Impurity removing mechanism and method of cyperus esculentus harvester

Abstract

The invention discloses an impurity removal mechanism of a cyperus esculentus harvester and a method thereof, and relates to the technical field of cyperus esculentus harvesting.The mechanism comprises a supporting bottom frame, and two supporting plates are arranged above the supporting bottom frame and connected with the top end of the supporting bottom frame. Through cooperative arrangement of the screening cylinder, the annular rolling groove, the supporting rolling wheel, the gear ring, the power motor, the first gear, the feeding port, the discharging pipe and the sealing door, the mechanism is installed on the cyperus esculentus harvester, cyperus esculentus is discharged into the screening cylinder through the feeding port, the power motor works to drive the first gear and the gear ring to rotate, and the screening cylinder is driven by the discharging pipe to rotate. According to the cyperus esculentus harvester, the screening barrel can rotate between the two sets of supporting rollers, impurities such as soil on the surfaces of cyperus esculentus are screened, the cyperus esculentus harvester is provided with the impurity removing mechanism, the harvested cyperus esculentus can be subjected to impurity removing treatment, the subsequent impurity removing procedure of the cyperus esculentus is reduced, and the cyperus esculentus harvesting efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of cyperus rotundus harvesting, in particular to a cyperus rotundus harvester impurity removal mechanism and a method thereof. Background Art

[0002] Cyperus oleiferus is an economic crop rich in unsaturated fatty acids, which is extracted from the seeds of Cyperus oleiferus plants. Cyperus oleiferus, also known as Cyperus oleiferus, ground almond, underground chestnut, etc., is an economic crop that integrates grain, oil, animal husbandry and feed, with high economic value and sand control effects. The part above its root system can be used as fodder, while its underground tubers are rich in fat, starch and protein, which can be used for oil extraction, wine making, maltose and beverages. Cyperus oleiferus is native to Africa and Mediterranean coastal countries, and is now widely distributed in tropical and subtropical regions of Africa, Europe, Asia, North America and Latin America. This plant has strong adaptability and can grow under a variety of soil and climatic conditions, especially suitable for planting in sandy and saline-alkali land. Cyperus oleiferus oil is considered a high-quality healthy edible oil due to its high content of unsaturated fatty acids, which has the functions of lowering blood sugar, improving intestinal flora, reducing the risk of cancer and improving constipation. In addition, cyperus chinensis has a high protein content and is easy to digest, making it a nutritious food ingredient. A harvester is needed to harvest cyperus chinensis. A cyperus chinensis harvester is a type of agricultural machinery specifically used for harvesting cyperus chinensis. Harvesting cyperus chinensis requires a lot of manpower, which is time-consuming and labor-intensive. The emergence of cyperus chinensis harvesters has solved this problem, achieved large-scale harvesting, and improved harvesting efficiency.

[0003] However, the conventional cyperus rotundus harvester still has certain defects when in use. The conventional cyperus rotundus harvester only has the harvesting function when in use. After the cyperus rotundus is harvested, dirt and other impurities will be attached to the surface. The conventional cyperus rotundus harvester lacks a cleaning mechanism, and it is difficult to clean the harvested cyperus rotundus, resulting in the cyperus rotundus containing more dirt and other impurities, which requires centralized cleaning, increasing the cyperus rotundus harvesting process and affecting the cyperus rotundus harvesting efficiency. Therefore, it is necessary to propose a cleaning mechanism and method of a cyperus rotundus harvester to solve the problems in the prior art. Summary of the invention

[0004] The purpose of the present invention is to make up for the shortcomings of the prior art and provide a de-impuring mechanism and method for a cyperus juncea harvester. The mechanism can be installed on a cyperus juncea harvester for use, so that the cyperus juncea harvester is equipped with a de-impuring mechanism and can perform de-impuring treatment on the harvested cyperus juncea to avoid impurities such as soil on the surface of the harvested cyperus juncea, thereby reducing the subsequent de-impuring process of the cyperus juncea and effectively improving the harvesting efficiency of the cyperus juncea.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a de-improvement mechanism of a cyperus chinensis harvester, the mechanism comprising a supporting frame, two supporting plates are arranged above the supporting frame, the two supporting plates are connected to the top of the supporting frame, the upper surfaces of the two supporting plates are provided with grooves, the surface of the supporting frame is provided with a group of mounting holes, a screening drum is arranged above the supporting frame, the outer surface of the screening drum is provided with two annular rolling grooves, the upper surfaces of the two supporting plates are provided with two supporting rollers, and the outer surfaces of the two supporting rollers are in sliding contact with the inner walls of the annular rolling grooves, a rotating assembly is arranged at the left end of the screening drum, the rotating assembly comprises a gear ring fixedly connected to the outer surface of the screening drum, a feeding port is arranged at the left end of the screening drum, the outer surface of the screening drum is fixedly connected with a discharging pipe, a sealing door is arranged at the bottom end of the discharging pipe, two cleaning assemblies are arranged outside the screening drum, and a turning assembly is arranged inside the screening drum.

[0006] Furthermore, the rotary assembly also includes a power motor installed inside the groove, and a gear 1 is installed at the output end of the power motor, and the gear 1 is meshed with a gear ring.

[0007] Furthermore, two support columns are installed on the outer surface of the power motor, and mounting plates are installed at ends of the two support columns that are away from each other, and the two mounting plates are connected to the inner wall of the groove through two connecting bolts.

[0008] Furthermore, the cleaning assembly includes two support bars 1, the bottom ends of the two support bars 1 are respectively connected to the upper surfaces of the two support plates, a rotating rod is rotatably connected between the two support bars 1, a gear 2 is installed on the left end of the rotating rod, and the gear 2 is meshed with the gear ring.

[0009] Furthermore, two cleaning plates are arranged on the outside of the rotating rod, a group of connecting blocks are installed on the side of the two cleaning plates close to each other, and the connecting blocks are connected to the rotating rod, and a cleaning brush is installed on the side of the two cleaning plates away from each other, and the cleaning brush is in contact with the screening cylinder.

[0010] Furthermore, the material turning assembly includes two support bars 2, the bottom ends of the two support bars 2 are respectively connected to the outer surfaces of the two support plates, a support rod is installed between the two support bars 2, and the support rod is rotatably connected to the screening drum.

[0011] Furthermore, two groups of flipping plates are arranged outside the support rod, and a rubber strip is installed on the outer surface of each flipping plate. Two connecting strips are installed on the end of each flipping plate away from the rubber strip, and the end of the connecting strip away from the flipping plate is connected to the support rod.

[0012] A method for using a cyperus oleifera harvester's impurity removal mechanism, the method comprising the following steps: The fixing bolt is passed through the inside of the mounting hole to connect the mechanism to the cyperus chinensis harvester, and the discharge port of the cyperus chinensis harvester extends into the inside of the screening cylinder through the feed port; The power motor can drive the gear 1 to rotate. By utilizing the matching setting between the gear 1 and the gear ring, the rotation of the gear 1 can drive the gear ring to rotate, so that the screening drum can rotate between the two sets of supporting rollers. The cyperus rotundus inside the screening cylinder rolls inside the screening cylinder, which can screen out the dirt and other impurities on the surface of the cyperus rotundus, and the screened impurities can be discharged to the outside of the screening cylinder; After the impurities of the cyperus rotundus in the screening cylinder are removed, the sealing door at the bottom of the discharge pipe is opened, and the impurities-free cyperus rotundus is discharged through the discharge pipe, thus completing the impurity removal work after the cyperus rotundus is harvested.

[0013] Furthermore, the method further comprises: When the screening drum rotates, the cleaning assembly is driven to work, and the outer surface of the screening drum can be cleaned; When the screening drum is rotating, the material turning assembly is used to turn the cyperus juncea beans inside the screening drum, thereby ensuring the impurity removal effect of the cyperus juncea beans.

[0014] Compared with the prior art, the impurity removal mechanism and method of the cyperus oleifera harvester have the following beneficial effects: 1. The present invention installs the mechanism on the cyperus rotundus harvester through the coordinated arrangement of the screening drum, the annular rolling groove, the supporting roller, the gear ring, the power motor, the gear 1, the feed port, the discharge pipe and the sealing door. The cyperus rotundus is discharged into the interior of the screening drum through the feed port. The power motor can drive the gear 1 and the gear ring to rotate, so that the screening drum can rotate between the two groups of supporting rollers to screen the impurities such as soil on the surface of the cyperus rotundus. The cyperus rotundus harvester is equipped with an impurity removal mechanism, which can remove impurities from the harvested cyperus rotundus, reduce the subsequent impurity removal process of the cyperus rotundus, and effectively improve the harvesting efficiency of the cyperus rotundus.

[0015] 2. The present invention cooperates with the screening drum, support bar 1, rotating rod, gear 2, cleaning plate, connecting block, cleaning brush, support bar 2, support rod, flipping plate, rubber strip and connecting bar. The power motor drives the screening drum to rotate through the gear ring. The rotation of the gear ring can drive the rotating rod to rotate together through gear 2, so that the connecting block on the outer surface of the cleaning plate can clean the outer surface of the screening drum, and the outer surface of the screening drum can be prevented from being blocked by impurities such as soil, so as to ensure the impurity removal and screening effect of Cyperus rotundus. When the screening drum rotates, the support rod and the flipping plate remain stationary, so that the flipping plate and the screening drum can rotate relative to each other, so that the flipping plate can flip the Cyperus rotundus inside the screening drum, so as to ensure the impurity removal effect of Cyperus rotundus, and the use effect of the mechanism can be ensured.

[0016] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The present invention is a three-dimensional structural schematic diagram of a rubbish removal mechanism of a cyperus oleifera harvester; Figure 2 The present invention is a three-dimensional structural schematic diagram of a screening cylinder in a cleaning mechanism of a cyperus oleifera harvester; Figure 3 The present invention is a three-dimensional structural schematic diagram of a cleaning component in a cleaning mechanism of a cyperus oleifera harvester; Figure 4 The present invention is a three-dimensional structural schematic diagram of a power motor in a rubbish removal mechanism of a cyperus oleifera harvester; Figure 5 The present invention is a schematic diagram of the internal structure of a screening cylinder in a cleaning mechanism of a cyperus oleifera harvester; Figure 6 The invention is a three-dimensional structural schematic diagram of a material turning component in a debris removal mechanism of a jatropha harvester.

[0019] In the figure: 1. supporting frame; 2. supporting plate; 3. groove; 4. mounting hole; 5. screening cylinder; 6. annular rolling groove; 7. supporting roller; 8. rotating assembly; 801. gear ring; 802. power motor; 803. gear one; 804. supporting column; 805. mounting plate; 806. connecting bolt; 9. feeding port; 10. discharging pipe; 11. sealing door; 12. cleaning assembly; 121. supporting bar one; 122. rotating rod; 123. gear two; 124. cleaning plate; 125. connecting block; 126. cleaning brush; 13. turning assembly; 131. supporting bar two; 132. supporting rod; 133. turning plate; 134. rubber strip; 135. connecting strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0021] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a cleaning mechanism of a cyperus oleifera harvester comprises a supporting frame 1, two symmetrical supporting plates 2 are arranged above the supporting frame 1, the two supporting plates 2 are connected to the top of the supporting frame 1, the upper surfaces of the two supporting plates 2 are provided with grooves 3, the surface of the supporting frame 1 is provided with a group of mounting holes 4, a screening drum 5 is arranged above the supporting frame 1, the outer surface of the screening drum 5 is provided with two symmetrical annular rolling grooves 6, the upper surfaces of the two supporting plates 2 are provided with two symmetrical supporting rollers 7, and the outer surfaces of the two supporting rollers 7 are in sliding contact with the inner walls of the annular rolling grooves 6, a rotating assembly 8 is installed at the left end of the screening drum 5, and the rotating assembly 8 comprises a gear ring 801 fixedly connected to the outer surface of the screening drum 5, The rotating assembly 8 also includes a power motor 802 installed inside the groove 3. A gear 803 is installed at the output end of the power motor 802. The gear 803 is meshed with the gear ring 801. Two symmetrical support columns 804 are installed on the outer surface of the power motor 802. The ends of the two support columns 804 that are away from each other are both equipped with mounting plates 805. The two mounting plates 805 are connected to the inner wall of the groove 3 through two symmetrical connecting bolts 806. A feed port 9 is provided at the left end of the screening drum 5. A discharge pipe 10 is fixedly connected to the outer surface of the screening drum 5. A sealing door 11 is installed at the bottom end of the discharge pipe 10. Two symmetrical cleaning components 12 are arranged on the outside of the screening drum 5, and a turning component 13 is installed inside the screening drum 5.

[0022] In this embodiment, the top of the support frame 1 and the support plate 2 are connected by welding, which can ensure the structural stability between the support frame 1 and the support plate 2. The groove 3 provided can facilitate the installation of the power motor 802 and reduce the weight of the support plate 2. After the support frame 1 of the mechanism is placed on the cyperus rotundus harvester, the mounting hole 4 can be made to correspond to the connecting hole on the cyperus rotundus harvester, which can facilitate the installation of the mechanism. The screening drum 5 is made of stainless steel, and evenly arranged screening holes are provided on the outer surface of the screening drum 5, which can facilitate the screening of impurities such as soil on the surface of the cyperus rotundus. The screening drum 5 can be placed between the two support rollers 7. The supporting roller 7 can support the screening drum 5 by rotating between them, and the annular rolling groove 6 can limit the supporting roller 7, so as to ensure the stability of the screening drum 5 during rotation. A threaded hole compatible with the connecting bolt 806 is opened on the inner wall of the groove 3, so that the connecting bolt 806 can be threadedly connected to the inner wall of the threaded hole, so as to facilitate the installation of the mounting plate 805, thereby facilitating the installation of the power motor 802. The sealing door 11 is hinged to the bottom end of the discharge pipe 10 by two hinges, and a handle is installed on the outer surface of the sealing door 11, so as to facilitate the opening of the sealing door 11 and discharge the cleaned jatropha through the discharge pipe 10.

[0023] The working steps of this embodiment are as follows: like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the mechanism is placed on a cyperus rotundus harvester, and a fixing bolt is passed through the interior of the mounting hole 4 to connect the fixing bolt to the cyperus rotundus harvester, so that the discharge port of the cyperus rotundus harvester can extend into the interior of the screening drum 5 through the feed port 9. After harvesting the cyperus rotundus, the cyperus rotundus harvester can discharge the cyperus rotundus into the interior of the screening drum 5. At the same time, the power motor 802 is started, and the power motor 802 can drive the gear 1 803 to rotate. By utilizing the matching arrangement between the gear 1 803 and the gear ring 801, the rotation of the gear 1 803 can drive the gear ring 801 to rotate, so that the screening drum 5 can rotate between the two groups of supporting rollers 7, so that the cyperus rotundus inside the screening drum 5 can be screened. The inside of the drum 5 tumbles, and the soil and other impurities on the surface of the cyperus rotten beans can be screened. The screened impurities can be discharged to the outside of the screening drum 5. After the cyperus rotten beans inside the screening drum 5 are cleaned, the sealing door 11 at the bottom end of the discharge pipe 10 is opened, and the cyperus rotten beans after the impurities inside the screening drum 5 can be discharged through the discharge pipe 10, and the impurities removal work after the cyperus rotten beans are harvested can be completed. When the screening drum 5 rotates, the cleaning component 12 is provided, and the outer surface of the screening drum 5 can be cleaned, and the clogging of the screening drum 5 by impurities such as soil can be avoided. When the screening drum 5 rotates, the cyperus rotten beans inside the screening drum 5 can be turned by the turning component 13, and the impurities removal effect of the cyperus rotten beans can be guaranteed. Embodiment 2

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the cleaning assembly 12 includes two symmetrical support bars 121, the bottom ends of the two support bars 121 are respectively connected to the upper surfaces of the two support plates 2, a rotating rod 122 is rotatably connected between the two support bars 121, a gear 123 is installed at the left end of the rotating rod 122, and the gear 123 is meshed with the gear ring 801, and two symmetrical cleaning plates 124 are arranged on the outside of the rotating rod 122, and a group of equidistantly arranged connecting blocks 125 are installed on the side where the two cleaning plates 124 are close to each other, and the connecting blocks 125 are connected to the rotating rod 122, and a cleaning brush 126 is installed on the side where the two cleaning plates 124 are away from each other, and the cleaning brush 126 is in contact with the screening drum 5.

[0025] In this embodiment, bearings are fixedly embedded at the top of the two support bars 121, so that both ends of the rotating rod 122 can be connected to the inner ring of the bearing, which can ensure the rotation accuracy of the rotating rod 122. The left end of the rotating rod 122 passes through the bearing at the top of the left support bar 121 and extends to the left side of the support bar 121. Gear 2 123 is meshed with the gear ring 801. When the gear ring 801 rotates, the rotating rod 122 can be driven to rotate together through gear 2 123.

[0026] The working steps of this embodiment are as follows: like Figure 1 , Figure 2 and Figure 3 As shown, the power motor 802 can drive the gear 1 803 and the gear ring 801 to rotate, so that the screening drum 5 can rotate between the two groups of supporting rollers 7, so that the cyperus rotundus inside the screening drum 5 can roll inside the screening drum 5, and the soil and other impurities on the surface of the cyperus rotundus can be screened. When the gear ring 801 rotates, the rotating rod 122 can be driven to rotate together through the gear 2 123, so that the two cleaning plates 124 can rotate around the rotating rod 122, and the connecting block 125 on the outer surface of the cleaning plate 124 can clean the outer surface of the screening drum 5, so as to avoid the outer surface of the screening drum 5 being blocked by impurities such as soil, and ensure the impurity removal and screening effect of the cyperus rotundus. Embodiment 3

[0027] like Figure 1 , Figure 5 and Figure 6 As shown, the material turning assembly 13 includes two symmetrical support bars 131, the bottom ends of the two support bars 131 are respectively connected to the outer surfaces of the two support plates 2, a support rod 132 is installed between the two support bars 131, the support rod 132 is rotatably connected to the screening drum 5, and two groups of equidistantly arranged material turning plates 133 are arranged outside the support rod 132, and a rubber strip 134 is installed on the outer surface of each material turning plate 133, and two symmetrical connecting strips 135 are installed on the end of each material turning plate 133 away from the rubber strip 134, and the end of the connecting strip 135 away from the material turning plate 133 is connected to the support rod 132.

[0028] In this embodiment, the support bar 131 is provided to support the support rod 132, and the support bar 131 is coaxial with the screening drum 5. A bearing is fixedly embedded on the right side of the screening drum 5. The right end of the support rod 132 passes through the inner ring of the bearing and extends to the outside of the screening drum 5. The outer surface of the support rod 132 is connected to the inner ring of the bearing, which can ensure the stability of the screening drum 5 during rotation. A certain gap is left between the rubber strip 134 and the inner wall of the screening drum 5, and the size of the gap does not allow the cyperus juncea to pass through. The connecting strip 135 is provided to connect the turning plate 133 and the support rod 132.

[0029] The working steps of this embodiment are as follows: like Figure 1 , Figure 5 and Figure 6As shown, the power motor 802 can drive the gear 1 803 and the gear ring 801 to rotate, so that the screening drum 5 rotates between the two groups of supporting rollers 7, and the cyperus rotundus inside the screening drum 5 can be rolled inside the screening drum 5 to screen the cyperus rotundus, and the impurities screened can be discharged to the outside of the screening drum 5. When the screening drum 5 rotates, the support rod 132 and the flipping plate 133 remain stationary, so that the flipping plate 133 and the screening drum 5 can rotate relative to each other, so that the flipping plate 133 can flip the cyperus rotundus inside the screening drum 5, which can ensure the impurity removal effect of the cyperus rotundus, and can ensure the use effect of the mechanism. Example

[0030] The present embodiment provides a method for using a cleaning mechanism of a cyperus rotundus harvester, and the method for using is as follows: first, the mechanism is placed on the cyperus rotundus harvester, and a fixing bolt is used to pass through the interior of the mounting hole 4 so that the fixing bolt is connected to the cyperus rotundus harvester, so that the discharge port of the cyperus rotundus harvester can extend into the interior of the screening drum 5 through the feed port 9, and the cyperus rotundus harvester can discharge the cyperus rotundus into the interior of the screening drum 5 after harvesting the cyperus rotundus. At the same time, the power motor 802 is started, and the power motor 802 can drive the gear 1 803 to rotate when it works. By utilizing the matching setting between the gear 1 803 and the gear ring 801, the rotation of the gear 1 803 can drive the gear ring 801 to rotate, so that the screening drum 5 can rotate between the two sets of support rollers 7. The cyperus foetus 11 is moved so that the cyperus foetus 11 inside the screening drum 5 can be rolled inside the screening drum 5, so that the soil and other impurities on the surface of the cyperus foetus can be screened, and the screened impurities can be discharged to the outside of the screening drum 5. When the screening drum 5 rotates, the support rod 132 and the turning plate 133 remain stationary, so that the turning plate 133 and the screening drum 5 can rotate relative to each other, so that the turning plate 133 can turn the cyperus foetus 11 inside the screening drum 5, thereby ensuring the impurity removal effect of the cyperus foetus 11 and the use effect of the mechanism. After the impurity removal of the cyperus foetus 11 inside the screening drum 5 is completed, the sealing door 11 at the bottom end of the discharge pipe 10 is opened, so that the cyperus foetus 11 after the impurity removal inside the screening drum 5 can be discharged through the discharge pipe 10, thereby completing the impurity removal work of the cyperus foetus 11 after harvest.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] It should be noted that the standard parts used in the present invention can all be purchased from the market, special-shaped parts can be customized according to the instructions and drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the inventor will not elaborate here.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A cleaning mechanism for a cyperus oleifera harvester, characterized in that: The mechanism comprises a support frame (1), two support plates (2) are arranged above the support frame (1), the two support plates (2) are connected to the top of the support frame (1), the upper surfaces of the two support plates (2) are provided with grooves (3), the surface of the support frame (1) is provided with a group of mounting holes (4), a screening drum (5) is arranged above the support frame (1), the outer surface of the screening drum (5) is provided with two annular rolling grooves (6), the upper surfaces of the two support plates (2) are provided with two support rollers (7), and the two support rollers (7) are provided with a plurality of support rollers (6). The outer surface of the sieve drum (5) is in sliding contact with the inner wall of the annular rolling groove (6); a rotating assembly (8) is installed at the left end of the sieve drum (5); the rotating assembly (8) includes a gear ring (801) fixedly connected to the outer surface of the sieve drum (5); a feed inlet (9) is opened at the left end of the sieve drum (5); a discharge pipe (10) is fixedly connected to the outer surface of the sieve drum (5); a sealing door (11) is installed at the bottom end of the discharge pipe (10); two cleaning assemblies (12) are arranged outside the sieve drum (5); and a turning assembly (13) is installed inside the sieve drum (5).

2. The impurity removal mechanism of the cyperus oleifera harvester according to claim 1, characterized in that: The rotary assembly (8) further comprises a power motor (802) installed inside the groove (3), and a gear 1 (803) is installed at the output end of the power motor (802). The gear 1 (803) is meshed with the gear ring (801).

3. The impurity removal mechanism of the cyperus oleifera harvester according to claim 2, characterized in that: Two support columns (804) are installed on the outer surface of the power motor (802), and mounting plates (805) are installed at ends of the two support columns (804) that are away from each other. The two mounting plates (805) are connected to the inner wall of the groove (3) via two connecting bolts (806).

4. The impurity removal mechanism of the cyperus oleifera harvester according to claim 1, characterized in that: The cleaning assembly (12) comprises two support bars (121), the bottom ends of the two support bars (121) being connected to the upper surfaces of the two support plates (2) respectively, a rotating rod (122) being rotatably connected between the two support bars (121), a gear (123) being mounted on the left end of the rotating rod (122), and the gear (123) being meshed with the gear ring (801).

5. The impurity removal mechanism of the cyperus oleifera harvester according to claim 4, characterized in that: Two cleaning plates (124) are arranged outside the rotating rod (122); a group of connecting blocks (125) are installed on the sides of the two cleaning plates (124) close to each other, and the connecting blocks (125) are connected to the rotating rod (122); cleaning brushes (126) are installed on the sides of the two cleaning plates (124) away from each other, and the cleaning brushes (126) are in contact with the screening drum (5).

6. The impurity removal mechanism of the cyperus oleifera harvester according to claim 1, characterized in that: The material turning assembly (13) comprises two support bars (131), the bottom ends of the two support bars (131) are respectively connected to the outer surfaces of the two support plates (2), a support rod (132) is installed between the two support bars (131), and the support rod (132) is rotatably connected to the screening drum (5).

7. The impurity removal mechanism of the cyperus oleifera harvester according to claim 6, characterized in that: Two groups of flipping plates (133) are arranged outside the support rod (132), and a rubber strip (134) is installed on the outer surface of each flipping plate (133). Two connecting strips (135) are installed at one end of each flipping plate (133) away from the rubber strip (134), and one end of the connecting strip (135) away from the flipping plate (133) is connected to the support rod (132).

8. A method for using a cyperus oleifera harvester's impurity removal mechanism, characterized in that: The method comprises the following steps: The mechanism is connected to a cyperus chinensis harvester by passing a fixing bolt through the interior of the mounting hole (4); the discharge port of the cyperus chinensis harvester extends into the interior of the screening cylinder (5) through the feed port (9); The power motor (802) is capable of driving the gear 1 (803) to rotate. By means of the matching arrangement between the gear 1 (803) and the gear ring (801), the rotation of the gear 1 (803) can drive the gear ring (801) to rotate, thereby enabling the screening drum (5) to rotate between the two sets of supporting rollers (7); The cyperus rotundus inside the screening cylinder (5) rolls inside the screening cylinder (5), so that impurities such as soil on the surface of the cyperus rotundus can be screened, and the screened impurities can be discharged to the outside of the screening cylinder (5); After the cyperus rotundus in the screening cylinder (5) is cleaned, the sealing door (11) at the bottom end of the discharge pipe (10) is opened, and the cyperus rotundus after the cleansing is discharged through the discharge pipe (10), thereby completing the cleansing work of the cyperus rotundus after harvesting.

9. The method for using the impurity removal mechanism of a cyperus oleifera harvester according to claim 8, characterized in that: The method further comprises the following steps: When the screening drum (5) rotates, the cleaning assembly (12) is driven to work, so that the outer surface of the screening drum (5) can be cleaned; When the screening drum (5) is rotating, the material turning assembly (13) can be used to turn the Cyperus juncea beans inside the screening drum (5), thereby ensuring the effect of removing impurities from the Cyperus juncea beans.

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