Gravel screening device for constructional engineering

Abstract

The gravel screening device for the constructional engineering comprises a screening machine box, a feeding frame is fixedly installed on the left side face of the screening machine box, a feeding belt is arranged in the feeding frame, the outer surface of the feeding belt is fixedly connected with feeding plates which are arranged at equal intervals, the outer surface of the feeding frame is fixedly connected with a feeding hopper, and the feeding hopper is fixedly connected with the screening machine box. Two sets of bearings are fixedly embedded in the inner wall of the feeding frame, and a transmission roller is fixedly installed on the inner ring of each set of bearings. According to the device, a feeding frame is arranged on one side of the screening machine box, a feeding hopper is arranged at the bottom of the feeding frame, a feeding belt is arranged in the feeding frame, a driving motor drives a transmission roller to rotate, a feeding plate on the feeding belt conveys gravel in the feeding hopper, and the gravel enters the screening machine box through the inertia effect at the top end of the feeding frame; and the first-stage screen and the second-stage screen are arranged in the screening machine box, the gravel materials are screened in a classified mode, and therefore the use flexibility of the screening device is improved.

Description

Technical Field

[0001] The utility model relates to the field of building sand and gravel screening, in particular to a sand and gravel screening device for construction engineering. Background Art

[0002] Sand and gravel is a common building material, which is widely used in construction and infrastructure construction. Sand and gravel is a granular material formed by crushing natural ores or rocks. It is mainly composed of sand, gravel and bonding materials. It can be naturally formed or prepared by excavating and crushing large rocks. Sand and gravel is one of the main ingredients of concrete. By mixing cement, sand, gravel and water, it can form a solid concrete for the foundation, wall, floor and other structures of buildings. Sand and gravel screening is the process of separating the raw sand and gravel materials through a screen or sieve holes to classify the materials according to the particle size. This process can adjust the size and quality of the particles as needed to meet the requirements of specific projects.

[0003] According to Chinese patent number CN216910946U, a sand and gravel screening device for construction engineering includes a screening box and a feed port fixedly connected to the top of the screening box, and also includes a screening component located in the screening box and a supporting component fixedly connected to the bottom of the screening box. In the above patent scheme, sand and gravel are screened by a multi-stage screen arranged inside the screening box, but it is not convenient to transport the sand and gravel to the feed port during the screening process, resulting in inconvenience in screening sand and gravel, affecting the screening efficiency of sand and gravel. For this reason, we propose a sand and gravel screening device for construction engineering to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sand and gravel screening device for construction engineering to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sand and gravel screening device for construction engineering comprises a screening case, a loading rack is fixedly installed on the left side of the screening case, a loading belt is arranged inside the loading rack, the outer surface of the loading belt is fixedly connected with loading plates arranged at equal distances, the outer surface of the loading rack is fixedly connected with a loading hopper, two groups of bearings are fixedly inlaid on the inner wall of the loading rack, a transmission roller is fixedly installed on the inner ring of each group of the bearings, the outer surfaces of the two transmission rollers are both transmission-connected to the loading belt, a driving motor is fixedly installed on the back of the loading rack, the output end of the driving motor is connected to one end of one of the transmission rollers, a primary screen and a secondary screen are respectively fixedly connected to the inside of the screening case, a vibration motor is commonly fixedly installed on the side where the primary screen and the secondary screen are close to each other, and a feed port is provided on the upper surface of the screening case.

[0007] In a further embodiment, two connecting plates are fixedly connected to the left side of the screening box, and the left end of each connecting plate is fixedly connected to the right side of the loading rack.

[0008] In a further embodiment, two groups of supporting legs are fixedly connected to the bottom surface of the screening chassis, a fixing plate is fixedly connected to the bottom end of each group of supporting legs, and two fixing holes are provided on the upper surface of each fixing plate.

[0009] In a further embodiment, a material guide plate is fixedly connected to the inner wall of the screening box, a discharge pipe is fixedly connected to the front of the screening box, and a primary discharge pipe and a secondary discharge pipe are fixedly connected to the back of the screening box.

[0010] In a further embodiment, a dust cover is fixedly connected to the upper surface of the screening box, a water pump is fixedly installed on the upper surface of the dust cover, an input end of the water pump is fixedly connected to a water supply pipe, a plurality of atomizing nozzles are fixedly installed on the inner wall of the dust cover, an output end of the water pump is connected to the plurality of atomizing nozzles through a pipe, and a display window is provided on the right side of the dust cover.

[0011] In a further embodiment, a control switch is fixedly mounted on the right side of the screening box, and the control switch is electrically connected to the water pump, the drive motor and the vibration motor respectively through wires.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is provided with a loading rack on one side of a screening case, a loading hopper at the bottom of the loading rack, a loading belt inside the loading rack, and a driving motor drives a transmission roller to rotate, so that a loading plate on the loading belt conveys sand and gravel in the loading hopper, and the sand and gravel enter the screening case through inertia at the top of the loading rack, and a primary screen and a secondary screen are provided in the screening case to grade and screen the sand and gravel, thereby improving the flexibility of the screening device and solving the problem that the existing device is not convenient for conveying the sand and gravel to the feed port during the screening process, resulting in inconvenience in sand and gravel screening and affecting the sand and gravel screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a sand and gravel screening device for construction projects.

[0015] Figure 2 This is a top-down cross-sectional view of the loading rack in a sand and gravel screening device for construction projects.

[0016] Figure 3 This is a front cross-sectional view of the screening box in the sand and gravel screening device used in construction projects.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of a dust cover in a sand and gravel screening device for construction projects from a side perspective.

[0018] In the figure: 1. screening box; 2. supporting legs; 3. control switch; 4. display window; 5. water supply pipe; 6. water pump; 7. dust cover; 8. feeding belt; 9. feeding plate; 10. feeding hopper; 11. feeding rack; 12. connecting plate; 13. discharge pipe; 14. fixing plate; 15. fixing hole; 16. driving motor; 17. transmission roller; 18. bearing; 19. feeding port; 20. vibration motor; 21. secondary screen; 22. primary screen; 23. primary discharge pipe; 24. secondary discharge pipe; 25. guide plate; 26. atomizing nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 In the utility model, a sand and gravel screening device for construction engineering comprises a screening chassis 1, a loading rack 11 is fixedly installed on the left side of the screening chassis 1, a loading belt 8 is arranged inside the loading rack 11, and a loading plate 9 arranged at equal distances is fixedly connected to the outer surface of the loading belt 8, and a loading hopper 10 is fixedly connected to the outer surface of the loading rack 11, and two groups of bearings 18 are fixedly inlaid on the inner wall of the loading rack 11, and a transmission roller 17 is fixedly installed on the inner ring of each group of bearings 18, and the outer surfaces of the two transmission rollers 17 are both transmission-connected to the feeding belt 8, and a driving motor 16 is fixedly installed on the back of the loading rack 11, and the output end of the driving motor 16 is connected to one end of one of the transmission rollers 17, and a primary screen 22 and a secondary screen 21 are fixedly connected inside the screening chassis 1, respectively, and a vibration motor 20 is fixedly installed on a side of the primary screen 22 and the secondary screen 21 close to each other, and a feeding port 19 is opened on the upper surface of the screening chassis 1.

[0021] Two connecting plates 12 are fixedly connected to the left side of the screening chassis 1, and the left end of each connecting plate 12 is fixedly connected to the right side of the loading rack 11. The connection between the connecting plates 12 and the loading rack 11 can ensure the stability of the loading rack 11. Two groups of supporting legs 2 are fixedly connected to the bottom surface of the screening chassis 1, and the bottom end of each group of supporting legs 2 is fixedly connected to a fixing plate 14. Two fixing holes 15 are provided on the upper surface of each fixing plate 14. The screening device can be conveniently fixed by cooperating with the fixing plate 14 at the bottom of the supporting leg 2.

[0022] The inner wall of the screening box 1 is fixedly connected with a material guide plate 25, the front of the screening box 1 is fixedly connected with a discharge pipe 13, and the back of the screening box 1 is respectively fixedly connected with a primary discharge pipe 23 and a secondary discharge pipe 24. The discharge pipe 13 is provided on both sides with the primary discharge pipe 23 and the secondary discharge pipe 24, respectively, so that qualified materials can be separated from unqualified materials. A dust cover 7 is fixedly connected to the upper surface of the screening box 1, and a water pump 6 is fixedly installed on the upper surface of the dust cover 7. The input end of the water pump 6 is fixedly connected with a water supply pipe 5. A plurality of atomizing nozzles 26 are fixedly mounted on the inner wall of the dust cover 7, and the output end of the water pump 6 is connected to the plurality of atomizing nozzles 26 through a pipeline. A display window 4 is provided on the right side of the dust cover 7. The water pump 6 cooperates with the atomizing nozzles 26 to generate water mist to reduce dust generated on the top of the screening chassis 1. A control switch 3 is fixedly mounted on the right side of the screening chassis 1. The control switch 3 is electrically connected to the water pump 6, the drive motor 16 and the vibration motor 20 through wires, and the control switch 3 facilitates the control of the screening device.

[0023] The working principle of the utility model is:

[0024] When in use, first fix the screening device in the use position through the fixing plate 14 at the bottom end of the supporting leg 2, turn on the power of the screening device, start the screening device, place the sand and gravel in the upper hopper 10, and the driving motor 16 on the loading frame 11 drives the transmission roller 17 to rotate, so that the transmission roller 17 cooperates with the feeding belt 8 for transmission. The feeding belt 8 drives the sand and gravel to rise under the action of the feeding plate 9, and enters the screening box 1 through the feed port 19. The vibration motor 20 is used to cooperate with the primary screen 22 and the secondary screen 21 to grade and screen the sand and gravel, so that different grades of sand and gravel are discharged respectively through the discharge pipe 13, the primary discharge pipe 23 and the secondary discharge pipe 24.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sand and gravel screening device for construction engineering, characterized in that: The invention comprises a screening machine box (1), a loading rack (11) is fixedly installed on the left side of the screening machine box (1), a loading belt (8) is arranged inside the loading rack (11), the outer surface of the loading belt (8) is fixedly connected to loading plates (9) arranged at equal distances, the outer surface of the loading rack (11) is fixedly connected to a loading hopper (10), and two groups of bearings (18) are fixedly inlaid on the inner wall of the loading rack (11), and the inner ring of each group of the bearings (18) is fixedly installed with a transmission roller (17), and the two transmission rollers (17) are fixedly installed with a transmission roller (17). The outer surfaces are all connected to the feeding belt (8) in a transmission manner. A driving motor (16) is fixedly installed on the back of the feeding frame (11). The output end of the driving motor (16) is connected to one end of one of the driving rollers (17). The interior of the screening box (1) is respectively fixedly connected with a primary screen (22) and a secondary screen (21). A vibration motor (20) is fixedly installed on a side where the primary screen (22) and the secondary screen (21) are close to each other. A feeding port (19) is opened on the upper surface of the screening box (1).

2. A sand and gravel screening device for construction engineering according to claim 1, characterized in that: Two connecting plates (12) are fixedly connected to the left side of the screening box (1), and the left end of each connecting plate (12) is fixedly connected to the right side of the loading rack (11).

3. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: Two groups of support legs (2) are fixedly connected to the bottom surface of the screening box (1), the bottom end of each group of support legs (2) is fixedly connected to a fixing plate (14), and the upper surface of each fixing plate (14) is provided with two fixing holes (15).

4. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: A material guide plate (25) is fixedly connected to the inner wall of the screening box (1), a material discharge pipe (13) is fixedly connected to the front of the screening box (1), and a primary discharge pipe (23) and a secondary discharge pipe (24) are fixedly connected to the back of the screening box (1).

5. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: A dust cover (7) is fixedly connected to the upper surface of the screening box (1), a water pump (6) is fixedly installed on the upper surface of the dust cover (7), an input end of the water pump (6) is fixedly connected to a water supply pipe (5), a plurality of atomizing nozzles (26) are fixedly installed on the inner wall of the dust cover (7), an output end of the water pump (6) is connected to the plurality of atomizing nozzles (26) via a pipeline, and a display window (4) is provided on the right side of the dust cover (7).

6. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: A control switch (3) is fixedly mounted on the right side of the screening box (1), and the control switch (3) is electrically connected to the water pump (6), the drive motor (16) and the vibration motor (20) respectively through wires.

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