Sand screening machine with screen clogging prevention structure

Abstract

The utility model discloses a sand screening machine with sieve net prevents blocking structure relates to sand screening machine technical field, including support frame, guide material inclined plate, screening box, vibrating motor and sieve net main part, the inside installation of support frame is used for the guide material inclined plate of sand after screening to guide material, the top of support frame is connected with screening box through vibration spring. This sand screening machine with sieve net prevents blocking structure, when servo motor operation, can drive pinion to rotate, when pinion rotates, can engage and drive gear wheel to rotate, when gear wheel rotates, can drive first connecting rod to rotate, when first connecting rod rotates, can drive corresponding pulley to rotate, when stone is discharged along the surface of sieve net main part, the stone of vibration can splash to the inside of baffle, can prevent splashing stone from continuing to splash through the baffle to the effective prevention stone and hit the staff around, improve the security of sand screening machine use.

Description

Technical Field

[0001] This utility model relates to the field of sand screening machine technology, specifically a sand screening machine with a screen anti-clogging structure. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, equipment, and other activities. Sand screening machines are professional equipment used for sand and gravel grading and impurity separation, and play a key role in concrete preparation and foundation treatment in construction engineering.

[0003] In the existing technology, sand screening machines are mainly divided into vibrating sand screening machines and drum sand screening machines. Vibrating sand screening machines are more common in construction projects. Vibrating sand screening machines can drive the screen to vibrate through a vibrating motor and vibrating spring, so that sand and gravel can be screened through the vibrating screen. When the sand screening machine is in use, if the material has a high moisture content, sand and gravel are prone to clumping. When the clumped sand and gravel fall onto the screen, it can easily cause the screen to become clogged, making it difficult to screen the clumped sand and gravel effectively. Utility Model Content

[0004] The purpose of this invention is to provide a sand screening machine with a screen anti-clogging structure to solve the problem of easy clogging of the screen in the sand screening machine mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand screening machine with a screen anti-clogging structure, comprising a support frame, a guide plate, a screening box, a vibrating motor, and a screen body. The inner side of the support frame is equipped with a guide plate for guiding the screened sand. The top of the support frame is connected to the screening box via a vibration spring. The outer side of the screening box is equipped with a vibrating motor for driving the screening box to vibrate. The inner side of the screening box is equipped with a screen body for screening sand and gravel. A feeding box is welded to the inner side of the screening box near the vibrating motor. A first connecting rod and a second connecting rod are respectively connected through bearings between the feeding box and the screening box. Dispersing rods for breaking up clumps of sand and gravel are welded to the outer sides of both the first and second connecting rods, and the dispersing rods on the first and second connecting rods are staggered. A support plate is welded to the outer side of the screening box, and a servo motor is installed on the surface of the support plate.

[0006] Preferably, a pinion is connected to the output shaft of the servo motor, and pulleys are connected to the outer sides of the first connecting rod and the second connecting rod near the servo motor.

[0007] Preferably, the pulleys in the group are connected by a belt body, and the first connecting rod is connected to a large gear near the outside of the small gear, and the large gear and the small gear are meshed together.

[0008] Preferably, a U-shaped block is welded to the inner side of the screening box away from the feeding box, and a slot is provided on the inner side of the U-shaped block.

[0009] Preferably, the bottom of the U-shaped block is provided with a baffle to block flying gravel, and a T-shaped block is connected to the baffle near the top of the slot.

[0010] Preferably, a connecting post is connected to the top of the T-shaped block, and a horizontal plate is rotatably connected to the outside of the connecting post.

[0011] Preferably, the horizontal plate has a threaded knob connected to its internal threads, and the top of the U-shaped block has a threaded hole that matches the size of the threaded knob.

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

[0013] 1. The high-speed rotating dispersing rod can break up the clumps of sand and gravel inside the feeding box, allowing the sand and gravel falling onto the screen body to be screened. This prevents the screen body from clogging and improves the screening efficiency of the sand screening machine for clumps of sand and gravel.

[0014] 2. When the stones are discharged along the surface of the screen body, the vibrating stones will splash to the inside of the baffle. The baffle can prevent the splashed stones from continuing to fly, thereby effectively preventing stones from hitting the surrounding workers and improving the safety of the sand screening machine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the feeding box of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the first connecting rod of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the U-shaped block of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the baffle of this utility model.

[0020] In the diagram: 1. Support frame; 2. Guide plate; 3. Screening box; 4. Vibrating motor; 5. Screen body; 6. Feeding box; 7. First connecting rod; 8. Second connecting rod; 9. Dispersing rod; 10. Support plate; 11. Servo motor; 12. Pinion; 13. Pulley; 14. Belt body; 15. Large gear; 16. U-shaped block; 17. Slot; 18. Baffle; 19. T-shaped block; 20. Connecting column; 21. Horizontal plate; 22. Threaded knob. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 It is understood that this utility model provides a technical solution: a sand screening machine with a screen anti-clogging structure, including a support frame 1, a guide plate 2, a screening box 3, a vibrating motor 4, and a screen body 5. The inner side of the support frame 1 is equipped with a guide plate 2 for guiding the screened sand. The top of the support frame 1 is connected to the screening box 3 by a vibration spring. The outer side of the screening box 3 is equipped with a vibrating motor 4 for driving the vibration of the screening box 3. The inner side of the screening box 3 is equipped with a screen body 5 for screening sand and gravel. A feeding box 6 is welded to the inner side of the screening box 3 near the vibrating motor 4. The feeding box 6 and the screening box 3 are respectively connected by a first connecting rod 7 and a second connecting rod 8 through bearings. The outer sides of the first connecting rod 7 and the second connecting rod 8 are both welded with dispersing rods 9 for breaking up agglomerated sand and gravel, and the dispersing rods 9 on the first connecting rod 7 and the second connecting rod 8 are staggered. A support plate 10 is welded to the outer side of the screening box 3, and a servo motor 11 is installed on the surface of the support plate 10.

[0023] exist Figures 1-3 In the middle: a small gear 12 is connected to the output shaft of the servo motor 11, and pulleys 13 are connected to the outer side of the first connecting rod 7 and the second connecting rod 8 near the servo motor 11.

[0024] exist Figures 1-3 In the middle: the two sets of pulleys 13 are connected by a belt body 14. The belt body 14 can drive the two sets of pulleys 13 to rotate, thereby driving the first connecting rod 7 and the second connecting rod 8 to rotate. The first connecting rod 7 is connected to a large gear 15 near the outside of the small gear 12, and the large gear 15 and the small gear 12 are meshed.

[0025] In practice, when the sand screening machine screens sand and gravel, if the moisture content of the sand and gravel is high, it is easy to cause the screen body 5 to become clogged, thus affecting the screening effect. Before using the sand screening machine, the servo motor 11 can be started. When the servo motor 11 is running, it can drive the small gear 12 to rotate. When the small gear 12 rotates, it can mesh and drive the large gear 15 to rotate. When the large gear 15 rotates, it can drive the first connecting rod 7 to rotate. When the first connecting rod 7 rotates, it can drive the corresponding pulley 13 to rotate. When the pulley 13 rotates, it can drive the belt body 14 to rotate. When the belt body 14 rotates, it can drive the pulley 13 on the second connecting rod 8 to rotate, so that the second connecting rod 8 can rotate with the corresponding pulley 13. Thus, the dispersing rod 9 on the first connecting rod 7 and the second connecting rod 8 can rotate at high speed inside the feeding box 6. At this time, the clumped sand and gravel can be poured into the feeding box 6.

[0026] See Figures 1-3 It can be seen that the high-speed rotating dispersing rod 9 can break up the clumps of sand and gravel inside the feeding box 6, so that the sand and gravel falling on the screen body 5 can be screened. As a result, the screen body 5 is less likely to be blocked, which can improve the screening efficiency of the sand screening machine for clumps of sand and gravel.

[0027] exist Figure 1 and Figure 4 In the middle: a U-shaped block 16 is welded to the inner side of the screening box 3 away from the feeding box 6, and a slot 17 is opened on the inner side of the U-shaped block 16.

[0028] exist Figure 1 , Figure 4 and Figure 5 In the middle: The bottom of the U-shaped block 16 is provided with a baffle 18 for blocking the flying of gravel. The baffle 18 is connected to the top of the slot 17 with a T-shaped block 19. The top of the T-shaped block 19 is connected to a connecting post 20. The outside of the connecting post 20 is rotatably connected to a horizontal plate 21. The inside of the horizontal plate 21 is threadedly connected to a threaded knob 22. The top of the U-shaped block 16 is provided with a threaded hole that matches the size of the threaded knob 22.

[0029] In practical implementation, when the sand screening machine is in use, sand falls through the gaps on the screen body 5 onto the guide plate 2 and is discharged through the guide plate 2. The stones are discharged from the screening box 3 along the screen body 5. During this process, the vibrating motor 4 can make the screen body 5 vibrate, causing the stones on the surface of the screen body 5 to vibrate. Since the vibrating stones are easy to splash onto the surrounding personnel when discharged, there is a certain safety hazard. The baffle 18 can be moved below the U-shaped block 16 so that the end of the T-shaped block 19 on the baffle 18 can be inserted into the slot 17 inside the U-shaped block 16. At this time, the horizontal plate 21 can be pulled towards the top of the U-shaped block 16. When the horizontal plate 21 moves, it can be rotated through the connecting column 20. When the threaded knob 22 on the horizontal plate 21 is rotated to move above the threaded hole at the top of the U-shaped block 16, the threaded knob 22 can be tightened to fix the baffle 18 below the U-shaped block 16. At this time, the baffle 18 is located above the discharge end of the screen body 5.

[0030] See Figure 1 , Figure 4 and Figure 5 It can be seen that when the stones are discharged along the surface of the screen body 5, the vibrating stones will splash onto the inside of the baffle 18. The baffle 18 can prevent the splashed stones from continuing to splash, thereby effectively preventing the stones from hitting the surrounding workers and improving the safety of the sand screening machine.

Claims

1. A sand screening machine with a screen anti-clogging structure, comprising a support frame (1), a guide plate (2), a screening box (3), a vibrating motor (4), and a screen body (5), characterized in that: The inner side of the support frame (1) is equipped with a guide plate (2) for guiding the sieved sand. The top of the support frame (1) is connected to a screening box (3) by a vibration spring. The outer side of the screening box (3) is equipped with a vibration motor (4) for driving the screening box (3) to vibrate. The inner side of the screening box (3) is equipped with a screen body (5) for screening sand and gravel. The screening box (3) is welded to the inner side near the vibrating motor (4) with a feeding box (6). The feeding box (6) and the screening box (3) are respectively connected by a first connecting rod (7) and a second connecting rod (8) through bearings. The outer sides of the first connecting rod (7) and the second connecting rod (8) are each welded with a dispersing rod (9) for breaking up agglomerated sand and gravel. The dispersing rods (9) on the first connecting rod (7) and the second connecting rod (8) are staggered. The outer side of the screening box (3) is welded with a support plate (10). A servo motor (11) is installed on the surface of the support plate (10).

2. A sand screening machine with a screen anti-clogging structure according to claim 1, characterized in that: A small gear (12) is connected to the output shaft of the servo motor (11), and a pulley (13) is connected to the outer side of the first connecting rod (7) and the second connecting rod (8) near the servo motor (11).

3. A sand screening machine with a screen anti-clogging structure according to claim 2, characterized in that: The two sets of pulleys (13) are connected together by a belt body (14). The first connecting rod (7) is connected to a large gear (15) near the outside of the small gear (12), and the large gear (15) and the small gear (12) are meshed.

4. A sand screening machine with a screen anti-clogging structure according to claim 1, characterized in that: The screening box (3) has a U-shaped block (16) welded to its inner side away from the feeding box (6), and the U-shaped block (16) has a slot (17) on its inner side.

5. A sand screening machine with a screen anti-clogging structure according to claim 4, characterized in that: The bottom of the U-shaped block (16) is provided with a baffle (18) for blocking flying gravel, and the baffle (18) is connected to a T-shaped block (19) near the top of the slot (17).

6. A sand screening machine with a screen anti-clogging structure according to claim 5, characterized in that: The top of the T-shaped block (19) is connected to a connecting post (20), and a horizontal plate (21) is rotatably connected to the outside of the connecting post (20).

7. A sand screening machine with a screen anti-clogging structure according to claim 6, characterized in that: The internal thread of the horizontal plate (21) is connected to a threaded knob (22), and the top of the U-shaped block (16) is provided with a threaded hole that matches the size of the threaded knob (22).

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