Gravel screening device for constructional engineering

Abstract

The utility model discloses a gravel screening device for constructional engineering, and particularly relates to the field of gravel screening, the gravel screening device comprises a mounting seat, a first conveyor belt and a second conveyor belt are arranged on the two sides in the mounting seat respectively, a gravel screening roller is mounted at the top of the mounting seat, and a feeding hopper is fixed to one side of the mounting seat through a support; a material guiding channel is arranged at the bottom of the feeding hopper, a limiting sleeve is installed on the top of a central supporting plate of the installation base, and a cleaning assembly is connected to the limiting sleeve. The cleaning assembly is arranged, when the stone screening roller rotates to screen materials, the silica gel cleaning brush of the cleaning assembly can make contact with the inner surface and the outer surface of the stone screening roller, self-cleaning of the stone screening roller is achieved, the device can be used for screening sand and stones with certain humidity, and a filter screen is not prone to being blocked in the stone screening process.

Description

Technical Field

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

[0002] Sand and gravel refers to a loose mixture of sand and crushed stone. In geology, mineral or rock particles with a particle size of 0.074 to 2 mm are called sand, and particles with a particle size greater than 2 mm are called gravel or angular cobbles. Sand and gravel are often used as high-quality building materials and concrete raw materials due to their good hardness and stable chemical properties. They are widely used in construction projects such as houses, roads, highways, and railways. Sand and gravel screening equipment can screen and separate sand and gravel of different sizes.

[0003] After searching, the existing patent (publication number: CN220532195U) discloses a sand and gravel screening device for construction projects. This sand and gravel screening device for construction projects screens sand and gravel by installing two fixed mesh plates inside the screening box, and at the same time, an aperture adjustment mechanism is installed on the lower surface of the fixed mesh plate to adjust the aperture of the screening holes on the surface of the fixed mesh plate, so that the fixed mesh plate can meet the screening requirements of sand and gravel of different sizes, thereby greatly improving the applicability of this sand and gravel screening device for construction projects, thereby improving the work efficiency of the staff, and the force buffering of the screening box can be performed by the limit groove, the telescopic rod and the compression spring. At the same time, by hingedly installing the telescopic end of the telescopic rod to the lower surface of the screening box, the screening box can be able to swing slightly inside the limit groove, thereby increasing the screening speed of the fixed mesh plate inside the screening box, thereby improving the screening efficiency of this sand and gravel screening device for construction projects.

[0004] Existing sand and gravel screening devices have low screening efficiency and are not effective for screening sand and gravel with a certain humidity. The filter screen is prone to clogging during screening. Furthermore, the aforementioned patent documents do not propose any relevant solutions to address the above-mentioned problems.

[0005] Therefore, in response to the above problems, a sand and gravel screening device for construction engineering is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present utility model provides a sand and gravel screening device for construction engineering to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the utility model provides the following technical solution: a sand and gravel screening device for construction engineering, comprising a mounting base, a first conveyor belt and a second conveyor belt are respectively provided on both sides of the interior of the mounting base, and a stone screening drum is installed on the top of the mounting base, a feed hopper is fixed to one side of the mounting base through a bracket, and a material guide channel is provided at the bottom of the feed hopper, a limit sleeve is installed on the top of the central support plate of the mounting base, and a cleaning component is connected to the limit sleeve;

[0008] A rotation groove is provided on the top of the two side plates of the mounting seat, and a limiting groove is provided on the top of the central support plate of the mounting seat. A driving compartment is provided in the mounting seat below the rotation groove, and a driving gear is rotatably installed in the driving compartment. A motor slot is provided in the mounting seat at one end of the driving compartment, and a driving motor is installed in the motor slot. The output end of the driving motor is connected to the driving gear through a sprocket transmission mechanism.

[0009] Preferably, the mounting seat is designed to be flat in an "E" shape, and guide plates inclined downward at 45° are provided on the side walls of the mounting seat above the first conveyor belt and the second conveyor belt.

[0010] Preferably, the internal shapes of the limiting sleeve and the limiting groove are consistent with the shape of the middle section of the stone screening drum, and both ends of the limiting groove and the limiting sleeve are integrally provided with connecting parts, and the connecting parts are fixed by bolts.

[0011] Preferably, the feed hopper and the material guide channel are of integrated design, and the material guide channel is of 45° inclined design, and the discharge end of the material guide channel extends into the stone screening drum.

[0012] Preferably, the sieve drum includes a dense screen cylinder and a coarse screen cylinder, and the dense screen cylinder and the coarse screen cylinder are fixed by a connecting flange. The cylinder diameters of the dense screen cylinder and the coarse screen cylinder are consistent, and the sieve hole diameter of the dense screen cylinder is smaller than the sieve hole diameter of the coarse screen cylinder.

[0013] Preferably, the dense screen cylinder and the coarse screen cylinder are both integrally welded with a transmission part at one end away from the connecting flange, and the outer surface of the transmission part is welded with a driving gear ring, and the driving gear ring is respectively engaged with the driving gear thereunder.

[0014] Preferably, the internal shape of the rotating groove matches the transmission part, and the internal shape of the limiting groove matches the shape of the connecting flange, and balls are evenly embedded on both sides of the inner walls of the rotating groove and the limiting groove.

[0015] Preferably, the cleaning assembly includes an upper cleaning plate, a lower cleaning plate, a silicone cleaning brush and a connecting sleeve, and the lower cleaning plate is arranged through the screen stone drum, the upper cleaning plate is symmetrically welded to both sides of the limit sleeve, and the side of the upper cleaning plate away from the limit sleeve is provided with a connecting sleeve, both sides of the lower cleaning plate are inserted into the connecting sleeve, and the connecting sleeves are fixed to the upper cleaning plate and the lower cleaning plate by bolts, the upper surface of the lower cleaning plate and the lower surface of the lower cleaning plate are bonded with silicone cleaning brushes, and the silicone cleaning brushes are in contact with the wall of the screen stone drum.

[0016] The technical effects and advantages of this utility model are:

[0017] 1. Compared with the existing technology, the sand and gravel screening device for construction engineering is equipped with a stone screening drum, which is composed of two dense screen drums and a coarse screen drum with different screen hole densities. The sand and gravel are screened by the stone screening drum and can be discharged from the first conveyor belt, the second conveyor belt and the discharge end of the stone screening drum according to the different particle sizes, thereby realizing the separation operation of sand and gravel with different particle sizes. The stone screening drum screens the material while rotating, which has a better screening effect and is less likely to cause blockage.

[0018] 2. Compared with the existing technology, the sand and gravel screening device for construction projects is equipped with a cleaning component. When the stone screening drum rotates to screen the material, the silicone cleaning brush of the cleaning component can contact the inner and outer surfaces of the stone screening drum to achieve self-cleaning of the stone screening drum, so that the device can be used for screening sand and gravel with a certain humidity, and the filter screen is not easy to be blocked when screening the stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the utility model.

[0020] Figure 2 This is a schematic diagram of the mounting base structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the cleaning component structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the stone screening drum of the utility model.

[0023] The accompanying drawings are marked as follows: 1. Mounting seat; 101. Drive bin; 102. Motor slot; 2. Limiting sleeve; 3. Guide plate; 4. Sprocket transmission mechanism; 5. First conveyor belt; 6. Second conveyor belt; 7. Bracket; 8. Feed hopper; 9. Screen drum; 901. Dense screen cylinder; 902. Connecting flange; 903. Coarse screen cylinder; 904. Drive gear ring; 905. Transmission part; 10. Guide channel; 11. Cleaning assembly; 1101. Upper cleaning plate; 1102. Lower cleaning plate; 1103. Silicone cleaning brush; 1104. Connecting sleeve; 12. Drive gear; 13. Rotating groove; 14. Ball; 15. Limiting groove; 16. Connecting piece; 17. Drive motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] As attached Figure 1 The device for screening sand and gravel for construction projects shown in the figure includes a mounting base 1, a first conveyor belt 5 and a second conveyor belt 6 are respectively provided on both sides of the mounting base 1, and a stone screening drum 9 is installed on the top of the mounting base 1. A feed hopper 8 is fixed to one side of the mounting base 1 via a bracket 7, and a material guide channel 10 is provided at the bottom of the feed hopper 8. A limit sleeve 2 is installed on the top of the central support plate of the mounting base 1, and a cleaning component 11 is connected to the limit sleeve 2;

[0027] A rotation groove 13 is provided on the top of the two side plates of the mounting seat 1, and a limiting groove 15 is provided on the top of the central support plate of the mounting seat 1. A drive compartment 101 is provided in the mounting seat 1 below the rotation groove 13, and a drive gear 12 is rotatably installed in the drive compartment 101. A motor slot 102 is provided in the mounting seat 1 at one end of the drive compartment 101, and a drive motor 17 is installed in the motor slot 102. The output end of the drive motor 17 is connected to the drive gear 12 through a sprocket transmission mechanism 4.

[0028] Among them, the driving motor 17 can drive the driving gear 12 to rotate through the sprocket transmission mechanism 4, so that the stone screening drum 9 is rotated, thereby realizing rotating screening stone and screening material while rotating, with better screening effect and less likely to cause material blockage.

[0029] Example 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, the mounting seat 1 is designed in a flat "E" shape, and a guide plate 3 inclined downward at 45° is provided on the side wall of the mounting seat 1 above the first conveyor belt 5 and the second conveyor belt 6; further, the guide plate 3 can make the sand and gravel with the required particle size fall through the sieve holes of the dense screen cylinder 901 or the coarse screen cylinder 903, and can gather in the center of the first conveyor belt 5 and the second conveyor belt 6, and it is not easy to fall onto the mounting seat 1, which is more convenient for the separation of sand and gravel.

[0032] As a preferred embodiment, the internal shapes of the limiting sleeve 2 and the limiting groove 15 are consistent with the shape of the middle section of the stone screening drum 9, and the limiting groove 15 and the limiting sleeve 2 are integrally provided with connecting parts 16 at both ends, and the connecting parts 16 are fixed by bolts; further, the limiting sleeve 2 and the limiting groove 15 are connected by the connecting part 16, and the two can form an internal annular structure to limit the stone screening drum 9, so that the stone screening drum 9 can only rotate without tilting or offsetting and falling, and the design is more reasonable.

[0033] As a preferred embodiment, the feed hopper 8 and the material guide channel 10 are of an integrated design, and the material guide channel 10 is designed to be inclined at 45°, and the discharge end of the material guide channel 10 extends into the screen stone drum 9; further, the material guide channel 10 is designed to extend into the screen stone drum 9 so that the material can enter the screen stone drum 9 through the material guide of the material guide channel 10 to realize loading, and the design is more reasonable.

[0034] As a preferred embodiment, the stone screening drum 9 includes a dense screen drum 901 and a coarse screen drum 903, and the dense screen drum 901 and the coarse screen drum 903 are fixed by a connecting flange 902, the dense screen drum 901 and the coarse screen drum 903 have the same cylinder diameter, and the sieve hole diameter of the dense screen drum 901 is smaller than the sieve hole diameter of the coarse screen drum 903; further, the dense screen drum 901 and the coarse screen drum 903 are designed so that sand and gravel are screened by the stone screening drum 9 and can be discharged by the first conveyor belt 5, the second conveyor belt 6 and the discharge end of the stone screening drum 9 according to different particle sizes, thereby realizing the separation operation of sand and gravel of different particle sizes.

[0035] As a preferred embodiment, the dense screen drum 901 and the coarse screen drum 903 are both integrally welded with a transmission part 905 at one end away from the connecting flange 902, and the outer surface of the transmission part 905 is welded with a driving gear ring 904, which is respectively engaged with the driving gear 12 thereunder; further, the rotation of the driving gear 12 can cause the driving gear ring 904 to rotate relative to it, that is, drive the stone screening drum 9 to rotate, thereby realizing the rotation of the stone screening, and the stone screening efficiency is higher.

[0036] As a preferred embodiment, the internal shape of the rotating groove 13 is consistent with the transmission part 905, and the internal shape of the limiting groove 15 is consistent with the shape of the connecting flange 902, and balls 14 are evenly embedded on both sides of the inner wall of the rotating groove 13 and the limiting groove 15; further, the shape-matching design makes it difficult for the stone screening drum 9 to deviate, and the stability during stone screening is higher. The design of the balls 14 makes the stone screening drum 9 rotate more smoothly.

[0037] As a preferred embodiment, the cleaning assembly 11 includes an upper cleaning plate 1101, a lower cleaning plate 1102, a silicone cleaning brush 1103 and a connecting sleeve 1104, and the lower cleaning plate 1102 is set through the screen drum 9, the upper cleaning plate 1101 is symmetrically welded on both sides of the limit sleeve 2, and the side of the upper cleaning plate 1101 away from the limit sleeve 2 is provided with a connecting sleeve 1104, both sides of the lower cleaning plate 1102 are inserted into the connecting sleeve 1104, and the connecting sleeve 1104 is connected to the upper cleaning plate 1101 and the lower cleaning plate 1102 by bolts. The cleaning plate 1102 is fixed, and the upper surface of the lower cleaning plate 1102 and the lower surface of the lower cleaning plate 1102 are both adhered with silicone cleaning brushes 1103, and the silicone cleaning brushes 1103 are in contact with the wall of the stone screening drum 9; further, when the stone screening drum 9 rotates to screen the material, the silicone cleaning brush 1103 of the cleaning component 11 can contact the inner and outer surfaces of the stone screening drum 9, thereby realizing self-cleaning of the stone screening drum 9, so that the device can be used for screening operations of sand and gravel with a certain humidity, and the filter screen is not easy to be blocked when screening stones.

[0038] The working process of this utility model is as follows:

[0039] During use, the material is introduced into the feed hopper 8, and enters the screening drum 9 through the guide channel 10. The driving motor 17 can drive the driving gear 12 to rotate through the sprocket transmission mechanism 4. The rotation of the driving gear 12 can make the driving gear ring 904 rotate relatively, that is, drive the screening drum 9 to rotate, thereby realizing the rotating screening of stones. Sand and gravel with the required particle size fall through the sieve holes of the dense screen drum 901 or the coarse screen drum 903. After being guided by the guide plate 3, they gather in the center of the first conveyor belt 5 or the second conveyor belt 6 and are transported out. Sand and gravel with larger particle size are discharged from the discharge end of the screening drum 9, realizing the screening and separation of sand and gravel. In addition, when the screening drum 9 rotates to screen the material, the silicone cleaning brush 1103 of the cleaning component 11 can contact the inner and outer surfaces of the screening drum 9, thereby realizing the self-cleaning of the screening drum 9.

[0040] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sand and gravel screening device for construction engineering, comprising a mounting seat (1), characterized in that: A first conveyor belt (5) and a second conveyor belt (6) are respectively provided on both sides of the interior of the mounting seat (1), and a stone screening drum (9) is installed on the top of the mounting seat (1); a feed hopper (8) is fixed to one side of the mounting seat (1) through a bracket (7), and a material guide channel (10) is provided at the bottom of the feed hopper (8); a limiting sleeve (2) is installed on the top of the central support plate of the mounting seat (1), and a cleaning component (11) is connected to the limiting sleeve (2); The tops of both side plates of the mounting seat (1) are provided with rotation slots (13), and the top of the central support plate of the mounting seat (1) is provided with a limiting slot (15). A driving chamber (101) is provided in the mounting seat (1) below the rotation slot (13), and a driving gear (12) is rotatably installed in the driving chamber (101). A motor slot (102) is provided in the mounting seat (1) at one end of the driving chamber (101), and a driving motor (17) is installed in the motor slot (102). The output end of the driving motor (17) is connected to the driving gear (12) through a sprocket transmission mechanism (4).

2. A sand and gravel screening device for construction engineering according to claim 1, characterized in that: The mounting seat (1) is designed to be flat in an "E" shape, and a guide plate (3) inclined downward at 45 degrees is provided on the side wall of the mounting seat (1) above the first conveyor belt (5) and the second conveyor belt (6).

3. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: The internal shapes of the limiting sleeve (2) and the limiting groove (15) are consistent with the shape of the middle section of the stone screening drum (9), and both ends of the limiting groove (15) and the limiting sleeve (2) are integrally provided with connecting pieces (16), and the connecting pieces (16) are fixed by bolts.

4. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: The feed hopper (8) and the material guide channel (10) are of an integrated design, and the material guide channel (10) is of a 45° inclined design, and the discharge end of the material guide channel (10) extends into the stone screening drum (9).

5. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: The stone screening drum (9) comprises a dense screen drum (901) and a coarse screen drum (903), and the dense screen drum (901) and the coarse screen drum (903) are fixed via a connecting flange (902). The dense screen drum (901) and the coarse screen drum (903) have the same drum diameter, and the sieve hole diameter of the dense screen drum (901) is smaller than the sieve hole diameter of the coarse screen drum (903).

6. The sand and gravel screening device for construction engineering according to claim 5, characterized in that: The dense screen drum (901) and the coarse screen drum (903) are both integrally welded with a transmission part (905) at one end away from the connecting flange (902), and the outer surface of the transmission part (905) is welded with a driving gear ring (904), and the driving gear ring (904) is respectively engaged with the driving gear (12) below it.

7. The sand and gravel screening device for construction engineering according to claim 6, characterized in that: The internal shape of the rotating groove (13) matches the transmission part (905), and the internal shape of the limiting groove (15) matches the shape of the connecting flange (902). Balls (14) are evenly embedded on both sides of the inner walls of the rotating groove (13) and the limiting groove (15).

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