Automatic seed threshing and screening all-in-one machine

The automated seed threshing and screening machine features a mechanical linkage design that solves the problem of rice seeds sticking together and having residual shells under humid conditions, achieving efficient threshing and screening results.

CN223958051UActive Publication Date: 2026-03-03明溪县农醒生态农业专业合作社
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Patent Information

Application Number
CN202520015911.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-03-03
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

Existing rice seed threshers are prone to grain sticking together under humid conditions, and residual shells and impurities remain after threshing, affecting screening and separation efficiency.

Method used

Design an automated seed threshing and screening integrated machine to achieve an automated process of threshing, desiccant removal and screening through mechanical structure linkage. It includes a threshing mechanism and a screening mechanism, and uses a motor-driven transmission system and a wind-powered exhaust shell to perform multiple screenings in combination with the reciprocating motion of the movable frame and springs.

Benefits of technology

It improves threshing efficiency and cleanliness, effectively removes the husk and impurities from seeds, and realizes automated and efficient seed threshing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic seed threshing and screening all-in-one machine, which relates to the technical field of intelligent seed threshers and comprises a case and a frame, a feeding hopper is mounted on the surface of the case, a chip removal cover is mounted at one end of the case, a threshing mechanism is mounted at one end of the chip removal cover, a discharge cover is fixedly connected to the bottom of the case, and the discharge cover is fixedly connected to the bottom of the case. And a sieving mechanism is mounted at the bottom of the rack. The motor is started, the motor drives the rotating shaft to rotate, the rotating shaft drives the striking block to rotate, the striking block strikes the screening frame when rotating, the screening frame moves in the movable frame through the movable block, the movable block strikes the spring when moving, and the spring drives the screening frame on the movable block to reciprocate through elastic force. According to the seed threshing device, the screening frame is shaken, so that the seeds are screened again, the screened seeds are discharged through the discharging hopper in the shaking process, shells and impurities left on the seeds can be screened again, and the seed threshing efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of intelligent seed threshing machine technology, specifically to an automated seed threshing and screening integrated machine. Background Technology

[0002] A threshing machine is a harvesting machine that separates the grains of crops from their stalks, primarily referring to harvesting machinery for grain crops. Different types of threshing machines are used depending on the crop. For example, a "rice threshing machine" is suitable for threshing rice; one used for threshing corn is called a "corn threshing machine," and so on. The rice threshing machine, commonly known as a "rice threshing machine," is the most common type of rice threshing machinery. It requires harvesting the rice first, and then uses this machine to separate the rice grains from the stalks. Rice threshing machines are divided into two categories: one is manually driven, called a "human-powered rice threshing machine," a semi-mechanized tool; the other is powered, called a "powered rice threshing machine." The advent of rice threshing machines has greatly reduced the labor intensity of rice harvesting and improved agricultural productivity.

[0003] An intelligent rice seed thresher includes a housing, a drive mechanism, a threshing drum, and a feed inlet. The threshing drum is located inside the housing, with one end extending through the side wall of the housing and outwards. The drive mechanism is fixedly installed at the end of the threshing drum extending outwards. The feed inlet is located on the surface of the housing. A screening mechanism is located inside the housing, and a drying mechanism is located on the side wall of the housing. The drying mechanism includes a fan, a conveying pipe, a distribution plate, and a heating rod. A fan is also located on the side wall of the housing between the screening mechanism and the threshing drum. This invention effectively solves the problem that existing rice seed threshers have limited functionality, and when the rice is damp, the rice grains not only stick together, forming clumps, but some also adhere to the rice leaves, making it difficult to screen and separate the rice grains.

[0004] To solve the problem of seed threshing, the existing technology is to dry the seeds by setting up a drying mechanism. However, after threshing, there are still cases where the seeds have residual shells and impurities, which leads to the problem that the threshing of seeds is not effective enough. Utility Model Content

[0005] The purpose of this utility model is to provide an automated seed threshing and screening machine, which aims to achieve an automated process of threshing, chip removal, screening and discharge through mechanical structure linkage, thereby improving threshing efficiency and cleanliness.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An automated seed threshing and screening integrated machine includes a chassis and a frame. A feeding hopper is installed on the surface of the chassis, a chip removal hood is installed at one end of the chassis, a threshing mechanism is installed at one end of the chip removal hood, a discharge hood is fixedly connected to the bottom of the chassis, and a screening mechanism is installed at the bottom of the frame.

[0008] The threshing mechanism includes a motor and a sieve barrel. The motor is fixedly connected to one side of the frame, and a transmission disc is fixedly connected to the output end of the motor. A belt is driven to the surface of the transmission disc.

[0009] The sieving mechanism includes a fixed plate and a movable frame. The fixed plate is fixedly connected to one end of the frame, and a motor is fixedly connected to one side of the fixed plate. A rotating shaft is fixedly connected to the output end of the motor, and a striking block is fixedly connected to the surface of the rotating shaft.

[0010] A further improvement of this utility model is that: the movable frame is fixedly connected to both sides of the frame, and movable blocks are movably connected to the surface of the movable frame, allowing the sieve frame to move inside the movable frame via the movable blocks.

[0011] A further improvement of this utility model is that: springs are fixedly connected to both ends of the movable block, the other end of the spring is fixedly connected to the surface of the movable frame, a sieve frame is fixedly connected to one end of the movable block, and a discharge hopper is fixedly connected to one end of the sieve frame. When the movable block moves, it hits the spring, and the spring drives the sieve frame on the movable block to move back and forth through its elastic force.

[0012] A further improvement of this utility model is that: one end of the belt is connected to a drive disc, the sieve barrel is fixedly connected inside the machine box, the motor drives the drive disc to rotate, the drive disc drives the belt to rotate, and the belt drives the drive disc to rotate.

[0013] A further improvement of this utility model is that: a rotating rod is fixedly connected to one end of the drive disk, a collar is fixedly connected to the surface of the rotating rod, and a fan blade is fixedly connected to the other end of the rotating rod. When the seed shell falls off, the fan blade at one end of the rotating rod rotates to generate wind, and then the fallen shell is transmitted out of the chip removal hood by the wind.

[0014] A further improvement of this utility model is that: a threshing plate is fixedly connected to the surface of the ring, and a protrusion is fixedly connected to the surface of the threshing plate. The threshing plate beats the seeds, causing the seed shells to fall off.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides an automated seed threshing and screening integrated machine. When seeds fall onto the sieve frame, the motor is started, and the motor drives the rotating shaft to rotate. The rotating shaft drives the striking block to rotate, and the striking block strikes the sieve frame when rotating. The sieve frame moves inside the movable frame through a movable block. When the movable block moves, it hits a spring, and the spring drives the sieve frame on the movable block to move back and forth through its elastic force, causing the sieve frame to shake, thereby screening the seeds again. The screened seeds are discharged through the discharge hopper during the shaking, which allows the residual shells and impurities on the seeds to be screened again, improving the efficiency of seed threshing.

[0017] 2. This utility model provides an automated seed threshing and screening machine. Seeds enter the sieve barrel through a slot at one end. The motor is then started, driving a transmission disc to rotate. The transmission disc drives a belt, which in turn drives a drive disc, which in turn drives a rotating rod. The rotating rod drives a ring, which in turn drives a threshing plate. The threshing plate beats the seeds, causing the seed shells to fall off. The threshed seeds are then separated from the sieve barrel. As the seed shells fall off, a fan blade at one end of the rotating rod rotates, generating airflow. This airflow carries the fallen shells out through a dust removal hood. The sieved seeds are then discharged through the discharge hood, thus effectively threshing the seeds and achieving automated threshing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the threshing mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the threshing plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the sieving mechanism of this utility model.

[0022] In the diagram: 1. Frame; 2. Screening mechanism; 20. Fixed plate; 21. Motor; 22. Rotating shaft; 23. Impact block; 24. Screening frame; 25. Movable block; 26. Movable frame; 27. Spring; 28. Discharge hopper; 3. Machine box; 4. Feed hopper; 5. Chip discharge hood; 6. Threshing mechanism; 60. Motor; 61. Transmission disc; 62. Belt; 63. Drive disc; 64. Rotating rod; 65. Screening barrel; 66. Ring; 67. Threshing plate; 68. Protrusion; 69. Fan blade; 7. Discharge hood. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments: Example 1

[0024] like Figure 1-4 As shown, this utility model provides an automated seed threshing and screening integrated machine, including a machine box 3 and a frame 1. A feeding hopper 4 is installed on the surface of the machine box 3, a chip discharge hood 5 is installed at one end of the machine box 3, a threshing mechanism 6 is installed at one end of the chip discharge hood 5, a discharge hood 7 is fixedly connected to the bottom of the machine box 3, a screening mechanism 2 is installed at the bottom of the frame 1, the threshing mechanism 6 includes a motor 60 and a screening barrel 65, the motor 60 is fixedly connected to one side of the frame 1, a transmission disc 61 is fixedly connected to the output end of the motor 60, a belt 62 is driven to the surface of the transmission disc 61, a drive disc 63 is driven to one end of the belt 62, the screening barrel 65 is fixedly connected to the inside of the machine box 3, a rotating rod 64 is fixedly connected to one end of the drive disc 63, a collar 66 is fixedly connected to the surface of the rotating rod 64, a fan blade 69 is fixedly connected to the other end of the rotating rod 64, a threshing plate 67 is fixedly connected to the surface of the collar 66, and a protrusion 68 is fixedly connected to the surface of the threshing plate 67.

[0025] Specifically, seeds are placed into the machine housing 3 through the feeding hopper 4. The seeds enter the sieve 65 through a slot at one end. Then, the motor 60 is started, which drives the transmission disc 61 to rotate. The transmission disc 61 drives the belt 62 to rotate, which drives the drive disc 63 to rotate. The drive disc 63 drives the rotating rod 64 to rotate, which drives the collar 66 to rotate. The collar 66 then drives the threshing plate 67 to rotate. The threshing plate 67 beats the seeds, causing the seed shells to fall off. The threshed seeds are then separated from the sieve 65. When the seed shells fall off, the fan blades 69 at one end of the rotating rod 64 rotate to generate wind, which then carries the fallen shells out through the chip discharge hood 5. The sieved seeds are discharged through the discharge hood 7.

[0026] Example 2

[0027] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the screening mechanism 2 includes a fixed plate 20 and a movable frame 26. The fixed plate 20 is fixedly connected to one end of the frame 1. A motor 21 is fixedly connected to one side of the fixed plate 20. A rotating shaft 22 is fixedly connected to the output end of the motor 21. A striking block 23 is fixedly connected to the surface of the rotating shaft 22. The movable frame 26 is fixedly connected to both sides of the frame 1. A movable block 25 is movably connected to the surface of the movable frame 26. Springs 27 are fixedly connected to both ends of the movable block 25. The other end of the springs 27 is fixedly connected to the surface of the movable frame 26. A screening frame 24 is fixedly connected to one end of the movable block 25. A discharge hopper 28 is fixedly connected to one end of the screening frame 24.

[0028] Specifically, when the seeds fall onto the sieve frame 24, the motor 21 is started. The motor 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the striking block 23 to rotate. When the striking block 23 rotates, it strikes the sieve frame 24. The sieve frame 24 moves inside the movable frame 26 through the movable block 25. When the movable block 25 moves, it hits the spring 27. The spring 27 drives the sieve frame 24 on the movable block 25 to move back and forth through its elastic force, causing the sieve frame 24 to shake, thereby sieving the seeds again. The sieved seeds are discharged through the discharge hopper 28 while shaking.

[0029] The working principle of this intelligent seed thresher will be explained in detail below.

[0030] like Figure 1-4 As shown, seeds are placed into the machine housing 3 through the feeding hopper 4. The seeds enter the sieve 65 through a slot at one end. The motor 60 is then started, driving the transmission disc 61 to rotate. The transmission disc 61 drives the belt 62, which in turn drives the drive disc 63. The drive disc 63 drives the rotating rod 64, which in turn drives the collar 66. The collar 66 then drives the threshing plate 67 to rotate, which beats the seeds, causing the seed coats to fall off. The threshed seeds are then separated from the sieve 65. As the seed coats fall off, the fan blades 69 at one end of the rotating rod 64 rotate. The generated wind carries the detached shells out through the chip removal hood 5. The sieved seeds are discharged through the discharge hood 7. When the seeds fall onto the sieve frame 24, the motor 21 is started. The motor 21 drives the rotating shaft 22 to rotate, which in turn drives the striking block 23 to rotate. As the striking block 23 rotates, it strikes the sieve frame 24. The sieve frame 24 moves inside the movable frame 26 via the movable block 25. As the movable block 25 moves, it hits the spring 27. The spring 27, through its elasticity, drives the sieve frame 24 on the movable block 25 to move back and forth, causing the sieve frame 24 to shake, thus sieving the seeds again. The sieved seeds are discharged through the discharge hopper 28 while shaking.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An automated seed threshing and screening integrated machine, comprising a casing (3) and a frame (1), characterized in that: The surface of the machine box (3) is equipped with a feeding hopper (4), a chip discharge cover (5) is installed at one end of the machine box (3), a threshing mechanism (6) is installed at one end of the chip discharge cover (5), a discharge cover (7) is fixedly connected to the bottom of the machine box (3), and a screening mechanism (2) is installed at the bottom of the frame (1). The threshing mechanism (6) includes a motor (60) and a sieve barrel (65). The motor (60) is fixedly connected to one side of the frame (1). The output end of the motor (60) is fixedly connected to a transmission disc (61). A belt (62) is connected to the surface of the transmission disc (61). The sieving mechanism (2) includes a fixed plate (20) and a movable frame (26). The fixed plate (20) is fixedly connected to one end of the frame (1). A motor (21) is fixedly connected to one side of the fixed plate (20). A rotating shaft (22) is fixedly connected to the output end of the motor (21). A striking block (23) is fixedly connected to the surface of the rotating shaft (22).

2. The automated seed threshing and screening machine according to claim 1, characterized in that: The movable frame (26) is fixedly connected to both sides of the frame (1), and the surface of the movable frame (26) is movably connected to the movable block (25).

3. The automated seed threshing and screening machine according to claim 2, characterized in that: The movable block (25) is fixedly connected to two ends of a spring (27), and the other end of the spring (27) is fixedly connected to the surface of the movable frame (26). One end of the movable block (25) is fixedly connected to a sieve frame (24), and one end of the sieve frame (24) is fixedly connected to a discharge hopper (28).

4. The automated seed threshing and screening machine according to claim 1, characterized in that: One end of the belt (62) is connected to the drive disc (63), and the sieve barrel (65) is fixedly connected inside the machine box (3).

5. The automated seed threshing and screening machine according to claim 4, characterized in that: One end of the drive disc (63) is fixedly connected to a rotating rod (64), a collar (66) is fixedly connected to the surface of the rotating rod (64), and a fan blade (69) is fixedly connected to the other end of the rotating rod (64).

6. The automated seed threshing and screening machine according to claim 5, characterized in that: A threshing plate (67) is fixedly connected to the surface of the collar (66), and a protrusion (68) is fixedly connected to the surface of the threshing plate (67).