Cleaning device of crop seed production harvester

Abstract

The utility model relates to a crop seed production harvester cleaning device which comprises a sliding rail accessory capable of sliding along a sliding rail. The base is mounted on the slide rail fitting, and a driving motor I is mounted at the bottom; one end of the flange is connected with the nozzle bracket and the other end is connected with an output shaft of the driving motor I; the nozzle support is driven by the driving motor I to rotate, a sliding groove I and a sliding groove II are formed in the nozzle support, and the steering engine support is arranged in the sliding groove I and can slide along the sliding groove I; the electric push rod is installed on the nozzle support, the push rod is connected with the steering engine support, and the electric push rod drives the steering engine support to slide along the sliding groove I; the steering engine is installed on the steering engine support, and an output shaft of the steering engine is connected with the nozzle mechanism through a connecting piece; the nozzle mechanism is connected with an air source; the control unit is connected with opening and closing of the driving motor I, the electric push rod, the steering engine and the pneumatic unit. The crop seed production harvester solves the technical problems that in the prior art, residues in the crop seed production harvester cannot be cleaned thoroughly, and seed production purity and quality are affected.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a cleaning device for a crop seed production and harvesting machine. Background Art

[0002] In modern agriculture, wheat, rice and other crop harvesters are important equipment for improving harvesting efficiency and reducing labor demand. However, there is currently no device on the market specifically designed to clean up the residues of crop harvesters after harvesting. Especially during the harvesting process of crop seed production, in order to avoid mixing between seeds, it is necessary to ensure that there is no residue inside the harvester. This requirement places higher cleaning standards on harvesting equipment to ensure the purity and quality of seeds.

[0003] Existing crop harvesting equipment mainly focuses on functions such as harvesting, threshing and cleaning, but often ignores the cleaning of internal residues after harvesting. These residues include stems, leaves, husks and seeds that are not completely threshed. If they are not cleaned in time, it is easy to cause the next batch of seeds to be contaminated, affecting the purity and quality of seed production. In addition, the long-term accumulation of residues inside the harvester may also cause equipment blockage, increased wear and tear, and reduced work efficiency.

[0004] At present, the method of cleaning the residue of the harvester mainly relies on manual operation, which is inefficient and incomplete, and cannot meet the high standards of crop seed production. Therefore, there is an urgent need for a device that can automatically, efficiently and thoroughly clean the residue inside the crop seed harvester to improve the quality control level of the seed production process, ensure the purity of the seeds and the long-term stable operation of the harvesting equipment. Utility Model Content

[0005] In view of the deficiencies existing in the related art, the present invention provides a cleaning device for a crop seed harvester to solve the problem of incomplete cleaning and low efficiency of the crop seed harvester.

[0006] In a possible embodiment, a cleaning device for a crop seed harvester is provided, comprising: a slide rail accessory, which is installed on the slide rail and can slide along the slide rail; a base, which is installed on the slide rail accessory and has a drive motor I installed at its bottom; a flange, one end of which passes through the base and is connected to a nozzle bracket, and the other end is connected to an output shaft of the drive motor I; the nozzle bracket rotates under the drive of the drive motor I, and a slide groove I and a slide groove II are provided on the nozzle bracket, and a steering gear bracket is placed in the slide groove I and can slide along the slide groove I; an electric push rod, which is installed on the nozzle bracket, and the push rod is connected to the steering gear bracket. ; The electric push rod drives the servo gear bracket to slide along the slide groove Ⅰ; the servo gear is installed on the servo gear bracket, and the output shaft of the servo gear is connected to the nozzle mechanism through a connecting piece, and the servo gear rotates to drive the connecting piece and the nozzle mechanism to rotate; the nozzle mechanism has a through opening inside, and the opening is connected to the air source through a pipeline, and a part of the pipeline is placed in the slide groove Ⅱ; the control unit is connected to the drive motor Ⅰ, the electric push rod, the servo gear and the air source switch through the action execution unit; the control unit is configured to control the rotation of the drive motor Ⅰ, drive the electric push rod to extend and retract, control the rotation of the servo gear and control the opening of the air source switch.

[0007] In a possible embodiment, a space is provided between the connecting piece and the nozzle holder to accommodate the nozzle mechanism.

[0008] In a possible implementation manner, the nozzle mechanism is hinged to the connecting member, and the rotation direction of the hinge is perpendicular to the rotation direction of the steering gear.

[0009] In a possible embodiment, it also includes a target detection unit, including a visual camera, configured to capture images of the interior of the harvester; an image processing component, configured to process the image acquired by the visual camera to determine whether there are any crop seed residues; the control unit is also configured to control the rotation of the drive motor I according to whether there are any crop seed residues determined, drive the electric push rod to extend and retract, control the rotation of the servo, and control the opening of the air source regulating valve.

[0010] In a possible implementation, a detection component is further included, including a flow meter for detecting the air flow output by the nozzle mechanism.

[0011] In a possible implementation, the pneumatic unit includes a pneumatic switch and an electric proportional control valve; the pneumatic switch is controlled by the control unit to be opened and closed, and the electric proportional control valve is controlled by the control unit to be opened to different degrees.

[0012] In one possible embodiment, the image processing component is configured to process the image acquired by the visual camera to determine whether there are crop seed residues and the amount of crop seed residues; the control unit is also configured to control the opening of the electric proportional control valve based on whether there are crop seed residues and the amount of crop seed residues, and the air flow rate output by the nozzle mechanism.

[0013] Based on the above technical scheme, the cleaning device of the crop seed harvester of the utility model includes slide rail accessories, a base, a flange, a nozzle bracket, a servo, an electric push rod and other components. The driving motor I drives the nozzle bracket to rotate through the flange, and the electric push rod drives the servo bracket to slide along the slide groove I. The rotation of the servo drives the nozzle mechanism to rotate. The nozzle mechanism is connected to the air source through the opening inside it, and the control unit controls the air source to spray crop residues, thereby realizing the cleaning of the inside of the crop seed harvester; the control unit can accurately control the actions of each execution unit, ensure the automation and accuracy of the cleaning process, and effectively improve the working efficiency and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 This is a schematic structural diagram of a crop seed production and harvesting machine cleaning device according to one embodiment of the present application;

[0016] Figure 2 for Figure 1 Stereoscopic image of

[0017] Figure 3 This is a schematic structural diagram of a cleaning device for a crop seed production and harvesting machine according to another embodiment of the present application;

[0018] Figure 4 This is a flowchart of the working process of the target detection unit / vision module of the crop seed harvester cleaning device according to one embodiment of the present application;

[0019] Figure 5 This is a flow chart of the working process of a cleaning device for a crop seed harvester according to one embodiment of the present application;

[0020] Figure 6 This is a schematic diagram of electrical connections of a crop seed production and harvesting machine cleaning device according to one embodiment of the present application;

[0021] Figure 7 This is a schematic diagram of the installation position of a cleaning device for a crop seed production and harvesting machine according to one embodiment of the present application;

[0022] Figure 8 is a bottom view of the base;

[0023] Fig. 9 This is a schematic diagram of the three-dimensional structure of a cleaning device for a crop seed production and harvesting machine according to an embodiment of the present application;

[0024] Fig.10It is a schematic diagram of the structure of the nozzle mechanism and the steering gear;

[0025] Fig.11 for Fig.10 Front view of.

[0026] In the figure:

[0027] 1. Slide rail accessories; 101. Slide rail; 2. Base; 21. Drive motor I; 3. Flange; 4. Nozzle bracket; 5. Electric push rod; 6. Servo bracket; 7. Servo; 8. Connector; 9. Nozzle mechanism; 10. Control unit; 41. Slide chute I; 42. Slide chute II; 13. Silo; 14. Conveying mechanism. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. 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 work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In order to solve the problem of incomplete and inefficient cleaning of crop seed harvesters, the present application provides a cleaning device for crop seed harvesters.

[0033] See also Figure 1 , Figure 2 and Figure 8-11 In a possible implementation, the crop seed harvester cleaning device includes: a slide rail accessory 1, which is installed on the slide rail 101 and can slide along the slide rail 101; a base 2, which is installed on the slide rail accessory 1, and a driving motor Ⅰ21 is installed at the bottom of the base 2; a flange 3, one end of which passes through the base 2 to connect to the nozzle bracket 4, and the other end is connected to the output shaft of the driving motor Ⅰ21; the nozzle bracket 4 rotates under the drive of the driving motor Ⅰ21, and the nozzle bracket 4 is provided with a slide groove Ⅰ41 and a slide groove Ⅱ42, and the steering gear bracket 6 is placed in the slide groove Ⅰ41 and can slide along the slide groove Ⅰ41; the electric push rod 5 is installed on the nozzle bracket 4, and the push rod is connected to the steering gear bracket 6. The electric push rod 5 drives the steering gear bracket 6 to slide along the slide groove Ⅰ41; the steering gear 7 is installed on the steering gear bracket 6, and the output shaft of the steering gear 7 is connected to the nozzle mechanism 9 through the connecting piece 8. The steering gear 7 rotates to drive the connecting piece 8 and the nozzle mechanism 9 to rotate; the nozzle mechanism 9 has a through opening inside, and the opening is connected to the air source through a pipeline, and a part of the pipeline is placed in the slide groove Ⅱ42; the control unit 10 connects the drive motor Ⅰ, the electric push rod 5, the steering gear 7 and the air source switch through the action execution unit; the control unit 10 is configured to control the rotation of the drive motor Ⅰ21, drive the electric push rod 5 to retract, control the rotation of the steering gear 7 and control the opening and closing of the pneumatic unit.

[0034] The cleaning device is designed to drive the flange 3 through the drive motor Ⅰ21, thereby driving the nozzle bracket 4 to rotate. A slide groove Ⅰ41 is set on the nozzle bracket 4, so that the electric push rod 5 drives the steering gear bracket 6 to move along the slide groove Ⅰ41, so as to flexibly adjust the position of the nozzle mechanism 9. The steering gear 7 further accurately controls the rotation of the nozzle mechanism 9 through the connecting piece 8 to achieve effective cleaning of crop seed residues. The control unit 10 coordinates the work of the drive motor Ⅰ, the electric push rod 5, the steering gear 7 and the air source switch to ensure the automation and efficiency of the entire cleaning process.

[0035] The design of the device achieves precise control of the position and angle of the nozzle mechanism 9 through the cooperation of a multi-stage motion mechanism, thereby improving the cleaning efficiency and cleaning effect. At the same time, the introduction of the automatic control unit 10 simplifies the operation process, reduces manual intervention, and improves the working efficiency and reliability of the cleaning device. In addition, the combination of the nozzle mechanism 9 and the air source makes the cleaning process more efficient and thorough, which helps to improve the overall performance of the crop seed harvester.

[0036] In a possible embodiment, there is a space between the connecting piece 8 and the nozzle support 4 for accommodating the nozzle mechanism 9 .

[0037] The spatial design between the connector 8 and the nozzle holder 4 in this embodiment ensures that the nozzle mechanism 9 is accommodated in the space between the connector 8 and the nozzle holder 4, thereby avoiding interference and damage to the device during harvesting operations.

[0038] In a possible implementation manner, the nozzle mechanism 9 is hinged to the connecting member 8 , and the rotation direction of the hinge is perpendicular to the rotation direction of the steering gear 7 .

[0039] This embodiment further improves the flexibility and cleaning range of the nozzle mechanism 9 by hingedly connecting the nozzle mechanism 9 to the connecting member 8 and making its rotation direction perpendicular to the rotation direction of the steering gear 7. The steering gear 7 rotates the connecting member 8 to achieve precise adjustment of the nozzle mechanism 9 in different directions, thereby more effectively cleaning the crop seed residues.

[0040] In the above solution, the nozzle mechanism 9 can clean in a wider range, improving the cleaning efficiency and effect. The vertical hinge design helps to avoid mechanical interference that may occur during the cleaning process, ensuring the smoothness and efficiency of the cleaning process. In addition, the hinge design also improves the applicability of the device, enabling it to cope with more complex cleaning tasks.

[0041] See also Figure 3 In a possible implementation, the crop seed harvester cleaning device further includes a target detection unit, which includes a visual camera configured to capture images inside the harvester; an image processing component configured to process the image acquired by the visual camera to determine whether there are crop seed residues; the control unit is further configured to control the rotation of the drive motor I according to the determination of whether there are crop seed residues, drive the electric push rod 5 to extend and retract, control the rotation of the servo 7, and control the opening of the electric proportional control valve.

[0042] This embodiment realizes automatic detection and identification of cleaning targets by introducing a target detection unit. The visual camera captures images inside the harvester and processes them through an image processing component to determine whether there are crop seed residues. Based on the detection results, the control unit automatically controls the actions of the drive motor I, the electric push rod 5 and the steering gear 7, as well as the opening and closing of the air source switch and the opening of the electric proportional control valve, to realize intelligent operation of the cleaning device.

[0043] The introduction of the target detection unit improves the automation and intelligence level of the cleaning device. By automatically detecting and identifying crop seed residues, more accurate and efficient cleaning operations can be achieved, reducing the possibility of manual intervention and misjudgment. In addition, the intelligent control unit can dynamically adjust the working status of each component according to actual cleaning needs to optimize the cleaning effect and efficiency.

[0044] In a possible implementation, the crop seed harvester cleaning device further includes a detection component, and the detection component includes a flow meter for detecting the airflow output by the nozzle mechanism.

[0045] This embodiment monitors the airflow outputted by the nozzle mechanism in real time by introducing a flow meter in the detection assembly. The control unit dynamically adjusts the opening of the electric proportional control valve according to the detection data of the flow meter to ensure that the airflow during the cleaning process meets the cleaning requirements and optimizes the cleaning effect.

[0046] The introduction of flowmeter improves the precise control capability of the cleaning device. By real-time monitoring of airflow, it can ensure that the nozzle mechanism works under the best airflow conditions, improving the cleaning effect and efficiency. At the same time, flow monitoring data can also be used for diagnosis and maintenance, timely discovering and solving airflow abnormalities, and ensuring the stable operation of the device.

[0047] In the above scheme, the flow meter can use sensors of different types and precisions, such as thermal flow meters, vortex flow meters, etc., to meet different airflow detection requirements. The installation position and method of the flow meter can also be adjusted according to the design of the nozzle mechanism and the air source pipeline to achieve the best detection effect. The detection component can also be expanded with other sensors, such as pressure sensors, temperature sensors, etc., to provide more real-time monitoring data and optimize the cleaning process.

[0048] In a possible implementation, the pneumatic unit includes a pneumatic switch and an electric proportional control valve; the pneumatic switch is controlled by the control unit to be opened and closed, and the electric proportional control valve is controlled by the control unit to be opened to different degrees.

[0049] This embodiment realizes precise control of the air flow by designing the air source regulating valve as an electric proportional regulating valve. The control unit dynamically adjusts the air flow output of the nozzle mechanism by adjusting the opening of the electric proportional regulating valve to meet the air flow requirements under different cleaning conditions.

[0050] The introduction of the electric proportional control valve improves the accuracy and response speed of airflow control. By accurately adjusting the airflow, more efficient and accurate cleaning operations can be achieved, reducing airflow waste and optimizing cleaning effects. In addition, the automatic control of the electric proportional control valve simplifies the operating process and improves the intelligence and reliability of the cleaning device.

[0051] In the above scheme, the electric proportional control valve can adopt different specifications and models to adapt to different airflow control requirements. The control algorithm and strategy of the control unit can also be optimized and adjusted according to the actual cleaning requirements to improve the cleaning effect and efficiency. The air source regulation system can also add a pressure regulating device or a filter to further optimize the airflow quality and cleaning effect.

[0052] In one possible embodiment, the image processing component is configured to process the image acquired by the visual camera to determine whether there are crop seed residues and the amount of crop seed residues; the control unit is also configured to control the opening of the electric proportional control valve according to whether there are crop seed residues and the amount of crop seed residues, and the air flow rate output by the nozzle mechanism.

[0053] This embodiment configures the image processing component so that it can not only detect whether there are crop seed residues, but also determine the amount of residues. The control unit dynamically adjusts the opening of the electric proportional control valve according to the image processing results and the detection data of the flow meter to ensure that the air flow output by the nozzle mechanism is always in the best state under different residue amounts.

[0054] This configuration enables the cleaning device to deal with different levels of crop seed residues more accurately and efficiently, improving the cleaning effect and efficiency. By adjusting the airflow in real time, it can avoid over-cleaning or under-cleaning, optimize airflow utilization, and reduce energy consumption. In addition, this intelligent control strategy simplifies the operating process and improves the automation level and reliability of the cleaning device.

[0055] In the above scheme, the algorithm of the image processing component can be optimized and adjusted according to the specific detection requirements to improve the detection accuracy and speed. The control strategy and parameter settings of the control unit can also be customized according to different cleaning goals and conditions to achieve the best cleaning effect. The type and specification of the electric proportional control valve can be selected according to actual needs to adapt to different airflow control requirements.

[0056] The cleaning device of a crop seed harvester according to an embodiment of the utility model is described as follows:

[0057] The main structure of the device is as follows Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.10 , Fig.11As shown, the device base 2 is installed on the slide rail accessory 1. The slide rail accessory has six openings, four of which are used to fix the device base 2, and the two middle holes are used to fix the slide rail accessory 1 on the slide rail 101. The slide rail accessory 1 allows the device to adjust the initial installation position. A motor / drive motor I / base rotating motor is installed inside. There is a hole reserved for the motor shaft in the middle of the device base 2. When installing, the motor shaft extends out, and the motor D axis is connected to the flange 3 using a tightening screw. The flange is provided with four holes for connecting with the nozzle bracket 4. When the base rotating motor / drive motor I rotates, the nozzle bracket 4 is driven to rotate through the flange 3. A slide groove is provided on both sides of the nozzle bracket, namely the slide groove I41, and the steering gear bracket 6 is installed in the slide groove I41 to facilitate forward and backward telescopic movement. An electric push rod mounting ear is provided at the bottom of the steering gear bracket 6 to facilitate the installation of the electric push rod 5 below the steering gear bracket 6. A mounting ear is also provided at the bottom end of the nozzle bracket 4 to fix the electric push rod 5. The electric push rod 5 telescopes and drives the steering gear bracket 6 to move to adjust the position of the entire nozzle mechanism 9. There are two steering gear mounting holes in the middle of the steering gear bracket for mounting the steering gear 7, namely Figure 3 The output shaft of the angle adjustment servo / servo 7 is connected to the nozzle mechanism 9 through a connector 8. The rotation of the angle adjustment servo / servo 7 drives the nozzle mechanism 9 to rotate through the connector 8. The rear end of the nozzle mechanism 9 is a semicircle with an opening for connecting the air pipe to provide air input. The middle part is an extension pipe so that the nozzle can be closer to the residue.

[0058] Multiple devices can be deployed inside the harvester to avoid cleaning dead corners. Taking the silo 13 as an example, the device layout is shown in the attached figure. Figure 7 The devices are arranged on both sides of the conveying mechanism 14 and arranged symmetrically, referring to Figure 7 The cleaning device of the utility model can be installed at positions ①, ②, ③ and ④ in the silo. In actual use, the installation position can be adjusted according to the needs of the site. Installing the cleaning device slightly in front of both sides of the conveying mechanism can avoid cleaning dead corners, and can take into account the cleaning of the left and right sides, as well as the cleaning of the conveying mechanism groove, to avoid residues in the groove after the conveying is completed.

[0059] Object detection unit / vision part:

[0060] 1. Obtain a target detection image dataset, which is divided into a training set and a validation set at a ratio of 9:1. A single data image should be mainly composed of residues, including but not limited to crop seeds, straw, debris, etc., and the background should be the location where the crop seed harvester is likely to store seeds, including but not limited to the silo and discharge port.

[0061] 2. Establish a target detection model framework, which adopts the C2f backbone structure and YOLOv8 of the SPPF module.

[0062] 3. Use the training set to train the target detection model framework, and use the validation set to test the trained target detection framework to verify the performance.

[0063] The target detection unit / visual part includes a visual camera / camera and an image processing component. The visual camera is used to collect internal images of the crop seed harvester and send the captured photos to the image processing component. Before image processing, the model that has been trained and achieved accuracy needs to be deployed to the image processing component. The image processing component receives the photos sent by the visual camera and processes the image based on the target detection model to determine whether there are residues in the image. If the location of crop seeds, residues, etc. is marked in the image, the location information is sent to the main controller for processing.

[0064] The working process of the target detection unit / vision module is as follows Figure 4 .

[0065] Control part:

[0066] The control part includes the main controller and the detection component. The main controller is used to process the information of the target detection unit / visual part and the detection component, and send signals to the actuator. The detection component is used to collect feedback signals and confirm the working status of the system.

[0067] See also Figure 5, when the system is started, the main controller waits for the target detection unit / visual part to send the residue position information to the main controller. After receiving the position information, the main controller processes the position information according to the set algorithm. First, the position information should contain the X-axis and Y-axis coordinates. The coordinate information of each point is sorted according to the size of the X-axis coordinate. After the sorting is completed, it is divided into four quadrants. The four cleaning devices are responsible for cleaning the residue in one quadrant respectively, and then the actuator is controlled in ascending order to align with the residue. The main controller first drives the base motor to rotate, adjusts the angle of the overall nozzle mechanism, collects data through the encoder of the motor for feedback, and confirms the current angle of the nozzle mechanism. Then the main controller sends a pulse to the electric push rod to adjust the extension length of the nozzle mechanism to approach the residue. Then the main controller sends a PWM pulse to control the angle of the servo, and fine-tunes the angle of the nozzle mechanism so that the nozzle mechanism is aligned with the residue at the best angle. After the nozzle mechanism is adjusted, the main controller outputs a signal, drives the relay through the GPIO port, and the relay drives the solenoid valve. The air path is connected, and the airflow sprays the residue out of the harvester. In addition, the device can adjust the airflow size according to the amount of residue, determine the amount of residue through the visual camera, send the information to the main controller, the main controller outputs a voltage signal, adjusts the valve opening, and collects the working flow through the flow meter and feeds it back to the main controller, which adjusts and controls it. After the cleaning work is completed, the steering gear is driven to rotate, so that the nozzle mechanism rotates backward and is in a folded state to avoid damage when the harvester is working.

[0068] As an embodiment, the electrical connection of the crop seed harvester cleaning device is as follows: Figure 6 As shown. The control unit adopts STM32F407VET6 chip, and the visual camera uses the embedded computing module JastonNano for image processing / analysis after taking pictures. According to whether there are crop residues or the amount of crop residues determined by the visual camera through image processing and analysis, combined with the air flow detected by the flow meter, the steering gear 7 is controlled to rotate, the electric push rod is controlled to extend and retract, and the motor / servo motor is controlled to rotate. The electromagnetic valve is controlled to connect the air source through the relay, and the opening of the electric proportional control valve is adjusted to adjust the air flow size of the air source.

[0069] The cleaning device of the crop seed production and harvesting machine of the utility model has the following beneficial effects:

[0070] 1. The device is installed inside the harvester. When the harvester is harvesting, the cleaning device does not work. In order to prevent the cleaning device from affecting the harvesting operation, the nozzle mechanism of the device is designed to be rotatable and a storage function is added. The nozzle mechanism is folded and stored in the space between the connecting piece and the nozzle bracket. While increasing the degree of freedom to make cleaning residues more accurate and movement more efficient, the nozzle mechanism can be folded when the harvester is harvesting, avoiding affecting the harvesting operation and protecting the nozzle mechanism from damage.

[0071] 2. This solution designs a nozzle mechanism with a movable platform. The platform is driven by an electric push rod. The adjustable distance nozzle mechanism can adjust the front and rear distance, which can avoid the problem that distant residues cannot be cleaned up due to a single-length nozzle mechanism, or simply lengthening the nozzle mechanism to create a dead angle, resulting in the inability to clean nearby residues.

[0072] 3. This solution introduces target detection, and uses a visual camera to take photos to identify the location of the residue. The location information of the residue is sent to the controller. The controller drives the execution part, and the actuator moves and adjusts directly according to the location information of the target detection, which greatly improves the cleaning efficiency, avoids invalid movement and rotation, and saves cleaning time.

[0073] 4. The installation design of this solution is adjustable. Through the slide rail accessories, the initial installation position of the entire device can be adjusted, and in conjunction with the electric push rod, the device can be adjusted in two degrees of freedom on the X-axis and Y-axis, greatly improving the versatility and ease of use of the device.

[0074] 5. This solution can automatically adjust the airflow size according to the amount of residue collected visually, making the device more energy-efficient.

[0075] 6. The device can be installed in a distributed manner inside the harvester to improve cleaning efficiency and avoid cleaning dead corners.

[0076] 7. The base of the device is designed to be adjustable, and can be used with the electric push rod to achieve movement with two degrees of freedom on the X-axis and Y-axis.

[0077] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A cleaning device for a crop seed harvester, characterized in that: include: A slide rail accessory (1) is mounted on the slide rail (101) and can slide along the slide rail (101); A base (2) is mounted on the slide rail accessory (1), and a driving motor I (21) is mounted on the bottom of the base; A flange (3), one end of which passes through the base (2) and is connected to the nozzle bracket (4), and the other end of which is connected to the output shaft of the driving motor I (21); The nozzle bracket (4) rotates under the drive of the driving motor I. The nozzle bracket (4) is provided with a slide groove I (41) and a slide groove II (42). The steering gear bracket (6) is placed in the slide groove I (41) and can slide along the slide groove I (41). An electric push rod (5) is mounted on the nozzle bracket (4), and the push rod is connected to the steering gear bracket (6); the electric push rod (5) drives the steering gear bracket (6) to slide along the slide groove I (41); A steering gear (7) is mounted on the steering gear bracket (6); an output shaft of the steering gear (7) is connected to the nozzle mechanism (9) via a connecting piece (8); the steering gear (7) rotates to drive the connecting piece (8) and the nozzle mechanism (9) to rotate; The nozzle mechanism (9) has a through opening inside, the opening is connected to the gas source through a pipeline, and a part of the pipeline is placed in the slide groove II (42); The control unit (10) is connected to the drive motor I (21), the electric push rod (5), the steering gear (7) and the pneumatic unit through the action execution unit; the control unit (10) is configured to control the rotation of the drive motor I (21), drive the electric push rod (5) to extend and retract, control the rotation of the steering gear (7) and control the opening and closing of the pneumatic unit.

2. The crop seed production and harvesting machine cleaning device according to claim 1, characterized in that: A space is provided between the connecting piece (8) and the nozzle support (4) for accommodating the nozzle mechanism (9).

3. The crop seed production and harvesting machine cleaning device according to claim 2, characterized in that: The nozzle mechanism (9) is hinged to the connecting member (8), and the rotation direction of the hinge is perpendicular to the rotation direction of the steering gear (7).

4. The crop seed production and harvesting machine cleaning device according to claim 3, characterized in that: Also includes: The target detection unit includes: a visual camera configured to capture images of the interior of the harvester; an image processing component configured to process the images acquired by the visual camera to determine whether there are crop seed residues; The control unit is also configured to control the rotation of the drive motor I (21) according to whether there are crop seed residues, drive the electric push rod (5) to extend and retract, control the rotation of the steering gear (7) and control the opening and closing of the pneumatic unit.

5. The crop seed production and harvesting machine cleaning device according to claim 4, characterized in that: Also includes: The detection component includes: a flow meter for detecting the air flow output by the nozzle mechanism.

6. The crop seed production and harvesting machine cleaning device according to claim 5, characterized in that: The pneumatic unit includes a pneumatic switch and an electric proportional control valve; the pneumatic switch is controlled by the control unit to open and close, and the electric proportional control valve is controlled by the control unit to open different openings.

7. The crop seed production and harvesting machine cleaning device according to claim 6, characterized in that: An image processing component is configured to process the image acquired by the visual camera to determine whether there are crop seed residues and the amount of crop seed residues; The control unit is also configured to control the opening of the electric proportional control valve according to whether there are crop seed residues and the amount of crop seed residues, and the air flow rate output by the nozzle mechanism.

Images