Precise sowing mechanism for double peanuts

Abstract

The invention belongs to the technical field of seeding mechanisms, and discloses a double-grain peanut precision seeding mechanism, which comprises a grain separating disc for executing rotation action and a grain separating pipe for conveying seeds, the pipe wall of the grain separating pipe is provided with a notch for enabling the grain separating disc to enter an inner cavity of the grain separating disc, and the grain separating disc is provided with a plurality of vacant parts. When the vacant part of the grain separating disc is completely overlapped with the inner cavity of the grain separating pipe, the grain separating pipe is conducted, and when the vacant part of the grain separating disc is not located in the grain separating pipe or is not completely overlapped with the inner cavity of the grain separating pipe, the grain separating pipe is cut off; an air source is communicated with the interior of the grain separating pipe; a plurality of flexible blocking pieces are arranged at the outlet end of the particle separating pipe. According to the invention, the distribution of the sowing quantity of peanut seeds can be stably and accurately realized, and the sowing requirement of double-grain peanuts is met; peanut seeds can be smoothly and quickly discharged downwards, and the peanut seeds can quickly enter the bottom of a pit and can follow the reclamation speed of a seeding machine. Peanut seeds in the seed separating pipe are sorted in a single row, and blocking is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seeding mechanism, and particularly relates to a double-grain peanut precision seeding mechanism. BACKGROUND

[0002] Peanut seeds are usually planted in two per hole during seeding, which can significantly improve the seedling rate and effectively utilize land resources. In areas with low soil fertility or insufficient water supply, this method can significantly improve the yield.

[0003] Precision seeding is a modern agricultural seeding technology, which refers to a high-efficiency and uniform seeding method by precisely controlling the spacing, depth and position of seeds. The core goal is to reduce seed waste, optimize plant growth space, improve seedling rate and yield, and reduce production cost.

[0004] In agricultural activities, the current precision seeding mechanism has the following deficiencies. Mainly, it cannot stably achieve the on-demand distribution of the number of peanut seeds and the smooth and rapid discharge of peanut seeds. Secondly, it cannot solve the problem of seed blockage in the conveying pipeline. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a double-grain peanut precision seeding mechanism.

[0006] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:

[0007] A double-grain peanut precision seeding mechanism, comprising a particle separation disc performing a rotating action and a particle separation pipe conveying seeds, the pipe wall of the particle separation pipe is provided with a notch for the particle separation disc to enter the inner cavity thereof, the particle separation disc is provided with a plurality of vacant sites, when the vacant sites of the particle separation disc completely coincide with the inner cavity of the particle separation pipe, the particle separation pipe is conducted, and when the vacant sites of the particle separation disc are not in the interior of the particle separation pipe or do not completely overlap, the particle separation pipe is cut off.

[0008] The inside of the particle separation pipe is connected to an air source.

[0009] The outlet end of the particle separation pipe is provided with a plurality of flexible blocking pieces.

[0010] In the present application, the particle separation pipe sorts the peanut seeds therein according to a single column, and the particle separation disc limits the number of peanut seeds passing through;

[0011] When the vacant sites of the particle separation disc are not in the interior of the particle separation pipe, the channel of the particle separation pipe is completely isolated at this time, and when the vacant sites of the particle separation disc do not completely overlap with the inner cavity of the particle separation pipe, the gap formed by the two is not enough for the peanut seeds to pass through, and the particle separation pipe is also in a cut-off state.

[0012] Only when the vacancy of the grading disc is completely coincided with the inner cavity of the grading tube, at this time the size of the channel is the size of the inner cavity cross-sectional area of the grading tube, the peanut seeds can pass through smoothly, adjusting the rotating speed of the grading disc can make the vacancy pass through the inner cavity of the grading tube and only drop one peanut seed, if the vacancy does a stagnation action when passing through the grading tube, more peanut seeds will be allowed to drop, but the latter way is difficult to accurately control the number of peanut seeds to be dropped, therefore, the optimal number control method is that the vacancy is allowed to drop only one peanut seed when passing through the grading tube, by controlling the rotating speed and the number of rotations of the grading disc, the required number of peanut seeds can be stably and accurately obtained in a set time, when the sowing demand of double peanut is required, the vacancy is allowed to drop only one peanut seed when passing through the grading tube, and two seeds are sown in each pit hole;

[0013] The peanut seeds passing through the grading disc are intercepted by the flexible blocking piece at the outlet end of the grading tube, the flexible blocking piece itself has a certain resistance to deformation, and the elasticity for maintaining the shape of the flexible blocking piece can effectively support the peanut seeds which are relatively light in weight;

[0014] When it is required to release the peanut seeds quickly and smoothly, the gas with pressure is injected into the grading tube, the high-speed and high-pressure gas impacts the peanut seeds, and another part of the gas forces the flexible blocking piece to deform completely, so that the outlet channel at the end of the grading tube is opened, and the peanut seeds can be quickly and accurately injected into the bottom of the pit hole excavated by the seeding machine under the action of the gas, after the peanut seeds are ejected, the high-pressure gas disappears, and the flexible blocking piece restores the deformation to block the outlet end of the grading tube again.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The distribution of the sowing number of peanut seeds can be stably and accurately realized, and the sowing demand of double peanut can be met;

[0017] 2. The peanut seeds can be smoothly and quickly discharged, and the peanut seeds can quickly enter the bottom of the pit hole, so that the reclamation speed of the seeding machine can be followed;

[0018] 3. The peanut seeds in the grading tube are sorted in a single column, and the occurrence of blockage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application can be further illustrated by the non-limiting examples shown in the accompanying drawings;

[0020] Figure 1 The present application is a structural schematic diagram of an embodiment;

[0021] Figure 2 The present application is a local enlarged view of A in the embodiment in Figure 1 ;

[0022] Figure 3 A structure diagram of the gas accelerating tube in the embodiment of the present application; Figure 2

[0023] Figure 4 A structure diagram of the particle classifying disc in the embodiment of the present application;

[0024] Figure 5 A structure diagram of the particle classifying disc in the embodiment of the present application;

[0025] Figure 6 A structure diagram of the gas accelerating tube in the embodiment of the present application; Figure 2

[0026] Figure 7 A structure diagram of the vibration tube in the embodiment of the present application; Figure 2

[0027] A structure diagram of the vibration limiting tube in the embodiment of the present application; Figure 8 Figure 2

[0028] The main element mark is explained as follows:

[0029] 1, seed storage cabin;

[0030] 2, first bellows;

[0031] 3, vibration tube; 301, first locating ring;

[0032] 4, vibration limiting tube; 401, second locating ring;

[0033] 5, spring;

[0034] 6, second bellows;

[0035] 7, particle classifying tube; 701, first pipe; 702, second pipe; 703, third pipe; 704, notch; 705, air nozzle;

[0036] 8, blocking piece;

[0037] 9, motor;

[0038] 10, particle classifying disc; 101, vacant site;

[0039] 11, gas accelerating tube; 110, variable cross-section inner cavity;

[0040] 12, vibration generating source. DETAILED DESCRIPTION

[0041] ​​​​The technical solutions of the present application will be described in detail below with reference to specific embodiments and drawings. The embodiments described herein are specific embodiments of the present application, which are used to illustrate the concept of the present application; these descriptions are all explanatory and exemplary, and should not be understood as limiting the embodiments of the present application and the protection scope of the present application. In addition to the embodiments described herein, those skilled in the art can also adopt other technical solutions that are obvious based on the content disclosed in the claims and the description of the present application, which include technical solutions that make any obvious replacement and modification to the embodiments described herein.

[0042] Example 1

[0043] As shown in Figure 1 、 2 , 4, 5, the embodiment provides a double kernel peanut precision seeding mechanism, which comprises a kernel separation disc 10 performing a rotating action and a kernel separation pipe 7 conveying seeds, the pipe wall of the kernel separation pipe 7 is provided with a notch 704 for the kernel separation disc 10 to enter the inner cavity thereof, the kernel separation disc 10 is provided with a plurality of vacant positions 101, when the vacant positions 101 of the kernel separation disc 10 completely coincide with the inner cavity of the kernel separation pipe 7, the kernel separation pipe 7 is conducted, when the vacant positions 101 of the kernel separation disc 10 are not in the interior of the kernel separation pipe 7 or do not completely overlap, the kernel separation pipe 7 is cut off;

[0044] The interior of the kernel separation pipe 7 is connected with an air source;

[0045] The outlet end of the kernel separation pipe 7 is provided with a plurality of flexible blocking pieces 8.

[0046] In the embodiment, the kernel separation pipe 7 sorts the peanut seeds therein according to a single column, and the kernel separation disc 10 limits the number of peanuts passing through;

[0047] When the vacant positions 101 of the kernel separation disc 10 are not in the interior of the kernel separation pipe 7, the channel of the kernel separation pipe 7 is completely isolated at this time, when the vacant positions 101 of the kernel separation disc 10 do not completely overlap with the inner cavity of the kernel separation pipe 7, the gap formed by the two is not enough for the peanut seeds to pass through, and the kernel separation pipe 7 is also in a cut-off state;

[0048] Only when the vacancy 101 of the sorting disc 10 is completely coincided with the inner cavity of the sorting tube 7, at this time the size of the channel is the size of the inner cavity cross section of the sorting tube 7, the peanut seeds can pass through smoothly, by adjusting the rotating speed of the sorting disc 10, only one peanut seed can be dropped when the vacancy 101 passes through the inner cavity of the sorting tube 7, if the vacancy 101 does not move when passing through the sorting tube 7, more peanut seeds will be allowed to drop, but the latter way is difficult to accurately control the number of peanut seeds to be dropped, therefore, the optimal number control method is that only one peanut seed is allowed to drop when the vacancy 101 passes through the sorting tube 7, by controlling the rotating speed and the number of rotations of the sorting disc 10, the required number of peanut seeds can be stably and accurately obtained in a set time;

[0049] The peanut seeds passing through the sorting disc 10 are intercepted by the flexible blocking piece 8 at the outlet end of the sorting tube 7, the flexible blocking piece 8 itself has a certain resistance to deformation, and the elastic force for maintaining its shape can effectively support the peanut seeds with light weight;

[0050] When it is required to quickly and smoothly release the peanut seeds, the gas with pressure is injected into the sorting tube 7, the high-speed and high-pressure gas impacts the peanut seeds, and another part of the gas also forces the flexible blocking piece 8 to completely deform, so as to open the outlet channel at the end of the sorting tube 7, under the action of the gas, the peanut seeds can quickly and accurately enter the bottom of the hole dug by the seeding machine, after the peanut seeds are shot, the high-pressure gas disappears, and the flexible blocking piece 8 restores the deformation to block the outlet end of the sorting tube 7 again.

[0051] In some optional examples, there is only one vacancy 101 on the sorting disc 10, so that only one peanut seed is dropped when the sorting disc 10 rotates one circle, and the sorting disc 10 needs to rotate two circles when responding to the seeding demand of double peanut seeds.

[0052] In some optional examples, two vacancies 101 are arranged on the sorting disc 10, so that two peanut seeds can be dropped when the sorting disc 10 rotates one circle, which can reduce the number of rotations of the sorting disc 10, save energy and improve the seeding efficiency, and the sorting disc 10 only needs to rotate one circle when responding to the seeding demand of double peanut seeds.

[0053] In fact, the number of vacancies 101 on the sorting disc 10 is determined according to the actual seeding speed demand of the seeds.

[0054] Example 2

[0055] For example, Figure 4 , 5As shown in the figure, the embodiment provides a double-grain peanut precision seeding mechanism, which is different from the embodiment 1 in that the area of the single vacancy site 101 is larger than the inner cavity cross-sectional area of the grain separation tube 7.

[0056] In the embodiment, the area size relationship between the vacancy site 101 and the inner cavity cross-sectional area of the grain separation tube 7 is particularly limited, so that the vacancy site 101 and the inner cavity of the grain separation tube 7 coincide for a sufficient time for a peanut seed to fall. If the vacancy site 101 and the inner cavity cross-sectional area of the grain separation tube 7 are comparable in size, they will only coincide for an instant. In this short time, the peanut seed cannot pass through the grain separation disc 10 completely, which may cause the peanut seed to be squeezed and damaged. Therefore, only by setting the area of the single vacancy site 101 to be larger than the inner cavity cross-sectional area of the grain separation tube 7, a sufficient channel opening time can be reserved to facilitate the smooth passage of the peanut seed.

[0057] Example 3

[0058] As shown in the figure, Figure 3 , 6 the embodiment provides a double-grain peanut precision seeding mechanism, which is different from the embodiment 1 in that the grain separation tube 7 is provided with a first pipe 701, a second pipe 702 and a third pipe 703, and a gap 704 is located on the pipe wall of the first pipe 701.

[0059] The first pipe 701 and the third pipe 703 are parallel to each other and have different axes, and the second pipe 702 is inclinedly arranged, with the upper end connected to the first pipe 701 and the lower end connected to the third pipe 703. The third pipe 703 is the outlet end of the grain separation tube 7 away from the second pipe 702.

[0060] The pipe wall of the second pipe 702 is provided with a gas nozzle 705 connected to an external gas source. The gas nozzle 705 and the third pipe 703 have the same axis.

[0061] The gas nozzle 705 is connected to a gas acceleration tube 11, which is connected to the gas source. The inner cavity of the gas acceleration tube 11 is a variable cross-section inner cavity 110, which has the largest inner cavity cross-sectional area at the end away from the gas nozzle 705 and the smallest inner cavity cross-sectional area at the end close to the gas nozzle 705.

[0062] In this embodiment, the shape of the seed-distributing tube 7 is specifically defined, which includes a first pipe 701, a second pipe 702, and a third pipe 703. The first pipe 701 and the third pipe 703 have different axes and are parallel to each other to facilitate air source injection. If the nozzle 705 of the external air source is still set on the first pipe 701, then the injection direction of the air source cannot be parallel to the direction of the first pipe 701 because there is no vertical position to arrange the nozzle 705. Therefore, an additional pipe needs to be arranged for the arrangement of the nozzle 705. The nozzle 705 and the third pipe 703 have the same axis, which can ensure that the blown gas moves along the axis of the third pipe 703 without loss and improve the utilization rate of gas energy. The second pipe 702 is arranged at an angle to facilitate the falling peanut seeds to enter the third pipe 703.

[0063] The inner cavity of the gas acceleration tube 11 is a variable cross-section inner cavity 110, and the cross-sectional area of ​​the inner cavity is the smallest at the end near the gas nozzle 705. This is because the gas flow rate increases when the cross-sectional area of ​​the channel decreases, which can increase the impact force of the gas on the peanut seeds and the baffle plate 8, reduce the requirements for gas source pressure, and reduce equipment costs.

[0064] Example 4

[0065] This embodiment provides a precision seeding mechanism for two-kernel peanuts. The difference from Embodiment 1 is that a counter is installed on the wall of the seeding tube 7.

[0066] In this embodiment, the counter can determine the number of peanut seeds that have passed through and whether the seed-dividing disk 10 has performed the seed-dividing action well. If it is found that the number of peanut seeds does not match the preset number of falling seeds, the rotation speed of the seed-dividing disk 10 can be adjusted in time. Similarly, the counter can also provide feedback on the accuracy of the seeding quantity.

[0067] In some optional instances, the counter consists of a laser emitter and a laser receiver. When the peanut seed is located in the optical path between the laser emitter and the laser receiver, the light is blocked, and the light signal of the laser receiver changes from 1 to 0, thus counting once.

[0068] Example 5

[0069] like Figure 2 As shown, this embodiment provides a double-seed peanut precision planting mechanism, which differs from Embodiment 1 in that the seeding disc 10 is driven by a motor 9.

[0070] In this embodiment, the power source for driving the grain dividing disc 10 to perform rotation is specifically limited to the motor 9 because the energy of the motor 9 is easy to obtain and can be borrowed from the power supply of the seeder. In addition, the speed and rotation speed of the motor 9 are very easy to control, and its electronic control means are quite mature.

[0071] In some optional examples, the motor 9 is a stepper motor.

[0072] Example 6

[0073] As Figure 2 、 7 , 8, the embodiment provides a double kernel peanut precision seeding mechanism, which is different from the embodiment 1, comprising a spring 5, a vibration tube 3 and a vibration limiting tube 4, the vibration tube 3 is located in the inside of the vibration limiting tube 4, the outer wall of the vibration tube 3 is provided with a plurality of first placing rings 301, the inner wall of the vibration limiting tube 4 is provided with a plurality of second placing rings 401, one end of the spring 5 is fixed in the first placing ring 301, and the other end is fixed in the second placing ring 401.

[0074] The vibration tube 3 and the inlet end of the kernel separation tube 7 are flexibly connected.

[0075] In the embodiment, in order to make the peanut seeds in the kernel separation tube 7 be sorted in a single column and avoid the occurrence of blockage, the vibration tube 3 is specially installed at the inlet end of the kernel separation tube 7, the peanut seeds enter the vibration tube 3 from the seed storage cabin 1 on the seeding machine, the inner diameter of the vibration tube 3 should be matched with the size of the peanut seeds, in some special cases, some small size seeds will fall into the vibration tube 3 at the same time with the normal size seeds, when the two seeds are parallel, the size is greater than the inner cavity of the vibration tube 3, which will cause the channel to be blocked, at this time, the vibration tube 3 needs to be shaken to make the two parallel peanut seeds become one above the other, so as to remove the congestion state.

[0076] When the seeding machine is running, it will produce a certain vibration, originally this vibration is an unfavorable factor, which will make the connection relationship of the seeding machine itself invalid or loose, at this time, the vibration is used as a power source on the vibration tube 3, which can convert the defect into an advantage, further, in order to expand the vibration as much as possible, the vibration limiting tube 4 is sleeved on the outer circle of the vibration tube 3, the two are connected through the spring 5, the vibration limiting tube 4 is fixed on the frame of the seeding machine, when the vibration tube 3 is vibrated, the spring 5 is compressed, the kinetic energy is converted into elastic potential energy, the vibration energy is stored, and the spring 5 restores the deformation process to push the vibration tube 3 to shake, in the repeated conversion of capacity, the vibration tube 3 can be vibrated many times, and the vibration effect is expanded.

[0077] In some alternative examples, since the vibrating tube 3 needs to vibrate, the inlet ends of the vibrating tube 3 and the seed-separating tube 7 can only be flexibly connected. The flexible connection method can be a corrugated tube. Specifically, the inlet end of the vibrating tube 3 is connected to the first corrugated tube 2, and the outlet end of the vibrating tube 3 is connected to the second corrugated tube 6. The minimum inner diameter of the first corrugated tube 2 is less than twice the average diameter of the seeds. This size setting can prevent the channel size from being too large and causing peanut seeds to flood in at the same time, and can also prevent the channel size from being too small and making it difficult for peanut seeds to enter. It should be added that, in addition to the ability to deform and twist radially, the corrugated tube also has the ability to deform axially.

[0078] In some optional instances, the flexible connection is achieved by a rubber tube. Specifically, both the inlet and outlet ends of the vibrating tube 3 are connected to a flexible rubber tube with an inner diameter less than twice the average diameter of the seed.

[0079] Example 7

[0080] like Figure 2 As shown, this embodiment provides a precision seeding mechanism for two peanuts, which differs from Embodiment 6 in that it includes a vibration source 12 that strikes the vibrating tube 3.

[0081] In this embodiment, a vibration source 12 that actively generates vibration is added. This is to deal with situations where the vibration intensity of the seeder is insufficient or the seeder is not working. In this case, the active vibration of the vibration source 12 can force the peanut seeds inside the vibration tube 3 to break the congestion.

[0082] In some optional examples, the vibration source 12 is a vibration motor or an electric cylinder that can operate at high frequency. The arrangement and number of vibration sources 12 are determined according to actual needs.

[0083] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A precision seeding mechanism for two-kernel peanuts, characterized in that: The device includes a seed-dividing disc (10) that performs a rotating action and a seed-dividing tube (7) that transports seeds. The tube wall of the seed-dividing tube (7) is provided with a notch (704) for the seed-dividing disc (10) to enter its own inner cavity. The seed-dividing disc (10) is provided with a number of empty parts (101). When the empty parts (101) of the seed-dividing disc (10) completely overlap with the inner cavity of the seed-dividing tube (7), the seed-dividing tube (7) is open. When the empty parts (101) of the seed-dividing disc (10) are not inside the seed-dividing tube (7) or do not completely overlap, the seed-dividing tube (7) is closed. The inside of the particle distribution tube (7) is connected to an air source; The outlet end of the particle distribution tube (7) is provided with several flexible baffles (8).

2. The precision seeding mechanism for double-kernel peanuts according to claim 1, characterized in that: The area of ​​a single vacancy (101) is greater than the cross-sectional area of ​​the inner cavity of the particle divider (7).

3. The precision seeding mechanism for double-kernel peanuts according to claim 1, characterized in that: The granulation tube (7) is provided with a first pipe (701), a second pipe (702) and a third pipe (703), and the notch (704) is located on the pipe wall of the first pipe (701); The first pipe (701) and the third pipe (703) are parallel to each other and have different axes. The second pipe (702) is inclined, with its upper end connected to the first pipe (701) and its lower end connected to the third pipe (703). The end of the third pipe (703) away from the second pipe (702) is the outlet end of the particle distribution pipe (7). The second pipe (702) has a nozzle (705) for connecting to an external air source on its pipe wall. The nozzle (705) and the third pipe (703) have the same axis.

4. The precision seeding mechanism for double-kernel peanuts according to claim 3, characterized in that: The nozzle (705) is connected to the gas acceleration tube (11), which is connected to the gas source. The inner cavity of the gas acceleration tube (11) is a variable cross-section inner cavity (110). The cross-sectional area of ​​the variable cross-section inner cavity (110) is largest at the end away from the nozzle (705), and smallest at the end of the variable cross-section inner cavity (110) closer to the nozzle (705).

5. The precision seeding mechanism for double-kernel peanuts according to claim 1, characterized in that: A counter is installed on the wall of the particle distribution tube (7).

6. The precision seeding mechanism for double-kernel peanuts according to claim 1, characterized in that: The grain dividing disc (10) is driven by a motor (9).

7. The precision seeding mechanism for double-kernel peanuts according to claim 1, characterized in that: The device includes a spring (5), a vibrating tube (3), and a vibration limiting tube (4). The vibrating tube (3) is located inside the vibration limiting tube (4). The outer wall of the vibrating tube (3) is provided with a plurality of first mounting rings (301), and the inner wall of the vibration limiting tube (4) is provided with a plurality of second mounting rings (401). One end of the spring (5) is fixed inside the first mounting ring (301), and the other end is fixed inside the second mounting ring (401). The inlet ends of the vibrating tube (3) and the particle dividing tube (7) are flexibly connected.

8. The precision seeding mechanism for double-kernel peanuts according to claim 7, characterized in that: The inlet end of the vibrating tube (3) is connected to the first corrugated tube (2), and the outlet end of the vibrating tube (3) is connected to the second corrugated tube (6). The minimum inner diameter of the first corrugated tube (2) is less than twice the average diameter of the seed.

9. A precision seeding mechanism for double-kernel peanuts according to claim 7, characterized in that: The inlet and outlet ends of the vibrating tube (3) are both connected to flexible rubber tubes, the inner diameter of which is less than twice the average diameter of the seeds.

10. A precision seeding mechanism for double-kernel peanuts according to claim 8 or 9, characterized in that: This includes a vibration source (12) that strikes the vibrating tube (3).

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