A silage corn cultivation parent threshing and screening all-in-one machine

Abstract

The utility model discloses a silage corn cultivation is with parent thresher and selects integral machine relates to screening technical field, including bottom plate, thresher, one side fixedly connected with the grain frame of thresher, the fixedly connected with the screening frame of grain frame place on the bottom plate, the side of screening frame is provided with the slot of corresponding grain frame position, both sides of screening frame all are provided with the sliding slot, the sliding block of two sliding slots all is slidably arranged, the fixedly connected with the moving frame between two sliding blocks, the inside of moving frame is equipped with first screen, one side fixedly connected with the expansion piece of moving frame, one end of expansion piece penetrates screening frame one side and is connected with drive mechanism. The utility model discloses through horizontal reciprocating screening and two -stage screen cooperation, has realized the effective separation and automatic classification collection of grain and impurity, has improved the cleaning efficiency while guaranteeing low broken rate.

Description

Technical Field

[0001] This utility model relates to the field of screening technology, and in particular to an integrated machine for threshing and screening parent corn for silage cultivation. Background Technology

[0002] As an important forage crop, silage corn requires the selection of superior parent seeds during its cultivation. In the breeding stage, mature corn ears need to be threshed to obtain kernels for sowing. The threshing machine, as a key piece of equipment for this process, effectively separates the kernels from the corn cob, laying the foundation for subsequent seed selection.

[0003] Currently used threshing machines primarily perform basic threshing functions, typically producing a mixture of grains and impurities. They lack the ability to finely screen the threshed material. Even those equipped with simple screens mostly only achieve preliminary impurity separation, lacking the capacity for further grading of the threshed grains. This results in a mixture of whole grains, broken grains, and underdeveloped small grains, failing to meet the high requirements of parent seeds for grain size uniformity and germination rate, thus affecting the effectiveness of precision sowing and the final yield. Therefore, developing a device that integrates threshing and multi-stage fine sorting functions is of great significance. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated threshing and screening machine for parent plants used in silage corn cultivation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A threshing and screening machine for silage corn cultivation includes a base plate and a threshing machine. A grain discharge frame is fixedly connected to one side of the threshing machine. A screening frame is fixedly connected to the base plate at the grain discharge frame. A slot corresponding to the position of the grain discharge frame is opened on one side of the screening frame. Sliding grooves are opened on both sides of the screening frame. A slider is slidably installed in each of the two sliding grooves. A moving frame is fixedly connected between the two sliders. A first screen is installed inside the moving frame. A telescopic block is fixedly connected to one side of the moving frame. One end of the telescopic block passes through one side of the screening frame and is connected to a driving mechanism. Guide frames are fixedly connected to both sides below the moving frame inside the screening frame. A second screen is installed on the inclined surface of each of the two guide frames.

[0006] As a further improvement of this utility model, the driving mechanism includes a support frame fixedly connected to the top of the base plate, a turntable rotatably connected to the top of the support frame, a motor for driving the turntable to rotate installed inside the support frame, a first rotating rod eccentrically fixedly connected to the top of the turntable, a connecting rod rotatably connected to the first rotating rod, a second rotating rod rotatably connected to the other end of the connecting rod, a connecting block rotatably connected to the second rotating rod, and the connecting block fixedly connected to the telescopic block.

[0007] As a further improvement of this utility model, a feed frame is fixedly connected to one side of the top of the thresher, and a rod discharge frame is fixedly connected to the side of the thresher away from the feed frame.

[0008] As a further improvement of this utility model, guide plates are fixedly connected to both sides of the inner wall of the screening frame, and both guide plates are located above the moving frame.

[0009] As a further improvement of this utility model, the bottom of the movable frame is fixedly connected to inclined plates on both sides of the first screen.

[0010] As a further improvement of this utility model, a through groove is provided on one side of the screening frame, and multiple collection frames are inserted into the through groove, with a handle fixedly connected to each collection frame.

[0011] The beneficial effects of this utility model are: By setting up a horizontally reciprocating moving frame and its first screen, the mixture of grains and impurities rolls rather than vibrates on the screen surface. This process effectively promotes the separation of grains and impurities, and uses the inertia of movement to smoothly guide qualified grains to both sides for secondary screening. This reduces the grain breakage rate while achieving automatic and continuous graded collection of impurities, qualified grains and substandard grains, improving the efficiency of cleaning operations and the quality of the finished grain product.

[0012] This invention achieves effective separation and automatic grading and collection of grains and impurities through horizontal reciprocating sieving combined with two-stage screens, improving cleaning efficiency while ensuring a low breakage rate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a parent threshing and screening machine for silage corn cultivation proposed in this utility model; Figure 2 This is a partial cross-sectional structural diagram of the connection between the remaining components after removing the thresher, feed frame, barn frame, grain discharge frame, and bottom plate of the integrated threshing and screening machine for parent corn cultivation proposed in this utility model. Figure 3This is a partial cross-sectional view of the structure of the parent threshing and screening integrated machine for silage corn cultivation proposed in this utility model, showing the connection of the remaining components after removing the threshing machine, feeding frame, barn frame, grain discharge frame, and bottom plate. Figure 4 This utility model presents a schematic diagram of the drive mechanism, telescopic block, moving frame, first screen, and inclined plate connection of a parent threshing and screening integrated machine for silage corn cultivation.

[0014] In the diagram: 1. Base plate, 2. Threshing machine, 3. Feed frame, 4. Bar discharge frame, 5. Pellet discharge frame, 6. Screening frame, 7. Guide plate, 8. Slide chute, 9. Through chute, 10. Collection frame, 11. Handle, 12. Support frame, 13. Slot, 14. Motor, 15. Turntable, 16. First rotating rod, 17. Connecting rod, 18. Second rotating rod, 19. Connecting block, 20. Telescopic block, 21. Moving frame, 22. First screen, 23. Inclined plate, 24. Guide frame, 25. Second screen, 26. Sliding block. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 A threshing and screening machine for parent corn cultivation includes a base plate 1 and a threshing machine 2 fixedly installed thereon. A feed frame 3 for feeding corn with ears is fixedly connected to one side of the top of the threshing machine 2. A cob discharge frame 4 for discharging threshed corn cobs is fixedly connected to one side of the threshing machine 2 away from the feed frame 3. A grain discharge frame 5 for discharging the mixture of threshed kernels and fine impurities is fixedly connected to one side of the middle of the threshing machine 2.

[0017] A sieve frame 6 for cleaning and grading grains is fixedly connected to the bottom plate 1 directly below the grain discharge frame 5. A slot 13 is opened on one side of the sieve frame 6, which corresponds precisely to the outlet position of the grain discharge frame 5 to achieve seamless material transfer. Horizontal sliding grooves 8 are opened on both sides of the box plate of the sieve frame 6. These two sliding grooves 8 together form the guide rail of the moving part. A slider 26 that can reciprocate along its trajectory is slidably installed in each of the two sliding grooves 8. A moving frame 21 driven by the sliders 26 and serving as the main body of the first-stage screening is fixedly connected between the two sliders 26. A first screen 22 for receiving and initially screening the material falling from the grain discharge frame 5 is fixedly installed inside the moving frame 21. Its mesh size allows fine impurities to fall, while qualified grains fall to the gaps between the moving frame 21 and the sieve frame 6 on both sides. Inclined plates 23 for guiding qualified grains that fail to pass through the screen to the sides for discharge are fixedly connected to the bottom of the moving frame 21 on both sides of the first screen 22.

[0018] The inner walls of the screening frame 6 are also fixedly connected to guide plates 7, which guide the material from the discharge frame 5 to the effective screening area of ​​the first screen 22. Both guide plates 7 are located above the moving frame 21 to ensure that the material can fall accurately to the center of the first screen 22. A telescopic block 20 for transmitting external driving force to the moving frame 21 is fixedly connected to one side of the moving frame 21. One end of the telescopic block 20 horizontally penetrates the side panel of the screening frame 6 and is connected to the driving mechanism. This penetration allows the telescopic block 20 to perform reciprocating linear motion.

[0019] The drive mechanism includes a support frame 12 fixedly connected to the top of the base plate 1. The top of the support frame 12 is rotatably connected to a turntable 15, which serves as the core of power conversion, via a bearing seat. A motor 14, which outputs power and drives the turntable 15 to rotate continuously, is fixedly installed inside the support frame 12. A first rotating rod 16, which converts rotational motion into oscillation, is fixedly connected to an eccentric position on the surface of the turntable 15. A connecting rod 17 for transmitting power is rotatably connected to the end of the first rotating rod 16. A second rotating rod 18 is rotatably connected to the other end of the connecting rod 17. A connecting block 19, which is fixed to the telescopic block 20, is rotatably connected to the end of the second rotating rod 18. Thus, the planar oscillation of the connecting rod 17 is ultimately converted into the horizontal linear reciprocating motion of the telescopic block 20, which drives the entire moving frame 21 to perform stable screening operations under the guidance of the slider 26 and the chute 8.

[0020] Inside the screening frame 6, on both sides below the moving frame 21, there are guide frames 24 fixedly connected to perform secondary screening and guidance of the grains passing through the first screen 22. On the inclined surfaces of the two guide frames 24, there are second screens 25 with finer mesh, which are used to further screen out smaller or broken grains and guide the grains of the final qualified grade to the collection area along the inclined surface. A through groove 9 is opened on one side of the screening frame 6. Multiple collection frames 10 are inserted into the through groove 9. The multiple collection frames 10 collect qualified grains, smaller or broken grains and impurities and dust falling from the corresponding area. Each collection frame 10 is fixedly connected to a handle 11 for easy push and pull operation.

[0021] In use, the operator first feeds the corn with ears into the thresher 2 through the feed frame 3. The thresher 2 threshers the corn, and the threshed corn cobs are discharged through the cob discharge frame 4, while the mixture of kernels and fine impurities is discharged through the grain discharge frame 5. The mixture falls through the grain discharge frame 5 into the screening frame 6 directly below it. The guide plate 7 on the side wall of the screening frame 6 guides the falling material to the center area of ​​the first screen 22 inside the moving frame 21. The moving frame 21 slides smoothly in the chute 8 via the sliders 26 on both sides, achieving stable horizontal reciprocating movement. This movement is provided by the drive mechanism: after the motor 14 starts, it drives the turntable 15 to rotate, and through the first rotating rod 16, connecting rod 17, second rotating rod 18 and connecting block 19 fixed to the telescopic block 20, the rotational motion is converted into the horizontal linear reciprocating motion of the telescopic block 20, thereby driving the entire moving frame 21 to reciprocate. Under the action of the horizontal reciprocating movement of the moving frame 21, the mixture falling on the first screen 22 rolls accordingly. During this process, fine dust and impurities fall through the mesh of the first screen 22. Grains of the correct size, unable to pass through the mesh, continue to roll under the influence of the moving frame 21, gradually moving to both sides and eventually falling through the gaps between the sides of the moving frame 21 and the inner wall of the screening frame 6. Fine impurities falling from the first screen 22 are guided by the two inclined plates 23 at the bottom of the moving frame 21 and collect in the collection frame 10 located directly below the center of the screening frame 6. This collection frame 10 is the largest of the five side-by-side collection frames 10. Qualified grains falling through the gaps on both sides of the moving frame 21 are then screened a second time on the second screens 25 on the guide frames 24 on both sides. Complete and plump qualified grains are blocked by the second screens 25 and slide down the inclined screen surface, eventually falling into the two collection frames 10 located on either side of the largest collection frame 10 in the center. Smaller or broken grains pass through the mesh of the second screen 25 and fall into the outermost collection frame 10. Operators can use handle 11 to pull out the corresponding collection frame 10 from the channel 9 to collect impurities, qualified grains and inferior grains respectively, thus completing the entire cleaning and grading process.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A threshing and screening machine for parent stock in silage corn cultivation, comprising a base plate (1) and a threshing machine (2), characterized in that, A grain discharge frame (5) is fixedly connected to one side of the threshing machine (2). A screening frame (6) is fixedly connected to the bottom plate (1) at the grain discharge frame (5). A slot (13) corresponding to the position of the grain discharge frame (5) is opened on one side of the screening frame (6). Sliding grooves (8) are opened on both sides of the screening frame (6). A slider (26) is slidably provided in both sliding grooves (8). A moving frame (21) is fixedly connected between the two sliders (26). A first screen (22) is provided inside the moving frame (21). A telescopic block (20) is fixedly connected to one side of the moving frame (21). One end of the telescopic block (20) passes through one side of the screening frame (6) and is connected to a driving mechanism. Guide frames (24) are fixedly connected to both sides below the moving frame (21) inside the screening frame (6). A second screen (25) is provided on the inclined surface of both guide frames (24).

2. The integrated threshing and screening machine for parent stock in silage corn cultivation according to claim 1, characterized in that, The driving mechanism includes a support frame (12) fixedly connected to the top of the base plate (1). A turntable (15) is rotatably connected to the top of the support frame (12). A motor (14) for driving the turntable (15) to rotate is installed inside the support frame (12). A first rotating rod (16) is eccentrically fixedly connected to the top of the turntable (15). A connecting rod (17) is rotatably connected to the first rotating rod (16). A second rotating rod (18) is rotatably connected to the other end of the connecting rod (17). A connecting block (19) is rotatably connected to the second rotating rod (18). The connecting block (19) is fixedly connected to the telescopic block (20).

3. The integrated threshing and screening machine for parent stock in silage corn cultivation according to claim 1, characterized in that, A feed frame (3) is fixedly connected to one side of the top of the thresher (2), and a rod discharge frame (4) is fixedly connected to the side of the thresher (2) away from the feed frame (3).

4. The integrated threshing and screening machine for parent stock in silage corn cultivation according to claim 1, characterized in that, The inner walls of the screening frame (6) are fixedly connected to guide plates (7), and both guide plates (7) are located above the moving frame (21).

5. The integrated threshing and screening machine for parent stock in silage corn cultivation according to claim 1, characterized in that, The bottom of the movable frame (21) is fixedly connected to inclined plates (23) on both sides of the first screen (22).

6. The integrated threshing and screening machine for parent stock in silage corn cultivation according to claim 1, characterized in that, A through groove (9) is provided on one side of the screening frame (6), and a plurality of collection frames (10) are inserted into the through groove (9). Each collection frame (10) is fixedly connected with a handle (11).

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