Gravel screening equipment

Abstract

The utility model relates to the field of gravel screening, and discloses gravel screening equipment which comprises screening mechanisms, the three screening mechanisms are sequentially distributed in an end-to-end connection mode from the upper left to the lower right, the three screening mechanisms are the first screening mechanism, the second screening mechanism and the third screening mechanism respectively, each screening mechanism comprises a frame plate, and the frame plates are in a square tube shape. The right end of the frame plate inclines downwards, the bottom of the frame plate is open, the four corners of the bottom of the frame plate are fixedly connected with supporting legs, the bottoms of the four supporting legs are flush, a material guide plate is fixedly connected between the right side walls of the two supporting legs on the left side and the left side walls of the two supporting legs on the right side, and the front end of the material guide plate inclines downwards. The three screening mechanisms are arranged, each mechanism is provided with screening hole diameters of different sizes, gravels are screened in a classified mode, screening efficiency and accuracy are improved, the screening area is increased through the design of the roller, screening efficiency is improved, the roller is driven by the motor to rotate, continuous screening is achieved, and screening speed is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel screening, specifically a sand and gravel screening device. Background Technology

[0002] Sand and gravel screening is an indispensable part of the mining and construction industries. In sand and gravel production lines, the technical level and quality of screening equipment directly affect the process effect, production efficiency, and the economic benefits of enterprises.

[0003] Most current sand and gravel screening equipment uses fixed mesh screens for screening. Fixed mesh screens cannot screen sand and gravel of different sizes at the same time, and the screening efficiency is slow for large quantities of sand and gravel. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a sand and gravel screening device.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A sand and gravel screening device includes three screening mechanisms arranged sequentially from top left to bottom right, namely Screening Mechanism 1, Screening Mechanism 2, and Screening Mechanism 3. Each screening mechanism includes a frame plate, which is square-tube shaped. The right end of the frame plate slopes downward, and the bottom of the frame plate is open. Support legs are fixedly connected to the four corners of the bottom of the frame plate, and the bottoms of the four support legs are flush. A guide plate is fixedly connected between the right side wall of the two left support legs and the left side wall of the two right support legs. The front end of the guide plate slopes downward. A fixed frame is provided on the outer side of the frame plate, and the fixed frame is fixedly connected to the front and rear side walls of the frame plate. A rotating shaft is provided on the inner side of the frame plate, and the left and right ends of the rotating shaft are respectively connected to the left and right sides of the fixed frame. The top of the wall is rotatably connected, and a roller is located on the outside of the rotating shaft. Several connecting rods are fixedly connected to the outer wall of the rotating shaft at both ends and the middle of the inner wall of the roller. The connecting rods are evenly distributed around the rotating shaft. Screen holes are opened on the outer wall of the roller and are evenly distributed on the outer wall of the roller. A fixing frame is fixedly connected to the bottom of the left outer wall of the frame plate. A feed trough plate is fixedly connected to the top of the fixing frame. The right end of the feed trough plate extends to the inner side of the left end of the roller. A discharge trough plate is fixedly connected to the bottom of the right outer wall of the frame plate. The left end of the discharge trough plate is located at the bottom of the right end of the roller. A drive mechanism is fixedly installed on the rear side wall of the frame plate. The drive mechanism is connected to the rotating shaft. The screen hole diameters of screening mechanism one, screening mechanism two, and screening mechanism three increase sequentially.

[0007] The bottom ends of the four legs of screening mechanism one are all fixedly connected to support column one, and the bottom ends of the four legs of screening mechanism two are all fixedly connected to support column two.

[0008] The left side of the screening mechanism has a feed hopper, the right side of the feed hopper has an opening, the front and rear sides and the bottom of the feed hopper opening have connecting plates, the left end of the connecting plate is fixedly connected to the outer wall of the feed hopper, the bottom of the front and rear connecting plates is fixedly connected to the front and rear side walls of the bottom connecting plate, and the right end of the three connecting plates is fixedly connected to the left end of the feed trough plate of the screening mechanism.

[0009] The right end of the discharge chute plate of screening mechanism one is located at the top left end of the feed chute plate of screening mechanism two, and the right end of the discharge chute plate of screening mechanism two is located at the top left end of the feed chute plate of screening mechanism three.

[0010] The drive mechanism includes a motor located on the rear side of the frame plate. The motor is fixedly mounted on the top of the fixed frame. The right end of the motor's output shaft is fixedly sleeved with pulley one. The right end of the rotating shaft extends through the right side wall of the fixed frame. The right end of the rotating shaft is fixedly sleeved with pulley two. A belt is sleeved between the outer walls of pulley one and pulley two. The outer sides of pulley one, pulley two, and belt are covered with dustproof shells, which are fixedly connected to the outer wall of the fixed frame.

[0011] The beneficial effects of this utility model are:

[0012] This invention achieves graded screening of sand and gravel by setting up three screening mechanisms, each with different screen aperture sizes, thereby improving screening efficiency and accuracy.

[0013] The drum design increases the screening area and improves screening efficiency. The motor drives the drum to rotate, enabling continuous screening and increasing the screening speed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Rear view structural diagram;

[0016] Figure 3 yes Figure 1 A sectional view;

[0017] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the screening mechanism of this utility model.

[0019] The reference numerals in all the attached drawings are as follows: 1. Screening mechanism one; 2. Screening mechanism two; 3. Screening mechanism three; 4. Support column one; 5. Support column two; 6. Feed hopper; 7. Connecting plate; 11. Frame plate; 12. Support leg; 13. Guide plate; 14. Fixed frame; 15. Rotating shaft; 16. Roller; 17. Connecting rod; 18. Screen hole; 19. Fixed frame; 20. Feed trough plate; 21. Discharge trough plate; 22. Motor; 23. Pulley one; 24. Pulley two; 25. Belt; 26. Dustproof shell. Detailed Implementation

[0020] like Figure 1-5 As shown: A sand and gravel screening device includes a screening mechanism. Three screening mechanisms are arranged sequentially from the upper left to the lower right, connected end to end. The three screening mechanisms are screening mechanism one (1), screening mechanism two (2), and screening mechanism three (3). Each screening mechanism includes a frame plate 11, which is square tubular in shape. The right end of the frame plate 11 is inclined downwards, and the bottom of the frame plate 11 is open. Support legs 12 are fixedly connected to the four corners of the bottom of the frame plate 11. The bottoms of the four support legs 12 are flush. Guide plates 13 are fixedly connected between the right side wall of the two left support legs 12 and the left side wall of the two right support legs 12. The front end of the guide plates 13 is inclined downwards. A fixing frame 14 is provided on the outer side of the frame plate 11. The fixing frame 14 is fixedly connected to the front and rear side walls of the frame plate 11. A rotating shaft 15 is provided on the inner side of the frame plate 11. The left and right ends of the rotating shaft 15 are respectively connected to the top of the left and right side walls of the fixing frame 14. A rotating shaft 15 has a roller 16 on its outer side. Several connecting rods 17 are fixedly connected between the inner ends and the middle of the inner wall of the roller 16 and the outer wall of the rotating shaft 15. The connecting rods 17 are evenly distributed around the rotating shaft 15. Screen holes 18 are opened on the outer wall of the roller 16. The screen holes 18 are evenly distributed on the outer wall of the roller 16. A fixing frame 19 is fixedly connected to the bottom of the outer wall of the left end of the frame plate 11. A feed trough plate 20 is fixedly connected to the top of the fixing frame 19. The right end of the feed trough plate 20 extends to the inner side of the left end of the roller 16. A discharge trough plate 21 is fixedly connected to the bottom of the outer wall of the right end of the frame plate 11. The left end of the discharge trough plate 21 is located at the bottom of the right end of the roller 16. A drive mechanism is fixedly installed on the rear side wall of the frame plate 11. The drive mechanism is connected to the rotating shaft 15. The screen hole diameters 18 of the screening mechanism 1, screening mechanism 2, and screening mechanism 3 increase sequentially.

[0021] The bottom ends of the four legs 12 of screening mechanism 1 are all fixedly connected to support column 4, and the bottom ends of the four legs 12 of screening mechanism 2 are all fixedly connected to support column 5.

[0022] The left side of the screening mechanism 1 has a feed hopper 6, the right side of the feed hopper 6 is open, and the front, back and bottom of the feed hopper 6 opening have connecting plates 7. The left end of the connecting plate 7 is fixedly connected to the outer wall of the feed hopper 6, the bottom of the front and back connecting plates 7 is fixedly connected to the front and back side walls of the bottom connecting plate 7, and the right end of the three connecting plates 7 is fixedly connected to the left end of the feed trough plate 20 of the screening mechanism 1.

[0023] The right end of the discharge trough plate 21 of screening mechanism 1 is located at the top left end of the feed trough plate 20 of screening mechanism 2, and the right end of the discharge trough plate 21 of screening mechanism 2 is located at the top left end of the feed trough plate 20 of screening mechanism 3.

[0024] The drive mechanism includes a motor 22, which is located on the rear side of the frame plate 11. The motor 22 is fixedly installed on the top of the fixed frame 14. The right end of the output shaft of the motor 22 is fixedly sleeved with a pulley 23. The right end of the rotating shaft 15 extends through the right side wall of the fixed frame 14. The right end of the rotating shaft 15 is fixedly sleeved with a pulley 24. A belt 25 is sleeved between the outer walls of the pulley 23 and the belt 24. The outer sides of the pulley 23, the pulley 24 and the belt 25 are covered with dustproof shells 26, which are fixedly connected to the outer wall of the fixed frame 14.

[0025] Sand and gravel enter the screening equipment through the feed hopper 6. The design of the feed hopper 6 allows the sand and gravel to smoothly enter the feed trough plate 20 of the screening mechanism 1.

[0026] When the motor 22 starts, it drives the rotating shaft 15 to rotate through the transmission system of pulley 23, pulley 24 and belt 25, which in turn drives the roller 16 to rotate inside the frame plate 11.

[0027] The screen holes 18 on the outer wall of the drum 16 screen the sand and gravel entering the drum. Sand and gravel particles smaller than the screen hole 18 will fall through the screen hole 18 onto the guide plate 13 and slide along the guide plate 13 to the ground in front. Users can use containers to collect these small sand and gravel particles at the corresponding positions on the ground.

[0028] Sand and gravel particles larger than the aperture of the screen 18 of the screening mechanism 1 enter the feed trough 20 of the screening mechanism 2 along the feed trough 21 and enter the drum 16 of the screening mechanism 2 for further screening.

[0029] The roller 16 of screening mechanism 2 has a larger screen aperture 18 than that of screening mechanism 11, thus enabling the screening of larger sand and gravel particles.

[0030] Similarly, the large particles of sand and gravel screened by screening mechanism 2 will enter screening mechanism 3 along the feed chute 21 for final screening.

[0031] The screening mechanism 3 has the largest sieve aperture 18, which is used to screen out the largest size sand and gravel particles.

[0032] Finally, the largest sand and gravel particles roll off the feed chute 21 of the screening mechanism 3 onto the ground on the right side, completing the entire screening process.

[0033] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A sand and gravel screening device, characterized in that, The system includes a screening mechanism. Three screening mechanisms are arranged sequentially from the upper left to the lower right, connected end to end. The three screening mechanisms are screening mechanism one (1), screening mechanism two (2), and screening mechanism three (3). Each screening mechanism includes a frame plate (11), which is square tubular. The right end of the frame plate (11) is inclined downwards, and the bottom of the frame plate (11) is open. Support legs (12) are fixedly connected to the four corners of the bottom of the frame plate (11). The bottoms of the four support legs (12) are flush. The two on the left side are... A guide plate (13) is fixedly connected between the right side wall of one support leg (12) and the left side wall of the two right support legs (12). The front end of the guide plate (13) is inclined downward. A fixed frame (14) is provided on the outer side of the frame plate (11). The fixed frame (14) is fixedly connected to the front and rear side walls of the frame plate (11). A rotating shaft (15) is provided on the inner side of the frame plate (11). The left and right ends of the rotating shaft (15) are rotatably connected to the top of the left and right side walls of the fixed frame (14) respectively. The outer side has a roller (16). Several connecting rods (17) are fixedly connected between the inner ends and the middle of the inner wall of the roller (16) and the outer wall of the rotating shaft (15). The connecting rods (17) are evenly distributed around the rotating shaft (15). Screen holes (18) are opened on the outer wall of the roller (16). The screen holes (18) are evenly distributed on the outer wall of the roller (16). A fixing frame (19) is fixedly connected to the bottom of the outer wall of the left end of the frame plate (11). The top of the fixing frame (19) is fixedly connected to the feed chute. The right end of the feed trough plate (20) extends to the inner side of the left end of the drum (16). The bottom of the outer wall of the right end of the frame plate (11) is fixedly connected to the discharge trough plate (21). The left end of the discharge trough plate (21) is located at the bottom of the right end of the drum (16). The rear side wall of the frame plate (11) is fixedly installed with a drive mechanism. The drive mechanism is connected to the rotating shaft (15). The screen hole (18) diameters of the screening mechanism one (1), screening mechanism two (2) and screening mechanism three (3) increase sequentially.

2. The sand and gravel screening equipment according to claim 1, characterized in that, The bottom ends of the four legs (12) of the screening mechanism one (1) are all fixedly connected to the support column one (4), and the bottom ends of the four legs (12) of the screening mechanism two (2) are all fixedly connected to the support column two (5).

3. The sand and gravel screening equipment according to claim 1, characterized in that, The left side of the screening mechanism (1) has a feed hopper (6), the right side of the feed hopper (6) is open, the front and rear sides and the bottom of the feed hopper (6) are all equipped with connecting plates (7), the left end of the connecting plate (7) is fixedly connected to the outer wall of the feed hopper (6), the bottom of the front and rear connecting plates (7) is fixedly connected to the front and rear side walls of the bottom connecting plate (7), and the right ends of the three connecting plates (7) are fixedly connected to the left end of the feed trough plate (20) of the screening mechanism (1).

4. The sand and gravel screening equipment according to claim 1, characterized in that, The right end of the discharge trough plate (21) of screening mechanism one (1) is located at the top left end of the feed trough plate (20) of screening mechanism two (2), and the right end of the discharge trough plate (21) of screening mechanism two (2) is located at the top left end of the feed trough plate (20) of screening mechanism three (3).

5. The sand and gravel screening equipment according to claim 1, characterized in that, The drive mechanism includes a motor (22), which is located on the rear side of the frame plate (11). The motor (22) is fixedly installed on the top of the fixed frame (14). The right end of the output shaft of the motor (22) is fixedly sleeved with pulley one (23). The right end of the rotating shaft (15) passes through the right side wall of the fixed frame (14). The right end of the rotating shaft (15) is fixedly sleeved with pulley two (24). A belt (25) is sleeved between the outer wall of pulley one (23) and pulley two (24). The outer sides of pulley one (23), pulley two (24) and belt (25) have dustproof shells (26). The dustproof shells (26) are fixedly connected to the outer wall of the fixed frame (14).

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