CN220759887U - Rice sieving mechanism - Google Patents
Rice sieving mechanism Download PDFInfo
- Publication number
- CN220759887U CN220759887U CN202322493925.1U CN202322493925U CN220759887U CN 220759887 U CN220759887 U CN 220759887U CN 202322493925 U CN202322493925 U CN 202322493925U CN 220759887 U CN220759887 U CN 220759887U
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- Prior art keywords
- screening
- rice
- discharge gate
- screening net
- net
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 56
- 235000009566 rice Nutrition 0.000 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 title claims description 6
- 238000007873 sieving Methods 0.000 title claims description 6
- 240000007594 Oryza sativa Species 0.000 title 1
- 238000012216 screening Methods 0.000 claims abstract description 134
- 241000209094 Oryza Species 0.000 claims abstract description 55
- 230000000670 limiting effect Effects 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 13
- 230000007306 turnover Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses a rice screening device, which relates to the technical field of rice screening and comprises a screening room, wherein a first screening net and a second screening net are arranged in the screening room at intervals up and down. According to the utility model, through the arrangement of the structures such as the turning plate, the torsion spring and the rotating shaft, when rice falls on the first screening net and the second screening net for screening, the turning plate can always block the first discharge hole and the second discharge hole under the action of the torsion spring, so that the rice is prevented from being discharged out of the first discharge hole and the second discharge hole when being more, the motor is started after screening is finished, the motor rotates to drive the two threaded rods to rotate, the threaded rods rotate to drive the two brush plates to brush on the first screening net and the second screening net respectively, the rice is pushed towards the first discharge hole and the second discharge hole, and the movable block is driven to push the turning plate upwards when being slid to a proper position, so that the rice is pushed into the guide hopper, and the rice screening effect can be improved.
Description
Technical Field
The utility model relates to the technical field of rice screening, in particular to a rice screening device.
Background
Among the prior art, the patent of bulletin number CN209393528U discloses a rice sieving mechanism, it includes the screening room, the upper end of screening room is provided with the hopper, the interval is provided with first screening net and first screening net about in the screening room, the lower extreme of first screening net and first screening net all is provided with vibrating assembly, the end of first screening net and second screening net is provided with first discharge gate and second discharge gate respectively, the side lower extreme guide hopper of first discharge gate and second discharge gate, the lower extreme of guide hopper is provided with first collection frame and second collection frame respectively, first collection frame and second collection frame set up respectively on the support body, the lower extreme of support body is provided with the universal wheel, the lower extreme of screening room is provided with the third discharge gate, the lower extreme of third discharge gate is provided with the third discharge gate, this utility model is simple in structure, screening efficiency is high, it is convenient to transport, manual labor intensity has been reduced, dust absorption effect simultaneously, and the practicality is strong.
Above-mentioned device is in the in-service use in-process, first discharge gate and second discharge gate are not sheltered from completely in the screening process, when the rice drops when being screened by vibrations on first screening net and second screening net when rice is more, the rice can not have enough time to screen just directly to fall into the guide hopper of below through first discharge gate and second discharge gate, result in the effect of screening relatively poor, still there is a part rice card to block up the net gape on the screening net after accomplishing simultaneously to influence the screening of next time, consequently need a rice sieving mechanism to satisfy people's demand.
Disclosure of Invention
The utility model aims to provide a rice screening device, which solves the problems that when more rice is screened by vibration, the rice can directly fall into a guide hopper below without enough time for screening, and a part of rice is blocked on a screening net after screening is finished, so that the next screening is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rice sieving mechanism, includes the screening room, the interval is provided with first screening net and second screening net about in the screening room, and the end of first screening net and second screening net is provided with first discharge gate and second discharge gate respectively, and the side lower extreme of first discharge gate and second discharge gate all is provided with the guide hopper, all install the rotation axis in first discharge gate and the second discharge gate, rotate on the rotation axis and install the board, two turn over the board respectively with first discharge gate and second discharge gate looks adaptation, all be equipped with the brush board on first screening net and the second screening net, two brush boards contact with first screening net and second screening net respectively, slidable mounting has the movable block on the brush board, installs the tamp on the movable block, threaded rod on the movable block, rotate and install on the inner wall of screening room.
Preferably, the turning plate is provided with a rotating hole, the rotating shaft is rotatably arranged in the rotating hole, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is arranged on the rotating shaft, and the other end of the torsion spring is arranged on the inner wall of the rotating hole.
Preferably, the two threaded rods are respectively provided with a transmission shaft and a connecting shaft, the transmission shafts are provided with motors, the bottoms of the motors are provided with supporting seats, the supporting seats are arranged on the screening room, the transmission shafts are provided with driving wheels, the driving wheels are sleeved with belts, the belts are sleeved with driven wheels, and the driven wheels are arranged on the connecting shafts.
Preferably, the movable block is provided with a limiting groove, the brush plate is slidably mounted in the limiting groove, a plurality of retention springs are arranged in the limiting groove, one ends of the retention springs are mounted on the brush plate, and the other ends of the retention springs are mounted on the inner wall of the limiting groove.
Preferably, the movable block is provided with a limiting rod in a sliding manner, and the limiting rod is arranged on the inner wall of the screening chamber.
Preferably, a stop block is arranged on the inner wall of the screening chamber, and the stop block is contacted with the turning plate.
Preferably, the bottom of the threaded rod is provided with a limiting shaft, the inner wall of the screening chamber is provided with a retaining groove, and the limiting shaft is rotatably arranged in the retaining groove.
The beneficial effects of the utility model are as follows:
according to the utility model, through the arrangement of the structures such as the turning plate, the torsion spring and the rotating shaft, when rice falls on the first screening net and the second screening net for screening, the turning plate can always block the first discharge hole and the second discharge hole under the action of the torsion spring, so that the rice is prevented from being discharged out of the first discharge hole and the second discharge hole when being more, the rice is not screened, after screening is finished, the motor is started, the motor is rotated to drive the driving wheel to rotate, the driving wheel is rotated to drive the driven wheel to rotate, so that two threaded rods can be driven to rotate, the threaded rods are rotated to drive the two brush plates to brush on the first screening net and the second screening net respectively, the rice is pushed towards the first discharge hole and the second discharge hole, and when the movable block slides to a proper position, the tamping rod is driven to push the turning plate to the guide hopper, so that the rice screening effect can be improved.
According to the utility model, through the arrangement of the limiting grooves, the retaining springs and other structures, when the movable block slides to drive the brush plate to brush on the first screening net and the second screening net, the retaining springs enable the brush plate to be always contacted with the surfaces of the first screening net and the second screening net, so that rice can be completely brushed off, and the screen opening is prevented from being blocked to influence the next screening.
Drawings
Fig. 1 is a schematic structural diagram of a rice screening device according to the present utility model;
FIG. 2 is an inner cross-sectional view of a screening chamber of a rice screening apparatus according to the present utility model;
FIG. 3 is a cross-sectional view showing the connection of the threaded rod and the screening chamber of a rice screening apparatus according to the present utility model;
fig. 4 is a cross-sectional view showing a connection between a rotation shaft and a turning plate of the rice screening apparatus according to the present utility model;
fig. 5 is a cross-sectional view showing the connection of the movable block and the brush plate of the rice screening apparatus according to the present utility model.
In the figure: 1. a screening chamber; 2. a first screening screen; 3. a second screen; 4. a first discharge port; 5. a second discharge port; 6. a guide hopper; 7. turning plate; 8. a movable block; 9. brushing a plate; 10. a tamper; 11. a threaded rod; 12. a limit rod; 13. a rotation shaft; 14. a motor; 15. a transmission shaft; 16. driven wheel; 17. a connecting shaft; 18. a driving wheel; 19. a support base; 20. a stop block; 21. a limiting shaft; 22. a retention groove; 23. defining a slot; 24. a retention spring; 25. a torsion spring; 26. a rotation hole; 27. a belt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-5, a rice screening device comprises a screening room 1, a first screening net 2 and a second screening net 3 are arranged in the screening room 1 at intervals up and down, the tail ends of the first screening net 2 and the second screening net 3 are respectively provided with a first discharging hole 4 and a second discharging hole 5, the side lower ends of the first discharging hole 4 and the second discharging hole 5 are respectively provided with a guide hopper 6, a rotating shaft 13 is respectively arranged in the first discharging hole 4 and the second discharging hole 5, a turning plate 7 is rotatably arranged on the rotating shaft 13, two turning plates 7 are respectively matched with the first discharging hole 4 and the second discharging hole 5, brush plates 9 are respectively arranged on the first screening net 2 and the second screening net 3, the two brush plates 9 are respectively contacted with the first screening net 2 and the second screening net 3, a movable block 8 is slidably arranged on the brush plates 9, a tamping rod 10 is arranged on the movable block 8, a threaded rod 11 is arranged on the movable block 8 in a threaded manner, the threaded rods 11 are rotatably arranged on the inner wall of the screening chamber 1, the two threaded rods 11 are respectively provided with a transmission shaft 15 and a connecting shaft 17, a motor 14 is arranged on the transmission shaft 15, the bottom of the motor 14 is provided with a supporting seat 19, the supporting seat 19 is arranged on the screening chamber 1, the transmission shaft 15 is provided with a driving wheel 18, the driving wheel 18 is sleeved with a belt 27, the belt 27 is sleeved with a driven wheel 16, the driven wheel 16 is arranged on the connecting shaft 17, the bottom of the threaded rod 11 is provided with a limiting shaft 21, the inner wall of the screening chamber 1 is provided with a retaining groove 22, the limiting shaft 21 is rotatably arranged in the retaining groove 22, when rice falls on the first screening net 2 and the second screening net 3 for screening, the turning plate 7 can always block the first discharge port 4 and the second discharge port 5 under the action of a torsion spring 25, the rice is prevented from being discharged out of the first discharge port 4 and the second discharge port 5 without being screened when the rice is more, after screening is completed, the motor 14 is started, the motor 14 rotates to drive the transmission shaft 15 to rotate, the transmission shaft 15 rotates to drive the driving wheel 18 to rotate, the driving wheel 18 rotates to drive the belt 27 to rotate, the belt 27 rotates to drive the driven wheel 16 to rotate, the driven wheel 16 rotates to drive the connecting shaft 17 to rotate, the connecting shaft 17 and the transmission shaft 15 rotate to drive the two threaded rods 11 to rotate, the threaded rods 11 rotate to drive the movable blocks 8 to slide under the limiting effect of the limiting rods 12, the two movable blocks 8 slide to drive the two brush plates 9 to brush on the first screening net 2 and the second screening net 3 respectively, so that rice is pushed to the directions of the first discharge port 4 and the second discharge port 5, and when the movable blocks 8 slide to a proper position, the movable blocks 8 drive the ramming rod 10 to jack the turnover plate 7 away, so that the rice is pushed into the guide hopper 6, and the rice screening effect can be improved.
Referring to fig. 4, in the present utility model, a rotation hole 26 is formed on a turning plate 7, a rotation shaft 13 is rotatably installed in the rotation hole 26, a torsion spring 25 is sleeved on the rotation shaft 13, one end of the torsion spring 25 is installed on the rotation shaft 13, the other end of the torsion spring 25 is installed on the inner wall of the rotation hole 26, the torsion spring 25 enables the turning plate 7 to block the first discharge port 4 and the second discharge port 5 all the time, so as to prevent rice from falling out without screening, when the tamping rod 10 pushes the turning plate 7 open, the torsion spring 25 deforms, and when the tamping rod 10 returns to the original position, the turning plate 7 can be driven to block the first discharge port 4 and the second discharge port 5 again under the elastic force of the torsion spring 25.
Referring to fig. 5, in the present utility model, a limiting groove 23 is formed on the movable block 8, the brush plate 9 is slidably mounted in the limiting groove 23, a plurality of retention springs 24 are disposed in the limiting groove 23, one ends of the retention springs 24 are mounted on the brush plate 9, and the other ends of the retention springs 24 are mounted on the inner wall of the limiting groove 23, and the retention springs 24 enable the brush plate 9 to be always contacted with the surfaces of the first screening net 2 and the second screening net 3, so that the rice can be completely brushed off to prevent the net mouth from being blocked and affecting the next screening.
Referring to fig. 2-3, in the present utility model, a limiting rod 12 is slidably mounted on the movable block 8, the limiting rod 12 is mounted on the inner wall of the screening chamber 1, the limiting rod 12 plays a certain limiting role on the movable block 8, and when the threaded rod 11 rotates, the limiting rod 12 enables the movable block 8 to slide horizontally, so as to drive the brush plate 9 to brush on the first screening net 2 and the second screening net 3 all the time.
Referring to fig. 3, in the present utility model, a stopper 20 is installed on an inner wall of the screening chamber 1, the stopper 20 contacts with the turning plate 7, and the stopper 20 can prevent the turning plate 7 from turning too far to completely block the first discharging port 4 and the second discharging port 5.
The working principle of the utility model is as follows:
when rice falls on the first screening net 2 and the second screening net 3 for screening, the turning plate 7 can always block the first discharge hole 4 and the second discharge hole 5 under the action of the torsion spring 25, prevent the rice from being discharged outside the first discharge hole 4 and the second discharge hole 5 when being not screened, after screening, the motor 14 is started, the motor 14 rotates to drive the transmission shaft 15 to rotate, the transmission shaft 15 rotates to drive the driving wheel 18 to rotate, the driving wheel 18 rotates to drive the belt 27 to rotate, the belt 27 rotates to drive the driven wheel 16 to rotate, the driven wheel 16 rotates to drive the connecting shaft 17 to rotate, the connecting shaft 17 and the transmission shaft 15 rotate to drive the two threaded rods 11 to rotate, the threaded rod 11 rotates to drive the movable block 8 to slide under the limiting action of the limiting rod 12, the two movable blocks 8 slide to drive the two brush plates 9 to brush on the first screening net 2 and the second screening net 3 respectively, the retention springs 24 enable the brush plates 9 to be always contacted with the surfaces of the first screening net 2 and the second screening net 3, rice can be completely brushed down, the rice is prevented from being blocked by a net mouth to influence the next screening, and therefore the rice is pushed towards the first discharge port 4 and the second discharge port 5, when the movable block 8 slides to a proper position, the tamping rod 10 is driven to jack up the turnover plate 7, and the rice is pushed into the guide hopper 6, so that the rice screening effect can be improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a rice sieving mechanism, includes screening room (1), the interval is provided with first screening net (2) and second screening net (3) about in screening room (1), and the end of first screening net (2) and second screening net (3) is provided with first discharge gate (4) and second discharge gate (5) respectively, and the side lower extreme of first discharge gate (4) and second discharge gate (5) all is provided with guide hopper (6), its characterized in that: the utility model discloses a screening machine, including first discharge gate (4) and second discharge gate (5), rotation axis (13) are all installed in first discharge gate (4) and second discharge gate (5), rotate on rotation axis (13) and install turn over board (7), two turn over board (7) respectively with first discharge gate (4) and second discharge gate (5) looks adaptation, all be equipped with brush board (9) on first screening net (2) and second screening net (3), two brush boards (9) respectively with first screening net (2) and second screening net (3) contact, slidable mounting has movable block (8) on brush board (9), installs ram (10) on movable block (8), threaded rod (11) are installed to screw thread on movable block (8), and threaded rod (11) rotate and install on the inner wall of screening room (1).
2. A rice screening apparatus according to claim 1, wherein: the turning plate (7) is provided with a rotating hole (26), the rotating shaft (13) is rotatably arranged in the rotating hole (26), the rotating shaft (13) is sleeved with a torsion spring (25), one end of the torsion spring (25) is arranged on the rotating shaft (13), and the other end of the torsion spring (25) is arranged on the inner wall of the rotating hole (26).
3. A rice screening apparatus according to claim 1, wherein: the two threaded rods (11) are respectively provided with a transmission shaft (15) and a connecting shaft (17), the transmission shaft (15) is provided with a motor (14), the bottom of the motor (14) is provided with a supporting seat (19), the supporting seat (19) is arranged on the screening room (1), the transmission shaft (15) is provided with a driving wheel (18), the driving wheel (18) is sheathed with a belt (27), the belt (27) is sheathed with a driven wheel (16), and the driven wheel (16) is arranged on the connecting shaft (17).
4. A rice screening apparatus according to claim 1, wherein: the movable block (8) is provided with a limiting groove (23), the brush plate (9) is slidably arranged in the limiting groove (23), a plurality of retention springs (24) are arranged in the limiting groove (23), one ends of the retention springs (24) are arranged on the brush plate (9), and the other ends of the retention springs (24) are arranged on the inner wall of the limiting groove (23).
5. The rice screening apparatus of claim 4, wherein: and the movable block (8) is provided with a limiting rod (12) in a sliding manner, and the limiting rod (12) is arranged on the inner wall of the screening chamber (1).
6. A rice screening apparatus according to claim 2, wherein: and a stop block (20) is arranged on the inner wall of the screening chamber (1), and the stop block (20) is contacted with the turning plate (7).
7. A rice screening apparatus according to claim 1, wherein: the bottom of the threaded rod (11) is provided with a limiting shaft (21), the inner wall of the screening chamber (1) is provided with a retaining groove (22), and the limiting shaft (21) is rotatably arranged in the retaining groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493925.1U CN220759887U (en) | 2023-09-12 | 2023-09-12 | Rice sieving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493925.1U CN220759887U (en) | 2023-09-12 | 2023-09-12 | Rice sieving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220759887U true CN220759887U (en) | 2024-04-12 |
Family
ID=90599369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322493925.1U Active CN220759887U (en) | 2023-09-12 | 2023-09-12 | Rice sieving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220759887U (en) |
-
2023
- 2023-09-12 CN CN202322493925.1U patent/CN220759887U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |