Seed management system applied to seeding device

Abstract

The invention discloses a seed management system applied to a seeding device, which is provided with a seed storage part and a seed supplementing mechanism for supplementing seeds to the seed storage part, and further comprises a control system, the seed storage part is provided with a U-shaped side frame with an open rear side and a bottom unit capable of running backwards in one direction; the reseeding mechanism is located above the seed storage part, and a pulling-back mechanism is arranged between the reseeding mechanism and the seed storage part and can pull seeds in the seed storage part forwards; and the reseeding mechanism reseeds the front end of the seed storage part. According to the structure of the seed management system, it can be maintained that a proper amount of seeds exist in the seed storage part, the back-shifting mechanism can shift back redundant seeds unidirectionally conveyed by the bottom unit and seeds returned by the seed discharging mechanism, and it is guaranteed that the seeds in the seed storage part are in a uniform tiled state; a good foundation can be provided for large-range seed filling so as to facilitate seed metering of the seeding device, and the reseeding mechanism can be used for reseeding in time so that seeds in the seed storage part can be always kept at a proper amount.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a seed management system applied to a sowing device. Background Art

[0002] As a key component of modern agricultural machinery, the core function of the sowing device is to achieve accurate and efficient sowing of seeds. For the synchronous seeding and sowing operations in rows within a wide range, very high requirements are placed on the uniformity and thickness of the seeds in the seed storage unit. Traditional seed storage boxes mostly adopt a fixed structure to achieve seed supply through a simple structure, but in actual operations, problems such as unstable seed layer thickness control, insufficient reseeding uniformity, and low excess seed recovery efficiency are more prominent. The seeds in the seed storage mechanism are prone to local accumulation or too thin phenomena. Especially in high-speed operations or when there are large differences in seed fluidity, the seed filling rate of the seed taking mechanism fluctuates significantly, resulting in missed or reseeding.

[0003] In the prior art, the applicant's prior application CN111480427A provides a uniform reseeding mechanism and method for a sowing device. In this patent, by adopting a combined structure of a bidirectionally slidable feed trough and a rotary seeding device at the bottom, the translational movement of the feed system and the rotational movement of the seeding device are coordinated when replenishing the seed source. This design allows the seeds to be delivered one by one along the directional guide channel. Although this seed management method can increase the uniformity of reseeding to a certain extent, the seeds added to the seed box are in a strip-like structure, which has the problem of local accumulation and cannot ensure the uniformity of the seed layer. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a seed management system for a sowing device that can maintain an appropriate seed layer thickness so that a seed taking mechanism can take seeds within a wider range.

[0005] Technical solution: To achieve the above-mentioned purpose, the seed management system applied to the sowing device of the present invention comprises a seed storage part and a reseeding mechanism for replenishing seeds to the seed storage part, and also comprises a control system;

[0006] The seed storage part has a U-shaped side frame with an open rear side and a bottom unit capable of unidirectional backward movement;

[0007] The reseeding mechanism is located above the seed storage part, and a return mechanism is provided between the two, and the return mechanism can send the seeds in the seed storage part forward;

[0008] The reseeding mechanism reseedes the seeds toward the front end of the seed storage portion.

[0009] During operation, the bottom unit rotates to carry the seeds in the seed storage part backward, the return mechanism scrapes the seeds forward, and the excess seeds left over by the seeding device (i.e., the seeds that have not been successfully filled with seeds and thus have not been discharged) return to the rear side of the seed storage part under the action of the seed cleaning mechanism. The return mechanism can also scrape these returned seeds forward. In this way, it can be ensured that there is always a flat seed layer in the seed storage part. The reseeding mechanism can reseed the seed storage part in a timely manner to ensure that there is always an appropriate amount of seeds in the seed storage part.

[0010] Furthermore, the reseeding mechanism includes a seed box, a distributor, a feeding channel, and a vibrator. The distributor is placed below the seed box and is used to discharge the seeds in the seed box to the head end of the feeding channel. The vibrator is placed below the feeding channel and is used to vibrate the feeding channel. During operation, the vibrator causes the feeding channel to vibrate at a high frequency. The seeds in the feeding channel are spread out flat under the vibration and finally fall from the end of the feeding channel, enabling uniform reseeding.

[0011] Furthermore, the return mechanism includes a circulating unit and a plurality of scraping plates mounted on the circulating unit. The circulating unit is a conveyor belt or a conveyor chain. The lower half of the scraping plate is a straight section parallel to the bottom unit, and the running directions of the straight section and the bottom unit are opposite.

[0012] Furthermore, the scraping plate can rotate relative to the circulating unit, so that the scraping plate located on the lower half of the circulating unit is in an unfolded state, while the scraping plate located on the upper half of the circulating unit is in a folded state.

[0013] Furthermore, in the first solution, a torque sensor for monitoring the driving torque is installed on the axle of the driving wheel that drives the circulating unit, and the torque sensor is connected to the control system.

[0014] Specifically, when the effective torque calculated based on the torque data collected by the torque sensor (the torque data obtained after filtering and data processing based on the collected data when the seed layer thickness is stable) is within the preset threshold range, the reseeding mechanism is turned off or maintained in the off state. When the effective torque is lower than the lowest value of the preset threshold, it indicates that the seed layer in the seed storage part is too thin and needs to be reseeded. Therefore, the reseeding mechanism is turned on to reseed the seed storage part.

[0015] Furthermore, in the second solution, a seed layer thickness monitoring sensor is installed in the seed storage part, and the seed layer thickness monitoring sensor is connected to the controller.

[0016] Beneficial effects: The seed management system applied to the seeding device of the present invention has the following beneficial effects:

[0017] (1) The structure of the seed management system can maintain an appropriate amount of seeds in the seed storage part, and the return mechanism can return the excess seeds unidirectionally conveyed by the bottom unit and the seeds returned by the seed metering mechanism, ensuring that the seeds in the seed storage part are in a uniformly spread state, providing a good basis for large-scale seed filling for the seed metering of the sowing device. The reseeding mechanism can reseed in a timely manner to keep the seeds in the seed storage part at an appropriate level.

[0018] (2) By providing a feeding channel and a vibrator for the reseeding mechanism, uniform feeding can be carried out for the seed storage part, and the influence of the reseeding operation on the uniformity of the seeds in the left-right direction within the seed storage part is relatively small.

[0019] (3) By making the dialing plate unfold only at specific positions, the movement space occupied by the dialing plate on the upper half side of the circulation unit can be very small, enabling the installation position of the return mechanism to be lowered and improving the compactness of the structure.

[0020] (4) The control system can predict the thickness of the seeds in the seed storage part by monitoring the driving torque of the torque sensor, or directly monitor the thickness of the seed layer in the seed storage part through the seed layer thickness monitoring sensor. Based on this, the reseeding mechanism is controlled to perform intelligent reseeding, enabling the thickness of the seed layer in the seed storage part to be appropriate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a sectional view structure diagram of the seed management system;

[0022] Figure 2 is a three-dimensional structure diagram of the seed management system;

[0023] Figure 3 is a structure diagram of the return mechanism in an embodiment;

[0024] Figure 4 is an application diagram of the seed management system.

[0025] In the figure: 1 - side frame; 2 - bottom unit; 3 - circulation unit; 4 - dialing plate; 5 - seed box; 6 - distributor; 7 - feeding channel; 8 - vibrator; A - seed storage part; B - reseeding mechanism; C - return mechanism; D - drive mechanism; E - belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As Figure 1 shown in Figure 2 a seed management system applied to a sowing device, which has a seed storage part A and a reseeding mechanism B for supplementing seeds to the seed storage part A, and also includes a control system;

[0028] The seed storage part A has a U-shaped side frame 1 with an open rear side and a bottom unit 2 that can run unidirectionally backward;

[0029] The reseeding mechanism B is located above the seed storage part A, and a return mechanism C is arranged between the two. The return mechanism C can send the seeds in the seed storage part A forward;

[0030] The reseeding mechanism B reseeds the front end of the seed storage part A.

[0031] During operation, the bottom unit 2 operates to carry the seeds in the seed storage part A backward. The return mechanism C scrapes the seeds forward. And the excess seeds left by the seeding device (that is, the seeds that have not been successfully filled and thus not discharged) return to the rear side of the seed storage part A under the action of the seed cleaning mechanism. The return mechanism C can also send these returned seeds forward. In this way, it can be ensured that there is always a flat seed layer in the seed storage part A. The reseeding mechanism B can reseed the seed storage part A in a timely manner to ensure that there is always an appropriate amount of seeds in the seed storage part A.

[0032] Adopting the above structure, it can maintain an appropriate amount of seeds in the seed storage part A. And the return mechanism C can return the excess seeds unidirectionally conveyed by the bottom unit 2 and the seeds returned by the seed discharging mechanism, ensuring that the seeds in the seed storage part A are in a uniformly flat state, providing a good basis for large-scale seed filling for the seeding device to discharge seeds. The reseeding mechanism B can reseed in a timely manner so that the seeds in the seed storage part A always maintain an appropriate amount.

[0033] Preferably, the reseeding mechanism B includes a seed box 5, a distributor 6, a feeding channel 7, and a vibrator 8; the distributor 6 is placed under the seed box 5 for discharging the seeds in the seed box 5 to the head end of the feeding channel 7, and the vibrator 8 is placed under the feeding channel 7 for vibrating the feeding channel 7. During operation, the vibrator 8 makes the feeding channel 7 generate high-frequency vibration. The seeds in the feeding channel 7 are spread out under the vibration and finally fall from the end of the feeding channel 7, realizing uniform reseeding. By providing the feeding channel 7 and the vibrator 8 for the reseeding mechanism B, uniform feeding can be carried out for the seed storage part A, and the influence of the reseeding operation on the uniformity of the seeds in the left-right direction in the seed storage part A is relatively small.

[0034] Preferably, the return mechanism C includes a circulating unit 3 and a plurality of sending plates 4 mounted on the circulating unit 3; the circulating unit 3 is a conveyor belt or a conveyor chain; the lower half side of the sending plate 4 is a straight section parallel to the bottom unit 2, and the running directions of the straight section and the bottom unit 2 are opposite.

[0035] Preferably, as Figure 3As shown, the feeding plate 4 can rotate relative to the circulating unit 3, so that the feeding plate 4 located on the lower half side of the circulating unit 3 is in an unfolded state. The circulating unit 3 is provided with stoppers corresponding to each feeding plate 4, so that when the feeding plate 4 acts on the seeds in the seed storage part A in the unfolded state, it can be kept in a state perpendicular to the circulating unit 3; the feeding plate 4 located on the upper half side of the circulating unit 3 is in a folded state. In this way, by making the feeding plate 4 unfold only at specific positions, the moving space occupied by the feeding plate 4 on the upper half side of the circulating unit 3 can be very small, the installation position of the return feeding mechanism C can be lowered, and the compactness of the structure can be improved.

[0036] In the first embodiment, a torque sensor for monitoring the driving torque is installed on the axle of the driving wheel that drives the circulating unit 3, and the torque sensor is connected to the control system.

[0037] By monitoring the driving torque of the torque sensor, the control system can predict the thickness of the seeds in the seed storage part A and control the re-seeding mechanism B to perform intelligent re-seeding based on this, so that the thickness of the seed layer in the seed storage part A is appropriate. Specifically, when the effective torque calculated based on the torque data collected by the torque sensor (the torque data obtained after filtering and data processing based on the collected data when the seed layer thickness is stable) is within the preset threshold range, the re-seeding mechanism B is turned off or maintained in the off state; when the effective torque is lower than the lowest value of the preset threshold, it means that the seed layer in the seed storage part A is too thin and needs to be re-seeded. Therefore, the re-seeding mechanism B is turned on to re-seed the seed storage part A.

[0038] In the second embodiment, a seed layer thickness monitoring sensor is installed in the seed storage part A, and the seed layer thickness monitoring sensor is connected to the controller. The thickness of the seed layer in the seed storage part A can be directly monitored through the seed layer thickness monitoring sensor to determine whether re-seeding is needed.

[0039] In this embodiment, as Figure 4As shown, the bottom unit 2 is a part of the circulating belt E. The belt E has seed accommodating holes arranged in a square array. The belt has a flat part at the bottom of the side frame 1 and also has an inclined part connected to the flat part. The bottom unit 2 is a part of the belt located at the flat part. In actual use, when the belt runs, the seed accommodating holes on it circulate into the seed storage part A to pick up seeds, and the seeds in the seed storage part A are filled into the seed accommodating holes. Due to the inclined layout of the belt part of the inclined part, the excess seeds on it roll down to the lower part and return to the rear side of the seed storage part A, and then are dialed back by the dialing mechanism C. Preferably, the seed storage part A and the dialing mechanism C can together make a translational rotation movement along a circular track under the action of the driving mechanism D, and the position of the reseeding mechanism B relative to the ground remains unchanged. In this way, the rotation of the seed storage part A can promote the seeds to enter the seed accommodating holes, make the seed layer in the seed storage part A evenly paved, and promote the rolling back of the seeds on the inclined part.

[0040] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A seed management system applied to a sowing device, which has a seed storage part (A) and a seed replenishing mechanism (B) for replenishing seeds to the seed storage part (A), and further includes a control system; characterized in that: The seed storage part (A) has a U-shaped side frame (1) with an open rear side and a bottom unit (2) that can run unidirectionally backward; The seed replenishing mechanism (B) is located above the seed storage part (A), and a return mechanism (C) is provided between the two. The return mechanism (C) can forwardly send the seeds in the seed storage part (A); The seed replenishing mechanism (B) replenishes seeds to the front end of the seed storage part (A).

2. The seed management system applied to the seeding device according to claim 1, wherein, The seed replenishing mechanism (B) includes a seed box (5), a distributor (6), a feeding channel (7), and a vibrator (8); the distributor (6) is placed below the seed box (5) for discharging the seeds in the seed box (5) to the head end of the feeding channel (7), and the vibrator (8) is placed below the feeding channel (7) for vibrating the feeding channel (7).

3. The seed management system applied to the seeding device according to claim 1, characterized in that The return mechanism (C) includes a circulating unit (3) and a plurality of sending plates (4) installed on the circulating unit (3); the circulating unit (3) is a conveyor belt or a conveyor chain; the lower half side of the sending plate (4) is a straight section parallel to the bottom unit (2), and the running directions of the straight section and the bottom unit (2) are opposite.

4. The seed management system applied to the seeding device according to claim 3, wherein, The sending plate (4) can rotate relative to the circulating unit (3) so that the sending plate (4) located on the lower half side of the circulating unit (3) is in an unfolded state, while the sending plate (4) located on the upper half side of the circulating unit (3) is in a folded state.

5. The seed management system applied to the seeding device according to claim 1, wherein A torque sensor for monitoring the driving torque is installed on the axle of the driving wheel that drives the circulating unit (3), and the torque sensor is connected to the control system.

6. The seed management system applied to the seeding device according to claim 1, wherein A seed layer thickness monitoring sensor is installed in the seed storage part (A), and the seed layer thickness monitoring sensor is connected to the controller.

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