Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering, which comprises a bearing shell, four first bearings are embedded on the outer surface of the bearing shell, the inner rings of every two first bearings are fixedly connected with transmission rods, the outer surface of each transmission rod is fixedly connected with two transmission wheels, a screening drum is arranged in the bearing shell, and the screening drum is fixedly connected with the transmission wheels. The upper surface of the bearing shell is fixedly connected with two supporting frames. According to the device, an extrusion plate is driven by a reciprocating motor to circularly move, caked sand is extruded and crushed by the extrusion plate when moving downwards, sand screening is more thorough, the sand conveying rate can be adjusted by moving a baffle, the sand is prevented from blocking screening holes due to the fact that a material layer is too thick, a screening drum is cleaned through rotation of a dredging brush, and the screening efficiency is improved. The screen holes of the screen drum are kept smooth, the screening efficiency is improved, the spiral plate is installed in the screen drum, the rolling time of sand in the screen drum is prolonged, screening is more thorough, and waste of fine sand is reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction engineering technology, and in particular to a sand screening machine for construction engineering. Background Technology

[0002] In construction projects, sand is one of the building materials, and its quality directly affects the safety and durability of the building. When using sand, it is necessary to screen it according to the application scenario to ensure its quality.

[0003] Currently, workers typically use drum-type sand screening machines to screen sand. These machines separate sand by rotating and maintaining a certain tilt angle. However, when the sand has a high moisture content, it will clump together, preventing fine sand from passing through the screen holes and resulting in sand waste. To address this issue, we propose a sand screening machine for construction projects. Utility Model Content

[0004] The purpose of this utility model is to provide a sand screening machine for construction engineering to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sand screening machine for construction engineering includes a load-bearing shell. Four first bearings are embedded on the outer surface of the load-bearing shell. A transmission rod is fixedly connected to the inner ring of every two first bearings. Two transmission wheels are fixedly connected to the outer surface of each transmission rod. A screen cylinder is provided inside the load-bearing shell. Two support frames are fixedly connected to the upper surface of the load-bearing shell. An extrusion shell is fixedly connected to the side of the two support frames that are close to each other. A reciprocating motor is fixedly connected to the inner wall of the extrusion shell. An extrusion plate is fixedly connected to the output end of the reciprocating motor. A spiral plate is fixedly connected to the inner wall of the screen cylinder.

[0007] In a further embodiment, pulleys are fixedly connected to the right side of both transmission rods, and a transmission belt is sleeved on the outer surface of both pulleys.

[0008] In a further embodiment, a protective shell is fixedly connected to the right side of the load-bearing shell, and a geared motor is fixedly connected to the inner side wall of the protective shell. The output end of the geared motor is connected to the right side of one of the pulleys.

[0009] In a further embodiment, two slide rods are fixedly connected to the inner wall of the extrusion shell, and the outer surface of each slide rod is slidably connected to the interior of the extrusion plate.

[0010] In a further embodiment, two U-shaped plates are fixedly connected to the upper surface of the load-bearing shell, and a second bearing is embedded on the outer surface of each U-shaped plate.

[0011] In a further embodiment, the inner rings of the two second bearings are jointly fixedly connected with a cleaning brush.

[0012] In a further embodiment, the inner wall of the extrusion shell is provided with a groove, the inner wall of the groove is slidably connected with a baffle, and the bottom surface of the extrusion shell is fixedly connected to a feeding pipe.

[0013] In a further embodiment, a scrap plate is fixedly connected to the inside of the load-bearing shell, and an inclined plate is fixedly connected to the inside of the load-bearing shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device uses a reciprocating motor to drive the extrusion plate in a cyclical movement. Clumped sand is crushed by the extrusion plate as it moves downwards, making sand screening more thorough. By moving the baffle, the sand conveying speed can be adjusted to prevent sand from clogging the screen holes due to excessive material layer. The rotating unblocking brush cleans the screen cylinder, keeping the screen holes unobstructed and improving screening efficiency. By installing a spiral plate inside the screen cylinder, the time the sand rolls in the screen cylinder is extended, making screening more thorough and reducing the waste of fine sand. Attached Figure Description

[0016] Figure 1 This is a front-view 3D structural diagram of a sand screening machine used in construction engineering.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a sand screening machine used in construction engineering.

[0018] Figure 3 This is a top view schematic diagram of a sand screening machine used in construction engineering.

[0019] Figure 4 This is a top-section schematic diagram of a sand screening machine used in construction engineering.

[0020] Figure 5 This is a side view schematic diagram of a sand screening machine used in construction engineering.

[0021] In the diagram: 1. Load-bearing shell; 2. First bearing; 3. Transmission rod; 4. Transmission wheel; 5. Screen cylinder; 6. Support frame; 7. Extrusion shell; 8. Pulley; 9. Transmission belt; 10. Protective shell; 11. Gear motor; 12. Spiral plate; 13. U-shaped plate; 14. Second bearing; 15. Unclogging brush; 16. Slide rod; 17. Extrusion plate; 18. Reciprocating motor; 19. Baffle; 20. Inclined plate; 21. Waste plate; 22. Feeding pipe; 23. Slide chute. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Please see Figure 1-5In this utility model, a sand screening machine for construction engineering includes a load-bearing shell 1. Four first bearings 2 are inlaid on the outer surface of the load-bearing shell 1. A transmission rod 3 is fixedly connected to the inner ring of every two first bearings 2. Two transmission wheels 4 are fixedly connected to the outer surface of each transmission rod 3. A screen cylinder is provided inside the load-bearing shell. Two support frames 6 are fixedly connected to the upper surface of the load-bearing shell 1. An extrusion shell 7 is fixedly connected to the side of the two support frames 6 that is close to each other. A reciprocating motor 18 is fixedly connected to the inner wall of the extrusion shell 7. The reciprocating motor 18... An extrusion plate 17 is fixedly connected to the output end, and a spiral plate 12 is fixedly connected to the inner wall of the screen cylinder 5. Each drive wheel 4 is in contact with the screen cylinder 5. When the drive wheel 4 rotates, it will drive the screen cylinder 5 to rotate, thereby screening the sand in the screen cylinder 5. By installing the spiral plate 12 in the screen cylinder 5, the screening time of the sand in the screen cylinder 5 can be extended, making the screening more thorough. The extrusion plate 17 is driven to move in a cycle by the reciprocating motor 18. When the clump of sand moves downward, it is crushed by the extrusion plate 17, making the sand screening more thorough.

[0026] Both transmission rods 3 are fixedly connected to the right side of pulleys 8, and the outer surfaces of the two pulleys 8 are fitted with a transmission belt 9. The right side of the load-bearing shell 1 is fixedly connected to a protective shell 10, and the inner wall of the protective shell 10 is fixedly connected to a reduction motor 11. The output end of the reduction motor 11 is connected to the right side of one of the pulleys 8. The inner wall of the extrusion shell 7 is fixedly connected to two slide rods 16, and the outer surface of each slide rod 16 is slidably connected to the inside of the extrusion plate 17. The reduction motor 11 drives the pulleys 8 to rotate, and with the transmission belt 9, the two pulleys 8 and the transmission rods 3 can rotate synchronously. By setting the slide rods 16, the weight of the sand borne by the extrusion plate 17 can be distributed.

[0027] Two U-shaped plates 13 are fixedly connected to the upper surface of the load-bearing shell 1. A second bearing 14 is embedded in the outer surface of each U-shaped plate 13. The inner rings of the two second bearings 14 are fixedly connected to a clearing brush 15. A groove 23 is opened on the inner side wall of the extrusion shell 7. A baffle 19 is slidably connected to the inner side wall of the groove 23. A feeding pipe 22 is fixedly connected to the bottom surface of the extrusion shell 7. A waste plate 21 is fixedly connected to the inside of the load-bearing shell 1. An inclined plate 20 is fixedly connected to the inside of the load-bearing shell 1. The clearing brush 15 in contact with the screen cylinder 5 is rotated by the screen cylinder 5. The rotation of the clearing brush 15 will clean the screen holes of the screen cylinder 5 and keep the screen holes unobstructed. By moving the baffle 19, the sand conveying rate can be adjusted to prevent the sand from clogging the screen holes due to the material layer being too thick.

[0028] The working principle of this utility model is as follows:

[0029] When using this device, the worker pours sand into the extrusion shell 7, turns on the reciprocating motor 18 to drive the extrusion plate 17 to move in a cycle, and crushes the clumps of sand. The baffle 19 is moved to adjust the speed at which the sand enters the feeding pipe 22. The reduction motor 11 is turned on to drive the pulley 8 to rotate. With the help of the transmission belt 9, the two pulleys 8 drive the transmission rod 3 and the transmission wheel 4 to rotate synchronously. Through the rotation of the pulley 8, the sand in the screen cylinder 5 moves along the spiral plate 12. The rotation of the screen cylinder 5 will cause the unblocking brush 15 in contact with it to rotate. The rotation of the unblocking brush 15 cleans the screen holes of the screen cylinder 5. Finally, the coarse material is discharged from the waste plate 21, and the fine material is discharged from the inclined plate 20 through the holes of the screen cylinder 5.

[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.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sand screening machine for construction engineering, characterized in that: The system includes a load-bearing shell (1), on the outer surface of which four first bearings (2) are inlaid. A transmission rod (3) is fixedly connected to the inner ring of each pair of first bearings (2). Two transmission wheels (4) are fixedly connected to the outer surface of each transmission rod (3). A sieve cylinder (5) is provided inside the load-bearing shell (1). Two support frames (6) are fixedly connected to the upper surface of the load-bearing shell (1). An extrusion shell (7) is fixedly connected to the side of the two support frames (6) that are close to each other. A reciprocating motor (18) is fixedly connected to the inner wall of the extrusion shell (7). An extrusion plate (17) is fixedly connected to the output end of the reciprocating motor (18). A spiral plate (12) is fixedly connected to the inner wall of the sieve cylinder (5).

2. The sand screening machine for construction engineering according to claim 1, characterized in that: Both of the transmission rods (3) are fixedly connected to the right side of the pulleys (8), and the outer surfaces of the two pulleys (8) are fitted with a transmission belt (9).

3. A sand screening machine for construction engineering according to claim 1, characterized in that: A protective shell (10) is fixedly connected to the right side of the load-bearing shell (1), and a reduction motor (11) is fixedly connected to the inner side wall of the protective shell (10). The output end of the reduction motor (11) is connected to the right side of one of the pulleys (8).

4. A sand screening machine for construction engineering according to claim 1, characterized in that: The inner wall of the extrusion shell (7) is fixedly connected to two slide rods (16), and the outer surface of each slide rod (16) is slidably connected to the inside of the extrusion plate (17).

5. A sand screening machine for construction engineering according to claim 1, characterized in that: The upper surface of the load-bearing shell (1) is fixedly connected to two U-shaped plates (13), and the outer surface of each U-shaped plate (13) is inlaid with a second bearing (14).

6. A sand screening machine for construction engineering according to claim 5, characterized in that: The inner rings of the two second bearings (14) are jointly fixedly connected to a cleaning brush (15).

7. A sand screening machine for construction engineering according to claim 1, characterized in that: The inner wall of the extrusion shell (7) is provided with a sliding groove (23), and a baffle (19) is slidably connected to the inner wall of the sliding groove (23). The bottom surface of the extrusion shell (7) is fixedly connected to a feeding pipe (22).

8. A sand screening machine for construction engineering according to claim 1, characterized in that: The load-bearing shell (1) is fixedly connected to a scrap plate (21), and the load-bearing shell (1) is fixedly connected to an inclined plate (20).

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