A soybean threshing and cleaning device and harvester suitable for film mulching planting

Abstract

The utility model provides a kind of soybean threshing and cleaning device and harvester suitable for mulching planting, including threshing device and separating and cleaning device;Threshing device includes spiral feed auger, longitudinal shaft flow peg tooth cylinder, guide plate, right grid format recessed plate screen, threshing device support, upper cover plate and left grid format recessed plate screen;Separating and cleaning device is below threshing device, and separating and cleaning device includes separating and cleaning device support, separating device, cleaning device, double air outlet centrifugal fan, grain collecting auger, rethreshing auger and pulverizer;The utility model effectively separates impurities and breaks up lumps during soybean harvesting process, improves soybean combine harvester threshing and separating and cleaning efficiency, reduces loss rate, reduces mechanical damage of soybean during cleaning process, and improves soybean quality.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a soybean threshing and cleaning device and harvester suitable for mulched planting. Background Technology

[0002] Currently, there is a lack of systematic research on soybean harvestable cleaning devices in China. Existing technologies are mainly applied by directly transplanting and modifying the operating parameters of grain combine harvester cleaning devices. However, due to the significant incompatibility between such cleaning devices and the unique harvesting characteristics of soybeans, there are prominent problems such as high cleaning loss rate and excessive impurity content in actual operation. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a soybean threshing and cleaning device and harvester suitable for mulched soybean cultivation. It effectively separates impurities and broken clumps during soybean harvesting, improves the threshing, separating, and cleaning efficiency of the soybean combine harvester, reduces the loss rate, minimizes mechanical damage to soybeans during the cleaning process, and improves soybean quality.

[0004] Note that the description of these objectives does not preclude the existence of other objectives. One embodiment of this invention does not need to achieve all of the above objectives. Objectives other than those described above can be extracted from the description, drawings, and claims.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A soybean threshing and cleaning device suitable for mulched soybean cultivation, comprising a threshing device and a separation and cleaning device;

[0007] The threshing device includes a spiral feed auger, a longitudinally flowing toothed roller, a guide plate, a right-grid concave plate screen, a threshing device support, an upper cover plate, and a left-grid concave plate screen. The feed inlet of the spiral feed auger is installed on one end of the threshing device support, and the output end of the spiral feed auger is connected to one end of the longitudinally flowing toothed roller. The other end of the longitudinally flowing toothed roller is installed on the other end of the threshing device support. An upper cover plate is provided above the threshing device support, and the guide plate is placed on the upper cover plate and located above the longitudinally flowing toothed roller. One side of the right-grid concave plate screen is installed on the right side of the threshing device support, and the other side of the right-grid concave plate screen is connected to one side of the left-grid concave plate screen. The other side of the left-grid concave plate screen is installed on the left side of the threshing device support. The right-grid concave plate screen and the left-grid concave plate screen form a semi-circular concave plate screen located below the longitudinally flowing toothed roller.

[0008] The separation and cleaning device is located below the threshing device. The separation and cleaning device includes a separation and cleaning device support, a separation device, a cleaning device, a double-outlet centrifugal fan, a grain collecting auger, a re-threshing auger, and a crusher. The separation device is installed inside the upper part of the separation and cleaning device support. The cleaning device is installed below the separation device. The double-outlet centrifugal fan is installed below the cleaning device. The grain collecting auger is installed below the cleaning device and is used to transport the separated soybeans to the grain silo. The re-threshing auger is installed below the cleaning device and is used to transport the incompletely separated soybeans to the upper separation device for further separation and cleaning. The crusher is installed behind the separation device.

[0009] In the above scheme, the longitudinal axis flow spiked roller includes a left support spoke, a rotating main shaft, a first intermediate support spoke, a second intermediate support spoke, a toothed threshing assembly, a spiked tooth unit, a right support spoke, and a first transmission gear; the left support spoke is installed at the output end of the spiral feed auger; the left support spoke, the first intermediate support spoke, the second intermediate support spoke, and the right support spoke are sequentially installed on the rotating main shaft; one end of the rotating main shaft passes through the spiral feed auger and is connected to a bearing on the threshing device bracket, and the other end of the rotating main shaft passes through the right support spoke and is connected to the first transmission gear; the toothed threshing assembly is arranged around the circumference of the rotating main shaft and installed on the left support spoke, the first intermediate support spoke, the second intermediate support spoke, and the right support spoke; the spiked tooth unit is installed on the toothed threshing assembly.

[0010] In the above scheme, the separation device includes a transmission vibrating screen, a vibrating screen front seat, a transmission side plate, a first guide plate, and a first swing arm mechanism; the transmission vibrating screen is provided with transmission side plates on both sides, and a vibrating screen front seat is provided at one end of each transmission side plate; both sides of one end of the transmission vibrating screen are respectively mounted on the separation and cleaning device bracket through the vibrating screen front seat; the first guide plate is placed on the other end of the transmission vibrating screen; the first swing arm mechanism is connected to the other end of the transmission side plate, and the first swing arm mechanism is connected to the drive mechanism, which is used to drive the first swing arm mechanism to drive the transmission vibrating screen to vibrate.

[0011] Furthermore, the first rocker arm mechanism includes a second transmission gear, a first rocker arm, a first bearing seat, and a first counterweight.

[0012] The first swing arm is located at the other end of the transmission side plate. The two ends of the first swing arm are respectively provided with a first bearing seat, a second transmission gear and a first counterweight. The second transmission gear, the first swing arm, the first bearing seat and the first counterweight form a first swing arm mechanism. The second transmission gear is connected to the drive mechanism.

[0013] Furthermore, the separation and cleaning device also includes a support trough plate and a sealing plate; the support trough plate is installed on one side of the separation and cleaning device bracket, and the vibrating screen front seat on one side of the transmission side plate is connected to the support trough plate; the sealing plate is installed on the other side of the separation and cleaning device bracket, and the vibrating screen front seat on the other side of the transmission side plate is connected to the sealing plate.

[0014] In the above scheme, the cleaning device includes a side plate, a second guide plate, a vibrating screen plate, a screening plate, a perforated screen plate, a tail screen, and a second swing arm mechanism;

[0015] The side plate is mounted on the separation and cleaning device bracket and located below the separation device; the vibrating screen plate is mounted on the side plate; the guide plate is placed on the vibrating screen plate; the screening plate is mounted on the side plate and located below one end of the vibrating screen plate; the perforated screen plate is mounted on the side plate and located below the screening plate, used to screen soybeans to fall into the grain collecting auger for grain conveying; the tail screen is mounted on the side plate and located below one end of the screening plate, and any unthreshed pods fall through the tail screen into the re-threshing auger; the second swing arm mechanism is connected to the side plate and the drive mechanism, and the drive mechanism is used to drive the second swing arm mechanism to drive the side plate, thereby driving the vibrating screen plate, screening plate, perforated screen plate and tail screen to vibrate.

[0016] Furthermore, the second swing arm mechanism includes a third transmission gear, a second swing arm, a second bearing seat, and a second counterweight; the second swing arm is located below the tail screen, and the two ends of the second swing arm are respectively provided with a second bearing seat, a third transmission gear, and a second counterweight; the second counterweight forms the second swing arm mechanism, and the third transmission gear is connected to the drive mechanism.

[0017] In the above scheme, the crusher includes a housing, a crushing shaft, a bushing, crushing blades, a pulley, and a discharge port; the housing is mounted on the support of the separation and cleaning device, with one end of the housing open and located behind the separation device; the crushing shaft is provided with a bushing, and the circumferential surface of the bushing is provided with multiple crushing blades; one end of the crushing shaft is connected to the inner wall of the housing through a bearing, and the other end of the crushing shaft is connected to the pulley, which is connected to the drive mechanism; the other end of the housing is provided with a discharge port.

[0018] In the above scheme, six toothed threshing components are arranged circumferentially on the rotating main shaft; the length of each toothed threshing component is 1350 mm; each toothed threshing component is equipped with nine nail tooth units, the spacing between adjacent nail teeth on each toothed threshing component is 103 mm; the diameter of each nail tooth is 12 mm; the diameter of the grid bars of the right grid-type concave plate screen and the left grid-type concave plate screen is 4 mm, and the spacing between adjacent grid bars is 19 mm; the height of the guide plate is 55 mm, and the distance between the guide plate and the toothed threshing components is 15 mm. These are the optimal parameter combinations, which can effectively thresh moist and easily sticky soybeans.

[0019] A harvester includes the soybean threshing and cleaning device suitable for mulched planting.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention solves the problem that soybeans easily clump together due to surface moisture adsorption in humid environments, making it difficult for traditional cleaning equipment to effectively separate impurities and break up clumps. This invention effectively enhances the overall threshing efficiency by employing a longitudinal flow drum-type threshing device, a grid-type concave sieve, and guide plates. Furthermore, this invention utilizes a fan-screen cleaning mechanism formed by a platform-type separation device, a dual-outlet centrifugal fan 206, and a cleaning device 205 working in tandem. This effectively reduces soybean breakage and reduces the risk of mechanical damage during high-precision cleaning, improving soybean quality and alleviating the frequent screen blockage problem in the vibrating screen of the cleaning device, thereby improving operational efficiency and cleaning effect. This invention has a simple overall structure, is easy to install and replace, and can be quickly improved and applied to the threshing and cleaning devices of existing full-feed tracked soybean combine harvesters.

[0022] Note that the description of these effects does not preclude the existence of other effects. One embodiment of this invention does not necessarily have all the aforementioned effects. Effects other than those described above can be readily observed and extracted from the description, drawings, claims, etc. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure of a soybean threshing and cleaning device suitable for mulched planting according to one embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the threshing device according to one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the detachable roller structure according to one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the separation and cleaning device according to one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the separation device structure according to one embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the cleaning device according to one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the pulverizer structure according to one embodiment of the present invention.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1-Threshing device; 101-Screw feed auger; 102-Longitudinal axis flow spiked tooth drum; 102-1-First transmission gear; 102-2-Left support spoke; 102-3-Rotating main shaft; 102-4-First intermediate support spoke; 102-5-Second intermediate support spoke; 102-6-Spindle threshing assembly; 102-7-Spiked tooth unit; 102-8-Right support spoke. 103-Guide plate, 104-Right grid concave plate screen, 105-Threshing device support, 106-Left grid concave plate screen, 2-Separation and cleaning device, 201-Separation and cleaning device support, 202-Support trough plate, 203-Sealing plate, 204-Separation device, 204-1-Transfer vibrating screen, 204-2-Vibrating screen front seat, 204-3-Transfer side plate, 204-4-First guide plate, 204-5-Second transmission gear, 204-6-First swing arm, 204-7-First bearing seat, 204-8-First counterweight, 205-Cleaning device, 205 -1-Side plate, 205-2-Second guide plate, 205-3-Vibrating screen plate, 205-4-Screening plate, 205-5-Perforated screen plate, 205-6-Tail screen, 205-7-Third transmission gear, 205-8-Second swing arm, 205-9-Second bearing seat, 205-10-Second counterweight, 206-Double outlet centrifugal fan, 207-Grain collecting auger, 208-Re-detonation auger, 209-Pulverizer, 209-1-Shell, 209-2-Shaft sleeve, 209-3-Pulverizing blade, 209-4-Pulley, 209-5-Discharge port. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "front," "rear," "left," "right," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Example 1

[0037] Figures 1 to 7 The image shows a preferred embodiment of the soybean threshing and cleaning device suitable for mulched planting according to the present invention. The soybean threshing and cleaning device suitable for mulched planting includes a threshing device 1 and a separation and cleaning device 2.

[0038] like Figure 2As shown, the threshing device 1 includes a screw feed auger 101, a longitudinally flowing toothed roller 102, a guide plate 103, a right-side grid-type concave sieve 104, a threshing device support 105, an upper cover plate, and a left-side grid-type concave sieve 106. The feed inlet of the screw feed auger 101 is installed on one end of the threshing device support 105, and the output end of the screw feed auger 101 is connected to one end of the longitudinally flowing toothed roller 102. The other end of the longitudinally flowing toothed roller 102 is installed on the other end of the threshing device support 105. The threshing device support 105... A top cover plate is provided above the threshing device, and a guide plate 103 is set on the top cover plate and located above the longitudinal axis flowing nail tooth roller 102; one side of the right grid-type concave plate screen 104 is installed on the right side of the threshing device support 105, and the other side of the right grid-type concave plate screen 104 is connected to one side of the left grid-type concave plate screen 106, and the other side of the left grid-type concave plate screen 106 is installed on the left side of the threshing device support 105. The right grid-type concave plate screen 104 and the left grid-type concave plate screen 106 form a semi-circular concave plate screen, located below the longitudinal axis flowing nail tooth roller 102.

[0039] The spiral feed auger 101 is used to feed soybeans into the longitudinal axis flow spiked roller 102, which is used for threshing soybeans. The guide plate 103 is a spiral guide plate, which allows soybeans to move along the spiral trajectory to prolong the threshing process. The right grid-type concave plate screen 104 and the left grid-type concave plate screen 106 work together with the roller to perform threshing operations and effectively separate soybeans from impurities.

[0040] like Figure 3As shown, the longitudinal axis flow spiked roller 102 includes a left support spoke 102-2, a rotating main shaft 102-3, a first intermediate support spoke 102-4, a second intermediate support spoke 102-5, a rack threshing assembly 102-6, a spiked tooth unit 102-7, a right support spoke 102-8, and a first transmission gear 102-1. The left support spoke 102-2 is installed at the output end of the screw feed auger 101 and is used to support the rack threshing assembly 102-6. The left support spoke 102-2, the first intermediate support spoke 102-4, the second intermediate support spoke 102-5, and the right support spoke 102-8 are sequentially installed on the rotating main shaft 102-3 and are used to support the rack threshing assembly 102-6. One end of the rotating main shaft 102-3... The rotating main shaft 102-3 is connected to the bearing on the threshing device bracket 105 via the screw feed auger 101. One end of the rotating main shaft 102-3 passes through the right support spoke 102-8 and is connected to the first transmission gear 102-1 to drive the threshing device to rotate. The toothed threshing assembly 102-6 is arranged around the circumference of the rotating main shaft 102-3 and is installed on the left support spoke 102-2, the first intermediate support spoke 102-4, the second intermediate support spoke 102-5, and the right support spoke 102-8. The toothed unit 102-7 is installed on the toothed threshing assembly 102-6 and is used for threshing soybeans. The first transmission gear 102-1 is installed on the right side of the right support spoke 102-8 to drive the rotating main shaft 102-3 to rotate, thereby driving the entire threshing device to rotate.

[0041] like Figure 4 As shown, the separation and cleaning device 2 is located below the threshing device 1. The separation and cleaning device 2 includes a separation and cleaning device support 201, a separation device 204, a cleaning device 205, a double-outlet centrifugal fan 206, a grain collecting auger 207, a re-threshing auger 208, and a crusher 209. The separation device 204 is installed inside the upper part of the separation and cleaning device support 201, allowing mixed particles and shorter materials such as broken ears to fall into the screening equipment, while longer materials are sent to a subsequent crushing device for pulverization. The cleaning device 205 is installed below the separation device 204 and is used for screening soybeans. The dual-outlet centrifugal fan 206 is installed below the cleaning device 205 to generate airflow to separate the threshed grain from light impurities, ensuring that the grain entering the grain bin is clean and intact. The grain collecting auger 207 is installed below the cleaning device 205 to transport the separated soybeans to the grain bin. The re-threshing auger 208 is installed below the cleaning device 205 to transport the incompletely separated soybeans to the upper separating device 204 for further separation and cleaning. The crusher 209 is installed behind the separating device 204 to chop the straw remaining after harvesting and evenly spread it back to the field.

[0042] like Figure 5As shown, the separation device 204 is a platform-type separation device, including a transmission vibrating screen 204-1, a vibrating screen front seat 204-2, a transmission side plate 204-3, a first guide plate 204-4, and a first swing arm mechanism. The transmission vibrating screen 204-1 has transmission side plates 204-3 on both sides, and a vibrating screen front seat 204-2 is located at one end of each transmission side plate 204-3. Both sides of one end of the transmission vibrating screen 204-1 are mounted on the separation and cleaning device bracket 201 via the vibrating screen front seat 204-2, for vibrating screening of soybeans. The first guide plate 204-4 is placed on the other end of the transmission vibrating screen 204-1 for guiding the soybean flow. The first swing arm mechanism is connected to the other end of the transmission side plate 204-3 and is connected to a drive mechanism. The drive mechanism drives the first swing arm mechanism to vibrate the transmission vibrating screen 204-1.

[0043] like Figure 5 As shown, the first rocker arm mechanism includes a second transmission gear 204-5, a first rocker arm 204-6, a first bearing seat 204-7, and a first counterweight 204-8. The first rocker arm 204-6 is located at the other end of the transmission side plate 204-3. The first bearing seat 204-7, the second transmission gear 204-5, and the first counterweight 204-8 are respectively provided at both ends of the first rocker arm 204-6. The second transmission gear 204-5, the first rocker arm 204-6, the first bearing seat 204-7, and the first counterweight 204-8 form the first rocker arm mechanism. The second transmission gear 204-5 is connected to the drive mechanism.

[0044] The separation and cleaning device 2 also includes a support trough plate 202; the support trough plate 202 is installed on one side of the separation and cleaning device bracket 201, and the vibrating screen front seat 204-2 on one side of the transmission side plate 204-3 is connected to the support trough plate 202.

[0045] The separation and cleaning device 2 also includes a sealing plate 203; the sealing plate 203 is installed on the other side of the separation and cleaning device bracket 201 and is used for encapsulating the separation and cleaning device 2. The vibrating screen front seat 204-2 on the other side of the transmission side plate 204-3 is connected to the sealing plate 203.

[0046] like Figure 6As shown, the cleaning device 205 includes a side plate 205-1, a second guide plate 205-2, a vibrating screen plate 205-3, a screening plate 205-4, a perforated screen plate 205-5, a tail screen 205-6, and a second swing arm mechanism. The side plate 205-1 is mounted on the separation and cleaning device support 201 and is located below the separation device 204. The vibrating screen plate 205-3 is mounted on the side plate 205-1. The guide plate 205-2 is placed on the vibrating screen plate 205-3 for guiding the soybean flow. The screening plate 205-4 is mounted on the side plate 205-1 and is located below one end of the vibrating screen plate 205-3 for guiding the soybean flow. Screening; the perforated sieve plate 205-5 is installed on the side plate 205-1 and located below the screening plate 205-4, and is used to screen soybeans so that they fall into the grain collecting auger 207 for grain conveying; the tail sieve 205-6 is installed on the side plate 205-1 and located below one end of the screening plate 205-4, and the unthreshed pods fall through the tail sieve 205-6 into the re-threshing auger 208; the second swing arm mechanism is connected to the side plate 205-1 and the drive mechanism, and the drive mechanism is used to drive the second swing arm mechanism to drive the side plate 205-1, thereby driving the vibrating sieve plate 205-3, the screening plate 205-4, the perforated sieve plate 205-5 and the tail sieve 205-6 to vibrate.

[0047] The second rocker arm mechanism includes a third transmission gear 205-7, a second rocker arm 205-8, a second bearing seat 205-9, and a second counterweight 205-10. The second rocker arm 205-8 is located below the tail screen 205-6. The two ends of the second rocker arm 205-8 are respectively provided with a second bearing seat 205-9, a third transmission gear 205-7, and a second counterweight 205-10. The second counterweight 205-10 forms the second rocker arm mechanism, and the third transmission gear 205-7 is connected to the drive mechanism.

[0048] like Figure 7 As shown, the crusher 209 includes a housing 209-1, a crushing shaft, a bushing 209-2, crushing blades 209-3, a pulley 209-4, and a discharge port 209-5. The housing 209-1 is mounted on the separation and cleaning device bracket 201, with one end open and located behind the separation device 204. The crushing shaft is provided with a bushing 209-2, and the circumferential surface of the bushing 209-2 is provided with multiple crushing blades 209-3. One end of the crushing shaft is connected to the inner wall of the housing 209-1 through a bearing, and the other end of the crushing shaft is connected to the pulley 209-4, which is connected to the drive mechanism. The other end of the housing 209-1 is provided with a discharge port 209-5.

[0049] The rotating spindle 102-3 has six toothed threshing components 102-6 arranged circumferentially; each toothed threshing component 102-6 is 1350 mm long; each toothed threshing component 102-6 is provided with nine nail tooth units 102-7, the spacing between adjacent nail teeth on each toothed threshing component 102-6 is 103 mm; the diameter of each nail tooth is 12 mm; the diameter of the grid bars of the right grid-type concave sieve 104 and the left grid-type concave sieve 106 is 4 mm, and the spacing between adjacent grid bars is 19 mm; the height of the guide plate 103 is 55 mm, and the distance between the guide plate 103 and the toothed threshing component 102-6 is 15 mm. These are the optimal parameter combinations, which can effectively thresh moist and easily sticky soybeans.

[0050] The present invention comprises, from top to bottom, a threshing device 1, a separation device 204, and a cleaning device 205; below the cleaning device 205 are arranged a double-outlet centrifugal fan 206, a grain collecting auger 207, and a re-threshing auger 208; this structure enables efficient threshing and cleaning of moist and easily sticky soybeans.

[0051] In the soybean harvesting process, the harvester's header harvests the soybeans and then conveys them to the threshing unit 1 for threshing. The soybeans are fed into the longitudinal axis flowing spiked roller 102 by the screw feeder 101 for threshing. The longitudinal axis flowing spiked roller 102 works in conjunction with the grid-type concave screen for threshing. The initially threshed soybeans fall from the threshing unit 1 to the separation unit 204 below. The platform-type separation unit's platform vibration and throwing action removes mixed particles and shorter materials such as broken ears. The soybeans fall into the cleaning device 205 below, while longer extensions such as soybean stalks are sent to the subsequent crusher 209 for crushing. During operation, the mixed materials falling into the cleaning device 205 are oscillated in concert by the transmission vibrating screen 204-1 of the separating device 204 and the vibrating screen plates 205-3, sieving plates 205-4, perforated screen plates 205-5, and tail screen 205-6 of the cleaning device 205. Longer detached materials are pushed to the crusher (209), while shorter detached materials fall into the screen. Driven by the dual-outlet centrifugal fan 206, the seed particles separate and fall through the screen holes, while broken stalks are discharged from the machine. Broken ears enter the re-threshing auger 208 for further threshing and purification. After cleaning, the soybeans fall into the grain collecting auger 207 and are transported to the grain silo.

[0052] This invention solves the problem that soybeans easily clump together due to surface moisture adsorption in humid environments, making it difficult for traditional cleaning equipment to effectively separate impurities and break up clumps. By employing a fan-screen cleaning mechanism formed by the coordinated operation of a longitudinal flow drum-type threshing device 1, a platform-type separation device 204, and a dual-outlet centrifugal fan 206 with a cleaning device 205, it reduces mechanical damage to soybeans during cleaning, improves soybean quality, and thus enhances the threshing, separation, and cleaning efficiency and cleanliness of the full-feed tracked soybean combine harvester. This fills a market gap, promotes the mechanization upgrade of key links in the soybean industry chain, and can significantly improve operational efficiency and reduce labor intensity. High-efficiency cleaning reduces soybean breakage rates, directly increasing farmers' income. Mechanized cleaning saves costs compared to manual labor and is suitable for large-scale planting needs. The dual-outlet centrifugal fan 206 reduces energy consumption and resource waste, aligning with the trend of green agriculture.

[0053] Example 2

[0054] A harvester includes the soybean threshing and cleaning device for mulched planting described in Example 1, and therefore has the aforementioned beneficial effects, which will not be repeated here.

[0055] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0056] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent embodiments or modifications made without departing from the spirit of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A soybean threshing and cleaning device suitable for mulched soybean cultivation, characterized in that, It includes a threshing device (1) and a separation and cleaning device (2); The threshing device (1) includes a spiral feed auger (101), a longitudinal flow spiked toothed drum (102), a guide plate (103), a right-grid concave sieve (104), a threshing device support (105), an upper cover plate, and a left-grid concave sieve (106); the feed inlet of the spiral feed auger (101) is installed on one end of the threshing device support (105), the output end of the spiral feed auger (101) is connected to one end of the longitudinal flow spiked toothed drum (102), and the other end of the longitudinal flow spiked toothed drum (102) is installed on the other end of the threshing device support (105); the threshing device support (105) A top cover plate is provided above the threshing device support (105), and a guide plate (103) is provided on the top cover plate and located above the longitudinal axis flow nail tooth roller (102); one side of the right grid-type concave plate screen (104) is installed on the right side of the threshing device support (105), the other side of the right grid-type concave plate screen (104) is connected to one side of the left grid-type concave plate screen (106), the other side of the left grid-type concave plate screen (106) is installed on the left side of the threshing device support (105), and the right grid-type concave plate screen (104) and the left grid-type concave plate screen (106) form a semi-circular concave plate screen located below the longitudinal axis flow nail tooth roller (102); The separation and cleaning device (2) is located below the threshing device (1). The separation and cleaning device (2) includes a separation and cleaning device support (201), a separation device (204), a cleaning device (205), a double-outlet centrifugal fan (206), a grain collecting auger (207), a re-threshing auger (208), and a crusher (209). The separation device (204) is installed in the upper middle part of the separation and cleaning device support (201). The cleaning device (205) is installed below the separation device (204). The double-outlet centrifugal fan (206) is installed below the cleaning device (205). The grain collecting auger (207) is installed below the cleaning device (205). The re-threshing auger (208) is installed below the cleaning device (205). The crusher (209) is installed behind the separation device (204).

2. The soybean threshing and cleaning device suitable for mulched planting according to claim 1, characterized in that, The longitudinal axis flow spiked roller (102) includes a left support spoke (102-2), a rotating main shaft (102-3), a first intermediate support spoke (102-4), a second intermediate support spoke (102-5), a toothed threshing assembly (102-6), a spiked tooth unit (102-7), a right support spoke (102-8), and a first transmission gear (102-1). The left support spoke (102-2) is installed at the output end of the screw feed auger (101); the left support spoke (102-2), the first intermediate support spoke (102-4), the second intermediate support spoke (102-5), and the right support spoke (102-8) are sequentially installed on the rotating main shaft (102-3); one end of the rotating main shaft (102-3) passes through the screw feed auger (101) and is connected to the bearing on the threshing device bracket (105), and the rotating main shaft (102-3) is connected to the bearing on the threshing device bracket (105). One end of the toothed bar threshing assembly (102-3) passes through the right support spoke (102-8) and is connected to the first transmission gear (102-1); the toothed bar threshing assembly (102-6) is arranged around the circumference of the rotating main shaft (102-3) and is installed on the left support spoke (102-2), the first intermediate support spoke (102-4), the second intermediate support spoke (102-5) and the right support spoke (102-8); the toothed bar unit (102-7) is installed on the toothed bar threshing assembly (102-6).

3. The soybean threshing and cleaning device suitable for mulched planting according to claim 1, characterized in that, The separation device (204) includes a transmission vibrating screen (204-1), a vibrating screen front seat (204-2), a transmission side plate (204-3), a first guide plate (204-4), and a first swing arm mechanism; The transmission vibrating screen (204-1) is provided with transmission side plates (204-3) on both sides respectively. One end of the transmission side plate (204-3) is provided with a vibrating screen front seat (204-2). One end of the transmission vibrating screen (204-1) is mounted on the separation and cleaning device bracket (201) through the vibrating screen front seat (204-2). The first guide plate (204-4) is placed on the other end of the transmission vibrating screen (204-1). The first swing arm mechanism is connected to the other end of the transmission side plate (204-3). The first swing arm mechanism is connected to the drive mechanism. The drive mechanism is used to drive the first swing arm mechanism to drive the transmission vibrating screen (204-1) to vibrate.

4. The soybean threshing and cleaning device suitable for mulched planting according to claim 3, characterized in that, The first rocker arm mechanism includes a second transmission gear (204-5), a first rocker arm (204-6), a first bearing seat (204-7), and a first counterweight (204-8). The first swing arm (204-6) is located at the other end of the transmission side plate (204-3). The two ends of the first swing arm (204-6) are respectively provided with a first bearing seat (204-7), a second transmission gear (204-5) and a first counterweight (204-8). The second transmission gear (204-5), the first swing arm (204-6), the first bearing seat (204-7) and the first counterweight (204-8) form the first swing arm mechanism. The second transmission gear (204-5) is connected to the drive mechanism.

5. The soybean threshing and cleaning device suitable for mulched planting according to claim 3, characterized in that, The separation and cleaning device (2) also includes a support trough plate (202) and a sealing plate (203); The support trough plate (202) is installed on one side of the separation and cleaning device bracket (201), and the vibrating screen front seat (204-2) on one side of the transmission side plate (204-3) is connected to the support trough plate (202); The sealing plate (203) is installed on the other side of the separation and cleaning device bracket (201), and the vibrating screen front seat (204-2) on the other side of the transmission side plate (204-3) is connected to the sealing plate (203).

6. The soybean threshing and cleaning device suitable for mulched planting according to claim 1, characterized in that, The cleaning device (205) includes a side plate (205-1), a second guide plate (205-2), a vibrating screen plate (205-3), a screening plate (205-4), a perforated screen plate (205-5), a tail screen (205-6), and a second swing arm mechanism; The side plate (205-1) is mounted on the separation and cleaning device bracket (201) and located below the separation device (204); the vibrating screen plate (205-3) is mounted on the side plate (205-1); the guide plate (205-2) is placed on the vibrating screen plate (205-3); the screening plate (205-4) is mounted on the side plate (205-1) and located below one end of the vibrating screen plate (205-3); the perforated screen plate (205-5) is mounted on the side plate (205-1) and located below the screening plate (205-4), and is used for screening. Soybeans fall into the grain collecting auger (207) for grain conveying; the tail screen (205-6) is installed on the side plate (205-1) and located below one end of the screening plate (205-4). Unthreshed pods fall through the tail screen (205-6) into the re-threshing auger (208); the second swing arm mechanism is connected to the side plate (205-1) and the drive mechanism. The drive mechanism is used to drive the second swing arm mechanism to drive the side plate (205-1) to drive the vibrating screen plate (205-3), screening plate (205-4), perforated screen plate (205-5) and tail screen (205-6) to vibrate.

7. The soybean threshing and cleaning device suitable for mulched planting according to claim 6, characterized in that, The second rocker arm mechanism includes a third transmission gear (205-7), a second rocker arm (205-8), a second bearing seat (205-9), and a second counterweight (205-10); The second swing arm (205-8) is located below the tail screen (205-6). The two ends of the second swing arm (205-8) are respectively provided with a second bearing seat (205-9), a third transmission gear (205-7), and a second counterweight (205-10). The second counterweight (205-10) forms the second swing arm mechanism, and the third transmission gear (205-7) is connected to the drive mechanism.

8. The soybean threshing and cleaning device suitable for mulched planting according to claim 1, characterized in that, The crusher (209) includes a housing (209-1), a crushing shaft, a bushing (209-2), crushing blades (209-3), a pulley (209-4), and a discharge port (209-5). The housing (209-1) is mounted on the separation and cleaning device support (201), with one end of the housing (209-1) open and located behind the separation device (204); The crushing shaft is provided with a bushing (209-2), and the circumferential surface of the bushing (209-2) is provided with a plurality of crushing blades (209-3); one end of the crushing shaft is connected to the inner wall of the housing (209-1) through a bearing, and the other end of the crushing shaft is connected to a pulley (209-4), which is connected to a drive mechanism; The other end of the shell (209-1) is provided with a discharge port (209-5).

9. The soybean threshing and cleaning device suitable for mulched planting according to claim 2, characterized in that, The rotating spindle (102-3) has six toothed threshing assemblies (102-6) arranged circumferentially; each toothed threshing assembly (102-6) is 1350 mm long; each toothed threshing assembly (102-6) is provided with nine nail tooth units (102-7); the distance between adjacent nail teeth on each toothed threshing assembly (102-6) is 103 mm; the diameter of each nail tooth is 12 mm; The grid bars of the right grid-type concave sieve (104) and the left grid-type concave sieve (106) have a diameter of 4 mm and a spacing of 19 mm between adjacent grid bars; the guide plate (103) has a height of 55 mm and a distance of 15 mm between the guide plate (103) and the toothed threshing assembly (102-6).

10. A harvester, characterized in that, Includes the soybean threshing and cleaning device suitable for mulched planting as described in any one of claims 1-9.

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