Plant seed threshing and cleaning all-in-one machine
By designing an integrated plant seed threshing and washing machine, which combines spiral discharge and wind-powered water washing, the problems of incomplete threshing and mechanical damage are solved, achieving efficient integrated threshing and washing and improving the impurity removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
Existing threshing and washing machines are ineffective at removing impurities from light seeds, often resulting in incomplete threshing, high mechanical damage rate, and high impurity content, making it difficult to meet the needs of large-scale planting.
A plant seed threshing and washing integrated machine was designed. It adopts a spiral discharge structure and a reverse spiral structure, combined with wind disturbance and water washing, to extend the screening path and realize the integration of threshing and washing. Seeds and impurities are separated by a screen plate group and wet threshing rollers.
It improves threshing efficiency and impurity removal, reduces mechanical damage to seeds, lowers the breakage rate, and enhances the ability to separate seeds from impurities.
Smart Images
Figure CN224069242U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of threshing machine technology, specifically to an integrated machine for threshing and washing plant seeds. Background Technology
[0002] Current technology typically requires manual threshing, involving manually picking and threshing the pods of milkvetch. This method is labor-intensive, inefficient, and cannot meet the harvesting needs of large-scale planting. To improve efficiency, combine harvesters are sometimes modified for threshing. Rice, wheat, or rapeseed combine harvesters are modified to adjust parameters such as the threshing drum speed and sieve size to thresh the milkvetch seeds.
[0003] However, when threshing milkvetch seeds, in order to remove impurities and sclerotia, it is necessary to soak the seeds with chemicals. Before soaking, the seeds need to be wiped, and after threshing, they need to be cleaned. Existing threshing devices can add a cleaning structure to the threshing machine to achieve the purpose of threshing and cleaning in one step.
[0004] However, existing plant seeds are usually threshed using threshing machines, which can easily lead to incomplete threshing. When removing impurities from seeds of different sizes, such as milkvetch pods, the poor adaptability can result in low threshing purity. Furthermore, milkvetch seeds are easily damaged mechanically during the threshing process, resulting in a high breakage rate. At the same time, because milkvetch seeds are small and light, they are easily mixed with impurities, and existing cleaning devices cannot effectively separate seeds from impurities, resulting in a high impurity content in the seeds. Utility Model Content
[0005] The purpose of this invention is to provide a plant seed threshing and washing integrated machine to solve the technical problem that existing threshing and washing integrated machines are unable to efficiently remove impurities from seeds with a lighter texture.
[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:
[0007] A plant seed threshing and washing integrated machine includes a frame, a threshing roller is arranged on the frame, a wind-dispersing roller is arranged on the threshing roller, and a conveying roller is arranged at one end of the threshing roller;
[0008] A sieve plate group is set below the threshing roller, and a second sieve plate group is set below the conveying roller. A wet threshing roller is set at one end of the first and second sieve plate groups. The wet threshing roller passes through the washing tank and conveys the seeds to the discharge port.
[0009] In a preferred embodiment of this utility model, a cutting table is provided at the feed end of the frame, and the discharge end of the cutting table is connected to the feed end of the threshing roller.
[0010] As a preferred embodiment of the present invention, the longitudinal section of the sieve plate group is an inverted V-shaped structure. The sieve plate group is composed of a first sieve plate and a first guide plate. The downward inclined end of the first sieve plate and the upward inclined end of the first guide plate are close to each other. The first sieve plate intercepts impurities on it and guides them to one end, while the seeds fall onto the first guide plate and are guided to the other end.
[0011] As a preferred embodiment of the present invention, the two sieve plate group is composed of a second sieve plate and a second guide plate. The downward inclined end of the second sieve plate and the upward inclined end of the second guide plate are close to each other. The second sieve plate intercepts impurities on it and guides them to one end, while the seeds fall onto the second guide plate and are guided to the other end.
[0012] As a preferred embodiment of this utility model, a feed hopper is provided at one end of the wet dehydration roller. The feed hopper is located at the low point where the first guide plate and the second guide plate converge. The feed hopper conveys the seeds to the wet dehydration roller through the feed pipe.
[0013] The wet stripping roller is provided with spiral blades, and a mesh cylinder is provided outside the wet stripping roller, the mesh cylinder wrapping the spiral blades inside.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] This utility model adopts a spiral discharge form to form an integrated washing and sieving machine, which is beneficial to extend the sieving path while threshing and sieving. With the help of the reverse spiral structure, the seeds are washed and sieved at the same time after threshing, reducing the need for seed transfer and washing operations. It can achieve the purpose of washing and removing impurities while increasing the threshing and sieving of seeds. With the help of wind disturbance and water washing, the seeds and impurities are further separated, improving the impurity removal effect. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0017] Figure 1 A top-sectional view of the overall structure of this utility model is provided for the embodiment of the present utility model;
[0018] Figure 2 A schematic diagram of the overall front section structure is provided for the embodiments of this utility model;
[0019] Figure 3A side sectional view of a sieve plate assembly is provided for an embodiment of this utility model;
[0020] Figure 4 A side sectional view of the wet stripping roller is provided for an embodiment of this utility model.
[0021] The labels in the diagram represent the following:
[0022] 10 - Frame; 20 - Threshing roller; 30 - Conveyor roller; 40 - Wet threshing roller;
[0023] 11-Cutting platform; 12-Washing tank;
[0024] 21-Wind-disrupting roller; 22-First screen plate assembly; 211-Fan; 221-First screen plate; 222-First guide plate; 223-Screw; 224-Nut; 225-Spring;
[0025] 31-Second sieve plate assembly; 311-Second sieve plate; 312-Second guide plate;
[0026] 41-Feed hopper; 42-Feed pipe; 401-Spiral blade; 402-Net cylinder. Detailed Implementation
[0027] 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.
[0028] like Figure 1 and Figure 2 As shown, this utility model provides a plant seed threshing and washing integrated machine, including a frame 10, a threshing roller 20 is provided on the frame 10, a wind-dispersing roller 21 is provided on the threshing roller 20, and a conveying roller 30 is provided at one end of the threshing roller 20.
[0029] A screen plate group 22 is set below the threshing roller 20, and a second screen plate group 31 is set below the conveying roller 30. A wet threshing roller 40 is set at one end of the convergence of the first screen plate group 22 and the second screen plate group 31. The wet threshing roller 40 passes through the washing tank 12 to convey the seeds to the discharge port.
[0030] This utility model adopts a spiral discharge form to form an integrated washing and sieving machine, which is beneficial to extend the sieving path while threshing and sieving. With the help of the reverse spiral structure, the seeds are washed and sieved at the same time after threshing, reducing the need for seed transfer and washing operations. It can achieve the purpose of washing and removing impurities while increasing the threshing and sieving of seeds. With the help of wind disturbance and water washing, the seeds and impurities are further separated, improving the impurity removal effect.
[0031] The frame 10 is used in conjunction with the power drive mechanism of a traditional threshing machine, such as a motor vehicle, to move and thresh. During the movement, the plant stalks with seeds are rolled into the threshing roller 20. The plant stalks are fed into the conveyor roller 30 through the threshing roller 20, where they are rubbed and the seeds fall onto the first sieve plate group 22 and the second sieve plate group 31. After being sieved by the first sieve plate group 22 and the second sieve plate group 31, the seeds are collected into the wet threshing roller 40 for washing and impurity removal.
[0032] It can achieve the purpose of cleaning while threshing and sieving, improve the efficiency of seed harvesting, threshing and cleaning, achieve the purpose of threshing and cleaning in one step, and is more conducive to improving the impurity removal effect during threshing.
[0033] A fan 211 is installed inside the wind-dispersing roller 21. The fan 211 includes a rotating motor and a fan. An air outlet is opened on the lower surface of the wind-dispersing roller 21. When the plant stalk enters the conveying roller 30 through the threshing roller 20, the wind-dispersing roller 21 plays a role in guiding the movement of the plant stalk between the threshing roller 20 and the conveying roller 30. The fan 211 applies wind force to the plant stalk, which helps to better separate the seeds, thereby enhancing the threshing effect. The wind force can better peel the seeds, thereby reducing the mechanical damage that milkvetch seeds are prone to during the threshing process and improving the threshing effect.
[0034] like Figure 1 and Figure 2 As shown, a cutting table 11 is provided at the feed end of the frame 10, and the discharge end of the cutting table 11 is connected to the feed end of the threshing roller 20.
[0035] The cutting table 11 scoops the plant stalks into the machine body at the feeding end of the frame 10. A conveyor belt is set on the frame 10 above the cutting table 11 to guide the plant stalks through the gap between the conveyor belt and the cutting table 11 into the device for threshing.
[0036] It facilitates the feeding of materials, allows for better control of the plant stems entering the device, increases friction on the plant stems, and helps the seeds separate better.
[0037] A drive motor is installed on the frame 10. The drive motor is connected to the threshing roller 20 and the conveying roller 30, which drives the rotation of the threshing roller 20 and the conveying roller 30, thereby causing the plant stalks to move and rub within the device, thus achieving the purpose of threshing.
[0038] like Figure 2 As shown, the longitudinal section of a sieve plate group 22 has an inverted V-shaped structure. The sieve plate group 22 consists of a first sieve plate 221 and a first guide plate 222. The downward inclined end of the first sieve plate 221 and the upward inclined end of the first guide plate 222 are close to each other. The first sieve plate 221 intercepts impurities on it and guides them to one end, while the seeds fall onto the first guide plate 222 and are guided to the other end.
[0039] The two-layer design facilitates the separation and guidance of impurities and seeds. When seeds pass through the threshing roller 20, impurities are held on the first sieve plate 221. The tilt of the first sieve plate 221 naturally guides the impurities out. After passing through the first sieve plate 221, the seeds fall onto the first guide plate 222. The first guide plate 222 is tilted in the opposite direction to the first sieve plate 221, guiding the sieved seeds out from the other end, which facilitates the classification and processing of impurities and seeds.
[0040] like Figure 2 and Figure 3 As shown, the two-sieve plate group 31 is composed of a second sieve plate 311 and a second guide plate 312. The downward inclined end of the second sieve plate 311 and the upward inclined end of the second guide plate 312 are close together. The second sieve plate 311 intercepts impurities on it and guides them to one end, while the seeds fall onto the second guide plate 312 and are guided to the other end.
[0041] When the seeds pass through the conveyor roller 30, impurities are left on the second sieve plate 311. With the inclination of the second sieve plate 311, the impurities are naturally guided out. After the seeds pass through the second sieve plate 311, they fall onto the second guide plate 312. The second guide plate 312 is tilted in the opposite direction to the second sieve plate 311, guiding the sieved seeds out from the other end, which facilitates the classification and processing of impurities and seeds.
[0042] The frame 10 has a mesh structure below the conveyor roller 30, which allows the plant stem to move to the other end through the conveyor roller 30, while the seeds separate from the plant stem and fall onto the second sieve plate group 31 for sieving.
[0043] Both the first screen plate group 22 and the second screen plate group 31 are installed inside the frame 10. Screws 223 are provided at the connection between the first screen plate 221 and the first guide plate 222, and at the connection between the second screen plate 311 and the second guide plate 312. The length of the screws 223 passes through one end of the first screen plate 221 and the first guide plate 222, and one end of the second screen plate 311 and the second guide plate 312, respectively. Nuts 224 are threaded to both ends of the screws 223. By rotating the nuts 224, the fixed height of the nuts 224 on the screws 223 can be adjusted, thereby adjusting the distance between the first screen plate 221 and the first guide plate 222, and between the second screen plate 311 and the second guide plate 312.
[0044] Furthermore, springs are provided between the screw 223 and the first sieve plate 221 and the first guide plate 222, and between the second sieve plate 311 and the second guide plate 312. This facilitates flexible buffering and increases vibration and friction between the first sieve plate 221 and the first guide plate 222, and between the second sieve plate 311 and the second guide plate 312. This enhances the threshing and sieving effect of the seeds on the first sieve plate 221 and the second sieve plate 311, reduces mechanical damage to the seeds during the threshing process, lowers the breakage rate, and enhances the separation effect between the seeds and impurities.
[0045] like Figure 2 and Figure 4 As shown, a feed hopper 41 is provided at one end of the wet dehydration roller 40. The feed hopper 41 is located at the low point where the first guide plate 222 and the second guide plate 312 converge. The feed hopper 41 conveys the seeds to the wet dehydration roller 40 through the feed pipe 42.
[0046] A spiral blade 401 is provided on the wet stripping roller 40, and a mesh cylinder 402 is provided outside the wet stripping roller 40, which wraps the spiral blade 401 inside.
[0047] Both the first guide plate 222 and the second guide plate 312 are inclined to collect the sieved seeds into the feed hopper 41, and then feed them into the wet desiccant roller 40 through the feed pipe 42 for cleaning and impurity removal.
[0048] During the rotation of the wet threshing roller 40, the seeds are continuously rolled and propelled by the spiral blades 401, increasing the friction of the seeds in the mesh cylinder 402 and expanding the contact between the seeds and the cleaning liquid in the washing tank 12, thus achieving the purpose of threshing and cleaning in one step. This also helps to enhance the threshing and impurity removal effect. Combined with the water washing method, it helps to reduce the mechanical damage that milkvetch seeds are easily subjected to during the threshing process and better separate them from impurities.
[0049] One end of the wet stripping roller 40 is located on the outer wall of the washing tank 12 and is equipped with a rotating motor to drive the wet stripping roller 40 to rotate for water washing and impurity removal. The washing tank 12 is equipped with an inlet pipe and an outlet pipe. The inlet pipe is connected to an external water tank to facilitate the replenishment of cleaning liquid, and the outlet pipe and valve facilitate the control of waste liquid discharge.
[0050] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.
Claims
1. A plant seed threshing and cleaning all-in-one machine, characterized in that, The utility model provides a threshing machine, including frame (10), be provided with threshing roller (20) on frame (10), be provided with wind disturbance roller (21) on threshing roller (20), be provided with conveying roller (30) on one end of threshing roller (20); One screen plate group (22) is arranged below the threshing roller (20), and two screen plate groups (31) are arranged below the conveying roller (30), one end of the one screen plate group (22) and the two screen plate groups (31) is provided with a wet threshing roller (40), and the wet threshing roller (40) is arranged through a cleaning tank (12) to convey seeds to a discharge port.
2. The plant seed threshing and cleaning all-in-one machine according to claim 1, characterized in that, A cutting table (11) is arranged at the feeding end of the frame (10), and the discharge end of the cutting table (11) is connected to the feeding end of the threshing roller (20).
3. The plant seed threshing and cleaning all-in-one machine according to claim 1, characterized in that, The longitudinal section of the one screen plate group (22) is in inverted V-shaped structure, the one screen plate group (22) is composed of a first screen plate (221) and a first guide plate (222), the downward inclined one end of the first screen plate (221) is close to the upward inclined one end of the first guide plate (222), the first screen plate (221) intercepts impurities thereon and guides them to one end, and seeds fall onto the first guide plate (222) and are guided to the other end.
4. The plant seed threshing and cleaning all-in-one machine according to claim 3, characterized in that, The two screen plate groups (31) are composed of a second screen plate (311) and a second guide plate (312), the downward inclined one end of the second screen plate (311) is close to the upward inclined one end of the second guide plate (312), the second screen plate (311) intercepts impurities thereon and guides them to one end, and seeds fall onto the second guide plate (312) and are guided to the other end.
5. The plant seed threshing and cleaning all-in-one machine according to claim 4, characterized in that, One end of the wet threshing roller (40) is provided with a feeding hopper (41), the feeding hopper (41) is located at the low point of the first guide plate (222) and the second guide plate (312), and the feeding hopper (41) is connected to the wet threshing roller (40) through a feeding pipe (42) to convey seeds onto the wet threshing roller (40); The wet threshing roller (40) is provided with a spiral blade (401), and a mesh tube (402) is arranged outside the wet threshing roller (40), and the mesh tube (402) wraps the spiral blade (401) inside.