A soybean planting seed screening device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN BAILIMIN AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-24
AI Technical Summary
In existing soybean seed screening devices, the friction between seeds produces tiny seed coat fragments and internal tissue powder that easily adhere to the inner wall of the hopper. Broken seed fragments get stuck in corners and are difficult to clean, and moisture causes oily sludge-like residue to remain, affecting the screening effect.
A seed screening device including an auxiliary cleaning mechanism and a screening mechanism was designed. The servo motor drives the eccentric wheel to drive the impact column to intermittently impact the outer wall of the hopper. Combined with the horizontal movement of the screening plate, synchronous cleaning and screening are achieved to avoid the formation of sludge from residual materials.
Effectively loosens residue on the inner wall of the hopper, reduces the number of manual cleaning operations, ensures screening effect, and guarantees efficient screening of soybean seeds.
Smart Images
Figure CN224542295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of seed screening devices, specifically a seed screening device for soybean cultivation. Background Technology
[0002] Soybean seeds may contain impurities such as stones, clods of soil, and stem fragments. Seed screening devices for soybean cultivation are used to screen soybean seeds. By removing inferior, unripe, or damaged seeds and ensuring that the selected seeds are relatively uniform in size, the germination rate in the field is improved, and the seedlings grow uniformly, ultimately laying the foundation for high soybean yields. Common screening devices include vibrating screens.
[0003] However, in existing screening devices, the friction between soybean seeds during use generates tiny seed coat fragments and internal tissue powder, which easily adhere to the inner wall of the hopper. Broken seed fragments also tend to get stuck in the corners or edges of the hopper. After the equipment stops, the remaining debris tends to accumulate and, due to moisture and mixing with soybean oil, forms an oily sludge-like mixture that is difficult to clean. Therefore, those skilled in the art have provided a seed screening device for soybean cultivation to solve the problems mentioned in the background section. Utility Model Content
[0004] The purpose of this invention is to provide a seed screening device for soybean cultivation to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A seed screening device for soybean cultivation includes a mounting bracket, a mounting base fixed to the bottom of the mounting bracket, a feeding hopper fixed between the inner walls of the two sides of the mounting bracket, a fixing bracket fixed to the top of the crossbeam of the mounting bracket, a reinforcing bracket fixed to the outside of the crossbeam of the mounting bracket, an auxiliary cleaning mechanism installed on the top of the fixing bracket, and a screening mechanism provided on the top of the mounting bracket. The auxiliary cleaning mechanism includes a metal casing. A servo motor is fixed to one inner wall of the metal casing. An eccentric wheel is fixed to one end of the output shaft of the servo motor. A fixed block is installed on one inner wall of the metal casing. A fixed plate is fixed to the outside of the fixed block. A return spring is connected to one side of the fixed plate. A movable plate is connected to one end of the return spring. A guide limit rod is fixed to the top of the movable plate. A lifting plate is fixed to the top of the guide limit rod. An impact column is installed on the top of the lifting plate. After the servo motor is started, the eccentric wheel is driven to rotate through the output shaft of the servo motor. When the eccentric wheel rotates, it can push the movable plate to move upward. The movable plate squeezes one end of the return spring and causes the movable plate to drive the lifting plate to move through the guide limit rod. The guide limit rod passes through the fixed plate and is limited by the fixed plate. The lifting plate can drive the impact column to move, so that one end of the impact column hits the outer wall of the hopper. After the movable plate moves, the return spring provides elasticity to reset, so that one end of the impact column can intermittently hit the outer wall of the hopper.
[0006] As a further improvement of this utility model: the metal shell and the fixed bracket are fixedly connected, and the corresponding surface of the movable plate is in contact with the eccentric wheel.
[0007] As a further improvement of this utility model, a limiting hole is provided inside the metal shell, and the size of the limiting hole is adapted to the size of the impact column.
[0008] As a further improvement of this utility model, the fixing plate has a guide hole inside, the size of which is adapted to the size of the guide limiting rod.
[0009] As a further embodiment of this utility model: the screening mechanism includes a transmission rod, one end of which is rotatably connected to a connecting bracket via a rotating shaft, and one end of the connecting bracket is rotatably connected to an assembly bracket via a rotating shaft. The end of the assembly bracket away from the connecting bracket is rotatably connected to a screening plate via a rotating shaft. A belt protective housing is fixed to the outside of the mounting bracket, and four support rollers are installed on the top of the mounting bracket. A metal handle is fixed to the outside of the screening plate. After the servo motor is started, the transmission rod drives the connecting bracket to rotate. When the connecting bracket rotates, it drives one end of the assembly bracket to move, causing the assembly bracket to intermittently pull and push the screening plate to move horizontally. The support rollers play a role in guiding and limiting the screening plate.
[0010] As a further embodiment of this utility model: one end of the output shaft of the servo motor is fixed with a pulley, one end of the transmission rod is fixed with a pulley, a transmission belt is installed on the outer side of the two pulleys, and both pulleys and the transmission belt are located inside the belt protective housing.
[0011] As a further improvement of this utility model: the outer side of the metal handle is provided with anti-slip texture, and the bottom of the screening plate is provided with a guide groove adapted to the size of the supporting roller.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This device is equipped with an auxiliary cleaning mechanism, which allows one end of the impact column to intermittently impact the outer wall of the hopper. The impact can effectively loosen the seed coat fragments and internal tissue powder on the inner wall of the hopper. At the same time, it is beneficial to discharge the broken seed fragments in the corners or edges of the hopper. This avoids the situation where the material remaining in the hopper after the soybean seed screening is completed and the machine is stopped, is more likely to remain due to the loss of the dynamic cleaning of soybean seeds, and forms a mud-like mixture due to humidity and mixing with soybean oil. This reduces the number of manual cleanings and ensures the screening effect during subsequent soybean seed screening. 2. With the addition of a screening mechanism, soybean seeds can be screened as the screening plate moves back and forth. A servo motor is used as a single power source to synchronously complete the screening of soybean seeds on the screening plate and the intermittent impact cleaning of the hopper. The impact frequency is determined by the rotation speed of the servo motor and is naturally synchronized with the movement of the screening plate, which is beneficial to the screening of soybean seeds. Attached Figure Description
[0013] Figure 1 A perspective view of a seed screening device for soybean cultivation; Figure 2 This is a schematic diagram of a seed screening device for soybean cultivation from another angle. Figure 3 This is a schematic diagram of the auxiliary cleaning mechanism in a seed screening device for soybean cultivation. Figure 4 This is a schematic diagram of the screening mechanism in a seed screening device for soybean cultivation.
[0014] In the diagram: 1. Mounting bracket; 2. Mounting base; 3. Feed hopper; 4. Fixed bracket; 5. Reinforcing bracket; 6. Auxiliary cleaning mechanism; 61. Metal shell; 62. Servo motor; 63. Eccentric wheel; 64. Fixing block; 65. Fixing plate; 66. Return spring; 67. Movable plate; 68. Guide limit rod; 69. Lifting plate; 610. Impact column; 7. Screening mechanism; 71. Transmission rod; 72. Connecting bracket; 73. Assembly bracket; 74. Screening plate; 75. Belt protection shell; 76. Metal handle; 77. Support roller. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-4 In this embodiment of the present invention, a seed screening device for soybean planting includes a mounting bracket 1, a mounting base 2 fixed at the bottom of the mounting bracket 1, a feeding hopper 3 fixed between the inner walls of the two sides of the mounting bracket 1, a fixing bracket 4 fixed at the top of the crossbeam of the mounting bracket 1, a reinforcing bracket 5 fixed at the outer side of the crossbeam of the mounting bracket 1, an auxiliary cleaning mechanism 6 installed at the top of the fixing bracket 4, and a screening mechanism 7 provided at the top of the mounting bracket 1. The auxiliary cleaning mechanism 6 includes a metal housing 61. A servo motor 62 is fixed to one inner wall of the metal housing 61. An eccentric wheel 63 is fixed to one end of the output shaft of the servo motor 62. A fixing block 64 is installed on one inner wall of the metal housing 61. A fixing plate 65 is fixed to the outside of the fixing block 64. A return spring 66 is connected to one side of the fixing plate 65. A movable plate 67 is connected to one end of the return spring 66. A guide limit rod 68 is fixed to the top of the movable plate 67. A lifting plate 69 is fixed to the top of the guide limit rod 68. An impact post 610 is installed on the top of the lifting plate 69. After the servo motor 62 is started, the eccentric wheel 63 is driven to rotate through the output shaft of the servo motor 62. When the eccentric wheel 63 rotates, it can push the movable plate 67 to move upward. The movable plate 67 compresses the return spring. One end of the spring 66 is connected to the movable plate 67, which drives the lifting plate 69 to move via the guide limit rod 68. The guide limit rod 68 passes through the fixed plate 65 and is limited by the fixed plate 65. The lifting plate 69 can drive the impact column 610 to move, so that one end of the impact column 610 hits the outer wall of the hopper 3. After the movable plate 67 moves, the return spring 66 provides elastic force to reset, so that one end of the impact column 610 can intermittently hit the outer wall of the hopper 3. The metal shell 61 and the fixed bracket 4 are fixedly connected. The corresponding surface of the movable plate 67 is in contact with the eccentric wheel 63. The metal shell 61 has a limit hole inside, the size of which is adapted to the size of the impact column 610. The fixed plate 65 has a guide hole inside, the size of which is adapted to the size of the guide limit rod 68.
[0017] In one embodiment of this utility model, the screening mechanism 7 includes a transmission rod 71. One end of the transmission rod 71 is rotatably connected to a connecting bracket 72 via a rotating shaft. One end of the connecting bracket 72 is rotatably connected to an assembly bracket 73 via a rotating shaft. The end of the assembly bracket 73 away from the connecting bracket 72 is rotatably connected to a screening plate 74 via a rotating shaft. A belt protection housing 75 is fixed to the outside of the mounting bracket 1. Four support rollers 77 are mounted on the top of the mounting bracket 1. A metal handle 76 is fixed to the outside of the screening plate 74. A pulley is fixed to one end of the output shaft of the servo motor 62. A pulley is fixed to one end of the transmission rod 71. Two pulleys are fitted with... The assembly is equipped with a drive belt, and both pulleys and the drive belt are located inside the belt protection housing 75. The outer side of the metal handle 76 is provided with anti-slip texture. The bottom of the screening plate 74 is provided with a guide groove that matches the size of the support roller 77. After the servo motor 62 is started, the output shaft of the servo motor 62 drives the transmission rod 71 to rotate through the drive belt and pulleys, so that the transmission rod 71 drives the connecting bracket 72 to rotate. When the connecting bracket 72 rotates, it drives one end of the assembly bracket 73 to move, so that the assembly bracket 73 intermittently pulls and pushes the screening plate 74 to move horizontally. The support roller 77 plays a role in guiding and limiting the screening plate 74.
[0018] The working principle of this utility model is as follows: This device is equipped with an auxiliary cleaning mechanism 6. When screening soybean seeds, after starting the servo motor 62, the output shaft of the servo motor 62 drives the eccentric wheel 63 to rotate. When the eccentric wheel 63 rotates, it can move the movable plate 67 upward. The movable plate 67 squeezes one end of the reset spring 66, and the movable plate 67 drives the lifting plate 69 to move through the guide limit rod 68. The guide limit rod 68 passes through the fixed plate 65 and is limited by the fixed plate 65. The lifting plate 69 can drive the impact column 610 to move, so that one end of the impact column 610 hits the outer wall of the feeding hopper 3. After the movable plate 67 moves, the reset spring 66 provides elasticity to reset, so that one end of the impact column 610 can intermittently hit the outer wall of the feeding hopper 3. The impact can effectively loosen the seed coat fragments and internal tissue powder on the inner wall of the feeding hopper 3. At the same time, it is beneficial to discharge the broken seed fragments in the corners or edges of the feeding hopper 3, avoiding the residue in the feeding hopper 3 after the soybean seed screening is completed and the machine stops. Because the material loses the dynamic cleaning of soybean seeds, it is more likely to remain and form a muddy mixture due to moisture and mixing with soybean oil. This reduces the number of manual cleanings and ensures the screening effect during subsequent soybean seed screening. With the screening mechanism 7, when the servo motor 62 is started, the output shaft of the servo motor 62 drives the transmission rod 71 to rotate through the transmission belt and pulley. The transmission rod 71 drives the connecting bracket 72 to rotate. When the connecting bracket 72 rotates, it drives one end of the assembly bracket 73 to move, causing the assembly bracket 73 to intermittently pull and push the screening plate 74 to move horizontally. The support roller 77 guides and limits the screening plate 74. When the screening plate 74 moves back and forth, it can screen soybean seeds. The servo motor 62, as a single power source, synchronously completes the soybean seed screening of the screening plate 74 and the intermittent impact cleaning of the discharge hopper 3. The impact frequency is determined by the speed of the servo motor 62 and is naturally synchronized with the movement of the screening plate 74, which is beneficial to the soybean seed screening.
[0019] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A seed screening device for soybean cultivation, comprising a mounting bracket (1), characterized in that, The bottom of the mounting bracket (1) is fixed with a mounting base (2), the inner walls of both sides of the mounting bracket (1) are fixed with a hopper (3), the top of the crossbeam of the mounting bracket (1) is fixed with a fixing bracket (4), the outer side of the crossbeam of the mounting bracket (1) is fixed with a reinforcing bracket (5), the top of the fixing bracket (4) is equipped with an auxiliary cleaning mechanism (6), and the top of the mounting bracket (1) is equipped with a screening mechanism (7). The auxiliary cleaning mechanism (6) includes a metal shell (61), a servo motor (62) is fixed on one inner wall of the metal shell (61), an eccentric wheel (63) is fixed at one end of the output shaft of the servo motor (62), a fixing block (64) is installed on one inner wall of the metal shell (61), a fixing plate (65) is fixed on the outside of the fixing block (64), a return spring (66) is connected to one side of the fixing plate (65), a movable plate (67) is connected to one end of the return spring (66), a guide limit rod (68) is fixed to the top of the movable plate (67), a lifting plate (69) is fixed to the top of the guide limit rod (68), and an impact column (610) is installed on the top of the lifting plate (69).
2. The seed screening device for soybean cultivation according to claim 1, characterized in that, The metal shell (61) and the fixed bracket (4) are fixedly connected, and the corresponding surface of the movable plate (67) is in contact with the eccentric wheel (63).
3. The seed screening device for soybean cultivation according to claim 2, characterized in that, The metal casing (61) has a limiting hole inside, the size of which is adapted to the size of the impact post (610).
4. The seed screening device for soybean cultivation according to claim 2, characterized in that, The fixed plate (65) has a guide hole inside, the size of which is adapted to the size of the guide limit rod (68).
5. The seed screening device for soybean cultivation according to claim 1, characterized in that, The screening mechanism (7) includes a transmission rod (71), one end of which is rotatably connected to a connecting bracket (72) via a rotating shaft, one end of which is rotatably connected to an assembly bracket (73) via a rotating shaft, and the end of the assembly bracket (73) away from the connecting bracket (72) is rotatably connected to a screening plate (74) via a rotating shaft. A belt protection housing (75) is fixed to the outside of the mounting bracket (1), four support rollers (77) are installed on the top of the mounting bracket (1), and a metal handle (76) is fixed to the outside of the screening plate (74).
6. The seed screening device for soybean cultivation according to claim 5, characterized in that, One end of the output shaft of the servo motor (62) is fixed with a pulley, and one end of the transmission rod (71) is fixed with a pulley. A transmission belt is installed on the outer side of the two pulleys, and both pulleys and the transmission belt are located inside the belt protection housing (75).
7. A seed screening device for soybean cultivation according to claim 6, characterized in that, The metal handle (76) has anti-slip texture on the outside, and the bottom of the screening plate (74) has a guide groove that matches the size of the support roller (77).