Gravel discharging device for building construction

Abstract

The invention relates to the technical field of discharging, in particular to a gravel discharging device for building construction, which comprises a machine body, a feeding hole is formed in the upper surface of the machine body, a feeding pipe is mounted on a charging barrel, a stock bin is mounted on the charging barrel, feeding blades are mounted on a rotating rod, and an output shaft of a driving motor is fixedly connected with the rotating rod; and a rotating shaft is mounted in the screening cavity, the rotating shaft is fixedly sleeved with a mounting plate, and a plurality of screening openings are formed in the surface of the mounting plate. According to the gravel screening device, gravel to be unloaded only needs to be put into the stock bin, then the gravel located in the stock bin is evenly introduced into the screening cavity in batches along with rotation of the feeding blades, the gravel introduced into the screening cavity can slide down along the mounting plate, the gravel with the small size can pass through the screening opening, and the gravel with the large size cannot pass through the screening opening; therefore, gravel can be screened in the discharging process, manual screening is not needed, the working efficiency is improved, and potential safety hazards caused by manual feeding and discharging are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of unloading, and in particular to a sand and gravel unloading device for construction. Background Art

[0002] In building construction, sand and gravel of different diameters are usually needed to meet the construction needs of different occasions, so the particle size of the sand and gravel needs to be screened. Before screening the sand and gravel, the sand and gravel need to be unloaded to the ground through a unloading device, and then manually shoveled onto the screening device for screening.

[0003] This repeated manual unloading and loading seriously increases the workload, is inconvenient to operate, and wastes a lot of working time, which leads to low work efficiency. In addition, there are certain safety hazards in manual loading and unloading. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: repeated manual unloading and loading seriously increases the workload, is inconvenient to operate, and wastes a lot of working time, which leads to low work efficiency. In addition, there are certain safety hazards in manual loading and unloading. A sand and gravel unloading device for construction is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sand and gravel unloading device for construction, comprising a machine body, a barrel is fixedly installed on the upper surface of the machine body through a plurality of pillars, a screening chamber is provided in the machine body, a feeding port connected to the screening chamber is provided on the upper surface of the machine body, a feeding pipe covering the feeding port is fixedly installed on the lower surface of the barrel, a silo connected to the inside of the barrel is vertically fixedly installed on the upper surface of the barrel, a circular opening is provided at one end of the barrel, a rotating rod is rotatably installed in the circular opening, a spiral feeding blade is fixedly installed on the surface of the rotating rod, a placement plate is fixedly installed on the side wall of the machine body, a driving motor is fixedly installed on the surface of the placement plate, and the output shaft of the driving motor is fixedly connected to the rotating rod;

[0007] A rotating shaft is installed horizontally in the screening chamber, a mounting plate is fixedly sleeved on the rotating shaft, a plurality of screening ports are equidistantly provided on the surface of the mounting plate, a partition is vertically fixedly installed on the bottom of the screening chamber, a surface of the mounting plate away from the rotating shaft is in sliding contact with a surface of the partition, and the mounting plate is controlled to rotate by a first transmission assembly.

[0008] Preferably, the first transmission assembly includes a round rod, a slider, a first threaded rod, an I-shaped block, two first sprockets and a first chain meshed and wound on the two first sprockets, a rectangular plate is fixedly installed on the back of the body, a mounting opening is provided on the surface of the rectangular plate, the round rod is rotatably installed in the mounting opening, and a reciprocating thread is provided on a part of the surface, the slider is threadedly sleeved on the round rod, one end of the rotating shaft passes through the body and is provided with a thread groove, the first threaded rod is threadedly installed in the thread groove, and an inclined plate is fixedly installed at one end of the thread groove, the surface of the inclined plate is provided with an inclined opening, the I-shaped block is slidably arranged in the inclined opening and fixedly connected to the slider, and the two first sprockets are fixedly sleeved on the output shaft of the driving motor and the round rod respectively.

[0009] Preferably, a conveying assembly is provided in the screening chamber, and the conveying assembly is used to convey the screened sand and gravel.

[0010] Preferably, the conveying assembly includes two rotating rods horizontally rotatably installed in the screening chamber, two pairs of transmission rollers fixedly sleeved on the two rotating rods and two conveyor belts respectively located on both sides of the partition, the two conveyor belts are respectively wound around the two pairs of transmission rollers, a discharge port is opened on the surface of the machine body, and the two rotating rods are controlled to rotate together by the second transmission assembly.

[0011] Preferably, the second transmission assembly includes two second sprockets and a second chain meshing and winding around the two second sprockets, wherein one end of one of the rotating rods passes through the machine body, and the two second sprockets are respectively fixedly sleeved on the end of the rotating rod passing through the machine body and the output shaft of the driving motor.

[0012] Preferably, a sliding groove is provided on the wall of the screening port, a baffle is slidably arranged in the sliding groove, and a plurality of the baffles are controlled to move together by a driving assembly.

[0013] Preferably, the driving assembly includes a second threaded rod and a slide plate threadedly sleeved on the second threaded rod, a plurality of through openings respectively connected to a plurality of slide grooves are opened on the surface of the mounting plate, a connecting rod is fixedly mounted on the surface of the baffle, one ends of the plurality of connecting rods respectively pass through the plurality of through openings and are fixedly connected to the surface of the slide plate, a fixing block is fixedly mounted on the surface of the mounting plate, and one end of the second threaded rod is rotatably connected to the surface of the fixing block.

[0014] Preferably, an adjusting wheel is fixedly mounted on one end of the second threaded rod away from the fixing block, and the surface of the adjusting wheel is provided with anti-slip grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. You only need to put the sand and gravel to be unloaded into the silo, and then as the feeding blade rotates, the sand and gravel in the silo will be passed into the screening chamber in batches and evenly. The sand and gravel in the screening chamber will slide down along the mounting plate. Smaller sand and gravel will pass through the screening port, while larger sand and gravel will not pass through the screening port. In this way, the screening of sand and gravel can be completed during the unloading process, without manual screening, which improves work efficiency and eliminates the safety hazards of manual loading and unloading.

[0017] 2. When the feeding blade is rotating, the mounting plate will also reciprocate at a certain angle under the action of the first transmission component, so that the sand and gravel falling on the mounting plate can move on the mounting plate for multiple times, avoiding the sand and gravel sliding down the inclined surface of the mounting plate directly, resulting in some sand and gravel being unable to be completely screened, thereby improving the accuracy of screening;

[0018] 3. Under the action of the second transmission component, the sand and gravel that pass through the screening port and the sand and gravel that cannot pass through the screening port will fall on two conveyor belts respectively and be transported out of the machine body. There is no need to manually carry the screened sand and gravel, which reduces the labor burden of the staff;

[0019] 4. With the cooperation between the driving assembly and the baffle, the size of the screening port is no longer constant, but the diameter of the screening port can be quickly adjusted according to the size of the sand and gravel to be screened, so that the sand and gravel that can be screened at the screening port are no longer of a certain size, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective structural diagram of a sand and gravel unloading device for construction proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the back three-dimensional structure of a sand and gravel unloading device for construction proposed by the present invention;

[0022] Figure 3 This is a top view of a three-dimensional structural diagram of a sand and gravel unloading device for construction proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the front three-dimensional partial cross-sectional structure of a sand and gravel unloading device for construction proposed by the present invention;

[0024] Figure 5 This is a partial three-dimensional structural schematic diagram of a mounting plate in a sand and gravel unloading device for construction proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of a mounting plate in a sand and gravel unloading device for construction proposed by the present invention;

[0026] Figure 7This is a partial three-dimensional structural schematic diagram of multiple baffles and a driving assembly in a sand and gravel unloading device for construction proposed by the present invention;

[0027] Figure 8 for Figure 1 The enlarged structural diagram at A in the middle;

[0028] Fig. 9 for Figure 3 The enlarged structural diagram at B in the middle;

[0029] Fig.10 for Figure 4 Enlarged structural diagram at point C in the middle.

[0030] In the figure: 1 body, 2 barrel, 3 screening chamber, 4 feed pipe, 5 silo, 6 rotating rod, 7 feeding blade, 8 placement plate, 9 driving motor, 10 rotating shaft, 11 mounting plate, 12 screening port, 13 partition, 14 round rod, 15 slider, 16 first threaded rod, 17 I-shaped block, 18 first sprocket, 19 first chain, 20 thread groove, 21 inclined plate, 22 inclined mouth, 23 rotating rod, 24 driving roller, 25 conveyor belt, 26 discharge port, 27 second sprocket, 28 second chain, 29 through port, 30 baffle, 31 connecting rod, 32 slide plate, 33 second threaded rod, 34 adjusting wheel, 35 slide groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-Figure 10 A sand and gravel unloading device for construction includes a body 1, a barrel 2 is fixedly installed on the upper surface of the body 1 through a plurality of pillars, a screening chamber 3 is opened in the body 1, a feeding port connected to the screening chamber 3 is opened on the upper surface of the body 1, a feeding pipe 4 covering the feeding port is fixedly installed on the lower surface of the barrel 2, a silo 5 connected to the interior of the barrel 2 is vertically fixedly installed on the upper surface of the barrel 2, a circular opening is opened at one end of the barrel 2, a rotating rod 6 is rotatably installed in the circular opening, a spiral feeding blade 7 is fixedly installed on the surface of the rotating rod 6, a placement plate 8 is fixedly installed on the side wall of the body 1, a driving motor 9 is fixedly installed on the surface of the placement plate 8, and the output shaft of the driving motor 9 is fixedly connected to the rotating rod 6.

[0033] A rotating shaft 10 is horizontally installed in the screening chamber 3 for rotation, and a mounting plate 11 is fixedly sleeved on the rotating shaft 10. A plurality of screening ports 12 are equidistantly provided on the surface of the mounting plate 11. A partition plate 13 is vertically fixedly installed on the bottom of the screening chamber 3. The surface of the mounting plate 11 away from the rotating shaft 10 is in sliding contact with the surface of the partition plate 13, and the rotation of the mounting plate 11 is controlled by the first transmission assembly.

[0034] First, all the sand and gravel to be unloaded are put into the silo 5. The sand and gravel in the silo 5 will enter the barrel 2 under the action of its own gravity, and then the driving motor 9 is started. The output shaft of the driving motor 9 will drive the rotating rod 6 and the feeding blade 7 to rotate. During the rotation, the sand and gravel in the barrel 2 will be transported to the feeding pipe 4. The sand and gravel will enter the screening chamber 3 from the feeding pipe 4 and fall on the surface of the mounting plate 11, and then slide down along the inclined mounting plate 11. During the sliding process, some smaller sand and gravel will pass through multiple screening ports 12, while larger ones will not be able to pass through the screening ports 12. The sand and gravel passing through the screening ports 12 will fall on the left side of the partition 13, while the sand and gravel that cannot pass through the screening ports 12 will fall on the right side of the partition 13, thereby achieving the goal of completing the screening of sand and gravel during the unloading process, without the need for manual screening, thereby improving work efficiency and eliminating the safety hazards of manual loading and unloading.

[0035] The first transmission assembly includes a round rod 14, a slider 15, a first threaded rod 16, an I-shaped block 17, two first sprockets 18 and a first chain 19 meshed and wound on the two first sprockets 18. A rectangular plate is fixedly installed on the back of the body 1, and a mounting opening is provided on the surface of the rectangular plate. The round rod 14 is rotatably installed in the mounting opening, and a reciprocating thread is provided on a part of the surface. The slider 15 is threadedly sleeved on the round rod 14, one end of the rotating shaft 10 passes through the body 1 and is provided with a thread groove 20, the first threaded rod 16 is threadedly installed in the thread groove 20, and an inclined plate 21 is fixedly installed at one end of the thread groove 20, and an inclined opening 22 is provided on the surface of the inclined plate 21, the I-shaped block 17 is slidably arranged in the inclined opening 22, and is fixedly connected to the slider 15, and the two first sprockets 18 are fixedly sleeved on the output shaft of the drive motor 9 and the round rod 14 respectively.

[0036] When the driving motor 9 rotates with the rotating rod 6 and the feeding blade 7, the round rod 14 will rotate under the transmission action of the two first sprocket wheels 18 and the first chain 19, and the slider 15 threadedly sleeved on the round rod 14 will carry the I-shaped block 17 to move back and forth laterally. The I-shaped block 17 will slide in the oblique opening 22. When the I-shaped block 17 moves in the direction away from the driving motor 9, the first threaded rod 16 will move toward the thread groove 20 under the action of the inclined surface. Since the first threaded rod 16 cannot rotate, When the I-shaped block 17 moves toward the direction close to the driving motor 9, the first threaded rod 16 moves toward the outside of the thread groove 20 under the action of the inclined surface pressure. At this time, the rotating shaft 10 will rotate with the mounting plate 11 in the direction away from the direction of rotation just now, that is, the mounting plate 11 will reciprocate at a certain angle during the rotation of the feeding blade 7, and the end of the mounting plate 11 away from the rotating shaft 10 will reciprocate up and down.

[0037] When the end of the mounting plate 11 away from the rotating shaft 10 is facing downward, the sand and gravel falling on the mounting plate 11 will slide down along the inclined surface of the mounting plate 11, and when the end of the mounting plate 11 away from the rotating shaft 10 is rotated upward, the sand and gravel located on the mounting plate 11 will slide down from the upper surface of the mounting plate 11 at the end away from the rotating shaft 10 toward the upper surface close to the rotating shaft 10, that is, the sand and gravel located on the mounting plate 11 can be moved on the mounting plate 11 for multiple times to prevent the sand and gravel from sliding directly along the inclined surface of the mounting plate 11, thereby causing some smaller sand and gravel to be moved by larger sand and gravel and unable to pass through the screening port 12, so that this part of the sand and gravel cannot be completely screened, thereby improving the accuracy of screening.

[0038] A conveying assembly is provided in the screening chamber 3, and the conveying assembly is used to convey the screened sand and gravel. The conveying assembly includes two rotating rods 23 horizontally rotatably installed in the screening chamber 3, two pairs of transmission rollers 24 respectively fixedly sleeved on the two rotating rods 23, and two conveyor belts 25 respectively located on both sides of the partition 13. The two conveyor belts 25 are respectively wound around the two pairs of transmission rollers 24. A discharge port 26 is provided on the surface of the machine body 1. The two rotating rods 23 are controlled to rotate together by a second transmission assembly. The second transmission assembly includes two second sprockets 27 and a second chain 28 meshing and winding around the two second sprockets 27. One end of one of the rotating rods 23 passes through the machine body 1, and the two second sprockets 27 are respectively fixedly sleeved on one end of the rotating rod 23 passing through the machine body 1 and on the output shaft of the driving motor 9.

[0039] When the driving motor 9 rotates with the rotating rod 6 and the feeding blade 7, under the transmission action of the two second sprockets 27 and the second chain 28, the two rotating rods 23 will rotate with the multiple transmission rollers 24, so that the two conveyor belts 25 can operate. The smaller sand and gravel that pass through the screening port 12 will fall on the conveyor belt 25 located on the left side of the partition 13, and the larger sand and gravel that cannot pass through the screening port 12 will fall on the conveyor belt 25 located on the right side of the partition 13. The two conveyor belts 25 will transport the screened sand and gravel to the outside of the machine body 1, and there is no need to manually carry the screened sand and gravel, thereby reducing the labor burden of the staff.

[0040] A slide groove 35 is provided on the wall of the screening port 12, and a baffle 30 is slidably arranged in the slide groove 35. The multiple baffles 30 are controlled to move together by a driving assembly. The driving assembly includes a second threaded rod 33 and a slide plate 32 threadedly sleeved on the second threaded rod 33. A plurality of through openings 29 respectively connected to the plurality of slide grooves 35 are provided on the surface of the mounting plate 11. A connecting rod 31 is fixedly installed on the surface of the baffle 30. One ends of the plurality of connecting rods 31 respectively pass through the plurality of through openings 29 and are fixedly connected to the surface of the slide plate 32. A fixing block is fixedly installed on the surface of the mounting plate 11. One end of the second threaded rod 33 is rotatably connected to the surface of the fixing block. An adjusting wheel 34 is fixedly installed on the end of the second threaded rod 33 away from the fixing block, and the surface of the adjusting wheel 34 is provided with anti-slip grooves.

[0041] The adjusting wheel 34 is turned to control the rotation of the second threaded rod 33. At this time, the slide plate 32 threadedly sleeved on the second threaded rod 33 will move with the multiple baffles 30 to control the volume of the multiple baffles 30 entering the multiple screening ports 12 respectively. When the volume of the baffle 30 located in the screening port 12 becomes larger, the size of the sand and gravel that can be screened by the screening port 12 will become smaller. When the volume of the baffle 30 located in the screening port 12 becomes smaller, the size of the sand and gravel that can be screened by the screening port 12 will become larger. The size of the screening port 12 is no longer constant, but the diameter of the screening port 12 can be quickly adjusted according to the size of the sand and gravel to be screened, so that the sand and gravel that can be screened by the screening port 12 is no longer a certain size, thereby improving the practicability of the device.

[0042] In the present invention, firstly, all the sand and gravel to be unloaded are put into the silo 5, and the sand and gravel in the silo 5 will enter the barrel 2 under the action of its own gravity, and then the driving motor 9 is started, and the output shaft of the driving motor 9 will drive the rotating rod 6 and the feeding blade 7 to rotate. During the rotation, the sand and gravel in the barrel 2 will be transported to the feeding pipe 4, and the sand and gravel will enter the screening chamber 3 from the feeding pipe 4 and fall on the surface of the mounting plate 11, and then slide down along the inclined mounting plate 11. During the sliding process, some smaller sand and gravel will pass through multiple screening ports 12, while larger ones will not be able to pass through the screening ports 12. The sand and gravel passing through the screening ports 12 will fall on the left side of the partition 13, while the sand and gravel that cannot pass through the screening ports 12 will fall on the right side of the partition 13, thereby achieving the goal of completing the screening of sand and gravel during the unloading process, without the need for manual screening, thereby improving work efficiency and eliminating the safety hazards of manual loading and unloading.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand and gravel unloading device for construction, comprising a body (1), characterized in that: A barrel (2) is fixedly mounted on the upper surface of the machine body (1) via a plurality of pillars, a screening chamber (3) is provided in the machine body (1), a feed port connected to the screening chamber (3) is provided on the upper surface of the machine body (1), a feed pipe (4) covering the feed port is fixedly mounted on the lower surface of the barrel (2), a silo (5) connected to the interior of the barrel (2) is vertically fixedly mounted on the upper surface of the barrel (2), a circular opening is provided at one end of the barrel (2), a rotating rod (6) is rotatably mounted in the circular opening, a spiral feeding blade (7) is fixedly mounted on the surface of the rotating rod (6), a placement plate (8) is fixedly mounted on the side wall of the machine body (1), a driving motor (9) is fixedly mounted on the surface of the placement plate (8), and an output shaft of the driving motor (9) is fixedly connected to the rotating rod (6); A rotating shaft (10) is installed in the screening chamber (3) for horizontal rotation, a mounting plate (11) is fixedly sleeved on the rotating shaft (10), a plurality of screening ports (12) are equidistantly provided on the surface of the mounting plate (11), a partition plate (13) is vertically fixedly installed on the bottom of the screening chamber (3), a surface of the mounting plate (11) away from the rotating shaft (10) is in sliding contact with a surface of the partition plate (13), and the mounting plate (11) is controlled to rotate by a first transmission assembly.

2. A sand and gravel unloading device for construction according to claim 1, characterized in that: The first transmission assembly comprises a round rod (14), a slider (15), a first threaded rod (16), an I-shaped block (17), two first sprocket wheels (18) and a first chain (19) meshed and wound around the two first sprocket wheels (18); a rectangular plate is fixedly mounted on the back of the machine body (1); a mounting opening is provided on the surface of the rectangular plate; the round rod (14) is rotatably mounted in the mounting opening and a reciprocating thread is provided on a portion of the surface; the slider (15) is threadedly sleeved on the round rod (14); the rotating shaft (1 0) passes through the machine body (1) and is provided with a thread groove (20), the first threaded rod (16) is threadedly installed in the thread groove (20), and an inclined plate (21) is fixedly installed at one end of the thread groove (20), and an inclined opening (22) is provided on the surface of the inclined plate (21), the I-shaped block (17) is slidably arranged in the inclined opening (22) and is fixedly connected to the slider (15), and the two first sprocket wheels (18) are respectively fixedly sleeved on the output shaft of the drive motor (9) and the round rod (14).

3. A sand and gravel unloading device for construction according to claim 1, characterized in that: A conveying assembly is provided in the screening chamber (3), and the conveying assembly is used to convey the screened sand and gravel.

4. A sand and gravel unloading device for construction according to claim 3, characterized in that: The conveying assembly comprises two rotating rods (23) horizontally rotatably mounted in the screening chamber (3), two pairs of transmission rollers (24) respectively fixedly sleeved on the two rotating rods (23), and two conveyor belts (25) respectively located on both sides of the partition (13), the two conveyor belts (25) are respectively wound around the two pairs of transmission rollers (24), a discharge port (26) is provided on the surface of the machine body (1), and the two rotating rods (23) are controlled to rotate together by a second transmission assembly.

5. A sand and gravel unloading device for construction according to claim 4, characterized in that: The second transmission assembly comprises two second sprockets (27) and a second chain (28) meshed and wound around the two second sprockets (27), one end of one of the rotating rods (23) passing through the machine body (1), and the two second sprockets (27) are respectively fixedly sleeved on the end of the rotating rod (23) passing through the machine body (1) and the output shaft of the driving motor (9).

6. A sand and gravel unloading device for construction according to claim 1, characterized in that: The screening port (12) has a sliding groove (35) on its wall, a baffle (30) is slidably arranged in the sliding groove (35), and a plurality of baffles (30) are controlled to move together by a driving assembly.

7. A sand and gravel unloading device for construction according to claim 6, characterized in that: The driving assembly comprises a second threaded rod (33) and a slide plate (32) threadedly sleeved on the second threaded rod (33); a plurality of through openings (29) respectively connected to a plurality of slide grooves (35) are provided on the surface of the mounting plate (11); a connecting rod (31) is fixedly mounted on the surface of the baffle (30); one end of the plurality of connecting rods (31) respectively passes through the plurality of through openings (29) and are fixedly connected to the surface of the slide plate (32); a fixing block is fixedly mounted on the surface of the mounting plate (11); one end of the second threaded rod (33) is rotatably connected to the surface of the fixing block.

8. A sand and gravel unloading device for construction according to claim 7, characterized in that: An adjusting wheel (34) is fixedly mounted on one end of the second threaded rod (33) away from the fixing block, and a surface of the adjusting wheel (34) is provided with anti-slip grooves.

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