CN211964947U

CN211964947U - Agricultural seed classified screening device

Info

Publication number: CN211964947U
Application number: CN202020004091.7U
Authority: CN
Inventors: 吴春华; 黄清茹; 张晓敏; 谢新宇; 郝品
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-11-20
Anticipated expiration: 2030-01-02

Abstract

The utility model discloses an agricultural seed grading screening device, which comprises a screening box, wherein the upper end and the lower end of the screening box are respectively provided with a feed inlet and a feed outlet, a primary screening component and a secondary screening component are arranged in the screening box from top to bottom, and a material guiding plate is fixedly arranged between the primary screening component and the secondary screening component; through multistage screening, screen the seed according to the quality and classify, improved the practicality.

Description

Agricultural seed classified screening device

Technical Field

The utility model relates to the field of agricultural machinery, specifically an agricultural seed classified screening device.

Background

Agricultural seeds refer to plant organs which can be directly applied to sowing in agricultural production, so-called agricultural seeds refer to plant organs which can be directly applied to sowing in agricultural production and are distinguished from seeds in botany, the agricultural seeds are called as agricultural seeds, under the strong support of China for agriculture, the seed processing industry in China has been developed rapidly in recent years, the seed market is continuously expanded, the requirement on the fine processing of the seed processing industry is higher and higher, particularly, the higher requirement on the physical processing performance of the seeds is provided, in the deep processing process of the seeds, the seeds must be classified according to the shapes and the appearance characteristics of the seeds, the seeds with the same shape and size are better used, and at this time, a screening device is needed.

But current seed sieving mechanism filters the effect poor, can not effectively carry out quality classification to the seed, and wastes time and energy, is not convenient for use widely.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an agricultural seed classified screening device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an agricultural seed grading screening device comprises a screening box, wherein a feed inlet and a feed outlet are respectively formed in the upper end and the lower end of the screening box, a primary screening assembly and a secondary screening assembly are arranged in the screening box from top to bottom, and a guide plate is fixedly arranged between the primary screening assembly and the secondary screening assembly;

the first-stage screening assembly comprises a filter plate, a rotating shaft, an incomplete gear, a second telescopic rod, a rack and a sliding groove, the sliding groove is fixedly formed in two side walls of the screening box, two ends of the filter plate are slidably mounted in the sliding groove, the lower surface of the filter plate is in contact connection with the movable end of the second telescopic rod, the rack is arranged on the side wall of the movable end of the second telescopic rod, the incomplete gear is fixedly mounted on the rotating shaft and is meshed with the rack, the rotating shaft is rotatably mounted in the screening box through a shaft seat, and one end of the;

second grade screening subassembly includes screening frame, connecting piece, first screening passageway, second screening board, first screening board and push rod, and the screening frame passes through connecting piece movable mounting at the screening incasement, and first screening board and second screening board from last down install in the screening frame and all incline the setting, and first screening passageway one end is run through the screening frame and is connected in first screening board bottom, and the other end runs through the screening case and extends to the outside, and second screening passageway one end is run through the screening frame and is connected in second screening board bottom, and the other end runs through the screening case and extends to the outside, push rod one end and screening frame fixed connection, and the other end is connected with drive arrangement, the sieve mesh of first screening board is greater than the sieve mesh of second screening board.

As a further aspect of the present invention: the connecting piece is first telescopic link, and the peripheral cover is equipped with the spring, and screening incasement wall and screening frame outer wall are connected respectively at first telescopic link both ends.

As a further aspect of the present invention: and a return spring is arranged between the top end of the sliding groove and the upper surface of the filter plate.

As a further aspect of the present invention: the driving device comprises a cam, a driving shaft, a first helical gear, a second helical gear, a mounting plate and a motor, wherein the mounting plate is welded on the outer wall of the screening box, the motor is fixedly mounted on the mounting plate, the output end of the motor is connected with the driving shaft, the cam and the first helical gear are fixedly mounted on the driving shaft, the cam is in contact connection with a push rod, the first helical gear is in meshed connection with the second helical gear, and the second helical gear is fixedly mounted on the rotating shaft.

As a further aspect of the present invention: the bottom of the screening box is provided with a baffle.

Compared with the prior art, the beneficial effects of the utility model are that:

a driving device is arranged, so that the filter plate vibrates up and down in the chute, primary screening is carried out on seeds, and large-scale magazines doped in the seeds and large-size seeds which do not meet the standard are left on the filter plate; the first screening plate screens the secondary seeds, the seeds left on the first screening plate are discharged from the first screening channel and collected outside, and the seeds are high-quality full seeds; the second screening plate continues to screen, seeds left on the second screening plate are discharged from the second screening channel and collected outside, the seeds are common seeds, and finally the seeds falling from the second screening plate are discharged and collected from the discharging port, and the seeds are low-quality and poor-quality seeds; through multistage screening, screen the seed according to the quality and classify, improved the practicality.

Drawings

FIG. 1 is a schematic structural diagram of an agricultural seed classifying and screening device.

Fig. 2 is a matching diagram of an incomplete gear and a rack in the agricultural seed grading and screening device.

FIG. 3 is a schematic structural diagram of a screening frame in the agricultural seed grading screening device.

In the figure: 1-screening box, 2-feeding port, 3-filtering plate, 4-baffle, 5-blanking port, 6-screening frame, 7-connecting piece, 8-first screening channel, 9-second screening channel, 10-second screening plate, 11-first screening plate, 12-push rod, 13-cam, 14-driving shaft, 15-first helical gear, 16-second helical gear, 17-mounting plate, 18-motor, 19-reset spring, 20-second telescopic rod, 21-rotating shaft, 22-incomplete gear, 23-rack, 24-guide plate and 25-sliding chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, in the embodiment of the present invention, an agricultural seed classifying and screening device, a screening box 1, a feeding port 2 and a discharging port 5 are respectively disposed at the upper end and the lower end of the screening box 1, a primary screening component and a secondary screening component are disposed in the screening box 1 from top to bottom, and a material guiding plate 24 is fixedly installed between the primary screening component and the secondary screening component;

the specific type of the first-stage screening assembly is not limited, in the embodiment, preferably, the first-stage screening assembly comprises a filter plate 3, a rotating shaft 21, an incomplete gear 22, a second telescopic rod 20, a rack 23 and a sliding groove 25, wherein the sliding groove 25 is fixedly formed in two side walls of the screening box 1, two ends of the filter plate 3 are slidably mounted in the sliding groove 25, the lower surface of the filter plate 3 is in contact connection with the movable end of the second telescopic rod 20, the rack 23 is arranged on the side wall of the movable end of the second telescopic rod 20, the incomplete gear 22 is fixedly mounted on the rotating shaft 21 and is meshed with the rack 23, the rotating shaft 21 is rotatably mounted in the screening box 1 through a shaft seat, and;

the specific type of the secondary screening component is not limited, in this embodiment, preferably, the secondary screening component includes a screening frame 6, a connecting member 7, a first screening channel 8, a second screening channel 9, a second screening plate 10, a first screening plate 11 and a push rod 12, the screening frame 6 is movably installed in the screening box 1 through the connecting member 7, the first screening plate 11 and the second screening plate 10 are installed in the screening frame 6 from top to bottom and are both obliquely arranged, one end of the first screening channel 8 penetrates through the screening frame 6 and is connected to the lowest end of the first screening plate 11, and the other end extends to the outside through the screening box 1, one end of the second screening channel 9 passes through the screening frame 6 and is connected with the lowest end of the second screening plate 10, and the other end extends to the outside through the screening box 1, one end of the push rod 12 is fixedly connected with the screening frame 6, and the other end is connected with a driving device, and the sieve pores of the first screening plate 11 are larger than the sieve pores of the second screening plate 10.

When screening seeds, a driving device is started, seeds are added from a feeding hole 2 and fall on a filter plate 3, the driving device drives a rotating shaft 21 to rotate, further, the filter plate 3 vibrates up and down in a sliding groove 25 through intermittent matching of an incomplete gear 22 and a rack 23, primary screening is carried out on the seeds, large-scale magazines doped in the seeds and large-size seeds which do not meet the standard are left on the filter plate 3, the seeds falling from the filter plate 3 fall into a screening frame 6 under the guide of a material guiding plate 24, the screening frame 6 shakes left and right under the drive of the driving device, the first screening plate 11 screens the seeds, the seeds left on the first screening plate 11 are discharged from a first screening channel 8 and are collected outside, and the seeds are high-quality full seeds; the seeds falling from the first screening plate 11 continue to be screened on the second screening plate 10, the seeds left on the second screening plate 10 are discharged from the second screening channel 9 and collected outside, the seeds are ordinary seeds, and the seeds falling from the second screening plate 10 are discharged and collected from the discharging port 5, and the seeds are low-quality and poor-quality seeds.

It should be noted that, the purity of the high-quality seeds needs to be improved, and the seeds in the first screening channel 8 can be added from the feeding hole 2 and screened again to improve the precision.

The concrete type of connecting piece 7 does not add the restriction, and in this embodiment, preferred, connecting piece 7 is first telescopic link, and the peripheral cover is equipped with the spring, and screening case 1 inner wall and the 6 outer walls of screening frame are connected respectively to first telescopic link both ends.

In order to improve the vibrations effect of filter 3, install reset spring 19 between spout 25 top and the 3 upper surfaces of filter for 3 vibrations of filter are more stable through setting up reset spring 19, improve the screening effect.

The specific type of the driving device is not limited, in this embodiment, preferably, the driving device includes a cam 13, a driving shaft 14, a first bevel gear 15, a second bevel gear 16, a mounting plate 17 and a motor 18, the mounting plate 17 is welded on the outer wall of the screening box 1, the motor 18 is fixedly mounted on the mounting plate 17, the output end of the motor is connected to the driving shaft 14, the cam 13 and the first bevel gear 15 are fixedly mounted on the driving shaft 14, the cam 13 is in contact connection with the push rod 12, the first bevel gear 15 is in engagement connection with the second bevel gear 16, and the second bevel gear 16 is fixedly mounted on the rotating shaft 21.

The utility model discloses a theory of operation is:

when screening seeds, a motor 18 is started, seeds are added from a feeding hole 2 and fall on a filter plate 3, the motor 18 drives a rotating shaft 21 to rotate through the matching of a driving shaft 14 and a gear set, further, the filter plate 3 vibrates up and down in a sliding groove 25 through the intermittent matching of an incomplete gear 22 and a rack 23, primary screening is carried out on the seeds, large-sized magazines doped in the seeds and large-sized seeds which do not meet the standard are left on the filter plate 3, the seeds falling from the filter plate 3 fall into a screening frame 6 under the guide of a material guiding plate 24, the screening frame 6 is driven by a push rod 12 to shake left and right, the first screening plate 11 screens the seeds, the seeds left on the first screening plate 11 are discharged from a first screening channel 8 and are collected outside, and the seeds are high-quality full seeds; the seeds falling from the first screening plate 11 continue to be screened on the second screening plate 10, the seeds left on the second screening plate 10 are discharged from the second screening channel 9 and collected outside, the seeds are ordinary seeds, and the seeds falling from the second screening plate 10 are discharged and collected from the discharging port 5, and the seeds are low-quality and poor-quality seeds.

Example 2

In order to better discharge the low-quality seeds, the present embodiment is further improved on the basis of embodiment 1, and the improvement is that: screening case 1 bottom is provided with baffle 4, the seed of being convenient for is discharged.

In conclusion, the driving device is arranged, so that the filter plate 3 vibrates up and down in the chute 25, primary screening is carried out on seeds, and large-sized magazines doped in the seeds and large-sized seeds which do not meet the standard are left on the filter plate 3; the first screening plate 11 screens the secondary seeds, the seeds left on the first screening plate 11 are discharged from the first screening channel 8 and collected outside, and the seeds are high-quality full seeds; the second screening plate 10 continues to screen, the seeds left on the second screening plate 10 are discharged from the second screening channel 9 and collected outside, the seeds are common seeds, and finally the seeds falling from the second screening plate 10 are discharged from the feed opening 5 and collected, and the seeds are low-quality and poor-quality seeds; through multistage screening, screen the seed according to the quality and classify, improved the practicality.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An agricultural seed grading screening device comprises a screening box (1), wherein the upper end and the lower end of the screening box (1) are respectively provided with a feed inlet (2) and a feed outlet (5), and the agricultural seed grading screening device is characterized in that a first-stage screening component and a second-stage screening component are arranged in the screening box (1) from top to bottom, and a material guiding plate (24) is fixedly arranged between the first-stage screening component and the second-stage screening component;

the first-stage screening assembly comprises a filter plate (3), a rotating shaft (21), an incomplete gear (22), a second telescopic rod (20), a rack (23) and a sliding groove (25), the sliding groove (25) is fixedly formed in two side walls of the screening box (1), two ends of the filter plate (3) are slidably mounted in the sliding groove (25), the lower surface of the filter plate (3) is in contact connection with the movable end of the second telescopic rod (20), the rack (23) is arranged on the side wall of the movable end of the second telescopic rod (20), the incomplete gear (22) is fixedly mounted on the rotating shaft (21) and is meshed with the rack (23), the rotating shaft (21) is rotatably mounted in the screening box (1) through a shaft seat, and one end of the rotating shaft penetrates through the screening box (1;

the second-level screening assembly comprises a screening frame (6), a connecting piece (7), a first screening channel (8), a second screening channel (9), a second screening plate (10), a first screening plate (11) and a push rod (12), wherein the screening frame (6) is movably arranged in a screening box (1) through the connecting piece (7), the first screening plate (11) and the second screening plate (10) are arranged in the screening frame (6) from top to bottom in an inclined mode, one end of the first screening channel (8) penetrates through the screening frame (6) and is connected to the lowest end of the first screening plate (11), the other end of the first screening channel penetrates through the screening box (1) and extends to the outside, one end of the second screening channel (9) penetrates through the screening frame (6) and is connected to the lowest end of the second screening plate (10), the other end of the second screening channel penetrates through the screening box (1) and extends to the outside, one end of the push rod (12) is fixedly connected with the screening frame (6), and the, the mesh of the first sieve plate (11) is larger than the mesh of the second sieve plate (10).

2. The agricultural seed grading and screening device according to claim 1, wherein the connecting member (7) is a first telescopic rod, a spring is sleeved on the periphery of the connecting member, and two ends of the first telescopic rod are respectively connected with the inner wall of the screening box (1) and the outer wall of the screening frame (6).

3. Agricultural seed classifying and screening apparatus according to claim 1, characterized in that a return spring (19) is installed between the top end of the chute (25) and the upper surface of the filter plate (3).

4. The agricultural seed grading and screening device according to claim 1, characterized in that the driving device comprises a cam (13), a driving shaft (14), a first bevel gear (15), a second bevel gear (16), a mounting plate (17) and a motor (18), wherein the mounting plate (17) is welded on the outer wall of the screening box (1), the motor (18) is fixedly mounted on the mounting plate (17), the output end of the motor is connected with the driving shaft (14), the cam (13) and the first bevel gear (15) are fixedly mounted on the driving shaft (14), the cam (13) is in contact connection with a push rod (12), the first bevel gear (15) is in meshing connection with the second bevel gear (16), and the second bevel gear (16) is fixedly mounted on a rotating shaft (21).

5. Agricultural seed classifying screen device according to any one of claims 1-4, characterized in that the bottom of the screen box (1) is provided with a baffle (4).