CN113966659B

CN113966659B - Pneumatic type seed divider and seeder

Info

Publication number: CN113966659B
Application number: CN202111225963.8A
Authority: CN
Inventors: 王云力; 王义田; 姜姗; 张沙沙
Original assignee: Guangdong Haoyun Technology Co Ltd
Current assignee: Guangdong Haoyun Technology Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-11-29
Anticipated expiration: 2041-10-21
Also published as: CN113966659A

Abstract

The invention discloses a pneumatic type seed divider and a seeder, and relates to the technical field of agriculture. The pneumatic seed divider comprises a seed dividing box and a plurality of first conveying pipes. The seed separating box is internally provided with a seed separating space which is used for accommodating seeds. Many first conveyer pipes all are connected with the seed box, and are used for the seeding monomer intercommunication with the seeder. The first conveying pipe is provided with a first suction port which is arranged downwards and communicated with the seed separating space. The first conveying pipe is used for introducing air flow to generate negative pressure at the first suction opening, so that seeds in the seed separation space are sucked to the first conveying pipe through the first suction opening, and the seeds are conveyed to the sowing monomer under the action of the air flow. The pneumatic seed divider and the seeder both have the characteristics of being capable of uniformly dividing seeds into a plurality of parts and stably conveying the seeds.

Description

Pneumatic type seed divider and seeder

Technical Field

The invention relates to the technical field of agriculture, in particular to a pneumatic seed divider and a seeder.

Background

The seeder tends to develop towards large-scale, precise and accurate direction. At present, the seeder is used for seeding 10-20 rows at a time, the seed box is large in quantity, the seeding monomers are large in quantity, a conveying pipeline is long and easy to block, how to evenly distribute the seeds in the seed box into multiple parts, and the seeds are conveyed to the seeding monomers along the conveying pipeline in time is a problem to be solved urgently at present.

In view of the above, it is very important to develop and design a pneumatic seed divider and a seeding machine capable of solving the above technical problems.

Disclosure of Invention

The invention aims to provide a pneumatic seed divider and a seeder, which have the characteristics of uniformly dividing seeds into a plurality of parts and stably conveying the seeds.

The invention provides a technical scheme that:

in a first aspect, an embodiment of the present invention provides a pneumatic seed divider, which includes a seed dividing box and a plurality of first conveying pipes; a seed separating space is arranged in the seed separating box and used for accommodating seeds;

the first conveying pipes are connected with the seed separating box and are used for being communicated with a seeding single body of a seeding machine; a first suction port is formed in the first conveying pipe, is arranged downwards and is communicated with the seed separation space; the first conveying pipe is used for introducing air flow to generate negative pressure at the first suction port, so that seeds in the seed separation space are sucked to the first conveying pipe through the first suction port, and the seeds are conveyed to the sowing single bodies under the action of the air flow.

With reference to the first aspect, in another implementation manner of the first aspect, the plurality of first conveying pipes are arranged in parallel and at intervals, and the pneumatic seed divider further includes a plurality of second conveying pipes;

the second conveying pipes are connected to the seed sorting box, are parallel to the first conveying pipes and are arranged above the first conveying pipes at intervals; many second conveyer pipes are used for the seeding monomer intercommunication with the seeder, the second has been seted up on the second conveyer pipe and has been absorb the mouth, the second absorb the mouth with the branch kind space intercommunication, the second conveyer pipe is used for letting in the air current, with the second absorbs a mouthful department and produces the negative pressure, thereby absorbs the seed extremely the second conveyer pipe, with under the effect of air current will the seed is carried extremely the seeding monomer.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, a space is provided between projections of the first suction port and the second suction port on a horizontal plane.

With the combination of the first aspect and the implementation manner described above, in another implementation manner of the first aspect, the seed sorting box is further provided with a discharging slide way communicated with the seed sorting space, the discharging slide way is obliquely arranged, and the bottom end of the discharging slide way is provided with a discharging opening for allowing the seeds to slide down to the discharging opening along the discharging slide way, so as to enter the seed sorting space, and the height of the discharging opening is lower than that of the first suction opening.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, a first air inlet is further formed in the seed separating box, and the first air inlet is disposed on a side wall of the seed separating space and is used for horizontally introducing air into the seed separating space so as to raise the seeds falling from the feed opening through the air.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, a turning surface is disposed on a sidewall of the seed separating space, the turning surface is disposed in an inclined manner and corresponds to the feed opening to receive seeds falling from the feed opening and enable the seeds to fall along the turning surface, and the first airflow inlet is disposed below the turning surface to raise the seeds falling from the turning surface.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, a second airflow inlet is further formed in the seed separating box, and the second airflow inlet is disposed on a bottom wall of the seed separating space and is used for introducing airflow into the seed separating space so as to lift seeds in the seed separating space through the airflow.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the opening direction of the second airflow inlet is obliquely arranged and points to the feed opening.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the bottom wall of the seed separation space is arranged obliquely, and the pneumatic seed separator further includes a toggle mechanism;

the stirring mechanism is arranged in the seed separation space and is used for driving the seeds accumulated on the bottom wall of the seed separation space so as to enable the seeds to move to the second airflow inlet.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the pneumatic seed divider further includes a hopper and a discharging adjustment mechanism, the hopper is used for accommodating the seeds, the bottom of the hopper is communicated with the top opening of the discharging slideway, and the discharging adjustment mechanism is arranged at the bottom of the hopper and is used for adjusting the size of the top opening of the discharging slideway.

In a second aspect, the embodiment of the invention also provides a seeder, which comprises the pneumatic seed divider. The pneumatic seed separator comprises a seed separating box and a plurality of first conveying pipes; a seed separating space is arranged in the seed separating box and used for accommodating seeds; the first conveying pipes are connected with the seed separating box and are used for being communicated with a seeding single body of a seeding machine; a first suction port is formed in the first conveying pipe, is arranged downwards and is communicated with the seed separation space; the first conveying pipe is used for introducing air flow to generate negative pressure at the first suction port, so that the seeds in the seed separation space are sucked to the first conveying pipe through the first suction port, and the seeds are conveyed to the sowing single body under the action of the air flow.

Compared with the prior art, the pneumatic seed divider provided by the embodiment of the invention has the beneficial effects that:

the pneumatic seed separator comprises a seed separating box and a plurality of first conveying pipes, a seed separating space is arranged in the seed separating box and used for containing seeds, the first conveying pipes are connected to the seed separating box, the first conveying pipes are used for communicating with seeding units of the seeder, and air flow is introduced into the first conveying pipes so as to convey the seeds to the seeding units under the action of the air flow. And seted up first mouth of inhaling on the first conveyer pipe, this first mouth of inhaling sets up downwards to with the space intercommunication of planting a kind, so, when first conveyer pipe lets in the air current, will produce the negative pressure in first mouth department of inhaling, thereby absorb the seed in the space of planting a kind to first conveyer pipe through first mouth of inhaling, and carry the seed to the seeding monomer under the effect of air current. In other words, according to the venturi effect, when letting in the air current in first conveyer pipe, the first suction mouth department that sets up downwards will produce negative pressure suction to directly absorb the seed in the branch kind space to first conveyer pipe through first suction mouth, and the seed that gets into first conveyer pipe still can follow first conveyer pipe and move to the seeding monomer under the drive of air current, because the suction of first suction mouth is limited, it will absorb the seed gradually, thereby realize the purpose with seed evenly distributed, and evenly get into the seed of first conveyer pipe through the air current transport, this transport mode is difficult for appearing blockking up, carry more stably.

Compared with the prior art, the seeder provided by the embodiment of the invention has the same beneficial effects as the pneumatic seed divider in the prior art, and the detailed description is omitted.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. It is obvious to a person skilled in the art that other relevant figures can also be derived from these figures without inventive effort.

Fig. 1 is a schematic perspective view of a pneumatic seed divider according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure view of a pneumatic seed divider according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a part of a toggle mechanism of a pneumatic type seed divider according to an embodiment of the invention.

Fig. 4 is a schematic cross-sectional view of a pneumatic seed divider according to an embodiment of the present invention, the pneumatic seed divider having a hopper structure.

Fig. 5 is a schematic partial structural view of a blanking adjusting mechanism of the pneumatic seed divider according to the embodiment of the present invention.

Icon: 10-pneumatic type seed divider; 11-a first delivery duct; 111-a first suction port; 12-a second delivery duct; 122-a second suction port; 13-seed separating box; 130-a seed separating space; 131-a first gas flow inlet; 132-a second gas flow inlet; 133-a reentrant surface; 136-a blanking slideway; 1361-feed opening; 16-a toggle mechanism; 161-toggle driver; 162-a shifting shaft; 1621-a poke piece; 17-a hopper; 18-a blanking adjusting mechanism; 181-adjusting plate; 182-an adjusting member; 1821-adjusting the teeth; 19-gas pipe; 900-seed.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following describes in detail embodiments of the present invention with reference to the drawings.

Referring to fig. 1, fig. 1 is a schematic perspective view of a pneumatic type seed divider 10 according to an embodiment of the present invention.

Embodiments of the present invention provide a pneumatic seed divider 10, where the pneumatic seed divider 10 has characteristics of being capable of uniformly dividing a seed 900 into a plurality of portions and stably conveying the seed 900. The pneumatic seed divider 10 can be applied to seeding machines and other scenes needing uniform conveying, and of course, the pneumatic seed divider 10 can also be independently used. When the pneumatic seed divider 10 is applied to a seeding machine, the pneumatic seed divider 10 is connected to a plurality of seeding units of the seeding machine to respectively convey seeds 900 to the plurality of seeding units through the pneumatic seed divider 10, and the seeding machine also has the characteristics that the seeds 900 can be uniformly divided into a plurality of parts and the seeds 900 can be stably conveyed because the seeding machine adopts the pneumatic seed divider 10 provided by the embodiment of the invention.

The structural composition, the working principle and the beneficial effects of the pneumatic seed divider 10 according to the embodiment of the present invention will be described in detail below.

With continuing reference to fig. 1 and 2, fig. 2 is a schematic cross-sectional view of a pneumatic type seed divider 10 according to an embodiment of the present invention.

This pneumatic type seed divider 10 is including seed dividing box 13 and many first conveyer pipes 11, wherein, is equipped with seed dividing space 130 in the seed dividing box 13, and this seed dividing space 130 is used for holding seed 900, and many first conveyer pipes 11 all connect in seed dividing box 13, and many first conveyer pipes 11 all are used for the seeding monomer intercommunication with the seeder, still are used for letting in the air current to seed 900 is carried to the seeding monomer under the effect of air current. And first delivery pipe 11 is last to be seted up first and to absorb mouth 111, and this first absorption mouth 111 sets up downwards to with divide kind of space 130 intercommunication, so, when first delivery pipe 11 lets in the air current, will produce the negative pressure in first absorption mouth 111 department, thereby absorb seed 900 to first delivery pipe 11 through first absorption mouth 111 to carry seed 900 to the monomer of sowing under the effect of air current. In other words, according to the venturi effect, when the air flow is introduced into the first conveying pipe 11, the first suction port 111 disposed downward will generate negative pressure suction force to directly suck the seeds 900 in the seed separation space 130 to the first conveying pipe 11 through the first suction port 111, and the seeds 900 entering the first conveying pipe 11 will also move to the single sowing body along the first conveying pipe 11 under the driving of the air flow, because the suction force of the first suction port 111 is limited, the seeds 900 will be gradually sucked, so as to achieve the purpose of uniformly distributing the seeds 900, and the seeds 900 uniformly entering the first conveying pipe 11 are conveyed through the air flow, and the conveying manner is not easy to be blocked and the conveying is relatively stable.

Further, a plurality of first conveying pipes 11 are arranged in parallel at intervals, the pneumatic seed separator 10 may further include a plurality of second conveying pipes 12, and the plurality of second conveying pipes 12 are connected to the seed separating box 13. The second conveying pipes 12 are parallel to the first conveying pipes 11 and are arranged above the first conveying pipes 11 at intervals and used for being communicated with seeding units of the seeder, a second suction port 122 is formed in the second conveying pipe 12, the second suction port 122 is communicated with the seed separating space 130, the second conveying pipes 12 are also used for introducing air flow, negative pressure is generated at the second suction port 122, and therefore the seeds 900 to the second conveying pipes 12 are sucked, the purpose of conveying the seeds 900 to the seeding units is achieved together with the first conveying pipes 11, and the capability of distributing and conveying the seeds 900 of the pneumatic seed-separating device 10 is improved. The second suction port 122 of the second delivery pipe 12 is also disposed downward, and the process of distributing the seeds 900 and delivering the seeds 900 is similar to that of the first delivery pipe 11, and will not be described again.

In addition, the first suction port 111 and the second suction port 122 have an interval between their projections on the horizontal plane, in other words, the second suction port 122 is disposed to be offset from the first suction port 111, so as to suck the seeds 900 below more uniformly at the same time, thereby improving the uniformity of the pneumatic seed separator 10 in distributing the seeds 900.

It should be noted that in other embodiments, the conveying pipes may be arranged in other manners, such as in other layers, such as 3 layers or 4 layers. Alternatively, the upper and lower layers of ducts may be staggered to more evenly suck the seeds 900 below.

In addition, the sizes of both the second suction port 122 and the first suction port 111 may be different to adjust the capacity thereof to suck the lower seeds 900 by adjusting the opening sizes of the suction ports having different heights, so that the suction capacities of the second suction port 122 and the first suction port 111 are substantially the same to further improve the uniformity of dispensing the seeds 900. Of course, the two can also have different suction capacities so as to adapt to different sowing requirements and the like.

Furthermore, the seed separating box 13 is further provided with a discharging slideway 136 communicated with the seed separating space 130, the discharging slideway 136 is obliquely arranged, the bottom end of the discharging slideway 136 is provided with a discharging opening 1361, by arranging the discharging slideway 136, the seeds 900 can slide down to the discharging opening 1361 along the discharging slideway 136 and then enter the seed separating space 130 so as to disperse the seeds 900, and the falling speed of the seeds 900 is reduced, so that the seeds 900 can be sucked by the first sucking opening 111 and the second sucking opening 122 conveniently, and the height of the discharging opening 1361 is lower than that of the first sucking opening 111, therefore, the seeds 900 fall into the seed separating space 130 and then enter the first sucking opening 111 or the second sucking opening 122, the seeds 900 are prevented from being directly sucked, and the uniformity of distributing the seeds 900 is further improved.

It should be noted that, in this embodiment, the first conveying pipe 11 and the second conveying pipe 12 are both disposed through the seed separating box 13, and the blanking chute 136 passes through the gap between the first conveying pipe 11 and the second conveying pipe 12, so that the seeds 900 can be dispersed by the first conveying pipe 11 or the second conveying pipe 12 when sliding down along the blanking chute 136, so as to further improve the uniformity of the seeds 900 sucked by the first conveying pipe 11 and the second conveying pipe 12.

Further, the seed separating box 13 may further be provided with a first air inlet 131, the first air inlet 131 is disposed on a side wall of the seed separating space 130, and is used for horizontally introducing air flow into the seed separating space 130, so as to raise the seeds 900 falling through the discharging opening 1361 by the air flow, so as to disperse the seeds 900, and facilitate direct suction of the seeds 900 through the first suction opening 111 and the second suction opening 122 disposed downward.

It should be noted that, a folding surface 133 may be provided on the sidewall of the seed separating space 130, the folding surface 133 is disposed obliquely and corresponds to the material outlet 1361, the folding surface 133 is used for receiving the seeds 900 falling through the material outlet 1361 and guiding the seeds 900 to fall along the folding surface 133, that is, the material outlet chute 136 guides the seeds 900 to fall along an oblique path, and the folding surface 133 guides the seeds 900 to fall obliquely in the opposite direction, as shown in fig. 2, thereby further dispersing the seeds 900 and reducing the falling speed of the seeds 900. The first airflow inlet 131 is disposed below the folding surface 133, so that the seeds 900 are raised by the airflow entering through the first airflow inlet 131 after falling along the folding surface 133, and the seeds 900 are further dispersed.

Referring to fig. 2 and fig. 3, fig. 3 is a schematic partial structural view of the toggle mechanism 16 of the pneumatic type seed divider 10 according to the embodiment of the present invention.

Further, the seed separating box 13 may further be provided with a second airflow inlet 132, the second airflow inlet 132 is disposed on the bottom wall of the seed separating space 130, and is used for introducing airflow into the seed separating space 130 to lift the seeds 900 in the seed separating space 130 by the airflow entering through the second airflow inlet 132, so as to reduce the seeds 900 accumulated on the bottom wall of the seed separating space 130, and facilitate the downward arrangement of the first suction port 111 and the second suction port 122 to directly suck the seeds 900.

In addition, the opening direction of the second airflow inlet 132 is obliquely arranged and is approximately arranged to the discharging opening 1361, as shown in fig. 2, so that the seeds 900 can be further dispersed by the airflow entering through the second airflow inlet 132 after falling through the discharging opening 1361, and the seeds 900 after falling through the turning surface 133 can be lifted by the airflow entering through the second airflow inlet 132 while being lifted by the seeds 900 entering through the first airflow inlet 131, so that the seeds 900 can be lifted together, and the seeds 900 can be sucked by the first conveying pipe 11 and the second conveying pipe 12.

In addition, the bottom wall of the seed separating space 130 can be inclined, and the pneumatic type seed separator 10 can further comprise a toggle mechanism 16, wherein the toggle mechanism 16 is disposed in the seed separating space 130 and is used for driving the seeds 900 accumulated on the bottom wall of the seed separating space 130, so that the seeds 900 move towards the second airflow inlet 132, the seeds 900 on the bottom wall of the seed separating space 130 are lifted by the airflow entering through the second airflow inlet 132, and the seeds 900 are prevented from accumulating on the bottom wall of the seed separating space 130.

It should be noted that, in this embodiment, the toggle mechanism 16 includes a toggle driving element 161 and a toggle shaft 162 connected to each other, the toggle shaft 162 is rotatably connected to the seed sorting box 13, and a plurality of toggle pieces 1621 are convexly disposed on a side surface of the toggle driving element 162, as shown in fig. 3, the toggle driving element 161 can drive the toggle shaft 162 to rotate, so as to toggle the seed 900 to the second airflow inlet 132 through the toggle pieces 1621, so that the airflow entering through the second airflow inlet 132 lifts the seed 900. Of course, in other embodiments, the toggle mechanism 16 may be other mechanisms capable of moving the seed 900.

With continuing reference to fig. 1 and 2, and with further reference to fig. 4 and 5, fig. 4 is a schematic cross-sectional view of a pneumatic type seed divider 10 having a hopper 17 and the like according to an embodiment of the present invention. Fig. 5 is a schematic partial structural view of the discharging adjustment mechanism 18 of the pneumatic seed divider 10 according to the embodiment of the present invention.

The pneumatic seed divider 10 may further include an air pipe 19, and the air pipe 19 is in communication with the first conveying pipe 11 and the second conveying pipe 12, and also in communication with the first air inlet 131 and the second air inlet 132, so as to simultaneously convey air to the first conveying pipe 11, the second conveying pipe 12, the first air inlet 131, and the second air inlet 132. In fig. 4, the arrows in the air pipe 19, the first conveying pipe 11, and the second conveying pipe 12 indicate the flowing direction of the air flow, and the arrows in the seed separating space 130 indicate the flowing track of the seeds 900.

Moreover, the pneumatic seed separator 10 may further include a hopper 17 and a discharging adjustment mechanism 18, the hopper 17 is used for accommodating the seeds 900, and the bottom of the hopper is communicated with the top opening of the discharging slideway 136, and the discharging adjustment mechanism 18 is disposed at the bottom of the hopper 17 and is used for adjusting the size of the top opening of the discharging slideway 136, so as to adjust the amount of the seeds 900 entering the discharging slideway 136, adjust the falling amount of the seeds 900, and improve the adjustment capability thereof.

It should be noted that, in this embodiment, the discharging adjustment mechanism 18 includes an adjustment plate 181 and an adjustment member 182, the adjustment plate 181 is slidably connected to the opening at the top of the discharging chute 136, so that the adjustment plate 181 can slide laterally, thereby adjusting the size of the opening at the top of the discharging chute 136, and achieving the purpose of controlling the falling flow rate of the seeds 900. The adjusting member 182 is provided with an adjusting tooth 1821, and the adjusting tooth 1821 is engaged with the opening of the adjusting plate 181, so that the adjusting plate 181 can slide transversely by rotating the adjusting member 182. Of course, in other embodiments, the material adjusting mechanism 18 can be other mechanisms capable of adjusting the size of the opening.

In operation, air flows through the air pipe 19 into the first delivery pipe 11, the second delivery pipe 12, the first air inlet 131 and the second air inlet 132, respectively, to generate suction at the first suction port 111 and the second suction port 122 according to the venturi effect. The seeds 900 enter the seed separating space 130 through the hopper 17 and the discharging slide way 136, the falling amount can be controlled by the discharging adjusting mechanism 18, the seeds 900 fall along the return surface 133, the falling seeds 900 are blown up through the lateral air flow of the first air flow inlet 131 and also blown up through the upward oblique air flow of the second air flow inlet 132, and the seeds 900 are sucked by the first suction port 111 and the second suction port 122 and then are conveyed to a specified target through the corresponding conveying pipes. The seeds 900 falling to the bottom wall of the seed separating space 130 are also pulled to the second air inlet 132 by the pulling mechanism 16, so that the seeds 900 are blown by the upward and oblique air flow through the second air inlet 132.

The working principle of the pneumatic seed divider 10 provided by the embodiment of the invention is as follows:

pneumatic seed separator 10 is equipped with branch kind space 130 including seed separating box 13 and many first conveyer pipes 11 in the seed separating box 13, and this branch kind space 130 is used for holding seed 900, and many first conveyer pipes 11 all connect in seed separating box 13, and many first conveyer pipes 11 all are used for the seeding monomer intercommunication with the seeder, still are used for letting in the air current to seed 900 is carried to the seeding monomer under the effect of air current. And first delivery pipe 11 is last to be seted up first and to absorb mouth 111, and this first absorption mouth 111 sets up downwards to with divide kind of space 130 intercommunication, so, when first delivery pipe 11 lets in the air current, will produce the negative pressure in first absorption mouth 111 department, thereby absorb seed 900 to first delivery pipe 11 through first absorption mouth 111 to carry seed 900 to the monomer of sowing under the effect of air current. In other words, according to the venturi effect, when the air flow is introduced into the first delivery pipe 11, the first suction port 111 disposed downward generates negative pressure suction force to directly suck the seeds 900 in the seed separation space 130 to the first delivery pipe 11 through the first suction port 111, and the seeds 900 entering the first delivery pipe 11 can also move to the sowing unit along the first delivery pipe 11 under the driving of the air flow, because the suction force of the first suction port 111 is limited, the seeds 900 are gradually sucked, so that the purpose of uniformly distributing the seeds 900 is achieved, and the seeds 900 uniformly entering the first delivery pipe 11 are uniformly conveyed through the air flow, the conveying manner is not easy to be blocked, and the conveying is stable.

In summary, the present invention provides a pneumatic seed divider 10, which can uniformly divide a seed 900 into a plurality of portions and stably deliver the seed 900.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Also, the embodiments should be considered as exemplary and non-limiting.

Claims

1. A pneumatic seed divider is characterized by comprising a seed dividing box (13) and a plurality of first conveying pipes (11); a seed separating space (130) is arranged in the seed separating box (13), and the seed separating space (130) is used for accommodating seeds (900);

the first conveying pipes (11) are connected with the seed separating box (13) and are used for being communicated with a seeding single body of a seeding machine; a first suction port (111) is formed in the first conveying pipe (11), and the first suction port (111) is arranged downwards and communicated with the seed separation space (130); the first conveying pipe (11) is used for introducing air flow to generate negative pressure at the first suction port (111), so that the seeds (900) in the seed separation space (130) are sucked to the first conveying pipe (11) through the first suction port (111), and the seeds (900) are conveyed to the sowing single bodies under the action of the air flow;

a blanking slideway (136) communicated with the seed separating space (130) is also arranged on the seed separating box (13); the blanking slide way (136) is obliquely arranged, and a blanking opening (1361) is formed in the bottom end of the blanking slide way and used for enabling the seeds (900) to slide to the blanking opening (1361) along the blanking slide way (136) to enter the seed separating space (130), and the height of the blanking opening (1361) is lower than that of the first suction opening (111);

a return surface (133) is arranged on the side wall of the seed separation space (130); the turning surface (133) is obliquely arranged and corresponds to the discharging opening (1361) so as to receive the seeds (900) falling through the discharging opening (1361) and enable the seeds (900) to fall along the turning surface (133); wherein the inclination direction of the folding surface (133) is opposite to the inclination direction of the blanking slideway (136).

2. A pneumatic seed divider according to claim 1, wherein the first plurality of feed tubes (11) are arranged in parallel and spaced apart relationship, the pneumatic seed divider further comprising a second plurality of feed tubes (12);

the second conveying pipes (12) are connected to the seed sorting box (13), are parallel to the first conveying pipes (11), and are arranged above the first conveying pipes (11) at intervals; many second conveyer pipes (12) are used for the seeding monomer intercommunication with the seeder, the second has been seted up on second conveyer pipe (12) and has been absorb mouth (122), the second absorb mouth (122) with divide kind of space (130) intercommunication, second conveyer pipe (12) are used for letting in the air current, with the second is absorbed mouth (122) department and is produced the negative pressure, thereby absorbs seed (900) extremely second conveyer pipe (12), with under the effect of air current will seed (900) carry extremely seeding monomer.

3. A pneumatic dispenser according to claim 2, wherein the first suction port (111) and the second suction port (122) each have a spacing between their projections on a horizontal plane.

4. A pneumatic seed divider according to claim 1, characterized in that the seed dividing box (13) is further provided with a first air inlet (131);

the first air inlet (131) is arranged on the side wall of the seed separation space (130) and is used for horizontally introducing air flow into the seed separation space (130) so as to lift the seeds (900) falling through the discharging opening (1361) through the air flow.

5. A pneumatic seed divider according to claim 4, wherein the first air inlet (131) is arranged below the switchback face (133) to lift the seed (900) falling along the switchback face (133).

6. A pneumatic seed divider according to any one of claims 1-5, characterized in that the seed dividing box (13) is further provided with a second air inlet (132);

the second airflow inlet (132) is arranged on the bottom wall of the seed separation space (130) and is used for introducing airflow into the seed separation space (130) so as to lift the seeds (900) in the seed separation space (130) through the airflow.

7. A pneumatic seed divider according to claim 6, characterized in that the opening direction of the second air inlet (132) is arranged obliquely and directed towards the feed opening (1361).

8. A pneumatic seed divider according to claim 6, characterized in that the bottom wall of the seed-dividing space (130) is inclined, the pneumatic seed divider further comprising a toggle mechanism (16);

the poking mechanism (16) is arranged in the seed separation space (130) and is used for driving the seeds (900) accumulated on the bottom wall of the seed separation space (130) to move the seeds (900) to the second air flow inlet (132).

9. A seeding machine comprising a pneumatic seed separator according to any one of claims 1 to 8.