Vibration type screening device for cement powder

Abstract

The utility model belongs to the technical field of cement screening, and relates to a cement powder vibrating type screening device which comprises a box body, a first fixing plate and a second fixing plate are fixedly installed on the two sides of the top face in the box body respectively, a roller is rotatably installed between the first fixing plate and the second fixing plate, and the roller is obliquely arranged. Sieve holes are formed in the outer surface and the lower side of the roller; a feeding hopper is fixedly mounted at the top end of the box body, a fixing sleeve is fixedly connected to the bottom end of the feeding hopper, and the higher end of the roller is rotationally inserted into the fixing sleeve; a plurality of guide blocks are uniformly and fixedly connected to two sides of the outer surface of the roller around the axis; a vibration assembly used for knocking the roller is arranged between the feeding hopper and the second fixing plate, the vibration assembly is in sliding fit with the guide block, the knocking block is arranged to knock the top end of the roller, the roller is made to vibrate, materials attached to the interior of the screen holes can be vibrated off, the situation that screening of the materials is affected due to the fact that the screen holes are blocked is prevented, and the screening efficiency of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cement screening technology and relates to a vibrating screening device for cement powder. Background Technology

[0002] Cement is a powdered hydraulic inorganic binder. When mixed with water, it forms a paste that hardens in air or, even better, in water, effectively binding materials such as sand and stone together. Early mixtures of lime and volcanic ash were very similar to modern lime-volcanic ash cement. Concrete made with this binder, using crushed stone, not only achieved high strength after hardening but also resisted erosion from both fresh and salt water. For a long time, it has been widely used as an important binder in civil engineering, water conservancy, and national defense projects.

[0003] A cement raw material screening device disclosed in Chinese patent CN215141855U includes a housing with a motor fixedly installed on the top of the housing. The output end of the motor drives a rotating shaft. In use, the cement raw material falls from a pipe into a screening frame, which lies flat inside the housing. After falling into the screening frame, the cement raw material can only be discharged through the screen holes by the rotation of the screening frame and the tapping of the screening frame by connecting blocks, resulting in reduced screening efficiency.

[0004] A screening device for metal powder processing disclosed in Chinese patent CN220092049U includes a base frame, a worktable fixedly installed on the upper part of the base frame, and a screening mechanism movably installed on the worktable. Through the screening mechanism, metal powder particles are filtered in the screening barrel through the filter holes on the side wall. A vibration motor continuously vibrates the screening barrel to make the filtration smoother. The filtered powder is discharged through the discharge hopper.

[0005] In use, the existing screening device tilts the screening barrel and uses a geared motor to drive the screening barrel to rotate. A vibration motor is used to make the screening barrel vibrate when it rotates, making the screening smoother. However, the vibration motor is far away from the screening barrel, resulting in a limited vibration effect on the screening barrel.

[0006] To address the aforementioned problems, this invention proposes a vibrating screening device for cement powder. Utility Model Content

[0007] To address the problems existing in the background technology, this utility model proposes a vibrating screening device for cement powder.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vibrating screening device for cement powder includes a box body, on both sides of the inner top surface of the box body a first fixed plate and a second fixed plate are fixedly installed respectively, and a roller is rotatably installed between the first fixed plate and the second fixed plate, the roller being inclined; sieve holes are opened on the outer surface and lower side of the roller; a feeding hopper is fixedly installed at the top of the box body, a fixed sleeve is fixedly connected to the bottom end of the feeding hopper, and the higher end of the roller is rotatably inserted into the inside of the fixed sleeve; multiple guide blocks are evenly fixedly connected to both sides of the outer surface of the roller around an axis; a vibrating component for striking the roller is provided between the feeding hopper and the second fixed plate, the vibrating component slidingly engaging with the guide blocks.

[0009] Preferably, the vibration assembly includes a third fixed plate, a sliding shaft, a spring, a striking block, a connecting plate, and a connecting shaft; the third fixed plate is fixedly installed on the opposite surface of the feeding hopper and the second fixed plate, and multiple sliding shafts are slidably installed on the upper limit of the third fixed plate. Each sliding shaft has a striking block fixedly connected to its bottom end, and the striking block abuts against the outer surface of the drum; a connecting plate is fixedly installed on the outer side of the multiple sliding shafts, and a spring is sleeved on the outer side of the sliding shaft. The two ends of the spring are respectively fixedly installed on the opposite surface of the third fixed plate and the connecting plate; a connecting shaft is fixedly connected to both ends of the connecting plate, and the connecting shaft slides in cooperation with a guide block on the same side.

[0010] Preferably, a connecting plate is fixedly installed on the opposite surface of the feeding hopper and the first fixed plate.

[0011] Preferably, a gear ring is fixedly installed on the higher side of the roller, a motor is fixedly installed on the side wall of the first fixed plate, and a gear is fixedly installed on the output shaft of the motor, with the gear meshing with the gear ring.

[0012] Preferably, two notches are provided on the roller at the position corresponding to the fixed sleeve, and the feeding hopper is connected to the inside of the roller through the notches.

[0013] Preferably, a collection box is slidably installed on the bottom inside the box, and a handle is fixedly installed on the side wall of the collection box.

[0014] Preferably, both ends of the roller are rotatably mounted with fixed shafts, and the other ends of the two fixed shafts are bolted to the first fixed plate and the second fixed plate, respectively.

[0015] Preferably, the vibration assembly includes a rotating shaft, a fixed block, and a rotating rod; the rotating shaft is rotatably mounted on the opposite surface of the feeding hopper and the second fixed plate.

[0016] Multiple rotating rods are fixedly installed on the outer side of the rotating shaft. Each rotating rod has a striking block fixedly connected to its end away from the rotating shaft. Fixed blocks are fixedly installed on both sides of the rotating shaft, and the fixed blocks slide in engagement with the guide blocks on the same side. Torsion springs are fixedly connected to both ends of the rotating shaft, and the other ends of the two torsion springs are fixedly connected to the feeding hopper and the second fixed plate, respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This vibrating screening device for cement powder uses an inclined drum. After the material enters the drum, it slides down from a higher position and spreads evenly. The rotation of the drum causes the material inside to tumble, preventing it from piling up in one place and thus improving screening efficiency.

[0019] 2. The vibrating screening device for cement powder uses a striking block to strike the top of the drum, causing the drum to vibrate. This can shake off the material adhering to the screen holes, preventing the screen holes from clogging and thus affecting the screening of the material. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the vibration component structure of Embodiment 1 of this utility model;

[0022] Figure 3 This is a partial cross-sectional view of Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the roller structure of this utility model;

[0024] Figure 5 This is a partial structural schematic diagram of Embodiment 1 of this utility model;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of Embodiment 2 of this utility model;

[0026] Figure 7 This is a partial cross-sectional view of Embodiment 2 of this utility model.

[0027] In the diagram: 1. Box body; 2. Collection box; 3. First fixing plate; 4. Second fixing plate; 5. Motor; 6. Gear; 7. Gear ring; 8. Drum; 9. Screen hole; 10. Fixing sleeve; 11. Feed hopper; 12. Notch; 13. Fixing shaft; 14. Fixing rod; 15. Guide block; 16. Third fixing plate; 17. Sliding shaft; 18. Spring; 19. Striking block; 20. Connecting plate; 21. Connecting shaft; 22. Rotating shaft; 23. Fixing block; 24. Rotating rod. Detailed Implementation

[0028] 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.

[0029] Example 1: As Figures 1-5 As shown, the technical solution adopted by this utility model is as follows: a vibrating screening device for cement powder includes a box 1, a first fixing plate 3 and a second fixing plate 4 are fixedly installed on both sides of the inner top surface of the box 1, and a roller 8 is rotatably installed between the first fixing plate 3 and the second fixing plate 4.

[0030] To drive the roller 8 to rotate, a gear ring 7 is fixedly installed on the higher side of the roller 8, a motor 5 is fixedly installed on the side wall of the first fixed plate 3, and a gear 6 is fixedly installed on the output shaft of the motor 5. The gear 6 meshes with the gear ring 7.

[0031] The roller 8 is tilted. Screen holes 9 are provided on both the outer surface and the lower side of the roller 8.

[0032] A feeding hopper 11 is fixedly installed on the top of the box 1, and a connecting plate is fixedly installed on the opposite surface of the feeding hopper 11 and the first fixed plate 3.

[0033] The bottom end of the feeding hopper 11 is fixedly connected to a fixed sleeve 10, and the higher end of the roller 8 is rotatably inserted into the fixed sleeve 10.

[0034] Two notches 12 are provided on the roller 8 at the position corresponding to the fixed sleeve 10, and the feeding hopper 11 is connected to the inside of the roller 8 through the notches 12.

[0035] Multiple guide blocks 15 are evenly fixed to both sides of the outer surface of the roller 8 around its axis. A vibration assembly for striking the roller 8 is provided between the feeding hopper 11 and the second fixed plate 4. The vibration assembly is slidably engaged with the guide blocks 15.

[0036] The vibration assembly includes a third fixed plate 16, a sliding shaft 17, a spring 18, a striking block 19, a connecting plate 20, and a connecting shaft 21. The third fixed plate 16 is fixedly installed on the opposite surface of the feeding hopper 11 and the second fixed plate 4. Multiple sliding shafts 17 are slidably installed on the upper limit of the third fixed plate 16. The bottom end of each sliding shaft 17 is fixedly connected to a striking block 19, which abuts against the outer surface of the roller 8.

[0037] A connecting plate 20 is fixedly installed on the outer side of multiple sliding shafts 17, and a spring 18 is sleeved on the outer side of the sliding shaft 17. The two ends of the spring 18 are respectively fixedly installed on the opposite surfaces of the third fixing plate 16 and the connecting plate 20.

[0038] Both ends of the connecting plate 20 are fixedly connected to the connecting shaft 21, and the connecting shaft 21 slides with the guide block 15 on the same side.

[0039] To collect cement powder, a collection box 2 is slidably installed on the bottom inside the box 1, and a handle is fixedly installed on the side wall of the collection box 2.

[0040] Both ends of the roller 8 are rotatably mounted with fixed shafts 13, and the other ends of the two fixed shafts 13 are bolted to the first fixed plate 3 and the second fixed plate 4 respectively.

[0041] After screening is completed, the roller 8 can be removed from between the first fixed plate 3 and the second fixed plate 4, and then the inside of the roller 8 can be cleaned.

[0042] The lower end of the fixed shaft 13 is fixedly mounted with a fixed rod 14 on one end inside the drum 8, and the fixed rod 14 is in contact with the inner wall of the drum 8.

[0043] Working principle:

[0044] When using this device for screening, first place the collection box 2 at the bottom of the box 1, then feed the material into the feeding hopper 11. At the same time as feeding, start the motor 5, which will drive the gear 6 to rotate. The rotation of the gear 6 will drive the gear ring 7 to rotate, which in turn will drive the roller 8 to rotate. When the roller 8 rotates, the notch 12 on the roller 8 will also rotate. When the notch 12 rotates to the feeding hopper 11, the feeding hopper 11 will connect with the inside of the roller 8 through the notch 12.

[0045] At this time, the material in the feeding hopper 11 falls into the drum 8. When the notch 12 leaves the connection of the feeding hopper 11, the feeding hopper 11 and the drum 8 are no longer connected, and the material no longer falls in, thus allowing for intermittent feeding.

[0046] The roller 8 is inclined, so after the material enters the roller 8, it slides down from a higher position and spreads evenly. The rotation of the roller 8 causes the material inside the roller 8 to tumble, thereby preventing the material from piling up in one place and improving screening efficiency.

[0047] The roller 8 rotates on the fixed shafts 13 on both sides, causing the roller 8 to rotate relative to the fixed rod 14. Through the cooperation of the fixed rod 14, the material inside the roller 8 is evenly dispersed. The qualified material will fall into the collection box 2 below through the sieve holes 9.

[0048] When the roller 8 rotates, it will drive the guide block 15 to rotate. When the inclined surface of the guide block 15 rotates to the connecting shaft 21, it will push the connecting shaft 21 to move upward. The connecting shaft 21 will drive the connecting plate 20 to move synchronously.

[0049] The connecting plate 20 will drive multiple sliding shafts 17 to slide upwards. The sliding shafts 17 will drive the striking blocks 19 to move upwards and compress the springs 18. When the connecting shaft 21 reaches the top of the inclined surface of the guide block 15, as the guide block 15 continues to rotate, the connecting shaft 21 is no longer pushed by the inclined surface. Under the push of the multiple springs 18, the multiple striking blocks 19 will quickly rebound and strike the top of the drum 8, causing the drum 8 to vibrate. This can shake off the material attached to the drum 8 and the screen holes 9, preventing the screen holes 9 from clogging and affecting the screening of materials.

[0050] Example 2: As Figures 6-7 As shown, the difference between this embodiment and Embodiment 1 lies in the vibration assembly. The vibration assembly in this embodiment includes a rotating shaft 22, a fixing block 23, and rotating rods 24. The rotating shaft 22 is rotatably mounted on the opposite surfaces of the feeding hopper 11 and the second fixing plate 4. Multiple rotating rods 24 are fixedly mounted on the outer side of the rotating shaft 22. Each rotating rod 24 has a striking block 19 fixedly connected to its end away from the rotating shaft 22. Fixing blocks 23 are fixedly mounted on both sides of the rotating shaft 22, and the fixing blocks 23 slide against the guide blocks 15 on the same side.

[0051] Both ends of the rotating shaft 22 are fixedly connected to torsion springs, and the other ends of the two torsion springs are fixedly connected to the feeding hopper 11 and the second fixed plate 4, respectively.

[0052] Working principle:

[0053] The difference between this embodiment and embodiment 1 is that the way the roller 8 is struck is different, but the rest of the working process is the same as that of embodiment 1.

[0054] When the roller 8 rotates, it drives the guide block 15 to rotate. When the inclined surface of the guide block 15 reaches the fixed block 23, it pushes the fixed block 23 to rotate. The fixed block 23 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives multiple rotating rods 24 to rotate, while the torsion spring stores energy. The striking block 19 rotates in a direction away from the roller 8.

[0055] When the fixed block 23 reaches the top of the inclined surface of the guide block 15, as the guide block 15 continues to rotate, the fixed block 23 is no longer pushed by the guide block 15. Under the rotation of the torsion spring, multiple striking blocks 19 quickly rebound and strike the top of the roller 8, causing the roller 8 to vibrate. This can shake off the material attached to the roller 8 and the screen hole 9, preventing the screen hole 9 from becoming clogged and affecting the screening of the material.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibrating screening device for cement powder, comprising a housing (1), characterized in that, The inner top surface of the box (1) is fixedly installed with a first fixing plate (3) and a second fixing plate (4) respectively. A roller (8) is rotatably installed between the first fixing plate (3) and the second fixing plate (4). The roller (8) is inclined. The outer surface and lower side of the roller (8) are provided with screen holes (9). The top of the box (1) is fixedly installed with a feeding hopper (11). The bottom end of the feeding hopper (11) is fixedly connected with a fixing sleeve (10). The higher end of the roller (8) is rotatably inserted into the inside of the fixing sleeve (10). Multiple guide blocks (15) are evenly fixed around the axis on both sides of the outer surface of the roller (8). A vibration component for striking the roller (8) is provided between the feeding hopper (11) and the second fixing plate (4). The vibration component slides with the guide block (15).

2. The vibrating screening device for cement powder according to claim 1, characterized in that: The vibration assembly includes a third fixed plate (16), a sliding shaft (17), a spring (18), a striking block (19), a connecting plate (20), and a connecting shaft (21). The third fixed plate (16) is fixedly installed on the opposite surface of the feeding hopper (11) and the second fixed plate (4). Multiple sliding shafts (17) are slidably installed on the upper limit of the third fixed plate (16). A striking block (19) is fixedly connected to the bottom end of each sliding shaft (17). The striking block (19) abuts against the outer surface of the roller (8). A connecting plate (20) is fixedly installed on the outer side of the multiple sliding shafts (17). A spring (18) is sleeved on the outer side of the sliding shafts (17). The two ends of the spring (18) are fixedly installed on the opposite surface of the third fixed plate (16) and the connecting plate (20). A connecting shaft (21) is fixedly connected to both ends of the connecting plate (20). The connecting shaft (21) slides with the guide block (15) on the same side.

3. The vibrating screening device for cement powder according to claim 1, characterized in that: A connecting plate is fixedly installed on the opposite surface of the feeding hopper (11) and the first fixed plate (3).

4. The vibrating screening device for cement powder according to claim 1, characterized in that: A gear ring (7) is fixedly installed on the higher side of the roller (8), a motor (5) is fixedly installed on the side wall of the first fixed plate (3), and a gear (6) is fixedly installed on the output shaft of the motor (5). The gear (6) meshes with the gear ring (7).

5. The vibrating screening device for cement powder according to claim 1, characterized in that: Two notches (12) are provided on the roller (8) at the position corresponding to the fixed sleeve (10), and the feeding hopper (11) is connected to the inside of the roller (8) through the notches (12).

6. The vibrating screening device for cement powder according to claim 1, characterized in that: A collection box (2) is slidably installed on the bottom inside the box (1), and a handle is fixedly installed on the side wall of the collection box (2).

7. The vibrating screening device for cement powder according to claim 1, characterized in that: Both ends of the roller (8) are rotatably mounted with fixed shafts (13), and the other ends of the two fixed shafts (13) are bolted to the first fixed plate (3) and the second fixed plate (4) respectively.

8. The vibrating screening device for cement powder according to claim 1, characterized in that: The vibration assembly includes a rotating shaft (22), a fixed block (23), and rotating rods (24); the rotating shaft (22) is rotatably mounted on the opposite surfaces of the feeding hopper (11) and the second fixed plate (4); multiple rotating rods (24) are fixedly mounted on the outside of the rotating shaft (22), and a striking block (19) is fixedly connected to the end of the rotating rod (24) away from the rotating shaft (22); fixed blocks (23) are fixedly mounted on both sides of the rotating shaft (22), and the fixed blocks (23) slide with the guide block (15) on the same side; torsion springs are fixedly connected to both ends of the rotating shaft (22), and the other ends of the two torsion springs are fixedly connected to the feeding hopper (11) and the second fixed plate (4) respectively.

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