CN210694890U

CN210694890U - Seeding quantity adjustable seed metering wheel assembly and seed metering device

Info

Publication number: CN210694890U
Application number: CN201921326871.7U
Authority: CN
Inventors: 赵晓顺; 郝建军; 赵达卫; 梁敬; 于华丽; 于凤超; 马跃进; 马志凯; 赵建国; 段红佳
Original assignee: Hebei Agricultural University
Current assignee: Hebei Agricultural University
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-09
Anticipated expiration: 2029-08-15

Abstract

The utility model provides a seed metering wheel subassembly and seed metering ware of adjustable seeding volume. The utility model discloses a seed metering wheel subassembly of adjustable seeding volume, it includes seed metering wheel, regulating spindle and spiro union at the epaxial adjusting nut of regulating spindle to and suit in the regulating spindle and elasticity support tightly in the elasticity top of first wheel body and second wheel body and push away the piece. The seed sowing wheel comprises a first wheel body and a second wheel body which are coaxially arranged, a plurality of cavities with different lengths are formed in the peripheral surface of the first wheel body, the cavities are arranged along the circumferential direction of the first wheel body and are alternately distributed at intervals, each cavity extends along the axial direction of the first wheel body, a plurality of convex columns with different lengths are correspondingly formed in the peripheral surface of the second wheel body, the convex columns are alternately distributed at intervals, each convex column is placed in the corresponding cavity to form a pit for containing seeds, and the size of the pit is adjustable due to the fact that the adjusting nut is screwed in or out. The utility model discloses a seed metering wheel subassembly of adjustable seeding volume can realize the regulation of seeding volume to there is better practicality.

Description

Seeding quantity adjustable seed metering wheel assembly and seed metering device

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to seed metering wheel subassembly of adjustable seeding volume, in addition, the utility model discloses still relate to a seed metering ware that has this seed metering wheel subassembly of adjustable seeding volume.

Background

Peanuts are one of important economic crops in China, the planting area is large, and along with adjustment of planting structures and popularization of new technologies, peanut planting mechanization is higher and higher. The conventional peanut hole sowing seed sowing device has a certain speed after seeds are separated from the seed sowing device, the seeds are easy to splash everywhere and can not accurately fall into seed holes due to collision with the wall of a seed conveying pipe, and the conditions of uneven plant spacing and poor hole forming effect during one-hole multi-seed sowing occur.

In addition, the existing seed sowing device can only sow seeds with a certain granularity, the phenomena of missing sowing and cavities easily occur under the condition of poor sowing precision, and the seeds with uneven granularity are sown with uneven number of seeds and waste the seeds, so that the need of a seed sowing device with adjustable cavity size is needed urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a seeding wheel assembly capable of adjusting seeding rate to adjust seeding rate.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a seeding wheel assembly capable of adjusting seeding quantity is pivoted in a seeding device shell and comprises,

the seed discharging wheel comprises a first wheel body and a second wheel body which are coaxially arranged, a plurality of cavities which are circumferentially arranged around the first wheel body and are alternately distributed at intervals are formed in the outer peripheral surface of the first wheel body, the cavities are arranged in an extending mode along the axial direction of the first wheel body, a plurality of convex columns which are alternately distributed at intervals and are different in length are formed on the outer peripheral surface of the second wheel body corresponding to the cavities, and therefore the convex columns are placed in the corresponding cavities to form cavities for containing seeds;

the adjusting shaft is fixed between the first wheel body and the second wheel body in a limiting mode, an elastic pushing piece which can elastically abut against the first wheel body and the second wheel body is sleeved on the adjusting shaft, the adjusting shaft is provided with an outward extending section which penetrates through a mounting hole of the second wheel body and is exposed, an adjusting nut is screwed on the outward extending section, and the adjusting nut is screwed in or out of the adjusting shaft to form adjustment of the size of the cavity.

Furthermore, mounting holes which are arranged along the axial direction of the seed sowing wheel and are used for the seed sowing wheel to pivot on the seed sowing device shell are formed on the first wheel body and the second wheel body, guiding limit bulges are formed in the mounting holes on the first wheel body, and guiding grooves are formed on the adjusting shafts corresponding to the guiding limit bulges.

Furthermore, the adjusting shaft is provided with a limiting plate which is abutted to the first wheel body and a shaft neck section which is connected to one side of the limiting plate, and the tail end of the shaft neck section forms the overhanging section.

Furthermore, a pivot hole with a regular polygonal cross section is formed on the axis of the adjusting shaft.

Further, the elastic pushing piece is a spring.

Compared with the prior art, the utility model discloses following advantage has:

(1) seed metering wheel subassembly of adjustable seeding volume, the cave nest that can hold the seed that constitutes through the cartridge cooperation of die cavity and projection different in size on first wheel body and the second wheel body to and the regulating spindle that sets up and spiro union at the terminal adjusting nut of regulating spindle, and the suit on the regulating spindle, and elasticity support tightly in the elasticity top on first wheel body and second wheel body and push away the piece, when making the spiro union at the epaxial adjusting nut screw in of regulating spindle or screw out, the size of cave nest is adjustable, thereby realize the regulation of seeding volume, and have better practicality.

(2) The guide limiting bulges and the guide grooves are arranged, so that the adjusting shaft can be conveniently installed, the inserting and limiting of the adjusting shaft and the seed sowing wheel can be realized, and the adjusting shaft and the seed sowing wheel can synchronously rotate.

(3) The one end of regulating spindle is provided with the limiting plate to in with first wheel body butt, the footpath section of setting and overhanging in the mounting hole of second wheel body, so that the regulating spindle is connected with the second wheel body, and be convenient for adjusting nut's installation.

(4) The pivot hole formed by the axle center of the adjusting shaft is in a regular polygon shape so as to be matched with the driving shaft to realize synchronous rotation with the driving shaft.

(5) The spring has better elastic force, is widely applied, is convenient for material taking, and is simultaneously beneficial to matching with the adjusting nut so as to realize the stability of the size-adjusted pit.

Another object of the present invention is to provide a seed sowing device, which comprises a seed sowing device casing, wherein the seed sowing device casing accommodates therein a seed sowing wheel assembly capable of adjusting the seeding amount, and a seed cleaning brush is provided in the seed sowing device casing and rotates in the same direction as the seed sowing wheel, wherein the brush hair of the seed cleaning brush is adhered to the outer peripheral surface of the seed sowing wheel.

Furthermore, the cavities are formed in two rows on the first wheel body and the second wheel body after the first wheel body and the second wheel body are inserted, the two rows are arranged at intervals, corresponding to the two rows of cavities, and partition plates are constructed on the shell of the seed sowing device.

Furthermore, a driving component capable of driving the seed sowing wheel and the seed cleaning brush to synchronously rotate is arranged on the seed sowing device shell.

Furthermore, the driving assembly comprises a driving shaft arranged on the seeding unit shell and used for the seeding wheel to pivot and a driven shaft used for the seed cleaning brush to pivot, chain wheels are respectively sleeved on the driving shaft and the driven shaft, and chains are wound on the two chain wheels.

Furthermore, the cross sections of the driving shaft and the driven shaft are in a regular polygon shape.

The utility model discloses a seed metering ware is through adopting the seed metering wheel subassembly of above adjustable seeding volume, through the cooperation of the synchronous pivoted of seed clearing brush and seed metering wheel, the seed volume of whereabouts in the seed metering ware is followed in further improvement, also has the function that can realize the seeding volume and adjust simultaneously to can improve the precision of seeding, and have better practicality.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a seed sowing wheel assembly capable of adjusting a seeding rate according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of the first wheel body according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of the second wheel body according to a first embodiment of the present invention;

fig. 4 is a schematic structural view illustrating an assembled state of the adjusting shaft and the second wheel body according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of an adjusting shaft according to a first embodiment of the present invention;

FIG. 6 is a schematic structural view of a seed metering device according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a seed metering device without a seed guiding groove according to a second embodiment of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective;

fig. 9 is a schematic structural view of an assembled state of the driving shaft and the adjusting shaft according to the second embodiment of the present invention;

description of reference numerals:

1-mounting seat, 2-seeding unit shell, 3-driving shaft, 4-driven shaft, 5-first wheel body, 6-second wheel body, 7-adjusting nut, 8-cleaning brush, 9-seed guiding groove and 10-cave nest;

11-furrow opener mounting hole, 12-frame connecting hole, 23-baffle plate, 31-adjusting shaft, 311-limiting plate, 312-journal section, 313-pivot hole, 314-guide groove, 32-elastic pushing piece, 34-chain, 341-chain wheel, 51-long cavity, 52-short cavity, 53-guide limiting projection, 61-long convex column, 62-short convex column and 63-baffle.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The present embodiment relates to a seed sowing wheel assembly capable of adjusting the seeding amount, which is pivotally arranged in a seed sowing device shell, and the main structure of the seed sowing wheel assembly comprises a seed sowing wheel, an adjusting shaft, an elastic pushing piece and an adjusting nut, wherein a pit capable of accommodating seeds is formed on the seed sowing wheel, and the size of the pit can be changed by screwing in or screwing out the adjusting nut on the adjusting shaft, so that the seeding amount is adjusted.

Based on the above design concept, an exemplary structure of the present embodiment is shown in fig. 1, in which the seed discharging wheel includes a first wheel body 5 and a second wheel body 6 that are coaxially arranged, a plurality of cavities that are arranged along a circumferential direction of the first wheel body 5 and are alternately distributed at intervals are configured on an outer circumferential surface of the first wheel body 5, each cavity is arranged along an axial direction of the first wheel body 5 and is alternately distributed at intervals, a plurality of convex columns that are alternately distributed at intervals are formed on an outer circumferential surface of the second wheel body 6 corresponding to each cavity, so that each convex column is placed into the corresponding cavity to form a pocket 10 for accommodating seeds, that is, the size of the pocket 10 is adjustable by adjusting an insertion length of the second wheel body 6 relative to the first wheel body 5.

In a specific structure, as shown in fig. 1 with reference to fig. 2 and 3, a plurality of long cavities 51 and short cavities 52 are configured on the outer circumferential surface of the first wheel body 5 in an annular array along the circumferential direction of the first wheel body 5, the long cavities 51 and the short cavities 52 are both arranged along the radial extension of the first wheel body 5 and alternately distributed at intervals, and the ends of the long cavities 51 and the short cavities 52 are both in a concave spherical shape. A plurality of long convex columns 61 and a plurality of short convex columns 62 which are alternately distributed at intervals are correspondingly formed on the outer circumferential surface of the second wheel body 6, and the end parts of the long convex columns 61 and the short convex columns 62 are concave spherical, so that the long convex columns 61 and the short convex columns 62 are correspondingly placed into the short cavity 52 and the long cavity 51 to form cavities 10 for accommodating seeds. That is, the pockets 10 in the present embodiment are formed in two rows at intervals in the circumferential direction of the first wheel body 5 and the second wheel body 6 after the first wheel body 5 and the second wheel body 6 are inserted.

It should be noted that the number of rows of pockets 10 may be other than two as described in the above-mentioned structure, such as one, three, four or other rows, and only differs in the ease of manufacture of the first wheel body 5 and the second wheel body 6. In consideration of the seeding efficiency and the processing difficulty of the first wheel 5 and the second wheel 6, the number of the cavities 10 formed in the present embodiment is preferably two.

In addition, in order to realize the pivoting of the first wheel body 5 and the second wheel body 6 on the seeding unit shell 2, mounting holes which are arranged on the first wheel body 5 and the second wheel body 6 in a penetrating way along the axial direction of the seeding wheel and can be used for the seeding wheel to be pivoted on the seeding unit shell 2 are formed on the first wheel body 5 and the second wheel body 6. In order to achieve the synchronous rotation of the seed wheel and the below-mentioned adjusting shaft 31, in the present embodiment, a guiding limit protrusion 53 is formed in the mounting hole of the first wheel body 5, and a guiding groove 314 is formed on the adjusting shaft 31 corresponding to the guiding limit protrusion 53. The relative rotation between the seed wheel and the adjusting shaft 31 can be prevented by the cooperation of the guide limit projection 53 and the guide groove 314, so that the seed wheel and the adjusting shaft 31 rotate synchronously.

As shown in fig. 1 and fig. 4 and fig. 5, the adjusting shaft 31 of the present embodiment is fixed between the first wheel 5 and the second wheel 6 in a limited manner, and has an outward extending section that passes through the mounting hole of the second wheel 6 and is exposed, and the adjusting nut 7 is screwed on the outward extending section. In a specific structure, as shown in fig. 5, the adjusting shaft 31 has a limiting plate 311 capable of abutting against the first wheel 5, and a shaft diameter section connected to one side of the limiting plate 311, wherein a tail end of the shaft diameter section forms an overhanging section, and a thread is formed on the overhanging section to facilitate the screwing of the adjusting nut 7. In addition, a guide groove 314 is formed on the outer peripheral surface of the shaft diameter section so as to be inserted and fitted with the guide limit projection 53 in the mounting hole. In addition, a pivot hole 313 with a regular polygonal cross section is formed at the axial center of the adjusting shaft 31, and the pivot hole 313 in the present embodiment is preferably a regular hexagon so as to facilitate the insertion connection with a driving shaft 3 with a regular hexagon cross section, which will be described below, and thereby the adjusting shaft 31 and the driving shaft 3 can synchronously rotate.

The elastic pushing member 32 of this embodiment is sleeved on the adjusting shaft 31 and elastically abuts against the first wheel body 5 and the second wheel body 6. As shown in fig. 1 and 4, one end of the elastic pushing member 32 abuts against the limiting plate 311 on the adjusting shaft 31, and the other end abuts against the second wheel 6, so that the size of the socket 10 can be adjusted by screwing or unscrewing the adjusting nut 7 on the adjusting shaft 31. In this embodiment, in view of the advantages of the spring having a better elastic force, a wide application range and easy material selection, the elastic pushing member 32 of this embodiment is preferably a spring, and is also beneficial to matching with the adjusting nut 7 to realize the stability of the size of the cavity 10 after adjustment.

The utility model discloses a seed metering wheel subassembly of adjustable seeding volume, the cave 10 that can hold the seed that constitutes through the cartridge cooperation of die cavity and projection that length differs on first wheel body 5 and the second wheel body 6, and the regulating spindle 31 and the spiro union that set up at the terminal adjusting nut 7 of regulating spindle 31, and the suit is on the regulating spindle 31, and elasticity supports tightly in elasticity top pushing part 32 on first wheel body 5 and second wheel body 6, make adjusting nut 7 of spiro union on regulating spindle 31 when the screw in or screw out, the size of cave 10 is adjustable, thereby realize the regulation of seeding volume, and have better practicality.

Example two

The present embodiment relates to a seed sowing device, one exemplary structure of which is shown in fig. 6 to 8, the seed sowing device comprises a seed sowing device shell 2, a seed sowing wheel assembly capable of adjusting the seeding amount as described in the first embodiment is accommodated in the seed sowing device shell 2, a seed cleaning brush 8 rotating in the same direction with the seed sowing wheel is arranged in the seed sowing device shell 2, and bristles of the seed cleaning brush 8 are attached to the outer peripheral surface of the seed sowing wheel.

Corresponding to the two rows of the nests 10 on the seed sowing wheel in the first embodiment, the partition plate is configured on the seed sowing device shell 2 to form different seed sowing grooves, and of course, a baffle plate for blocking seeds in the seed box from falling into the seed sowing grooves can be additionally arranged above the partition plate, so that the sowing of a single row of the nests 10 can be realized, and the sowing row spacing can be increased. Of course, the two rows of nests 10 provided in this embodiment not only can realize the increase of the planting distance, but also can be alternatively matched with the two seed baffle plates 23 in the seed guide groove 9, that is, the seed baffle plates 23 in the seed guide groove 9 can be opened and closed by the rotation of the seed metering wheel, so that after the seeds fall above the seed baffle plates 23, the two seed baffle plates 23 are intermittently opened due to the rotation of the seed metering wheel to realize the secondary seed feeding of the seeds.

It should be noted that, the cross section of the seed guiding groove 9 in this embodiment is "U" shaped, as shown in fig. 6, a partition plate is disposed in the middle of the seed guiding groove 9 to form two channels corresponding to two rows of cavities 10, and as the seeds have a certain speed in the process of falling into the seed groove through the through holes and collide with the side wall of the seed guiding groove 9 to a certain extent, in order to make the seeds slowly fall into the seed baffle plate 23 in the falling process of the seeds, an auxiliary baffle plate is configured on the seed guiding groove 9 to reduce the speed in the falling process of the seeds and prevent the seeds from splashing around, so that the seeds can accurately fall into the upper side of the seed baffle plate 23 to improve the sowing precision.

The seed metering device shell 2 of the embodiment is screwed on the mounting base 1, and the mounting base 1 is provided with a furrow opener mounting hole 11 and a frame connecting hole 12, so that the mounting base 1 is conveniently connected with a furrow opener and a frame of a seeding machine. In addition, a driving component capable of driving the seed sowing wheel and the seed cleaning brush 8 to synchronously rotate is arranged on the seed sowing device shell 2. Specifically, as shown in fig. 8 and fig. 9, the driving assembly includes a driving shaft 3 provided on the seed metering device housing 2 for pivoting the seed metering wheel, and a driven shaft 4 provided for pivoting the seed cleaning brush 8, wherein chain wheels 341 are respectively sleeved on the driving shaft 3 and the driven shaft 4, and a chain 34 is wound on the two chain wheels 341.

The seed metering ware of this embodiment is at the during operation, rotate through outside driver drive action wheel, thereby it rotates from the driving wheel to drive, make the seed in the cave 10 under the effect of scraping of planting brush 8, make a certain amount of seed sowed to the kind ditch in, in addition, precession or screw-out through adjusting nut 7, with the size of adjustable cave 10, thereby change the quantity of the seed that holds in the cave 10, and then realize the regulation of seeding volume, and improve the precision of seeding.

In addition, it should be noted that the cross sections of the driving shaft 3 and the driven shaft 4 in this embodiment are regular polygons, so that when the driving shaft 3 is connected and matched with the first wheel body 5 and the adjusting shaft 31, the driving shaft 3 can synchronously rotate with the first wheel body 5 and the adjusting shaft 31, and simultaneously when the driven shaft 4 is connected and matched with the seed cleaning brush 8, the driven shaft 4 can synchronously rotate with the seed cleaning brush 8. Of course, besides the structural matching, the connecting synchronous rotation can be realized by matching a key with a key groove on a shaft with a circular cross section.

Besides the above-mentioned structure of the chain 34 and the chain wheel 341, the driving assembly can also realize the synchronous rotation of the seed sowing wheel and the seed cleaning brush 8 through other structures in the prior art, such as driving the driving shaft 3 to rotate through a gear or a belt, so as to drive the driven shaft 4 to rotate synchronously with the driving shaft 3. Of course, when a gear structure is adopted, an intermediate gear and an intermediate shaft need to be arranged, and the structure is complex.

The seed metering device of this embodiment is through the adjustable seeding rate's of using embodiment one seed metering wheel subassembly, through the cooperation of clearing seed brush 8 and the synchronous pivoted of seed metering wheel, further improvement from the seed metering device seed volume of whereabouts, also has the function that can realize the seeding rate and adjust simultaneously to can improve the precision of seeding, have better practicality simultaneously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A seeding wheel assembly capable of adjusting seeding quantity is pivoted in a seeding device shell (2) and is characterized by comprising,

the seed metering wheel comprises a first wheel body (5) and a second wheel body (6) which are coaxially arranged, a plurality of cavities which are circumferentially arranged around the first wheel body (5) and alternately distributed at intervals are formed in the outer circumferential surface of the first wheel body (5), each cavity extends along the axial direction of the first wheel body (5), a plurality of convex columns which are alternately distributed at intervals and have different lengths are formed on the outer circumferential surface of the second wheel body (6) corresponding to each cavity, and cavities (10) for containing seeds are formed by placing the convex columns into the corresponding cavities;

the adjusting shaft (31) is fixed between the first wheel body (5) and the second wheel body (6) in a limiting manner, an elastic pushing piece (32) which can elastically abut against the first wheel body (5) and the second wheel body (6) is sleeved on the adjusting shaft (31), the adjusting shaft (31) is provided with an outward extending section which penetrates through a mounting hole of the second wheel body (6) and is exposed, an adjusting nut (7) is screwed on the outward extending section, and the adjusting nut (7) is screwed in or out of the adjusting shaft (31) to form adjustment of the size of the cave (10).

2. An adjustable seed metering wheel assembly as set forth in claim 1 wherein: mounting holes which are arranged along the axial direction of the seed metering wheel in a penetrating way and are used for the seed metering wheel to be pivoted on the seed metering device shell (2) are formed on the first wheel body (5) and the second wheel body (6), a guide limiting bulge (53) is formed in the mounting hole on the first wheel body (5), and a guide groove (314) is formed on the adjusting shaft (31) corresponding to the guide limiting bulge (53).

3. An adjustable seed metering wheel assembly as set forth in claim 1 wherein: the adjusting shaft (31) is provided with a limiting plate (311) which is abutted to the first wheel body (5) and a journal section (312) which is connected to one side of the limiting plate (311), and the tail end of the journal section (312) forms the overhanging section.

4. An adjustable seed metering wheel assembly as set forth in claim 1 wherein: a pivot hole (313) with a regular polygonal cross section is formed on the axis of the adjusting shaft (31).

5. An adjustable seed metering wheel assembly as set forth in claim 1 wherein: the elastic pushing piece (32) is a spring.

6. A seed meter comprising a seed meter housing (2), characterized in that: a seed sowing wheel assembly capable of adjusting the seeding amount according to any one of claims 1 to 5 is accommodated in the seed sowing device housing (2), a seed cleaning brush (8) rotating in the same direction as the seed sowing wheel is arranged in the seed sowing device housing (2), and the brush hair of the seed cleaning brush (8) is attached to the outer peripheral surface of the seed sowing wheel.

7. The seed meter of claim 6, wherein: the cavities (10) are formed in two rows on the first wheel body (5) and the second wheel body (6) after the first wheel body (5) and the second wheel body (6) are inserted, the two rows are arranged at intervals, corresponding to the two rows of cavities (10), and partition plates are constructed on the seed sowing device shell (2).

8. The seed meter of claim 7, wherein: the seed metering device shell (2) is provided with a driving component which can drive the seed metering wheel and the seed cleaning brush (8) to synchronously rotate.

9. The seed meter of claim 8, wherein: the driving assembly comprises a driving shaft (3) which is arranged on the seed metering device shell (2) and used for driving the seed metering wheel to pivot, and a driven shaft (4) which is used for driving the seed cleaning brush (8) to pivot, chain wheels (341) are respectively sleeved on the driving shaft (3) and the driven shaft (4), and chains (34) are wound on the two chain wheels (341).

10. The seed meter of claim 9, wherein: the cross sections of the driving shaft (3) and the driven shaft (4) are regular polygons.