CN110280470B - Grain screening structure for grain cleaning machine - Google Patents
Grain screening structure for grain cleaning machine Download PDFInfo
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- CN110280470B CN110280470B CN201910429179.5A CN201910429179A CN110280470B CN 110280470 B CN110280470 B CN 110280470B CN 201910429179 A CN201910429179 A CN 201910429179A CN 110280470 B CN110280470 B CN 110280470B
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- arc
- box body
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- box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- Combined Means For Separation Of Solids (AREA)
- Adjustment And Processing Of Grains (AREA)
Abstract
The invention discloses a grain screening structure for a grain cleaner, which comprises a feed hopper, wherein a box body is arranged at the bottom of the feed hopper, a discharge box is arranged at one side of the box body, inclined plates which incline downwards are arranged at two sides of the feed hopper, an impurity channel is formed at the bottom of an arc-shaped plate, an arc-shaped impurity collecting hopper is also connected at the bottom of the arc-shaped plate, the bottom end of the arc-shaped impurity collecting hopper is connected with the side surface of the box body, a corresponding outlet is formed on the box body, and a discharge channel is formed between the top of the arc-shaped impurity collecting hopper and the box body; an arc-shaped material pocket is further arranged in the box body below the arc-shaped impurity collecting hopper, a spiral conveyor is arranged in the box body between the arc-shaped impurity collecting hopper and the arc-shaped material pocket, the conveying end of the spiral conveyor extends into the discharging box, and the rotating shaft of the spiral conveyor is rotationally connected with the box body and the discharging box; a discharge hole is formed at the bottom of the discharge box; the invention can carry out preliminary screening on the grains and can avoid grain accumulation and blockage, and the rotating blades can effectively disperse the grains and improve the working efficiency of the grain cleaning machine.
Description
Technical Field
The invention relates to a grain screening structure for a grain cleaning machine, and belongs to the field of grain cleaning machine equipment.
Background
The grain cleaning machine is one kind of grain screening machine, is equipment for classifying, screening and removing impurities of grains and other economic crops by means of an equipment fan and built-in vibration screening, and is suitable for cleaning and screening of economic crops such as corn, wheat, peanut, soybean, rice, millet, cotton seeds, camellia seeds and the like; the grain sorting structure used on the grain cleaning machine in the prior art is mainly a plane screen, grains enter from a feeding hopper and fall on the screen, meshes are easily blocked, the operation cannot be carried out, the grains cannot be dispersed, and the screening effect is not obvious when the grains are piled at one position in a concentrated mode.
In the grain sorting structure of the grain cleaning machine disclosed by the prior art with the authorized notice number of CN 105381944B, the partition plate arranged in the box body and the sealing plate arranged on the lower surface of the box body easily cause the accumulation of grains in the box body, so that the grains falling into the bottom of the box body firstly cannot be conveyed out by a dragon; and the flood dragon is carrying out grain when carrying out the grain and carrying, sets up the unable wire mesh that passes through of bulky impurity that probably exists in making grain at the outside wire mesh of flood dragon rear end, and long-time impurity is piled up and can be reduced grain conveying efficiency.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the grain screening structure for the grain cleaning machine, which can preliminarily screen grains and avoid grain accumulation and blockage, and the rotating blades can effectively disperse the grains, so that the working efficiency of the grain cleaning machine is improved.
The technical scheme adopted by the invention is as follows:
a grain screening structure for a grain cleaner comprises a feed hopper, wherein a box body is arranged at the bottom of the feed hopper, one side of the box body is provided with a discharge box, inclined plates which are inclined downwards are arranged on two sides of the feed hopper, arc-shaped plates are symmetrically arranged between the two inclined plates, openings of the arc-shaped plates face the sides which are away from each other, the top ends of the arc-shaped plates are arranged close to each other, an impurity channel is formed at the bottom of the arc-shaped plates, an arc-shaped impurity collecting hopper is also connected to the bottom of the arc-shaped plates and is arranged above the box body in an inclined manner, the bottom end of the arc-shaped impurity collecting hopper is connected with the side face of the box body, a corresponding outlet is formed in the box body, and a discharging channel is formed between the top of the arc-shaped impurity collecting hopper and the box body; an arc-shaped material pocket is further arranged in the box body below the arc-shaped impurity collecting hopper, a spiral conveyor is arranged in the box body between the arc-shaped impurity collecting hopper and the arc-shaped material pocket, the conveying end of the spiral conveyor faces one side of the box body provided with the discharging box and extends into the discharging box, and the rotating shaft of the spiral conveyor is rotationally connected with the box body and the discharging box; the bottom of the discharging box is provided with a discharging hole.
Preferably, follow the horizontal interval of front and back end direction of discharge gate is provided with a plurality of pivot, is provided with the blade in the pivot respectively, wherein one end of pivot extends to the outside of discharge gate, is provided with the gear respectively at the pivot end in the discharge gate outside, the outside of discharge gate still is provided with drive arrangement, drive arrangement's executive shaft end is provided with the connecting rod, the bottom of connecting rod is formed with the gear latch, the gear respectively with gear latch joint, drive arrangement drive connecting rod drives the blade and realizes the rotation about in discharge gate department.
Further preferably, a screen structure is formed at one end of the arc-shaped plate close to the impurity channel.
Further preferably, an air outlet pipe is further arranged on the feed hopper below the inclined plate, and the air outlet pipe is externally connected with an exhaust fan.
Further preferably, the outlet is externally provided with a sundry outlet pipe.
Further preferably, the included angle formed between the inclined plate and the feed hopper is 45-60 degrees.
Further preferably, the area of the impurity channel is one fourth of the area of the screen structure.
The invention has the beneficial effects that:
the inclined plate which inclines downwards is adopted to guide the grains to the upper part of the arc-shaped plate, the openings of the arc-shaped plate face to the side which deviates from each other, and a screen structure is formed at one end of the arc-shaped plate close to the impurity channel, so that the grains containing fine impurities can be preliminarily separated and fall to the obliquely arranged arc-shaped impurity collecting hopper to be further cleaned, and the grain cleaning efficiency of a subsequent grain cleaning machine is improved; grain gets into to arc pocket then under screw conveyer's effect through unloading passageway and delivers to the discharge gate, and the further driving vane of drive arrangement rotates and then falls grain to grain cleaning machine's screen cloth along different directions on, has avoided the jam of the mesh that piles up and probably cause of grain, has improved grain cleaning efficiency.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side cross-sectional view of the feed hopper and the housing;
FIG. 3 is a top view of the discharge port;
FIG. 4 is a front view of the discharge port;
FIG. 5 is a schematic view of the connection between the gear and the connecting rod;
the main reference numerals in the figures have the following meanings:
1. the device comprises a feed hopper, 2, a box body, 3, a discharge box, 4, an arc-shaped plate, 5, an arc-shaped impurity collecting hopper, 6, an arc-shaped material bag, 7, a screw conveyor, 8, a discharge port, 9, a driving device, 10, an air outlet pipe, 11, an inclined plate, 21, an outlet, 22, an impurity outlet pipe, 41, an impurity channel, 42, a screen structure, 51, a discharging channel, 81, a rotating shaft, 82, blades, 83, a gear, 91, a connecting rod, 92 and gear latches.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-5: the embodiment is a grain screening structure for a grain cleaner, which comprises a feed hopper 1, wherein a box body 2 is arranged at the bottom of the feed hopper 1, a discharge box 3 is arranged at one side of the box body 2, inclined plates 11 which incline downwards are arranged at two sides of the feed hopper 1, an arc-shaped plate 4 is symmetrically arranged between the two inclined plates 11, the openings of the arc-shaped plates 4 are arranged towards the sides which deviate from each other, the top ends of the arc-shaped plates 4 are arranged close to each other, an impurity channel 41 is formed at the bottom of the arc-shaped plate 4, an arc-shaped impurity collecting hopper 5 is also connected at the bottom of the arc-shaped plate 4, the arc-shaped impurity collecting hopper 5 is obliquely arranged above the box body 2, the bottom end of the arc-shaped impurity collecting hopper 5 is connected with the side surface of the box body 2, a corresponding outlet 21 is formed on the box body 2, and a discharge channel 51 is formed between the top of the arc-shaped impurity collecting hopper 5 and the box body 2; an arc-shaped material pocket 6 is also arranged in the box body 2 below the arc-shaped impurity collecting hopper 5, and the arc-shaped material pocket 6 effectively avoids the accumulation of grains in the box body 2; a spiral conveyor 7 is arranged in the box body 2 between the arc-shaped impurity collecting hopper 5 and the arc-shaped material bag 6, the conveying end of the spiral conveyor 7 faces one side of the box body 2 provided with the discharging box 3 and extends into the discharging box 3, and the rotating shaft of the spiral conveyor 7 is rotatably connected with the box body 2 and the discharging box 3; the bottom of the discharging box 3 is provided with a discharging hole 8.
Referring to fig. 3, 4 and 5, a plurality of rotating shafts 81 are horizontally arranged along the front and rear end directions of the discharge port 8 at intervals, blades 82 are respectively arranged on the rotating shafts 81, one end of each rotating shaft 81 extends to the outer side of the discharge port 8, gears 83 are respectively arranged at the tail ends of the rotating shafts 81 at the outer sides of the discharge port 8, a driving device 9 is further arranged at the outer side of the discharge port 8, a connecting rod 91 is arranged at the tail end of an execution shaft of the driving device 9, gear latches 92 are formed at the bottom of the connecting rod 91, the gears 83 are respectively clamped with the gear latches 92, and the driving device 9 drives the connecting rod 91 to drive the blades 82 to rotate left and right at the discharge port 8.
Referring to fig. 2, a screen structure 42 is formed at one end of the arc plate 4 adjacent to the impurity passage 41.
Still be provided with out tuber pipe 10 on feeder hopper 1 of swash plate 11 below, go out tuber pipe 10 and external exhaust fan, the updraft ventilator can carry out effectual taking out with the raise dust in the feeder hopper 1.
An impurity outlet pipe 22 is arranged outside the outlet 21.
An included angle A is formed between the inclined plate 11 and the feed hopper 1, and the included angle A is 45 degrees; in practical applications, the included angle a may also be 50 °, 55 ° or 60 °.
The area of the impurity channel 41 is one quarter of the area of the screen structure 42.
The working principle of the invention is as follows:
grain falls onto the inclined plate 11 through the feed hopper 1, is guided onto the arc-shaped plate 4 under the action of the inclined plate 11, then under the action of gravity, the grain sequentially passes through the screen structure 42 and the impurity channel 41 and then enters the arc-shaped material pocket 6 through the blanking channel 51, the screen structure 42 can filter fine dust contained in the grain to the arc-shaped impurity collecting hopper 5, and part of impurities with light weight and large volume can also fall into the arc-shaped impurity collecting hopper 5 through the impurity channel 41 and then are recycled through the impurity outlet pipe 22; grain relies on under the effect of self gravity, will slide to the farther place of distance, then get into arc pocket 6 through unloading passageway 51, screw conveyer 7 that sets up in the box 2 between arc collection miscellaneous fill 5 and the arc pocket 6 is with further transport to discharge gate 8 of grain, drive arrangement 9 is just reversing in turn to drive connecting rod 91 and is driven blade 82 and realize the rotation about discharge gate 8 department, and then can drop grain to the not equidirectional screen cloth of grain cleaning machine on carry out further grain cleaning and handle.
According to the grain screening structure for the grain cleaning machine, provided by the invention, the inclined plate which inclines downwards is adopted to guide grains to the upper part of the arc-shaped plate, the openings of the arc-shaped plate are arranged towards the sides which deviate from each other, and a screen structure is formed at one end, close to the impurity channel, of the arc-shaped plate, so that fine impurities contained in the grains can be preliminarily separated and fall to the obliquely arranged arc-shaped impurity collecting hopper to be further cleaned, and the grain cleaning efficiency of the subsequent grain cleaning machine is improved; grain gets into to arc pocket then under screw conveyer's effect through unloading passageway and delivers to the discharge gate, and the further driving vane of drive arrangement rotates and then falls grain to grain cleaning machine's screen cloth along different directions on, has avoided the jam of the mesh that piles up and probably cause of grain, has improved grain cleaning efficiency.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (6)
1. The utility model provides a grain divides sieve structure for grain cleaner which characterized in that: comprises a feed hopper (1), a box body (2) is arranged at the bottom of the feed hopper (1), one side of the box body (2) is provided with a discharge box (3), two sides of the feed hopper (1) are provided with inclined plates (11) which incline downwards, arc-shaped plates (4) are symmetrically arranged between the two inclined plates (11), the openings of the arc-shaped plates (4) are arranged towards the sides which are deviated from each other, the top ends of the arc-shaped plates (4) are arranged close to each other, the bottom of each arc-shaped plate (4) is provided with an impurity channel (41), the bottom of the arc-shaped plate (4) is also connected with an arc-shaped impurity collecting hopper (5), the arc-shaped impurity collecting hopper (5) is obliquely arranged above the box body (2), the bottom end of the arc-shaped impurity collecting hopper (5) is connected with the side surface of the box body (2) and a corresponding outlet (21) is formed on the box body (2), a blanking channel (51) is formed between the top of the arc-shaped impurity collecting hopper (5) and the box body (2); an arc-shaped material pocket (6) is further arranged in the box body (2) below the arc-shaped impurity collecting hopper (5), a spiral conveyor (7) is arranged in the box body (2) between the arc-shaped impurity collecting hopper (5) and the arc-shaped material pocket (6), the conveying end of the spiral conveyor (7) faces one side of the box body (2) provided with the discharging box (3) and extends into the discharging box (3), and the rotating shaft of the spiral conveyor (7) is rotationally connected with the box body (2) and the discharging box (3); a discharge hole (8) is formed at the bottom of the discharge box (3);
follow the front and back end direction horizontal interval of discharge gate (8) is provided with a plurality of pivot (81), be provided with blade (82) on pivot (81) respectively, the outside of discharge gate (8) is extended to one end wherein of pivot (81), is provided with gear (83) respectively at pivot (81) end in the discharge gate (8) outside, the outside of discharge gate (8) still is provided with drive arrangement (9), the execution axle end of drive arrangement (9) is provided with connecting rod (91), the bottom of connecting rod (91) is formed with gear latch (92), gear (83) respectively with gear latch (92) joint, drive arrangement (9) drive connecting rod (91) drive blade (82) and realize the rotation about in discharge gate (8) department.
2. The grain screening structure for the grain cleaning machine as claimed in claim 1, wherein a screen mesh structure (42) is formed at one end of the arc-shaped plate (4) close to the impurity passage (41).
3. The grain screening structure for the grain cleaning machine according to claim 1, wherein an air outlet pipe (10) is further arranged on the feed hopper (1) below the inclined plate (11), and the air outlet pipe (10) is externally connected with an exhaust fan.
4. The grain screening structure for the grain cleaning machine as claimed in claim 1, wherein the outlet (21) is externally provided with a impurity discharging pipe (22).
5. The grain screening structure for the grain cleaning machine according to claim 1, wherein an included angle formed between the inclined plate (11) and the feed hopper (1) is 45-60 degrees.
6. The grain classifying structure for grain cleaning machine according to claim 2, wherein the area of the impurity passage (41) is one fourth of the area of the screen structure (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429179.5A CN110280470B (en) | 2019-05-22 | 2019-05-22 | Grain screening structure for grain cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429179.5A CN110280470B (en) | 2019-05-22 | 2019-05-22 | Grain screening structure for grain cleaning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110280470A CN110280470A (en) | 2019-09-27 |
| CN110280470B true CN110280470B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910429179.5A Active CN110280470B (en) | 2019-05-22 | 2019-05-22 | Grain screening structure for grain cleaning machine |
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| CN (1) | CN110280470B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5598931A (en) * | 1994-10-11 | 1997-02-04 | Nisshin Flour Milling Co., Ltd. | Sifter frame for powder particle sifter |
| CN205473664U (en) * | 2015-12-10 | 2016-08-17 | 泸州恒态生物科技有限公司 | Moist grain device of screening |
| CN206139494U (en) * | 2016-08-30 | 2017-05-03 | 郑州三和水工机械有限公司 | Feed divider for shale shaker |
| CN207170251U (en) * | 2017-07-27 | 2018-04-03 | 汝南县九阳机械有限公司 | A kind of grains separating machine |
| CN208179930U (en) * | 2018-03-28 | 2018-12-04 | 泉州卡牧达卫浴有限公司 | Filter device is used in a kind of stirring of concrete |
| CN109013333B (en) * | 2018-08-03 | 2020-05-01 | 应瑶琪 | Be used for kernel of corn classified screening device |
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- 2019-05-22 CN CN201910429179.5A patent/CN110280470B/en active Active
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| CN110280470A (en) | 2019-09-27 |
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