Impurity removal mechanism of cyperus esculentus harvester and use method of impurity removal mechanism

Abstract

The invention belongs to the technical field of cyperus esculentus harvesting, and particularly relates to an impurity removing mechanism of a cyperus esculentus harvester and a using method thereof.The impurity removing mechanism comprises a first mounting frame, the first mounting frame is fixedly mounted in the cyperus esculentus harvester, and a second mounting frame is fixedly mounted at the left end of the first mounting frame; a driving motor is fixedly mounted on the upper side of the second mounting frame, a protective shell is fixedly mounted in the first mounting frame, a feeding cover plate is rotatably mounted at the upper end of the protective shell, a feeding channel is formed in the left end of the feeding cover plate, and a first drum screen is fixedly mounted in the protective shell; through openings are formed in the upper sides of the left end and the right end of the first drum screen, a reverse baffle is fixedly installed in the feeding channel, and an impurity discharging door is arranged in the right end of the first drum screen. Through the arrangement of the material turning assembly, the anti-blocking assembly and the secondary impurity removal assembly, multi-stage impurity removal of the cyperus esculentus is achieved, impurities are prevented from being blocked in the impurity removal mechanism, and the impurity removal effect and harvesting efficiency of the cyperus esculentus are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cyperus esculentus harvesting, in particular to a foreign matter removing mechanism of a cyperus esculentus harvester and a method of using the same. BACKGROUND

[0002] Cyperus esculentus is an oil extracted from the seeds of cyperus esculentus plants, an economic crop rich in unsaturated fatty acids. Cyperus esculentus, also known as sedge, ground almond, and underground chestnut, is an economic crop that combines grain, oil, pasture, and feed in one. It has high economic value and sand prevention and control effects. The aboveground part of cyperus esculentus can be used as forage grass, while the underground tubers are rich in fat, starch, and protein, which can be used for oil extraction, wine making, candy making, and beverage making. Cyperus esculentus is native to African and Mediterranean coastal countries and has been widely distributed in tropical and subtropical regions of Africa, Europe, Asia, North America, and Latin America. This plant has strong adaptability and can grow in various soil and climate conditions, especially in sandy and saline-alkali soils. Cyperus esculentus oil is considered a high-quality healthy edible oil due to its high content of unsaturated fatty acids, which can lower blood sugar, improve gut flora, reduce the risk of cancer, and improve constipation. In addition, cyperus esculentus has a high protein content and is easily digestible, making it a nutritious food ingredient. During the harvesting of cyperus esculentus, a harvester is needed. Cyperus esculentus harvester is an agricultural machine specifically designed for harvesting cyperus esculentus. The use of cyperus esculentus harvester has solved the problem of time-consuming and labor-intensive manual harvesting, enabling large-scale harvesting and improving harvesting efficiency.

[0003] A patent with the publication number CN119452877A discloses a foreign matter removing mechanism of a cyperus esculentus harvester and a method thereof. The technical solution points of the patent are as follows: a support chassis is provided with two support plates above the top end of the support chassis. The invention is installed on the cyperus esculentus harvester through the cooperation of the screening drum, annular rolling groove, support roller, gear ring, power motor, gear one, feed inlet, discharge pipe, and sealing door. The power motor drives the gear one and gear ring to rotate, allowing the screening drum to rotate between the two sets of support rollers, and the soil and other impurities on the surface of the cyperus esculentus are screened out. The cyperus esculentus harvester has a foreign matter removing mechanism, which can remove the impurities from the harvested cyperus esculentus, reducing the subsequent foreign matter removing process and effectively improving the harvesting efficiency of cyperus esculentus.

[0004] However, the above-mentioned technology has the following defects: when collecting and removing impurities from cyperus esculentus by the above-mentioned technology, the power motor drives the screening cylinder to rotate through the gear ring, the gear ring drives the rotating rod to rotate through the gear two, and the connecting block on the outer surface of the cleaning plate can clean the outer surface of the screening cylinder. However, during the screening process of sand and cyperus esculentus through the screening cylinder, sand and cyperus esculentus can be screened out from the inside of the screening cylinder, which can easily cause blockage in the inside of the screening cylinder rather than the outside of the screening cylinder, and the screening structure is single, which cannot separate and remove impurities of larger or smaller sand and cyperus esculentus, thereby affecting the impurity removal effect and harvesting efficiency.

[0005] Therefore, the application provides a kind of impurity removal mechanism of cyperus esculentus harvester and its use method. SUMMARY

[0006] In order to make up for the shortcomings of the prior art, at least one technical problem in the background art is solved.

[0007] The technical scheme adopted by the application to solve its technical problems is: the impurity removal mechanism of the cyperus esculentus harvester comprises a first mounting frame, the first mounting frame is fixedly installed in the cyperus esculentus harvester, a second mounting frame is fixedly installed at the left end of the first mounting frame, a drive motor is fixedly installed on the upper side of the second mounting frame, a protective shell is fixedly installed in the first mounting frame, a feeding cover plate is rotatably installed at the upper end of the protective shell, a feeding channel is provided at the left end of the feeding cover plate, a first cylinder screen is fixedly installed in the protective shell, a through opening is formed on the upper side of the left and right ends of the first cylinder screen, a reverse baffle is fixedly installed in the feeding channel, a impurity removal door is arranged in the right end of the first cylinder screen, a material turning assembly is arranged in the first cylinder screen, a anti-blocking assembly is arranged in the first cylinder screen, a secondary impurity removal assembly is arranged in the protective shell, and the material turning assembly, the anti-blocking assembly and the secondary impurity removal assembly are connected with the output shaft of the drive motor.

[0008] As a preferred technical scheme of the present application, a controller is arranged on the upper side of the second mounting frame, and the controller is connected with the drive motor through a data line.

[0009] As a preferred technical scheme of the present application, the material turning assembly comprises two groups of bearing seats, the two groups of bearing seats are fixedly installed on the upper side of the second mounting frame and in the protective shell respectively, a connecting seat is fixedly installed on the right side of the protective shell, a material turning shaft is rotatably installed in the first cylinder screen, the left and right ends of the material turning shaft are respectively inserted into the two groups of bearing seats and the connecting seat, the right end of the material turning shaft is fixedly connected with the output shaft of the drive motor, a plurality of material turning arms are annularly installed on the material turning shaft, a material turning plate is fixedly installed on each of the plurality of material turning arms, and the plurality of material turning plates are arranged in parallel with the inner wall of the first cylinder screen.

[0010] As a preferred technical solution of the present application, the anti-blocking assembly comprises a first gear fixedly installed at the right end of the material turning shaft, two groups of rotating plates rotatably installed in the first cylinder screen, scraper plates fixedly installed between the upper and lower ends of the two groups of rotating plates, and two groups of first cylinder screens abutting the inner walls of the two groups of scraper plates.

[0011] As a preferred technical solution of the present application, the plurality of material turning plates are arc-shaped, the plurality of material turning arms are annularly and staggeringly arranged, and the spacing between the plurality of material turning plates and the first cylinder screen is greater than the thickness of the two groups of scraper plates.

[0012] As a preferred technical solution of the present application, the secondary impurity removal assembly comprises a secondary screening box fixedly installed in the protective shell, the lower end of the first cylinder screen is located in the secondary screening box, the left end of the material turning shaft is fixedly installed with a rotating disc, a pin shaft is fixedly installed on the left side eccentric circle of the rotating disc, a fixed seat is fixedly installed in the left end of the secondary screening box, a fulcrum is fixedly installed on the lower side of the fixed seat, a swing rod is installed on the fulcrum and the drill hole, a sliding groove is formed on the upper side of the swing rod, the pin shaft is movably inserted into the sliding groove, a push plate is arranged at the lower end of the swing rod, and the push plate abuts the inner wall of the lower side of the secondary screening box.

[0013] As a preferred technical solution of the present application, the right end of the first cylinder screen is provided with a discharge hopper, the lower end of the discharge hopper is provided with a discharge valve, and the lower end of the protective shell is provided with an impurity outlet.

[0014] As a preferred technical solution of the present application, the inner wall of the lower end of the impurity outlet is obliquely arranged, and the lower side inner wall of the left end of the impurity outlet is lower than the lower side inner wall of the right end.

[0015] As a preferred technical solution of the present application, the right end of the feed cover plate is provided with an air outlet channel, the air outlet channel abuts the through hole provided at the right end of the first cylinder screen, the left side of the first mounting bracket is fixedly installed with a fan, the protective shell is fixedly installed with a blowing pipe, and the blowing pipe abuts the lower end of the first cylinder screen.

[0016] A method for using the impurity removal mechanism of the cyperus esculentus harvester, which comprises the following steps: S1, the corylus avellana in the land is harvested by the corylus avellana harvester, the corylus avellana collected is sent into the first cylinder screen through the feed channel, the driving motor is started, the driving motor output shaft drives the material turning shaft, multiple sets of material turning arms and multiple sets of material turning plates to rotate in the first cylinder screen, so that the corylus avellana input into the first cylinder screen is turned, and the corylus avellana and smaller impurities are screened into the secondary screening box through the lower end of the first cylinder screen, and the larger soil and plant leaf residues collected together when the corylus avellana is collected by the corylus avellana harvester remain in the first cylinder screen, so that the first impurity removal of the corylus avellana is completed; S2, while the material turning shaft is rotating, the two sets of rotating plates and the two sets of scraping plates are driven to rotate by the first gear, the second gear and the multiple sets of gear rings, so that the two sets of rotating plates and the two sets of scraping plates rotate in the first cylinder screen, so that the holes blocked at the lower end of the first cylinder screen are scraped, so that smaller impurities are prevented from being blocked at the lower end of the first cylinder screen, and the screening of the corylus avellana is affected; S3, when the material turning shaft is rotating, the pin shaft is driven to do circular motion in the sliding groove by the rotating disc, the pin shaft does circular motion and drives the swing rod to do reciprocating swing motion at the fulcrum, the swing rod reciprocates up and down and drives the pushing plate to reciprocate in the lower end of the secondary screening box, so that the corylus avellana and impurities in the first cylinder screen are shaken, the screening efficiency of smaller impurities through the lower end of the secondary screening box is improved, then the discharge valve is opened, the corylus avellana falls out from the left end of the discharge hopper, so that the corylus avellana after screening is conveniently collected, smaller impurities are discharged and fall into the protective shell through the lower end of the protective shell, and the impurities are discharged from the impurity outlet at the lower end of the protective shell. S4, after the collected corylus avellana and larger plant leaves are separated by the first cylinder screen, the air flow generated by the fan blows upward into the first cylinder screen through the blowing pipe, and the lighter impurities remaining in the first cylinder screen are discharged through the through hole at the right end of the first cylinder screen and the air outlet channel at the right end of the feed cover plate.

[0017] The beneficial effects of the application are as follows: 1. The impurity removal mechanism of the cyperus esculentus harvester and the use method thereof, when in use, the cyperus esculentus in the land is harvested by the cyperus esculentus harvester, the collected cyperus esculentus is sent into the first cylinder screen through the feeding channel, the driving motor is started, the driving motor output shaft drives the material turning assembly to rotate in the first cylinder screen, and then the cyperus esculentus put into the first cylinder screen is turned over, and at the same time of turning over, the cyperus esculentus and smaller impurities are screened into the secondary impurity removal assembly through the lower end of the first cylinder screen, and the larger soil and plant leaf residues collected together by the cyperus esculentus harvester during the collection of the cyperus esculentus remain in the first cylinder screen, so that the first-stage impurity removal of the cyperus esculentus is completed, the holes blocked at the lower end of the first cylinder screen are scraped and cleaned by the anti-blocking assembly while the material turning assembly rotates, so that the smaller impurities are prevented from being blocked at the lower end of the first cylinder screen and affecting the screening of the cyperus esculentus, the multi-stage impurity removal of the cyperus esculentus is realized by the material turning assembly, the anti-blocking assembly and the secondary impurity removal assembly, the impurities are prevented from being blocked in the impurity removal mechanism, and the impurity removal effect and the harvesting efficiency of the cyperus esculentus are improved.

[0018] 2. The impurity removal mechanism of the cyperus esculentus harvester and the use method thereof, the material turning assembly continues to rotate, drives the secondary impurity removal assembly to reciprocate, makes the cyperus esculentus and impurities in the secondary screening box move, improves the screening efficiency of the smaller impurities through the lower end of the secondary impurity removal assembly, then the cyperus esculentus is collected, the smaller impurities and the cyperus esculentus are discharged and separated from the secondary impurity removal assembly, and the secondary impurity removal of the cyperus esculentus is completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below with reference to the drawings.

[0020] Figure 1 is a perspective view of the application; Figure 2 is a right view structural section view of the application; Figure 3 is a left view structural section view of the application; Figure 4 is a front view structural section view of the first cylinder screen in the application; Figure 5 is a front view structural view of the secondary screening box in the application; Figure 6 is a front view structural view of the material turning assembly in the application; Figure 7 is a left view structural view of the secondary impurity removal assembly in the application; Figure 8 is Figure 4 is a local enlarged view of A in the application.

[0021] In the diagram: 1. First mounting bracket; 2. Second mounting bracket; 3. Controller; 4. Drive motor; 5. Protective housing; 6. Feed cover plate; 7. Feed channel; 8. Air outlet channel; 9. First drum screen; 10. Through port; 11. Secondary screening box; 12. Bearing seat; 13. Connecting seat; 14. Tilting shaft; 15. Tilting arm; 16. Tilting plate; 17. First gear; 18. Rotating plate; 19. Scraper; 20. Second gear; 21. Gear ring; 22. Turntable; 23. Pin; 24. Fixed seat; 25. Fusel point; 26. Swing rod; 27. Slide groove; 28. Actuating plate; 29. ​​Fan; 30. Air duct; 31. Discharge hopper; 32. Discharge valve; 33. Impurity outlet; 34. Reverse baffle; 35. Impurity discharge door. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 8 As shown in the embodiment of the present invention, a cleaning mechanism for a tiger nut harvester includes a first mounting frame 1, which is fixedly installed inside the tiger nut harvester. A second mounting frame 2 is fixedly installed on the left end of the first mounting frame 1. A drive motor 4 is fixedly installed on the upper side of the second mounting frame 2. A protective shell 5 is fixedly installed inside the first mounting frame 1. A feed cover 6 is rotatably installed on the upper end of the protective shell 5. A feed channel 7 is provided on the left end of the feed cover 6. A first cylindrical screen 9 is fixedly installed inside the protective shell 5. Openings 10 are provided on the upper sides of both the left and right ends of the first cylindrical screen 9. A baffle 34 is fixedly installed inside the feed channel 7. A discharge gate 35 is provided inside the right end of the first cylindrical screen 9. A turning component and an anti-blocking component are provided inside the first cylindrical screen 9. A secondary cleaning component is provided inside the protective shell 5. The turning component, the anti-blocking component, and the secondary cleaning component are connected to the output shaft of the drive motor 4.

[0024] The design of the material turning component ensures the uniform distribution and effective turning of tiger nuts within the first drum screen 9, which not only promotes the separation of tiger nuts from impurities but also improves screening efficiency. The ingenious use of the anti-clogging component, through its rotating scraping action, effectively prevents the clogging of the lower holes of the first drum screen 9, ensuring the smooth progress of the impurity removal process. Furthermore, the setting of the secondary impurity removal component further enhances the impurity removal effect. Through reciprocating motion and screening action, a more thorough separation of tiger nuts from impurities is achieved.

[0025] like Figures 1 to 2 As shown, a controller 3 is provided on the upper side of the second mounting bracket 2, and the controller 3 is connected to the drive motor 4 via a data cable.

[0026] Through the setting of the controller 3, the working state of the driving motor 4 can be monitored in real time by the staff, so as to ensure the stability and reliability of the whole impurity removal process, and in the specific implementation process, when the driving motor 4 appears abnormal or fails, the controller 3 can timely issue an alarm to remind the staff to overhaul or replace, so as to ensure the continuous and efficient operation of the cyperus rotundus harvester.

[0027] As shown in Figures 4 to 6 The material turning assembly comprises two groups of bearing seats 12, which are fixedly installed on the upper side of the second mounting frame 2 and in the protective shell 5 respectively, the right side of the protective shell 5 is fixedly installed with a connecting seat 13, the first cylinder screen 9 is rotatably installed with a material turning shaft 14, the left and right ends of the material turning shaft 14 are respectively inserted into the two groups of bearing seats 12 and the connecting seat 13, the right end of the material turning shaft 14 is fixedly connected with the output shaft of the driving motor 4, a plurality of material turning arms 15 are annularly installed on the material turning shaft 14, and a plurality of material turning plates 16 are fixedly installed on the plurality of material turning arms 15, and the plurality of material turning plates 16 are arranged in parallel with the inner wall of the first cylinder screen 9.

[0028] The output shaft of the driving motor 4 drives the material turning shaft 14 to rotate in the first cylinder screen 9, so that the plurality of material turning arms 15 and the plurality of material turning plates 16 rotate with the material turning shaft 14, and since they are arranged in parallel with the inner wall of the first cylinder screen 9, the cyperus rotundus in the first cylinder screen 9 can be effectively turned and mixed, so that the cyperus rotundus can be evenly distributed in the first cylinder screen 9, and at the same time, the turning and mixing process also helps to separate the cyperus rotundus from the impurities, thereby improving the screening efficiency.

[0029] As shown in Figures 5 to 8 The anti-blocking assembly comprises a first gear 17, which is fixedly installed on the right end of the material turning shaft 14, two groups of rotating plates 18 are rotatably installed in the first cylinder screen 9, a scraper 19 is fixedly installed between the upper and lower ends of each group of rotating plates 18, the two groups of scrapers 19 are attached to the inner walls of the two groups of first cylinder screens 9, the right side of the rotating plate 18 in the right end of the first cylinder screen 9 is provided with a second gear 20, and a plurality of gear rings 21 are arranged between the second gear 20 and the first gear 17.

[0030] When the rotating shaft 14 rotates, the first gear 17 drives the second gear 20 and the plurality of gear rings 21 to rotate synchronously, and the second gear 20 and the plurality of gear rings 21 serve as transmission members to ensure that the rotating power of the first gear 17 is smoothly transmitted to the two sets of rotating plates 18, thereby driving the two sets of rotating plates 18 and the two sets of scrapers 19 thereon to rotate in the first cylinder screen 9. Since the two sets of scrapers 19 are closely attached to the inner wall of the first cylinder screen 9, with the rotation of the two sets of rotating plates 18, the two sets of scrapers 19 can effectively clean and scrape the impurities and possibly blocked holes on the inner wall of the first cylinder screen 9, not only preventing larger impurities from being blocked at the lower end of the first cylinder screen 9, but also keeping the screening holes at the lower end of the first cylinder screen 9 unblocked, thereby ensuring the effective separation of oil bean from larger impurities and further improving the impurity removal efficiency and screening quality.

[0031] As shown in Figures 5 to 8 , the plurality of turning plates 16 are arc-shaped, the plurality of turning arms 15 are arranged in a ring-shaped staggered manner, and the distance between the plurality of turning plates 16 and the first cylinder screen 9 is greater than the thickness of the two sets of scrapers 19.

[0032] According to the shape and position of the plurality of turning plates 16, interference between the plurality of turning plates 16 and the two sets of scrapers 19 can be avoided during the turning and mixing of oil beans, ensuring smooth turning and mixing. In addition, the arc-shaped design of the plurality of turning plates 16 also helps to uniformly move the oil beans, thereby uniformly distributing the oil beans in the first cylinder screen 9 and effectively separating the impurities. Furthermore, the ring-shaped staggered arrangement of the plurality of turning arms 15 not only enhances the turning and mixing effect, but also improves the structural strength of the entire turning assembly, making it more durable.

[0033] As shown in Figures 5 to 7 , the secondary impurity removal assembly includes a secondary screening box 11, the secondary screening box 11 is fixedly installed in the protective shell 5, the lower end of the first cylinder screen 9 is located in the secondary screening box 11, the left end of the rotating shaft 14 is fixedly installed with a rotating disc 22, the left side of the rotating disc 22 is fixedly installed with a pin shaft 23, the left end of the secondary screening box 11 is fixedly installed with a fixed seat 24, the lower side of the fixed seat 24 is fixedly installed with a fulcrum 25, the fulcrum 25 is installed with a swing rod 26, the upper side of the swing rod 26 is provided with a sliding groove 27, the pin shaft 23 is movably inserted into the sliding groove 27, the lower end of the swing rod 26 is provided with a moving plate 28, and the moving plate 28 is attached to the inner wall of the lower side of the secondary screening box 11.

[0034] During the rotation of the material turning shaft 14, the rotating disc 22 rotates with it, and since the pin shaft 23 is fixedly installed on the left eccentric circle of the rotating disc 22, the pin shaft 23 will slide along the inner wall of the sliding groove 27 during rotation, so that the swing rod 26 swings reciprocatingly at the fulcrum 25, and in turn drives the poking plate 28 to reciprocate in the lower end of the secondary screening box 11. The reciprocating movement of the poking plate 28 will produce a poking effect on the oil palm and impurities in the secondary screening box 11, which helps the smaller impurities to pass through the screening holes at the lower end of the secondary screening box 11 more quickly, improves the screening efficiency, and at the same time, ensures the uniform distribution of the oil palm during the screening process, avoiding the problem of uneven screening caused by local accumulation.

[0035] As shown in Figures 1 to 3 , the right end of the first cylinder screen 9 is provided with a discharge hopper 31, and the lower end of the discharge hopper 31 is provided with a discharge valve 32. The lower end of the protective shell 5 is provided with an impurity outlet 33.

[0036] The setting of the discharge hopper 31 and the discharge valve 32 facilitates the smooth sliding of the oil palm out after the screening is completed. As a control component, the discharge valve 32 controls the collection and discharge of the screened oil palm by opening or closing the lower end of the discharge hopper 31, which is not only simple to operate, but also can effectively prevent the loss of oil palm during the collection process. The impurity outlet 33 helps the small impurities to slide out smoothly under the action of gravity, avoiding the accumulation of impurities in the lower end of the protective shell 5, and ensuring the continuous and efficient operation of the impurity removal mechanism.

[0037] As shown in Figures 1 to 3 , the inner wall of the lower end of the impurity outlet 33 is inclined, and the inner wall of the lower left end of the impurity outlet 33 is lower than that of the lower right end.

[0038] The inclined inner wall design makes the small impurities slide more smoothly during the sliding process, avoiding the retention and accumulation of impurities in the inner wall of the lower end of the impurity outlet 33, thereby ensuring the efficient operation and long service life of the impurity removal mechanism, and facilitating the cleaning and maintenance of the impurities by the workers, reducing the difficulty and labor intensity of the work.

[0039] As shown in Figures 1 to 3 , the right end of the feed cover plate 6 is provided with an air outlet channel 8, the air outlet channel 8 is attached to the through hole 10 provided at the right end of the first cylinder screen 9, the left side of the first mounting frame 1 is fixedly installed with a fan 29, and the protective shell 5 is fixedly installed with a blowing pipe 30, which is attached to the lower end of the first cylinder screen 9.

[0040] In the process of impurity removal, the airflow generated by the fan 29 is uniformly blown into the first cylinder screen 9 through the blowing pipe 30. The force of the airflow not only helps to smoothly remove the light impurities such as dust and broken leaves remaining in the first cylinder screen 9 through the through port 10 at the right end of the first cylinder screen 9 and the air outlet channel 8 at the right end of the feed cover plate 6, reduces the residue of impurities in the first cylinder screen 9, and improves the thoroughness of impurity removal, but also can disturb the oil palm to a certain extent, so that the oil palm is more evenly distributed in the first cylinder screen 9, further promoting the separation of the oil palm and the impurities. In addition, the design of the air outlet channel 8 and the through port 10 ensures smooth airflow, avoiding the decline of the impurity removal effect caused by airflow leakage.

[0041] A method for using the impurity removal mechanism of the oil palm harvesting machine, which adopts the above-mentioned technical impurity removal mechanism of the oil palm harvesting machine, comprising the following steps: S1, the oil palm harvesting machine is used to harvest the oil palm in the land, and the collected oil palm is sent into the first cylinder screen 9 through the feed channel 7. The driving motor 4 is started, and the driving motor 4 output shaft drives the turning shaft 14, multiple sets of turning arms 15 and multiple sets of turning plates 16 to rotate in the first cylinder screen 9, thereby turning the oil palm put into the first cylinder screen 9, and then screening the oil palm and smaller impurities into the secondary screening box 11 through the lower end of the first cylinder screen 9, and the larger soil and plant leaf residues collected together by the oil palm harvesting machine remain in the first cylinder screen 9, thereby completing the first-stage impurity removal of the oil palm; S2, while the turning shaft 14 is rotating, the two sets of turning plates 18 and the two sets of scraping plates 19 are driven to rotate by the first gear 17, the second gear 20 and the multiple sets of gear rings 21, so that the two sets of turning plates 18 and the two sets of scraping plates 19 rotate in the first cylinder screen 9, thereby cleaning and scraping the holes blocked at the lower end of the first cylinder screen 9, avoiding the smaller impurities from being blocked at the lower end of the first cylinder screen 9, and affecting the screening of the oil palm; S3, while the turning shaft 14 is rotating, the pin shaft 23 makes circular motion in the sliding groove 27 driven by the rotating disc 22, and the pin shaft 23 makes circular motion to drive the swing rod 26 to make reciprocating swing motion on the fulcrum 25. When the swing rod 26 moves up and down reciprocally, the toggle plate 28 moves reciprocally in the lower end of the secondary screening box 11, thereby making the oil palm and impurities in the first cylinder screen 9 vibrate, improving the screening efficiency of the smaller impurities through the lower end of the secondary screening box 11, then opening the discharge valve 32, so that the oil palm slides out from the left end of the discharge hopper 31, thereby facilitating the collection of the screened oil palm, and the smaller impurities are discharged and fall into the protective shell 5 through the lower end of the secondary screening box 11, and then slide out from the impurity outlet 33 at the lower end of the protective shell 5; S4, after the collected Cyperus esculentus and larger plant leaves are separated from impurities by the first cylinder screen 9, the fan 29 generates airflow through the blowing pipe 30 to blow upward into the first cylinder screen 9, and the lighter impurities remaining in the first cylinder screen 9 are discharged through the through port 10 at the right end of the first cylinder screen 9 and the air outlet channel 8 at the right end of the feeding cover plate 6.

[0042] Working principle: when the impurity removing mechanism of the cyperus esculentus harvester is used, first of all, the cyperus esculentus in the land is harvested by the cyperus esculentus harvester, and the collected cyperus esculentus is sent into the first cylinder screen 9 through a specific path and a feeding channel 7. At this time, the driving motor 4 is started, and the output shaft starts to work, driving the material turning shaft 14 to rotate in the first cylinder screen 9. The rotation of the material turning shaft 14 drives multiple groups of material turning arms 15 and multiple groups of material turning plates 16 to turn and mix the cyperus esculentus in the first cylinder screen 9, ensuring that the cyperus esculentus is evenly distributed in the first cylinder screen 9. In the process of turning and mixing, the cyperus esculentus and impurities are gradually separated. Smaller impurities and cyperus esculentus then enter the secondary screening box 11 through the screening holes at the lower end of the first cylinder screen 9, while larger impurities such as soil and plant leaves are retained in the first cylinder screen 9 due to their larger size, thus completing the first-stage impurity removal of the cyperus esculentus. At the same time, the anti-blocking assembly also plays a key role. With the rotation of the material turning shaft 14, the material turning shaft 14 drives the first gear 17, the second gear 20 and multiple groups of gear rings 21 to start synchronous rotation, thereby driving the two groups of rotating plates 18 and the two groups of scraping plates 19 to rotate in the first cylinder screen 9. Since the two groups of scraping plates 19 are closely attached to the inner wall of the first cylinder screen 9, they can effectively clean and scrape the impurities on the inner wall of the first cylinder screen 9 and the holes that may be blocked, preventing the blocking of larger impurities at the lower end of the first cylinder screen 9 and ensuring the smooth progress of the impurity removal process. Next, the continued rotation of the material turning shaft 14 will drive the pin shaft 23 to move in a circular motion. During the movement, the pin shaft 23 moves along the inner wall of the sliding groove 27, causing the swing rod 26 to produce reciprocating swing motion at the fulcrum 25, further driving the poking plate 28 to move reciprocally at the lower end of the secondary screening box 11. The movement of the poking plate 28 effectively pokes the cyperus esculentus and impurities in the secondary screening box 11, further promoting the separation of the cyperus esculentus and impurities and speeding up the passage of smaller impurities through the screening holes at the lower end of the secondary screening box 11, thereby improving the overall screening efficiency. At this time, the discharge valve 32 is opened, and the screened cyperus esculentus can be smoothly discharged from the discharge hopper 31, facilitating the collection of the cyperus esculentus by the workers, while the smaller impurities are discharged through the lower end of the protective shell 5 and slide out of the impurity outlet 33, completing the secondary impurity removal of the cyperus esculentus. In addition, when the collected cyperus esculentus and larger plant leaves are separated by the first cylinder screen 9, the fan 29 starts to work, generating airflow and blowing it upward into the first cylinder screen 9 through the blowing pipe 30. Not only does it help to remove the lighter impurities such as dust and broken leaves remaining in the first cylinder screen 9 through the through hole 10 at the right end of the first cylinder screen 9 and the air outlet channel 8 at the right end of the feeding cover plate 6, reducing the residue of impurities in the first cylinder screen 9 and improving the thoroughness of impurity removal, but the airflow also causes a certain disturbance to the cyperus esculentus, making the distribution of the cyperus esculentus in the first cylinder screen 9 more uniform and further promoting the separation of the cyperus esculentus and impurities.

[0043] The above-mentioned front, rear, left, right, up and down are based on the drawings in the specification Figure 1For the sake of reference, according to the standard of the perspective of the person, the side of the device facing the observer is defined as front, the left side of the observer is defined as left, and the like.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0045] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A chaff removing mechanism of a chufa harvesting machine, comprising a first mounting frame (1) fixedly installed in the chufa harvesting machine, characterized in that: The left end of the first mounting frame (1) is fixedly installed with a second mounting frame (2), the upper side of the second mounting frame (2) is fixedly installed with a driving motor (4), the first mounting frame (1) is fixedly installed with a protective shell (5) in the inside, the upper end of the protective shell (5) is rotatably installed with a feeding cover plate (6), the left end of the feeding cover plate (6) is provided with a feeding channel (7), the protective shell (5) is fixedly installed with a first cylinder screen (9) in the inside, the upper sides of the left and right ends of the first cylinder screen (9) are both provided with a through port (10), the feeding channel (7) is fixedly installed with a reverse baffle (34) in the inside, the right end of the first cylinder screen (9) is provided with a removal door (35) in the inside, the first cylinder screen (9) is provided with a material turning assembly, the first cylinder screen (9) is provided with an anti-blocking assembly, the protective shell (5) is provided with a secondary removal assembly, and the material turning assembly, the anti-blocking assembly and the secondary removal assembly are connected with the output shaft of the driving motor (4).

2. The impurity removing mechanism of the cyperus esculentus harvester according to claim 1, characterized in that: The upper side of the second mounting frame (2) is provided with a controller (3), and the controller (3) is connected with the driving motor (4) through a data line.

3. The impurity removing mechanism of the cyperus esculentus harvester according to claim 1, characterized in that: The material turning assembly comprises two groups of bearing seats (12), and the two groups of bearing seats (12) are fixedly installed on the upper side of the second mounting frame (2) and in the inside of the protective shell (5) respectively, the right side of the protective shell (5) is fixedly installed with a connecting seat (13), the first cylinder screen (9) is rotatably installed with a material turning shaft (14) in the inside, the left and right ends of the material turning shaft (14) are respectively inserted into the two groups of bearing seats (12) and the connecting seat (13), the right end of the material turning shaft (14) is fixedly connected with the output shaft of the driving motor (4), a plurality of material turning arms (15) are annularly installed on the material turning shaft (14), a plurality of material turning plates (16) are fixedly installed on the plurality of material turning arms (15), and the plurality of material turning plates (16) are arranged in parallel with the inner wall of the first cylinder screen (9).

4. The impurity removing mechanism of the cyperus esculentus harvester according to claim 1, characterized in that: The anti-blocking assembly comprises a first gear (17), the first gear (17) is fixedly installed on the right end of the material turning shaft (14), two groups of rotating plates (18) are rotatably installed in the first cylinder screen (9), a scraper (19) is fixedly installed between the upper and lower ends of each of the two groups of rotating plates (18), the two groups of scrapers (19) are attached to the inner walls of the two groups of first cylinder screens (9), a second gear (20) is arranged on the right side of the rotating plate (18) in the right end of the first cylinder screen (9), and a plurality of gear rings (21) are arranged between the second gear (20) and the first gear (17).

5. The impurity removing mechanism of the cyperus esculentus harvester according to claim 3, characterized in that: The plurality of material turning plates (16) are all arc-shaped, the plurality of material turning arms (15) are annularly and staggeredly arranged on the plurality of material turning shafts (14), and the spacing between the plurality of material turning plates (16) and the first cylinder screen (9) is greater than the thickness of the two groups of scrapers (19).

6. The impurity removing mechanism of the cyperus esculentus harvester according to claim 3, characterized in that: The secondary impurity removal assembly comprises a secondary screening box (11) fixedly installed in the protective shell (5), the lower end of the first cylinder screen (9) is in the secondary screening box (11), the left end of the material turning shaft (14) is fixedly installed with a rotating disc (22), the left side eccentric circle of the rotating disc (22) is fixedly installed with a pin shaft (23), the left end of the secondary screening box (11) is fixedly installed with a fixed seat (24), the lower side of the fixed seat (24) is fixedly installed with a fulcrum (25), the fulcrum (25) is installed with a swing rod (26) through a hole, the upper side of the swing rod (26) is provided with a sliding groove (27), the pin shaft (23) is movably inserted in the sliding groove (27), the lower end of the swing rod (26) is provided with a pushing plate (28), and the pushing plate (28) is attached to the lower inner wall of the secondary screening box (11).

7. A debris removal mechanism for a cyperus esculentus harvester as claimed in claim 6, wherein: The right lower side of the first cylinder screen (9) is provided with a discharge hopper (31), the lower end of the discharge hopper (31) is installed with a discharge valve (32), and the lower end of the protective shell (5) is provided with an impurity outlet (33).

8. The impurity removing mechanism of the cyperus esculentus harvester according to claim 7, characterized in that: The lower end inner wall of the impurity outlet (33) is obliquely arranged, and the lower side inner wall of the left end of the impurity outlet (33) is lower than that of the right end.

9. The impurity removing mechanism of the cyperus esculentus harvester according to claim 1, characterized in that: The right end of the feeding cover plate (6) is provided with an air outlet channel (8), the air outlet channel (8) is attached to the through hole (10) arranged at the right end of the first cylinder screen (9), the left side of the first mounting frame (1) is fixedly installed with a fan (29), the protective shell (5) is fixedly installed with a blowing pipe (30), and the blowing pipe (30) is attached to the lower end of the first cylinder screen (9) on the front and back sides.

10. A method for using the impurity removing mechanism of the chufa harvesting machine, which uses the impurity removing mechanism of the chufa harvesting machine according to claims 1-9, characterized in that: The method comprises the following steps: S1, the oil palm is harvested by the oil palm harvester, the collected oil palm is sent into the first cylinder screen (9) through the feeding channel (7), the driving motor (4) is started, the driving motor (4) output shaft drives the material turning shaft (14), a plurality of material turning arms (15) and a plurality of material turning plates (16) to rotate in the first cylinder screen (9), thereby turning the oil palm put into the first cylinder screen (9), and then screening the oil palm and smaller impurities through the lower end of the first cylinder screen (9) into the secondary screening box (11), and the larger soil and plant leaf residues collected by the oil palm harvester when collecting the oil palm remain in the first cylinder screen (9), thereby completing the first impurity removal of the oil palm; S2, while the material turning shaft (14) rotates, the two groups of rotating plates (18) and the two groups of scrapers (19) are driven to rotate through the action of the first gear (17), the second gear (20) and the plurality of gear rings (21), so that the two groups of rotating plates (18) and the two groups of scrapers (19) rotate in the first cylinder screen (9), thereby cleaning and scraping the holes blocked at the lower end of the first cylinder screen (9), avoiding that the smaller impurities are blocked at the lower end of the first cylinder screen (9) and affecting the screening of the oil palm. S3, when the material turning shaft (14) rotates, the pin shaft (23) is driven to make circular motion in the sliding groove (27) through the rotating disc (22), the pin shaft (23) drives the swing rod (26) to make reciprocating swing motion on the fulcrum (25) when making circular motion, the swing rod (26) drives the pushing plate (28) to make reciprocating motion in the lower end of the secondary screening box (11) when reciprocating up and down, thereby making the oil palm and impurities in the first cylinder sieve (9) vibrate, improving the screening efficiency of the smaller impurities through the lower end of the secondary screening box (11), then opening the discharge valve (32), so that the oil palm slides out from the left end of the discharge hopper (31), thereby facilitating the collection of the screened oil palm, and the smaller impurities are discharged into the protective shell (5) through the lower end of the secondary screening box (11) and slide out from the impurity outlet (33) of the protective shell (5); S4, after the collected oil palm and larger plant leaves are separated from impurities through the first cylinder sieve (9), the fan (29) generates airflow which is blown upward into the first cylinder sieve (9) through the blowing pipe (30), and the lighter impurities remaining in the first cylinder sieve (9) are discharged through the through hole (10) at the right end of the first cylinder sieve (9) and the air outlet channel (8) at the right end of the feeding cover plate (6).

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