Rocker arm type seed sorting device

Abstract

The utility model discloses a rocker arm type seed sorting device, which belongs to the field of seed sorting, and comprises a base, the upper part of the base is movably connected with a rocker arm, one side of the base is pivoted with a plurality of telescopic devices, and the other ends of the telescopic devices are pivoted with the lower part of the rocker arm; two supports are symmetrically arranged on the upper portion of the rocker arm, sorting cylinders are arranged on the supports, a gap is reserved between the two sorting cylinders, one end of each sorting cylinder is open, the other end of each sorting cylinder is closed, and seeds are filled in the sorting cylinders. The upper portion of the rocker arm is fixedly connected with a supporting frame, a plurality of draught fans are arranged on the supporting frame, the two sides of each draught fan are installed on a fixing base through pin shafts, and the fixing base is fixedly installed on the supporting frame. According to the seed winnowing device, the telescopic device is used for driving the rocker arm to swing on the base in a reciprocating mode, seeds are dumped between the two sorting cylinders in a reciprocating mode, impurities mixed in the seeds are blown out through the draught fan, automatic circulating winnowing of the seeds is achieved, and the seed winnowing effect is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of seed sorting, and specifically relates to a rocker arm type seed sorting device. Background Technology

[0002] Seed sorting is a crucial step in the preparation stage of agricultural production, directly affecting crop yield and quality. High-quality seeds should be plump, undamaged, and free of impurities to ensure germination rate and vigor after sowing. However, in practice, raw seeds harvested from the field often contain various impurities such as fine sand, gravel, and soil. These impurities not only affect seed purity but may also carry pests and diseases, adversely affecting subsequent planting. Therefore, effective seed sorting and impurity removal before sowing is fundamental to achieving efficient and high-quality agricultural production.

[0003] Traditional seed sorting methods mainly rely on manual operation, with the most common method being the use of hand-cranked sieves. While this method is simple and direct, hand-cranked sieves are inefficient and require a large amount of manpower, especially when processing large quantities of seeds, resulting in high labor intensity.

[0004] To overcome the shortcomings of manual sieving, mechanized sorting technologies have been gradually developed in recent years. Among them, seed sorting machines based on the principle of wind-driven sorting have become a popular solution. These devices are typically designed with a hopper and a built-in fan. During operation, seeds fall from the hopper into the sorting area, and the airflow generated by the fan blows the seeds. Due to the weight difference between seeds and impurities (especially light substances such as dust), lighter impurities are easily carried away by the airflow, while heavier seeds continue to fall, thus achieving a certain degree of separation. Although this method improves sorting efficiency and reduces reliance on manual labor to some extent, its application still faces challenges. In particular, a single sorting operation often fails to achieve the ideal purity, requiring multiple cycles, which increases energy consumption and time costs. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a rocker arm type seed sorting device. By using the reciprocating swing of the rocker arm, automatic circulating air sorting of seeds is realized, which solves the problem of repeated manual loading in existing air sorting machines, improves the efficiency of seed air sorting, and reduces the labor intensity of operators.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A rocker arm type seed sorting device includes a base, a rocker arm movably connected to the upper part of the base, several telescopic devices pivotally connected to one side of the base, and the other end of the telescopic devices pivotally connected to the lower part of the rocker arm; two supports are symmetrically arranged on the upper part of the rocker arm, and sorting cylinders are provided on the supports with a gap between the two sorting cylinders, one end of the sorting cylinder is open and the other end is closed, and seeds are filled in the sorting cylinders; a support frame is fixedly connected to the upper part of the rocker arm, and several fans are provided on the support frame, with both sides of the fans mounted on fixed seats via pins, and the fixed seats are fixedly mounted on the support frame.

[0008] Furthermore, the telescopic device is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0009] Furthermore, a hopper is provided in the middle of the rocker arm, and a collection bag is connected to the lower part of the hopper for collecting impurities and accidentally dropped seeds. Baffles are provided on both sides of the rocker arm.

[0010] Furthermore, the lower part of the hopper is equipped with a U-shaped clamp for quick assembly and disassembly of the collection bag.

[0011] Furthermore, the open end of the sorting cylinder is provided with a constricted section, and one side of the constricted section is provided with a flared section.

[0012] Furthermore, the sorting cylinder is provided with several evenly distributed perforations, the support frame is provided with a motor, the output shaft of the motor is connected to a drive gear, the support frame is rotatably connected with a rotating shaft, the rotating shaft is connected to a driven gear that meshes with the drive gear, the rotating shaft is also provided with drive pulleys on both sides, the sorting cylinder is provided with a driven pulley, and the drive pulley and the driven pulley are connected by a transmission belt.

[0013] Furthermore, the rotating shaft is provided with several key bars, and end plates are connected to both ends of the rotating shaft. A bushing is provided on one side of the drive pulley. Both the drive pulley and the bushing are provided with keyways that are slidably connected to the key bars. A fastening screw is threaded onto the bushing for adjusting the position of the drive pulley. Guide rods are provided on both sides of the rocker arm, and the guide rods are slidably connected to the support. A double-ended screw is also provided on the rocker arm, and the double-ended screw is threadedly connected to the support.

[0014] Furthermore, a fixing plate is fixedly connected to one end of the pin shaft, and an adjusting bolt is threadedly connected to the fixing plate; a corrugated groove is provided on one side of the fixing plate, and one end of the adjusting bolt is engaged in the groove.

[0015] The beneficial effects of this utility model are:

[0016] 1) This utility model utilizes a telescopic device to drive a rocker arm to swing back and forth on the base, causing the seeds to be poured back and forth between two sorting cylinders. A fan blows out the impurities mixed in the seeds, realizing automatic circulating air sorting of seeds and ensuring the effectiveness of seed air sorting.

[0017] 2) A hopper is installed in the middle of the rocker arm, and a collection bag is connected to the bottom of the hopper by a U-shaped clamp to facilitate the collection of impurities and accidentally dropped seeds.

[0018] 3) A constricted section and an expanded section are set at the opening of the sorting cylinder, which not only helps to increase the arc of the seed falling in the initial stage of the rocker arm swing, but also helps to receive the seeds poured out from another sorting cylinder.

[0019] 4) A sieve hole is set on the sorting cylinder, and the sorting cylinder is driven by a motor to rotate, so that the seeds roll inside the sorting cylinder, removing some small particle impurities and improving the efficiency of seed sorting.

[0020] 5) The position of the support on the rocker arm is adjustable, which makes it easy to adjust the position of the sorting cylinder according to seeds of different particle sizes, thereby ensuring the accuracy of the sorting cylinder at the lower position receiving the sorting cylinder at the higher position.

[0021] 6) The fan angle is adjustable, ensuring the seed sorting effect; in addition, by setting a corrugated slot on one side of the fixed plate, the stability of the fan angle after adjustment is ensured. Attached Figure Description

[0022] Appendix Figure 1 This is a schematic diagram of the structure of a rocker arm type seed sorting device according to this utility model.

[0023] Appendix Figure 2 This is a schematic diagram of the base.

[0024] Appendix Figure 3 This is a schematic diagram of a hopper.

[0025] Appendix Figure 4 This is a schematic diagram of the sorting cylinder assembly.

[0026] Appendix Figure 5 This is a schematic diagram of the assembly of the rotating shaft and the support frame.

[0027] Appendix Figure 6 This is a schematic diagram of a wind turbine.

[0028] Appendix Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0029] Appendix Figure 8 This is a schematic diagram of the rotating shaft structure.

[0030] In the diagram, 1. Base; 11. Telescopic device; 12. Rocker arm; 13. Folding hopper; 14. U-shaped clamp; 15. Guide rod; 16. Double-ended screw; 17. Baffle; 2. Sorting cylinder; 21. Folding hole; 22. Neck section; 23. Flared section; 24. Driven pulley; 25. Support; 3. Support frame; 31. Motor; 32. Rotating shaft; 33. End plate; 34. Drive pulley; 35. Bushing; 36. Fastening screw; 37. Driven gear; 4. Fan; 41. Fixed seat; 42. Slot; 43. Pin; 44. Fixed plate; 45. Adjusting bolt. Detailed Implementation

[0031] The following will be combined with the appendix Figures 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] like Figure 1 , Figure 2 As shown, a rocker arm type seed sorting device includes a base 1, with a rocker arm 12 movably connected to the upper part of the base 1. Several telescopic devices 11 are pivotally connected to one side of the base 1, and the other end of each telescopic device 11 is pivotally connected to the lower part of the rocker arm 12. Two supports 25 are symmetrically arranged on the upper part of the rocker arm 12, and sorting cylinders 2 are mounted on the supports 25 with a gap between them. One end of each sorting cylinder 2 is open, and the other end is closed, with seeds filled inside. A support frame 3 is fixedly connected to the upper part of the rocker arm 12. Figure 5 As shown, the support frame 3 is provided with a plurality of fans 4, and the two sides of the fans 4 are mounted on the fixed seats 41 by pins 43. The fixed seats 41 are fixedly mounted on the support frame 3.

[0034] During seed sorting, seeds are placed in one of the sorting cylinders 2. The telescopic device 11 reciprocates, causing the rocker arm 12 to swing left and right on the base 1, so that the seeds fall from one sorting cylinder 2 into another sorting cylinder 2. When the seeds fall into the gap between the two sorting cylinders 2, the fan 4 blows out the impurities mixed in the seeds, realizing one-time seed air sorting. The reciprocating swing of the rocker arm 12 realizes automatic circulating air sorting of seeds, ensuring the effect of seed air sorting.

[0035] The telescopic device 11 is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. In this embodiment, for example... Figure 1 , Figure 2 As shown, the telescopic device 11 is a hydraulic cylinder.

[0036] like Figure 2 As shown, a hopper 13 is provided in the middle of the rocker arm 12, and a collection bag (not shown in the figure) is connected to the lower part of the hopper 13 for collecting impurities and seeds that fall accidentally. Baffles 17 are provided on both sides of the rocker arm 12 to prevent seeds that fall from the sorting cylinder 2 from falling off the rocker arm 12 again during the rocking process.

[0037] like Figure 3 As shown, the lower part of the hopper 13 is provided with a U-shaped clamp 14 for quick assembly and disassembly of the collection bag.

[0038] like Figure 4 As shown, the open end of the sorting cylinder 2 is provided with a constricted section 22, which helps to increase the arc of the seeds falling during the initial swinging stage of the rocker arm 12 and reduce the number of seeds spilled on the rocker arm 12; the constricted section 22 is provided with a widening section 23 on one side, so that the opening of the sorting cylinder 2 is in the shape of a trumpet. The constricted section 22 and the widening section 23 cooperate with each other to ensure that the sorting cylinder 2 can better receive the seeds poured out from the other sorting cylinder 2.

[0039] like Figure 4 As shown, the sorting cylinder 2 is provided with a plurality of evenly distributed perforations 21, such as Figure 5 As shown, a motor 31 is mounted on the support frame 3, and a drive gear (not shown in the figure) is connected to the output shaft of the motor 31. A rotating shaft 32 is rotatably connected to the support frame 3. Figure 8 As shown, a driven gear 37 that meshes with the driving gear is connected to the rotating shaft 32. A driving pulley 34 is also provided on both sides of the rotating shaft 32. A driven pulley 24 is provided on the sorting cylinder 2. The driving pulley 34 and the driven pulley 24 are connected by a transmission belt. When the motor 31 rotates, it drives the rotating shaft 32 to rotate through gear transmission. The rotating shaft 32 drives the sorting cylinder 2 to rotate through belt transmission, so that the seeds tumble in the sorting cylinder 2, screen out some small particle impurities, and improve the efficiency of seed sorting.

[0040] like Figure 8As shown, the rotating shaft 32 is provided with several key bars, and end plates 33 are connected to both ends of the rotating shaft 32. A bushing 35 is provided on one side of the drive pulley 34. Both the drive pulley 34 and the bushing 35 are provided with keyways that slide with the key bars. A fastening screw 36 is threaded onto the bushing 35 for adjusting the position of the drive pulley 34. Figure 2 As shown, guide rods 15 are provided on both sides of the rocker arm 12, and the guide rods 15 are slidably connected to the support 25. The rocker arm 12 is also provided with a double-ended screw 16, which is threadedly connected to the support 25. Rotating the double-ended screw 16 realizes the adjustment of the distance between the two supports 25, thereby realizing the adjustment of the distance between the two sorting cylinders 2. After the position of the sorting cylinder 2 is adjusted, the drive pulley 34 makes adaptive adjustments on the rotating shaft 32 to adapt to the sorting of seeds of different particle sizes.

[0041] like Figure 6 , Figure 7 As shown, a fixing plate 44 is fixedly connected to one end of the pin 43, and an adjusting bolt 45 is threaded onto the fixing plate 44. By rotating the pin 43 and using the adjusting bolt 45 to tighten the fixing plate 44, the air outlet angle of the fan 4 can be adjusted. A corrugated groove 42 is provided on one side of the fixing plate 44, and one end of the adjusting bolt 45 is locked in the groove 42 to ensure the stability of the fan 4 after the angle is adjusted.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A rocker arm type seed sorting device, comprising a base, characterized in that, A rocker arm is movably connected to the upper part of the base. Several telescopic devices are pivotally connected to one side of the base, and the other end of the telescopic devices is pivotally connected to the lower part of the rocker arm. Two supports are symmetrically arranged on the upper part of the rocker arm. A sorting cylinder is provided on the support, and a gap is left between the two sorting cylinders. One end of the sorting cylinder is open and the other end is closed. Seeds are filled into the sorting cylinder. A support frame is fixedly connected to the upper part of the rocker arm. Several fans are provided on the support frame. The two sides of the fans are mounted on fixed seats through pins. The fixed seats are fixedly mounted on the support frame.

2. The rocker arm type seed sorting device according to claim 1, characterized in that, The telescopic device is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

3. The rocker arm type seed sorting device according to claim 1, characterized in that, The rocker arm is equipped with a hopper in the middle, and a collection bag is connected to the lower part of the hopper for collecting impurities and seeds that have fallen accidentally. Baffles are provided on both sides of the rocker arm.

4. The rocker arm type seed sorting device according to claim 3, characterized in that, The lower part of the hopper is equipped with a U-shaped clamp for quick assembly and disassembly of the collection bag.

5. The rocker arm type seed sorting device according to claim 1, characterized in that, The open end of the sorting cylinder is provided with a constricted section, and one side of the constricted section is provided with a flared section.

6. The rocker arm type seed sorting device according to claim 1, characterized in that, The sorting cylinder is provided with several evenly distributed perforations. A motor is provided on the support frame. A drive gear is connected to the output shaft of the motor. A rotating shaft is rotatably connected to the support frame. A driven gear that meshes with the drive gear is connected to the rotating shaft. Drive pulleys are also provided on both sides of the rotating shaft. A driven pulley is provided on the sorting cylinder. The drive pulley and the driven pulley are connected by a transmission belt.

7. The rocker arm type seed sorting device according to claim 6, characterized in that, The rotating shaft is provided with several key bars, and end plates are connected to both ends of the rotating shaft. A bushing is provided on one side of the drive pulley. Both the drive pulley and the bushing are provided with keyways that slide with the key bars. A fastening screw is threaded onto the bushing for adjusting the position of the drive pulley. Guide rods are provided on both sides of the rocker arm, and the guide rods are slidably connected to the support. A double-ended screw is also provided on the rocker arm, and the double-ended screw is threadedly connected to the support.

8. The rocker arm type seed sorting device according to claim 1, characterized in that, One end of the pin is fixedly connected to a fixing plate, and an adjusting bolt is threaded onto the fixing plate; a corrugated groove is provided on one side of the fixing plate, and one end of the adjusting bolt is engaged in the groove.

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