Peanut seed screening machine for high-yield peanut field

Abstract

The invention relates to the technical field of peanut kernel screening, in particular to a peanut seed screening machine for a high-yield peanut field, which comprises a case and a screening cavity formed in the case. Peanut kernels can be flatly spread and distributed on the surface of the metal net conveying belt and can be separated by a plurality of dispersing scrapers in the dispersing assembly in batches when falling to the feeding port, and hot air exhausted from the position between every two adjacent dispersing scrapers can dry the peanut kernels located between every two adjacent dispersing scrapers at present. The hot air finally enters the filtering cavity from the screening cavity, is filtered by the filtering net in the filtering cavity, is discharged from the exhaust pipe, enters the corresponding air cavity and blows the corresponding impeller, so that the plurality of dispersing scrapers are driven to rotate, and meanwhile, the hot air is discharged from second strip-shaped holes in the middle of the plurality of dispersing scrapers; and the peanut kernels are rapidly discharged after being dried in batches, and the winnowing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of peanut grain screening, and particularly relates to a peanut seed screening machine for high-yield peanut fields. Background Art

[0002] Before sowing peanuts, for peanut seeds that are prone to moisture due to improper placement, it is best to sun the fruits at least twice before shelling. After shelling, carefully pick out the bright-colored, plump, and shiny grade-1 grains as high-yield seeds. Pick out the insect-eaten, germinated, yellowish-brown peanut grains, and grade-3 grains that are not suitable for seeding, and use less or no grade-2 grains.

[0003] There are many types of traditional peanut grain screening machines. Among them, the screening machine that uses the air separation method screens according to the differences in density and gas dynamics properties between the coated peanut seeds and impurities, and uses wind power to separate the impurities in the peanut grains. Through the action of the air flow, the light impurities and dust are separated from the coated peanut seeds.

[0004] However, when the traditional air separation equipment screens peanut grains, due to the accumulation of the coated peanut seeds and the high humidity of the peanut grains, the coated peanut seeds are not easily blown away by the air flow. As a result, the coated peanut seeds that should have been blown away cannot be dispersed and directly fall into the lower discharge port, ultimately reducing the screening effect. Summary of the Invention

[0005] Aiming at the above-mentioned drawbacks of the prior art, the present invention provides a peanut seed screening machine for high-yield peanut fields, which can effectively solve the problems raised in the background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0007] The present invention provides a peanut seed screening machine for high-yield peanut fields, including a machine case and a screening chamber opened in the machine case. The top of the machine case penetrates through the screening chamber to form a feeding port, and the bottom of the machine case penetrates through the screening chamber to form a plurality of discharging ports. A hot air blower with an output end communicated with the screening chamber is installed on the side wall of the machine case. A conveyor is installed on the top of the machine case, and the discharging end of the conveyor is opposite to the position of the feeding port. The leveling assembly includes a leveling roller sleeve rotatably arranged above the conveyor and keeping a distance from the conveying end face of the conveyor. The dispersing assembly includes a fixed roller fixedly arranged at one end of the conveyor and located above the feeding port. The outer roller wall of the fixed roller penetrates through the inner cavity to form a first strip-shaped hole. A rotating roller sleeve is rotatably sleeved on the outer roller wall of the fixed roller in a matching manner. Impellers are installed at both ends of the rotating roller sleeve. A plurality of dispersing scraping plates in contact with the output end face of the conveyor are equidistantly installed on the outer sleeve wall of the rotating roller sleeve. Second strip-shaped holes are formed through the surface of the rotating roller sleeve between two adjacent dispersing scraping plates. A filtering seat is installed on the top of the machine case, and a filtering chamber communicated with the screening chamber is opened at the lower bottom. A filter screen is detachably installed in the filtering chamber. The output ends at the top of the filtering seat are communicated with two exhaust pipes, and the end output ports of the two exhaust pipes are respectively opposite to the positions of the corresponding impellers.

[0008] Further, a plurality of discharging hoppers respectively opposite to the discharging ports are installed at the bottom of the machine case, and electromagnetic valves are installed at the bottom output ports of the plurality of discharging hoppers. Two support seats are vertically and fixedly installed at the bottom end of the machine case.

[0009] Further, the conveyor includes two side plates vertically and fixedly installed on the top of the machine case. Two driving rollers are rotatably installed between the two side plates. A metal mesh conveyor belt is wound around the outer roller walls of the two driving rollers. A driving motor is vertically and fixedly installed on the outer side wall of one of the side plates, and the output end of the driving motor is fixedly connected to the end of one of the rotating rollers. A feeding hopper is fixedly installed between the two side plates, and a discharging gap is reserved between the output end at the bottom of the feeding hopper and the metal mesh conveyor belt.

[0010] Further, the leveling assembly further includes a fixed shaft arranged between the two side plates. Screws are arranged at both ends of the fixed shaft and are threadedly installed on the side plates. The two screws respectively press against both ends of the fixed shaft. The leveling roller sleeve is limited and rotatably sleeved on the outer shaft wall of the fixed shaft, and a gap is reserved between the leveling roller sleeve and the metal mesh conveyor belt.

[0011] Further, the dispersing assembly further includes two fixed seats. Air cavities are respectively opened in the two fixed seats. Circular holes are respectively opened through the corresponding air cavities on the opposite sides of the two fixed seats. Annular limiting grooves are opened on the inner hole walls of the two circular holes.

[0012] Further, both ends of the fixed roller are vertically and fixedly installed with corresponding fixed seats. A cylindrical cavity is formed inside the fixed roller. Air inlet holes communicating with the cylindrical cavity are formed through the air cavities on the opposite sides of the two fixed seats. Both impellers are rotatably installed on the opposite inner cavity walls of the corresponding air cavities.

[0013] Further, both ends of the rotating roller sleeve penetrate through the corresponding round holes. Annular limiting members are fixedly sleeved on the outer sleeve walls of the rotating roller sleeve. The two annular limiting members are respectively rotatably sleeved in the corresponding annular limiting grooves. A number of connecting blocks are installed between the rotating roller sleeve and the corresponding impeller.

[0014] Further, the inner diameter of the rotating roller sleeve is the same as the outer diameter of the fixed roller, and the lengths of the first strip-shaped holes and the number of second strip-shaped holes are the same.

[0015] Further, an insertion port is formed through the filter cavity on one side of the filter seat. The ends of the two exhaust pipes away from the filter seat are respectively fixedly connected to the side walls of the corresponding fixed seats and are communicated with the corresponding air cavities.

[0016] Further, a collection frame is detachably and slidably installed in the filter cavity. The filter net is adaptively embedded at the upper cavity opening of the collection frame. A handle is installed at one end of the collection frame.

[0017] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0018] 1. Before the coated peanut seeds fall into the air separation chamber, operations such as leveling, pausing and batching, and drying the coated peanut seeds in advance can ensure the stable and reliable air separation effect of the coated peanut seeds. Specifically, the coated peanut seeds falling from the feed hopper onto the metal mesh conveyor belt are first leveled and height-limited by the leveling roller sleeve, so that the coated peanut seeds can be evenly distributed on the surface of the metal mesh conveyor belt, initially avoiding the upper and lower layers of the coated peanut seeds from piling up together. The coated peanut seeds after leveling will fall towards the inlet under the uniform transportation of the conveyor. When about to fall into the inlet, they will be blocked in batches by several dispersion scrapers in the dispersion assembly. During this process, the hot air discharged from between two adjacent dispersion scrapers will dry the coated peanut seeds currently between the two adjacent dispersion scrapers, which can further reduce the humidity of the coated peanut seeds, thereby avoiding mutual adhesion and affecting the air separation effect;

[0019] 2. The hot air that enters the screening chamber for winnowing the coated peanut seeds finally enters the filtering chamber from the screening chamber. After being filtered by the filter screen in the filtering chamber, it is discharged from the exhaust pipe and enters the corresponding air chamber, blowing the corresponding impeller, thereby driving the rotation of a number of dispersion scrapers. At the same time, the hot air is discharged from the second strip-shaped hole in the middle of the number of dispersion scrapers, and the coated peanut seeds are quickly discharged after being dried in batches, improving the winnowing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall first perspective structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall second perspective structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the chassis of the present invention;

[0024] Figure 4 For the present invention Figure 3 The enlarged structure schematic diagram at A in;

[0025] Figure 5 It is a schematic diagram of the scraping and leveling assembly structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the dispersion assembly structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the split structure of the fixed roller and the rotating roller sleeve of the present invention;

[0028] Figure 8 For the present invention Figure 7 The enlarged structure schematic diagram at B in.

[0029] The reference numerals in the drawings respectively represent:

[0030] 1. Chassis; 11. Screening chamber; 12. Feed inlet; 13. Discharge port; 14. Solenoid valve; 15. Support seat;

[0031] 2. Hot air blower;

[0032] 3. Conveyor; 31. Feed hopper;

[0033] 41. Fixed shaft; 42. Screw; 43. Scraping roller sleeve

[0034] 51. Fixed seat; 52. Round hole; 53. Annular limiting groove; 54. Fixed roller; 55. First strip hole; 56. Air inlet hole; 57. Impeller; 58. Rotating roller sleeve; 59. Connecting block; 510. Dispersion scraper; 511. Second strip hole

[0035] 6. Filter seat; 61. Insertion interface; 62. Exhaust pipe; 63. Collection box; 64. Filter net; 65. Handle Specific embodiments

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] The present invention will be further described below with reference to the embodiments.

[0038] Embodiment 1

[0039] Referring to Figures 1-8 , which is the first embodiment of the present invention, a peanut seed screening machine for high-yield peanut fields includes a machine case 1 and a screening chamber 11 opened in the machine case 1. An inlet 12 is opened through the top of the machine case 1 and penetrates the screening chamber 11. The width of the inlet 12 is large enough to ensure that the coated peanut seeds falling from the conveyor 3 can accurately enter through the inlet 12 without any feeding dead corners. A plurality of discharge ports 13 are opened through the bottom of the machine case 1 and penetrate the screening chamber 11. A hot air blower 2 with an output end communicating with the screening chamber 11 is installed on the side wall of the machine case 1. The output end of the hot air blower 2 is directly communicated with the outside air. After extracting the outside cold air and heating it through the built-in heating resistor, it is sent into the screening chamber 11. The conveyor 3 is installed on the top of the machine case 1, and the discharging end of the conveyor 3 is opposite to the position of the inlet 12. That is to say, the coated peanut seeds falling from the conveyor 3 can directly fall into the inlet 12. The scraping assembly includes a scraping roller sleeve 43 rotatably arranged above the conveyor 3 and keeping a distance from the conveying end surface of the conveyor 3. The entire scraping assembly can be disassembled from the conveyor 3 as a whole. By replacing the scraping roller sleeves 43 with different outer diameter specifications, the distance between the scraping roller sleeve 43 and the surface of the metal mesh conveyor belt of the conveyor 3 can be adjusted;

[0040] The dispersing component includes a fixed roller 54 fixedly arranged at one end of the conveyor 3 and located above the feeding port 12. The outer roller wall of the fixed roller 54 is provided with a first strip-shaped hole 55 penetrating through the inner cavity. A rotating roller sleeve 58 is rotatably sleeved on the outer roller wall of the fixed roller 54 in a matching manner. Impellers 57 are installed at both ends of the rotating roller sleeve 58. A number of dispersing scraping plates 510 in contact with the output end face of the conveyor 3 are installed at equal intervals on the outer sleeve wall of the rotating roller sleeve 58. Therefore, when the dispersing scraping plates 510 rotate, the coated peanut seeds can be blocked in batches. A second strip-shaped hole 511 is penetrated through the surface of the rotating roller sleeve 58 between two adjacent dispersing scraping plates 510. That is to say, there are many second strip-shaped holes 511. When the rotating roller sleeve 58 rotates, a number of second strip-shaped holes 511 will respectively coincide with the position of the first strip-shaped hole 55. When they coincide, the hot air in the first strip-shaped hole 55 will pass through the corresponding second strip-shaped hole 511 and blow into the space between two adjacent partition plates 510 to dry the coated peanut seeds in this space. The filtering seat 6 is installed on the top of the chassis 1, and its lower bottom is provided with a filtering cavity communicating with the screening cavity 11. That is to say, a ventilation hole is also provided at the connection between the top of the chassis 1 and the filtering seat 6. The screening cavity 11 is connected to the filtering cavity through this ventilation hole. A filter screen 64 is detachably installed in the filtering cavity to intercept the lighter mixtures mixed in the coated peanut seeds, such as flying fluffs. The output end at the top of the filtering seat 6 is communicated with two exhaust pipes 62, and the end output ports of the two exhaust pipes 62 are respectively opposite to the positions of the corresponding impellers 57.

[0041] Embodiment 2:

[0042] Referring to Figures 1-2 , this is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a number of blanking hoppers respectively opposite to the blanking ports 13 are installed at the bottom of the chassis 1. Solenoid valves 14 are installed at the bottom output ports of the number of blanking hoppers. The opening and closing of the solenoid valves 14 control the discharge of the coated peanut seeds of different specifications in the corresponding blanking hoppers. Two support seats 15 are vertically and fixedly installed at the bottom end of the chassis 1, so that there is enough clearance between the bottom output ends of the number of blanking hoppers and the ground to facilitate the discharge of the coated peanut seeds of different specifications. The conveyor 3 includes two side plates vertically and fixedly installed on the top of the chassis 1. Two driving rollers are rotatably installed between the two side plates. A metal mesh conveyor belt is wound around the outer roller walls of the two driving rollers. A driving motor is vertically and fixedly installed on the outer side wall of one of the side plates, and the output end of the driving motor is fixedly connected to the end of one of the rotating rollers. A feeding hopper 31 is fixedly installed between the two side plates 3. There is a blanking gap between the output end at the bottom of the feeding hopper 31 and the metal mesh conveyor belt, so that the coated peanut seeds fed from the feeding hopper 31 can have enough blanking space to fall onto the surface of the metal mesh conveyor belt;

[0043] The leveling component further includes a fixed shaft 41 arranged between two side plates. Screws 42 are threadedly installed on the side plates at both ends of the two fixed shafts 41. The two screws 42 respectively press against both ends of the fixed shaft 41. The leveling roller sleeve 43 is rotationally installed on the outer shaft wall of the fixed shaft 41 with a limit. A gap is reserved between the leveling roller sleeve 43 and the metal mesh conveyor belt. When it is necessary to level the coated peanut seeds of different specifications, the screws 42 at both ends can be removed, and then the fixed shaft 41 together with the leveling roller sleeve 43 can be directly taken out and replaced with a leveling roller sleeve 43 that meets the specifications. Two limit rings are fixedly sleeved on the surface of the fixed shaft 41, and two annular grooves are opened on the inner wall of the leveling roller sleeve 43. Through the two limit rings and the annular grooves, the leveling roller sleeve 43 can be rotationally installed on the outer shaft wall of the fixed shaft 41 with a limit;

[0044] The remaining structure is the same as that of Embodiment 1.

[0045] Embodiment 3:

[0046] Refer to Figures 1-6 , which is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the dispersion component further includes two fixed seats 51. Air cavities are opened inside the two fixed seats 51. Circular holes 52 are opened on the opposite sides of the two fixed seats 51 through the corresponding air cavities. Annular limiting grooves 53 are opened on the inner hole walls of the two circular holes 52. Both ends of the fixed roller 54 are vertically and fixedly installed with the corresponding fixed seats 51. A cylindrical cavity is opened inside the fixed roller 54. Air inlet holes 56 communicating with the cylindrical cavity are opened on the opposite sides of the two fixed seats 51 through the air cavities. The two impellers 57 are rotationally installed on the opposite inner cavity walls of the corresponding air cavities, so as to ensure that no matter how the rotating roller sleeve 58 rotates to any angle, the impellers 57 always maintain stable installation;

[0047] Both ends of the rotating roller sleeve 58 respectively penetrate through the corresponding circular holes 52, and annular limiting members are fixedly sleeved on the outer wall of the rotating roller sleeve 58. The two annular limiting members are respectively rotationally installed in the corresponding annular limiting grooves 53, ensuring that a number of connecting blocks 59 are installed between the rotating roller sleeve 58 and the corresponding impellers 57. The inner diameter of the rotating roller sleeve 58 is the same as the outer diameter of the fixed roller 54, ensuring stable rotational connection and no hot air leakage, and the lengths of the first strip-shaped holes 55 and a number of second strip-shaped holes 511 are the same, ensuring smooth output of hot air;

[0048] The remaining structure is the same as that of Embodiment 2.

[0049] Embodiment 4:

[0050] Refer to Figures 7-8, which is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is as follows: An insertion port 61 is provided on one side of the filter seat 6 through the filter chamber. One ends of the two exhaust pipes 62 away from the filter seat 6 are respectively fixedly connected to the side walls of the corresponding fixed seats 51 and are communicated with the corresponding air chambers. A collection frame 63 is detachably and slidably installed in the filter chamber. Limiting bars are installed on both sides of the collection frame 63, and limiting slots are provided on the two opposite inner cavity walls of the insertion port 61. Through the insertion and matching of the limiting bars and the limiting slots, the limiting and fixing of the collection frame 63, that is, the filter screen 64, are realized. The filter screen 64 is adaptively embedded and installed at the upper cavity opening of the collection frame 63. A handle 65 is installed at one end of the collection frame 63, which is convenient for pulling out the collection frame 63 and the filter screen 64 from the insertion port 61, and reinserting and resetting them after cleaning the internal impurities.

[0051] The rest of the structure is the same as that of Embodiment 3.

[0052] The working principle of the present invention:

[0053] First step, first put the coated peanut seeds to be screened into the feed hopper 31. Due to gravity, the coated peanut seeds will naturally fall onto the surface of the metal mesh conveyor belt. At the same time, the drive motor in the conveyor is synchronously started, which drives the corresponding transmission roller to rotate. Through the cooperation with another transmission roller, the metal mesh conveyor belt starts to rotate uniformly in a circular motion. With the uniform falling of the coated peanut seeds, the coated peanut seeds are evenly dropped onto the surface of the metal mesh conveyor belt. When the coated peanut seeds encounter the leveling roller sleeve 43, they will be blocked by the leveling roller sleeve 43 and forced to change from the state of being stacked up and down to a flat state, so as to avoid the influence of stacking up and down on the self-drying of the coated peanut seeds and the subsequent winnowing effect.

[0054] Second step, while the coated peanut seeds are rotating uniformly, start the hot air blower 2. The hot air supplemented by the hot air blower 2 and entering the screening chamber 11 will enter the filter chamber from the screening chamber 11. A collection frame 63 is detachably and slidably installed in the filter chamber, and a filter screen 64 is installed at the upper cavity opening of the collection frame 63. Therefore, a small amount of impurities will inevitably be carried in the hot air from the screening chamber 11. These impurities will be intercepted and collected by the filter screen 64. When too much accumulates, the collection frame 63 and the filter screen 64 can be pulled out of the filter chamber as a whole for replacement and cleaning.

[0055] In the third step, the filtered hot air is discharged from the two exhaust pipes 62 at the top of the filter base 6 into the air cavities in the corresponding fixed bases 51 respectively, and directly blows the impellers 57 in the air cavities to rotate. Thus, the rotating roller sleeve 58 is driven to rotate through the connecting block 59, and then a number of dispersing scrapers 510 are driven to rotate. The rotating direction of the dispersing scrapers 510 is opposite to that of the driving roller. The originally flat-coated peanut seeds distributed on the metal mesh conveyor belt can be further separated by the number of evenly distributed dispersing scrapers 510, and the centrifugal force generated when the dispersing scrapers rotate drives the separated coated peanut seeds to quickly enter the feeding port 12;

[0056] In the fourth step, the hot air that enters the two air cavities to drive the impellers 57 will also enter the cylindrical cavity inside the fixed roller 54 from the corresponding air inlet holes 56, and finally be discharged through the first strip-shaped holes 55. Since the rotating roller sleeve 58 is sleeved on the outer roller wall of the fixed roller 54 and the inner diameter of the rotating roller sleeve 58 is the same as the outer diameter of the fixed roller 54, when one of the second strip-shaped holes 511 on the outer wall of the rotating roller sleeve 58 coincides with the first strip-shaped hole 55 during rotation, the hot air discharged from the first strip-shaped hole 55 will pass through the second strip-shaped hole 511 and blow onto the surface of the coated peanut seeds currently located between the two dispersing scrapers 510, drying this part of the coated peanut seeds that have been separated into a batch;

[0057] In the fifth step, the coated peanut seeds of the same batch after drying will quickly fall from the feeding port 12 into the screening chamber 11 under the rotating action of the dispersing scrapers 510. At the same time, the hot air blower 2 in the screening chamber 11 is started to perform air separation on the falling coated peanut seeds. During the air separation process, the solenoid valves 14 at the output ports of the lower hoppers below the several feeding ports 13 are all closed to ensure that the hot air in the screening chamber 11 will not be discharged from the several lower hoppers. When the coated peanut seeds of different specifications in the lower hoppers accumulate too much, the coated peanut seeds in the lower hoppers are discharged by opening the solenoid valves 14.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A peanut seed screening machine for high-yield peanut fields, comprising a machine case (1) and a screening chamber (11) opened in the machine case (1). An inlet (12) is opened through the top of the machine case (1) and penetrates the screening chamber (11). A plurality of discharge ports (13) are opened through the bottom of the machine case (1) and penetrate the screening chamber (11). A hot air blower (2) with an output end communicated with the screening chamber (11) is installed on the side wall of the machine case (1), and it is characterized in that, Further included are: a conveyor (3), installed on the top of the chassis (1), and the discharging end of the conveyor (3) is opposite to the position of the feeding port (12); a leveling assembly, including a leveling roller sleeve (43) rotatably arranged above the conveyor (3) and keeping a distance from the conveying end face of the conveyor (3); a dispersing assembly, including a fixed roller (54) fixedly arranged at one end of the conveyor (3) and located above the feeding port (12), a first strip-shaped hole (55) is formed through the inner cavity in the outer roller wall of the fixed roller (54), a rotating roller sleeve (58) is rotatably sleeved on the outer roller wall of the fixed roller (54) in a matching manner, impellers (57) are installed at both ends of the rotating roller sleeve (58), a plurality of dispersing scraping plates (510) in contact with the output end face of the conveyor (3) are equidistantly installed on the outer sleeve wall of the rotating roller sleeve (58), and second strip-shaped holes (511) are formed through the surface of the rotating roller sleeve (58) between two adjacent dispersing scraping plates (510); a filter seat (6), installed on the top of the chassis (1), and a filter cavity communicating with the screening cavity (11) is formed in the lower bottom, a filter net (64) is detachably installed in the filter cavity, the output end at the top of the filter seat (6) is communicated with two exhaust pipes (62), and the end output ports of the two exhaust pipes (62) are respectively opposite to the positions of the corresponding impellers (57).

2. The peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, A plurality of discharging hoppers respectively opposite to the discharging port (13) are installed at the bottom of the chassis (1), electromagnetic valves (14) are installed at the bottom output ports of the plurality of discharging hoppers, and two support seats (15) are vertically and fixedly installed at the bottom end of the chassis (1).

3. A peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, The conveyor (3) includes two side plates vertically and fixedly installed on the top of the chassis (1), two driving rollers are rotatably installed between the two side plates, a metal mesh conveyor belt is wound around the outer roller walls of the two driving rollers, a driving motor is vertically and fixedly installed on the outer side wall of one of the side plates, the output end of the driving motor is fixedly connected to the end of one of the rotating rollers, a feeding hopper (31) is fixedly installed between the two side plates (3), and a discharging gap is reserved between the output end at the bottom of the feeding hopper (31) and the metal mesh conveyor belt.

4. The peanut seed screening machine for high-yield peanut fields according to claim 3, wherein, The leveling assembly further includes a fixed shaft (41) arranged between the two side plates, screws (42) are arranged at both ends of the fixed shaft (41) and are threadedly installed on the side plates, the two screws (42) respectively press against both ends of the fixed shaft (41), the leveling roller sleeve (43) is limited and rotatably sleeved on the outer shaft wall of the fixed shaft (41), and a gap is reserved between the leveling roller sleeve (43) and the metal mesh conveyor belt.

5. A peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, The dispersing assembly further includes two fixed seats (51), air cavities are formed in the two fixed seats (51), circular holes (52) are formed through the corresponding air cavities on the opposite sides of the two fixed seats (51), and annular limiting grooves (53) are formed in the inner hole walls of the two circular holes (52).

6. The peanut seed screening machine for high-yield peanut fields according to claim 5, characterized in that, Both ends of the fixed roller (54) are vertically and fixedly installed with corresponding fixed seats (51). A cylindrical cavity is formed inside the fixed roller (54). Air inlet holes (56) communicating with the cylindrical cavity are formed through the air cavities on the opposite sides of the two fixed seats (51). Both of the impellers (57) are rotatably installed on the opposite inner cavity walls of the corresponding air cavities.

7. The peanut seed screening machine for high-yield peanut fields according to claim 5, characterized in that, Both ends of the rotating roller sleeve (58) penetrate through the corresponding round holes (52). Annular limiting members are fixedly sleeved on the outer sleeve walls of the rotating roller sleeve (58). The two annular limiting members are respectively rotatably sleeved in the corresponding annular limiting grooves (53). A number of connecting blocks (59) are installed between the rotating roller sleeve (58) and the corresponding impeller (57).

8. A peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, The inner diameter of the rotating roller sleeve (58) is the same as the outer diameter of the fixed roller (54), and the lengths of the first strip-shaped holes (55) and the number of second strip-shaped holes (511) are the same.

9. A peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, An insertion port (61) is formed through the filter cavity on one side of the filter seat (6). The ends of the two exhaust pipes (62) far from the filter seat (6) are respectively fixedly connected to the side walls of the corresponding fixed seats (51) and are communicated with the corresponding air cavities.

10. The peanut seed screening machine for high-yield peanut fields according to claim 1, characterized in that, A collection frame (63) is detachably and slidably installed in the filter cavity. The filter net (64) is adaptively embedded at the upper cavity opening of the collection frame (63). A handle (65) is installed at one end of the collection frame (63).

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