Calibration system, method and equipment for grain unloading barrel of rice machine

Abstract

The invention relates to a rice machine grain unloading barrel calibration system, method and equipment, and relates to the technical field of agricultural machinery, the system comprises a driving mechanism connected with a grain unloading barrel, and further comprises an angle sensing assembly, a baffle detection assembly and a controller, the angle sensing assembly is arranged on one side of a rotating shaft of the grain unloading barrel, and the baffle detection assembly is arranged on the other side of the rotating shaft; the baffle detection assemblies are arranged on the two sides of a return support of the grain unloading barrel. The controller is used for acquiring height inclination angle information and baffle detection information of the grain unloading barrel in real time and calculating a deviation angle between the grain unloading barrel and a preset standard position on the basis of the height inclination angle information and the baffle detection information, and the deviation angle represents the angular deviation of the grain unloading barrel in the current position relative to the preset standard position in the space; and based on the deviation angle of the grain unloading cylinder, the compensation angle of the grain unloading cylinder is determined, and a driving mechanism is controlled to drive the grain unloading cylinder to rotate and adjust according to the compensation angle, so that the grain unloading cylinder reaches a preset standard position. The grain unloading device has the effect of accurately controlling the grain unloading barrel to return to the position above the grain unloading barrel support.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a rice machine unloading drum calibration system, method and equipment. Background Art

[0002] With the significant increase in agricultural mechanization, rice harvesters have been widely used, which have improved harvesting efficiency and reduced labor intensity to a certain extent. Rice harvesters can complete a series of operations such as harvesting, threshing, cleaning, collecting and unloading crops.

[0003] During the rice harvesting process, after the harvester completes harvesting and sorting the crops, unloading operations are required when the grain bin is full. Due to the small size of the harvester's bin, unloading operations are frequent. In the past, after unloading, the driver would directly return the unloading drum to its original position with a single button, and simultaneously begin harvesting during the return process to improve harvesting efficiency. The most common method of operating the unloading drum is to manually control the return button to return the drum to the preset position. For some unloading drums equipped with simple positioning devices, returning the drum to its original position is also based on more basic positioning information.

[0004] However, due to technical interference with the motor encoder's operating accuracy during rotation, errors can occur when the unloading drum returns to its original position. When these errors accumulate to a certain angle, the unloading drum cannot accurately return to its original position above the unloading drum bracket, and may even damage other components, seriously affecting the normal use and operating efficiency of the rice harvester. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a rice machine unloading drum calibration system, method and equipment, aiming to solve at least one of the above technical problems.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: In a first aspect, the present application provides a rice machine unloading drum calibration system, which adopts the following technical solutions: A rice harvester grain unloading drum calibration system includes a drive mechanism connected to the grain unloading drum, an angle sensing assembly, a baffle detection assembly, and a controller. The angle sensing assembly is arranged on one side of the grain unloading drum's rotating shaft, and the baffle detection assembly is arranged on both sides of the grain unloading drum's return bracket. The drive mechanism, the angle sensing assembly, and the baffle detection assembly are all connected to the controller. The driving mechanism is used to drive the grain unloading drum to perform horizontal rotation and vertical lifting movements; The angle sensing component is used to detect the height inclination information of the grain unloading drum in real time and send the height inclination information to the controller, wherein the height inclination information represents the rotation angle of the grain unloading drum relative to the initial position in the vertical direction; The baffle detection component is used to detect the baffle detection information of the grain unloading drum in real time during the movement, and the baffle detection information represents the positional relationship between the grain unloading drum and the baffle of the return bracket; The controller is used to obtain the height and inclination information and baffle detection information of the grain unloading drum in real time, and calculate the offset angle of the grain unloading drum from the preset standard position based on the height and inclination information and the baffle detection information, wherein the offset angle represents the spatial angular deviation of the grain unloading drum at the current position relative to the preset standard position; based on the offset angle of the grain unloading drum, the compensation angle of the grain unloading drum is determined, and the driving mechanism is controlled to drive the grain unloading drum to rotate and adjust according to the compensation angle so that the grain unloading drum reaches the preset standard position.

[0007] The beneficial effects of the present invention are as follows: the grain unloading drum can be driven to rotate horizontally and lift vertically through the driving mechanism, the angle sensing component can detect the height inclination information of the grain unloading drum in real time and send it to the controller, the baffle detection component can detect the positional relationship between the grain unloading drum and the return bracket baffle in real time, and after obtaining this information, the controller calculates the offset angle between the grain unloading drum and the preset standard position, and then determines the compensation angle, and controls the driving mechanism to drive the grain unloading drum to rotate and adjust according to the compensation angle, thereby ensuring the return accuracy of the grain unloading drum and preventing it from deviating from the bracket, and does not require high rotation accuracy of the motor, and can set reasonable compensation values ​​for motors with different precisions, with high cost performance and practicality, small changes in the scheme, simple design and implementation, and easy to promote.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the baffle detection assembly includes baffle trigger switches symmetrically arranged on the baffles on both sides of the return bracket, so that the baffle trigger switches are symmetrically distributed along the symmetry axis of the top of the return bracket.

[0010] The beneficial effect of adopting the above-mentioned further scheme is: in the rice machine unloading drum calibration system, the baffle trigger switch is symmetrically set on the baffles on both sides of the return bracket and symmetrically distributed along the symmetry axis of the top of the return bracket, which can accurately and in real time detect the position relationship between the unloading drum and the return bracket baffle during movement, and provide the controller with accurate baffle detection information.

[0011] Furthermore, the driving mechanism includes a grain unloading drum lifting assembly, a rotating gear meshed with the horizontal rotating shaft of the grain unloading drum, and a grain unloading drum rotating motor coaxially connected to the rotating gear, and the grain unloading drum rotating motor is integrated with a motor encoder; The grain unloading drum up and down lifting assembly is used to drive the grain unloading drum to perform vertical lifting movements; The grain unloading drum rotating motor is used to drive the rotating gear to rotate; The rotating gear is used to transmit the rotating power generated by the grain unloading drum rotating motor to the grain unloading drum, so that the grain unloading drum can rotate in the horizontal direction.

[0012] The beneficial effect of adopting the above-mentioned further scheme is: the grain unloading barrel is driven to perform vertical lifting and lowering movements through the upper and lower lifting components of the grain unloading barrel, the grain unloading barrel rotating motor can drive the rotating gear to rotate, and the rotating gear transmits power to the grain unloading barrel to make it perform horizontal rotation movement. The motor encoder feeds back the rotation position, thereby cooperating with the controller to realize the horizontal rotation and vertical lifting movements of the grain unloading barrel, providing power support for the calibration of the grain unloading barrel.

[0013] Furthermore, it also includes a touch screen and a control handle, and the touch screen and the control handle are both connected to the controller; The touch screen display is used to configure the automatic calibration function and set the offset angle threshold; The control handle is used to respond to the user's triggering action for moving the grain unloading drum, obtain a trigger signal, and enable the controller to control the grain unloading drum to move from the bracket position to the grain unloading operation position based on the trigger signal.

[0014] The beneficial effects of adopting the above-mentioned further scheme are: the touch display screen can be configured with automatic calibration function and set offset angle threshold, which is convenient for user operation and adjustment of parameters according to actual conditions; the control handle can respond to the grain unloading barrel movement trigger action to obtain the trigger signal, so that the controller controls the grain unloading barrel to move from the bracket position to the grain unloading operation position, making it convenient for users to control the position movement of the grain unloading barrel and improving the convenience and flexibility of system operation.

[0015] Furthermore, the controller is used to calculate the offset angle of the grain unloading drum from the preset standard position based on the height inclination information and the baffle detection information, specifically to: Based on the baffle detection information, determining whether the grain unloading drum is in contact with the baffle on either side of the return bracket; If the grain unloading drum contacts the baffle on either side of the return bracket, the height of the grain unloading drum is calculated based on the height inclination information; Calculating an offset distance of the grain unloading drum based on the height of the grain unloading drum and the height inclination information; Based on the offset distance of the grain unloading drum, the offset angle of the grain unloading drum from a preset standard position is calculated.

[0016] The beneficial effect of adopting the above-mentioned further scheme is: using the height inclination information and baffle detection information, first determine the contact situation between the grain unloading barrel and the return bracket baffle. If the grain unloading barrel contacts the baffle on either side of the return bracket, then calculate the height of the grain unloading barrel, and then calculate the offset distance based on the height and height inclination information. Finally, calculate the offset angle from the preset standard position, which can accurately determine the position deviation of the grain unloading barrel and provide an accurate basis for subsequent compensation adjustments.

[0017] Furthermore, the controller is used to determine the compensation angle of the grain unloading drum based on the offset angle of the grain unloading drum, specifically to: Determining whether the offset angle of the grain unloading drum is greater than a set offset angle threshold; If the offset angle is greater than a set offset angle threshold, the offset angle is determined to be the compensation angle of the grain unloading drum.

[0018] The beneficial effect of adopting the above-mentioned further scheme is: the controller determines that the offset angle of the grain unloading barrel is greater than the set offset angle threshold, and determines the offset angle as the compensation angle, so as to accurately determine the angle that the grain unloading barrel needs to be compensated, and ensure that the grain unloading barrel is compensated and adjusted in time when the offset angle exceeds the set threshold, so that the grain unloading barrel accurately returns to the preset standard position, improves the accuracy of the grain unloading barrel's return, avoids the problem that the grain unloading barrel cannot return to the top of the return bracket or damages other components due to inaccurate return, and ensures the normal progress of the grain unloading operation.

[0019] Furthermore, the controller, before being used to obtain the height and inclination information of the grain unloading drum and the baffle detection information in real time, is also used to: Determining whether the engine speed of the rice harvester is greater than a set engine speed threshold, or determining whether the battery voltage of the rice harvester is greater than a set voltage threshold, and determining whether the functions of the angle sensor component and the motor encoder are normal, and determining whether the automatic calibration function of the grain unloading drum of the touch screen display is activated; If the engine speed of the rice machine is greater than the set engine speed threshold, or the battery voltage of the rice machine is greater than the set voltage threshold, and the angle sensing component and the motor encoder function normally, and the grain unloading barrel automatic calibration function of the touch display screen is started, the height inclination angle information and the baffle detection information of the grain unloading barrel are obtained in real time, and based on the height inclination angle information and the baffle detection information, the offset angle of the grain unloading barrel from the preset standard position is calculated, and based on the offset angle of the grain unloading barrel, the compensation angle of the grain unloading barrel is determined, and the driving mechanism is controlled to drive the grain unloading barrel to rotate and adjust according to the compensation angle.

[0020] The beneficial effect of adopting the above-mentioned further scheme is: before obtaining the relevant information of the grain unloading drum in real time, the rice machine engine speed, battery voltage, angle sensor component and motor encoder function and the grain unloading drum automatic calibration function of the touch display screen are judged. Only when the corresponding conditions are met will the subsequent grain unloading drum offset angle calculation, compensation angle determination and rotation adjustment operations be performed to ensure that the calibration system operates in a suitable working state and avoid invalid or erroneous calibration operations.

[0021] Furthermore, the controller, before being used to obtain the height and inclination information of the grain unloading drum and the baffle detection information in real time, is also used to: In response to a user's triggering action for manual calibration of the grain unloading drum, a manual calibration signal is acquired, and based on the manual calibration signal, the grain unloading drum is calibrated in the bracket; Controlling the driving mechanism to drive the grain unloading drum to rise to the highest position of the grain unloading drum, and after the grain unloading drum rises to the highest position of the grain unloading drum, controlling the driving mechanism to drive the grain unloading drum to rotate horizontally, and using the minimum resolution during the horizontal rotation of the grain unloading drum as the calibration resolution; The calibration resolution is sent to the touch screen display, so that the touch screen display displays calibration completion information.

[0022] The beneficial effect of adopting the above further scheme is: the controller automatically determines and adjusts the calibration resolution. After the handle calibrates the position of the grain unloading barrel, the grain unloading barrel rises to the highest point and then rotates left and right. The minimum resolution for stable left and right rotation is analyzed and calculated, and the calibration is completed when the screen is displayed. This action is completed along with the manual calibration of the grain unloading barrel, thereby improving the return accuracy of the grain unloading barrel.

[0023] In a second aspect, the present application provides a method for calibrating a rice machine unloading drum, which adopts the following technical solution: A method for calibrating a rice machine unloading drum, comprising: Real-time acquisition of height and inclination information of the grain unloading drum and baffle detection information, wherein the height and inclination information represents the rotation angle of the grain unloading drum relative to the initial position in the vertical direction, and the baffle detection information represents the positional relationship between the grain unloading drum and the baffle of the return bracket; Based on the height inclination information and the baffle detection information, calculating the offset angle of the grain unloading drum from the preset standard position, the offset angle representing the angular deviation of the grain unloading drum at the current position relative to the preset standard position in space; Based on the offset angle of the grain unloading drum, the compensation angle of the grain unloading drum is determined, and the driving mechanism of the grain unloading drum is controlled to drive the grain unloading drum to rotate and adjust according to the compensation angle, so that the grain unloading drum reaches a preset standard position.

[0024] In a third aspect, the present application provides an electronic device, which adopts the following technical solution: An electronic device comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes the method for calibrating a rice machine unloading drum according to the second aspect.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a rice machine unloading drum calibration system provided by one embodiment of the present invention; Figure 2 A schematic diagram showing the positions of a grain unloading drum and a return bracket provided in accordance with an embodiment of the present invention; Figure 3 A schematic flow chart of a method for calibrating a rice machine unloading drum according to an embodiment of the present invention; Figure 4 The present invention provides a schematic structural diagram of an electronic device according to an embodiment of the present invention.

[0027] Figure markings: 1. Rotating gear; 2. Grain unloading drum rotating motor; 3. Grain unloading drum; 4. Controller; 5. Control handle; 6. Grain unloading drum up and down lifting assembly; 7. Angle sensor assembly; 8. Touch screen; 9. Baffle detection assembly; 10. Both sides of the return bracket. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates an "or" relationship between the related objects.

[0030] like Figure 1As shown, a rice harvester grain discharge drum calibration system includes a drive mechanism connected to the grain discharge drum 3, an angle sensing assembly 7, a baffle detection assembly 9, and a controller 4. The angle sensing assembly 7 is disposed on one side of the rotation axis of the grain discharge drum 3, and the baffle detection assembly 9 is disposed on both sides 10 of the return bracket of the grain discharge drum 3. The drive mechanism, the angle sensing assembly 7, and the baffle detection assembly 9 are all connected to the controller 4. Through the coordinated operation of these components, relevant information about the grain discharge drum 3 can be acquired and analyzed in real time, achieving the effect of accurately detecting position deviations of the grain discharge drum 3 and performing calibration.

[0031] The driving mechanism is used to drive the grain unloading drum 3 to perform horizontal rotation and vertical lifting; Angle sensor assembly 7, used for real-time detection of the height inclination information of the grain unloading drum 3, and sending the height inclination information to the controller 4, wherein the height inclination information represents the rotation angle of the grain unloading drum 3 in the vertical direction relative to the initial position; The baffle detection component 9 is used to detect the baffle detection information of the grain unloading drum 3 in real time during the movement process, and the baffle detection information represents the positional relationship between the grain unloading drum 3 and the baffle of the return bracket; The controller 4 is used to obtain the height and inclination information and baffle detection information of the grain unloading barrel 3 in real time, and calculate the offset angle of the grain unloading barrel 3 from the preset standard position based on the height and inclination information and the baffle detection information. The offset angle represents the spatial angular deviation of the grain unloading barrel 3 at the current position relative to the preset standard position; based on the offset angle of the grain unloading barrel 3, the compensation angle of the grain unloading barrel 3 is determined, and the driving mechanism is controlled to drive the grain unloading barrel 3 to rotate and adjust according to the compensation angle so that the grain unloading barrel 3 reaches the preset standard position.

[0032] In the embodiment of the present application, the driving mechanism includes an upper and lower lifting assembly 6 for the grain unloading drum, a rotating gear 1 meshed with the horizontal rotating shaft of the grain unloading drum 3, and a grain unloading drum rotating motor 2 coaxially connected to the rotating gear 1, and the grain unloading drum rotating motor 2 is integrated with a motor encoder.

[0033] The grain unloading drum lifting assembly 6 is used to drive the grain unloading drum 3 to perform vertical lifting movements; The grain unloading drum rotating motor 2 is used to drive the rotating gear 1 to rotate; The rotating gear 1 is used to transmit the rotational power generated by the grain unloading drum rotating motor 2 to the grain unloading drum 3, so that the grain unloading drum 3 can rotate in the horizontal direction.

[0034] The grain drum lifting assembly 6 can be a hydraulic lifting device that achieves vertical lifting of the grain drum 3 through changes in hydraulic oil pressure, or it can be an electric screw lifting mechanism that drives the grain drum 3 up and down through the motor-driven screw. The motor encoder provides real-time feedback of the motor's rotational position information and sends it to the controller 4. The grain drum 3 lifting assembly is firmly connected to the grain drum 3 via a connector. The rotating gear 1 is tightly engaged with the horizontal rotating shaft of the grain drum 3. The grain drum rotating motor 2 is coaxially connected to the rotating gear 1 via a coupling, ensuring effective power transmission, allowing the drive mechanism to flexibly drive the grain drum 3 to perform horizontal rotation and vertical lifting movements.

[0035] The angle sensing assembly 7 includes a plurality of angle sensors arranged near the rotation axis of the grain unloading drum 3. The angle sensor is fixed to one side of the rotation axis of the grain unloading drum 3 through a mounting bracket, and can detect the height inclination information of the grain unloading drum 3 in real time and send the information to the controller 4.

[0036] The baffle detection assembly 9 includes baffle trigger switches symmetrically positioned on baffles 10 on either side of the return bracket. These switches can be microswitches, which generate an electrical signal when the grain unloading drum 3 contacts the baffles, or proximity switches, which generate a signal by detecting the proximity of the grain unloading drum 3 to the baffles. The baffle trigger switches are symmetrically positioned along the axis of symmetry at the top of the return bracket, enabling accurate detection of baffle information during movement of the grain unloading drum 3, specifically the positional relationship between the grain unloading drum 3 and the return bracket's baffles.

[0037] In an embodiment of the present application, the rice machine grain unloading drum calibration system also includes a touch screen display 8 and a control handle 5, both of which are connected to the controller 4; the touch screen display 8 is used to configure the automatic calibration function and set the offset angle threshold; the control handle 5 is used to respond to the user's trigger action for moving the grain unloading drum 3, obtain a trigger signal, and enable the controller 4 to control the grain unloading drum 3 to move from the bracket position to the grain unloading operation position based on the trigger signal.

[0038] The touch display screen 8 can be configured with an automatic calibration function and a set offset angle threshold, which is convenient for user operation and adjustment of parameters according to actual conditions; the control handle 5 can respond to the movement trigger action of the grain unloading barrel 3 to obtain a trigger signal, so that the controller 4 controls the grain unloading barrel 3 to move from the bracket position to the grain unloading operation position, making it convenient for users to control the position movement of the grain unloading barrel 3 and improving the convenience and flexibility of system operation.

[0039] Optional, such as Figure 2 As shown, the controller 4 is used to calculate the offset angle of the grain unloading drum 3 from the preset standard position based on the height inclination information and the baffle detection information, specifically for: Based on the baffle detection information, determine whether the grain unloading drum 3 is in contact with the baffle on either side of the return bracket; If the grain unloading drum 3 contacts the baffle on either side of the return bracket, the height of the grain unloading drum 3 is calculated based on the height inclination information; Calculating the offset distance of the grain unloading drum 3 based on the height of the grain unloading drum 3 and the height inclination information; Based on the offset distance of the grain unloading drum 3 , the offset angle of the grain unloading drum 3 from the preset standard position is calculated.

[0040] In the embodiment of the present application, the controller 4 is configured to determine the compensation angle of the grain unloading drum 3 based on the offset angle of the grain unloading drum 3, specifically to: Determine whether the offset angle of the grain unloading drum 3 is greater than a set offset angle threshold; If the offset angle is greater than the set offset angle threshold, the offset angle is determined to be the compensation angle of the grain unloading drum 3 .

[0041] When the grain unloading drum 3 completes its unloading operation and begins to return to its original position within the bracket, the vertical angle sensor measures the angle θ of the grain unloading drum 3 relative to the horizontal plane in real time and continuously transmits the measurement data to the controller 4. During the falling process of the grain unloading drum 3, if its left and right positioning is not accurate, it may hit the baffle on one side of the bracket. When the grain unloading drum 3 hits the baffle, it presses on the baffle. The baffle sensor detects this pressing signal and immediately transmits the signal to the controller 4.

[0042] After receiving the real-time angle θ transmitted by the upper and lower angle sensors, the controller 4 calculates the height AC of the grain unloading drum 3 based on the known horizontal projection length L of the grain unloading drum 3. Then, the offset distance A'E' of the grain unloading drum 3 is calculated according to the preset distance formula. The preset distance formula is: A'E'=tan(θ1)×AC= tan(θ1)×tanθ×L; After that, the required compensation angle = tan(θ1) × tanθ × 180° / π is determined by the distance.

[0043] In the embodiment of the present application, the controller 4 is further configured to: Determine whether the engine speed of the rice harvester is greater than a set engine speed threshold, or determine whether the battery voltage of the rice harvester is greater than a set voltage threshold, and determine whether the functions of the angle sensor component 7 and the motor encoder are normal, and determine whether the automatic calibration function of the grain unloading drum 3 of the touch screen 8 is activated; If the engine speed of the rice machine is greater than the set engine speed threshold, or the battery voltage of the rice machine is greater than the set voltage threshold, and the angle sensing component 7 and the motor encoder function normally, and the automatic calibration function of the grain unloading barrel 3 of the touch display screen 8 is started, the height inclination information and the baffle detection information of the grain unloading barrel 3 are obtained in real time, and based on the height inclination information and the baffle detection information, the offset angle of the grain unloading barrel 3 from the preset standard position is calculated, and based on the offset angle of the grain unloading barrel 3, the compensation angle of the grain unloading barrel 3 is determined, and the driving mechanism is controlled to drive the grain unloading barrel 3 to rotate and adjust according to the compensation angle.

[0044] By judging the rice machine engine speed, battery voltage, angle sensor component 7 and motor encoder function and the automatic calibration function of the grain unloading barrel 3 of the touch display screen 8 before obtaining the relevant information of the grain unloading barrel 3 in real time, subsequent operations such as calculation of the offset angle of the grain unloading barrel 3, determination of the compensation angle and rotation adjustment are performed only when the corresponding conditions are met, ensuring that the calibration system operates in a suitable working state and avoiding invalid or erroneous calibration operations.

[0045] In the embodiment of the present application, the controller 4 is further configured to: In response to a user's triggering action for manual calibration of the grain unloading drum 3, a manual calibration signal is acquired, and based on the manual calibration signal, the grain unloading drum 3 is calibrated in the bracket; Controlling the driving mechanism to drive the grain unloading barrel 3 to rise to the highest position of the grain unloading barrel 3, and after the grain unloading barrel 3 rises to the highest position of the grain unloading barrel 3, controlling the driving mechanism to drive the grain unloading barrel 3 to rotate horizontally, and taking the minimum resolution during the horizontal rotation of the grain unloading barrel 3 as the calibration resolution; The calibration resolution is sent to the touch screen display 8 so that the touch screen display 8 displays calibration completion information.

[0046] In the embodiment of the present application, manual calibration is required during the first calibration. After manually calibrating the up, down, left and right positions in the grain unloading barrel 3 bracket, the left and right rotation resolution is determined. As long as manual calibration is not performed subsequently, the minimum resolution of the left and right rotation of the mechanical structure will not be changed until the next manual calibration action.

[0047] The controller 4 automatically determines and adjusts the calibration resolution. After the handle calibrates the position of the grain unloading barrel 3, the grain unloading barrel 3 rises to the highest point and then rotates left and right. The minimum resolution for stable left and right rotation is analyzed and calculated, and the calibration is completed when the screen displays it. This action is completed along with the manual calibration of the grain unloading barrel 3, thereby improving the return accuracy of the grain unloading barrel 3.

[0048] This system can drive the grain unloading barrel 3 to rotate horizontally and lift vertically through the driving mechanism. The angle sensing component 7 can detect the height inclination information of the grain unloading barrel 3 in real time and send it to the controller 4. The baffle detection component 9 can detect the positional relationship between the grain unloading barrel 3 and the return bracket baffle in real time. After obtaining this information, the controller 4 calculates the offset angle of the grain unloading barrel 3 from the preset standard position, and then determines the compensation angle, and controls the driving mechanism to drive the grain unloading barrel 3 to rotate and adjust according to the compensation angle, thereby ensuring the return accuracy of the grain unloading barrel 3 and preventing it from deviating from the bracket. The system does not require high rotation accuracy of the motor, and reasonable compensation values ​​can be set for motors with different precisions. It has high cost performance and practicality, with small changes in the solution, simple design and implementation, and easy promotion.

[0049] Figure 3 This is a flow chart of a method for calibrating a rice machine unloading drum in an embodiment of the present application.

[0050] like Figure 3 As shown, a method for calibrating a rice machine unloading drum mainly includes: S201, acquiring in real time height and inclination information of the grain unloading drum and baffle detection information, wherein the height and inclination information represents the rotation angle of the grain unloading drum relative to the initial position in the vertical direction, and the baffle detection information represents the positional relationship between the grain unloading drum and the baffle of the return bracket; S202, calculating an offset angle between the grain unloading drum and a preset standard position based on the height inclination information and the baffle detection information, wherein the offset angle represents an angular deviation in space between the current position of the grain unloading drum and the preset standard position; S203, determining a compensation angle of the grain unloading drum based on the offset angle of the grain unloading drum, and controlling a driving mechanism of the grain unloading drum to drive the grain unloading drum to rotate and adjust according to the compensation angle, so that the grain unloading drum reaches a preset standard position.

[0051] It should be noted that the execution body of this method can be a controller, and its implementation principle is the same as the principle of a rice machine unloading drum calibration system described above, which will not be repeated here.

[0052] Figure 4 This is a structural block diagram of an electronic device 300 according to an embodiment of the present application.

[0053] like Figure 4 As shown, the electronic device 300 includes a processor 301 and a memory 302 , and may further include one or more of an information input / information output (I / O) interface 303 , a communication component 304 , and a communication bus 305 .

[0054] The processor 301 is used to control the overall operation of the electronic device 300 to complete all or part of the steps in the above-mentioned rice machine grain unloading drum calibration method. The memory 302 is used to store various types of data to support the operation of the electronic device 300. For example, this data may include instructions for any application or method operating on the electronic device 300, as well as application-related data. The memory 302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as one or more of static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0055] The I / O interface 303 provides an interface between the processor 301 and other interface modules, which may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 304 is used to test wired or wireless communication between the electronic device 300 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more thereof, may include: a Wi-Fi component, a Bluetooth component, and an NFC component.

[0056] Communication bus 305 may include a path for transmitting information between the aforementioned components. Communication bus 305 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, for example. Communication bus 305 may be divided into an address bus, a data bus, a control bus, and the like.

[0057] The electronic device 300 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute the rice machine grain unloading drum calibration method given in the above embodiment.

[0058] The terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0059] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of application involved in this application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the aforementioned application concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions applied for in this application.

Claims

1. A rice machine unloading drum calibration system, characterized in that: The invention comprises a driving mechanism connected to a grain unloading drum (3), an angle sensing assembly (7), a baffle detection assembly (9) and a controller (4), wherein the angle sensing assembly (7) is arranged on one side of the rotating shaft of the grain unloading drum (3), the baffle detection assembly (9) is arranged on both sides (10) of the return bracket of the grain unloading drum (3), and the driving mechanism, the angle sensing assembly (7) and the baffle detection assembly (9) are all connected to the controller (4); The driving mechanism is used to drive the grain unloading drum (3) to perform horizontal rotation and vertical lifting; The angle sensing component (7) is used to detect the height inclination information of the grain unloading drum (3) in real time and send the height inclination information to the controller (4), wherein the height inclination information represents the rotation angle of the grain unloading drum (3) in the vertical direction relative to the initial position; The baffle detection component (9) is used to detect baffle detection information of the grain unloading drum (3) in real time during its movement, wherein the baffle detection information represents the positional relationship between the grain unloading drum (3) and the baffle of the return bracket; The controller (4) is used to obtain height inclination information and baffle detection information of the grain unloading drum (3) in real time, and calculate the offset angle of the grain unloading drum (3) from a preset standard position based on the height inclination information and the baffle detection information, wherein the offset angle represents the angular deviation of the grain unloading drum (3) in space relative to the preset standard position at the current position; Based on the offset angle of the grain unloading drum (3), the compensation angle of the grain unloading drum (3) is determined, and the driving mechanism is controlled to drive the grain unloading drum (3) to perform rotational adjustment according to the compensation angle, so that the grain unloading drum (3) reaches a preset standard position.

2. A rice harvester grain unloading drum calibration system according to claim 1, characterized in that: The baffle detection assembly (9) comprises baffle trigger switches symmetrically arranged on baffles on both sides (10) of the return bracket, so that the baffle trigger switches are symmetrically distributed along the symmetry axis of the top of the return bracket.

3. A rice harvester unloading drum calibration system according to claim 1, characterized in that: The driving mechanism comprises a grain unloading drum lifting assembly (6), a rotating gear (1) meshing with the horizontal rotating shaft of the grain unloading drum (3), and a grain unloading drum rotating motor (2) coaxially connected to the rotating gear (1), wherein the grain unloading drum rotating motor (2) is integrated with a motor encoder; The grain unloading drum up and down lifting assembly (6) is used to drive the grain unloading drum (3) to perform vertical lifting movements; The grain unloading drum rotating motor (2) is used to drive the rotating gear (1) to rotate; The rotating gear (1) is used to transmit the rotating power generated by the grain unloading drum rotating motor (2) to the grain unloading drum (3), so that the grain unloading drum (3) performs a horizontal rotating motion.

4. A rice harvester grain unloading drum calibration system according to claim 3, characterized in that: It also includes a touch screen display (8) and a control handle (5), wherein the touch screen display (8) and the control handle (5) are both connected to the controller (4); The touch screen display (8) is used to configure the automatic calibration function and set the offset angle threshold; The control handle (5) is used to respond to a user's triggering action for moving the grain unloading barrel (3), obtain a trigger signal, and enable the controller (4) to control the grain unloading barrel (3) to move from a support position to a grain unloading operation position based on the trigger signal.

5. A rice harvester grain unloading drum calibration system according to claim 4, characterized in that: The controller (4) is used to calculate the offset angle of the grain unloading drum (3) from the preset standard position based on the height inclination information and the baffle detection information, specifically for: Based on the baffle detection information, determining whether the grain unloading drum (3) is in contact with the baffle on either side of the return bracket; If the grain unloading drum (3) contacts the baffle on either side of the return bracket, the height of the grain unloading drum (3) is calculated based on the height inclination information; Calculating the offset distance of the grain unloading drum (3) based on the height of the grain unloading drum (3) and the height inclination information; Based on the offset distance of the grain unloading drum (3), the offset angle of the grain unloading drum (3) from a preset standard position is calculated.

6. A rice harvester grain unloading drum calibration system according to claim 5, characterized in that: The controller (4), when used to determine the compensation angle of the grain unloading drum (3) based on the offset angle of the grain unloading drum (3), is specifically used to: Determining whether the offset angle of the grain unloading drum (3) is greater than a set offset angle threshold; If the offset angle is greater than a set offset angle threshold, the offset angle is determined to be a compensation angle of the grain unloading drum (3).

7. A rice harvester grain unloading drum calibration system according to claim 4, characterized in that: The controller (4), before being used to obtain the height and inclination information and baffle detection information of the grain unloading drum (3) in real time, is also used to: Determining whether the engine speed of the rice harvester is greater than a set engine speed threshold, or determining whether the battery voltage of the rice harvester is greater than a set voltage threshold, and determining whether the functions of the angle sensor component (7) and the motor encoder are normal, and determining whether the automatic calibration function of the grain unloading drum (3) of the touch display screen (8) is activated; If the engine speed of the rice machine is greater than a set engine speed threshold, or the battery voltage of the rice machine is greater than a set voltage threshold, and the angle sensing component (7) and the motor encoder function normally, and the automatic calibration function of the grain unloading barrel (3) of the touch display screen (8) is started, the height inclination information and the baffle detection information of the grain unloading barrel (3) are obtained in real time, and based on the height inclination information and the baffle detection information, the offset angle of the grain unloading barrel (3) from the preset standard position is calculated, and based on the offset angle of the grain unloading barrel (3), the compensation angle of the grain unloading barrel (3) is determined, and the driving mechanism is controlled to drive the grain unloading barrel (3) to rotate and adjust according to the compensation angle.

8. A rice harvester grain unloading drum calibration system according to claim 7, characterized in that: The controller (4), before being used to obtain the height and inclination information and baffle detection information of the grain unloading drum (3) in real time, is also used to: In response to a user's triggering action for manual calibration of the grain unloading drum (3), a manual calibration signal is acquired, and based on the manual calibration signal, the grain unloading drum (3) is calibrated in the bracket; Controlling the driving mechanism to drive the grain unloading barrel (3) to rise to the highest position of the grain unloading barrel, and after the grain unloading barrel (3) rises to the highest position of the grain unloading barrel, controlling the driving mechanism to drive the grain unloading barrel (3) to rotate horizontally, and using the minimum resolution during the horizontal rotation of the grain unloading barrel (3) as the calibration resolution; The calibration resolution is sent to the touch display screen (8), so that the touch display screen (8) displays calibration completion information.

9. A method for calibrating a rice machine unloading drum, characterized in that: include: Real-time acquisition of height and inclination information of the grain unloading drum and baffle detection information, wherein the height and inclination information represents the rotation angle of the grain unloading drum relative to the initial position in the vertical direction, and the baffle detection information represents the positional relationship between the grain unloading drum and the baffle of the return bracket; Based on the height inclination information and the baffle detection information, calculating the offset angle of the grain unloading drum from the preset standard position, the offset angle representing the angular deviation of the grain unloading drum at the current position relative to the preset standard position in space; Based on the offset angle of the grain unloading drum, the compensation angle of the grain unloading drum is determined, and the driving mechanism of the grain unloading drum is controlled to drive the grain unloading drum to rotate and adjust according to the compensation angle, so that the grain unloading drum reaches a preset standard position.

10. An electronic device, characterized in that: comprising a processor coupled to a memory; The processor is configured to execute the computer program stored in the memory, so that the electronic device performs the method according to claim 9.

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