CN111498391A

CN111498391A - Dual-function seed screening equipment

Info

Publication number: CN111498391A
Application number: CN202010326108.5A
Authority: CN
Inventors: 张凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-08-07

Abstract

The invention discloses a dual-function seed screening device, which comprises a fixed frame, a discharge plate, a leakage-proof baffle plate, a supporting rod, a transverse plate, a crushed slag collecting box, a sundry plate, a baffle plate, a winnowing box, a ventilating pipe, a supporting column, an exhaust pipe, a lower sliding plate, a conveying wheel, a conveying box, a baffle plate, a first conveying wheel, a first fixed seat, a discharge hole, a second conveying wheel, a protective box, a second driving wheel, a second motor, a first driving wheel, a first fixed shaft, a connecting rod, a second fixed shaft, a second-stage sieve plate, a third fixed shaft, a second fixed seat, a rotating shaft, a connecting plate, a first-stage sieve plate, a clamping plate, a roller, the double-screening and impurity-treating device is characterized in that a first motor is arranged on one side of the inner bottom surface of the fixing frame, a first driving wheel is arranged on one side of the first motor, and the output end of the first motor is in transmission connection with the first driving wheel.

Description

Dual-function seed screening equipment

Technical Field

The invention relates to the field of solanaceous fruit equipment, in particular to dual-function seed screening equipment.

Background

Before sowing vegetables, grains, melons and fruits and other food, the seeds need to be screened, the traditional method is to adopt manual selection of sundries, or the old hand-operated windmill is adopted to remove the sundries, the two methods have lower working efficiency, need manual operation and high labor intensity, in order to improve the working efficiency, the winnowing machine is adopted in many places to remove the sundries in the materials, namely, the impurities are removed from the seeds by utilizing the quality difference between the seeds and the impurities through the action of a fan, the existing seed winnowing machine can not separate sundries with mass larger than that of the seeds, sundries with mass smaller than that of the seeds, seeds with light specific gravity and seeds with heavy specific gravity at the same time, the sundries and the materials are not thoroughly separated in the using process, the winnowing effect is not good, and the sundries after separation are difficult to remove, manual cleaning by workers is not needed, and the working efficiency is low, so that the dual-function seed screening equipment is provided.

Disclosure of Invention

The invention aims to provide a dual-function seed screening device, which solves the problems that the existing seed winnowing machine cannot separate sundries with mass larger than that of seeds, sundries with mass smaller than that of the seeds, seeds with light specific gravity and seeds with heavy specific gravity at the same time, the sundries and materials are not thoroughly separated in the using process, the winnowing effect is poor, the separated sundries are difficult to remove, workers do not need to manually clean, and the working efficiency is low.

The purpose of the invention can be realized by the following technical scheme:

a dual-function seed screening device comprises a fixing frame, a discharge plate, a leakage-proof baffle plate, a supporting rod, a transverse plate, a crushed slag collecting box, a sundry plate, a baffle plate, a winnowing box, a ventilating pipe, a supporting column, an exhaust pipe, a lower sliding plate, a conveying wheel, a conveying box, a baffle plate, a first conveying wheel, a first fixing seat, a discharge port, a second conveying wheel, a protecting box, a second driving wheel, a second motor, a first driving wheel, a first fixing shaft, a connecting rod, a second fixing shaft, a third fixing shaft, a second fixing seat, a rotating shaft, a connecting plate, a first-stage sieve plate, a fixing spring, a fan, a clamping plate, a roller, a cam, a rotating shaft and a screen mesh, wherein the first motor is arranged on one side of the inner bottom surface of the fixing frame, the first driving wheel is arranged on one side of the first motor, horizontal transverse plates are respectively arranged at the middle upper positions of the front side surface and the rear side surface of the fixing frame, a first-stage sieve plate is arranged above the transverse plates, second fixing seats are respectively arranged at the two sides of the top of the transverse plates, a third fixing shaft is arranged between the two second fixing seats, a rotating shaft is arranged in the third fixing shaft, connecting plates are respectively welded at the two ends of the rotating shaft, the first-stage sieve plate is fixedly connected between the two connecting plates, a clamping plate is fixedly arranged at the middle position of the side wall at the right side of the first-stage sieve plate, rollers are arranged in the clamping plate, a cam is arranged at one side of each roller, the cam is fixedly arranged at the middle position of the rotating shaft, the rollers are connected with the cam, first fixing seats are arranged at the right end positions of the two transverse plates, the rotating shaft is arranged on the two first fixing seats, the, the transverse plate is connected with the second-stage sieve plate in a sliding mode through a supporting rod, a second fixed shaft is arranged on the front side face of the second-stage sieve plate, a first fixed shaft is arranged on the first driving wheel, the first fixed shaft and the second fixed shaft are connected in a sliding mode through a connecting rod, a discharging plate is welded on the side wall of the fixed frame below the left side of the second-stage sieve plate, and a leakage-proof baffle is fixedly arranged at the right end of the discharging plate;

a conveying box is arranged on one side of the fixing frame, a discharging hole is formed in the right side of the bottom of the conveying box, conveying wheels are arranged at the top and the bottom of the conveying box respectively, the two conveying wheels are connected through a conveying belt, a plurality of partition plates are arranged on the conveying belt, a front side middle shaft of the lower conveying wheel penetrates through the side wall of the conveying box, a second driving wheel is arranged on the end face of the lower conveying wheel, a protective box is arranged at the bottom of the conveying box, a second motor is arranged on the left side of the interior of the protective box, the second driving wheel is arranged on the right side of the interior of the protective box, a second driving wheel is arranged on one side of the second motor, the output end of the second motor is;

the utility model discloses a fan, including the fan, the fan is connected with the one end of ventilation pipe, the air separator box sets up the top at the mount, and the right side wall of air separator box and the top intercommunication of conveying case, the inside of air separator box is equipped with the lower slide, the one end setting of lower slide is in air separator box and conveying case junction, the bottom intermediate position of lower slide is equipped with the support column, on the inner wall of support column welding air separator box, the left side below of lower slide is equipped with the shielding plate, the shielding plate is equipped with the ventilation pipe with the lower slide, and the air outlet of ventilation pipe is just to the shielding plate, the left side below position of shielding plate is equipped with the debris board, the back lateral wall that the debris board passed the air separator box stretches out the outside, the fixed fan.

As a further scheme of the invention: the both ends setting of pivot just with second fixing base sliding connection on the second fixing base, and the both ends position of third fixed axle has seted up the notch, and the bottom of connecting plate passes the inside welding of notch in the pivot, makes the one-level sieve remove about the completion under the effect of connecting plate through the rotation of pivot, realizes preliminary screening effect.

As a further scheme of the invention: the outside of pivot is equipped with fixed spring, and fixed spring's one end welding is in the pivot, and fixed spring's the other end welding is on the inner wall of third fixed axle, and when the one-level sieve moved left, the pivot took place to rotate for fixed spring takes place to deform, can apply reverse elasticity to the pivot after the one-level sieve moved left, makes the one-level sieve resume the normal position, realizes controlling the purpose.

As a further scheme of the invention: the inside of one-level sieve and second grade sieve all is equipped with the screen cloth, and the screen cloth adopts stainless steel material to make, and the second grade sieve places for the slope, has seted up the material export on the left lateral wall of second grade sieve, and the seed after the secondary screening is accomplished can be followed the left material outlet of second grade sieve and discharged under the effect of gravity, and the rubbish disintegrating slag falls the disintegrating slag collecting box from the screen cloth, and the workman of being convenient for handles.

As a further scheme of the invention: the centraxonial both ends of transfer gear set up on the lateral wall of transfer box, and be equipped with the bearing with the junction of transfer box, the even setting of baffle is on the conveyer belt and perpendicular with the conveyer belt, can put into the transfer box through the discharge gate with the seed that does not have the processing in, under the effect of baffle, transport it in the winnowing box, do not need artifical transport, labour saving and time saving.

As a further scheme of the invention: the left end of lower slide is less than the height of right-hand member, and the left end of shielding plate is equipped with ascending structure of slope, utilizes gravity, when the seed falls the shielding plate from the lower slide, can blow off the debris such as the light blade of sneaking into in the seed, avoids the seed to be blown away by wind simultaneously.

As a further scheme of the invention: the top both ends of debris board are equipped with the guard plate, and the guard plate is perpendicular with the debris board, and the rectangular channel has been seted up to the back lateral wall of winnowing box, and the one end of debris board passes the inside of rectangular channel and stretches out the winnowing box outside, can get rid of the winnowing box outside with debris such as light blade that wind-force blown off from the seed, and the guard plate at both ends debris board both ends falls the winnowing box inside once more when avoiding debris to discharge simultaneously.

As a further scheme of the invention: be equipped with the amortization layer on the inner wall of guard box, amortization cotton is filled to amortization in situ portion, can reduce the noise that the second motor during operation produced, avoids producing the influence to workman's work, improves the mill's environment.

As a further scheme of the invention: the round hole has been seted up to selection by winnowing box top surface intermediate position, and the position welding of round hole has the exhaust pipe on the selection by winnowing box, and the surface of exhaust pipe scribbles anticorrosive paint, and the exhaust pipe can avoid too big with timely getting rid of that the fan insufflates, avoids selection by winnowing box internal pressure, and the surface of exhaust pipe is scribbled anticorrosive paint and can be avoided its and air to take place the reaction, leads to corrosion damage, improves the life of device.

The invention has the beneficial effects that: the invention has novel structural design, the output end of a second motor drives a second driving wheel to rotate, a belt drives a second driving wheel to rotate, so that conveying belts on two conveying wheels rotate, untreated seeds are put into a conveying box through a discharge port and are conveyed into an air separation box under the action of a partition plate without manual conveying, time and labor are saved, the untreated seeds are conveyed from the conveying box to a lower sliding plate and slide onto a baffle plate under the action of gravity, meanwhile, a fan conveys air into a ventilation pipe to blow the falling seeds, so that light impurities mixed in the seeds are blown onto a impurity plate to be discharged, the output end of a first motor drives a first driving wheel to rotate, the belt drives the first driving wheel to rotate, a cam on a rotating shaft rotates, a first-stage sieve plate moves leftwards under the action of a roller, and when the first-stage sieve plate moves leftwards, the pivot takes place to rotate, make fixed spring take place to deform, can one-level sieve after the left hand movement, reverse elasticity is applyed to the pivot, make one-level sieve recovery normal position, the purpose of removal about the realization, the seed that will get rid of debris such as light blade carries out preliminary screening at one-level sieve, get rid of the debris of large granule, seed and disintegrating slag fall the second grade sieve from one-level sieve, when first action wheel rotates, connecting rod drive second grade sieve takes place horizontal reciprocating motion, sieve out the disintegrating slag from the second grade sieve, fall in the disintegrating slag collecting box, the workman of being convenient for handles, seed after the secondary screening is accomplished, improve workman's work efficiency, accomplish the separation of large granule or tiny particle disintegrating slag through dual screening, guarantee the quality of screening seed.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of a rotating shaft according to the present invention;

FIG. 4 is a view showing a cam and roller according to the present invention;

fig. 5 is a top view of a primary screen deck of the present invention;

FIG. 6 is an enlarged view of a portion A of the present invention;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, a dual-function seed screening device comprises a fixed frame 1, a discharging plate 2, a leakage-proof baffle 3, a supporting rod 4, a transverse plate 5, a crushed slag collecting box 6, a sundries plate 7, a baffle plate 8, an air separation box 9, a ventilation pipe 10, a supporting column 11, an exhaust pipe 12, a lower sliding plate 13, a conveying wheel 14, a conveying box 15, a baffle plate 16, a first driving wheel 17, a first fixed seat 18, a discharging port 19, a second driving wheel 20, a protective box 21, a second driving wheel 22, a second motor 23, a first motor 24, a first driving wheel 25, a first fixed shaft 26, a connecting rod 27, a second fixed shaft 28, a second-stage sieve plate 29, a third fixed shaft 30, a second fixed seat 31, a rotating shaft 32, a connecting plate 33, a first-stage sieve plate 34, a fixed spring 35, a fan 36, a clamping plate 37, a roller 38, a cam 39, a rotating shaft 40 and a screen 41, wherein, a first driving wheel 25 is arranged on one side of a first motor 24, the output end of the first motor 24 is in transmission connection with the first driving wheel 25, a slag collecting box 6 is arranged on one side of the first motor 24, horizontal transverse plates 5 are respectively arranged at the upper middle positions of the front side and the rear side of a fixed frame 1, a first-stage sieve plate 34 is arranged above the transverse plates 5, second fixed seats 31 are respectively arranged on two sides of the top of the transverse plates 5, a third fixed shaft 30 is arranged between the two second fixed seats 31, a rotating shaft 32 is arranged inside the third fixed shaft 30, connecting plates 33 are respectively welded at two ends of the rotating shaft 32, the first-stage sieve plate 34 is fixedly connected between the two connecting plates 33, a clamping plate 37 is fixedly arranged at the middle position of the side wall on the right side of the first-stage sieve plate 34, a roller 38 is arranged inside the clamping plate 37, a cam 39 is arranged, the relative sliding can be generated, when the protruding part of the cam 39 rotates to the position of the roller 38, the cam 39 applies a leftward driving force to the roller 38, so that the roller 38 moves leftward, the first-stage sieve plate 34 is pushed to move leftward by the clamping plate 37, the right end positions of the two transverse plates 5 are both provided with first fixing seats 18, the rotating shaft 40 is arranged on the two first fixing seats 18, the front end of the rotating shaft 40 passes through the first fixing seats 18, the end surface of the rotating shaft is provided with a first driving wheel 17, a second-stage sieve plate 29 is arranged below the transverse plate 5, the lateral surfaces of the transverse plates 5 below the second fixing seats 31 are respectively provided with a supporting rod 4, the transverse plate 5 is in sliding connection with the second-stage sieve plate 29 through the supporting rod 4, the front lateral surface of the second-stage sieve plate 29 is provided with a second fixing shaft 28, the first driving wheel 25 is provided with a first fixing shaft 26, the first fixing shaft 26, the right end of the discharging plate 2 is fixedly provided with a leakage-proof baffle 3, when the leakage-proof baffle is in operation, the output end of a first motor 24 drives a first driving wheel 25 to rotate, the first driving wheel 17 is driven to rotate through a belt, a cam 39 on a rotating shaft 40 is rotated, the first-stage sieve plate 34 is moved leftwards under the action of a roller 38, when the first-stage sieve plate 34 is moved leftwards, the rotating shaft 32 is rotated, a fixing spring 35 is deformed, after the left movement of the first-stage sieve plate 34 is finished, reverse elastic force is exerted on the rotating shaft 32, the first-stage sieve plate 34 is restored to the original position, the purpose of left and right movement is realized, seeds from which sundries such as light blades are removed are primarily screened on the first-stage sieve plate 34, large-particle sundries are removed, the seeds and crushed slag fall into the second-stage sieve plate 29 from the first-stage sieve plate 34, when the first, the seeds fall into the crushed slag collecting box 6 for convenient treatment, and the seeds after secondary screening can fall onto the discharging plate 2 from the material port on the left side of the secondary sieve plate 29 under the action of gravity, so that the seeds can be conveniently collected by workers;

a conveying box 15 is arranged on one side of the fixing frame 1, a discharge hole 19 is arranged at the right side of the bottom of the conveying box 15, conveying wheels 14 are respectively arranged at the top and the bottom of the conveying box 15, the two conveying wheels 14 are connected through a conveying belt, a plurality of partition plates 16 are arranged on the conveying belt, a second driving wheel 20 is arranged on the end face of the front side middle shaft of the lower conveying wheel 14, which penetrates through the side wall of the conveying box 15, a protective box 21 is arranged at the bottom of the conveying box 15, a second motor 23 is arranged on the left side inside the protective box 21, the second driving wheel 20 is arranged on the right side inside the protective box 21, a second driving wheel 22 is arranged on one side of the second motor 23, the output end of the second motor 23 is in transmission connection with the second driving wheel 22, the second driving wheel 22 is connected with the second driving wheel 20 through a belt, when in use, the output end of the, the conveying belts on the two conveying wheels 14 rotate, untreated seeds are placed into the conveying boxes through the discharging openings 19 and conveyed into the winnowing boxes 9 under the action of the partition plates 16, manual conveying is not needed, and time and labor are saved;

the winnowing box 9 is arranged at the top of the fixing frame 1, the right side wall of the winnowing box 9 is communicated with the top of the conveying box 15, a lower sliding plate 13 is arranged inside the winnowing box 9, one end of the lower sliding plate 13 is arranged at the joint of the winnowing box 9 and the conveying box 15, a support column 11 is arranged at the middle position of the bottom of the lower sliding plate 13, the support column 11 is welded on the inner wall of the winnowing box 9, a shielding plate 8 is arranged below the left side of the lower sliding plate 13, the shielding plate 8 and the lower sliding plate 13 are provided with a ventilation pipe 10, an air outlet of the ventilation pipe 10 is just opposite to the shielding plate 8, a sundry plate 7 is arranged below the left side of the shielding plate 8, the sundry plate 7 penetrates through the rear side wall of the winnowing box 9 and extends out to the outer side, a fan 36 is fixedly arranged on the rear side wall of the winnowing box 9, the fan 36 is connected with one end, under the action of gravity, the seeds slide down onto the shielding plate 8, meanwhile, the fan 36 conveys air into the ventilation pipe 10 to blow the falling seeds, light impurities mixed in the seeds are blown onto the impurity plate 7 to be discharged, the seeds screened by wind power fall onto the first-stage sieve plate 34 from the shielding plate 8, and air separation work is finished;

the both ends setting of pivot 32 on second fixing base 31 and with second fixing base 31 sliding connection, and the notch has been seted up to the both ends position of third fixed axle 30, and the bottom of connecting plate 33 passes the inside welding of notch on pivot 32, and rotation through pivot 32 makes one-level sieve 34 accomplish under the effect of connecting plate 33 and controls the removal, realizes preliminary screening effect.

The outside of pivot 32 is equipped with fixed spring 35, and the one end welding of fixed spring 35 is on pivot 32, and the other end welding of fixed spring 35 is on the inner wall of third fixed axle 30, and when one-level sieve 34 moved left, pivot 32 took place to rotate for fixed spring 35 takes place to deform, can apply reverse elasticity to pivot 32 after one-level sieve 34 moved left, makes one-level sieve 34 resume the normal position, realizes controlling the purpose.

The inside of one-level sieve 34 and second grade sieve 29 all is equipped with screen cloth 41, and screen cloth 41 adopts stainless steel material to make, and second grade sieve 29 places for the slope, has seted up the material export on the left lateral wall of second grade sieve 29, and the seed after the secondary screening is accomplished can be followed the left material export of second grade sieve 29 and discharged under the effect of gravity, and the rubbish disintegrating slag is gone out from screen cloth 41 and is fallen to disintegrating slag collecting box 6 in, the processing of being convenient for.

The both ends of 14 centraxonial settings of transfer gear are on the lateral wall of transfer box 15, and are equipped with the bearing with the junction of transfer box 15, and baffle 16 even setting is on the conveyer belt and perpendicular with the conveyer belt, can put into the transfer box through drain hole 19 the seed that does not have the processing, under the effect of baffle 16, transport it in winnowing box 9, do not need artifical transport, labour saving and time saving.

The left end of lower slide 13 is less than the height of right-hand member, and the left end of shielding plate 8 is equipped with ascending structure of sheltering from, utilizes gravity, when the seed falls shielding plate 8 from lower slide 13, can blow off debris such as the light blade of sneaking into in the seed, avoids the seed to be blown away by wind simultaneously.

The top both ends of debris board 7 are equipped with the guard plate, and the guard plate is perpendicular with debris board 7, and the rectangular channel has been seted up to the back lateral wall of wind-break box 9, and the one end of debris board 7 is passed the inside in rectangular channel and is stretched out the wind-break box 9 outside, can get rid of the wind-break box 8 outside with debris such as light blade that wind-force blew off from the seed, and the guard plate at both ends debris board 7 both ends falls once more inside the wind-break box 9 when avoiding debris to discharge simultaneously.

Be equipped with the amortization layer on the inner wall of guard box 21, amortization cotton is filled to amortization in situ portion, can reduce the noise that second motor 23 during operation produced, avoids producing the influence to workman's work, improves the mill's environment.

The round hole has been seted up to 9 top surfaces of winnowing box, and the position welding of round hole has exhaust pipe 12 on winnowing box 9, and the surface of exhaust pipe 12 scribbles anticorrosive paint, and exhaust pipe 12 can avoid 36 blowings in time getting rid of fan, avoids winnowing box 36 internal pressure too big, and the surface of exhaust pipe 12 is scribbled anticorrosive paint and can be avoided its and air to take place the reaction, leads to corrosion damage, improves the life of device.

The working principle of the invention is as follows: when the invention is used, the output end of the second motor 23 drives the second driving wheel 22 to rotate, the second driving wheel 20 is driven to rotate by the belt, so that the conveying belts on the two conveying wheels 14 rotate, untreated seeds are put into the conveying boxes through the discharge port 19 and conveyed into the winnowing box 9 under the action of the partition plate 16, manual carrying is not needed, time and labor are saved, the untreated seeds are conveyed onto the lower sliding plate 13 from the conveying box 15 and slide onto the shielding plate 8 under the action of gravity, meanwhile, the fan 36 conveys air into the ventilation pipe 10 to blow the falling seeds, light impurities mixed in the seeds are blown onto the impurity plate 7 to be discharged, the seeds screened by wind power fall onto the first-stage sieve plate 34 from the shielding plate 8, the output end of the first motor 24 drives the first driving wheel 25 to rotate, the first driving wheel 17 is driven by the belt to rotate, so that the cam 39 on the rotating shaft 40 rotates, under the action of the rollers 38, the first-stage screen deck 34 moves to the left, and when the first-stage screen deck 34 moves to the left, the rotating shaft 32 rotates, so that the fixed spring 35 deforms, after the first-stage sieve plate 34 moves leftwards, the reverse elasticity is applied to the rotating shaft 32, so that the first-stage sieve plate 34 is restored to the original position, the purpose of moving left and right is realized, the seeds without impurities such as light blades and the like are primarily screened on the first-stage sieve plate 34, the impurities with large particles are removed, the seeds and crushed slag fall into the second-stage sieve plate 29 from the first-stage sieve plate 34, when the first driving wheel 25 rotates, the connecting rod 27 drives the second-stage sieve plate 29 to reciprocate left and right, so that the crushed slag is sieved out of the second-stage sieve plate 29 and falls into the crushed slag collecting box 6, the treatment is convenient, the seeds after the secondary screening are finished, can fall to the play flitch 2 from the left thing mouth of second grade sieve 29 under the effect of gravity on, the workman of being convenient for collects.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. Dual-function seed screening equipment is characterized by comprising a fixing frame (1), a discharge plate (2), a leakage-proof baffle plate (3), a supporting rod (4), a transverse plate (5), a crushed slag collecting box (6), a sundry plate (7), a baffle plate (8), an air separation box (9), a ventilating pipe (10), a supporting column (11), an exhaust pipe (12), a lower sliding plate (13), a conveying wheel (14), a conveying box (15), a partition plate (16), a first driving wheel (17), a first fixing seat (18), a discharge hole (19), a second driving wheel (20), a protection box (21), a second driving wheel (22), a second motor (23), a first motor (24), a first driving wheel (25), a first fixing shaft (26), a connecting rod (27), a second fixing shaft (28), a second-stage sieve plate (29), a third fixing shaft (30), a second fixing seat (31), The device comprises a rotating shaft (32), a connecting plate (33), a first-stage sieve plate (34), a fixing spring (35), a fan (36), a clamping plate (37), a roller (38), a cam (39), a rotating shaft (40) and a screen (41), wherein a first motor (24) is arranged on one side of the inner bottom surface of the fixing frame (1), a first driving wheel (25) is arranged on one side of the first motor (24), the output end of the first motor (24) is in transmission connection with the first driving wheel (25), a crushed slag collecting box (6) is arranged on one side of the first motor (24), horizontal transverse plates (5) are respectively arranged at the upper middle positions of the front side and the rear side of the fixing frame (1), the first-stage sieve plate (34) is arranged above the transverse plates (5), second fixing seats (31) are respectively arranged on two sides of the top of the transverse plates (5), a third fixing shaft (30) is arranged between the two second fixing seats, the two ends of the rotating shaft (32) are respectively welded with connecting plates (33), a first-stage sieve plate (34) is fixedly connected between the two connecting plates (33), a clamping plate (37) is fixedly arranged at the middle position of the side wall on the right side of the first-stage sieve plate (34), rollers (38) are arranged inside the clamping plate (37), a cam (39) is arranged on one side of each roller (38), the cam (39) is fixedly arranged at the middle position of a rotating shaft (40), the rollers (38) are connected with the cam (39), first fixing seats (18) are respectively arranged at the right end positions of the two transverse plates (5), the rotating shaft (40) is arranged on the two first fixing seats (18), the front end of the rotating shaft (40) penetrates through the first fixing seats (18), a first driving wheel (17) is arranged on the end face of the rotating shaft, a second-stage sieve plate (29) is arranged below the transverse plate (5), the transverse plate (5) is connected with the second-stage sieve plate (29) in a sliding mode through a supporting rod (4), a second fixing shaft (28) is arranged on the front side face of the second-stage sieve plate (29), a first fixing shaft (26) is arranged on a first driving wheel (25), the first fixing shaft (26) is connected with the second fixing shaft (28) in a sliding mode through a connecting rod (27), a discharging plate (2) is welded on the side wall of the fixing frame (1) below the left side of the second-stage sieve plate (29), and a leakage-proof baffle plate (3) is fixedly arranged at the right end of the discharging plate (2);

a conveying box (15) is arranged on one side of the fixing frame (1), a discharging hole (19) is formed in the right side position of the bottom of the conveying box (15), conveying wheels (14) are respectively arranged at the top and the bottom of the conveying box (15), the two conveying wheels (14) are connected through a conveying belt, a plurality of partition plates (16) are arranged on the conveying belt, a second driving wheel (20) is arranged on the end face of the middle shaft of the front side of the lower conveying wheel (14) and penetrates through the side wall of the conveying box (15), a protection box (21) is arranged at the bottom of the conveying box (15), a second motor (23) is arranged on the left side of the inside of the protection box (21), the second driving wheel (20) is arranged on the right side of the inside of the protection box (21), a second driving wheel (22) is arranged on one side of the second motor (23), the output end of the second motor (23) is in transmission connection with the second driving wheel (;

the utility model discloses a fan, including air separation box (9), conveying box (15), bottom slide plate (13), baffle plate (8) and bottom slide plate (13) are equipped with ventilation pipe (10), and the air outlet of ventilation pipe (10) is just to baffle plate (8), baffle plate (8) are equipped with debris plate (7) to the left side below position of baffle plate (8), debris plate (7) pass the back lateral wall of air separation box (9) and stretch out to the outside, fixed fan (36) that is equipped with on the back lateral wall of air separation box (9), the fan (36) is connected with one end of the ventilation pipe (10), and the top of the winnowing box (9) is fixedly provided with an exhaust pipe (12).

2. The dual-function seed screening apparatus according to claim 1, wherein two ends of the rotating shaft (32) are disposed on the second fixing base (31) and slidably connected to the second fixing base (31), two ends of the third fixing shaft (30) are provided with notches, and a bottom end of the connecting plate (33) penetrates through the notches and is welded to the rotating shaft (32).

3. The dual function seed screening apparatus of claim 1, wherein a fixing spring (35) is provided at an outer side of the rotation shaft (32), one end of the fixing spring (35) is welded to the rotation shaft (32), and the other end of the fixing spring (35) is welded to an inner wall of the third fixing shaft (30).

4. The dual-function seed screening apparatus of claim 1, wherein the first-stage sieve plate (34) and the second-stage sieve plate (29) are both provided with a screen (41), the screen (41) is made of stainless steel, the second-stage sieve plate (29) is placed in an inclined manner, and a material outlet is formed in a side wall of the left side of the second-stage sieve plate (29).

5. The dual-function seed screening apparatus of claim 1, wherein the two ends of the central shaft of the conveying wheel (14) are arranged on the side wall of the conveying box (15), the connecting part of the central shaft and the conveying box (15) is provided with a bearing, and the partition plate (16) is uniformly arranged on the conveying belt and is vertical to the conveying belt.

6. The dual function seed screening apparatus of claim 1, wherein the left end of the lower slide plate (13) is lower than the right end in height, and the left end of the shielding plate (8) is provided with a shielding structure inclined upward.

7. The dual-function seed screening apparatus according to claim 1, wherein the top ends of the sundries plate (7) are provided with protection plates, the protection plates are perpendicular to the sundries plate (7), the rear side wall of the winnowing box (9) is provided with a rectangular groove, and one end of the sundries plate (7) penetrates through the inside of the rectangular groove and extends out of the winnowing box (9).

8. The dual function seed screening apparatus of claim 1, wherein the inner wall of the protective box (21) is provided with a sound deadening layer, and sound deadening cotton is filled inside the sound deadening layer.

9. The dual-function seed screening apparatus of claim 1, wherein a circular hole is formed in the middle of the top surface of the winnowing box (9), an exhaust pipe (12) is welded above the circular hole on the winnowing box (9), and an anticorrosive paint is coated on the outer surface of the exhaust pipe (12).