Sand screening machine for constructional engineering
By incorporating a counter-rotating agitator inside the drum and external striking, the problem of insufficient sand separation in drum-type sand screening machines is solved, achieving a more efficient sand separation effect.
Patent Information
- Application Number
- CN202423257011.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-12-29
AI Technical Summary
Existing drum-type sand screening machines have a low filtration efficiency when the sand contains highly viscous impurities, and cannot fully disperse the sand, resulting in poor separation of qualified sand.
An agitator is installed inside the drum, rotating in the opposite direction to the drum. The agitator beats the drum via an external belt and works in conjunction with an auger to discharge material from the hopper, thereby improving the sand separation effect.
The sand inside the drum is effectively dispersed by the reverse rotation of the agitator and external impact, improving the filtration and separation efficiency and ensuring that the sand is fully separated and discharged smoothly.
Smart Images
Figure CN223959971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand screening machine technology, specifically a sand screening machine for construction engineering. Background Technology
[0002] Sand screening machines, also known as dryland sand screening vessels or sand and gravel separators, are sand and gravel separation equipment suitable for rivers, reservoirs, and coal yards. They are mechanical devices used to separate sand particles of different sizes and are usually equipped with a conveyor belt at the bottom. Among them, the drum-type sand screening machine is commonly used.
[0003] Existing drum-type sand screening machines mainly separate the sand inside by rotating the drum. However, if the sand contains impurities with high viscosity, the filtration effect of this rotation method is low, and it cannot fully disperse the sand inside the drum, thereby reducing its filtration and separation effect and causing qualified sand to be unable to be fully separated and filtered out. Utility Model Content
[0004] The purpose of this utility model is to provide a sand screening machine for construction engineering, so as to solve the problem mentioned in the background art that the sand inside the drum cannot be fully dispersed, thereby reducing its filtration and separation effect and causing qualified sand to be unable to be fully separated and filtered out.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand screening machine for construction engineering, comprising:
[0006] A frame, with a material box on top, and rollers rotatably connected inside the frame via bearings;
[0007] The feeding and mixing assembly includes a first motor, which is fixedly connected to the outer wall of the frame. The output end of the first motor is fixedly connected to a first main shaft, and an auger and a mixing paddle are connected to the outside of the first main shaft. The auger is located inside the material box, and the mixing paddle is located inside the drum.
[0008] A drive assembly is provided for driving the rotation of the drum and for external striking of the drum, wherein the rotation direction of the drum is opposite to the rotation direction of the agitator.
[0009] Preferably, the frame is further fixedly connected with two sets of baffles, which are located on both sides of the roller, and the baffles have a continuously bent structure.
[0010] Preferably, the outer wall of the frame is also fixedly connected to a discharge plate, and the discharge plate is located below the roller, and the discharge port of the material box is located inside the roller feed port.
[0011] Preferably, both ends of the first main shaft are rotatably connected to the frame via bearing seats, the length of the stirring paddle is less than the length of the drum, and the distance between the outer wall of the stirring paddle and the inner wall of the drum is no more than two centimeters.
[0012] Preferably, the drive assembly includes a second motor, which is fixedly connected to the outer wall of the frame. The output end of the second motor is fixedly connected to a second main shaft. A belt and a gear are fixedly connected to the outer wall of the second main shaft, and a gear ring meshes with the outside of the gear.
[0013] Preferably, both ends of the second main shaft are rotatably connected to the frame via bearing seats, and the axis of the second main shaft is parallel to the axis of the drum.
[0014] Preferably, at least five sets of belts are evenly distributed on the outside of the second main shaft, and the toothed ring is fixedly connected to the outer wall of the drum.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets a separate rotating stirring paddle inside the drum, so that the drum rotates and the stirring paddle rotates at the same time, and the rotation direction of the drum is opposite to that of the stirring paddle. Thus, the setting of the stirring paddle can effectively disperse the sand inside the drum, improve the separation effect of the device, and at the same time, the external belt beats the drum, which can effectively improve its filtration and separation efficiency. In addition, the auger at the bottom of the material box can make the material box discharge more smoothly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the roller axis structure of this utility model;
[0018] Figure 3 For the present utility model Figure 2 A magnified structural diagram of A in the middle;
[0019] Figure 4 This is a schematic diagram of the overall structure of the feeding and mixing assembly of this utility model;
[0020] Figure 5 This is a schematic diagram of the distribution structure of the drive components of this utility model.
[0021] In the diagram: 1. Frame; 11. Material bin; 12. Baffle; 13. Discharge plate; 14. Drum; 2. Feeding and mixing assembly; 21. First motor; 22. First main shaft; 23. Screw; 24. Mixing paddle; 3. Drive assembly; 31. Second motor; 32. Second main shaft; 33. Belt; 34. Gear; 35. Gear ring. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-5 One embodiment of this utility model is a sand screening machine for construction engineering, comprising:
[0024] The machine consists of a frame 1, a material box 11 on top of the frame 1, and a roller 14 rotatably connected inside the frame 1 via bearings; a feeding and mixing assembly 2, including a first motor 21, which is fixedly connected to the outer wall of the frame 1, and a first main shaft 22 fixedly connected to the output end of the first motor 21, with an auger 23 and a mixing paddle 24 connected to the outside of the first main shaft 22, the auger 23 being inside the material box 11 and the mixing paddle 24 being inside the roller 14; and a drive assembly 3, which is used to drive the rotation of the roller 14 and to strike the outside of the roller 14, with the rotation direction of the roller 14 opposite to that of the mixing paddle 24. By setting the roller 14 and the mixing paddle 24 in opposite directions, the rotation of the roller 14 separates the sand while the rotation of the mixing paddle 24 fully disperses the sand inside the roller 14, thereby improving the filtration and separation effect of the sand.
[0025] Furthermore, two sets of baffles 12 are fixedly connected inside the frame 1, and the two sets of baffles 12 are respectively located on both sides of the roller 14. The baffles 12 have a continuous bent structure. The baffles 12 are mainly used to protect the two sides of the roller 14 to prevent sand from splashing and ensure that the separated sand is discharged from the bottom of the roller 14, and then cooperates with the conveyor belt below to complete the conveying of the filtered sand.
[0026] Furthermore, the outer wall of the frame 1 is also fixedly connected to the discharge plate 13, and the discharge plate 13 is located below the roller 14. The discharge port of the material box 11 is located inside the feed port of the roller 14, so that the material discharged from the material box 11 can accurately enter the interior of the roller 14. At the same time, the setting of the auger 23 inside the material box 11 can ensure the smoothness of its feeding and avoid feeding blockage.
[0027] Furthermore, both ends of the first main shaft 22 are rotatably connected to the frame 1 through bearing seats. The length of the stirring paddle 24 is less than the length of the drum 14, and the distance between the outer wall of the stirring paddle 24 and the inner wall of the drum 14 is no more than two centimeters. By setting the stirring paddle 24, the sand inside the drum 14 can be stirred, so that it is fully dispersed, thereby improving its filtration and separation effect.
[0028] Furthermore, the drive assembly 3 includes a second motor 31, which is fixedly connected to the outer wall of the frame 1. The output end of the second motor 31 is fixedly connected to a second main shaft 32. A belt 33 and a gear 34 are fixedly connected to the outer wall of the second main shaft 32. A gear ring 35 meshes with the outer side of the gear 34. Both ends of the second main shaft 32 are rotatably connected to the frame 1 through bearing seats. The axis of the second main shaft 32 is parallel to the axis of the drum 14. At least five sets of belts 33 are evenly distributed on the outer side of the second main shaft 32. The gear ring 35 is fixedly connected to the outer wall of the drum 14. The second main shaft 32 is driven by the second motor 31 to rotate, and then the drum 14 is driven to rotate through the meshing of the gear 34 and the gear ring 35 to complete the separation of sand. At the same time, the belts 33 are driven to rotate, which knocks on the outer wall of the drum 14, causing the drum 14 to vibrate, thereby improving its filtration and separation effect.
[0029] Working Principle: The first motor 21 and the second motor 31 used in this application are both commercially available products. Their principles and connection methods are well-known to those skilled in the art and will not be described in detail here. When using this utility model, the first motor 21 and the second motor 31 are started first. Sand raw material is then added into the material box 11. The first motor 21 drives the first main shaft 22 and the auger 23 to rotate, so that the sand inside the material box 11 is added into the drum 14. The second motor 31 drives the second main shaft 32 to rotate, and the drum 14 is driven to rotate through the gear 34 and the gear ring 35. While the drum 14 is rotating, the sand is separated. At the same time, the first main shaft 22 drives the stirring paddle 24 to rotate in the opposite direction. With the cooperation of the drum 14 and the stirring paddle 24, the separated sand can be fully dispersed, thereby improving the separation effect. The separated sand falls to the bottom of the drum 14 through the guide of the baffle 12, and the sand remaining inside the drum 14 is discharged through the discharge plate 13.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A sand screening machine for construction work, characterized in that, Include: Frame (1), the upper part of the frame (1) is provided with a tank (11), and the inside of the frame (1) is rotatably connected with a roller (14) through a bearing; Feeding and stirring assembly (2), the feeding and stirring assembly (2) comprises a first motor (21), the first motor (21) is fixedly connected to the outer wall of the frame (1), the output end of the first motor (21) is fixedly connected with a first spindle (22), and the outside of the first spindle (22) is connected with an auger (23) and a stirring paddle (24), the auger (23) is in the inside of the tank (11), the stirring paddle (24) is in the inside of the roller (14); Drive assembly (3), the drive assembly (3) is used for the rotation drive of the roller (14) and the outside of the roller (14), and the rotation direction of the roller (14) is opposite to the rotation direction of the stirring paddle (24).
2. A sand screening machine for construction work as claimed in claim 1 wherein: The inside of the frame (1) is also fixedly connected with two groups of baffles (12), and the two groups of baffles (12) are respectively located on the two sides of the roller (14), the baffle (12) is in a continuous bending structure.
3. A sand screening machine for construction work as claimed in claim 1 wherein: The outer wall of the frame (1) is also fixedly connected with a discharge plate (13), and the discharge plate (13) is below the roller (14), and the discharge port of the tank (11) is inside the feeding port of the roller (14).
4. A sand screening machine for construction work as claimed in claim 1, wherein: Both ends of the first spindle (22) are rotatably connected with the frame (1) through a bearing seat, the length of the stirring paddle (24) is less than the length of the roller (14), and the distance between the outer wall of the stirring paddle (24) and the inner wall of the roller (14) is not greater than two centimeters.
5. A sand screening machine for construction work as claimed in claim 1, wherein: The drive assembly (3) comprises a second motor (31), the second motor (31) is fixedly connected to the outer wall of the frame (1), the output end of the second motor (31) is fixedly connected with a second spindle (32), the outer wall of the second spindle (32) is fixedly connected with a belt (33) and a gear (34), the outside of the gear (34) is engaged with a gear ring (35).
6. A sand screening machine for construction work as claimed in claim 5 wherein: Both ends of the second spindle (32) are rotatably connected with the frame (1) through a bearing seat, and the axis of the second spindle (32) is parallel to the axis of the roller (14).
7. A sand screening machine for construction work as claimed in claim 5 wherein: The outside of the second spindle (32) is uniformly distributed with not less than five groups of belts (33), and the gear ring (35) is fixedly connected to the outer wall of the roller (14).