CN215223046U - Seed metering mechanism of wheat precision planter - Google Patents

Abstract

The utility model discloses a seed discharging mechanism of a wheat precision seeder, which comprises a bracket, wherein a plurality of seed hoppers are arranged on the bracket, and the lower end of each seed hopper is connected with a seed discharging pipe; the bracket is provided with a driving mechanism, the driving mechanism is in transmission connection with a first rotating shaft, and the first rotating shaft penetrates through all the seed sowing pipes; the upper portion of seed metering pipe is provided with the cylinder pipe, be provided with the rotary drum in the cylinder pipe, the fixed cover of rotary drum is established in first pivot, the axis of rotary drum is same axis with the axis of cylinder pipe, evenly is provided with at least three interface along the circumferencial direction on the rotary drum, and it has the flabellum to peg graft on the interface, and the top of flabellum contacts with the interior cylinder face of cylinder pipe, and the top of flabellum can be located the seed metering mouth that the seed was fought. The wheat seed sowing device has the advantages that wheat seeds in the seed hopper can be brought into the seed sowing pipe by the fan blades in the seed sowing pipe, the phenomenon that wheat seed knots block a seed sowing port is avoided, and the wheat seeds are sowed precisely along with the rotation of the fan blades and the pocket wheels.

Description

Seed metering mechanism of wheat precision planter

Technical Field

The utility model belongs to the technical field of agricultural machine, concretely relates to seed metering mechanism of wheat precision planter.

Background

In order to facilitate the wheat planting and management, farmers generally adopt a seeding machine to simultaneously perform multi-row seeding when planting wheat. Therefore, the existing seeder is provided with a seed hopper with a large volume, and the lower part of the seed hopper is communicated with a plurality of seed tubes. In order to ensure that the seeder can advance for a sufficient distance at one time, farmers generally accumulate a large amount of wheat seeds in the seed hopper at one time, but the existing wheat precision seeder generally adopts single-grain seeding or double-grain seeding. Therefore, when the number of wheat seeds in the seed hopper is too large in the current period, hardening is easily generated between the wheat seeds at the lower end under the influence of the gravity of the wheat seeds at the upper part, so that the wheat seeds at the lower end cannot be smoothly discharged from the seed discharging port. If the condition is not found in time in the sowing process, the phenomenon that wheat seeds do not exist in partial areas of the corresponding seed ditches can be caused, and even the subsequent reseeding of farmers is required.

Disclosure of Invention

An object of the utility model is to provide a seed metering mechanism of wheat precision planter to the defect that wheat seed hardens, the seed metering mouth blocks up easily takes place in the seed fill to current wheat precision planter seed metering mechanism to solve above-mentioned technical problem, guarantee that wheat seed can discharge smoothly from the seed fill, and then realize precision seeding.

In order to achieve the above object, the present invention provides the following technical solutions: a seed sowing mechanism of a wheat precision seeder comprises a bracket, wherein at least three seed hoppers are arranged on the bracket, and the lower end of each seed hopper is connected with a seed sowing pipe; the support is provided with a driving mechanism, the driving mechanism is in transmission connection with a first rotating shaft, and the first rotating shaft penetrates through all the seed sowing pipes; the utility model discloses a seed metering device, including seed metering pipe, rotary drum, fan blade, internal cylinder face contact of top and the interior cylinder face contact of cylinder pipe, the top of flabellum can be located the seed metering mouth of seed fill, the upper portion of seed metering pipe is provided with the cylinder pipe, be provided with the rotary drum in the cylinder pipe, the fixed cover of rotary drum is established in first pivot, the axis of rotary drum is same axis with the axis of cylinder pipe, evenly be provided with at least three interface along the circumferencial direction on the rotary drum, it has the flabellum to peg graft on the interface, the top of flabellum contacts with the interior cylinder face of cylinder pipe, the top of flabellum can be located the seed metering mouth of seed fill. Therefore, because each seed discharging pipe is provided with one seed hopper, the quantity of wheat seeds accumulated in the seed hopper is greatly reduced, and the fan blades arranged in the seed discharging pipes can bring the wheat seeds at the seed discharging port of the seed hopper into the gap between every two adjacent fan blades, so that the wheat seeds are prevented from being hardened and then cannot smoothly fall into the seed discharging pipes. And along with the rotation of the fan blades, the wheat seeds can slide from the opening below the seed sowing pipe, so that the wheat seeds can be sown.

The utility model is further improved in that a second rotating shaft is arranged on the bracket and is in transmission connection with the first rotating shaft; the lower extreme of cylinder pipe is provided with square pipe, square pipe and cylinder pipe pass through second intercommunication mouth intercommunication, all square pipes are passed in the second pivot, square intraductal nest eye wheel that is provided with, nest eye wheel fixed mounting is in the second pivot, and the outer face of cylinder of nest eye wheel is tangent with the inner wall of square pipe, evenly is provided with the recess on the outer face of cylinder of nest eye wheel, can control the discharge quantity of wheat kind through setting up the nest eye wheel in cylinder pipe below like this to guarantee that wheat kind can realize single grain seeding or two-grain seeding when the seeding. Moreover, for the wheat seeds which fall into the grooves, the wheat seeds can be swept out through the inner wall of the square pipe, and the phenomenon that the wheat seeds planted in one position are too many is avoided.

The utility model discloses a further improvement still, the flabellum includes long board and short slab, and the one end and the rotary drum of long board are pegged graft, and the other end and the short slab of long board are connected perpendicularly, long board and short slab constitute "L" shape, the short slab can contact with the inner cylinder face of cylinder pipe, and at the rotation in-process of flabellum like this, can will pile up in the wheat kind of lower part dials the space between two adjacent flabellums through the short slab, guarantees to contain sufficient wheat kind between two adjacent flabellums.

The utility model discloses a further improvement still, the antetheca of seed metering pipe is detachable construction to the convenient flabellum to the seed metering intraductal is installed or is dismantled, and other structures to the seed metering intraductal are overhauld to the convenience simultaneously.

The utility model discloses a further improvement still, the upper portion demountable installation that the seed was fought has the filter, be provided with the kind of hole that falls on the filter. Therefore, wheat seeds poured into the seed hopper can be screened through the filter plate, and the phenomenon that sundries with larger volume such as stones enter the lower part of the seed hopper to cause blockage in the seed sowing pipe is avoided.

The utility model discloses a further improvement still, the support is provided with two stands, is provided with the crossbeam between two stands, be provided with T type groove on the crossbeam, T type inslot is provided with the bolt, the seed is fought and is used for being provided with the through-hole with one side of leg joint, and the bolt passes and is connected with the nut behind the through-hole. Therefore, the distance between the adjacent seed buckets can be flexibly adjusted according to the seeding density of the wheat.

The utility model discloses a further improvement still, the stand is the telescopic link, the crossbeam is the telescopic link. Therefore, the height of the upright post and the length of the cross beam on the bracket can be flexibly adjusted according to the specific conditions of the land and the planting depth of the wheat, so that the whole seed metering mechanism is adaptive to the land to be seeded.

The beneficial effects of the utility model reside in that, the utility model discloses can will pile up in the seed below fighting the wheat kind through the flabellum that sets up in the seed metering intraductal dials down to the seed metering intraductally, avoid too much wheat kind of a seed knot in the lower part that the seed was fought, the wheat kind can drop from the seed metering pipe in proper order along with the rotation of flabellum moreover. Additionally, the utility model discloses still be provided with the nest eye wheel in the below of rotary drum, through setting up the recess on the outer face of cylinder of nest eye wheel, can further guarantee the quantity that wheat kind dropped, avoid the seeding quantity of wheat kind too much in the unit area to influence the growth of follow-up wheat.

Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

In the figure, 1, a seed tube, 2, a first rotating shaft, 3, a second rotating shaft, 4, a driving mechanism, 5, an upright post, 6, a cross beam, 7, a seed hopper, 8, a transmission mechanism, 9, a filter plate, 10, a rotating drum, 11, a long plate, 12, a short plate, 13, a cellular wheel, 14, a square tube, 15, a cylindrical tube, 16, a T-shaped groove and 17, fan blades are arranged.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The following explains key terms appearing in the present invention.

As shown in fig. 1 to 2, the utility model provides a seed metering mechanism of wheat precision planter, it includes the support, the both ends of support are provided with stand 5, are provided with crossbeam 6 between the stand 5 at both ends, demountable installation has seed fill 7 on crossbeam 6, the quantity of seed fill 7 has three at least. Preferably, a T-shaped groove 16 is formed in the surface, which is used for being in contact with the seed hopper 7, of the cross beam 6 of the support along the length direction, a bolt is arranged in the T-shaped groove 16, a through hole is formed in the side, which is in contact with the cross beam 6, of the seed hopper 7, and the seed hopper 7 is installed on the cross beam 6 through a nut after the bolt arranged in the T-shaped groove 16 penetrates through the through hole. The upper part in the seed hopper 7 is detachably provided with a filter plate 9, the filter plate 9 is provided with a plurality of seed falling holes, and the size of the seed falling holes is matched with that of wheat seeds. In addition, when the seed discharging mechanism is used for the sowing of other crops, the size of the seed dropping hole can be selected to be suitable for the specification of the sowed seed.

The seed discharging pipe 1 is arranged at the lower part of the seed hopper 7, the seed discharging pipe 1 is sequentially provided with a cylindrical pipe 15 and a square pipe 14 from top to bottom, the lower end of the cylindrical pipe 15 is fixedly connected with the upper end of the square pipe 14, and the cylindrical pipe 15 and the square pipe 14 preferably adopt an integrated structure. The axis of the cylindrical pipe 15 is a horizontal line, the upper end of the cylindrical pipe 15 is provided with a first communicating port, and the first communicating port is opposite to a seed discharging port at the lower end of the seed hopper 7. The lower end of the cylindrical pipe 15 is provided with a second communicating opening, and the cylindrical pipe 15 is communicated with the square pipe 14 through the second communicating opening. The cylindrical tube 15 is internally provided with a rotating drum 10, and the axis of the rotating drum 10 and the axis of the cylindrical tube 15 are in the same straight line. A plurality of inserting ports are uniformly arranged on the outer circumference of the rotary drum 10 along the circumferential direction, fan blades 17 are inserted into the inserting ports, the top ends of the fan blades 17 can be in contact with the inner cylindrical surface of the cylindrical pipe 15, and when the top ends of the fan blades 17 are located at the highest point, the top ends of the fan blades 17 can penetrate through the first communicating port. Preferably, the fan blades 17 comprise a long plate 11 and a short plate 12, one end of the long plate 11 is inserted into the rotary drum 10, the other end of the long plate 11 is vertically connected with the short plate 12, and the long plate 11 and the short plate 12 form an L shape. And the short plates 12 are oriented in the same direction as the rotation of the drum 10. In addition, the number of the fan blades 17 on the rotary drum 10 and the rotating speed of the rotary drum 10 can be flexibly set and adjusted according to the seeding density of wheat. The square tube 14 is internally provided with a pocket wheel 13, and the outer cylindrical surface of the pocket wheel 13 is tangent to the inner tube wall of the square tube 14. A plurality of grooves are uniformly arranged on the outer cylindrical surface of the cell wheel 13, the size of each groove is matched with that of the wheat seeds, namely one or two wheat seeds can be placed in each groove.

In addition, a first rotating shaft 2 and a second rotating shaft 3 which are parallel to the cross beam 6 are arranged at the lower part of the support, the axis of the first rotating shaft 2 and the axis of the cylindrical pipe 15 are the same straight line, and the axis of the second rotating shaft 3 and the axis of the pocket wheel 13 are the same straight line. The first rotating shaft 2 and the second rotating shaft 3 penetrate through all the seed sowing pipes 1, the rotating cylinders 10 in the seed sowing pipes 1 are fixedly sleeved on the first rotating shaft 2, and the pocket wheels 13 are fixedly sleeved on the second rotating shaft 3. In addition, one side of support is provided with actuating mechanism 4, actuating mechanism 4 includes driving motor, driving motor's output shaft is connected with the one end transmission of first pivot 2, pass through drive mechanism 8 transmission connection between first pivot 2 and the second pivot 3, drive mechanism 8 preferably adopts gear drive mechanism. Furthermore, in order to conveniently overhaul structures such as fan blades 17 and pocket wheels 13 in the seed discharge tube 1, the front wall of the seed discharge tube 1 is detachably connected to the seed discharge tube 1, the upper end of the front wall of the seed discharge tube 1 is preferably connected with the lower end of the seed hopper 7 by a hinge, and the left end and the right end of the front wall are respectively connected with the left side wall and the right side wall of the seed discharge tube 1 by fasteners. In addition, in order to adjust the height and width of the whole seeding mechanism conveniently and enable the seeding mechanism to be suitable for a seed ditch which is arranged on the ground in advance, the cross beam 6 of the bracket and the upright posts 5 at two ends of the bracket preferably adopt telescopic rod structures.

The utility model provides a pair of seed metering mechanism of wheat precision planter is at the during operation, and the lower part at seed hopper 7 is piled up after the seed falling hole on filter plate 9 filters to the wheat seed of pouring to and automatic landing is to in the space between two adjacent flabellum 17. When the wheat seeds are hardened, partial wheat seeds at the lower end of the seed hopper 7 can be pulled down into the gaps through the rotation of the rear end fan blades 17, and the number of the wheat seeds which can be accommodated in each gap is preferably matched with the number of the grooves in the pocket wheel 13. Meanwhile, along with the rotation of the first rotating shaft 2, the fan blades 17 can drive the corresponding wheat seeds to rotate in the cylindrical pipe 15, when the fan blades 17 rotate to the position that the gap between the adjacent fan blades 17 is opposite to the opening at the upper end of the square pipe 14, the wheat seeds in the corresponding gaps sequentially slide from the second communicating opening and fall into the groove on the cell wheel 13. Thus, along with the rotation of the pocket wheel 13, when the opening of the groove on the pocket wheel 13 faces downwards, the wheat seeds in the corresponding groove fall into the seed ditch, thereby realizing precision seeding.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be included within the scope of the present invention; those skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all such changes or substitutions are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A seed sowing mechanism of a wheat precision seeder is characterized by comprising a bracket, wherein at least three seed hoppers (7) are arranged on the bracket, and the lower end of each seed hopper (7) is connected with a seed sowing pipe (1); the bracket is provided with a driving mechanism (4), the driving mechanism (4) is in transmission connection with a first rotating shaft (2), and the first rotating shaft (2) penetrates through all the seed tubes (1); the upper portion of seed metering pipe (1) is provided with cylinder pipe (15), be provided with rotary drum (10) in cylinder pipe (15), the fixed cover of rotary drum (10) is established on first pivot (2), the axis of rotary drum (10) is same axis with the axis of cylinder pipe (15), evenly be provided with at least three interface along the circumferencial direction on rotary drum (10), it has flabellum (17) to peg graft on the interface, the top of flabellum (17) contacts with the interior cylinder face of cylinder pipe (15), the top of flabellum (17) can be located the seed metering mouth of seed fill (7).

2. The seed metering mechanism of the wheat precision seeder according to claim 1, characterized in that a second rotating shaft (3) is arranged on the bracket, and the second rotating shaft (3) is in transmission connection with the first rotating shaft (2); the lower extreme of cylinder pipe (15) is provided with square pipe (14), square pipe (14) and cylinder pipe (15) are through second intercommunication mouth intercommunication, all square pipe (14) are passed in second pivot (3), be provided with nest eye wheel (13) in square pipe (14), nest eye wheel (13) fixed mounting is on second pivot (3), and the outer face of cylinder is tangent with the inner wall of square pipe (14) outward of nest eye wheel (13), evenly is provided with the recess on the outer face of cylinder of nest eye wheel (13).

3. The seed metering mechanism of a wheat precision seeder according to claim 1, characterized in that the fan blades (17) comprise a long plate (11) and a short plate (12), one end of the long plate (11) is inserted into the rotary drum (10), the other end of the long plate (11) is vertically connected with the short plate (12), the long plate (11) and the short plate (12) form an "L" shape, and the short plate (12) can be contacted with the inner cylindrical surface of the cylindrical tube (15).

4. The seed metering mechanism of the wheat precision seeder according to claim 1, characterized in that the front wall of the seed metering pipe (1) is a detachable structure.

5. The seed sowing mechanism of the wheat precision seeder according to claim 1 or 4, characterized in that a filter plate (9) is detachably mounted on the upper part of the seed hopper (7), and seed falling holes are arranged on the filter plate (9).

6. The seed metering mechanism of the wheat precision seeder according to claim 1 or 2, characterized in that the support is provided with two upright posts (5), a cross beam (6) is arranged between the two upright posts (5), a T-shaped groove (16) is arranged on the cross beam (6), a bolt is arranged in the T-shaped groove (16), a through hole is arranged on one side of the seed hopper (7) used for being connected with the support, and the bolt is connected with a nut after passing through the through hole.

7. The seed metering mechanism of the wheat precision seeder according to claim 6, characterized in that the upright (5) is an expansion link and the cross beam (6) is an expansion link.

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