Low-loss self-cleaning cleaning device of grain production and breeding harvester

Abstract

The application discloses a low-loss self-cleaning cleaning device of a grain breeding and harvesting machine, and belongs to the technical field of agricultural machinery, which comprises a rack, a detachably connected connecting baffle in a hollowed-out portion of the rack, a vibrating screen connected to the top end of the interior of the rack, a vibrating screen driving device connected to the vibrating screen and the rack, a hollowed-out cross beam connected to one end of the rack close to the vibrating screen, a cross beam cover plate rotatably connected to the hollowed-out cross beam through a first hinge, the cross beam cover plate being rotatably connected to the one end of a first electric push rod through a rotating seat on the side away from the vibrating screen, the other end of the first electric push rod being fixed to the rack, and a gas blowing device connected to the rack close to the cross beam cover plate; the gas blowing device is a hidden double-angle movable gas blowing device based on machine vision guidance, can accurately remove residual grains from the top end of the vibrating screen, and blows the residual grains into the vibrating screen for vibration screening.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically relating to a low-loss self-cleaning device for a grain seed production harvester. Background Technology

[0002] With rising labor costs, grain harvesting is increasingly moving towards automation. Seed production is a crucial step in the promotion of improved varieties, primarily using combine harvesters. However, the requirements for cleaning during seed production differ fundamentally from those of ordinary field harvesting: not only must the cleaning operation achieve an extremely low grain loss rate, but more importantly, all grain residue in the cleaning chamber must be thoroughly removed at the end of a single operation or when switching varieties to ensure no risk of mixed seeds. This poses unprecedented challenges to combine harvesters, especially to the low-loss cleaning capacity and post-operation self-cleaning performance of their cleaning devices.

[0003] Existing combine harvester cleaning devices mostly employ a shutdown-and-water-injection cleaning method. At the end of a single operation or when switching varieties, the driver gets out of the harvester to inject water into the vertical conveyor auger, then manually opens the opening in the auger's bottom plate to remove residual grains. This method suffers from incomplete residue removal, complex operation procedures, opaque cleaning results, and low levels of automation and intelligence, making it unsuitable for continuous harvesting operations. Furthermore, seeds flowing out from the bottom plate opening fall directly into the field and are difficult to collect, exacerbating cleaning losses. Therefore, providing a low-loss, self-cleaning cleaning device for grain seed harvesters is a problem urgently needing to be solved by those skilled in the art. Summary of the Invention

[0004] The main objective of this invention is to provide a low-loss self-cleaning and sorting device for grain seed production harvesters to solve the aforementioned technical problems. This device is equipped with an air blowing device, which is a hidden, dual-angle movable air blowing device guided by machine vision. This device can precisely remove residual grains from the top of the vibrating screen and blow the residual grains into the vibrating screen for vibration screening.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-loss self-cleaning and sorting device for a grain seed harvester includes a frame. A connecting baffle can be detachably connected to the openwork section of the frame. A vibrating screen is connected to the top of the inside of the frame. The vibrating screen is connected to a vibrating screen drive device connected to the frame. An openwork crossbeam is also connected to one end of the frame near the vibrating screen. A crossbeam cover plate is rotatably connected to the openwork crossbeam via a first hinge. The side of the crossbeam cover plate away from the vibrating screen is rotatably connected to one end of a first electric push rod via a rotating seat. The other end of the first electric push rod is fixed to the frame. An air blowing device is also connected to the frame near the crossbeam cover plate. A control cabinet is also connected to the outer wall of the frame. The first electric push rod is electrically connected to the control cabinet.

[0007] Furthermore, the internal sidewall of the rack is provided with multiple first camera mounting slots and second camera mounting slots. Each first camera mounting slot is provided with a first industrial camera, and each second camera mounting slot is provided with a second industrial camera. Each opening of the first camera mounting slot is detachably connected with a first transparent cover plate, and each opening of the second camera mounting slot is detachably connected with a second transparent cover plate. The industrial cameras are electrically connected to the control cabinet.

[0008] Furthermore, the air blowing device includes an air compressor, which is connected to one end of the main air pipe via an air outlet connector. The other end of the main air pipe extends to the top of the frame and is connected to one end of a small-angle air pipe and a large-angle air pipe via an air inlet connector. The other ends of the small-angle air pipe and the large-angle air pipe pass through a connecting block. The small-angle air pipe and the large-angle air pipe are respectively connected to a small-angle nozzle and a large-angle nozzle via an air pipe connector and an angle adjustment connector. The side of the connecting block near the air compressor is connected to a moving mechanism fixed on the frame. The air compressor is electrically connected to the control cabinet.

[0009] Furthermore, the moving mechanism includes a linear guide rail. One end of the linear guide rail is connected to the frame via a mounting base plate, and the other end of the linear guide rail is connected to a motor mounting base. The motor mounting base is connected to a servo motor via a coupling. The output end of the servo motor is connected to a transmission wheel located inside a limit switch. The side of the connecting block closest to the air compressor is connected to a slider connecting plate, and the side of the slider connecting plate furthest from the connecting block is connected to a slider. The side of the slider furthest from the slider connecting plate is connected to a synchronous belt. The two ends of the synchronous belt are respectively fitted onto two transmission wheels inside the linear guide rail. One end of the linear guide rail is connected to the frame via a mounting base plate. A limit switch is also provided on the linear guide rail. The limit switch and the servo motor are both electrically connected to the control cabinet.

[0010] Furthermore, the vibrating screen includes a vibrating screen frame, which is formed by connecting multiple support plates. A woven screen is connected to the bottom of the inner wall of the vibrating screen frame. The woven screen is connected to the frame via a screen bracket. A fish scale screen, a tail screen, and two upper shaking plates are detachably connected between the vibrating screen frames. Multiple guide plates are installed on the upper shaking plates located at the top of the inner wall of the vibrating screen frame. Multiple spring teeth are fixedly connected to the side of the upper shaking plate away from the edge of the vibrating screen frame. A vibrating screen guide plate is also connected between the vibrating screen frames. The plate is located at the bottom end of the upper shaking plate connected to the top of the vibrating screen frame. A fish scale screen adjustment plate is connected to the side of the vibrating screen frame where the fish scale screen is installed. The fish scale screen adjustment plate passes through the vibrating screen frame and is connected to the fish scale screen. A baffle assembly is provided on the side of the vibrating screen away from the upper shaking plate. One end of the vibrating screen frame near the upper shaking plate is rotatably connected to the inner wall of the frame, and the other end is connected to the inner wall of the frame through the baffle assembly. A screen support is also connected to the bottom end of the vibrating screen frame. A sealing plate is connected to the bottom end of the screen support, and a canvas is provided on the sealing plate.

[0011] Furthermore, the baffle assembly includes an anti-grain-running baffle and an adjustment mechanism. The anti-grain-running baffle is slidably connected to the vibrating screen frame via a support plate on one side of the vibrating screen frame. Adjustment brackets are provided at both ends of the side of the anti-grain-running baffle away from the upper vibrating plate. The adjustment brackets are connected to one end of the second electric push rod, and the other end of the second electric push rod is connected to the guide rail slider. Baffle mounting grooves are provided on both opposite sides of the frame. Guide rails are connected in the baffle mounting grooves, and guide rail sliders are provided on the guide rails. The second electric push rod is electrically connected to the control cabinet.

[0012] Furthermore, the vibrating screen drive device includes a vibrating screen transmission device and a vibrating screen drive motor installed on the outer wall of the frame. The output end of the vibrating screen drive motor is connected to the vibrating screen transmission device through the vibrating screen conveyor belt, and the vibrating screen drive motor is electrically connected to the control cabinet.

[0013] The vibrating screen transmission device includes a vibrating screen shaft, with bearing seats and eccentric wheels connected to both ends of the vibrating screen shaft. The vibrating screen shaft is connected to the frame through the bearing seats. Each eccentric wheel is connected to one end of a rocker arm through a bearing. The other end of the rocker arm is connected to a connecting plate. The end of the connecting plate away from the rocker arm is connected to the vibrating screen. One end of the vibrating screen shaft is connected to a balance block, and the other end of the vibrating screen shaft is connected to a pulley. An eccentric block is also connected to the end of the vibrating screen shaft near the pulley. The vibrating screen shaft is connected to the vibrating screen drive motor through the pulley and the vibrating screen transmission belt.

[0014] Furthermore, the frame is also connected to an auger base plate, a grain conveying auger, and a waste conveying auger via connecting baffles. Both ends of the grain conveying auger and the waste conveying auger are rotatably connected to the connecting baffles on the frame. One end of each grain conveying auger and the waste conveying auger is connected to an auger drive wheel, which is connected to the auger drive motor via a conveyor belt. The auger base plate includes a base plate connecting plate, which is provided with two movable plate mounting slots. Movable plates are rotatably connected to each movable plate mounting slot via a second hinge. Multiple micro vibrators are provided at the bottom of the auger base plate. The grain conveying auger and the waste conveying auger are respectively located at the movable plates on the auger base plate. A fourth electric push rod is also connected to the movable plate, and the other end of the fourth electric push rod is connected to the frame. The fourth electric push rod, the auger drive motor, and the micro vibrators are all electrically connected to the control cabinet. The gap between the top of the auger base plate and the sealing plate is covered by a canvas.

[0015] Furthermore, a material collection box is provided at the bottom of the inner wall of the frame. Both ends of one side of the material collection box are connected to a material collection box bracket. The material collection box bracket is connected to one end of the third electric push rod. The other end of the third electric push rod is fixedly connected to the frame. The third electric push rod is electrically connected to the control cabinet.

[0016] Furthermore, the frame is also connected to a fan, a fan drive motor, and a control cabinet. The fan is located at the bottom of the inner wall of the frame, and the fan drive motor and the control cabinet are located on the outer wall of the frame. The output end of the fan drive motor is connected to the fan through a fan conveyor belt, and the control cabinet is electrically connected to the fan drive motor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention incorporates an air-blowing device, a hidden, dual-angle movable air-blowing device guided by machine vision, capable of precisely removing residual seeds from the top of the vibrating screen and blowing the residual seeds into the vibrating screen for further screening. Additionally, the invention features an auger bottom plate with an opening and closing mechanism combined with a micro-vibrator for material discharge, ensuring complete collection of residual seeds. Furthermore, an adjustable anti-grain-escape baffle is deployed at the tail of the vibrating screen, dynamically suppressing entrainment losses based on real-time monitoring. This innovative design significantly improves seed purity and reduces cleaning loss rates, providing core technological support for low-loss, high-purity seed harvesting in the seed industry. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a top view of the structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the local structure at point C.

[0023] Figure 4 This is a schematic diagram of the frame structure.

[0024] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 6 This is a schematic diagram of the local structure at point A.

[0026] Figure 7 This is a schematic diagram of the local structure at point B.

[0027] Figure 8 This is a schematic diagram of the blowing device.

[0028] Figure 9 This is a schematic diagram of the structure of a vibrating screen.

[0029] Figure 10 This is a schematic diagram of the side structure of the auger base plate.

[0030] Figure 11 This is a schematic diagram of the bottom surface structure of the auger base plate.

[0031] Figure 12 This is a schematic diagram of the transmission device for a vibrating screen.

[0032] Among them, 1-frame, 101-first electric push rod, 102-hollow crossbeam, 103-crossbeam cover plate, 104-first hinge, 105-first industrial camera, 106-first transparent cover plate, 107-guide rail, 108-guide rail slider, 109-second electric push rod, 110-second industrial camera, 111-second transparent cover plate, 112-third electric push rod, 113-collection box bracket, 114-collection box, 2 - Air blowing device, 201- Servo motor, 202- Coupling, 203- Motor mounting base, 204- Limit switch, 205- Linear guide rail, 206- Synchronous belt, 207- Slider, 208- Slider connecting plate, 209- Air inlet connector, 210- Mounting base plate, 211- Connecting block, 212- Air pipe connector, 213- Angle adjustment connector, 214- Small angle nozzle, 215- Large angle nozzle, 216- Main... 217 - Air outlet connector; 218 - Air compressor; 3 - Vibrating screen; 301 - Upper vibrating plate; 302 - Guide plate; 303 - Spring teeth; 304 - Fish scale screen; 305 - Tail screen; 306 - Support plate; 307 - Adjusting bracket; 308 - Vibrating screen guide plate; 309 - Woven screen; 310 - Fish scale screen adjusting plate; 311 - Vibrating screen frame; 4 - Fan drive motor; 5 - Fan; 6 - Grain conveying auger; 7 - Auger Base plate, 701-Second hinge, 702-Miniature vibrator, 703-Moving plate, 8-Irrelevant conveying auger, 9-Vibrating screen transmission device, 901-Connecting plate, 902-Pulley, 903-Eccentric block, 904-Rocking arm, 905-Bearing seat, 906-Balance block, 907-Bearing, 908-Eccentric wheel, 909-Vibrating screen shaft, 10-Vibrating screen drive motor, 11-Control cabinet, 12-Anti-grain spillage baffle. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1-12As shown, the present invention provides a low-loss self-cleaning and sorting device for a grain seed harvester, including a frame 1. A connecting baffle is detachably connected to the hollow part of the frame 1. A vibrating screen 3 is connected to the top of the inside of the frame 1. The vibrating screen 3 is connected to a vibrating screen drive device connected to the frame 1. A hollow crossbeam 102 is also connected to one end of the frame 1 near the vibrating screen 3. A crossbeam cover plate 103 is rotatably connected to the hollow crossbeam 102 via a first hinge 104. The side of the crossbeam cover plate 103 away from the vibrating screen 3 is rotatably connected to one end of a first electric push rod 101 via a rotating seat. The other end of the first electric push rod 101 is fixed to the frame 1. An air blowing device 2 is also connected to the frame 1 near the crossbeam cover plate 103. A control cabinet 11 is also connected to the outer wall of the frame 1. The first electric push rod 101 is electrically connected to the control cabinet 11. The air blowing device 2 can blow out the residual grain on the vibrating screen 3.

[0035] In this embodiment, the inner sidewall of the frame 1 is further provided with multiple first camera mounting slots and second camera mounting slots. Each first camera mounting slot houses a first industrial camera 105, and each second camera mounting slot houses a second industrial camera 110. A first transparent cover plate 106 is detachably connected to the opening of each first camera mounting slot, and a second transparent cover plate 111 is detachably connected to the opening of each second camera mounting slot. The industrial cameras 105 are electrically connected to the control cabinet 11. The first industrial camera 105 is responsible for identifying and providing feedback on residual seeds on the upper shaking plate, and for real-time monitoring of the cleaning status. The second transparent cover plate 106 protects the industrial camera 105 while ensuring its normal operation.

[0036] In this embodiment, the air blowing device 2 includes an air compressor 218. The air compressor 218 is connected to one end of the main air pipe 216 via an air outlet connector 217. The other end of the main air pipe 216 extends to the top of the frame 1 and is connected to one end of a small-angle air pipe and a large-angle air pipe via an air inlet connector 209. The other ends of the small-angle air pipe and the large-angle air pipe pass through a connecting block 211. The small-angle air pipe and the large-angle air pipe are respectively connected to a small-angle nozzle 214 and a large-angle nozzle 215 via an air pipe connector 212 and an angle adjustment connector 213. The side of the connecting block 211 near the air compressor 218 is connected to a moving mechanism fixed on the frame 1. The air compressor 218 is electrically connected to the control cabinet 11. The small-angle nozzle 214 and the large-angle nozzle 215 output airflow to clean up the grain residue near the upper shaking plate.

[0037] In this embodiment, the moving mechanism includes a linear guide rail 205. One end of the linear guide rail 205 is connected to the frame 1 via a mounting base plate 210, and the other end of the linear guide rail 205 is connected to a motor mounting base 203. The motor mounting base 203 is connected to a servo motor 201 via a coupling 202. The output end of the servo motor 201 is connected to a transmission wheel located inside a limit switch 204. The side of the connecting block 211 closest to the air compressor 218 is connected to a slider connecting plate 208, and the side of the slider connecting plate 208 furthest from the connecting block 211 is connected to a slider 207. The slider 207 is furthest from the sliding block 211. One side of the block connecting plate 208 is connected to the synchronous belt 206. The two ends of the synchronous belt 206 are respectively sleeved on two transmission wheels inside the linear guide 205. One end of the linear guide 205 is connected to the frame 1 through the mounting base plate 210. The linear guide 205 is also equipped with a limit switch 204. The limit switch 204 and the servo motor 201 are electrically connected to the control cabinet 11. The linear guide 205 is responsible for providing high-precision and high-rigidity guidance for the movement of the slider 207 to ensure that the motion trajectory is straight. The servo motor 201 is responsible for providing the driving force for the movement of the slide table and accurately controlling the position and speed of the movement.

[0038] In this embodiment, the vibrating screen 3 includes a vibrating screen frame 311, which is formed by connecting multiple support plates 306. A woven screen 309 is connected to the bottom of the inner wall of the vibrating screen frame 311. The woven screen 309 is connected to the frame 1 through a screen bracket. A fish scale screen 304, a tail screen 305, and two upper shaking plates 301 are detachably connected between the vibrating screen frames 311. Multiple guide plates 302 are installed on the upper shaking plates 301 located at the top of the inner wall of the vibrating screen frame 311. The side of the upper shaking plate 301 away from the edge of the vibrating screen frame 311 is fixed. Multiple spring teeth 303 are connected, and a vibrating screen guide plate 308 is also connected between the vibrating screen frames 311. The vibrating screen guide plate 308 is located at the bottom end of the upper shaking plate 301 connected to the top of the vibrating screen frame 311. A fish scale screen adjusting plate 310 is connected to the side of the vibrating screen frame 311 where a fish scale screen 304 is installed. The fish scale screen adjusting plate 310 passes through the vibrating screen frame 311 and connects to the fish scale screen 304. A baffle assembly is provided on the side of the vibrating screen 3 away from the upper shaking plate 301. One end of the vibrating screen frame 311 near the upper shaking plate 301 is rotatably connected to the inner wall of the frame 1, and the other end... The end is connected to the inner wall of the frame 1 via a baffle assembly. A screen support is also connected to the bottom of the vibrating screen frame 311. A sealing plate is connected to the bottom of the screen support, and canvas is installed on the sealing plate. The screen support supports the vibrating screen frame 311, and the sealing plate and canvas guide the grains. The upper shaking plate 301 receives the threshing material discharged from the threshing drum and performs initial shaking and conveying. The guide plate 302 guides and adjusts the flow direction and distribution of the material on the upper shaking plate 301. The spring teeth 303 agitate and loosen the material layer during vibration. The scale screen 304 is responsible for the main cleaning using its adjustable-angle scale screen bars, allowing grains and small impurities to pass through the screen holes, while guiding longer stems to be discharged backwards. The vibrating screen guide plate 308 guides the vibrating screen 3 to perform simple harmonic motion. The woven screen 309 is responsible for separating small grains and fine impurities that have passed through the scale screen 304. The scale screen adjustment plate 310 is responsible for adjusting the opening of the scale screen 304 to adapt to different crops and working conditions. In addition, when the vibrating screen frame 311 is in use, one end is rotatably connected to the frame 1, and the other end moves along the track on the baffle assembly with vibration.

[0039] In this embodiment, the baffle assembly includes an anti-grain-runaway baffle 12 and an adjustment mechanism. The anti-grain-runaway baffle 12 is slidably connected to the vibrating screen frame 311 via a support plate 306 on one side of the vibrating screen frame 311. Adjustment brackets 307 are provided at both ends of the side of the anti-grain-runaway baffle 12 away from the upper vibrating plate 301. One end of the adjustment bracket 307 is connected to one end of the second electric push rod 109, and the other end of the second electric push rod 109 is connected to the guide rail slider 108. Baffle mounting grooves are provided on both opposite sides of the frame 1. The guide rail 107 is connected in the baffle mounting groove, and the guide rail slider 108 is provided on the guide rail 107. The second electric push rod 109 is electrically connected to the control cabinet 11. The support plate 306 is responsible for supporting the anti-grain-runaway baffle 12.

[0040] In this embodiment, the vibrating screen drive device includes a vibrating screen transmission device 9 and a vibrating screen drive motor 10 disposed on the outer wall of the frame 1. The output end of the vibrating screen drive motor 10 is connected to the vibrating screen transmission device 9 through the vibrating screen conveyor belt. The vibrating screen drive motor 10 is electrically connected to the control cabinet 11.

[0041] The vibrating screen transmission device 9 includes a vibrating screen shaft 909. Both ends of the vibrating screen shaft 909 are connected to bearing seats 905 and eccentric wheels 908. The vibrating screen shaft 909 is connected to the frame 1 via the bearing seats 905. Each eccentric wheel 908 is connected to one end of a rocker arm 904 via a bearing 907. The other end of the rocker arm 904 is connected to a connecting plate 901. The end of the connecting plate 901 away from the rocker arm 904 is connected to the vibrating screen 3. One end of the vibrating screen shaft 909 is connected to a balance block 906, and the other end is connected to a pulley 902. An eccentric block 903 is also connected to the end of the vibrating screen shaft 909 closest to the pulley 902. The vibrating screen shaft 909 is connected to the vibrating screen drive motor 10 via pulley 902 and a vibrating screen transmission belt. In use, with the vibrating screen shaft 909 as the center, the vibrating screen drive motor 10 drives the vibrating screen shaft 909 to rotate via the vibrating screen transmission belt and pulley 902. The vibrating screen shaft 909 drives the eccentric wheel 908 to rotate. Since the eccentric wheel 908 is connected to the rocker arm 904 via bearing 907, the rocker arm 904 does not rotate with the eccentric wheel. The rocker arm 904 performs reciprocating motion, which drives the connecting plate 901 and the vibrating screen 3 to vibrate. The eccentric block 903 is used to adjust the amplitude and balance the centrifugal force. The balance block 906 is used to compensate for the inertial force and counteract the vibration.

[0042] In this embodiment, the frame 1 is also connected to an auger base plate 7, a grain conveying auger 6, and a waste conveying auger 8 via a connecting baffle. Both ends of the grain conveying auger 6 and the waste conveying auger 8 are rotatably connected to the connecting baffle on the frame 1. One end of each of the grain conveying auger 6 and the waste conveying auger 8 is connected to an auger drive wheel, which is connected to an auger drive motor via a conveyor belt. The auger base plate 7 includes a base plate connecting plate, and two movable plate mounting slots are provided on the base plate connecting plate. Movable plates 703 are rotatably connected to each movable plate mounting slot via a second hinge 701. Multiple micro vibrators 702 are provided at the bottom end of the auger base plate 7. The grain conveying auger 6 and the waste conveying auger... The feeding auger 8 is located at the movable plate 703 on the auger base plate 7. The bottom end of the movable plate 703 is also connected to the fourth electric push rod. The other end of the fourth electric push rod is connected to the frame 1. The fourth electric push rod, the auger drive motor and the micro vibrator 702 are all electrically connected to the control cabinet 11. The gap between the top of the auger base plate 7 and the sealing plate is covered by a canvas. The cooperation between the sealing plate and the canvas can prevent grains from leaking through the gap. The sealing plate and the canvas can guide the grains so that most of the grains after being vibrated and screened by the vibrating screen 3 enter the grain conveying auger 6 at the top of the auger base plate 7. The micro vibrator 702 is responsible for providing excitation force to promote the residual grains on the auger base plate 7 to fall into the collection box 114.

[0043] In this embodiment, a collection box 114 is also provided at the bottom of the inner wall of the frame 1. A collection box bracket 113 is connected to both ends of one side of the collection box 114. The collection box bracket 113 is connected to one end of the third electric push rod 112. The other end of the third electric push rod 112 is fixedly connected to the frame 1. The third electric push rod 112 is electrically connected to the control cabinet 11. The collection box 114 is used to collect grains.

[0044] In this embodiment, a fan 5, a fan drive motor 4, and a control cabinet 11 are also connected to the frame 1. The fan 5 is located at the bottom of the inner wall of the frame 1, and the fan drive motor 14 and the control cabinet 11 are located on the outer wall of the frame 1. The output end of the fan drive motor 4 is connected to the fan 5 through a fan conveyor belt, and the control cabinet 11 is electrically connected to the fan drive motor 4.

[0045] Working principle: Connect the control cabinet 11 to the power supply, start the vibrating screen drive motor 10 to put the grain into the harvester for processing, use the vibrating screen 3 for vibration screening, and at the same time start the servo motor 201 to adjust the position of the small angle nozzle 214 and the large angle nozzle 215 (install rollers under the air compressor 218 or use the main air pipe 216 made of flexible hose), start the blower 5 through the blower drive motor 4, and use the blower 5, the small angle nozzle 214 and the large angle nozzle 215 in conjunction with the vibrating screen 3 to screen the grains. The screened grains fall onto the auger bottom plate 7, the miscellaneous fish conveying auger 8 and the grain conveying auger 6 rotate to push the grains to accumulate, start the third electric push rod 112 to control the movement of the collection box 114, and use the fourth electric push rod to control the movable plate 703 to open, so that the collection box 114 can receive the grains falling from the auger bottom plate 7.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low-loss self-cleaning and sorting device for a grain seed production harvester, characterized in that, The machine includes a frame (1), and a connecting baffle can be detachably connected to the hollow part of the frame (1). A vibrating screen (3) is connected to the top of the inside of the frame (1). The vibrating screen (3) is connected to a vibrating screen drive device connected to the frame (1). A hollow crossbeam (102) is also connected to one end of the frame (1) near the vibrating screen (3). A crossbeam cover plate (103) is rotatably connected to the hollow crossbeam (102) through a first hinge (104). The side of the crossbeam cover plate (103) away from the vibrating screen (3) is rotatably connected to one end of a first electric push rod (101) through a rotating seat. The other end of the first electric push rod (101) is fixed on the frame (1). An air blowing device (2) is also connected to the frame (1) near the crossbeam cover plate (103). A control cabinet (11) is also connected to the outer wall of the frame (1). The first electric push rod (101) is electrically connected to the control cabinet (11). The internal sidewall of the frame (1) is also provided with a plurality of first camera mounting slots and second camera mounting slots. Each first camera mounting slot is provided with a first industrial camera (105), and each second camera mounting slot is provided with a second industrial camera (110). Each opening of the first camera mounting slot is detachably connected with a first transparent cover plate (106), and each opening of the second camera mounting slot is detachably connected with a second transparent cover plate (111). The industrial camera (105) is electrically connected to the control cabinet (11). The air blowing device (2) includes an air compressor (218), which is connected to one end of the main air pipe (216) through an air outlet connector (217). The other end of the main air pipe (216) extends to the top of the frame (1) and is connected to one end of a small-angle air pipe and a large-angle air pipe through an air inlet connector (209). The other end of the small-angle air pipe and the large-angle air pipe passes through a connecting block (211). The small-angle air pipe and the large-angle air pipe are connected to a small-angle nozzle (214) and a large-angle nozzle (215) respectively through an air pipe connector (212) and an angle adjustment connector (213). The side of the connecting block (211) near the air compressor (218) is connected to a moving mechanism fixed on the frame (1). The air compressor (218) is electrically connected to the control cabinet (11).

2. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 1, characterized in that, The moving mechanism includes a linear guide rail (205), one end of which is connected to the frame (1) via a mounting base plate (210), and the other end of which is connected to a motor mounting base (203). The motor mounting base (203) is connected to a servo motor (201) via a coupling (202). The output end of the servo motor (201) is connected to a transmission wheel located inside a limit switch (204). The connecting block (211) is connected to a slider connecting plate (208) on the side near the air compressor (218). (208) The side away from the connecting block (211) is connected to the slider (207). The side away from the slider connecting plate (208) is connected to the synchronous belt (206). The two ends of the synchronous belt (206) are respectively sleeved on the two transmission wheels inside the linear guide (205). One end of the linear guide (205) is connected to the frame (1) through the mounting base plate (210). The linear guide (205) is also provided with a limit switch (204). The limit switch (204) and the servo motor (201) are both electrically connected to the control cabinet (11).

3. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 2, characterized in that, The vibrating screen (3) includes a vibrating screen frame (311), which is formed by connecting multiple support plates (306). A woven screen (309) is connected to the bottom of the inner wall of the vibrating screen frame (311). A fish scale screen (304), a tail screen (305), and two upper shaking plates (301) are detachably connected between the vibrating screen frames (311). Multiple guide plates (302) are installed on the upper shaking plates (301) located at the top of the inner wall of the vibrating screen frame (311). Multiple spring teeth (303) are fixedly connected to the side of the upper shaking plate (301) away from the edge of the vibrating screen frame (311). A vibrating screen guide plate (308) is also connected between the vibrating screen frames (311). 8) The bottom end of the upper shaking plate (301) connected to the top of the vibrating screen frame (311) is connected to the fish scale screen (304) on the side of the vibrating screen frame (311). The fish scale screen adjustment plate (310) is connected through the vibrating screen frame (311) and the fish scale screen (304). A baffle assembly is provided on the side of the vibrating screen (3) away from the upper shaking plate (301). One end of the vibrating screen frame (311) close to the upper shaking plate (301) is rotatably connected to the inner wall of the frame (1), and the other end is connected to the inner wall of the frame (1) through the baffle assembly. A screen bracket is also connected to the bottom end of the vibrating screen frame (311). A sealing plate is connected to the bottom end of the screen bracket. A canvas is provided on the sealing plate.

4. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 3, characterized in that, The baffle assembly includes an anti-grain-running baffle (12) and an adjustment mechanism. The anti-grain-running baffle (12) is slidably connected to the vibrating screen frame (311) via a support plate (306) on one side of the vibrating screen frame (311). Adjustment brackets (307) are provided at both ends on the side of the anti-grain-running baffle (12) away from the upper vibrating plate (301). The adjustment brackets (307) are connected to one end of the second electric push rod (109). The other end of the second electric push rod (109) is connected to the guide rail slider (108). Baffle mounting slots are provided on both opposite sides of the frame (1). A guide rail (107) is connected in the baffle mounting slot. A guide rail slider (108) is provided on the guide rail (107). The second electric push rod (109) is electrically connected to the control cabinet (11).

5. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 1, characterized in that, The vibrating screen drive device includes a vibrating screen transmission device (9) and a vibrating screen drive motor (10) installed on the outer wall of the frame (1). The output end of the vibrating screen drive motor (10) is connected to the vibrating screen transmission device (9) through the vibrating screen conveyor belt. The vibrating screen drive motor (10) is electrically connected to the control cabinet (11). The vibrating screen transmission device (9) includes a vibrating screen shaft (909), both ends of which are connected to bearing seats (905) and eccentric wheels (908). The vibrating screen shaft (909) is connected to the frame (1) through the bearing seats (905). The eccentric wheels (908) are all connected to one end of the rocker arm (904) through bearings (907). The other end of the rocker arm (904) is connected to the connecting plate (901). 1) The end away from the rocker arm (904) is connected to the vibrating screen (3). One end of the vibrating screen shaft (909) is connected to the balance block (906), and the other end of the vibrating screen shaft (909) is connected to the pulley (902). An eccentric block (903) is also connected to the end of the vibrating screen shaft (909) near the pulley (902). The vibrating screen shaft (909) is connected to the vibrating screen drive motor (10) through the pulley (902) and the vibrating screen transmission belt.

6. A low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 3, characterized in that, The frame (1) is also connected to the auger base plate (7), the grain conveying auger (6), and the waste conveying auger (8) via connecting baffles. Both ends of the grain conveying auger (6) and the waste conveying auger (8) are rotatably connected to the connecting baffles on the frame (1). One end of the grain conveying auger (6) and the waste conveying auger (8) is connected to the auger drive wheel. The auger drive wheel is connected to the auger drive motor via a conveyor belt. The auger base plate (7) includes a base plate connecting plate. The base plate connecting plate is provided with two movable plate mounting slots. The movable plate mounting slots are connected by a second hinge. (701) A movable plate (703) is rotatably connected. Multiple micro vibrators (702) are provided at the bottom end of the auger base plate (7). The grain conveying auger (6) and the waste conveying auger (8) are respectively located at the movable plate (703) on the auger base plate (7). A fourth electric push rod is also connected to the bottom end of the movable plate (703). The other end of the fourth electric push rod is connected to the frame (1). The fourth electric push rod, the auger drive motor and the micro vibrators (702) are all electrically connected to the control cabinet (11). The gap between the top of the auger base plate (7) and the sealing plate is covered by a canvas.

7. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 1, characterized in that, The bottom of the inner wall of the frame (1) is also provided with a collection box (114). Both ends of the collection box (114) are connected to a collection box bracket (113). The collection box bracket (113) is connected to one end of the third electric push rod (112). The other end of the third electric push rod (112) is fixedly connected to the frame (1). The third electric push rod (112) is electrically connected to the control cabinet (11).

8. The low-loss self-cleaning and sorting device for a grain seed production harvester according to claim 1, characterized in that, The frame (1) is also connected to a fan (5), a fan drive motor (4) and a control cabinet (11). The fan (5) is located at the bottom of the inner wall of the frame (1), and the fan drive motor (14) and the control cabinet (11) are located on the outer wall of the frame (1). The output end of the fan drive motor (4) is connected to the fan (5) through the fan conveyor belt, and the control cabinet (11) is electrically connected to the fan drive motor (4).

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