auger to achieve multiple cycles of material crushing, solving the problem of material particle size not meeting requirements in existing technologies and improving the crushing effect.

CN224405193UActive Publication Date: 2026-06-26JIANG SU HUO XING TE ZHONG TAO CI YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANG SU HUO XING TE ZHONG TAO CI YOU XIAN GONG SI
Filing Date
2025-05-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing crushing and screening machines lack internal circulation capabilities, resulting in materials not being able to be crushed multiple times, particle size not meeting requirements, and poor performance.

Method used

An internal circulation crushing and screening machine was designed. The transmission component driven by the servo motor drives the auger and crushing plate to achieve multiple circulation crushing of materials. The auger conveys unqualified materials upward and then falls back into the crushing plate for crushing. The machine combines the extrusion crushing mechanism of the hinge rod and spring rod.

Benefits of technology

This technology enables multiple cycles of material crushing, ensuring that the particle size meets the requirements and improving the performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of broken screening machine, and disclose a kind of broken screening machine of internal circulation, solve the existing broken screening machine without the ability of internal circulation, leading to material cannot be broken by multiple circulation, leading to the particle size of material crushing does not meet the requirement, its use effect is not good, it includes device main body, the bottom four corners of device main body are fixedly installed with support leg, one side of device main body is fixedly installed with support frame, one side of support frame is fixedly installed with servo motor, one side in device main body is equipped with broken plate, the upper portion of broken plate is rotatably installed with axle rod, and one side of broken plate is rotatably connected with the inside of one side of device main body by hinged link, and the lower portion of one side of broken plate is rotatably installed with spring rod;The broken screening machine has the ability of internal circulation crushing, can realize the multiple circulation crushing of material, ensure that the particle size of material crushing meets the requirement, has very good use effect.
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Description

Technical Field

[0001] This utility model belongs to the technical field of crushing and screening machines, specifically an internal circulation crushing and screening machine. Background Technology

[0002] A crushing and screening machine is a mechanical device that integrates crushing and screening functions. It is used to crush large materials into smaller particles and then classify them according to particle size through a screening device. Its working principle is that the material is first processed by the crushing mechanism, and then the screening mechanism separates qualified products from substandard particles. Substandard particles are returned to the crushing mechanism for recycling until the target particle size is reached. This equipment has advantages such as high efficiency, controllable particle size, and strong adaptability, and is widely used in mining, construction waste treatment, coal processing, and chemical raw material preparation. For example, in mines, it can crush ore to the particle size required for mineral processing; in construction waste treatment, it can crush waste concrete into recycled aggregate; and in coal processing, it can crush and screen raw coal to meet the needs of different combustion equipment.

[0003] Existing crushing and screening machines lack internal circulation capabilities, preventing materials from being crushed multiple times and resulting in material particle sizes that do not meet requirements, leading to poor performance. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an internal circulation crushing and screening machine, which effectively solves the problem that the existing crushing and screening machine does not have the ability to internally circulate, resulting in the material not being able to be crushed multiple times, the particle size of the crushed material not meeting the requirements, and its use effect being poor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal circulation crushing and screening machine, comprising a main body, with support legs fixedly installed at the four corners of the bottom of the main body, a support frame fixedly installed on one side of the main body, a servo motor fixedly installed on one side of the support frame, a crushing plate provided inside the main body on one side, a shaft rotatably installed on the upper part of the crushing plate, one side of the crushing plate being rotatably connected to one side of the main body via a hinge rod, and a spring rod rotatably installed on the lower part of one side of the crushing plate, the end of the spring rod away from the crushing plate being rotatably connected to the inner wall of one side of the main body. Next, a feed pipe is fixedly installed at the bottom of the main body of the device, a screen plate is fixedly installed at the lower part inside the main body of the device, and a conveying cylinder is fixedly installed on the other side inside the main body of the device. An auger is rotatably installed inside the conveying cylinder. The upper end of the auger is rotatably connected to the bottom of the conveying cylinder through a rotating sleeve. A feed chute is opened at the upper part of one side inside the main body of the device. A transmission component is provided at the output end of the servo motor. The transmission component is connected to the crushing plate and the auger. When the servo motor is running, it outputs power to the auger and the crushing plate through the transmission component, so that the auger circulates the material upward and the crushing plate crushes the material.

[0006] Preferably, the transmission assembly includes a drive sprocket, which is fixedly installed at the output end of the servo motor. A driven sprocket is provided on one side of the drive sprocket. A chain meshes between the driven sprocket and the drive sprocket. Diagonal rods are fixedly installed on both sides of the shaft. Bushings are rotatably installed on the surfaces of the two diagonal rods. The bottoms of the two bushings are fixedly connected to both sides of the device body through a fixing bracket.

[0007] Preferably, one side of the driven sprocket is fixedly connected to one end of one of the inclined rods, and a rotating shaft is fixedly installed on one side of the driving sprocket. Two bearings are rotatably installed on the surface of the rotating shaft, and the lower parts of the two bearings are fixedly connected to the main body of the device through connecting rods.

[0008] Preferably, a driving bevel gear is fixedly installed at one end of the rotating shaft, a driven bevel gear is meshed with the lower part of the surface of the driving bevel gear, and the bottom of the driven bevel gear is fixedly connected to the top of the auger.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator puts the material into the inside of the main body of the device, and then starts the servo motor to drive the active sprocket to rotate. The active sprocket drives the driven sprocket to rotate through the chain. When the driven sprocket rotates, it drives the shaft to rotate through one of the inclined rods. When the shaft rotates, it drives the other inclined rod to rotate. When the two inclined rods rotate, they rotate along the inside of the two bushings, which improves the stability of the shaft rotation. When the shaft rotates, it drives the crushing plate to reciprocate to crush the material through the cooperation of the hinge rod and the spring rod. The crushed material falls onto the screen plate for screening. The qualified material falls into the inner bottom of the main body of the device and is discharged through the feed pipe.

[0010] Unqualified materials are screened out, causing the top of the screen plate to slide into the inside of the conveying cylinder. When the drive sprocket rotates, it drives the shaft to rotate along the inside of the two bearings. When the shaft rotates, it drives the driven bevel gear to rotate through the drive bevel gear. When the driven bevel gear rotates, it drives the auger to rotate along the inside of the rotating sleeve. When the auger rotates, it conveys the unqualified materials upward and they fall back into the inside of the main body of the device through the discharge chute and are crushed again by the crushing plate, thus achieving the effect of internal circulation. This gives the crushing and screening machine the ability to perform internal circulation crushing, which can realize multiple circulation crushing of materials, ensuring that the particle size of the crushed materials meets the requirements, and has a very good performance. Attached Figure Description

[0011] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1This is a schematic diagram of the internal circulation crushing and screening machine of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the main body of the device of this utility model. Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the internal structure of the main body of the device of this utility model. Figure 2 ;

[0016] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Main body of the device; 2. Support leg; 3. Support frame; 4. Servo motor; 5. Crushing plate; 6. Hinge rod; 7. Spring rod; 8. Feed pipe; 9. Screw; 10. Screen plate; 11. Feed chute; 12. Drive sprocket; 13. Driven sprocket; 14. Chain; 15. Diagonal bar; 16. Shaft; 17. Bushing; 18. Fixing frame; 19. Rotating shaft; 20. Bearing; 21. Connecting rod; 22. Conveying cylinder; 23. Rotating sleeve; 24. Driven bevel gear; 25. Driven bevel gear. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1 to 4The present invention includes a device body 1, with support legs 2 fixedly installed at each of the four corners of the bottom of the device body 1. A support frame 3 is fixedly installed on one side of the device body 1, and a servo motor 4 is fixedly installed on one side of the support frame 3. A crushing plate 5 is provided inside the device body 1 on one side. A shaft 16 is rotatably installed on the upper part of the crushing plate 5. One side of the crushing plate 5 is rotatably connected to the inner side of the device body 1 through a hinge rod 6. A spring rod 7 is rotatably installed on the lower part of one side of the crushing plate 5. The end of the spring rod 7 away from the crushing plate 5 is rotatably connected to the inner wall of one side of the device body 1. A feed pipe is fixedly installed at the bottom of the device body 1. 8. A screen plate 10 is fixedly installed in the lower part of the device body 1. A conveying cylinder 22 is fixedly installed in the other side of the device body 1. An auger 9 is rotatably installed inside the conveying cylinder 22. The upper end of the auger 9 is rotatably connected to the bottom of the conveying cylinder 22 through a rotating sleeve 23. A feeding chute 11 is opened in the upper part of one side of the device body 1. A transmission component is provided at the output end of the servo motor 4. The transmission component is connected to the crushing plate 5 and the auger 9. When the servo motor 4 is running, it outputs power to the auger 9 and the crushing plate 5 through the transmission component, so that the auger 9 circulates the material upward and the crushing plate 5 crushes the material.

[0020] When in use, the operator puts the material into the inside of the main body 1 of the device, and then starts the servo motor 4 to drive the transmission component to run. When the transmission component runs, it drives the crushing plate 5 to repeatedly squeeze and crush the material through the cooperation of the hinge rod 6 and the spring rod 7. The crushed material falls on the screen plate 10 for screening. The qualified material falls into the bottom of the main body 1 of the device and is discharged through the feed pipe 8.

[0021] Unqualified materials are screened and the top of the screen plate 10 slides into the inside of the conveying cylinder 22. While the transmission component is running, it also drives the auger 9 to rotate along the inside of the rotating sleeve 23. When the auger 9 rotates, it conveys the unqualified materials upward and they fall back into the inside of the main body 1 through the discharge chute 11 and are crushed again by the crushing plate 5, thereby achieving the effect of internal circulation. This gives the crushing and screening machine the ability to internally circulate and crush materials, which can achieve multiple cycles of crushing and ensure that the particle size of the crushed materials meets the requirements, resulting in very good performance.

[0022] The transmission assembly includes a drive sprocket 12, which is fixedly installed at the output end of the servo motor 4. A driven sprocket 13 is provided on one side of the drive sprocket 12. A chain 14 is meshed between the driven sprocket 13 and the drive sprocket 12. Diagonal rods 15 are fixedly installed on both sides of the shaft 16. Bushings 17 are rotatably installed on the surfaces of the two diagonal rods 15. The bottoms of the two bushings 17 are fixedly connected to the two sides of the device body 1 through a fixing bracket 18.

[0023] The servo motor 4 is started to drive the drive sprocket 12 to rotate. The drive sprocket 12 drives the driven sprocket 13 to rotate through the chain 14. When the driven sprocket 13 rotates, it drives the shaft 16 to rotate through one of the inclined rods 15. When the shaft 16 rotates, it drives the other inclined rod 15 to rotate. When the two inclined rods 15 rotate, they rotate along the inside of the two bushings 17, which improves the stability of the shaft 16 when it rotates. When the shaft 16 rotates, it drives the crushing plate 5 to reciprocate to crush the material through the cooperation of the hinge rod 6 and the spring rod 7.

[0024] One side of the driven sprocket 13 is fixedly connected to one end of one of the inclined rods 15. A rotating shaft 19 is fixedly installed on one side of the driving sprocket 12. Two bearings 20 are rotatably installed on the surface of the rotating shaft 19. The lower parts of the two bearings 20 are fixedly connected to the main body 1 of the device through connecting rods 21. A driving bevel gear 24 is fixedly installed on one end of the rotating shaft 19. A driven bevel gear 25 is meshed with the lower part of the surface of the driving bevel gear 24. The bottom of the driven bevel gear 25 is fixedly connected to the top of the auger 9.

[0025] When the drive sprocket 12 rotates, it drives the shaft 19 to rotate along the inside of the two bearings 20. When the shaft 19 rotates, it drives the driven bevel gear 25 to rotate through the drive bevel gear 24. When the driven bevel gear 25 rotates, it drives the auger 9 to rotate along the inside of the rotating sleeve 23. When the auger 9 rotates, it conveys the unqualified material upwards and falls back into the inside of the main body 1 through the discharge chute 11 and is crushed again by the crushing plate 5.

Claims

1. An internal-circulation type crushing and screening machine comprising a machine body (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom of the main body (1) of the device. A support frame (3) is fixedly installed on one side of the main body (1). A servo motor (4) is fixedly installed on one side of the support frame (3). A crushing plate (5) is provided on one side inside the main body (1). A shaft (16) is rotatably installed on the upper part of the crushing plate (5). One side of the crushing plate (5) is rotatably connected to the inner side of the main body (1) through a hinge rod (6). A spring rod (7) is rotatably installed on the lower part of one side of the crushing plate (5). The end of the spring rod (7) away from the crushing plate (5) is rotatably connected to the inner wall of one side of the main body (1). A feed pipe (8) is fixedly installed at the bottom of the main body (1). (1) A screen plate (10) is fixedly installed in the lower part of the interior. A conveying cylinder (22) is fixedly installed on the other side of the main body (1). An auger (9) is rotatably installed inside the conveying cylinder (22). The upper end of the auger (9) is rotatably connected to the bottom of the conveying cylinder (22) through a rotating sleeve (23). A feeding trough (11) is opened in the upper part of one side of the main body (1). A transmission component is provided at the output end of the servo motor (4). The transmission component is connected to the crushing plate (5) and the auger (9). When the servo motor (4) is running, it outputs power to the auger (9) and the crushing plate (5) through the transmission component, so that the auger (9) circulates the material upward and the crushing plate (5) crushes the material.

2. The internal circulation crushing and screening machine according to claim 1, characterized in that: The transmission assembly includes a drive sprocket (12), which is fixedly installed at the output end of the servo motor (4). A driven sprocket (13) is provided on one side of the drive sprocket (12). A chain (14) meshes between the driven sprocket (13) and the drive sprocket (12). Diagonal rods (15) are fixedly installed on both sides of the shaft (16). Bushings (17) are rotatably installed on the surfaces of the two diagonal rods (15). The bottoms of the two bushings (17) are fixedly connected to both sides of the main body (1) of the device through a fixing bracket (18).

3. The internal circulation crushing and screening machine according to claim 2, characterized in that: One side of the driven sprocket (13) is fixedly connected to one end of one of the inclined rods (15), and a rotating shaft (19) is fixedly installed on one side of the driving sprocket (12). Two bearings (20) are rotatably installed on the surface of the rotating shaft (19), and the lower parts of the two bearings (20) are fixedly connected to the main body (1) of the device through a connecting rod (21).

4. The internal circulation crushing and screening machine according to claim 3, characterized in that: One end of the rotating shaft (19) is fixedly installed with a driving bevel gear (24), and a driven bevel gear (25) is meshed with the lower part of the surface of the driving bevel gear (24). The bottom of the driven bevel gear (25) is fixedly connected to the top of the auger (9).