Rapid screening device for hybrid rice seeds
By designing a rapid screening device for hybrid rice seeds, utilizing a motor-driven rotating rod and gear system, along with a fan and multi-layer screens, the problem of removing impurities and empty husks from rice seeds in existing technologies has been solved, achieving efficient and thorough rice seed screening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUXIONG PREFECTURE FUYI SEED IND GROUP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-15
AI Technical Summary
Existing rice screening devices are inefficient at removing impurities and empty husks from rice seeds, wasting human and material resources.
A rapid screening device for hybrid rice seeds was designed. The device uses a motor-driven rotating rod to drive gears and crushing rollers to separate impurities from the rice seeds, and uses a fan and a multi-layer screen system to screen out clean rice seeds.
This method achieves efficient and thorough removal of impurities and empty husks from rice seeds, reducing the consumption of human and material resources and improving screening efficiency and accuracy.
Smart Images
Figure CN224237465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rapid screening of hybrid rice seeds, and more particularly to a rapid screening device for hybrid rice seeds. Background Technology
[0002] A rapid screening device for hybrid rice seeds is a device for quickly screening rice seeds, designed to select clean rice seeds free of impurities. Most screening devices consist of a simple workbench and sieve to complete the screening of rice seeds.
[0003] The existing method for screening rice is as follows: rice is placed into the feed inlet, which guides the rice seeds into a screen to remove larger stones and debris, and then the rice seeds are collected. However, rice seeds contain many impurities, including larger stones and fragments, smaller ones, and even lighter empty husks. Since the empty husks are the same size as the rice seeds, an additional air filter is needed, consuming significant manpower and resources. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a rapid screening device for hybrid rice seeds, which aims to improve the separation of impurities adhering to rice seeds and the screening of empty shells and dust.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid screening device for hybrid rice seeds, comprising a workbench, a dust cover fixedly connected to the top of the workbench, a feeding platform fixedly connected to the inner wall of the dust cover, multiple rotating rods rotatably connected to the top of the workbench, a motor installed on the top of the workbench, one of the rotating rods fixedly connected to the output end of the motor, a gear fixedly connected to the outer wall of the rotating rod, a rolling roller fixedly connected to the top of the rotating rod, a pulley rotatably connected to the outer wall of one of the rotating rods, belts fitted onto the outer walls of the multiple pulleys, a rotating block rotatably connected to the outer wall of one of the pulleys, a fixed rod fixedly connected to the outer wall of the rotating block, a first screen rotatably connected to the outer wall of the fixed rod, a slide rail slidably connected to the outer wall of the first screen, a second screen fixedly connected to the top of the front end of the workbench, a guide groove provided on the inner wall of the workbench, and a fixing component provided on the top of the dust cover.
[0006] Furthermore, the fixing component includes a feed inlet, a plurality of guide vanes are fixedly connected to the outer wall of the feed inlet, a fan is fixedly connected to the front side of the inner wall of the feed inlet, and a third screen is fixedly connected to the rear side of the inner wall of the feed inlet.
[0007] Furthermore, the slide rail is fixedly connected to the top front end of the workbench, and the second screen is fixedly connected to the inner wall of the guide channel.
[0008] Furthermore, multiple of the aforementioned rolling rollers are rotatably connected to the top of the conveying platform, which is fixedly connected to the inner wall of the dust cover.
[0009] Furthermore, a short rotating rod is fixedly connected to the top center of the workbench, and one of the pulleys is rotatably connected to the outer wall of the short rotating rod.
[0010] Furthermore, multiple springs are provided inside the multiple rolling rollers, and multiple extrusion heads are slidably connected inside the multiple rolling rollers, with the multiple springs located at the bottom of the extrusion heads.
[0011] Furthermore, the two gears are meshed together, and the plurality of extrusion heads are slidably connected.
[0012] Furthermore, multiple guide vanes are arranged in a fan shape at the top of the feed inlet, and the blower and the third screen are arranged opposite each other.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, a motor drives a rotating rod, which in turn drives a gear. The gear drives a right-side gear, which in turn drives a right-side rotating rod. The rotating rod drives two top-mounted crushing rollers to rotate. The rotation of the rollers pushes the rice seeds forward at a uniform speed and simultaneously separates impurities adhering to the seeds. The rotating rod also drives a lower pulley, which in turn drives another pulley to rotate. The rotation of this second pulley causes the upper rotating block and the fixed rod on the rotating block to move together, thereby driving the first screen to reciprocate. This removes impurities larger than the rice seeds, which fall onto the second screen. Impurities smaller than the rice seeds fall into the guide trough, and the impurity-free rice seeds roll down from the second screen. This device can more thoroughly remove impurities of all sizes.
[0015] 2. In this invention, by pouring rice seeds into the feed inlet, the guide vanes at the feed inlet cause the rice seeds to fall evenly. When the rice seeds pass through the blower, the wind blows away impurities and dust smaller than the rice seeds through the third screen. This device allows for more fine and clean screening of the rice seeds. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the rapid screening device for hybrid rice seeds proposed in this utility model;
[0017] Figure 2 This is an internal schematic diagram of the rapid screening device for hybrid rice seeds proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the transmission structure of the rapid screening device for hybrid rice seeds proposed in this utility model.
[0019] Figure 4This is a side-view perspective view of the rapid screening device for hybrid rice seeds proposed in this utility model.
[0020] Figure 5 This is a schematic diagram of the feed inlet of the rapid screening device for hybrid rice seeds proposed in this utility model;
[0021] Figure 6 This is a schematic diagram of the crushing roller part of the rapid screening device for hybrid rice seeds proposed in this utility model.
[0022] Legend:
[0023] 1. Guide vane; 2. Feed inlet; 3. Fan; 4. Dust cover; 5. First screen; 6. Second screen; 7. Guide channel; 8. Workbench; 9. Slide rail; 10. Roller; 11. Gear; 12. Belt; 13. Motor; 14. Third screen; 15. Pulley; 16. Rotating block; 17. Fixed rod; 18. Rotating rod; 19. Feeding platform; 20. Short rotating rod; 21. Spring; 22. Extrusion head. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figure 1 , Figure 2 , Figure 3 An embodiment of this utility model provides a rapid screening device for hybrid rice seeds, including a workbench 8, a dust cover 4 fixedly connected to the top of the workbench 8, a feeding platform 19 fixedly connected to the inner wall of the dust cover 4, multiple rotating rods 18 rotatably connected to the top of the workbench 8, a motor 13 installed on the top of the workbench 8, one of the rotating rods 18 fixedly connected to the output end of the motor 13, a gear 11 fixedly connected to the outer wall of the rotating rod 18, a rolling roller 10 fixedly connected to the top of the rotating rod 18, a pulley 15 rotatably connected to the outer wall of one of the rotating rods 18, belts 12 sleeved on the outer walls of the multiple pulleys 15, a rotating block 16 rotatably connected to the outer wall of one of the pulleys 15, a fixing rod 17 fixedly connected to the outer wall of the rotating block 16, a first screen 5 rotatably connected to the outer wall of the fixing rod 17, a slide rail 9 slidably connected to the outer wall of the first screen 5, a second screen 6 fixedly connected to the top of the front end of the workbench 8, a guide groove 7 opened on the inner wall of the workbench 8, and a fixing component provided on the top of the dust cover 4.
[0026] Specifically, motor 13 drives rotating rod 18, rotating rod 18 drives gear 11, gear 11 drives another gear 11 for transmission, the other gear 11 drives another rotating rod 18 to rotate, which in turn causes the crushing roller 10 to rotate. The crushing roller 10 can separate impurities attached to the rice seeds. One of the rotating rods 18 drives pulley 15 to rotate. The two pulleys 15 are connected by belt 12. The pulleys 15 cause rotating block 16 to rotate. The fixed rod 17 fixed on rotating block 16 will cause the first screen 6 to reciprocate, which can cause impurities larger than rice seeds to roll off. Impurities smaller than rice seeds fall into the second screen 2 together with the rice seeds. Impurities smaller than rice seeds will fall into the guide trough 7, and the rice seeds will roll off and be collected on the right side of the device.
[0027] Reference Figure 1 , Figure 5 The fixed assembly includes a feed inlet 2, with multiple guide vanes 1 fixedly connected to the outer wall of the feed inlet 2, a fan 3 fixedly connected to the front side of the inner wall of the feed inlet 2, and a third screen 14 fixedly connected to the rear side of the inner wall of the feed inlet 2.
[0028] Specifically, the rice grains enter the device through the feed inlet 2. After entering, they are diverted by the guide plate 1, preventing all the rice grains from flooding into the device. When the rice grains fall, they pass through the fan 3, which blows air backward. The air force causes dust and impurities that are lighter than the rice grains to be screened out through the third screen 14.
[0029] Reference Figure 1 The slide rail 9 is fixedly connected to the top front end of the workbench 8, and the second screen 6 is fixedly connected to the inner wall of the guide channel 7.
[0030] Specifically, the slide rail 9 has the side of the first screen 5 inside, and the reciprocating motion of the first screen 5 will remain parallel inside the slide rail 9.
[0031] Reference Figure 2 Multiple rolling rollers 10 are rotatably connected to the top of the conveying platform 19, which is fixedly connected to the inner wall of the dust cover 4.
[0032] Specifically, when the rolling roller 10 rotates, it causes the rice seeds on the conveying platform 19 to move forward at a uniform speed from the middle, and the dust cover 4 can prevent the rice seeds from falling from the side.
[0033] Reference Figure 4 A short rotating rod 20 is fixedly connected to the top center of the workbench 8, and one of the pulleys 15 is rotatably connected to the outer wall of the short rotating rod 20.
[0034] Specifically, the short rotating rod 20 serves a fixing function to fix the position of one of the pulleys 15.
[0035] Reference Figure 6Multiple springs 21 are installed inside the multiple pressing rollers 10, and multiple extrusion heads 22 are slidably connected inside the multiple pressing rollers 10. The multiple springs 21 are located at the bottom of the extrusion heads 22.
[0036] Specifically, when the multiple sliding joints of the extrusion head 22 press against the rice seeds and impurities, they apply pressure to separate the impurities and crush larger impurities into several smaller pieces. When the extrusion head 22 is depressurized, it will return to its original position due to the action of the spring 21.
[0037] Reference Figure 2 The two gears 11 are meshed and connected, and the multiple extrusion heads 22 are slidably connected.
[0038] Specifically, the gear 11 on the left side of the device drives the gear 11 on the right side, and both gears rotate the rolling roller 10 via the rotating rod 18.
[0039] Multiple guide vanes 1 are arranged in a fan shape at the top of the feed inlet 2, and the blower 3 and the third screen 14 are arranged opposite each other.
[0040] Specifically, the shape of the guide plate 1 can prevent all the rice seeds from directly entering the feed inlet 2, and the opposing direction of the fan 3 and the third screen 14 can prevent substances lighter than rice seeds from flying around.
[0041] Working principle: When using this rapid screening device for hybrid rice seeds, rice is first put into the feed inlet 2, and after being diverted by the guide plate 1, it falls freely downwards. When the rice passes through the fan 3, it is blown by the wind to the third screen 14. Normal rice is not affected by the wind, but empty husks and dust will be screened out by the third screen 14. After the rice with dust and empty husks removed falls downwards to the conveyor platform 19, it is concentrated in the center by the dust cover 4 to prevent it from falling, and then blocked in the center by the crushing roller 10.
[0042] Driven by motor 13, the left rotating rod 18 drives the left gear 11 and the crushing roller 10 to rotate together. The left gear 11 drives the right gear 11 to rotate, and the right gear 11 drives the right rotating rod 18 and the upper crushing roller 10 to rotate. The rotation of the two crushing rollers 10 carries the rice forward at a constant speed. The rice passing through the crushing rollers 10 is crushed by the extrusion head 22. The extrusion head 22 moves within the cavity of the crushing roller 10. Supported by spring 21, the extrusion head 22 that is not in contact with other extrusion heads 22 will spring back to its normal state. When the extrusion head 22 crushes the rice, it separates the soil and other impurities from the rice. The rice separated from the soil and other impurities continues to fall forward to the first screen 5.
[0043] The first screen 5 is fixedly connected to the pulley 15 on the rotating rod 18. The pulley 12 drives another pulley 15 to rotate together. The rotation of the rear pulley 15 causes the rotating block 16 to rotate. The fixed rod 17 fixed on the rotating block 16 and the first screen 5 fixed on the fixed rod 17 reciprocate back and forth. The mesh of the first screen 5 is slightly larger than that of rice. Other impurities larger than rice that fall into the first screen 5 will roll forward from the first screen 5. Rice and impurities smaller than rice will fall into the second screen 6 through the first screen 5. The mesh of the second screen 6 is slightly smaller than that of rice. Other impurities smaller than rice that fall into the second screen 6 will fall into the guide trough 7. Clean rice without impurities will fall into the right side of the second screen 6.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rapid screening device for hybrid rice seeds, comprising a workbench (8), characterized in that: A dust cover (4) is fixedly connected to the top of the workbench (8), and a conveyor plate (19) is fixedly connected to the inner wall of the dust cover (4). Multiple rotating rods (18) are rotatably connected to the top of the workbench (8). A motor (13) is installed on the top of the workbench (8). One of the rotating rods (18) is fixedly connected to the output end of the motor (13). A gear (11) is fixedly connected to the outer wall of the rotating rod (18). A rolling roller (10) is fixedly connected to the top of the rotating rod (18). A pulley (11) is rotatably connected to the outer wall of one of the rotating rods (18). 5) A belt (12) is fitted on the outer wall of a plurality of pulleys (15). A rotating block (16) is rotatably connected to the outer wall of one of the pulleys (15). A fixing rod (17) is fixedly connected to the outer wall of the rotating block (16). A first screen (5) is rotatably connected to the outer wall of the fixing rod (17). A slide rail (9) is slidably connected to the outer wall of the first screen (5). A second screen (6) is fixedly connected to the top of the front end of the workbench (8). A guide groove (7) is opened on the inner wall of the workbench (8). A fixing component is provided on the top of the dust cover (4).
2. The rapid screening device for hybrid rice seeds according to claim 1, characterized in that: The fixed assembly includes a feed inlet (2), a plurality of guide vanes (1) are fixedly connected to the outer wall of the feed inlet (2), a fan (3) is fixedly connected to the front side of the inner wall of the feed inlet (2), and a third screen (14) is fixedly connected to the rear side of the inner wall of the feed inlet (2).
3. The rapid screening device for hybrid rice seeds according to claim 1, characterized in that: The slide rail (9) is fixedly connected to the top front end of the workbench (8), and the second screen (6) is fixedly connected to the inner wall of the guide groove (7).
4. The rapid screening device for hybrid rice seeds according to claim 1, characterized in that: Multiple of the rolling rollers (10) are rotatably connected to the top of the conveying platform (19), which is fixedly connected to the inner wall of the dust cover (4).
5. The rapid screening device for hybrid rice seeds according to claim 1, characterized in that: A short rotating rod (20) is fixedly connected to the top center of the workbench (8), and one of the pulleys (15) is rotatably connected to the outer wall of the short rotating rod (20).
6. The rapid screening device for hybrid rice seeds according to claim 1, characterized in that: Multiple springs (21) are provided inside the multiple rolling rollers (10), and multiple extrusion heads (22) are slidably connected inside the multiple rolling rollers (10). The multiple springs (21) are provided at the bottom of the extrusion heads (22).
7. The rapid screening device for hybrid rice seeds according to claim 6, characterized in that: The two gears (11) are meshed together, and the plurality of extrusion heads (22) are slidably connected.
8. The rapid screening device for hybrid rice seeds according to claim 2, characterized in that: Multiple guide vanes (1) are arranged in a fan shape on the top of the feed inlet (2), and the blower (3) and the third screen (14) are arranged opposite each other.