Aggregate screening device for self-compacting concrete

Abstract

The utility model relates to the technical field of aggregate screening devices, and discloses an aggregate screening device for self-compacting concrete, which comprises an equipment body, a first screening plate is movably sleeved in an inner cavity of the equipment body, a second screening plate is movably sleeved in the inner cavity of the equipment body, and a blanking bin is fixedly assembled at the top of the equipment body. According to the aggregate screening device for the self-compacting concrete, a moving groove is formed in the outer wall of a rotating disc, an adjusting rod is arranged on the inner wall of the moving groove, the position of the adjusting rod is adjusted by rotating an adjusting nut, and the length between a first screw and a threaded cylinder and the length between a second screw are adjusted; according to the device, the first screening plate and the second screening plate are arranged, so that the swing amplitude of the first screening plate and the second screening plate is adjusted, the device can be better suitable for screening work of different aggregates, the swing amplitude of the screening plates can be better adjusted along with adjustment of the aggregates, and the screening efficiency of the aggregates is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aggregate screening devices, specifically an aggregate screening device for self-compacting concrete. Background Technology

[0002] Aggregates are granular loose materials that act as a skeleton or filler in concrete. As the main raw material in concrete, aggregates play a skeleton and supporting role in buildings. During aggregate processing, aggregates are screened by an aggregate vibrating screening device.

[0003] Traditional aggregate screening devices use a motor to drive the screen plate to swing, which in turn screens the aggregates. However, the swing amplitude of the screen plate in traditional equipment cannot be adjusted. This means that when screening different aggregates, the swing amplitude of the screen plate cannot be adjusted according to the aggregate characteristics, which affects the efficiency of aggregate screening and thus the working progress of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an aggregate screening device for self-compacting concrete, which has the advantages of adjustable swing amplitude and dust adsorption and settling, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: A self-compacting concrete aggregate screening device, comprising a device body, a first screening plate movably sleeved within the inner cavity of the device body, a second screening plate movably sleeved within the inner cavity of the device body, a feeding hopper fixedly mounted on the top of the device body, a drive motor fixedly mounted on the outer wall of the device body, a rotating disk fixedly mounted on the power output shaft of the drive motor, a groove formed on the outer wall of the rotating disk, a fixing rod fixedly mounted on the outer wall of the first screening plate, a first screw rotatably connected to the outer wall of the fixing rod, a threaded cylinder threadedly connected to the outer wall of the first screw, and a second screw threadedly connected to the inner cavity of the threaded cylinder. The equipment includes a screw, an adjusting rod rotatably connected to the inner cavity of the second screw, an adjusting nut threaded onto the outer wall of the adjusting rod, a water tank mounted on the top of the equipment body, an air guide pipe fixedly mounted on the top of the equipment body, a connecting pipe mounted on the top of the water tank, a water pump fixedly mounted on the outer wall of the connecting pipe, a settling chamber mounted on the top of the equipment body, a guide platform mounted at the bottom of the inner cavity of the settling chamber, a guide plate fixedly mounted on the outer wall of the guide platform, a nozzle fixedly mounted on the top of the inner cavity of the guide platform, a discharge plate fixedly mounted on the outer wall of the equipment body, an exhaust duct fixedly mounted on the outer wall of the settling chamber, and a fan mounted inside the exhaust duct.

[0006] As a preferred embodiment of this utility model: the outer wall of the adjusting rod passes through the inner cavity of the slide groove, and the outer wall of the adjusting nut is in contact with the outer wall of the rotating disk on the side near the drive motor.

[0007] As a preferred technical solution of this utility model: the outer wall threads of the No. 1 screw and the No. 2 screw have opposite directions, and the outer wall diameter of the adjusting nut is greater than the distance between the inner walls of the slide groove.

[0008] As a preferred technical solution of this utility model: the two ends of the outer wall of the air guide pipe are respectively connected to the inner cavity of the sedimentation tank and the equipment body, and the inner cavity of the connecting pipe is respectively connected to the inner cavity of the water tank and the nozzle.

[0009] As a preferred technical solution of this utility model: the inner cavity of the exhaust duct is connected to the inner cavity of the settling chamber, and the outer wall of the guide platform is trapezoidal in shape.

[0010] As a preferred technical solution of this utility model: there are two drive motors, and the two drive motors are respectively installed on both sides of the outer wall of the equipment body.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This aggregate screening device for self-compacting concrete uses a movable groove on the outer wall of the rotating disc and an adjusting rod on the inner wall of the movable groove. By rotating the adjusting nut, the position of the adjusting rod can be adjusted, and the length between the No. 1 screw and the threaded cylinder and the No. 2 screw can be adjusted. This allows for adjustment of the swing amplitude of the No. 1 and No. 2 screening plates, making the equipment more suitable for different aggregate screening operations. The swing amplitude of the screening plates can be better adjusted with the aggregate, thereby improving the aggregate screening efficiency.

[0013] 2. This self-compacting concrete aggregate screening device uses a settling chamber set on the top of the equipment body. Dust is drawn into the settling chamber by the action of the air duct and the blower. Water from the water tank is introduced into the settling chamber through the connecting pipe and released downward by the nozzle, so as to achieve the settling of dust. The dust flows outward along the guide platform and guide plate, avoiding the release of a large amount of dust into the air. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

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

[0016] Figure 3 This is a schematic diagram of the No. 1 screening plate structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the rotating disk structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the settling chamber structure of this utility model.

[0019] In the diagram: 1. Equipment body; 2. Screening plate No. 1; 3. Screening plate No. 2; 4. Feed hopper; 5. Rotary disc; 6. Drive motor; 7. Slide chute; 8. Fixed rod; 9. Screw No. 1; 10. Threaded cylinder; 11. Screw No. 2; 12. Adjusting rod; 13. Air guide pipe; 14. Water tank; 15. Connecting pipe; 16. Water pump; 17. Settling chamber; 18. Guide platform; 19. Guide plate; 20. Nozzle; 21. Discharge plate; 22. Exhaust duct; 23. Fan; 24. Adjusting nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 5 A self-compacting concrete aggregate screening device includes a device body 1. A first screening plate 2 is movably fitted into the inner cavity of the device body 1. A second screening plate 3 is movably fitted into the inner cavity of the device body 1. A feeding hopper 4 is fixedly mounted on the top of the device body 1. A drive motor 6 is fixedly mounted on the outer wall of the device body 1. A rotating disk 5 is fixedly mounted on the power output shaft of the drive motor 6. A groove 7 is formed on the outer wall of the rotating disk 5. A fixing rod 8 is fixedly mounted on the outer wall of the first screening plate 2. A first screw 9 is rotatably connected to the outer wall of the fixing rod 8. A threaded cylinder 10 is threadedly connected to the outer wall of the first screw 9. A second screw 11 is threadedly connected to the inner cavity of the threaded cylinder 10. The inner cavity of the second screw 11 is rotatably connected to... An adjusting rod 12 is connected, and an adjusting nut 24 is threaded onto the outer wall of the adjusting rod 12. A water tank 14 is installed on the top of the equipment body 1. An air guide pipe 13 is fixedly installed on the top of the equipment body 1. A connecting pipe 15 is installed on the top of the water tank 14. A water pump 16 is fixedly installed on the outer wall of the connecting pipe 15. A settling chamber 17 is installed on the top of the equipment body 1. A guide platform 18 is installed at the bottom of the inner cavity of the settling chamber 17. A guide plate 19 is fixedly installed on the outer wall of the guide platform 18. A nozzle 20 is fixedly installed on the top of the inner cavity of the guide platform 18. A discharge plate 21 is fixedly installed on the outer wall of the equipment body 1. An exhaust duct 22 is fixedly installed on the outer wall of the settling chamber 17. A fan 23 is installed in the inner cavity of the exhaust duct 22.

[0022] In the above structure, the No. 1 screening plate 2 and the No. 2 screening plate 3 installed in the inner cavity of the equipment body 1, and the drive motor 6 and the rotating disk 5 installed on the outer wall of the equipment body 1, can drive the No. 1 screening plate 2 and the No. 2 screening plate 3 under the action of the drive motor 6 and the rotating disk 5, so that the No. 1 screening plate 2 and the No. 2 screening plate 3 can reciprocate in the inner cavity of the equipment body 1, thereby screening the aggregate under the action of the No. 1 screening plate 2 and the No. 2 screening plate 3.

[0023] In a preferred embodiment: the outer wall of the adjusting rod 12 passes through the inner cavity of the slide groove 7, and the outer wall of the adjusting nut 24 is in contact with the outer wall of the rotating disk 5 on the side near the drive motor 6.

[0024] In the above structure, by setting a fixed rod 8 on the outer wall of the first screening plate 2, and setting a first screw 9, a threaded cylinder 10, a second screw 11, and an adjusting rod 12 on the outer wall of the fixed rod 8, when the drive motor 6 drives the rotating disk 5 to rotate, the adjusting rod 12 is fixed on the outer wall of the rotating disk 5 under the action of the adjusting nut 24, so that when the rotating disk 5 rotates, it can drive the fixed rod 8 to reciprocate, thereby causing the first screening plate 2 to reciprocate in the inner cavity of the equipment body 1.

[0025] In a preferred embodiment: the outer wall threads of screw 9 and screw 11 are opposite in direction, and the outer wall diameter of adjusting nut 24 is greater than the distance between the inner walls of groove 7.

[0026] In the above structure, by setting the first screw 9 and the threaded cylinder 10 and the second screw 11 between the rotating disk 5 and the fixed rod 8, when it is necessary to adjust the swing amplitude of the first screening plate 2, the position of the adjusting rod 12 on the inner wall of the slide 7 is adjusted, and the positions of the second screw 11 and the first screw 9 in the inner cavity of the threaded cylinder 10 are appropriately adjusted. After the position of the adjusting rod 12 is adjusted, the swing amplitude of the fixed rod 8 and the first screening plate 2 driven by the rotating disk 5 can be changed, thereby better screening different aggregates.

[0027] In a preferred embodiment: the two ends of the outer wall of the air guide pipe 13 are respectively connected to the inner cavity of the settling chamber 17 and the equipment body 1, and the inner cavity of the connecting pipe 15 is respectively connected to the inner cavity of the water tank 14 and the nozzle 20.

[0028] In the above structure, the air guide pipe 13 installed on the top of the equipment body 1 can guide the dust generated during screening into the inner cavity of the settling chamber 17 under the action of the air guide pipe 13. Under the action of the water pump 16 and the connecting pipe 15, the water in the water tank 14 is introduced into the settling chamber 17 and released into the inner cavity of the settling chamber 17 under the action of the nozzle 20, thereby realizing the settling of dust.

[0029] In a preferred embodiment, the inner cavity of the exhaust duct 22 is connected to the inner cavity of the settling chamber 17, and the outer wall of the guide platform 18 is trapezoidal in shape.

[0030] In the above structure, the exhaust duct 22 installed on the outer wall of the settling chamber 17 and the fan 23 installed in the inner cavity of the exhaust duct 22 can draw the dust in the inner cavity of the equipment body 1 into the settling chamber 17 under the action of the fan 23, and then release water mist under the action of the nozzle 20 to settle the dust generated by screening.

[0031] In a preferred embodiment, there are two drive motors 6, and the two drive motors 6 are respectively installed on both sides of the outer wall of the device body 1.

[0032] In the above structure, drive motors 6 are respectively installed on both sides of the outer wall of the equipment body 1. Under the action of drive motors 6, the rotating disk 5 can be driven to rotate, thereby realizing the reciprocating motion of the first screening plate 2 and the second screening plate 3, and thus realizing the screening of aggregates under the action of the reciprocating motion of the first screening plate 2 and the second screening plate 3.

[0033] Working Principle: During the operation of the above equipment, when it is necessary to screen aggregates, the swing amplitude of the No. 1 screening plate 2 and the No. 2 screening plate 3 is adjusted according to the screening requirements. At the same rotation speed of the rotating disc 5, different swing amplitudes of the No. 1 screening plate 2 and the No. 2 screening plate 3 can be achieved, thereby achieving different screening effects. During adjustment, the threaded cylinder 10 needs to be rotated first. Under the action of the threaded cylinder 10, the No. 1 screw 9 and the No. 2 screw 11 can move outward or inward simultaneously along the inner wall of the threaded cylinder 10. At this time, the total length of the No. 1 screw 9, the threaded cylinder 10, and the No. 2 screw 11 will change. Then, the position of the adjusting rod 12 is adjusted by rotating the adjusting nut 24. The nut 24 separates from the outer wall of the rotating disk 5, and then the adjusting rod 12 can be pushed to move along the inner wall of the slide 7 to adjust the position of the adjusting rod 12, thereby adjusting the swing amplitude of the first screening plate 2 and the second screening plate 3. Then, aggregate can be fed into the inner cavity of the equipment body 1 through the feeding hopper 4. Then, the blower 23 can be started. Under the action of the exhaust duct 22 and the blower 23, the dust in the inner cavity of the equipment body 1 is drawn into the inner cavity of the settling chamber 17 through the air guide pipe 13. Then, under the action of the water pump 16 and the connecting pipe 15, water is supplied to the inner cavity of the nozzle 20 and released outward through the nozzle 20, thereby settling the dust drawn into the inner cavity of the settling chamber 17 and preventing the dust from escaping into the air.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for aggregates used in self-compacting concrete, comprising a main body (1), characterized in that: The inner cavity of the equipment body (1) is movably fitted with a first screening plate (2), and the inner cavity of the equipment body (1) is movably fitted with a second screening plate (3). The top of the equipment body (1) is fixedly fitted with a feeding bin (4). The outer wall of the equipment body (1) is fixedly fitted with a drive motor (6). The power output shaft of the drive motor (6) is fixedly fitted with a rotating disk (5). The outer wall of the rotating disk (5) is provided with a sliding groove (7). The outer wall of the first screening plate (2) is fixedly fitted with a fixing rod (8). The outer wall of the fixing rod (8) is rotatably connected with a first screw (9). The outer wall of the first screw (9) is threadedly connected with a threaded cylinder (10). The inner cavity of the threaded cylinder (10) is threadedly connected with a second screw (11). The inner cavity of the second screw (11) is rotatably connected with an adjusting rod (12). The outer wall of the device is threaded with an adjusting nut (24). A water tank (14) is installed on the top of the device body (1). An air guide pipe (13) is fixedly installed on the top of the device body (1). A connecting pipe (15) is installed on the top of the water tank (14). A water pump (16) is fixedly installed on the outer wall of the connecting pipe (15). A settling chamber (17) is installed on the top of the device body (1). A guide platform (18) is installed at the bottom of the inner cavity of the settling chamber (17). A guide plate (19) is fixedly installed on the outer wall of the guide platform (18). A nozzle (20) is fixedly installed on the top of the inner cavity of the guide platform (18). A discharge plate (21) is fixedly installed on the outer wall of the device body (1). An exhaust duct (22) is fixedly installed on the outer wall of the settling chamber (17). A fan (23) is installed in the inner cavity of the exhaust duct (22).

2. The aggregate screening device for self-compacting concrete according to claim 1, characterized in that: The outer wall of the adjusting rod (12) passes through the inner cavity of the slide groove (7), and the outer wall of the adjusting nut (24) is in contact with the outer wall of the rotating disk (5) on the side near the drive motor (6).

3. The aggregate screening device for self-compacting concrete according to claim 1, characterized in that: The outer wall threads of the first screw (9) and the second screw (11) are opposite, and the outer wall diameter of the adjusting nut (24) is greater than the distance between the inner walls of the groove (7).

4. The aggregate screening device for self-compacting concrete according to claim 1, characterized in that: The outer ends of the air guide pipe (13) are connected to the inner cavities of the settling chamber (17) and the equipment body (1), respectively, and the inner cavity of the connecting pipe (15) is connected to the inner cavities of the water tank (14) and the nozzle (20), respectively.

5. The aggregate screening device for self-compacting concrete according to claim 1, characterized in that: The inner cavity of the exhaust duct (22) is connected to the inner cavity of the settling chamber (17), and the outer wall of the guide platform (18) is trapezoidal.

6. The aggregate screening device for self-compacting concrete according to claim 1, characterized in that: There are two drive motors (6), and the two drive motors (6) are respectively installed on both sides of the outer wall of the device body (1).

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