CN212092743U - Based on three gardens of wheat sieving mechanism for field seed - Google Patents

Abstract

The utility model provides a screening device for wheat seeds in three fields, comprising a box body, a seed feeding hopper, and the seed feeding hopper is arranged on the top of the box body; a first filter screen, the first filter screen It is laterally arranged on the upper part of the inner cavity of the box, and the first filter screen is inclined downward from the front end to the rear end. The utility model provides a screening device for wheat seeds in three fields, by setting a first filter screen and a second filter screen with decreasing pore size, to screen out the impurities with larger particles and smaller particles but similar in weight to the plump seeds, respectively. , by washing with water, light-weight sundries such as shriveled seeds, empty shells, grass blades, etc. in the seeds are floated, and three-step screening is carried out by particle size and weight to separate out various weight and particle size unqualified sundries, inferior Only the seeds with full grains and uniform weight are left, the screening effect is better, the yield of the seeds is effectively improved, and the influence of the quality of the wheat seeds on the yield is reduced.

Description

A screening device based on wheat three-field seeds

technical field

The utility model relates to the technical field of agricultural seed selection, in particular to a screening device based on wheat three-field seeds.

Background technique

Wheat is the collective name of wheat plants, is a monocotyledonous plant, is a kind of grass plant widely grown all over the world, the caryopsis of wheat is one of the staple foods of human beings, and can be made into bread, steamed bread, biscuits, noodles after being ground into flour. After fermentation, it can be made into beer, alcohol, liquor (such as vodka), or biomass fuel. Wheat is rich in starch, protein, fat, minerals, calcium, iron, thiamine, riboflavin, niacin, Vitamin A and Vitamin C.

Wheat "three gardens" refers to the wheat panicle garden, panicle line garden and original seed garden. At present, the three-year three-yard system is generally adopted to supply wheat field production. Through the construction of wheat "three fields", the excellent characters of the existing wheat varieties will be maintained, and the promotion of improved wheat varieties will be accelerated, so as to achieve the purpose of high yield and income.

The variety of wheat is an important factor in the yield of wheat. In order to ensure the goodness of the wheat variety, the seeds of wheat need to be screened before planting to remove small grains, broken grains, grass seeds and sand and other debris, so that the seeds used for sowing are full. , the size is neat and uniform, and the yield of wheat seeds is improved. The existing screening devices generally screen the wheat seeds simply through the vibration of the screen, which cannot accurately separate the damaged seeds such as broken grains and empty shells, and the screening effect is not good.

Therefore, it is necessary to provide a new screening device for wheat three-field seeds to solve the above-mentioned technical problems.

SUMMARY OF THE INVENTION

The utility model provides a screening device for wheat seeds in three fields, which solves the technical problem that the existing wheat seed screening device simply screens the wheat seeds by mesh vibration, and cannot accurately separate the damaged seeds such as broken grains and empty shells. , the filtering effect is not good.

In order to solve the above-mentioned technical problems, the utility model provides a screening device for wheat seeds in three fields, including a box body and a seed feeding hopper, and the seed feeding hopper is arranged on the top of the box body; The first filter screen is horizontally arranged on the upper part of the inner cavity of the box, and the first filter screen is inclined downward from the front end to the rear end; the second filter screen is arranged horizontally in the box inner cavity. The lower part of the box, the second filter screen is inclined downward from the rear end to the front end; the scraper is arranged between the two sides of the inner wall of the box, and the scraper can move along the second filter screen a motor, the motor is arranged outside the box body; a stirring shaft, the stirring shaft is laterally arranged in the inner cavity of the box body, and one end of the stirring shaft is fixed with the output shaft of the motor connected, the stirring shaft is located between the first filter screen and the second filter screen, and the stirring shaft is provided with stirring blades along its radial direction; the support rod is laterally arranged on the box Between two ends of the inner wall, the support rod is located below the first filter screen; a sliding sleeve, the sliding sleeve is sleeved on the surface of the support rod, and the sliding sleeve can be along the length of the support rod direction sliding; screen frame, the screen frame is detachably arranged at the bottom of the sliding sleeve, one side of the screen frame is an opening; pull rod, one end of the pull rod is fixed on the top of the sliding sleeve, the The other end of the tie rod can be pulled through to the outside of one end of the box body; the water inlet pipe is opened on the side wall of the box body and located below the first filter screen.

Preferably, a dismounting port for dismounting the screen frame is provided on the side wall of the box body, and the dismounting port is located on one side of the opening of the screen frame.

Preferably, a slag outlet is provided on the side wall of the box at the rear end of the first filter screen.

Preferably, a seed outlet is provided on the side wall of the box at the front end of the second filter screen, and a downwardly inclined seed outlet is connected to the seed outlet.

Preferably, a long rod is fixedly connected to the front side of the scraper, the inclination angle of the long rod is the same as the inclination angle of the second filter screen, and one end of the long rod can pass through the seed pipe to the outside of the box.

Preferably, a conical bucket is arranged at the bottom of the inner cavity of the box, and an outlet is arranged at the bottom of the conical bucket.

Compared with the related art, the screening device based on wheat three-field seeds provided by the present utility model has the following beneficial effects:

The utility model provides a screening device for seeds in three fields of wheat. By arranging a first filter screen and a second filter screen with decreasing pore size, sand, gravel, grass leaves, etc. Sand and other debris with similar weight of seeds are screened out separately, and then washed with water, so that light debris such as shriveled seeds, hollow shells, grass blades and other debris in the seeds float on the water surface, and are separated from the full seeds. The seeds are further sorted and screened in three steps by particle size and weight to separate out various unqualified sundries and inferior seeds, leaving only seeds with full particles and uniform weight. The screening effect is better and more effective. To improve the yield of seeds and reduce the impact of wheat seed quality on yield.

Description of drawings

Fig. 1 is the structural representation of a kind of preferred embodiment based on wheat three-field seed screening device provided by the utility model;

Fig. 2 is the structural representation of the support rod and the screen frame shown in Fig. 1;

FIG. 3 is a top view of the support rod and the screen frame shown in FIG. 1 .

Labels in the figure: 1. Box, 2. Feeding bucket, 3. First filter, 4. Second filter, 5. Seed outlet, 6. Scraper, 7. Long rod, 8. Motor, 9 , stirring shaft, 10, stirring blade, 11, water inlet pipe, 12, support rod, 13, sliding sleeve, 14, screen frame, 15, tie rod, 16, disassembly port, 17, slag outlet, 18, seed pipe, 19. Exit, 20. Conical bucket.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and embodiments.

Please refer to Fig. 1, Fig. 2 and Fig. 3 in conjunction with Fig. 1, wherein Fig. 1 is a schematic structural diagram of a preferred embodiment based on a screening device for wheat three-field seeds provided by the utility model; Schematic diagram of the structure of the support rod and the screen frame; FIG. 3 is a top view of the support rod and the screen frame shown in FIG. 1 .

Based on the screening device for wheat seeds in three fields, it includes a box body 1, a seed feeding hopper 2, and the seed feeding hopper 1 is arranged on the top of the box body 1; a first filter screen 3, the first filter screen 3 Horizontally arranged on the upper part of the inner cavity of the box body 1, the first filter screen 3 is inclined downward from the front end to the rear end; the second filter screen 4 is horizontally arranged on the box body 1. In the lower part of the inner cavity, the second filter screen 4 is inclined downward from the rear end to the front end.

The aperture of the first filter screen 3 is relatively large, so that the wheat seeds can flow downward normally, and the larger particles of sand, gravel, grass and other debris can be separated. It cannot fall down, only grass seeds, sand and other impurities can flow down, leaving the full wheat seeds on the second filter screen4.

The first filter screen 3 and the second filter screen 4 work together to screen out the sundries with larger particles or smaller particles and similar weight to the plump seeds, leaving only the seeds with plump particles and uniform weight.

There is a slag outlet 17 on the side wall of the box body 1 located at the rear end of the first filter screen 3. After working for a period of time, the slag outlet 17 can be opened to remove the sand, gravel, and sand on the first filter screen 3. Large particles of debris such as grass and leaves are removed to prevent the first filter screen 3 from accumulating too many debris so that the seeds cannot fall. The first filter screen 3 is inclined to facilitate cleaning.

There is a seed outlet 5 on the side wall of the box body 1 located at the front end of the second filter screen 4. The seed outlet 5 is connected with a downwardly inclined seed outlet pipe 18, a scraper 6, and the The scraper 6 is arranged between two sides of the inner wall of the box body 1 , and the scraper 6 can move along the surface of the second filter screen 4 .

A long rod 7 is fixedly connected to the front side of the scraper 6 , and the inclination angle of the long rod 7 is the same as the inclination angle of the second filter screen 4 . One end of the long rod 7 can pass through to the outside of the box body 1 along the seed pipe 18 .

After working for a period of time, a lot of wheat seeds are accumulated on the second filter screen 4. At this time, the seed outlet 5 is opened, and the long rod 7 is pulled out from the seed outlet pipe 18, and the scraper 6 is driven along the inner wall of the box body 1. The surface of the filter screen 4 slides, and the seeds on the surface of the second filter screen 4 are discharged and collected for planting.

The water inlet pipe 11 is opened on the side wall of the box body 1 and located below the first filter screen 3 . The water inlet pipe 11 feeds water into the inner cavity of the box body 1, and a water cavity is formed in the inner cavity of the box body 1. The seeds fall into the water cavity after passing through the first filter screen 3, and the deflated seeds, hollow shells, grass leaves, etc. Because of its light weight, it floats on the water and separates from the full seeds for further sorting.

Washing the seeds before planting will not affect the normal germination of the seeds and will not affect the activity of the seeds.

Motor 8, the motor 8 is arranged outside the box body 1; a stirring shaft 9, the stirring shaft 9 is laterally arranged in the inner cavity of the box body 1, one end of the stirring shaft 9 is connected to the motor 8 The output shaft is fixedly connected, the stirring shaft 9 is located between the first filter screen 3 and the second filter screen 4, and a stirring blade 10 is arranged on the stirring shaft 9 along its radial direction.

The motor 8 drives the stirring shaft 9 to rotate and drives the stirring blades 10 to rotate, and when the seeds fall into the water, the seeds and the water are stirred, so that the deflated seeds, hollow shells, grass blades, etc. mixed in the seeds are separated from the full seeds due to the action of the water flow. It floats under the action of water buoyancy to realize sorting.

The lengths of the stirring blades 10 are inconsistent, and are determined according to the size of the space where they are located, so as to avoid mutual interference with the second filter screen 4 or other elements.

Support rod 12, the support rod 12 is laterally arranged between the two ends of the inner wall of the box body 1, the support rod 12 is located below the first filter screen 3; sliding sleeve 13, the sliding sleeve 13 sets Set on the surface of the support rod 12, the sliding sleeve 13 can slide along the length direction of the support rod 12; the screen frame 14, the screen frame 14 One side of the screen frame 14 is an opening; a pull rod 15, one end of the pull rod 15 is fixed on the top of the sliding sleeve 13, and the other end of the pull rod 15 can be pulled through to the outside of one end of the box body 1 .

Before screening, the screen frame 14 is located below one end of the support rod 12, and the open side faces the water surface. After the screening is completed, the deflated seeds, empty shells, grass blades, etc. float on the water surface under the buoyancy of the water. At this time, the pull rod 15 is pulled to drive the The movable sleeve 13 moves, thereby driving the screen frame 14 to move along the water surface, and the impurities on the water surface are collected into the screen frame 14 until the screen frame 14 moves to the bottom of the other end of the support rod 12, and the opening side is in contact with the side wall of the box body 1, Avoid impurity outflow.

A dismounting port 16 for dismounting the screen frame 14 is defined on the side wall of the box body 1 , and the dismounting port 16 is located on one side of the opening of the screen frame 14 .

After the screening is completed, after the water and the full seeds are released respectively, the dismantling port 16 is opened, and the screen frame 14 is taken out from the dismantling port 16 for cleaning, so as to prevent debris from remaining in the screen frame 14 and affecting the next screening.

The liquid level of the water surface is located between the top and bottom of the open side of the screen frame 14 , so that the sundries floating on the water surface can just be collected into the screen frame 14 .

The open end of the screen frame 14 has a large cross-sectional area at the front end and a small cross-sectional area of the sealed end at the rear end. The open front end of the screen frame 14 is an elastic frame, which can be just matched with the inner cavity of the box body 1 when in use, so as to avoid debris from passing through. The two sides of the screen frame 14 float away to ensure the cleaning effect of the sundries. At the same time, after the screening is completed, the front end of the screen frame 14 can be compressed, and the screen frame 14 can be taken out from the disassembly port 16 .

The bottom of the inner cavity of the box body 1 is provided with a conical bucket 20 , and the bottom of the conical bucket 20 is provided with an outlet 19 . The conical bucket 20 is convenient for the water in the box 1 and the sundries under the second filter screen 4 to flow out through the outlet 19, so as to avoid affecting the next screening.

The working principle of the screening device based on wheat three-field seeds provided by the utility model is as follows:

When in use, first pass water into the box body 1 through the water inlet pipe 11, so that the water surface is located between the top and bottom of the open side of the screen frame 14, pour the seeds from the seed feeding hopper 2, and the seeds pass through the first filter screen 3. The particles of gravel, grass and other debris are left behind, the wheat seeds pass normally and fall into the water, the motor 8 drives the stirring shaft 9 to rotate and drives the stirring blades 10 to rotate, and the seeds and water are stirred when the seeds fall into the water. The wheat seeds are completely dispersed, and the lighter weight shriveled seeds, hollow shells, grass blades, etc. are separated from the full seeds due to the action of water flow, and float under the action of water buoyancy. The object falls down through the second filter screen 4, and the pull rod 15 is pulled to drive the movable sleeve 13 to move, thereby driving the screen frame 14 to move along the water surface, and the deflated seeds, empty shells, grass blades and other impurities on the water surface are collected into the screen frame 14 until The screen frame 14 is moved to the bottom of the other end of the support rod 12, and one side of the opening is in contact with the side wall of the box body 1 to prevent impurities from flowing out. And the seed outlet 5, the sundries and the screened high-quality seeds are discharged respectively, and the screening of the seeds is completed.

Compared with the related art, the screening device based on wheat three-field seeds provided by the present utility model has the following beneficial effects:

The utility model provides a screening device for wheat seeds in three fields. By setting a first filter screen 3 and a second filter screen 4 with decreasing pore size, sand, gravel, grass leaves, etc. Sand and other debris similar in weight to the full seeds are screened out separately, and washed with water, so that the lighter debris such as deflated seeds, empty shells, grass blades and other debris in the seeds float on the water surface and are separated from the full seeds. The seeds are further sorted and screened by particle size and weight in three parts to separate out various unqualified sundries and inferior seeds, leaving only seeds with full particles and uniform weight, and the screening effect is better. Effectively improve the yield of seeds and reduce the impact of wheat seed quality on yield.

The above are only the embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are similarly included in the scope of patent protection of the present invention.

Claims (6)

1. The utility model provides a based on three gardens of wheat sieving mechanism for field seed, includes a box, its characterized in that:

the seed inlet hopper is arranged at the top of the box body;

the first filter screen is transversely arranged at the upper part of the inner cavity of the box body, and the first filter screen is downwards inclined from the front end to the rear end;

the second filter screen is transversely arranged at the lower part of the inner cavity of the box body and inclines downwards from the rear end to the front end;

the scraping plates are arranged between two sides of the inner wall of the box body and can move along the surface of the second filter screen;

the motor is arranged outside the box body;

the stirring shaft is transversely arranged in the inner cavity of the box body, one end of the stirring shaft is fixedly connected with an output shaft of the motor, the stirring shaft is positioned between the first filter screen and the second filter screen, and stirring blades are arranged on the stirring shaft along the radial direction of the stirring shaft;

the support rod is transversely arranged between two ends of the inner wall of the box body and is positioned below the first filter screen;

the sliding sleeve is sleeved on the surface of the supporting rod and can slide along the length direction of the supporting rod;

the screen frame is detachably arranged at the bottom of the sliding sleeve, and one side of the screen frame is provided with an opening;

one end of the pull rod is fixed at the top of the sliding sleeve, and the other end of the pull rod can penetrate to the outside of one end of the box body in a drawing mode;

the water inlet pipe is arranged on the side wall of the box body and located below the first filter screen.

2. The screening apparatus for seed in three-nursery field for wheat according to claim 1, wherein a detaching opening for detaching the net frame is formed on a side wall of the casing, and the detaching opening is located at a side of the opening of the net frame.

3. The screening apparatus for seed in three-nursery field for wheat according to claim 1, wherein a slag outlet is formed at a rear end of the first filter screen on a side wall of the casing.

4. The screening device for seeds in a three-nursery wheat field according to claim 1, wherein a seed outlet is formed in the side wall of the box body at the front end of the second filter screen, and a downward-inclined seed outlet pipe is connected to the seed outlet.

5. The screening device for seeds in a wheat three-nursery field according to claim 4, wherein a long rod is fixedly connected to a front side surface of the scraping plate, an inclination angle of the long rod is the same as that of the second filter screen, and one end of the long rod can penetrate to the outside of the box body along the seed outlet pipe.

6. The wheat three nursery seed screening device as claimed in claim 1, wherein a conical hopper is provided at the bottom of the inner cavity of the box body, and an outlet is provided at the bottom of the conical hopper.

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