Low-loss self-cleaning cleaning device of grain seed reproduction harvester

Abstract

The invention discloses a low-loss self-cleaning cleaning device of a grain production seed reproduction harvester, which belongs to the technical field of agricultural machinery and comprises a rack, a connecting baffle is detachably connected to the hollow part of the rack, a vibrating screen is connected to the top end in the rack and connected with a vibrating screen driving device connected to the rack, and the vibrating screen driving device is connected to the rack. The end, close to the vibrating screen, of the rack is further connected with a hollowed-out beam, the hollowed-out beam is rotationally connected with a beam cover plate through a first hinge, the side, away from the vibrating screen, of the beam cover plate is rotationally connected with one end of a first electric push rod through a rotating base, and the other end of the first electric push rod is fixed to the rack. An air blowing device is further connected to the position, close to the cross beam cover plate, of the rack; the air blowing device is arranged and is a hidden double-angle movable air blowing device based on machine vision guidance, residual grains at the top end of the vibrating screen can be accurately removed, and the residual grains are blown into the vibrating screen for vibrating screening.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a low-loss self-cleaning device for a grain breeding and harvesting machine. Background Art

[0002] With rising labor costs, grain harvesting is increasingly automated. Seed propagation, a crucial step in promoting improved varieties, primarily utilizes a combine harvester. However, the cleaning requirements for seed propagation differ significantly from those for field harvesting. Not only must the cleaning process achieve an extremely low seed loss rate, but more importantly, all remaining grain in the cleaning chamber must be completely removed at the end of a single operation or when switching varieties to ensure there is no risk of seed mixing. This presents unprecedented challenges for combine harvesters, particularly their cleaning mechanisms, in terms of their low-loss cleaning capabilities and post-operation self-cleaning capabilities.

[0003] Existing combine harvester cleaning devices mostly use the method of stopping the machine and injecting water for cleaning. At the end of a single operation or when switching varieties, the driver gets off the vehicle and injects water into the vertical conveying auger, and then manually opens the opening of the auger bottom plate to remove the residual grains at the auger. This method still has problems such as incomplete residue removal, complicated operating procedures, opaque cleaning effects, and low levels of automation and intelligence, making it unsuitable for continuous harvesting operations. In addition, the seeds flowing out of the bottom plate opening will fall directly into the field and are difficult to collect, exacerbating the cleaning losses. Therefore, how to provide a low-loss self-cleaning cleaning device for grain breeding harvesters is a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] The main purpose of this invention is to provide a low-loss, self-cleaning device for a grain seed harvester to address the aforementioned technical problems. The device is equipped with 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 them into the vibrating screen for vibratory screening.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A low-loss self-cleaning and sorting device for a grain breeding and seed harvester comprises a frame, a connecting baffle is detachably connected to the hollow part of the frame, a vibrating screen is connected to the top end of the frame, the vibrating screen is connected to the vibrating screen driving device connected to the frame, a hollow crossbeam is also connected to one end of the frame close to the vibrating screen, a crossbeam cover is rotatably connected to the hollow crossbeam via a first hinge, a side of the crossbeam cover 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, an outer wall of the frame is also connected to a control cabinet, and the first electric push rod is electrically connected to the control cabinet.

[0007] Furthermore, a plurality of first camera mounting slots and second camera mounting slots are provided on the inner side walls of the frame, a first industrial camera is provided in each of the first camera mounting slots, a second industrial camera is provided in each of the second camera mounting slots, the openings of the first camera mounting slots are detachably connected to a first transparent cover, the openings of the second camera mounting slots are detachably connected to a second transparent cover, and the industrial cameras are electrically connected to the control cabinet.

[0008] Furthermore, the blowing device includes an air compressor, which is connected to one end of the main air pipe through an air outlet joint, and the other end of the main air pipe extends to the top of the frame and is connected to one end of the small-angle air pipe and the large-angle air pipe through an air inlet joint. The other ends of the small-angle air pipe and the large-angle air pipe pass through a connecting block, and the small-angle air pipe and the large-angle air pipe are respectively connected to a small-angle nozzle and a large-angle nozzle through an air pipe joint and an angle adjustment joint. The side of the connecting block close to the air compressor is connected to a movable mechanism fixed on the frame, and 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 through a mounting base, the other end of the linear guide rail is connected to a motor mounting seat, the motor mounting seat is connected to a servo motor through a coupling, the output end of the servo motor is connected to a transmission wheel arranged inside the limit switch, the side of the connecting block close to the air compressor is connected to the slider connecting plate, the side of the slider connecting plate away from the connecting block is connected to the slider, the side of the slider away from the slider connecting plate is connected to the synchronous belt, the two ends of the synchronous belt are respectively mounted on the two transmission wheels inside the linear guide rail, one end of the linear guide rail is connected to the frame through a mounting base, a limit switch is also provided on the linear guide rail, and the limit switch and the servo motor are electrically connected to the control cabinet.

[0010] Furthermore, the vibrating screen includes a vibrating screen frame, which is formed by connecting a plurality of support plates. A woven screen is connected to the bottom end of the inner wall of the vibrating screen frame, and the woven screen is connected to the frame through a screen bracket. A fish scale screen, a tail screen and two upper shaking plates are detachably connected between the vibrating screen frames. A plurality of guide plates are installed on the upper shaking plate located at the top end of the inner wall of the vibrating screen frame. A plurality of 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, and the fish scale screen adjustment plate is connected to the fish scale screen installed on the side of the vibrating screen frame. 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 close to 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. The bottom end of the vibrating screen frame is also connected to a screen bracket, and the bottom end of the screen bracket is connected to a sealing plate, and a canvas is provided on the sealing plate.

[0011] Furthermore, the baffle assembly includes an anti-grain escape baffle and an adjustment mechanism. The anti-grain escape baffle is slidably connected to the vibrating screen frame through 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 escape baffle away from the upper shaking plate. The adjustment bracket is 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, and a guide rail is connected in the baffle mounting groove. A guide rail slider is provided on the guide rail, and the second electric push rod is electrically connected to the control cabinet.

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

[0013] The vibration screen transmission device includes a vibration screen shaft, both ends of the vibration screen shaft are connected to a bearing seat and an eccentric wheel, the vibration screen shaft is connected to the frame through the bearing seat, the eccentric wheel is connected to one end of the rocking arm through a bearing, the other end of the rocking arm is connected to the connecting plate, the end of the connecting plate away from the rocking arm is connected to the vibration screen, one end of the vibration screen shaft is connected to the balance block, the other end of the vibration screen shaft is connected to the pulley, the end of the vibration screen shaft close to the pulley is also connected to the eccentric block, and the vibration screen shaft is connected to the vibration screen drive motor through the pulley and the vibration screen transmission belt.

[0014] The transmission mechanism that this transmission mechanism is used for the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that the transmission mechanism is that

[0015] Furthermore, a material collection box is provided at the bottom end of the inner wall of the frame, and 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, and the third electric push rod is electrically connected to the control cabinet.

[0016] Furthermore, the rack is also connected to a fan, a fan drive motor and a control cabinet, the fan is located at the bottom end of the inner wall of the rack, the fan drive motor and the control cabinet are located on the outer wall of the rack, 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 features a hidden, dual-angle, movable air blowing mechanism guided by machine vision. This device precisely removes residual seeds from the top of the vibrating screen, blowing them into the vibrating screen for screening. Furthermore, it incorporates an auger baseplate with an opening and closing mechanism and a micro-vibrator for vibration-free feeding, ensuring the complete collection of residual seeds. Furthermore, a dynamically adjustable anti-escape baffle is deployed at the rear of the vibrating screen to dynamically suppress entrainment losses based on real-time monitoring. This innovative design significantly improves seed purity and reduces seed loss, providing core technical support for low-loss, high-purity seed harvesting in the seed industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0022] Figure 3 Schematic diagram of the local structure at C.

[0023] Figure 4 A schematic diagram of the rack structure.

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention.

[0025] Figure 6 Schematic diagram of the local structure at point A.

[0026] Figure 7 Schematic diagram of the local structure at point B.

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

[0028] Figure 9 Schematic diagram of the structure of the vibrating screen.

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

[0030] Figure 11 It is a schematic diagram of the structure of the auger base plate when viewed from above.

[0031] Figure 12 It is a structural diagram of the vibrating screen transmission device.

[0032] Among them, 1-frame, 101-first electric push rod, 102-hollow beam, 103-beam cover, 104-first hinge, 105-first industrial camera, 106-first transparent cover, 107-guide rail, 108-guide rail slider, 109-second electric push rod, 110-second industrial camera, 111-second transparent cover, 112-third electric push rod, 113-collection box bracket, 114-collection box, 2 -Blowing device, 201-Servo motor, 202-Coupling, 203-Motor mounting seat, 204-Limit switch, 205-Linear guide, 206-Timing belt, 207-Slider, 208-Slider connecting plate, 209-Inlet connector, 210-Mounting base plate, 211-Connecting block, 212-Trachea connector, 213-Angle adjustment connector, 214-Small angle nozzle, 215-Large angle nozzle, 216-Main Trachea, 217- outlet connector, 218- air compressor, 3- vibrating screen, 301- upper shaking plate, 302- guide plate, 303- spring teeth, 304- fish scale screen, 305- tail screen, 306- support plate, 307- adjustment bracket, 308- vibrating screen guide plate, 309- woven screen, 310- fish scale screen adjustment plate, 311- vibrating screen frame, 4- fan drive motor, 5- fan, 6- grain conveying auger, 7- auger Bottom plate, 701-second hinge, 702-micro vibrator, 703-movable plate, 8-miscellaneous conveying auger, 9-vibrating screen transmission device, 901-connecting plate, 902-pulley, 903-eccentric block, 904-rocking arm, 905-bearing seat, 906-balancing block, 907-bearing, 908-eccentric wheel, 909-vibrating screen shaft, 10-vibrating screen drive motor, 11-control cabinet, 12-anti-escape grain baffle. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 12As shown, the present invention provides a low-loss self-cleaning and sorting device for a grain breeding and harvesting machine, including a frame 1, wherein the hollow part of the frame 1 is detachably connected to a connecting baffle, the top end of the frame 1 is connected to a vibrating screen 3, the vibrating screen 3 is connected to a vibrating screen driving device connected to the frame 1, the end of the frame 1 close to the vibrating screen 3 is also connected to a hollow beam 102, the hollow beam 102 is rotatably connected to a beam cover 103 through a first hinge 104, the side of the beam cover 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, the frame 1 is also connected to a blowing device 2 near the beam cover 103, the outer wall of the frame 1 is also connected to a control cabinet 11, and the first electric push rod 101 is electrically connected to the control cabinet 11; the blowing device 2 can blow out the residual grain on the vibrating screen 3.

[0035] In this embodiment, the inner sidewalls of the frame 1 are further provided with a plurality of first and second camera mounting slots. Each of the first camera mounting slots is provided with a first industrial camera 105, and each of the second camera mounting slots is provided with a second industrial camera 110. A first transparent cover plate 106 is detachably connected to the openings of the first camera mounting slots, and a second transparent cover plate 111 is detachably connected to the openings of the second camera mounting slots. 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 grains on the upper shaking plate and for real-time monitoring of the machine cleaning status. The second transparent cover plate 106 is responsible for protecting the industrial camera 105 and ensuring its normal operation.

[0036] In this embodiment, the blowing device 2 includes an air compressor 218, which is connected to one end of the main air pipe 216 through an air outlet joint 217, and the other end of the main air pipe 216 extends to the top of the frame 1 and is connected to one end of the small-angle air pipe and the large-angle air pipe through an air inlet joint 209. The other ends of the small-angle air pipe and the large-angle air pipe pass through a connecting block 211, and 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 through an air pipe joint 212 and an angle adjustment joint 213. The side of the connecting block 211 close to the air compressor 218 is connected to a movable mechanism fixed on the frame 1, and 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 the grain residue near the upper shaking plate.

[0037] In this embodiment, the moving mechanism includes a linear guide 205, one end of the linear guide 205 is connected to the frame 1 through a mounting base 210, the other end of the linear guide 205 is connected to a motor mounting seat 203, the motor mounting seat 203 is connected to a servo motor 201 through a coupling 202, the output end of the servo motor 201 is connected to a transmission wheel arranged inside the limit switch 204, the side of the connecting block 211 close to the air compressor 218 is connected to the slider connecting plate 208, the side of the slider connecting plate 208 away from the connecting block 211 is connected to the slider 207, and the slider 207 is away from the slider One side of the block connecting plate 208 is connected to the synchronous belt 206, and the two ends of the synchronous belt 206 are respectively mounted 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 210. A limit switch 204 is also provided on the linear guide 205. 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 driving force for the slide movement 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 a plurality of support plates 306. The bottom end of the inner wall of the vibrating screen frame 311 is connected to a woven screen 309, and the woven screen 309 is connected to the frame 1 through a screen bracket. The vibrating screen frame 311 is also detachably connected with a fish scale screen 304, a tail screen 305 and two upper shaking plates 301. A plurality of guide plates 302 are installed on the upper shaking plate 301 at the top of the inner wall of the vibrating screen frame 311. The upper shaking plate 301 is fixed on one side away from the edge of the vibrating screen frame 311. A plurality of spring teeth 303 are connected, and a vibrating screen guide plate 308 is also connected between the vibrating screen frame 311. The vibrating screen guide plate 308 is located at the bottom of the upper shaking plate 301 connected to the top of the vibrating screen frame 311. The fish scale screen 304 is installed on the side of the vibrating screen frame 311 and is connected to the fish scale screen adjustment plate 310. The fish scale screen adjustment plate 310 passes through the vibrating screen frame 311 and is connected 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 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. The end is connected to the inner wall of the frame 1 through a baffle assembly, and the bottom end of the vibration screen frame 311 is also connected to a screen bracket, and the bottom end of the screen bracket is connected to a sealing plate, and a canvas is provided on the sealing plate. The screen bracket is used to support the vibration screen frame 311, and the sealing plate and the canvas can guide the grains; the upper shaking plate 301 is responsible for receiving the threshing drum discharged and performing preliminary shaking and transportation on it, the guide plate 302 is responsible for guiding and adjusting the flow direction and distribution of the material on the upper shaking plate 301, and the spring teeth 303 are responsible for stirring and loosening the material layer during the vibration process, 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 passing through the fish scale screen 304. The fish scale screen adjustment plate 310 is responsible for adjusting the opening of the fish scale screen 304 to adapt to different crops and working conditions. In addition, when in use, the vibrating screen frame 311 maintains a rotational connection between one end and the frame 1, and the other end will move along the track on the baffle assembly with the vibration.

[0039] In this embodiment, the baffle assembly includes an anti-grain escape baffle 12 and an adjustment mechanism. The anti-grain escape baffle 12 is slidably connected to the vibrating screen frame 311 through a support plate 306 on one side of the vibrating screen frame 311. Adjustment brackets 307 are provided at both ends of the anti-grain escape baffle 12 on the side away from the upper shaking plate 301. 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 to the baffle mounting groove, and 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, and the support plate 306 is responsible for supporting the anti-grain escape 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 provided 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 a vibrating screen conveyor belt, and the vibrating screen drive motor 10 is electrically connected to the control cabinet 11.

[0041] The vibration screen transmission device 9 includes a vibration screen shaft 909, and both ends of the vibration screen shaft 909 are connected to a bearing seat 905 and an eccentric wheel 908. The vibration screen shaft 909 is connected to the frame 1 through the bearing seat 905, and the eccentric wheel 908 is connected to one end of the rocking arm 904 through a bearing 907. The other end of the rocking arm 904 is connected to the connecting plate 901, and the end of the connecting plate 901 away from the rocking arm 904 is connected to the vibration screen 3. One end of the vibration screen shaft 909 is connected to the balance block 906, and the other end of the vibration screen shaft 909 is connected to the pulley 902. The end of the vibration screen shaft 909 close to the pulley 902 is also connected to the eccentric block 903. The vibrating screen shaft 909 is connected to the vibrating screen drive motor 10 through the pulley 902 and the vibrating screen transmission belt; when in use, the vibrating screen shaft 909 is the center, and the vibrating screen drive motor 10 drives the vibrating screen shaft 909 to rotate through the vibrating screen transmission belt and the pulley 902, and the vibrating screen shaft 909 drives the eccentric wheel 908 to rotate. Since the eccentric wheel 908 is connected to the rocking arm 904 through the bearing 907, the rocking arm 904 will not rotate with the eccentric wheel, and the rocking arm 904 performs reciprocating motion, and the rocking arm 904 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 balancing block 906 is used to compensate for the inertial force and offset the vibration.

[0042] In this embodiment, the frame 1 is also connected to the auger base plate 7, the grain conveying auger 6 and the miscellaneous conveying auger 8 through the connecting baffle, and both ends of the grain conveying auger 6 and the miscellaneous conveying auger 8 are rotatably connected to the connecting baffle on the frame 1, and one end of the grain conveying auger 6 and the miscellaneous conveying auger 8 is connected to an auger transmission wheel, and the auger transmission wheel is connected to the auger drive motor through a conveyor belt, and the auger base plate 7 includes a base plate connecting plate, and two movable plate mounting grooves are provided on the base plate connecting plate, and the movable plate mounting grooves are rotatably connected to the movable plate 703 through the second hinge 701, and a plurality of micro-vibrators 702 are provided at the bottom end of the auger base plate 7, and the grain conveying auger 6 and the miscellaneous conveying The feeding auger 8 is respectively located at the movable plate 703 on the auger bottom plate 7. The bottom end of the movable plate 703 is also connected to a 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 bottom plate 7 and the sealing plate is covered by canvas. The cooperation of the sealing plate and the canvas can prevent the grains from leaking through the gap. The sealing plate and the canvas can guide the grains so that most of the grains after vibration screening by the vibrating screen 3 enter the grain feeding auger 6 at the top of the auger bottom plate 7. The micro vibrator 702 is responsible for providing excitation force to promote the residual grains on the auger bottom plate 7 to fall into the collection box 114.

[0043] In this embodiment, a collection box 114 is also provided at the bottom end of the inner wall of the frame 1, and both ends of one side of the collection box 114 are connected to a collection box bracket 113, and the collection box bracket 113 is connected to one end of the third electric push rod 112, and the other end of the third electric push rod 112 is fixedly connected to the frame 1, and 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, 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 end 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 a roller under the air compressor 218 or use a main air pipe 216 made of hose material), start the fan 5 through the fan drive motor 4, and use the fan 5, the small-angle nozzle 214 and the large-angle nozzle 215 to cooperate with the vibrating screen 3 to screen the grains. The screened grains fall to the auger bottom plate 7, and the fish conveying auger 8 and the grain conveying auger 6 rotate to push the grain grains to accumulate. Start the third electric push rod 112 to control the movement of the aggregate box 114, and use the fourth electric push rod to control the movable plate 703 to move and open, so that the aggregate box 114 receives the grains dropped from the auger bottom plate 7.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0047] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low-loss self-cleaning device for a grain seed harvester, characterized in that: The invention comprises a frame (1), wherein a connecting baffle is detachably connected to a hollow portion of the frame (1), a vibrating screen (3) is connected to the top of the inner portion of the frame (1), the vibrating screen (3) is connected to a vibrating screen driving device connected to the frame (1), an end of the frame (1) close to the vibrating screen (3) is further connected to a hollow crossbeam (102), a crossbeam cover plate (103) is rotatably connected to the hollow crossbeam (102) via a first hinge (104), a 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 further connected to the portion of the frame (1) close to the crossbeam cover plate (103), an outer wall of the frame (1) is further connected to a control cabinet (11), and the first electric push rod (101) is electrically connected to the control cabinet (11).

2. A low-loss self-cleaning device for a grain seed multiplication harvester according to claim 1, characterized in that: The inner side wall of the frame (1) is also provided with a plurality of first camera mounting slots and second camera mounting slots, wherein a first industrial camera (105) is provided in each of the first camera mounting slots, and a second industrial camera (110) is provided in each of the second camera mounting slots, and a first transparent cover plate (106) is detachably connected to the opening of each of the first camera mounting slots, and a second transparent cover plate (111) is detachably connected to the opening of each of the second camera mounting slots, and the industrial cameras (105) are electrically connected to the control cabinet (11).

3. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 1, characterized in that: The blowing device (2) comprises an air compressor (218), the air compressor (218) being connected to one end of a main air pipe (216) via an air outlet joint (217), the other end of the main air pipe (216) extending to the top of the frame (1) and being connected to one end of a small-angle air pipe and a large-angle air pipe via an air inlet joint (209), the other ends of the small-angle air pipe and the large-angle air pipe passing through a connecting block (211), the small-angle air pipe and the large-angle air pipe being connected to a small-angle nozzle (214) and a large-angle nozzle (215) respectively via an air pipe joint (212) and an angle adjustment joint (213), the connecting block (211) being connected to a movable mechanism fixed on the frame (1) on a side close to the air compressor (218), and the air compressor (218) being electrically connected to a control cabinet (11).

4. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 3, characterized in that: The moving mechanism comprises a linear guide rail (205), one end of the linear guide rail (205) is connected to the frame (1) via a mounting base (210), the other end of the linear guide rail (205) is connected to a motor mounting seat (203), the motor mounting seat (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 arranged inside a limit switch (204), the side of the connecting block (211) close to the air compressor (218) is connected to a slider connecting plate (208), and the slider connecting plate The side of the slider (208) away from the connecting block (211) is connected to the slider (207), and the side of the slider (207) away from the slider connecting plate (208) is connected to the synchronous belt (206). The two ends of the synchronous belt (206) are respectively mounted on two transmission wheels inside the linear guide rail (205). One end of the linear guide rail (205) is connected to the frame (1) through the mounting base (210). A limit switch (204) is also provided on the linear guide rail (205). The limit switch (204) and the servo motor (201) are both electrically connected to the control cabinet (11).

5. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 4, characterized in that: The vibrating screen (3) includes a vibrating screen frame (311), the vibrating screen frame (311) is formed by connecting a plurality of support plates (306), a woven screen (309) is connected to the bottom end 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 frame (311), a plurality of guide plates (302) are installed on the upper shaking plate (301) located at the top end of the inner wall of the vibrating screen frame (311), a plurality of 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 further connected between the vibrating screen frame (311), and the vibrating screen guide plate (308) is detachably connected to the vibrating screen frame (311). 8) The bottom end of the upper shaking plate (301) is connected to the top of the vibration screen frame (311), and the fish scale screen (304) is installed on the side of the vibration screen frame (311) and is connected to the fish scale screen adjustment plate (310). The fish scale screen adjustment plate (310) passes through the vibration screen frame (311) and is connected to the fish scale screen (304). A baffle assembly is provided on the side of the vibration screen (3) away from the upper shaking plate (301). One end of the vibration 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. The bottom end of the vibration screen frame (311) is also connected to a screen bracket, and the bottom end of the screen bracket is connected to a sealing plate, and a canvas is provided on the sealing plate.

6. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 5, characterized in that: The baffle assembly includes an anti-escape baffle (12) and an adjustment mechanism. The anti-escape baffle (12) is slidably connected to the vibrating screen frame (311) through 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-escape baffle (12) away from the upper shaking plate (301). The adjustment bracket (307) is connected to one end of a second electric push rod (109), and the other end of the second electric push rod (109) is connected to a guide rail slider (108). Baffle mounting grooves are provided on opposite sides of the frame (1), a guide rail (107) is connected in the baffle mounting groove, a guide rail slider (108) is provided on the guide rail (107), and the second electric push rod (109) is electrically connected to the control cabinet (11).

7. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 1, characterized in that: The vibrating screen driving device comprises a vibrating screen transmission device (9) and a vibrating screen driving motor (10) arranged on the outer wall of the frame (1); the output end of the vibrating screen driving motor (10) is connected to the vibrating screen transmission device (9) through a vibrating screen conveyor belt, and the vibrating screen driving motor (10) is electrically connected to a control cabinet (11); The vibration screen transmission device (9) includes a vibration screen shaft (909), both ends of which are connected to a bearing seat (905) and an eccentric wheel (908), the vibration screen shaft (909) is connected to the frame (1) via the bearing seat (905), the eccentric wheel (908) is connected to one end of a rocking arm (904) via a bearing (907), the other end of the rocking arm (904) is connected to a connecting plate (901), and the connecting plate (90 1) One end away from the rocking arm (904) is connected to the vibrating screen (3), one end of the vibrating screen shaft (909) is connected to the balance block (906), the other end of the vibrating screen shaft (909) is connected to the pulley (902), the end of the vibrating screen shaft (909) close to the pulley (902) is also connected to the eccentric block (903), and the vibrating screen shaft (909) is connected to the vibrating screen drive motor (10) through the pulley (902) and the vibrating screen transmission belt.

8. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 5, characterized in that: The frame (1) is also connected to an augers bottom plate (7), a grain conveying augers (6) and a sundry conveying augers (8) through a connecting baffle. Both ends of the grain conveying augers (6) and the sundry conveying augers (8) are rotatably connected to the connecting baffle on the frame (1). One end of each of the grain conveying augers (6) and the sundry conveying augers (8) is connected to an augers transmission wheel. The augers transmission wheel is connected to an augers driving motor through a conveyor belt. The augers bottom plate (7) includes a bottom plate connecting plate. Two movable plate mounting grooves are provided on the bottom plate connecting plate. The movable plate mounting grooves are both connected by a second hinge. (701) is rotatably connected to a movable plate (703), and a plurality of micro vibrators (702) are provided at the bottom end of the auger base plate (7). The grain conveying auger (6) and the miscellaneous conveying auger (8) are respectively located at the movable plate (703) on the auger base plate (7). The bottom end of the movable plate (703) is also connected to a fourth electric push rod, and 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 canvas.

9. The low-loss self-cleaning device for a grain seed multiplication harvester according to claim 1, characterized in that: A material collecting box (114) is further provided at the bottom end of the inner wall of the frame (1), and both ends of one side of the material collecting box (114) are connected to a material collecting box bracket (113), and the material collecting box bracket (113) is connected to one end of a third electric push rod (112), and the other end of the third electric push rod (112) is fixedly connected to the frame (1), and the third electric push rod (112) is electrically connected to the control cabinet (11).

10. The low-loss self-cleaning device for a grain seed multiplication 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 end of the inner wall of the frame (1); 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) via a fan conveyor belt; and the control cabinet (11) is electrically connected to the fan drive motor (4).

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