CN211268541U - Foreign matter removing and sorting equipment for harvested agricultural products - Google Patents

Abstract

The utility model discloses a foreign matter of post harvest agricultural product is rejected and is selected separately and equip. The device comprises a chain rod type flexible conical wheel dry soil removing device, a flexible differential roller small foreign matter removing device and an automatic sorting device which are sequentially connected and arranged along the conveying direction of agricultural products; the soil removing device comprises a sleeve wheel assembly, a chain bar shaft, a synchronous wheel rack, a supporting structure, a foreign matter conveying plate, a push-pull foreign matter collecting box, an inlet rack, a feeding motor and a long chain; the small foreign body device is arranged at an outlet at the upper end of a shell box body of the soil removing device and comprises a shell plate, a plurality of flexible rollers, a transmission device and an inclination adjusting mechanism; the sorting device is arranged at an outlet of the small foreign body device and comprises a conveyor belt group, a sorting executing mechanism, a visual detection unit, a flexible buffer piece, a baffle and an outlet frame; the utility model discloses can be used to the foreign matter of post harvest agricultural product to reject and select separately, especially be used for agricultural products such as potato, peanut, carrot to excavate the back foreign matter and reject, can reduce the agricultural product damage simultaneously.

Description

Foreign matter removing and sorting equipment for harvested agricultural products

Technical Field

The utility model relates to a post-harvest foreign matter removing and sorting device for agricultural products such as potatoes, peanuts and radishes are removed after digging, and doped soil blocks, stones and the like are removed.

Background

The underground crops such as potatoes, peanuts, radishes and the like are very important in the agricultural production of China, have very high nutritional values, have high yield and large planting area in China, and are main vegetables in the life of people in China. However, although China is a big underground agricultural product producing country, China is not a strong industry country, and a lot of problems still exist in the agricultural product industry development. One of the main reasons is that the mechanized harvest level in China is low, and the post-harvest treatment technology for underground agricultural products is lagged behind. Therefore, the excavated and harvested agricultural products are doped with a large amount of foreign matters such as soil, stones, branches, leaves, stems and stalks and the like, and the agricultural products with diseases, rot or defects, and if the foreign matters cannot be effectively removed, the foreign matters can influence the further processing, selling or storing of the subsequent agricultural products, so that the processing product quality is low in price and difficult to sell. Therefore, we should pay attention to the post-harvest treatment of agricultural products, wherein the most critical step is its foreign body removal and sorting.

The common agricultural product sorting method in the domestic market at present comprises manual sorting and mechanical sorting. The manual sorting method is time-consuming and labor-consuming, and has high labor cost; the mechanical separation method generally performs screening according to the sizes of agricultural products and foreign matters, the mode easily causes damage to the agricultural products, and for soil blocks or stones and the like which are similar to the size of the agricultural products, the mechanical separation method cannot perform thorough and effective separation, and often needs manual secondary auxiliary screening.

Notice for 204540727U's patent discloses a turnip washs stoving sorting unit, is equipped with washing tank, drying chamber and selects separately the room, and three device passes through the conveyer belt and connects, collects turnip washing, stoving and selects separately function in an organic whole. The equipment designed by the patent adopts a cleaning mode of drying after water washing, a water path system and a gas path system are required to be arranged, the whole system is complex, and radish is easy to rot and deteriorate if the drying is not thorough; the sorting device adopts vibrating screens with screen holes of different sizes to finish size sorting, and radishes are easily damaged.

The patent with publication number CN104941922A discloses a potato grading control method and device based on machine vision technology, which can be used for quickly detecting impurities and potatoes with different qualities to realize potato sorting. The equipment designed by the patent does not carry out primary foreign matter removal and surface cleaning on the potatoes, so that the detection and classification device is possibly overloaded, and the accuracy is reduced; the mode of detecting first and then grading is adopted to detect the materials on the conveying belt, so that when foreign matters are adhered to the conveying belt, the detection result is possibly inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem existing in the background art, the utility model aims to provide a foreign matter of post harvest agricultural product is rejected and is selected separately and equip. The utility model discloses can be used to the foreign matter of post harvest agricultural product to reject and select separately, especially be used for agricultural products such as potato, peanut, carrot to excavate the back foreign matter and reject, can reduce the agricultural product damage simultaneously.

The utility model discloses a specific technical scheme as follows:

the utility model comprises a chain rod type flexible conical wheel dry soil removing device, a flexible differential roller small foreign matter removing device and an automatic sorting device which are sequentially connected and arranged along the agricultural product conveying direction; the chain rod type flexible conical wheel dry-type soil removing device has the main functions that harvested agricultural products are received through the feeding hole, and surface cleaning and primary foreign matter removing of the agricultural products are completed.

The chain rod type flexible conical wheel dry soil removing device comprises a sleeve wheel assembly, a chain rod shaft, a synchronous wheel rack, a supporting structure, a foreign matter conveying plate, a push-pull foreign matter collecting box, an inlet rack, a feeding motor and a long chain; the feeding mechanism comprises a shell box body, a feeding motor, a feeding port, two chain groups and a closed-loop long chain, wherein the shell box body is supported and fixed on the ground through an inlet frame; a plurality of chain rod shafts are connected between the two long chains of the two chain groups along the long chains, the chain rod shafts are uniformly arranged along the long chains at intervals in an annular parallel manner, and two ends of each chain rod shaft are fixedly connected between the chain joints of the two long chains; each chain bar shaft is sleeved with a sleeve wheel assembly, and each sleeve wheel assembly comprises a shaft sleeve, a flexible conical wheel, a flexible sleeve and a synchronizing wheel; the flexible conical wheels and the flexible sleeves are alternately arranged on the same shaft sleeve, and the flexible conical wheels and the flexible sleeves on adjacent shaft sleeves are alternately arranged, so that an envelope space for agricultural products is formed between the adjacent flexible conical wheels; an annular synchronizing wheel rack is uniformly arranged on the inner sides of the two long chains, the synchronizing wheel rack is fixedly installed and connected with the shell box body relatively through a supporting structure, a rack structure is formed on the peripheral surface of the outer ring of the synchronizing wheel rack, and the rack structure of the synchronizing wheel outer ring of each sleeve wheel assembly is meshed and connected with the rack structure of the synchronizing wheel rack outer ring.

The device for removing small foreign matters by the flexible differential roller is arranged at an outlet at the upper end of a shell box body of the chain rod type flexible conical wheel dry-type soil removing device and comprises a shell plate, a plurality of flexible rollers which are arranged in parallel at equal intervals, a transmission device and an inclination adjusting mechanism; the transmission device comprises a flexible roller driving motor, a plurality of groups of chain wheels and a short driving chain; the two outer shell plates are vertically and parallelly fixed on two sides of the inlet frame along the conveying direction, the flexible rollers are arranged at equal intervals along the conveying direction and are hinged between the two outer shell plates, the same end shafts of every two adjacent flexible rollers are connected by a group of short driving chain chains in a transmission manner, the end shaft of one of the flexible rollers is coaxially connected with the output shaft of the flexible roller driving motor, and the flexible roller driving motor is fixed on one of the outer shell plates; an inner core of the flexible roller is made of square metal alloy, a polyurethane elastic material is sleeved on the outer surface of the inner core, and a plurality of strip-shaped pores with similar triangular holes are uniformly distributed in the polyurethane elastic material at intervals along the circumference; the flexible roller driving motor drives the flexible rollers to rotate through chain transmission, the flexible rollers rotate in the same direction and the speed of the flexible rollers is gradually reduced along the conveying direction, and therefore foreign matters which fall between the gaps of every two adjacent flexible rollers and are smaller than the size of agricultural products can be downwards overturned and removed from the gaps through the rotation difference between the two flexible rollers.

The automatic sorting device is arranged at an outlet of the small foreign matter removing device of the flexible differential roller, and specifically comprises a conveyor belt group, a sorting actuating mechanism, a visual detection unit, a flexible buffer piece, a baffle and an outlet frame; the conveying belt group comprises three conveying belts of a feeding conveying belt, a discharging conveying belt and a foreign matter conveying belt; the feeding conveyer belt is arranged on the inlet frame, and the inlet side of the feeding conveyer belt is connected with the conveying outlets of six flexible rollers of the flexible differential roller small foreign matter removing device; the discharging conveyer belt is positioned in front of and obliquely below the outlet side of the feeding conveyer belt and is used for receiving agricultural products from the feeding conveyer belt and conveying the agricultural products out; the foreign matter conveying belt is positioned right below the gap between the feeding conveying belt and the discharging conveying belt and is used for receiving and conveying the foreign matters from the feeding conveying belt; a flexible buffer piece is arranged above one side of the discharging conveying belt, which is close to the feeding conveying belt, and is of a wedge-shaped protruding structure on one side, and the protruding structure is of a wedge shape on the side far away from the feeding conveying belt; the sorting actuating mechanism is arranged right above one side, close to the feeding conveyer belt, of the discharging conveyer belt and specifically comprises a connecting plate and a plurality of deflector rod cylinder assemblies arranged in parallel side by side in the connecting plate, the connecting plate is arranged on the outlet frame, each deflector rod cylinder assembly comprises a deflector rod piece and a cylinder, the top end of the deflector rod piece is hinged with a U-shaped opening end at the lower end of a U-shaped connecting piece I, the upper end folding end of the U-shaped connecting piece I is fixedly connected with the connecting plate, the side surface, far away from one side of the feeding conveyer belt, of the top of the deflector rod piece is hinged with a U-shaped opening end of a U-shaped connecting piece II, the folding end of the U-shaped connecting piece II is fixedly connected with an output rod of the cylinder, a cylinder body is hinged with a U-shaped opening end of a U-shaped connecting piece III, the folding end of the U-shaped, and ejection and recovery of sorting execution are realized.

The flexible cone-shaped wheel is divided into two sections of round tables and one section of round sleeve structure, the small ends of the two sections of round tables are arranged oppositely, and the small ends of the two sections of round tables are connected through the round sleeve to form an integral structure.

The device is characterized in that a foreign matter conveying plate is arranged below the chain rod type flexible conical wheel dry-type soil removing device and the flexible differential roller small foreign matter removing device, the bottom of the foreign matter conveying plate is installed on the inlet rack, the foreign matter conveying plate is obliquely and upwards arranged from the chain rod type flexible conical wheel dry-type soil removing device to the bottom of the flexible differential roller small foreign matter removing device, and the foreign matter conveying plate plays a role in guiding and conveying the foreign matters screened by the chain rod type flexible conical wheel dry-type soil removing device and the flexible differential roller small foreign matter removing device.

The inlet frame is constructed by a plurality of rod pieces, wherein the rod pieces connected to the two shell plates of the flexible differential roller small foreign body removing device are telescopic rods; the bottom of one end of each of the two outer shell plates of the flexible differential roller small foreign matter removing device, which is close to the arrangement of the chain rod type flexible conical wheel dry-type soil removing device, is connected with the inlet frame through the inclination adjusting mechanism, and the height of the telescopic rod at the bottom of each outer shell plate is adjusted through the inclination adjusting mechanism, so that the inclination adjustment of the six flexible rollers is realized; the inclination adjusting mechanism mainly comprises a bolt and a disc fixed at the bottom of the bolt, the top end of the bolt is in threaded connection with a threaded hole at the bottom of the shell plate to form a thread pair, the bottom end of the bolt is sleeved in a through hole of the inlet rack through an optical axis, the disc is rotated to drive the bolt to rotate, and the shell plate is driven by the thread pair to be located close to one end of the chain rod type flexible conical wheel dry soil removing device to lift up and down.

Cord fabric I is arranged between the chain rod type flexible conical wheel dry soil removing device and the flexible differential roller small foreign matter removing device, and cord fabric II is arranged between the flexible differential roller small foreign matter removing device and the feeding conveyer belt of the automatic sorting device. The purpose of setting up curtain cloth here is to make the potato tiling open, avoids the potato to pile up, and has a certain distance each other, is favorable to visual detection unit and driving lever spare to detect and select separately the potato.

The inlet frame is divided into two parts at the bottom of the flexible differential roller small foreign matter removing device and the conveying belt set, the two parts are detachably connected through a detachable connecting mechanism, and the detachable connecting mechanism is of a mortise and tenon structure which is matched with the tenon and mortise structure connected through bolts.

The visual detection unit is arranged right above the discharging conveyer belt and comprises a box body, a laser and a camera which are arranged in the box body; the box body is fixed on the outlet frame and positioned above the discharging conveying belt and the sorting executing mechanism, the camera and the laser are respectively installed on a camera fixing rod and a laser fixing rod through a connecting piece I and a connecting piece II, the connecting piece I and the connecting piece II are fixedly connected through a bolt III, the camera fixing rod and the laser fixing rod are respectively and fixedly connected to the box body through bolts IV at two end parts, and the positions and the inclination angles of the camera and the laser are respectively and independently adjustable by changing the connecting positions of the bolts IV at the two end parts and the box body and changing the installation positions and the installation angles of the connecting piece I and the connecting piece II on the camera fixing rod and the laser fixing rod; the box is at the one end opening that is close to the feeding conveyer belt, and camera and laser detection end permeate the opening and arrange towards the feeding conveyer belt exit end.

The visual detection unit is integrally hinged to the outlet rack through a bolt I, and the height and the inclination angle of the visual detection unit are adjusted by adjusting the positions of the bolt I in a straight chute on the outlet rack and a semi-arc chute on the box body.

The connecting plate install in the export frame through selecting separately actuating mechanism position control device, select separately actuating mechanism position control device and include bolt II and supporting nut and set up the bar groove in the export frame, pass bolt II behind the bar groove of export frame, the through-hole of connecting plate coupling nut to be connected connecting plate and export frame.

The foreign matter conveyer belt be equipped with the baffle in the top that is close to feeding conveyer belt one side.

The utility model discloses the agricultural product that comes in will reaping at first gets into the flexible cone pulley dry-type of chain rod formula and removes native device, accomplishes the material loading through the flexible cone pulley of chain rod formula under motor drive to tentatively the rejection of less foreign matter and agricultural product surface remove native, then remove little foreign matter device through flexible differential roller, accomplish further surperficial earth and reject and the foreign matter is rejected. And finally, the foreign matters enter an automatic sorting device, the identification of the foreign matters such as soil blocks, stones and defective crops is carried out by adopting a laser back scattering imaging detection technology in the process of throwing out from the tail end of the feeding conveying belt, the detection identification result is transmitted to a control unit, so that the stretching out and retracting of a cylinder is controlled, a driving lever piece is driven to pop out and retract, the throwing track of the foreign matters is changed, the foreign matters are separated from agricultural products, and then the foreign matters are conveyed out through a foreign matter conveying belt and a discharging conveying belt respectively.

The utility model has the advantages that:

the utility model can be used for removing soil blocks, stones and the like after digging the agricultural products such as potatoes, peanuts, carrots and the like, and can also be used for cleaning the surfaces of the agricultural products by friction; by adopting various flexible mechanisms, the damage of agricultural products in the sorting process is reduced as much as possible; through laser scattering imaging detection technology, the object thrown out at the tail end of the conveying belt is detected, the foreign matter throwing track is changed by the driving lever piece, and the agricultural products are accurately and effectively sorted.

The utility model discloses can be used to the foreign matter of post harvest agricultural product to reject and select separately, especially be used for agricultural products such as potato, peanut, carrot to excavate the back foreign matter and reject, can reduce the agricultural product damage simultaneously.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a partial top view of the chain link flexible conical wheel dry type soil removal device;

FIG. 3 is a partial isometric view of the chain link flexible conical wheel dry soil removal device;

FIG. 4 is an isometric view of a flexible cone wheel;

FIG. 5 is an isometric view of a foreign object transport plate;

FIG. 6 is an isometric view of a push-pull foreign material collection bin;

FIG. 7 is a top view of the flexible differential roller device for removing small foreign matters;

FIG. 8 is a front view and an isometric view of a flexible roll structure;

FIG. 9 is a schematic view showing the operation of the device for removing small foreign matters by the flexible differential roller;

FIG. 10 is a schematic view of the working principle of the flexible differential roller small foreign matter removing device for removing stones;

fig. 10(a) is a schematic view of a stone block being gripped by two adjacent flexible rolls;

fig. 10(b) is a schematic view of the rotation of the stone under the differential action of the flexible rolls;

fig. 10(c) is a schematic view of a rock rotating to fall through a flexible roll gap;

FIG. 11 is a side view of an automated sorting apparatus;

FIG. 12 is an isometric view of a visual detection unit;

FIG. 13 is an isometric view of a sorting actuator;

FIG. 14 is a schematic view of the toggle member in an ejected and retracted state;

FIG. 14(a) is a schematic view of the toggle bar in a retracted state;

FIG. 14(b) is a schematic view of the toggle member in the pop-up state;

FIG. 15 is a schematic view of the movement path of normal produce during sorting;

fig. 16 is a schematic diagram of the movement locus of the foreign matter during sorting.

In the figure: 1. a feed inlet; 2. a chain rod type flexible conical wheel dry-type soil removing device; 3. cord fabric I; 4. a flexible differential roller small foreign body removing device; 5. cord fabric II; 6. a set of conveyor belts; 7. a sorting actuator; 8. a visual detection unit; 9. a camera position adjustment device; 10. a position adjusting device of the sorting actuating mechanism; 11. an exit frame; 12. a discharging motor; 13. a foreign matter conveying motor; 14. a flexible buffer; 15. a baffle plate; 16. A hoof; 17. a detachable connection mechanism; 18. tiling a motor; 19. a transmission device; 20. a telescopic rod; 21. A flexible roller drive motor; 22. an inclination adjusting mechanism; 23. an inlet frame; 24. a caster wheel; 25. a foreign matter conveying plate; 26. a push-pull foreign body collecting box; 27. a feeding motor; 28. a synchronizing wheel rack; 29. a support structure; 30. a flexible sleeve; 31. a flexible conical wheel; 32. a shaft sleeve; 33. a chain bar shaft; 34. a long chain; 35. a synchronizing wheel; 36. a sprocket; 37. a bearing; 38. a flexible roll; 39. a short drive chain; 40. a sprocket; 41. a foreign matter; 42. agricultural products; 43. an automatic sorting device; 44. a feed conveyor belt; 45. a bolt I; 46. a bolt II; 47. a rod pulling member; 48. a discharge conveyer belt; 49. a foreign matter conveyor belt; 50. a camera; 51. a box body; 52. a camera fixing rod; 53. a laser fixing rod; 54. a laser; 55. a bolt III; 56. connecting a sheet I; 57. connecting a sheet II; 58. a bolt IV; 59. a U-shaped connector I; 60. a connecting plate; 61. a U-shaped connecting piece II; 62. a cylinder; 63. a U-shaped connecting piece III; 64. an envelope space; 65. a drive shaft.

Detailed Description

The following takes the foreign matter removing and sorting of potatoes as an example, and the utility model is further explained by combining the attached drawings and the specific embodiment.

As shown in fig. 1, the utility model mainly comprises three parts: a chain rod type flexible cone wheel dry-type soil removing device 2, a flexible differential roller small foreign matter removing device 4 and an automatic sorting device 43. Harvested potatoes enter the equipment through the feed inlet 1 and firstly pass through the chain rod type flexible conical wheel dry-type soil removing device 2, and dry surface cleaning and small foreign matter removal of the potatoes are mainly carried out on the part.

As shown in fig. 1, 2 and 3, the chain-rod type flexible conical wheel dry-type soil removing device 2 comprises a sleeve wheel assembly, a chain rod shaft 33, a synchronous wheel rack 28, a supporting structure 29, a foreign matter conveying plate 25, a push-pull foreign matter collecting box 26, an inlet frame 23, a feeding motor 27 and a long chain 34; the outer shell box body is supported and fixed on the ground through an inlet frame 23, a feeding motor 27 is fixedly installed on the outer wall of the outer shell box body, the outer shell box body is arranged in an upward inclined mode, and the feeding hole 1 is located above the bottom of the outer shell box body of the chain rod type flexible conical wheel dry-type soil removal device 2 and connected with the inlet frame 23 through a bolt; two chain groups are arranged on two sides of the inner side of the shell box body along the conveying direction, the two chain groups are arranged in parallel and are also obliquely and obliquely upwards arranged, each chain group consists of two chain wheels 36 at two ends and a closed-loop long chain 34 connected between the two chain wheels 36, the chain wheels are arranged on a transmission shaft 65, the chain wheel at one end of one chain group is coaxially connected with an output shaft of a feeding motor 27, and the feeding motor 27 operates to drive the chain wheels to rotate so as to drive the long chain 34 to perform chain transmission motion; a plurality of chain link shafts 33 are connected between two long chains 34 of the two chain groups along the long chains 34, the chain link shafts 33 are uniformly arranged along the annular parallel of the long chains 34 at intervals, and two ends of each chain link shaft 33 are fixedly connected between corresponding chain joints at the same positions of the two long chains 34; a sleeve wheel assembly is sleeved outside each chain link shaft 33 and comprises a shaft sleeve 32, a flexible conical wheel 31, a flexible sleeve 30 and a synchronizing wheel 35; the axle sleeves 32 are sleeved outside the link shaft 33 in a clearance fit manner, the two ends of the axle sleeves 32 are fixedly sleeved with synchronizing wheels 35, the peripheral surfaces of the outer rings of the synchronizing wheels 35 are provided with a rack structure, the flexible conical wheels 31 and the flexible sleeves 30 are fixedly sleeved on the axle sleeves 32, the flexible conical wheels 31 and the flexible sleeves 30 on the same axle sleeve 32 are alternately arranged, the flexible conical wheels 31 and the flexible sleeves 30 on two axle sleeves 32 with one axle sleeve 32 in between are alternately arranged, the flexible conical wheels 31 and the flexible sleeves 30 on the two axle sleeves 32 with one axle sleeve 32 in between are arranged in the same way, so that an envelope space 64 for agricultural products 42 is formed between the adjacent flexible conical wheels 31, as shown in figure 2, specifically, an annular synchronizing wheel rack 28 is arranged on the inner sides of two long chains 34 which surround the envelope space 64 for the agricultural products 42 and is formed by the adjacent four flexible conical wheels 31 on the three axle sleeves 32, and the synchronizing wheel rack 28 is relatively and, the supporting structure 29 plays a supporting role in mounting the synchronizing wheel rack 28; the peripheral surface of the outer ring of the synchronizing wheel rack 28 is arranged into a rack structure, and the rack structure of the outer ring of the synchronizing wheel 35 of each sleeve wheel assembly is meshed and connected with the rack structure of the outer ring of the synchronizing wheel rack 28;

the feeding motor 27 operates to drive the long chains 34 to move along the annular circumferential direction, the shaft sleeves 32 are driven by the plurality of parallel chain rod shafts 33 between the long chains 34 of the two chain groups to move along the annular circumferential direction, and in the process that the synchronizing wheels 35 at the two ends of the shaft sleeves 32 move along with the shaft sleeves 32, the shaft sleeves 32 are driven to rotate around the chain rod shafts 33 due to the meshing relationship between the synchronizing wheels 35 and the synchronizing wheel racks 28, so that the flexible conical wheels 31 and the flexible sleeves 30 are driven to rotate, and the surface of the agricultural products 42 is rubbed and wiped by the enveloping space 64.

As shown in fig. 4, the flexible cone wheel 31 is divided into two segments of round platforms and a segment of round sleeve structure, the small ends of the two segments of round platforms are arranged oppositely, and the small ends of the two segments of round platforms are connected through the round sleeve to form an integral structure.

The lower part of the chain-rod type flexible conical wheel dry-type soil removing device 2 and the flexible differential roller small foreign matter removing device 4 is provided with a foreign matter conveying plate 25, the bottom of the foreign matter conveying plate 25 is fixedly installed on the inlet frame 23 through bolts, the foreign matter conveying plate 25 is obliquely and upwards arranged from the chain-rod type flexible conical wheel dry-type soil removing device 2 to the bottom of the flexible differential roller small foreign matter removing device 4, the top of the foreign matter conveying plate 25 is arranged along the lower part of the bottom of the flexible differential roller small foreign matter removing device 4 in an extending mode, the bottom of the foreign matter conveying plate 25 is arranged along the lower part of the bottom of the chain-rod type flexible conical wheel dry-type soil removing device 2 in an extending mode, and the foreign matter conveying plate 25 plays a role in guiding and conveying the foreign matters 41 screened by the chain-rod type.

The lowest end of the foreign matter conveying plate 25 is provided with a push-pull foreign matter collecting box 26, as shown in fig. 6, the push-pull foreign matter collecting box 26 is connected with the bottom of the foreign matter conveying plate 25 through a chute, and the push-pull foreign matter collecting box 26 collects the foreign matters 41 conveyed by the foreign matter conveying plate 25 for convenient disposal.

In the working process of the chain rod type flexible conical wheel dry soil removing device 2, the long chain 34 is driven by the chain wheel 36 to continuously move, and the chain rod shaft 33, the synchronous wheel 35 thereon, the shaft sleeve 32, the flexible conical wheel 31 and the flexible sleeve 30 are driven to move forwards. The synchronizing wheel rack 28 is fixed by means of the supporting structure 29, and due to the meshing action of the synchronizing wheel 35 and the synchronizing wheel rack 28, the synchronizing wheel 33 continuously rotates in the forward movement process, so that the shaft sleeve 32, the flexible conical wheel 31 thereon and the flexible sleeve 30 are driven to rotate, and the potatoes in the enveloping space 64 are driven to continuously rotate. By adopting the chain rod type feeding mode, the high conveying efficiency is achieved, meanwhile, the potatoes, the flexible conical wheel 31 and the flexible sleeve 30 can be continuously rotated and rubbed, the soil adhered to the surfaces of the potatoes can be well removed, and the cleaning effect is good.

In addition, some small foreign matters and friction-removed soil in the potato flow fall onto the foreign matter conveying plate 25 below through the gap between the flexible conical wheel 31 and the flexible sleeve 30, are guided by the foreign matter conveying plate 25 to move into the push-pull foreign matter collecting box 26, and are finally cleaned manually. The structure of the flexible cone wheel 31, the foreign matter conveying plate 25 and the push-pull foreign matter collecting box 26 is shown in fig. 4, 5 and 6.

After the primary treatment of the chain rod type flexible conical wheel dry-type soil removing device 2, the potatoes enter a flexible differential roller small foreign matter removing device 4. The main function of the device is to further remove the surface adhering soil by the friction between the flexible rollers 38 and the potatoes, and more importantly, to achieve the purpose of removing stones by the flexible roller gaps and the deformation of the surface flexible materials.

As shown in fig. 7, the flexible differential roller small foreign matter removing device 4 is arranged at the outlet of the upper end of the outer casing of the chain rod type flexible cone wheel dry soil removing device 2, and comprises an outer casing plate, a plurality of flexible rollers 38 which are arranged in parallel at equal intervals, a transmission device 19 and an inclination adjusting mechanism 22; the transmission 19 comprises a flexible roller drive motor 21, a plurality of sets of chain wheels 40 and a short drive chain 39; the two outer shell plates are vertically and parallelly fixed on two sides of the inlet frame 23 along the conveying direction, the flexible rollers 38 are arranged at equal intervals along the conveying direction and are hinged between the two outer shell plates through bearings 37, each flexible roller 38 is arranged along the direction perpendicular to the conveying direction, the same end shafts of every two adjacent flexible rollers 38 are in chain transmission connection through a group of short driving chains 39, the end shaft of one flexible roller 38 of the flexible rollers 38 is coaxially connected with the output shaft of the flexible roller driving motor 21, and the flexible roller driving motor 21 is fixed on one of the outer shell plates.

As shown in fig. 8, the inner core of the flexible roller 38 is made of square metal alloy, the outer surface of the inner core is sleeved with a polyurethane elastic material, the polyurethane elastic material is internally and uniformly provided with a plurality of bar-shaped holes at intervals along the circumference, the bar-shaped holes are uniformly and circumferentially distributed at intervals, and the bar-shaped holes of the bar-shaped holes are arranged in the same direction and along the same spiral.

As shown in fig. 9 and 10, the flexible roller driving motor 21 operates to drive the plurality of flexible rollers 38 to rotate through chain transmission, the upper surfaces of the flexible rollers 38 rotate along the conveying direction, the plurality of flexible rollers 38 rotate in the same direction and gradually reduce the speed along the conveying direction, so that the foreign matters 41 which fall between the gaps of every two adjacent flexible rollers 38 and are smaller than the size of the agricultural products 42 can be downwards overturned and removed from the gaps through the rotation difference between the two flexible rollers 38, and the dry removal of the middle-size foreign matter soil blocks and stone blocks is realized.

The specific working process and principle are shown in fig. 9 and 10: the potatoes 42 have a smoother surface than the foreign matter (stone) 41, are regular in shape and small in specific gravity, are not easily clamped by the two adjacent flexible rollers 38, and are irregular in stone shape, rough in surface and small in volume, and are more easily dropped into the gap between the two adjacent flexible rollers 38 to produce a clamping effect. The purpose of the differential speed is also to reduce the passability of the foreign matter (stone) 41, making it easier to be gripped. The front and rear flexible rollers 38 now exert on the stone forces F1, F2 of opposite directions, parallel but not coincident lines of action, creating a torque, and the downward force F1 is greater than the upward force F2 due to the differential action. The foreign matter (stone) 41 rotates with its irregular surface having corners, and the flexible roller 38 is pressed to be deformed while the holding force of the flexible roller 38 against the foreign matter (stone) 41 is increased. In addition, the stone is acted by the downward self gravity G, and the final effect is that the stone continuously rotates and falls between the two flexible rollers 38, so that the elimination is completed. Similarly, rocks falling from the gap between the flexible rollers 38 fall onto the foreign matter conveying plate 25 below, and are guided by the foreign matter conveying plate 25 to move into the push-pull foreign matter collecting box 26.

The angle of inclination of the juxtaposed flexible rolls 38 can be adjusted by the inclination adjustment mechanism 22 to accommodate different feed rates and production rates. The larger the angle of inclination, the easier the potatoes pass through, the higher the productivity, but the poorer the corresponding cleaning effect.

In the concrete implementation taking the potatoes as an example, the axial distance between every two adjacent flexible rollers 38 is 120mm, the distance between the surfaces of the polyurethane elastic materials is 20mm, and the rotating speeds of the six flexible rollers 38 are 100, 90, 80, 70, 60 and 50r/min from the feeding end to the discharging end in sequence, so that medium-sized foreign matters with the radial size smaller than 30-40 mm can be screened and rejected by means of deformation of the elastic materials on the surfaces of the flexible rollers.

As shown in fig. 1, the inlet frame 23 is constructed of a plurality of bars, wherein the bars connected to the two outer shell plates of the flexible differential roller small foreign matter removing device 4 are telescopic bars 20.

As shown in fig. 7, the two shell plates of the flexible differential roller small foreign matter removing device 4 are connected to the inlet frame 23 through the inclination adjusting mechanism 22 at the bottom of one end of the dry soil removing device 2 near the chain-link flexible conical wheel, the height of the telescopic rod 20 at the bottom of the shell plates is adjusted through the inclination adjusting mechanism 22 and is fixed by means of threaded connection, so that the inclination adjustment of six flexible rollers 38 is realized, and the trafficability of agricultural products 42 can be changed according to different working conditions; the inclination adjusting mechanism 22 mainly comprises a bolt and a disc fixed at the bottom of the bolt, the top end of the bolt is in threaded connection with a threaded hole at the bottom of the shell plate to form a thread pair, the bottom end of the bolt is sleeved in a through hole of the inlet rack 23 through an optical axis, the disc is rotated to drive the bolt to rotate, and the shell plate is driven by the thread pair to be located close to one end of the chain rod type flexible cone wheel dry-type soil removing device 2 to lift up and down.

After passing through the flexible differential roller foreign matter removing device 4, the potatoes enter the automatic sorting device 43 through the feeding conveyer belt 44. The main function of the device is to realize the recognition of potatoes and foreign matters and further complete the sorting.

As shown in fig. 11, the automatic sorting device 43 is disposed at the outlet of the flexible differential roller small foreign matter removing device 4, and specifically includes a conveyor belt group 6, a sorting actuator 7, a visual detection unit 8, a flexible buffer 14, a baffle 15, and an outlet frame 11. The conveying belt group 6 comprises three conveying belts of a feeding conveying belt 44, a discharging conveying belt 48 and a foreign matter conveying belt 49; the feeding conveyer belt 44 is arranged on the inlet frame 23, the inlet side of the feeding conveyer belt 44 is connected with the conveying outlets of the six flexible rollers 38 of the flexible differential roller small foreign matter removing device 4, and the feeding conveyer belt 44 receives the agricultural products from the flexible differential roller small foreign matter removing device 4 for conveying; the discharging conveyer belt 48 is positioned at the front and obliquely lower part of the outlet side of the feeding conveyer belt 44 and is used for receiving the agricultural products from the feeding conveyer belt 44 and conveying the agricultural products out; the foreign matter conveyor belt 49 is located right below the gap between the feed conveyor belt 44 and the discharge conveyor belt 48, and is located lowermost for receiving and conveying large foreign matters from the feed conveyor belt 44.

The discharging conveyer belt 48 is provided with a flexible buffer 14 above one side close to the feeding conveyer belt 44, the flexible buffer 14 is a wedge-shaped convex structure on one side, and the convex structure is wedge-shaped on one side far away from the feeding conveyer belt 44; the flexible buffer 14 is made of a flexible material for receiving normal agricultural products thrown off the end of the infeed conveyor belt 44 to prevent damage.

The feeding conveyer belt 44 is connected with the tiling motor 18, an output shaft of the tiling motor 18 is connected with a belt wheel at one end of the feeding conveyer belt 44, and the tiling motor 18 operates to drive the feeding conveyer belt 44 to move. The discharging conveyer belt 48 is connected with the discharging motor 12, an output shaft of the discharging motor 12 is connected with a belt wheel at one end of the discharging conveyer belt 48, and the discharging motor 12 drives the discharging conveyer belt 48 to move. Foreign matter conveyer belt 49 is connected foreign matter conveying motor 13, and foreign matter conveying motor 13's output shaft and foreign matter conveyer belt 49 wherein the band pulley of one end are connected, and foreign matter conveying motor 13 operation drives foreign matter conveyer belt 49 and moves.

As shown in figure 1, a curtain cloth I3 is arranged between a chain rod type flexible conical wheel dry type soil removing device 2 and a flexible differential roller small foreign body removing device 4, the curtain cloth I is installed between the chain rod type flexible conical wheel dry type soil removing device and the flexible differential roller small foreign body removing device, materials can be spread out flatly to avoid accumulation, a certain distance exists between front and rear potatoes, and the situation that the cleaning effect is poor due to the fact that the feeding speed is too high is prevented.

As shown in FIG. 1, a curtain cloth II 5 is arranged between the flexible differential roller small foreign matter removing device 4 and the feeding conveyer belt 44 of the automatic sorting device 43. Curtain cloth II is installed and is removed between little foreign matter device and the feeding conveyer belt at flexible differential roller, and the purpose is opened agricultural product tiling, the follow-up detection of being convenient for. The flexible buffer piece is made of flexible materials, is arranged above the end part of the discharging conveying belt and is used for receiving normal agricultural products thrown off from the tail end of the feeding conveying belt to prevent damage.

As shown in fig. 1, the inlet frame 23 is divided into two parts at the bottom of the flexible differential roller small foreign matter removing device 4 and the conveyor belt group 6, the two parts are detachably connected through a detachable connecting mechanism 17, and the detachable connecting mechanism 17 is in a mortise and tenon joint structure matched with the bolt for connection.

As shown in fig. 12, the visual inspection unit 8 is disposed right above the discharging conveyor belt 48, and includes a box 51, and a laser 54 and a camera 50 installed in the box 51; the box body 51 is fixed on the outlet frame 11 and positioned above the discharging conveying belt 48 and the sorting actuating mechanism 7, the camera 50 and the laser 54 are respectively installed on the camera fixing rod 52 and the laser fixing rod 53 through a connecting piece I56 and a connecting piece II 57, the connecting piece I56 and the connecting piece II 57 are fixedly connected through a bolt III 55, the camera fixing rod 52 and the laser fixing rod 53 are respectively and fixedly connected to the box body 51 through bolts IV 58 at two end parts, and the positions and the inclination angles of the camera 50 and the laser 54 are respectively and independently adjustable by changing the connecting positions of the bolts IV 58 at the two end parts and the box body 51 and changing the installation positions and the installation angles of the connecting piece I56 and the connecting piece II 57 on the camera fixing rod 52 and the laser fixing rod 53; the box 51 is open at one end near the infeed conveyor 44, through which the camera 50 and the laser 54 detection end are disposed toward the exit end of the infeed conveyor 44.

Visual detection unit 8 wholly articulates on export frame 11 through bolt I45, through the position in the straight spout of adjusting bolt I45 on export frame 11 and the semicircle spout on box 51, realizes its height and inclination's regulation to adjust visual detection unit 8's best detection position according to different work condition.

The bottom of the inlet frame 23 and the outlet frame 11 is provided with a caster 24 and a hoof foot 16, the caster 24 is used for driving the movement when the installation position is adjusted, and the hoof foot 16 is used for fixing the position when the installation position is adjusted.

As shown in fig. 13 and 14, the sorting actuator 7 is disposed on the discharging conveyer belt 48 directly above the side close to the feeding conveyer belt 44, and specifically includes a connecting plate 60 and a plurality of deflector rod cylinder assemblies arranged in parallel side by side in the direction perpendicular to the conveying direction inside the connecting plate 60, the connecting plate 60 is mounted on the outlet frame 11, each deflector rod cylinder assembly includes a deflector rod 47 and a cylinder 62, the deflector rod 47 is made of polyoxymethylene material, the top end of the deflector rod 47 is hinged to the U-shaped open end of the lower end of the U-shaped connector i 59, the upper end of the U-shaped connector i 59 is fixed to the connecting plate 60, the top of the deflector rod 47 is hinged to the U-shaped open end of the U-shaped connector ii 61 on the side far from the feeding conveyer belt 44, the closed end of the U-shaped connector ii 61 is fixed to the output rod of the cylinder 62, the cylinder 62 is hinged to the U-shaped open end of the U-shaped connector iii 63, the, the stretching out and retracting back of the output rod of the air cylinder 62 drives the poking rod piece 47 to swing around the U-shaped connecting piece I59, so that the bottom end of the poking rod piece 47 is close to or far away from the feeding conveying belt 44, and the popping and withdrawing of sorting execution are realized.

Connecting plate 60 is installed on export frame 11 through selecting separately actuating mechanism position control device 10, select separately actuating mechanism position control device 10 and include II 46 of bolt and supporting nut and set up the bar groove on export frame 11, pass the bar groove of export frame 11 with II 46 of bolt, connecting nut behind the through-hole of connecting plate 60, thereby be connected connecting plate 60 and export frame 11, consequently its holistic height can be adjusted with controlling the position, thereby can guarantee to dial the foreign matter that member 47 can accurately reject wherein containing at the agricultural product of difference in-process of throwing.

The foreign matter conveyer belt 49 is provided with a baffle 15 above the side close to the feeding conveyer belt 44, and the baffle 15 is used for preventing the foreign matter from impacting the deflector rod piece 47 and then having overlarge speed, having too long movement distance and exceeding the range of the foreign matter conveyer belt 49, and playing a role of blocking so that the foreign matter falls on the foreign matter conveyer belt 49.

As shown in fig. 15, when the material thrown from the end of the feeding conveyer belt 44 is detected as normal agricultural products, the cylinder 62 is kept retracted, and the rod-pulling member 47 is kept retracted, so that the normal agricultural products fall onto the discharging conveyer belt 48;

when the foreign matter is detected, the air cylinder 62 extends out to drive the poking rod piece 47 to pop up, so that the foreign matter collides with the foreign matter, the motion track of the foreign matter is changed, and the foreign matter falls onto the foreign matter conveying belt 49 arranged at the lowest part of the outlet frame 11.

The image of agricultural product/foreign matter whereabouts in-process is shot through visual detection unit 8 and is analyzed and judged, obtains agricultural product/foreign matter whereabouts position and specifically corresponds the driving lever cylinder assembly of which position, and then whether the driving lever 47 of control correspondence driving lever cylinder assembly moves, realizes the sorting of agricultural product and foreign matter.

In the working process of the visual detection unit 8, a laser back scattering imaging technology is adopted to detect each object thrown out from the tail end of the feeding conveyer belt 44, laser of a laser 54 emitting line irradiates the surface of the object, the object is scattered and collected by the camera 50, an original image of the object is obtained, and the object to be detected is identified through image processing. According to the recognition result, the control system controls the cylinder 62 to extend and retract, so that the poke rod piece 47 is driven to pop up or retract. When the detection result of the thrown object is potato, the corresponding air cylinder 62 is kept in the retraction state, as shown in fig. 14(a), at this time, the potato 42 falls onto the flexible buffer 14 and is then conveyed out by the discharging conveyor belt 48, and the movement track is as shown in fig. 15; when the detection result of the thrown object is foreign matters such as soil blocks or stones, the control system controls the corresponding cylinder 62 to extend out to drive the corresponding shifting lever 47 to eject, as shown in fig. 14(b), at this time, the foreign matters 41 collide with the ejected shifting lever 47 in the throwing process, so that the movement track is changed, and the foreign matters 41 fall onto the foreign matter conveying belt 49 below, and the movement track is as shown in fig. 16. In order to prevent the foreign matter 41 from impacting the deflector rod 47 and moving too far beyond the range of the foreign matter conveyor belt 49, the baffle 15 is provided for blocking.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, which is intended to cover any modifications and variations within the spirit and scope of the appended claims.

Claims (10)

1. The utility model provides a foreign matter of post harvest agricultural product is rejected and is selected separately and equip which characterized in that: comprises a chain rod type flexible conical wheel dry-type soil removing device (2), a flexible differential roller small foreign matter removing device (4) and an automatic sorting device (43) which are sequentially connected and arranged along the conveying direction of agricultural products;

the chain rod type flexible conical wheel dry-type soil removing device (2) comprises a sleeve wheel assembly, a chain rod shaft (33), a synchronous wheel rack (28), a supporting structure (29), a foreign matter conveying plate (25), a push-pull foreign matter collecting box (26), an inlet rack (23), a feeding motor (27) and a long chain (34); the shell box body is supported and fixed on the ground through an inlet rack (23), a feeding motor (27) is fixedly installed on the outer wall of the shell box body, the shell box body is arranged in an upward inclined mode, a feeding port (1) is located above the bottom of the shell box body, two chain groups are arranged on two sides of the shell box body along the conveying direction, the two chain groups are arranged in a parallel mode and are also arranged in an inclined mode, each chain group is composed of two chain wheels (36) at two ends and a closed-loop long chain (34) connected between the two chain wheels, and the chain wheel (36) at one end of one chain group is coaxially connected with an output shaft of the feeding motor (27); a plurality of chain axle shafts (33) are connected between two long chains (34) of the two chain groups along the long chains (34), the chain axle shafts (33) are uniformly arranged along the annular parallel of the long chains (34) at intervals, and two ends of each chain axle shaft (33) are fixedly connected between the chain joints of the two long chains (34); a sleeve wheel assembly is sleeved outside each chain bar shaft (33), and comprises a shaft sleeve (32), a flexible conical wheel (31), a flexible sleeve (30) and a synchronous wheel (35); the chain bar shaft is characterized in that a shaft sleeve (32) is sleeved outside a chain bar shaft (33) in a clearance fit manner, synchronizing wheels (35) are fixedly sleeved at two ends of the shaft sleeve (32), the peripheral surface of the outer ring of each synchronizing wheel (35) is in a rack structure, flexible conical wheels (31) and flexible sleeves (30) are fixedly sleeved on the shaft sleeve (32), the flexible conical wheels (31) and the flexible sleeves (30) on the same shaft sleeve (32) are alternately arranged, and the flexible conical wheels (31) and the flexible sleeves (30) on adjacent shaft sleeves (32) are arranged in a staggered manner, so that an enveloping space (64) for agricultural products (42) is formed between the adjacent flexible conical wheels (31); an annular synchronizing wheel rack (28) is arranged on the inner sides of the two long chains (34), the synchronizing wheel rack (28) is fixedly installed and connected with the shell box body relatively through a supporting structure (29), the peripheral surface of the outer ring of the synchronizing wheel rack (28) is provided with a rack structure, and the rack structure of the outer ring of a synchronizing wheel (35) of each set of wheel assembly is meshed and connected with the rack structure of the outer ring of the synchronizing wheel rack (28);

the device (4) for removing small foreign matters by the flexible differential roller is arranged at an outlet at the upper end of a shell box body of the chain rod type flexible conical wheel dry-type soil removing device (2), and comprises a shell plate, a plurality of flexible rollers (38) which are arranged in parallel at equal intervals, a transmission device (19) and an inclination adjusting mechanism (22); the transmission (19) comprises a flexible roller drive motor (21) and a short drive chain (39); the two outer shell plates are vertically and parallelly fixed on two sides of the inlet rack (23) along the conveying direction, the flexible rollers (38) are arranged at equal intervals along the conveying direction and are hinged between the two outer shell plates, the same end shafts of every two adjacent flexible rollers (38) are in chain transmission connection by a group of short driving chains (39), the end shaft of one flexible roller (38) of the flexible rollers (38) is coaxially connected with the output shaft of the flexible roller driving motor (21), and the flexible roller driving motor (21) is fixed on one outer shell plate; an inner core of the flexible roller (38) is made of square metal alloy, a polyurethane elastic material is sleeved on the outer surface of the inner core, and a plurality of strip-shaped pores with similar triangular holes are uniformly distributed in the polyurethane elastic material at intervals along the circumference;

the automatic sorting device (43) is arranged at an outlet of the small foreign matter removing device (4) of the flexible differential roller, and specifically comprises a conveyor belt group (6), a sorting executing mechanism (7), a visual detection unit (8), a flexible buffer piece (14), a baffle (15) and an outlet rack (11); the conveying belt group (6) comprises three conveying belts of a feeding conveying belt (44), a discharging conveying belt (48) and a foreign matter conveying belt (49); the feeding conveyer belt (44) is arranged on the inlet rack (23), and the inlet side of the feeding conveyer belt (44) is connected with the conveying outlets of six flexible rollers (38) of the flexible differential roller small foreign matter removing device (4); the discharging conveyer belt (48) is positioned in front of and obliquely below the outlet side of the feeding conveyer belt (44) and is used for receiving the agricultural products from the feeding conveyer belt (44) and conveying the agricultural products out; the foreign matter conveying belt (49) is positioned right below the gap between the feeding conveying belt (44) and the discharging conveying belt (48) and is used for receiving and conveying the foreign matters from the feeding conveying belt (44); a flexible buffer piece (14) is arranged above one side of the discharging conveying belt (48) close to the feeding conveying belt (44), one side of the flexible buffer piece (14) is of a wedge-shaped protruding structure, and one side of the protruding structure far away from the feeding conveying belt (44) is of a wedge shape; the sorting execution mechanism (7) is arranged right above one side of the discharging conveying belt (48) close to the feeding conveying belt (44), and specifically comprises a connecting plate (60) and a plurality of deflector rod cylinder assemblies which are arranged in parallel side by side and are arranged inside the connecting plate (60), the connecting plate (60) is arranged on the outlet frame (11), each deflector rod cylinder assembly comprises a deflector rod piece (47) and a cylinder (62), the top end of the deflector rod piece (47) is hinged with a U-shaped opening end at the lower end of a U-shaped connecting piece I (59), the upper end folding end of the U-shaped connecting piece I (59) is fixedly connected with the connecting plate (60), the side surface of the top of the deflector rod piece (47) far away from one side of the feeding conveying belt (44) is hinged with a U-shaped opening end of a U-shaped connecting piece II (61), the folding end of the U-shaped connecting piece II (61) is fixedly connected with an output rod of the cylinder (62), and the, the folding end of the U-shaped connecting piece III (63) is fixedly connected with the connecting plate (60).

2. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the flexible cone-shaped wheel (31) is divided into a structure with two sections of round tables and a structure with one section of round sleeve, the small ends of the two sections of round tables are oppositely arranged, and the small ends of the two sections of round tables are connected through the round sleeve to form an integral structure.

3. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the chain rod type flexible conical wheel dry-type soil removing device (2) and the flexible differential roller small foreign matter removing device (4) are provided with foreign matter conveying plates (25) below, the bottoms of the foreign matter conveying plates (25) are installed on the inlet rack (23), and the foreign matter conveying plates (25) are obliquely and upwards arranged from the chain rod type flexible conical wheel dry-type soil removing device (2) to the bottom of the flexible differential roller small foreign matter removing device (4).

4. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the inlet frame (23) is constructed by a plurality of rod pieces, wherein the rod pieces connected to the two shell plates of the flexible differential roller small foreign body removing device (4) are telescopic rods (20); the bottom of one end of each of the two outer shell plates of the flexible differential roller small foreign matter removing device (4) which is arranged close to the chain rod type flexible conical wheel dry-type soil removing device (2) is connected with an inlet rack (23) through an inclination adjusting mechanism (22), and the height of a telescopic rod (20) at the bottom of each outer shell plate is adjusted through the inclination adjusting mechanism (22), so that the inclination adjustment of six flexible rollers (38) is realized; the inclination adjusting mechanism (22) mainly comprises a bolt and a disc fixed at the bottom of the bolt, the top end of the bolt is connected with a threaded hole at the bottom of the shell plate in a threaded mode to form a thread pair, the bottom end of the bolt is sleeved in a through hole of the inlet rack (23) through an optical axis, the disc is rotated to drive the bolt to rotate, and the shell plate is driven to move up and down at one end, close to the arrangement of the chain-rod type flexible conical wheel dry soil removing device (2), of the shell plate through the thread pair.

5. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: a curtain cloth I (3) is arranged between the chain rod type flexible conical wheel dry soil removing device (2) and the flexible differential roller small foreign matter removing device (4), and a curtain cloth II (5) is arranged between the flexible differential roller small foreign matter removing device (4) and a feeding conveyer belt (44) of the automatic sorting device (43).

6. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the inlet frame (23) is divided into two parts at the bottom of the flexible differential roller small foreign matter removing device (4) and the conveying belt group (6), the two parts are detachably connected through a detachable connecting mechanism (17), and the detachable connecting mechanism (17) is of a mortise and tenon structure which is matched with the tenon and mortise structure connected through bolts.

7. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the visual detection unit (8) is arranged right above the discharging conveying belt (48) and comprises a box body (51), and a laser (54) and a camera (50) which are arranged in the box body (51); the box body (51) is fixed on the outlet frame (11) and is positioned above the discharging conveying belt (48) and the sorting actuating mechanism (7), the camera (50) and the laser (54) are respectively arranged on the camera fixing rod (52) and the laser fixing rod (53) through a connecting piece I (56) and a connecting piece II (57), the connecting piece I (56) and the connecting piece II (57) are fixedly connected through a bolt III (55), the camera fixing rod (52) and the laser fixing rod (53) are respectively fixedly connected to the box body (51) through bolts IV (58) at two end parts, by changing the connecting position of the bolts IV (58) at the two end parts and the box body (51) and changing the mounting positions and mounting angles of the connecting sheets I (56) and II (57) on the camera fixing rod (52) and the laser fixing rod (53), so that the position and tilt angle of the camera (50) and laser (54) are independently adjustable; the housing (51) is open at one end adjacent the infeed conveyor (44) and the camera (50) and laser (54) detection ends are disposed through the opening toward the exit end of the infeed conveyor (44).

8. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 7, wherein: the visual detection unit (8) is integrally hinged to the outlet frame (11) through a bolt I (45), and the height and the inclination angle of the visual detection unit are adjusted by adjusting the positions of the bolt I (45) in a straight chute on the outlet frame (11) and a semi-arc chute on the box body (51).

9. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: connecting plate (60) install on export frame (11) through selecting separately actuating mechanism position control device (10), select separately actuating mechanism position control device (10) including bolt II (46) and supporting nut and set up the bar groove on export frame (11), pass bar groove, the through-hole back coupling nut of connecting plate (60) of export frame (11) with bolt II (46) to be connected connecting plate (60) and export frame (11).

10. The apparatus for removing foreign matter from harvested agricultural products as claimed in claim 1, wherein: the foreign matter conveying belt (49) is provided with a baffle (15) above one side close to the feeding conveying belt (44).

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