Gravel vibration screening machine

Abstract

The utility model relates to the technical field of building construction equipment, and discloses a gravel vibration screening machine which comprises a machine body, sliding rails are fixedly connected to the two sides of the inner wall of the machine body, sliding blocks are slidably connected to the interiors of the sliding rails, springs are fixedly connected to the bottoms of the sliding blocks, and balancing weights are fixedly connected to the bottoms of the springs. A screening plate is fixedly connected to one side of each sliding block, rectangular grooves are formed in the two sides of the interior of the machine body, a cover plate is in lap joint with the interior of the machine body, screw rods are fixedly connected to the two sides of the cover plate, nuts are in threaded connection with the outer portions of the screw rods, and vibration motors are fixedly installed on the two sides of the bottom of the cover plate. Compared with the prior art, the sand screening machine has the following advantages and effects that the interior of the machine body is covered through the cover plate, flying dust is prevented from drifting away, the floating flying dust is isolated through the dustproof net, dust falling treatment is conducted on the flying dust again, the sand screening effect is good, and the dust falling screening effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and in particular to a sand and gravel vibrating screen. Background Technology

[0002] Vibrating screens are used in construction because the main materials used are sand and gravel, and the requirements for different cements and sand and gravel are relatively different. In the process of bridge construction, there are strict regulations on the coarseness, size and content of sand and gravel in cement. The selection of sand and gravel generally requires sorting, so vibrating screens are needed to remove excessively large sand and gravel, leaving refined sand and gravel of basically the same size.

[0003] In the prior art, Chinese Patent Publication No. CN218637860U discloses a continuous vibrating screen for sand and gravel, including a housing. A first screen is fixedly connected to the upper end of the inner cavity of the housing, and a second screen is fixedly connected to the inner cavity of the housing below the first screen. Sliding grooves are provided on both the front and back of the housing, and fixed plates are fixedly connected to both sides of the upper end of the front of the housing. This continuous vibrating screen for sand and gravel uses a connecting plate to drive a scraper to reciprocate at the bottom of the first and second screens. This allows the scraper to clean the stones blocked in the screen holes of the first and second screens during its movement. This solves the problem of sand and gravel clogging the screen holes and causing screen damage during use. Once clogging occurs, the screening space is reduced due to the clogging, and the wear on the screen components due to the clogging prevents the stones from being completely screened, resulting in uneven output particle size and reduced sand and gravel screening efficiency.

[0004] However, existing sand and gravel vibrating screens generally screen sand and gravel in an exposed state. During the screening process, the dust generated will be scattered, which not only pollutes the environment but also affects the surrounding construction. Therefore, the above problems need to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a sand and gravel vibrating screen that can reduce dust generation when screening sand and gravel.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sand and gravel vibrating screen includes a machine body, with slide rails fixedly connected to both sides of the inner wall of the machine body, a slider slidably connected inside the slide rails, a spring fixedly connected to the bottom of the slider, a counterweight fixedly connected to the bottom of the spring, a screening plate fixedly connected to one side of the slider, rectangular grooves opened on both sides of the inner wall of the machine body, a cover plate overlapping inside the machine body, screws fixedly connected to both sides of the cover plate, nuts threaded onto the outside of the screws, a vibrating motor fixedly installed on both sides of the bottom of the cover plate, excitation blocks fixedly connected to both sides of the top of the screening plate, a screening screen fixedly connected to the center inside the screening plate, and mounting blocks fixedly connected to both sides of the bottom of the cover plate, with a dustproof net snapped into the inside of the mounting block.

[0007] By adopting the above technical solution, the slider is installed inside the machine body via a slide rail. A counterweight and slider are supported by a spring. The counterweight is tightly attached to the inner bottom wall of the slide rail to ensure the stability of the slider during movement. At this time, the screening plate will cover the inside of the machine body, and the cover plate will overlap the inside of the machine body. The screw will extend into the rectangular groove, and the cover plate will move inside the machine body. The vibration motor at the bottom of the cover plate will extend into the exciter block at the top of the screening plate. Then, the nut is turned, causing the nut to move outside the screw. When the nut contacts the outer wall of the machine body, it will lock the cover plate, thus fixing the cover plate inside the machine body. Then, the machine is started. The vibrating motor drives the vibrating block, screening plate, and screening screen to shake. The vibration force causes the spring to rebound, filling the screening screen with sand and gravel. The vibration force separates the sand and gravel inside the screen. The dust generated during this process will float to the top. A dustproof net is installed inside the mounting block to block the floating dust and prevent it from spreading. The device covers the inside of the machine with a cover plate to prevent dust from spreading. The dustproof net isolates the floating dust and performs dust suppression treatment. This not only has a good screening effect on sand and gravel but also achieves the effect of dust suppression screening.

[0008] A further feature of this invention is that a feeding plate is fixedly connected to the inner wall of the machine body, and a feeding hopper is fixedly connected to the bottom of the feeding plate.

[0009] By adopting the above technical solution, the stones are isolated inside the screening screen, and the sand will fall into the hopper in the feeding plate through the mesh of the screening screen.

[0010] A further feature of this invention is that a discharge pipe is fixedly connected to one side of the hopper, and the discharge pipe extends through to the outside of the machine body.

[0011] By adopting the above technical solution, one end of the discharge pipe is connected to the hopper, and the other end of the discharge pipe extends to the outside of the machine body, thereby enabling the sand to be discharged outside the machine body.

[0012] A further feature of this invention is that a closing plate is rotatably connected inside the discharge pipe, and limit blocks are fixedly connected to both sides of the inner wall of the discharge pipe.

[0013] By adopting the above technical solution, the closing plate is rotatably connected inside the discharge pipe. When the closing plate contacts the limiting block, it will seal the bottom of the discharge pipe. When the closing plate does not contact the limiting block, the sand will be discharged through the discharge pipe.

[0014] A further feature of this invention is that a connecting rod is fixedly connected to one end of the closing plate, and a handle is fixedly connected to one end of the connecting rod.

[0015] By adopting the above technical solution, it is relatively convenient to rotate the connecting rod and the closing plate by holding the handle.

[0016] A further feature of this invention is that a protective sleeve is fixedly connected to the outside of the handle, and an anti-slip layer is fixedly connected to the outside of the protective sleeve.

[0017] By adopting the above technical solutions, the sheath and anti-slip layer increase friction and prevent slippage.

[0018] A further feature of this invention is that a base is fixedly connected to the bottom of the body, and a support leg is fixedly connected to the bottom of the base.

[0019] By adopting the above technical solution, the base and legs support the machine body, ensuring the stability of the machine body during operation.

[0020] A further feature of this invention is that a notch is provided on the outer side of the machine body, and the screening plate extends into the interior of the machine body through the notch.

[0021] By adopting the above technical solution, when removing stones from inside the screening mesh, the screening plate and screening mesh can be removed from inside the machine body through the notch, thereby removing the stones from inside the screening mesh.

[0022] A further feature of this invention is that the number of screws is four, and the number of nuts is four.

[0023] By adopting the above technical solution, four screws are distributed at the four corners of the cover plate, and each screw has an external threaded connection to a nut, which improves the locking effect on the cover plate.

[0024] A further feature of this invention is that the number of vibration motors is four, and the four vibration motors are arranged in pairs, with each pair of vibration motors being symmetrical to each other.

[0025] By adopting the above technical solution, each set of vibrating motors is distributed on the left and right sides of the top of the screening plate, which improves the excitation effect.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of the machine body, slide rail, slider, spring, counterweight, screening plate, rectangular groove, cover plate, screw, nut, vibrating motor, excitation block, screening screen, mounting block and dustproof net, this device covers the inside of the machine body with the cover plate to prevent dust from spreading, and isolates the floating dust with the dustproof net, and performs dust suppression treatment again. It not only has a good screening effect on sand and gravel, but also achieves the effect of dust suppression screening.

[0028] 2. In this utility model, through the arrangement of the feeding plate, feeding hopper, discharge pipe, closing plate and limiting block, the stones are isolated inside the screening screen, and the sand will fall into the feeding hopper in the feeding plate through the mesh of the screening screen. The other end of the discharge pipe extends to the outside of the machine body, thereby discharging the sand outside the machine body. The closing plate is rotatably connected to the inside of the discharge pipe. When the closing plate contacts the limiting block, it will seal the bottom end of the discharge pipe. When the closing plate does not contact the limiting block, the sand will be discharged through the discharge pipe. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the slide rail of this utility model;

[0032] Figure 3 This is a schematic diagram of the internal structure of the body of this utility model;

[0033] Figure 4 This is a schematic diagram of the internal structure of the discharge pipe of this utility model.

[0034] In the diagram, 1. Machine body; 2. Slide rail; 3. Slider; 4. Spring; 5. Counterweight; 6. Screening plate; 7. Rectangular trough; 8. Cover plate; 9. Screw; 10. Nut; 11. Vibration motor; 12. Vibration block; 13. Screening screen; 14. Mounting block; 15. Dustproof net; 16. Feeding plate; 17. Feeding hopper; 18. Discharge pipe; 19. Closing plate; 20. Limiting block; 21. Connecting rod; 22. Handle; 23. Base. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A sand and gravel vibrating screen includes a body 1. Slide rails 2 are fixedly connected to both sides of the inner wall of the body 1. A slider 3 is slidably connected inside the slide rails 2. A spring 4 is fixedly connected to the bottom of the slider 3. A counterweight 5 is fixedly connected to the bottom of the spring 4. A screening plate 6 is fixedly connected to one side of the slider 3. Rectangular grooves 7 are formed on both sides of the interior of the body 1. A cover plate 8 overlaps inside the body 1. Screws 9 are fixedly connected to both sides of the cover plate 8. Nuts 10 are threaded onto the outside of the screws 9. Vibration motors 11 are fixedly installed on both sides of the bottom of the cover plate 8. Vibration blocks 12 are fixedly connected to both sides of the top of the screening plate 6. A screening screen 13 is fixedly connected to the center of the interior of the screening plate 6. Mounting blocks 14 are fixedly connected to both sides of the bottom of the cover plate 8. An internal dustproof mesh 15 is attached. The slider 3 is installed inside the machine body 1 via the slide rail 2. The counterweight 5 and the slider 3 are supported by a spring 4. The counterweight 5 is in close contact with the inner bottom wall of the slide rail 2 to ensure the stability of the slider 3 during movement. At this time, the screening plate 6 will cover the inside of the machine body 1, and the cover plate 8 will overlap the inside of the machine body 1. The screw 9 will extend into the inside of the rectangular groove 7, and the cover plate 8 will move inside the machine body 1. The vibration motor 11 at the bottom of the cover plate 8 will extend into the exciter block 12 at the top of the screening plate 6. Then, the nut 10 is turned, causing the nut 10 to move outside the screw 9. When the nut 10 contacts the outer wall of the machine body 1, it will lock the cover plate 8, thereby fixing the cover plate 8 inside the machine body 1. Then, start The vibrating motor 11 drives the vibrating block 12, the screening plate 6, and the screening screen to vibrate. The vibration force causes the spring 4 to rebound, filling the screening screen 13 with sand and gravel. The vibration force separates the sand and gravel within the screen. Dust generated during this process will rise to the surface. A dustproof net 15 is installed inside the mounting block 14 to block the rising dust and prevent it from scattering. The device uses a cover plate 8 to cover the inside of the machine body 1 to prevent dust from scattering, and the dustproof net 15 isolates the rising dust, further reducing dust. This not only provides excellent screening of sand and gravel but also achieves dust suppression during screening. A material feeder is fixedly connected to the inner wall of the machine body 1. A feeding plate 16 has a feeding hopper 17 fixedly connected to its bottom. Stones are isolated inside a screening screen 13, while sand falls through the mesh of the screening screen 13 into the feeding hopper 17. A discharge pipe 18 is fixedly connected to one side of the feeding hopper 17, extending to the outside of the machine body 1. One end of the discharge pipe 18 is connected to the feeding hopper 17, and the other end extends to the outside of the machine body 1, thus discharging sand from the machine body 1. A closing plate 19 is rotatably connected inside the discharge pipe 18. Limiting blocks 20 are fixedly connected to both sides of the inner wall of the discharge pipe 18. The closing plate 19 is rotatably connected inside the discharge pipe 18. When the closing plate 19 contacts the limiting blocks 20, it seals the bottom end of the discharge pipe 18.When the closing plate 19 is not in contact with the limiting block 20, the sand will be discharged through the discharge pipe 18. A connecting rod 21 is fixedly connected to one end of the closing plate 19, and a handle 22 is fixedly connected to one end of the connecting rod 21. Holding the handle 22 makes it convenient to rotate the connecting rod 21 and the closing plate 19. A protective sleeve is fixedly connected to the outside of the handle 22, and an anti-slip layer is fixedly connected to the outside of the protective sleeve. The protective sleeve and the anti-slip layer increase friction and prevent slippage. A base 23 is fixedly connected to the bottom of the machine body 1, and a support foot is fixedly connected to the bottom of the base 23. The base 23 and the support foot support the machine body 1 and ensure the stability of the machine body 1 during operation. An opening is provided on the outer side of the machine body 1 for the screening plate. The 6-screw extends into the interior of the machine body 1 through a notch. When removing stones from inside the screening screen 13, the screening plate 6 and screening screen 13 are removed from inside the machine body 1 through the notch, thus allowing the stones inside the screening screen 13 to be removed. There are four screws 9 and four nuts 10. The four screws 9 are distributed at the four corners of the cover plate 8, and each screw 9 has an external threaded connection to a nut 10, improving the locking effect on the cover plate 8. There are four vibrating motors 11, arranged in pairs, with each pair of vibrating motors 11 symmetrically distributed on the left and right sides of the top of the screening plate 6, improving the vibration effect.

[0037] In this invention, the slider 3 is installed inside the machine body 1 via the slide rail 2. The counterweight 5 is supported by a spring 4, and the counterweight 5 is tightly attached to the inner bottom wall of the slide rail 2 to ensure the stability of the slider 3 during movement. At this time, the screening plate 6 will cover the inside of the machine body 1, and the cover plate 8 will overlap the inside of the machine body 1. The screw 9 will extend into the rectangular groove 7, and the cover plate 8 will move within the machine body 1. The vibration motor 11 at the bottom of the cover plate 8 will extend to the top of the screening plate 6. In the vibrating block 12, the nut 10 is then twisted, causing it to move outside the screw 9. When the nut 10 contacts the outer wall of the machine body 1, it will lock the cover plate 8, thus fixing the cover plate 8 inside the machine body 1. Then, the vibration motor 11 is started, causing the vibration motor 11 to drive the vibrating block 12, the screening plate 6, and the screening screen to vibrate. Through the action of the vibration force, the spring 4 rebounds, filling the screen 13 with sand and gravel. Through the action of the vibration force, the sand and gravel can be... The internal sand and gravel are separated, and the dust generated during this process will float to the top. A dustproof net 15 is installed inside the mounting block 14 to block the rising dust and prevent it from scattering. This device covers the inside of the machine body 1 with a cover plate 8 to prevent dust from scattering, and isolates the rising dust with the dustproof net 15, thus further reducing dust. This not only provides excellent screening of sand and gravel but also achieves dust suppression screening. The gravel is isolated inside the screening net 13, while the sand... The sand will fall through the mesh of the screening screen 13 into the hopper 17 in the feeding plate 16. One end of the discharge pipe 18 is connected to the hopper 17, and the other end of the discharge pipe 18 extends to the outside of the machine body 1, thereby discharging the sand to the outside of the machine body 1. The closing plate 19 is rotatably connected to the inside of the discharge pipe 18. When the closing plate 19 contacts the limiting block 20, it will seal the bottom of the discharge pipe 18. When the closing plate 19 does not contact the limiting block 20, the sand will be discharged through the discharge pipe 18.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel vibrating screen, comprising a machine body (1), characterized in that: The inner walls of the machine body (1) are fixedly connected to both sides of a slide rail (2). A slider (3) is slidably connected inside the slide rail (2). A spring (4) is fixedly connected to the bottom of the slider (3). A counterweight (5) is fixedly connected to the bottom of the spring (4). A screening plate (6) is fixedly connected to one side of the slider (3). Rectangular grooves (7) are opened on both sides of the inside of the machine body (1). A cover plate (8) overlaps inside the machine body (1). Both sides of the cover plate (8) are... A screw (9) is fixedly connected, and a nut (10) is connected to the external thread of the screw (9). Vibration motors (11) are fixedly installed on both sides of the bottom of the cover plate (8). Vibration blocks (12) are fixedly connected to both sides of the top of the screening plate (6). A screening screen (13) is fixedly connected to the center inside the screening plate (6). Mounting blocks (14) are fixedly connected to both sides of the bottom of the cover plate (8). A dustproof net (15) is snapped into the inside of the mounting block (14).

2. The sand and gravel vibrating screen according to claim 1, characterized in that: The inner wall of the machine body (1) is fixedly connected to a feeding plate (16), and the bottom of the feeding plate (16) is fixedly connected to a feeding hopper (17).

3. The sand and gravel vibrating screen according to claim 2, characterized in that: A discharge pipe (18) is fixedly connected to one side of the hopper (17), and the discharge pipe (18) extends through to the outside of the machine body (1).

4. A sand and gravel vibrating screen according to claim 3, characterized in that: The discharge pipe (18) is rotatably connected to a closing plate (19), and limit blocks (20) are fixedly connected to both sides of the inner wall of the discharge pipe (18).

5. A sand and gravel vibrating screen according to claim 4, characterized in that: One end of the closing plate (19) is fixedly connected to a connecting rod (21), and one end of the connecting rod (21) is fixedly connected to a handle (22).

6. A sand and gravel vibrating screen according to claim 5, characterized in that: The handle (22) is fixedly connected to the outside of a protective sleeve, and the protective sleeve is fixedly connected to the outside of an anti-slip layer.

7. A sand and gravel vibrating screen according to claim 1, characterized in that: The bottom of the body (1) is fixedly connected to a base (23), and the bottom of the base (23) is fixedly connected to a support leg.

8. A sand and gravel vibrating screen according to claim 1, characterized in that: The outer side of the machine body (1) has an opening, and the screening plate (6) extends into the interior of the machine body (1) through the opening.

9. A sand and gravel vibrating screen according to claim 1, characterized in that: The number of screws (9) is four, and the number of nuts (10) is four.

10. A sand and gravel vibrating screen according to claim 1, characterized in that: The number of vibration motors (11) is four, and the four vibration motors (11) are in pairs, with each pair of vibration motors (11) being symmetrical to each other.

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