Rice drying and screening device

Abstract

The rice drying and screening device comprises a screening box, a plurality of supporting legs are fixedly installed on the outer bottom wall of the screening box, an air blowing plate and a screening plate are fixedly installed in the screening box, an air blowing opening is formed in the outer wall of the air blowing plate, and a screening opening is formed in the outer wall of the screening plate. A first rotating shaft is rotatably mounted in the screening box, a first motor connected with the first rotating shaft is fixedly mounted on the outer wall of the screening box, and a plurality of fanning plates are fixedly mounted on the outer wall of the first rotating shaft through a first mounting mechanism. By arranging the belt wheels, the second rotating shaft, the second mounting sleeve, the stirring rods and other assemblies, the first rotating shaft can drive the second rotating shaft to rotate through the two belt wheels connected through the belt, and then the second rotating shaft drives the multiple stirring rods to rotate through cooperation of the second mounting sleeve, so that rice can be prevented from being accumulated in the feeding hopper to cause blockage; and the influence on rice blanking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rice drying, in particular to a rice drying and screening device. Background Art

[0002] Rice drying is an agricultural technology that aims to reduce the moisture content of rice through mechanized means to bring it to a safe storage standard while maintaining grain quality.

[0003] After drying, rice needs to be screened for impurities to meet storage conditions. In the existing technology, most screening devices do not have a component for stirring the rice when feeding it, which causes the rice to easily pile up during the feeding process, causing blockage, and then making it impossible to feed the rice normally, affecting the normal screening work. The practicality is insufficient, so it is necessary to redesign a rice drying and screening device to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a rice drying and screening device.

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

[0006] A rice drying and screening device comprises a screening box, wherein a plurality of supporting legs are fixedly mounted on the outer bottom wall of the screening box, a blowing plate and a screening plate are fixedly mounted inside the screening box, a blowing opening is opened on the outer wall of the blowing plate, and a screening opening is opened on the outer wall of the screening plate, a first rotating shaft is rotatably mounted inside the screening box, a first motor connected to the first rotating shaft is fixedly mounted on the outer wall of the screening box, a plurality of fan plates are fixedly mounted on the outer wall of the first rotating shaft through a first mounting mechanism, an upper hopper connected to the interior is fixedly mounted on the upper end surface of the screening box, a second rotating shaft is rotatably mounted inside the upper hopper, a pulley is fixedly mounted on the outer wall of the second rotating shaft and the first rotating shaft, and the two pulleys are connected for transmission via a belt. The outer wall of the second rotating shaft is fixedly provided with multiple stirring rods through a second mounting mechanism, and the outer wall of the screening box is slidably provided with a plug plate cooperating with the upper hopper through a sliding opening, and the outer bottom wall of the screening box is provided with a first blanking opening communicated with the interior, and the outer bottom wall of the screening box is slidably provided with a first collecting box cooperating with the first blanking opening through a first connecting frame, and the inner walls of both sides of the screening box are fixedly provided with a connecting plate, and the inner walls of the two connecting plates are jointly fixedly connected to the filter plate through an elastic mechanism, and the outer wall of the filter plate is fixedly provided with an extrusion block, and the extrusion shaft is rotatably installed inside the screening box, and the second motor connected to the extrusion shaft is fixedly installed on the upper end surface of the screening box, and the outer wall of the extrusion shaft is connected to the extrusion block through an extrusion mechanism.

[0007] Preferably, the first mounting mechanism comprises a first mounting sleeve fixedly mounted on the outer wall of the first rotating shaft, and each of the fan plates is fixedly mounted on the outer wall of the first mounting sleeve.

[0008] Preferably, the second mounting mechanism comprises a second mounting sleeve fixedly mounted on the outer wall of the second rotating shaft, and each of the stirring rods is fixedly mounted on the outer wall of the second mounting sleeve.

[0009] Preferably, the elastic mechanism comprises a spring telescopic rod fixedly mounted on the inner wall of the connecting plate, and a telescopic end of the spring telescopic rod is fixedly connected to the outer wall of the filter plate.

[0010] Preferably, the extrusion mechanism includes a cam fixedly mounted on the outer wall of the extrusion shaft, and the outer wall of the extrusion block is provided with an extrusion groove that rotates in cooperation with the cam.

[0011] Preferably, the outer bottom wall of the screening box is provided with a second blanking opening cooperating with the filter plate, and the outer bottom wall of the screening box is slidably mounted with a second collecting box cooperating with the second blanking opening via a second connecting frame.

[0012] Beneficial effects of the utility model:

[0013] 1. By arranging components such as a pulley, a second rotating shaft, a second mounting sleeve and a stirring rod, the first rotating shaft can drive the second rotating shaft to rotate through two pulleys connected by a belt, and the second rotating shaft can then drive multiple stirring rods to rotate through the cooperation of the second mounting sleeve, thereby preventing rice from accumulating inside the upper hopper and causing blockage, thereby avoiding affecting the discharge of rice.

[0014] 2. By setting up components such as the extrusion shaft, the cam and the spring telescopic rod, when the cam rotates continuously and contacts the inner wall of the extrusion groove intermittently, the two spring telescopic rods cooperate to realize the reciprocating shaking of the filter plate, thereby making the filter plate shake off the empty rice husks attached to its inner wall, and make it fall through the second drop opening into the second collection box to be collected for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a rice drying and screening device proposed in the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the vertical cross-section structure;

[0017] Figure 3 This is a side structural schematic diagram of a rice drying and screening device proposed in the utility model;

[0018] Figure 4 This is a schematic diagram of the top view of a rice drying and screening device proposed in the present invention;

[0019] Figure 5 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0020] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in FIG.

[0021] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at point C in FIG.

[0022] In the figure: 1 screening box, 2 blowing plate, 3 screening plate, 4 first rotating shaft, 5 first motor, 6 first mounting sleeve, 7 fan plate, 8 upper hopper, 9 second rotating shaft, 10 pulley, 11 second mounting sleeve, 12 stirring rod, 13 plug plate, 14 first connecting frame, 15 first collecting box, 16 connecting plate, 17 spring telescopic rod, 18 filter plate, 19 extrusion block, 20 extrusion shaft, 21 second motor, 22 cam, 23 second connecting frame, 24 second collecting box. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-7 A rice drying and screening device comprises a screening box 1, a plurality of supporting legs are fixedly installed on the outer bottom wall of the screening box 1, a blowing plate 2 and a screening plate 3 are fixedly installed inside the screening box 1, a blowing opening is opened on the outer wall of the blowing plate 2, and a screening opening is opened on the outer wall of the screening plate 3, a first rotating shaft 4 is rotatably installed inside the screening box 1, a first motor 5 connected to the first rotating shaft 4 is fixedly installed on the outer wall of the screening box 1, a plurality of fan plates 7 are fixedly installed on the outer wall of the first rotating shaft 4 through a first mounting mechanism, the first mounting mechanism comprises a first mounting sleeve 6 fixedly mounted on the outer wall of the first rotating shaft 4, and each fan plate 7 is fixedly mounted on the outer wall of the first mounting sleeve 6.

[0025] An upper hopper 8 connected to the interior is fixedly installed on the upper end surface of the screening box 1, and a second rotating shaft 9 is rotatably installed inside the upper hopper 8. Pulleys 10 are fixedly installed on the outer walls of the second rotating shaft 9 and the first rotating shaft 4. The two pulleys 10 are connected for transmission by belts. A plurality of stirring rods 12 are fixedly installed on the outer wall of the second rotating shaft 9 through a second mounting mechanism. The second mounting mechanism includes a second mounting sleeve 11 fixedly mounted on the outer wall of the second rotating shaft 9. Each stirring rod 12 is fixedly mounted on the outer wall of the second mounting sleeve 11. A plug plate 13 cooperating with the upper hopper 8 is slidably installed on the outer wall of the screening box 1 through a sliding opening. A first blanking opening connected to the interior is opened on the outer bottom wall of the screening box 1. A first collecting box 15 cooperating with the first blanking opening is slidably mounted on the outer bottom wall of the screening box 1 through a first connecting frame 14.

[0026] The inner walls of both sides of the screening box 1 are fixedly mounted with connecting plates 16, and the inner walls of the two connecting plates 16 are fixedly connected to the filter plate 18 through an elastic mechanism. The elastic mechanism includes a spring telescopic rod 17 fixedly mounted on the inner wall of the connecting plate 16, and the telescopic end of the spring telescopic rod 17 is fixedly connected to the outer wall of the filter plate 18. The outer wall of the filter plate 18 is fixedly mounted with an extrusion block 19. An extrusion shaft 20 is rotatably mounted inside the screening box 1. A second motor 21 connected to the extrusion shaft 20 is fixedly mounted on the upper end surface of the screening box 1. The outer wall of the extrusion shaft 20 is connected to the extrusion block 19 through an extrusion mechanism. The extrusion mechanism includes a cam 22 fixedly mounted on the outer wall of the extrusion shaft 20. The outer wall of the extrusion block 19 is provided with an extrusion groove that rotates with the cam 22. The outer bottom wall of the screening box 1 is provided with a second blanking opening that cooperates with the filter plate 18, and the outer bottom wall of the screening box 1 is slidably mounted with a second collecting box 24 that cooperates with the second blanking opening through a second connecting frame 23.

[0027] When the present invention is in use, the screening box 1 can be placed stably by means of a plurality of supporting legs. Before the rice is loaded, the inserting plate 13 can block the outlet of the upper hopper 8, and then the rice can be poured into the upper hopper 8. Then the first motor 5 can drive the first rotating shaft 4 to rotate, and the first rotating shaft 4 can drive the plurality of fan plates 7 to rotate through the first mounting sleeve 6, thereby fanning the air through the cooperation of the plurality of fan plates 7 and the fan openings. At the same time, the first rotating shaft 4 can drive the second rotating shaft 9 to rotate through two pulleys 10 connected by belts, and the second rotating shaft 9 can drive the plurality of stirring rods 12 to rotate through the cooperation of the second mounting sleeve 11, thereby preventing the rice from accumulating inside the upper hopper 8 and causing blockage, thereby avoiding affecting the discharge of the rice.

[0028] When the rice needs to be screened, the insert plate 13 can be pulled through the sliding opening to remove the blocking of the insert plate 13 on the outlet of the upper hopper 8. At this time, the rice can fall downwards. In this process, the wind blown out by the fan plate 7 can blow out the empty rice husks in the rice. The blown empty rice husks can be blown out through the screening opening to the inner wall of the filter plate 18, and the full rice can fall downwards into the first collecting box 15 through the cooperation of the first drop opening. At the same time, the second motor 21 can drive the extrusion shaft 20 to rotate, and the extrusion shaft 20 can drive the cam 22 to rotate and mate with the inner wall of the extrusion groove. The cam 22 is in contact with the inner wall of the extrusion groove, so that the extrusion block 19 is forced to drive the filter plate 18 to move and pull the two spring telescopic rods 17. When the cam 22 is not in contact with the inner wall of the extrusion groove, the two spring telescopic rods 17 can drive the filter plate 18 to move and reset. When the cam 22 continues to rotate and intermittently contacts the inner wall of the extrusion groove, the reciprocating shaking of the filter plate 18 can be achieved through the cooperation of the two spring telescopic rods 17, thereby making the filter plate 18 shake off the empty rice husks attached to its inner wall, and make it fall through the second blanking opening into the second collecting box 24 to be collected for subsequent processing.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rice drying and screening device, comprising a screening box (1), characterized in that: The screening box (1) is fixedly provided with a plurality of supporting legs on its outer bottom wall. A blowing plate (2) and a screening plate (3) are fixedly provided inside the screening box (1). The blowing plate (2) is provided with a blowing opening on its outer wall. The screening plate (3) is provided with a screening opening on its outer wall. A first rotating shaft (4) is rotatably provided inside the screening box (1). A first motor (5) connected to the first rotating shaft (4) is fixedly provided on its outer wall. A plurality of fan plates (7) are fixedly provided on the outer wall of the first rotating shaft (4) through a first mounting mechanism. An upper hopper (8) connected to the interior is fixedly provided on the upper end surface of the screening box (1). A second rotating shaft (9) is rotatably provided inside the upper hopper (8). Pulleys (10) are fixedly provided on the outer walls of the second rotating shaft (9) and the first rotating shaft (4). The two pulleys (10) are connected for transmission via a belt. The outer wall of the second rotating shaft (9) is connected for transmission via a second rotating shaft (9). The mounting mechanism is fixedly mounted with a plurality of stirring rods (12); an insert plate (13) cooperating with the upper hopper (8) is slidably mounted on the outer wall of the screening box (1) through a sliding opening; a first blanking opening communicating with the interior is opened on the outer bottom wall of the screening box (1); a first collecting box (15) cooperating with the first blanking opening is slidably mounted on the outer bottom wall of the screening box (1) through a first connecting frame (14); connecting plates (16) are fixedly mounted on the inner walls of both sides of the screening box (1); the inner walls of the two connecting plates (16) are fixedly connected to a filter plate (18) through an elastic mechanism; an extrusion block (19) is fixedly mounted on the outer wall of the filter plate (18); an extrusion shaft (20) is rotatably mounted inside the screening box (1); a second motor (21) connected to the extrusion shaft (20) is fixedly mounted on the upper end surface of the screening box (1); and the outer wall of the extrusion shaft (20) is connected to the extrusion block (19) through an extrusion mechanism.

2. A rice drying and screening device according to claim 1, characterized in that: The first mounting mechanism comprises a first mounting sleeve (6) fixedly mounted on the outer wall of the first rotating shaft (4), and each fan plate (7) is fixedly mounted on the outer wall of the first mounting sleeve (6).

3. The rice drying and screening device according to claim 2, characterized in that: The second mounting mechanism comprises a second mounting sleeve (11) fixedly mounted on the outer wall of the second rotating shaft (9), and each stirring rod (12) is fixedly mounted on the outer wall of the second mounting sleeve (11).

4. The rice drying and screening device according to claim 3, characterized in that: The elastic mechanism comprises a spring telescopic rod (17) fixedly mounted on the inner wall of the connecting plate (16), and the telescopic end of the spring telescopic rod (17) is fixedly connected to the outer wall of the filter plate (18).

5. The rice drying and screening device according to claim 4, characterized in that: The extrusion mechanism comprises a cam (22) fixedly mounted on the outer wall of the extrusion shaft (20); the outer wall of the extrusion block (19) is provided with an extrusion groove for the cam (22) to rotate in coordination.

6. The rice drying and screening device according to claim 5, characterized in that: The outer bottom wall of the screening box (1) is provided with a second blanking opening that cooperates with the filter plate (18), and the outer bottom wall of the screening box (1) is slidably mounted with a second collecting box (24) that cooperates with the second blanking opening via a second connecting frame (23).

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