阅读说明：本技术 土豆收获机 (Potato harvester ) 是由 应瑶琪 于 2019-11-05 设计创作，主要内容包括：本发明提供了一种土豆收获机,包括设有导风口的机架,所述的机架一侧设置有风扇装置,所述的风扇装置上连接有泥土清理装置,所述的泥土清理装置前端设置有筛选装置,所述的筛选装置下方设置有收料装置,所述的收料装置下方设置有车轮装置,且所述的车轮装置一侧连接所述的泥土清理装置；所述的安装座一侧有铲板装置,所述的铲板装置上方设置有气缸,所述的气缸的一侧设置有运行槽,所述的运行槽两侧设有推板装置,本发明提供的一种土豆收获机,利用简易的泥土清理装置、筛选装置以及风扇装置相互配合,实现了对土豆按大小进项筛选,且吹走土豆内的部分异物。(The invention provides a potato harvester which comprises a rack with an air guide opening, wherein a fan device is arranged on one side of the rack, a soil cleaning device is connected onto the fan device, a screening device is arranged at the front end of the soil cleaning device, a material receiving device is arranged below the screening device, a wheel device is arranged below the material receiving device, and one side of the wheel device is connected with the soil cleaning device; the potato harvester provided by the invention realizes screening potatoes according to different sizes by utilizing the mutual cooperation of the simple soil cleaning device, the screening device and the fan device, and blows away partial foreign matters in the potatoes.)

1. The utility model provides a potato harvester, is including frame (1) that is equipped with wind-guiding mouth (1 a), its characterized in that: a mounting seat (11) is arranged on one side of the rack (1), a fan device (2) is mounted on the mounting seat (11), the fan device (2) is connected with a motor (A) through a coupler (A1), the fan device (2) is connected with an earth cleaning device (3) through a first transmission chain (a), a screening device (4) is arranged at the front end of the earth cleaning device (3), a material receiving device (5) is arranged below the screening device (4), a wheel device (6) is arranged below the material receiving device (5), and the wheel device (6) is connected with the earth cleaning device (3) through a second transmission chain (b); mount pad (11) one side be provided with feed inlet (13), feed inlet (13) on be connected with shovel board device (7) through hinge post (14), shovel board device (7) top be provided with cylinder (15), just cylinder (15) fixed mounting in frame (1) top, one side of cylinder (15) be provided with chute (16), chute (16) both sides face be provided with spout (17), spout (17) in install push pedal device (8).

2. A potato harvester as in claim 1, wherein: the fan device (2) comprises a rotating shaft (21) movably connected with the mounting seat (11), an air guide fan (22) is fixedly connected to the front section of the rotating shaft (21), a first gear (23) is arranged on one side of the air guide fan (22), and the first gear (23) is fixedly connected to the rotating shaft (21).

3. A potato harvester according to claim 2, characterized in that: earth cleaning device (3) include through first driving chain (a) with first gear (23) second gear (31) that link to each other, just second gear (31) fixed mounting in worm (32) one side, worm (32) opposite side be provided with third gear (33), worm (32) on still be provided with first teeth of a cogwheel (32 a), first teeth of a cogwheel (32 a) top be equipped with clearance subassembly mounting bracket (35) of taking swash plate (34), clearance subassembly mounting bracket (35) on movable mounting have a plurality of clearance subassemblies (Q).

4. A potato harvester according to claim 3, characterized in that: cleaning assembly (Q) including movable mounting in cleaning assembly mounting bracket (35) on clearance axle (Q1), clearance axle (Q1) on be equipped with a plurality of pappus brushes (Q2), clearance axle (Q1) one side install with first teeth of a cogwheel (32 a) intermeshing's fourth gear (Q3).

5. A potato harvester according to claim 3, characterized in that: sieving mechanism (4) include with screening frame (41) that clearance subassembly mounting bracket (34) link to each other, screening frame (41) on admittedly be equipped with a plurality of spacer bars (42), spacer bar (42) between be provided with from earth cleaning device (3) to screening mechanism (4) direction diameter ladder pole subassembly (43) that gradually reduce, ladder pole subassembly (43) include left branch pole (43 a) and right branch pole (43 b), and from earth cleaning device (3) to screening mechanism (4) direction left branch pole (43 a) and right branch pole (43 b) between the distance crescent.

6. A potato harvester as in claim 1, wherein: the material receiving device (5) comprises a material receiving box (51) arranged on the mounting plate (12), slide rails (52) are arranged on two sides of the material receiving box (51), a cylindrical groove (52 a) is formed in the tail end of each slide rail (52), a screw running groove (53) is further formed in one side of each slide rail (52), and a partition plate assembly (G) is arranged in each screw running groove (53) through a locking screw (54).

7. A potato harvester according to claim 6, characterized in that: the partition plate assembly (G) comprises a sliding block (G1) matched with the sliding rail (52), the front end of the sliding block (G1) is provided with a ball body (G2) matched with the cylindrical groove (52 a), the tail end of the sliding block (G1) is provided with a fixing plate (G3), and a partition plate (G4) is arranged on the fixing plate (G3).

8. A potato harvester according to claim 3, characterized in that: the wheel device (6) comprises a plurality of wheel assemblies (6 a) arranged at the lower end of the rack (1), the wheel assemblies (6 a) are connected through a transmission belt (6 b), each wheel assembly (6 a) comprises a wheel shaft (61) movably arranged on the rack (1), a fifth gear (62) connected with the third gear (33) through a second transmission chain (b) is arranged on each wheel shaft (61), and wheels (63) with the same structure are arranged on two sides of each wheel shaft (61).

9. A potato harvester as in claim 1, wherein: shovel board device (7) including install in articulated post (14) on shovel board (71), shovel board (71) on be provided with a plurality of hourglass husky mouth (72), shovel board (71) front end be provided with arc shovel (73), shovel board (71) both sides still be provided with and prevent falling board (74).

10. A potato harvester as in claim 1, wherein: push pedal device (8) include with spout (17) sliding column (81) that mutually support, sliding column (81) ring surface on be equipped with running groove (16) first connecting rod (82) that mutually support, first connecting rod (82) lower extreme be equipped with installation storehouse (83), installation storehouse (83) in be connected with second connecting rod (85) through elastic component (84), second connecting rod (85) lower extreme be connected with push pedal (86), second connecting rod (85) on be provided with the perpendicular to second connecting rod (85) press depression bar (87), press depression bar (87) be close to screening device (4) one end below be provided with the central axis and press depression bar (87) central axis mutually perpendicular's horizontal pole (88).

Technical Field

The invention belongs to the technical field of agricultural product harvesting equipment and agricultural science and technology, and particularly relates to a potato harvester.

Background

Potato harvesters typically utilize a rotating digging implement to scoop the potatoes, potato seedlings, and soil with a digging shovel. Along with the forward operation of machines, the potato of shovel, potato seedling and earth are carried and are carried the separator top, and separator produces orderly shake owing to shake the continuous rotation of device to realize the potato separation.

For example, chinese patent literature discloses a potato harvester [ application No.: 201811441663.1 ] comprising two racks forming a working space therebetween; a bucket part, an elevating part and a fertilizer applicator are arranged in the working space; the shovel part is fixed at the front end of the frame and used for shoveling potatoes in ridges, and the rear end of the shovel part is in contact with the lifting part; the fertilizer applicator comprises a feed box, a spray pipe and a main control board; the feed box is arranged on the rack and used for storing fertilizer; the spray pipe is arranged at one end of the bottom of the bucket part close to the chain wheel assembly; the bottom of the spray pipe is provided with a plurality of electromagnetic spray heads along the length direction; the electromagnetic spray head is communicated with the material box through a hose; the main control board is electrically connected with the electromagnetic spray head and used for opening and closing the electromagnetic spray head.

According to the potato harvester in the scheme, although base fertilizer is applied to cultivated land while potatoes are harvested, the motor is low in working efficiency, and the unqualified potatoes or foreign matters in the potatoes cannot be effectively separated.

Disclosure of Invention

The invention aims to solve the problems and provides a potato harvester which realizes screening potatoes according to different sizes and blows away partial foreign matters in the potatoes by utilizing the mutual cooperation of a simple soil cleaning device, a screening device and a fan device.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a potato harvester, is including the frame that is equipped with the wind-guiding mouth, its characterized in that: a mounting seat is arranged on one side of the rack, a fan device is mounted on the mounting seat and connected with a motor through a coupling, the fan device is connected with an earth cleaning device through a first transmission chain, a screening device is arranged at the front end of the earth cleaning device, a material receiving device is arranged below the screening device, a wheel device is arranged below the material receiving device, and the wheel device is connected with the earth cleaning device through a second transmission chain; mount pad one side be provided with the feed inlet, the feed inlet on be connected with the shovel board device through the hinge post, shovel board device top be provided with the cylinder, just cylinder fixed mounting in frame top, one side of cylinder be provided with the chute, chute both sides face be provided with the spout, the spout in install the push pedal device.

Preferably, the fan device includes a rotating shaft movably connected to the mounting base, a wind guiding fan is fixedly connected to a front section of the rotating shaft, a first gear is disposed on one side of the wind guiding fan, and the first gear is fixedly connected to the rotating shaft.

As preferred, earth cleaning device include through first driving chain with the second gear that first gear links to each other, just second gear fixed mounting in worm one side, the worm opposite side be provided with the third gear, the worm on still be provided with first teeth of a cogwheel, first teeth of a cogwheel top be equipped with the clearance subassembly mounting bracket of taking the swash plate, clearance subassembly mounting bracket on movable mounting have a plurality of clearance subassemblies.

Preferably, the cleaning assembly comprises a cleaning shaft movably mounted on the cleaning assembly mounting frame, a plurality of soft brushes are arranged on the cleaning shaft, and a fourth gear meshed with the first gear teeth is mounted on one side of the cleaning shaft.

Preferably, the screening device include with the screening frame that clearance subassembly mounting bracket link to each other, the screening frame on adorn a plurality of spacer bars admittedly, the spacer bar between be provided with from earth cleaning device to the ladder pole subassembly that screening device direction diameter reduces gradually, the ladder pole subassembly include left branch pole and right branch pole, and from earth cleaning device to screening device direction between left branch pole and the right branch pole distance crescent.

Preferably, the material receiving device comprises a material receiving box fixedly mounted on the mounting plate, slide rails are arranged on two sides of the material receiving box, a cylindrical groove is formed in the tail end of each slide rail, a screw running groove is further formed in one side of each slide rail, and a partition plate assembly is mounted in each screw running groove through a locking screw.

Preferably, the partition plate assembly comprises a sliding block matched with the sliding rail, a ball matched with the cylindrical groove is arranged at the front end of the sliding block, a fixing plate is arranged at the tail end of the sliding block, and a partition plate is arranged on the fixing plate.

Preferably, the wheel device comprises a plurality of wheel assemblies which are arranged at the lower end of the rack and connected through a transmission belt, each wheel assembly comprises a wheel shaft which is movably arranged on the rack, a fifth gear which is connected with the third gear through a second transmission chain is arranged on each wheel shaft, and wheels with the same structure are arranged on two sides of each wheel shaft.

Preferably, the shovel board device including install in the articulated post on the shovel board, the shovel board on be provided with a plurality of hourglass husky mouths, the shovel board front end be provided with the arc shovel, shovel board both sides still be provided with and prevent the board that falls.

Preferably, the push plate device comprises a sliding column matched with the sliding groove, a first connecting rod matched with the running groove is arranged on the annular surface of the sliding column, an installation bin is arranged at the lower end of the first connecting rod, a second connecting rod is connected in the installation bin through an elastic piece, a push plate is connected at the lower end of the second connecting rod, a pressing rod perpendicular to the second connecting rod is arranged on the second connecting rod, and a cross rod with a central axis perpendicular to the central axis of the pressing rod is arranged below one end, close to the screening device, of the pressing rod.

Compared with the prior art, the invention has the advantages that:

1. the fan device, the soil cleaning device and the wheel device are linked through the simple transmission mechanism, so that the use efficiency of the motor is improved.

2. The soil cleaning device provided by the invention cleans soil on the surface of the potatoes by utilizing friction force generated between the rotation of the soft hairbrush and the potatoes, and the design can clean the potatoes and avoid the damage of the potato skins.

3. The material receiving device and the screening device are matched with each other, so that the potatoes are distinguished according to the sizes of the potatoes, and the screening of the potatoes is completed.

Drawings

Fig. 1 is a structural view of a potato harvester provided by the present invention.

FIG. 2 is a connection structure diagram of the moving components of the potato harvester provided by the invention.

Fig. 3 is a partial cross-sectional view of a potato harvester provided with the present apparatus.

Fig. 4 is a structural view of a push plate device provided in the present device.

Fig. 5 is a three-dimensional sectional view of the material receiving device provided by the invention.

In the figure, a machine frame 1, an air guide opening 1a, a mounting seat 11, a feed opening 13, an articulated column 14, an air cylinder 15, an operation groove 16, a sliding groove 17, a first transmission chain a, a second transmission chain b, a coupling A1, a motor A, a fan device 2, a rotating shaft 21, an air guide fan 22, a first gear 23, a soil cleaning device 3, a second gear 31, a worm 32, a third gear 33, a first gear tooth 32a, a sloping plate 34, a cleaning component mounting frame 35, a cleaning component Q, a cleaning shaft Q1, a soft brush Q2, a fourth gear Q3, a screening device 4, a screening frame 41, a separating rod 42, a step rod component 43, a left support rod 43a, a right support rod 43b, a material receiving device 5, a material receiving box 51, a sliding rail 52, a cylindrical groove 52a, a screw groove 53, a locking screw 54, a partition plate component G, a slider G1, a G sphere 2, a fixing plate G3, a partition plate G4, a wheel device 6a driving belt, The device comprises a wheel shaft 61, a fifth gear 62, wheels 63, a shovel plate device 7, a shovel plate 71, a sand leakage opening 72, an arc-shaped shovel 73, a drop-preventing plate 74, a push plate device 8, a sliding column 81, a first connecting rod 82, a mounting bin 83, an elastic piece 84, a second connecting rod 85, a push plate 86, a pressing rod 87 and a cross rod 88.

Detailed Description

As shown in fig. 1, 2, 3 and 4, a potato harvester comprises a frame 1 with an air guide opening 1a, the frame 1 in the device can be n-shaped, a top plate d is arranged on the upper side, the periphery of the frame 1 is open, two corresponding side surfaces of the frame 1 are provided with opposite air guide openings 1a (the central axis of a fan device 2 is perpendicular to the air guide opening 1 a), two other corresponding side surfaces of the frame 1 are respectively provided with a feed opening 13 and a discharge opening c arranged on one side of a material receiving device 5, one side of the frame 1 is provided with a mounting seat 11, the mounting seat 11 is provided with a fan device 2, the fan device 2 is connected with a motor a through a coupling A1, the air guide opening 1a in the device is arranged on one side surface of the frame 1, the mounting seat 11 is welded at the middle position of the air guide opening 1a, the fan device 2 is movably mounted on the mounting, the motor A is fixedly arranged on a boss on one side of the air guide opening 1a, the fan device 2 is connected with an earth cleaning device 3 through a first transmission chain a, the front end of the earth cleaning device 3 is provided with a screening device 4, a material receiving device 5 is arranged below the screening device 4, the material receiving device 5 in the device can be arranged on a bearing plate welded below the rack 1, the material receiving device 5 is placed on the bearing plate, one side of the material receiving device 5 can be provided with a handle to be taken out conveniently, a wheel device 6 is arranged below the material receiving device 5, and the wheel device 6 is connected with the earth cleaning device 3 through a second transmission chain b; one side of the mounting seat 11 is provided with a feeding hole 13, the horizontal width W1 of the feeding hole 13 in the device is set to be 85% -95% of the width W of the frame 1, the height H1 of the feeding hole can be set to be 75% -85% of the height of the frame 1, the feeding hole 13 is connected with a shovel plate device 7 through a hinge post 14, the hinge post 14 in the device is welded on the frame 1, an air cylinder 15 is arranged above the shovel plate device 7, the air cylinder 15 is fixedly arranged above the frame 1, one side of the air cylinder 15 is provided with an operation groove 16, two side surfaces of the operation groove 16 are provided with sliding grooves 17, a push plate device 8 is arranged in the sliding groove 17, the operation groove 16 in the device is arranged on a top plate d, the length of the operation groove 16 is set to be 80% -90% of the length L of the frame 1 (can be set to be the sum of the total length of the soil cleaning device 3, the length of runner 17 may be the same as the length of running groove 16, the width of runner 17 may be set to 150% to 200% of the width of running groove 16, and the circular diameter of both sides of runner 17 (i.e., the height of runner 17) may be set to 3 to 8 cm.

Specifically, the fan device 2 includes a rotating shaft 21 movably connected to the mounting base 11, the rotating shaft 21 in the device is movably mounted on the mounting base 11 by using a bearing, an air guiding fan 22 is fixedly connected to a front section of the rotating shaft 21, a welding manner is adopted for fixedly connecting the air guiding fan 22 and the rotating shaft 21, a first gear 23 is arranged on one side of the air guiding fan 22, the first gear 23 is fixedly connected to the rotating shaft 21, and a key groove are adopted for connecting the first gear 23 and the rotating shaft in the device.

Further, the soil cleaning device 3 comprises a second gear 31 connected with the first gear 23 through a first transmission chain a, basic parameters of the first gear 23 and the second gear 31 in the device can be set to be consistent, the second gear 31 is fixedly installed on one side of a worm 32, a third gear 33 is arranged on the other side of the worm 32, a first gear tooth 32a is further arranged on the worm 32, the modes of the second gear 31, the worm 32 and the third gear 33 and the worm 32 in the device are both in a key and key groove mode, a cleaning component mounting frame 35 with a sloping plate 34 is arranged above the first gear tooth 32a, the cleaning component mounting frame 35 in the device can be set to be in a rectangular frame shape, the sloping plate 34 is welded at one end of the cleaning component mounting frame 35, the inclination angle of the sloping plate 34 can be set to be 30-45 degrees, a plurality of cleaning components Q are movably installed on the cleaning component mounting frame 35, 4-6 cleaning components Q in the device can be arranged (the cleaning components Q can be arranged according to the size of the cleaning device 3 Set up).

Furthermore, the cleaning component Q comprises a cleaning shaft Q1 movably mounted on the cleaning component mounting frame 35 by a bearing, a plurality of soft brushes Q2 are arranged on the cleaning shaft Q1, a fourth gear Q3 meshed with the first gear teeth 32a is mounted on one side of the cleaning shaft Q1, the soft brushes Q2 in the device can be made of fiber soft materials, the soft brushes Q2 can be adhered to the circular ring surface of the cleaning shaft Q1, the fourth gear Q3 is mounted on one side of the cleaning shaft Q1 by a keyway, and the fourth gear Q3 is arranged under the inclined plate 34.

Further, the screening device 4 comprises a screening frame 41 connected with the cleaning component mounting frame 34, a plurality of separating rods 42 are fixedly arranged on the screening frame 41, the screening frame 41 and the cleaning component mounting frame 34 in the device are connected in a welding mode, the screening frame 41 can also be arranged in a rectangular frame shape, the separating rods 42 are welded on the screening frame 41, the screening frame 41 is divided into a plurality of areas with equal areas by the separating rods 42, a step rod assembly 43 with the diameter gradually reduced from the soil cleaning device 3 to the screening device 4 is arranged between the separating rods 42, the step rod assembly 43 comprises a left supporting rod 43a and a right supporting rod 43b, the distance between the left supporting rod 43a and the right supporting rod 43b is gradually increased from the soil cleaning device 3 to the screening device 4, the step rod assembly 43 in the device is arranged in the area divided by the separating rods 42, the left supporting rod 43a and the right supporting rod 43b in the device are arranged on the screening frame 41, the installation mode can adopt the mode of swing joint or fixed connection (welding), and the swing joint can be with setting up the spring in left branch 43a and right branch 43b middle section, set up the fixture block at both ends, set up the draw-in groove on screening frame 41 again, utilize spring, fixture block and draw-in groove cooperation mode to set up to releasable connection, then can freely set for the interval between left branch 43a and the right branch 43b according to the demand.

Specifically, the material receiving device 5 comprises a material receiving box 51 arranged on the mounting plate 12, slide rails 52 are arranged on two sides of the material receiving box 51, a cylindrical groove 52a is arranged at the tail end of the slide rail 52, a screw running groove 53 is further arranged on one side of the slide rail 52, a partition plate assembly G is arranged in the screw running groove 53 through a locking screw 54, the material receiving box 51 in the device is arranged under the screening frame 41, the size of the material receiving box 51 is consistent with that of the screening frame 41, the partition plate assembly G is arranged in the material receiving box 51, the central axis of the partition plate assembly G is perpendicular to that of the partition rod 42, the width of the slide rail 52 in the device is 50% -60% of the thickness of the material receiving box 51, the depth of the slide rail 52 is 70% -80% of the thickness of the material receiving box 51, the diameter of the cylindrical groove 52a is 105% -110% of the width of the slide rail 52 (smaller than, the depth of the screw running groove 53 can be set to be 3-5 cm, and the locking screw 54 is matched with the screw running groove 53.

Furthermore, the partition plate assembly G comprises a sliding block G1 matched with the sliding rail 52, the front end of the sliding block G1 is provided with a ball G2 matched with the cylindrical groove 52a, the tail end of the sliding block G1 is provided with a fixing plate G3, a partition plate G4 is arranged on the fixing plate G3, a sliding block G1 in the device is matched with the sliding rail 52, the ball G2 is matched with the cylindrical groove 52a, the partition plate G4 is welded on the fixing plate G3, the thickness of the fixing plate G3 can be set to be 5-10 cm, in addition, the length L1 of the partition plate G4 is kept consistent with the length L of the inner cavity of the material receiving box 51, the length of the fixing plate G3 is kept consistent with the width of the material receiving box 51, and the length L of the inner.

Specifically, the wheel device 6 comprises a plurality of wheel assemblies 6a mounted at the lower end of the frame 1, the wheel assemblies 6a are connected through a transmission belt 6b, the wheel assemblies 6a comprise wheel shafts 61 movably mounted on the frame 1, fifth gears 62 connected with the third gears 33 through second transmission chains b are mounted on the wheel shafts 61, wheels 63 with the same structure are further arranged on two sides of the wheel shafts 61, and the mounting mode between the gears and the shafts in the invention adopts keys and key slots.

Specifically, the shovel plate device 7 includes a shovel plate 71 installed on the hinge post 14, a plurality of sand leakage openings 72 are formed in the shovel plate 71, an arc-shaped shovel 73 is arranged at the front end of the shovel plate 71, and anti-falling plates 74 are further arranged on two sides of the shovel plate 71.

Specifically, the push plate device 8 includes a sliding column 81 mutually matched with the sliding chute 17, the size of the sliding column 81 in the device is set according to the size of the sliding chute 17, the matching between the sliding chute 17 and the sliding column 81 adopts clearance fit, a first connecting rod 82 mutually matched with the running groove 16 is arranged on the circular ring surface of the sliding column 81, an installation bin 83 is arranged at the lower end of the first connecting rod 82, a second connecting rod 85 is connected in the installation bin 83 through an elastic piece 84, a push plate 86 is connected at the lower end of the second connecting rod 85, a pressing rod 87 vertical to the second connecting rod 85 is arranged on the second connecting rod 85, a cross rod 88 with a central axis vertical to the central axis of the pressing rod 87 is arranged below one end of the pressing rod 87 close to the screening device 4, a limit block is arranged at the front end of the installation bin 83 in the device, the elastic piece 84 can be set as a spring or a shrapnel, the upper, the lower extreme welding of elastic component 84 is at the lower extreme of second connecting rod 85, presses the welding of pole 87 on second connecting rod 85 ring surface, presses the length of pole 87 to set up 120% ~ 150% of earth cleaning device 3 and sieving mechanism 4 length sum, and in addition, horizontal pole 88 welds on frame 1, and in addition, push pedal device 8 can adopt the plastics of light or the rubber material preparation, and the manual work of being convenient for is mentioned.

The working principle is as follows: loosening the locking screw 54, pushing the partition plate G4, dividing the material receiving box 51 into proper sizes, placing the product in the ground, turning on the motor A, driving the rotating shaft 21 to rotate by the motor A, further driving the air guiding fan 22 and the first gear 23 which are arranged on the rotating shaft 21 to rotate, generating air flow by the air guiding fan 22 in the operation process to blow light foreign matters such as plant residues on potatoes on the soil cleaning device 3, driving the second gear 31 to rotate by the first gear 23 through the first transmission chain a, driving the worm 32 to rotate by the first gear 31, driving the fourth gear Q3 which is meshed with the worm 32 to rotate, further driving the cleaning shaft Q1 to rotate, enabling the soft brush Q2 arranged on the cleaning shaft Q1 to rub soil on the potatoes to complete cleaning of the surfaces of the potatoes, simultaneously, driving the third gear 33 arranged on the worm 32 to rotate, driving the fifth gear 62 to rotate by the third gear 33 through the second transmission chain b, further driving the wheel device 6 to operate, thereby driving the device to move forward, during the process of moving forward, the shovel plate 71 digs potatoes in the ground and digs the potatoes together with soil, meanwhile, the cylinder 15 is driven by an external hydraulic device, the telescopic rod of the cylinder 15 moves up and down, when the telescopic rod moves down, the shovel plate 71 is pressed, the shovel plate 71 moves up (lever principle), when the shovel plate 71 is pressed to an extreme position, the potatoes on the shovel plate 71 fall onto the inclined plate 34 under the action of gravity and further fall onto the cleaning component Q, and are cleaned by the cleaning device Q, meanwhile, the pressing rod 87 is manually pulled horizontally, the first connecting rod 81 (sliding column 81) moves in the operating groove 16 (sliding groove 17), further driving the push plate 86 arranged below the second connecting rod 85 to move from the soil cleaning device 3 to the screening device 4, and the push plate 86 brings the potatoes to the screening device 4, because the setting of interval between left branch 43a and the right branch 43b for the potato is packed in the receipts workbin 51 that distinguishes with baffle group G according to the not equidimension branch, after shovel 71 transports the potato to earth cleaning device 3 once more, press down and will press down the push rod 87 simultaneously and push back according to push rod 87, make and press down push rod 87 in the motion, move up under the effect of elastic component 84, make second connecting rod 85 part retrieve in installing the storehouse 83, thereby make push plate 86 shift up, be convenient for cross the potato, this process reciprocates, accomplish the cleaning of potato, the screening.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the machine frame 1, the air guide opening 1a, the mounting seat 11, the feed opening 13, the hinge post 14, the air cylinder 15, the operation groove 16, the slide groove 17, the first transmission chain a, the second transmission chain b, the coupling a1, the motor a, the fan device 2, the rotating shaft 21, the air guide fan 22, the first gear 23, the soil cleaning device 3, the second gear 31, the worm 32, the third gear 33, the first gear 32a, the inclined plate 34, the cleaning component mounting frame 35, the cleaning component Q, the cleaning shaft Q1, the soft brush Q2, the fourth gear Q3, the screening device 4, the screening frame 41, the separating rod 42, the stepped rod assembly 43, the left support rod 43a, the right support rod 43b, the material receiving device 5, the box 51, the slide rail 52, the cylindrical groove 52a, the screw operation groove 53, the locking screw 54, the partition plate assembly G, the slide block G1, the ball G2, the fixing plate G3, the partition plate G4, the wheel device 6, the wheel assembly 6a, and the, The terms of the belt 6b, the wheel shaft 61, the fifth gear 62, the wheel 63, the blade device 7, the blade 71, the sand leakage opening 72, the arc-shaped blade 73, the anti-falling plate 74, the push plate device 8, the sliding column 81, the first link 82, the mounting bin 83, the elastic member 84, the second link 85, the push plate 86, the pressing rod 87, the cross rod 88, etc., do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.