Sand screening machine for building construction

Abstract

The utility model provides a building construction sand screening machine which comprises a box body, a transmission mechanism used for transmission of a screening plate is fixedly installed on one side of the box body, a cover body is fixedly installed on the top of the box body, a paving mechanism connected with the transmission mechanism is arranged in the cover body, and the bottom of the box body is fixedly connected with a partition plate. The top and bottom edges of the sieve plate are fixedly connected with the enclosure frame and the positioning plate respectively. According to the device, the screening plate is adopted for screening sand and stones, the sand and stones are screened through the screening plate moving back and forth, the sand and stones are driven by the screening plate to vibrate back and forth so as to avoid the problem that follow-up cleaning is inconvenient due to the fact that the sand and stones block meshes, and meanwhile the sand and stones can be spread through the stirring rod after being put; and meanwhile, the screening effect can be improved, the problem that small particles are vibrated to the two sides and cannot fall smoothly due to incomplete screening is solved, stable movement of the screening plate can be achieved, the use performance of the sand screening machine is improved, and continuous sand screening treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to a sand screening machine for construction. Background Art

[0002] Sand screening machine is a kind of sand and gravel separation equipment suitable for rivers, reservoirs, coal yards and other places. It consists of hull, frame, reducer, conveyor belt, rotary screen, engine or motor, etc. It has the characteristics of simple structure, economical and applicable, easy to operate, etc. The working principle of sand screening machine is to imitate the working principle of artificial sand screening using inclined screen. It adopts flat roller screen drum and ensures that the material flow can be continuously rolled and screened for more than five circles between the multi-circle spiral blades in the screen drum, so that the sand material can be repeatedly rolled and slid to be fully discrete and separated. This screening method avoids the incomplete screening and mixing caused by the mutual squeezing of large and small materials or the vibration of large materials supporting small materials caused by the inclined roller screen or inclined vibrating screen. Sand screening machine is mainly divided into drum sand screening machine, water-washed drum sand screening machine, vibrating screen sand screening machine, etc. Among them, the vibrating sand screening machine uses vibration to make the screen vibrate, thereby accelerating the screening of particle size materials; rotary vibration sand screening machine is suitable for grading and screening a variety of materials, and is widely used in various industries such as mining, building materials, coal, electric power, and metallurgy.

[0003] Sand screening machine is a device used for screening sand and gravel. When using existing sand screening machines, sand and gravel are piled together, which makes it difficult for small particles to fall quickly during screening, which leads to incomplete screening. In addition, gravel is easy to clog the mesh holes during screening, requiring regular cleaning, which reduces the performance of the sand screening machine. Utility Model Content

[0004] The utility model provides a construction sand screening machine in order to solve the technical problem that the screening effect of the sand screening machine is not thorough.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a construction sand screening machine, comprising:

[0007] A box body, a transmission mechanism for sieve plate transmission is fixedly installed on one side of the box body, a cover body is fixedly installed on the top of the box body, and a spreading mechanism connected to the transmission mechanism is arranged inside the cover body, the bottom of the box body is fixedly connected to the partition, and the partition is correspondingly arranged on both sides of the bottom of the sieve plate, the top and bottom edges of the sieve plate are respectively fixedly connected to the surrounding frame and the positioning plate, and the positioning plate is located between the partitions.

[0008] In the present technical solution, the transmission mechanism includes a gear box, which is fixedly installed on one side of the top of the box body. The top of the gear box is fixedly connected to the reducer and the drive motor respectively. The output shaft of the gear box is used to fix the output gear, and the drive motor is connected to the output gear through the gear box. The bottom edge of the output gear is movably connected to the screen plate through a connecting rod.

[0009] In the present technical solution, the paving mechanism includes a rotating shaft and a stirring shaft, both of which are rotatably connected to the cover body and the top of the box body, the bottom of the rotating shaft is fixedly connected to a transmission connection meshing with the output gear, the bottom of the stirring shaft is fixedly connected to the stirring rod, the stirring shaft and the top of the stirring rod are fixedly connected to a pulley located inside the cover body, and the pulleys are connected by belt transmission.

[0010] In the technical solution, a flow guide cover is fixedly installed on the top of the box body, the flow guide cover is correspondingly arranged above the sieve plate, and a stirring shaft and a stirring rod are arranged inside the flow guide cover.

[0011] In the technical solution, the bottom of the sieve plate is rotatably connected to pulleys on all four sides, and the pulleys are located on the top of the partition.

[0012] In the present technical solution, both sides of the frame are fixedly connected to the lower hopper, and the opening at the bottom of each lower hopper is located on the outside of the partition. The inner side of the partition is fitted with the positioning plate. The positioning plate is a square hollow structure and corresponds to the sieve in the middle of the sieve plate, and the middle of the sieve is a raised structure.

[0013] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0014] The positive and progressive effects of the utility model are:

[0015] The above-mentioned construction sand screening machine adopts a screen plate to screen sand and gravel, and realizes sand and gravel screening processing by moving the screen plate back and forth. The screen plate drives the sand and gravel to vibrate back and forth to avoid clogging the mesh holes and causing inconvenience in subsequent cleaning. At the same time, after the sand and gravel are put in, the stirring rod can be used to spread the sand and gravel so that it can be evenly distributed on the surface of the screen for subsequent rapid screening processing. At the same time, the screening effect can be improved to avoid the problem that incomplete screening causes smaller particles to vibrate to both sides and cannot fall smoothly. The screen plate can also be moved stably, thereby improving the performance of the sand screening machine and facilitating continuous sand screening processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 2 This is a front view structural schematic diagram of the utility model.

[0018] Figure 3 It is a side structural schematic diagram of the utility model.

[0019] Description of Reference Numerals

[0020] 1. Box body; 2. Gear box; 3. Speed ​​reducer; 4. Driving motor; 5. Output gear; 6. Connecting rod; 7. Screen plate; 8. Cover body; 9. Rotating shaft; 10. Agitating shaft; 11. Transmission gear; 12. Pulley; 13. Belt; 14. Agitating rod; 15. Guide cover; 16. Frame; 17. Pulley; 18. Positioning plate; 19. Partition plate; 20. Lower hopper. DETAILED DESCRIPTION

[0021] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0022] like Figure 1-3 As shown, the construction sand screening machine comprises:

[0023] A box body 1, a transmission mechanism for driving the sieve plate 7 is fixedly installed on one side of the box body 1, a cover body 8 is fixedly installed on the top of the box body 1, and a spreading mechanism connected to the transmission mechanism is provided inside the cover body 8, the bottom of the box body 1 is fixedly connected to the partition 19, and the partition 19 is correspondingly arranged on both sides of the bottom of the sieve plate 7, the top and bottom edges of the sieve plate 7 are respectively fixedly connected to the frame 16 and the positioning plate 18, and the positioning plate 18 is located between the partitions 19.

[0024] In the present technical solution, the transmission mechanism includes a gearbox 2, which is fixedly installed on one side of the top of the box body 1. The top of the gearbox 2 is fixedly connected to the reducer 3 and the drive motor 4 respectively. The output shaft of the gearbox 2 is used to be fixedly connected to the output gear 5, and the drive motor 4 is transmission-connected to the output gear 5 through the gearbox 2. The bottom edge of the output gear 5 is movably connected to the sieve plate 7 through the connecting rod 6. When the drive motor 4 is started, it drives the output gear 5 to rotate inside the gearbox 2 through the reducer 3. When the output gear 5 rotates, it drives the connecting rod 6 to swing, and then pulls the sieve plate 7 to move above the partition 19 through the connecting rod 6.

[0025] In the present technical solution, the paving mechanism includes a rotating shaft 9 and a stirring shaft 10, both of which are rotatably connected to the cover body 8 and the top of the box body 1, and the bottom of the rotating shaft 9 is fixedly connected with a transmission connection meshing with the output gear 5, and the bottom of the stirring shaft 10 is fixedly connected to the stirring rod 14, and the tops of the stirring shaft 10 and the stirring rod 14 are fixedly connected with a pulley 12 located inside the cover body 8, and the pulleys 12 are connected by a belt 13. When the output gear 5 rotates, it drives the transmission gear 11 to rotate synchronously. The cooperation of the pulley 12 and the belt 13 enables the rotating shaft 9 to drive the stirring shaft 10 to rotate synchronously, and then drives the stirring rod 14 to rotate to spread the sand and gravel to facilitate subsequent thorough screening.

[0026] In the present technical solution, a guide hood 15 is fixedly installed on the top of the box body 1. The guide hood 15 is correspondingly arranged above the sieve plate 7, and a stirring shaft 10 and a stirring rod 14 are arranged inside the guide hood 15. The guide hood 15 is used to put sand and gravel so that it falls onto the sieve plate 7 for screening, and the stirring rod 14 spreads it to improve the screening effect.

[0027] In the present technical solution, the bottom of the sieve plate 7 is rotatably connected to the pulley 17 on all sides. The pulley 17 is located on the top of the partition 19. The pulley 17 is used for the rapid movement of the sieve plate 7. At the same time, the positioning plate 18 limits the position of the sieve plate 7 to achieve stable back and forth movement.

[0028] In the present technical solution, both sides of the enclosure 16 are fixedly connected to the lower hopper 20, and the openings at the bottom of each lower hopper 20 are located on the outside of the partition 19. The inner side of the partition 19 is fitted with the positioning plate 18. The positioning plate 18 is a square hollow structure and corresponds to the sieve in the middle of the sieve plate 7, and the middle part of the sieve is a raised structure. The enclosure 16 is used to prevent sand and gravel from falling, and discharges larger particles of sand and gravel through the lower hopper 20 to achieve the classification function.

[0029] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A construction sand screening machine, characterized in that: include: A box body (1), a transmission mechanism for driving a sieve plate (7) is fixedly mounted on one side of the box body (1), a cover body (8) is fixedly mounted on the top of the box body (1), and a spreading mechanism connected to the transmission mechanism is arranged inside the cover body (8), the bottom of the box body (1) is fixedly connected to a partition (19), and the partition (19) is correspondingly arranged on both sides of the bottom of the sieve plate (7), the top and bottom edges of the sieve plate (7) are respectively fixedly connected to a surrounding frame (16) and a positioning plate (18), and the positioning plate (18) is located between the partitions (19).

2. The construction sand screening machine according to claim 1, characterized in that: The transmission mechanism comprises a gear box (2), the gear box (2) being fixedly mounted on one side of the top of the housing (1), the top of the gear box (2) being fixedly connected to a reducer (3) and a drive motor (4) respectively, the output shaft of the gear box (2) being used for fixedly connecting an output gear (5), and the drive motor (4) being transmission-connected to the output gear (5) through the gear box (2), and the bottom edge of the output gear (5) being movably connected to a screen plate (7) through a connecting rod (6).

3. The construction sand screening machine according to claim 1, characterized in that: The paving mechanism comprises a rotating shaft (9) and a stirring shaft (10), wherein the rotating shaft (9) and the stirring shaft (10) are both rotatably connected to the cover body (8) and the top of the box body (1), the bottom of the rotating shaft (9) is fixedly connected to a transmission connection meshing with the output gear (5), the bottom of the stirring shaft (10) is fixedly connected to a stirring rod (14), and the tops of the stirring shaft (10) and the stirring rod (14) are fixedly connected to a pulley (12) located inside the cover body (8), and the pulleys (12) are connected to each other through a belt (13) for transmission.

4. The construction sand screening machine according to claim 1, characterized in that: A flow guide cover (15) is fixedly mounted on the top of the box body (1), the flow guide cover (15) is arranged correspondingly above the sieve plate (7), and a stirring shaft (10) and a stirring rod (14) are arranged inside the flow guide cover (15).

5. The construction sand screening machine according to claim 1, characterized in that: The bottom of the sieve plate (7) is rotatably connected to the pulley (17) on all sides, and the pulley (17) is located on the top of the partition (19).

6. The construction sand screening machine according to claim 1, characterized in that: Both sides of the enclosure (16) are fixedly connected to the lower hopper (20), and the opening at the bottom of each lower hopper (20) is located on the outside of the partition (19). The inner side of the partition (19) is fitted and connected to the positioning plate (18). The positioning plate (18) is a square hollow structure and corresponds to the screen in the middle of the screen plate (7), and the middle of the screen is a raised structure.

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