Early warning and coping system for blockage of harvester

Abstract

A harvester blockage early warning and response system comprises a plurality of crop processing monitoring devices used for monitoring the working condition of a crop processing structure in a harvester in real time, and a visual operation structure used for pre-judging blockage according to feedback information of the crop processing monitoring devices. The visual operation structure is communicated with the engine, obtains a working condition standard value of the crop processing structure through the engine, and actively inputs an abnormal condition early warning value and abnormal condition duration; and when the real-time working condition fed back by any crop processing monitoring device reaches the abnormal condition early warning value and the duration reaches the abnormal condition duration, the visual operation structure displays early warning information and controls the engine to stop at the same time. The operation blockage condition of the harvester is predicted, serious blockage is avoided, unnecessary manual burden is reduced, and the operation efficiency of the harvester is improved.

Description

Technical Field

[0001] The utility model belongs to the field of harvester manufacturing, and in particular relates to an early warning and response system for harvester blockage. Background Art

[0002] Harvesters, as a modern agricultural machine, are primarily used for harvesting crops. By integrating multiple functions such as harvesting, threshing, separating, and cleaning, they significantly improve agricultural production efficiency. They are widely used in harvesting grains such as wheat, rice, corn, and soybeans, as well as some cash crops, and are an indispensable key piece of equipment for agricultural modernization.

[0003] When a harvester is harvesting crops, if the cutter shovels mud, the crops are too dense and wet, the harvester moves forward too fast, the transmission belt slips, the concave screen is not cleaned of debris in time, the tail screen is opened too large, or the throttle is too low, crop blockage may occur, causing the harvesting table auger, debris auger, grain auger, vibrating screen, roller, etc. to not work normally, or even get stuck and not rotate.

[0004] Traditionally, harvesters deal with jams by stopping the machine for inspection and manual clearing. This requires manual removal of stuck crops, weeds, and soil from the machine. Sometimes, the crops are stuck too deep for manual access, and belts and related mechanical components may even need to be disassembled, which is time-consuming and labor-intensive. Each jam requires interrupting harvesting operations, severely impacting efficiency. Severe jams are especially time-consuming and labor-intensive to clear, delaying the optimal harvesting time. Frequent jams and improper clearing methods can damage machine components, increasing repair costs. During downtime for cleaning, operators may come into direct contact with moving parts, posing a safety hazard. Utility Model Content

[0005] The utility model aims to provide a harvester blockage early warning and response system to solve the technical problem of issuing an early warning before serious blockage occurs and avoiding long-term downtime.

[0006] To achieve the above objectives, the specific technical solutions of the harvester jam early warning and response system of the present invention are as follows:

[0007] A harvester jam early warning and response system includes a plurality of crop processing monitoring devices for real-time monitoring of the working conditions of the crop processing structure in the harvester, and a visual operating structure for predicting the occurrence of jams based on feedback information from the crop processing monitoring devices;

[0008] The visual operating structure is connected to the engine, and obtains the standard working condition value of the crop processing structure through the engine, and actively inputs the abnormal condition warning value and the abnormal condition duration; if the real-time working condition feedback from any of the crop processing monitoring devices reaches the abnormal condition warning value and the duration of the abnormal condition reaches the abnormal condition duration, the visual operating structure displays the warning information and simultaneously controls the engine to shut down.

[0009] As a further improvement of the present invention, the crop processing structure includes a vibrating screen, a debris auger and a grain auger, and the crop processing monitoring device is arranged corresponding to the above structure.

[0010] As a further improvement of the present invention, the crop processing monitoring device is a rotation speed sensor, including a vibrating screen rotation speed sensor, a waste auger rotation speed sensor and a grain auger rotation speed sensor.

[0011] As a further improvement of the present invention, the vibration screen speed sensor, the miscellaneous auger speed sensor and the grain auger speed sensor are non-contact sensors.

[0012] As a further improvement of the present invention, the vibrating screen speed sensor is used to monitor the rotation speed of the screen body in the vibrating screen, the miscellaneous auger speed sensor is used to monitor the rotation speed of the miscellaneous auger shaft, and the grain auger speed sensor is used to monitor the rotation speed of the grain auger shaft.

[0013] As a further improvement of the present invention, the abnormal condition warning value is 80% of the working condition standard value, and the abnormal condition duration is 3S.

[0014] As a further improvement of the present invention, the visual operation structure has a multi-scene selection mode, and the working condition standard value is adjusted by adjusting the engine speed according to different harvesting scenes.

[0015] As a further improvement of the present invention, the visual operating structure has a reset mechanism, and the harvester operation is restored through active operation after the blockage is cleared.

[0016] As a further improvement of the present invention, the visual operation structure supports a remote communication function, and receives real-time information of the crop processing monitoring device and communicates with the engine through a wireless network.

[0017] Beneficial effects:

[0018] By installing monitoring devices on key harvester crop handling structures, such as shaker, scrap auger, and grain auger speed sensors, the system monitors operating conditions in real time. Once it detects that the speed has fallen below a preset threshold for a specific period, it immediately issues an early warning signal. This allows operators to take proactive measures to avoid downtime and crop losses caused by blockages, and protects the machine from damage caused by overloading.

[0019] The visual operation structure not only displays warning information but also automatically shuts down the engine, effectively preventing mechanical failures caused by blockages and ensuring operational continuity and safety. This automatic response mechanism simplifies the operation process, reduces the burden on the operator, and improves operational efficiency.

[0020] The use of non-contact sensor technology ensures long-term stability and high-precision measurement of the monitoring device under complex working conditions, reduces maintenance requirements, extends the service life of the sensor, and does not interfere with the normal operation of the crop processing mechanism.

[0021] The system has a multi-scenario selection mode, which can flexibly adjust the standard working conditions according to different crops and different harvesting conditions. It optimizes operating performance by adjusting the engine speed, adapts to diverse farmland operating environments, and further improves harvesting efficiency.

[0022] The integrated remote communication function allows real-time monitoring data to be received remotely via wireless networks, making it easier for farm managers to understand the harvester's working status in real time, schedule and maintain it in a timely manner, realize intelligent management and decision-making, and reduce operating costs.

[0023] Designed with a reset mechanism, after the blockage problem is resolved, the operator can quickly resume harvester operation through simple steps, reducing downtime and improving operational flexibility and response speed.

[0024] To sum up, the harvester blockage early warning and response system of the utility model not only effectively prevents blockage problems during operation through precise monitoring, intelligent warning and control, but also greatly improves the intelligence level and economic benefits of agricultural machinery operations, providing strong technical support for the sustainable development of modern agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a harvester blockage early warning and response system of the utility model;

[0026] Explanation of the marks in the figure: 1. Harvester; 2. Miscellaneous auger; 3. Grain auger; 4. Vibrating screen speed sensor; 5. Miscellaneous auger speed sensor; 6. Grain auger speed sensor. DETAILED DESCRIPTION

[0027] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0028] Implementation example:

[0029] like Figure 1 As shown, a harvester blockage early warning and response system installs several crop processing monitoring devices on the crop processing structure of the harvester 1 to obtain real-time working status information of the crop processing structure. Then, through the visual operation structure, based on the real-time feedback information, early warning and response to blockage are made. The crop processing structure is the main working component that performs key steps such as threshing, separation, and cleaning after the crops enter the harvester. They work together to effectively separate and process the grains from the stems and impurities. They are also the parts of the harvester that are prone to blockage.

[0030] The crop processing structure includes a vibrating screen (not shown), a debris auger 2, and a grain auger 3. The vibrating screen is located in the harvester's cleaning device. Its main function is to perform preliminary or further screening of the threshed crops through rapid vibration, separating lighter impurities such as debris, dust, and twigs through the sieve holes, while the heavier grains remain on the screen surface and eventually fall into the grain auger or are directly collected. The debris auger 2 is located behind the vibrating screen. Its function is to further collect and transport the sieved debris, such as short stems, broken leaves, and incompletely threshed grains, to a designated discharge port after the vibrating screen has processed them, to maintain the cleanliness of the machine interior and the purity of the grains. The design of the debris auger 2 helps to improve cleaning efficiency and reduce crop losses. The grain auger 3 is located at the end of the cleaning system and is responsible for collecting the clean grains separated by the vibrating screen and transporting them to a grain tank or other collection device. The design of the grain auger 3 must ensure that the grain is transported with minimal breakage while ensuring smooth and efficient transport and avoiding blockage.

[0031] In this embodiment, the vibration screen speed sensor 4 is installed next to the vibration screen body, and can also be installed near the drive shaft or vibration motor. The correct installation position can accurately capture the vibration frequency changes of the vibration screen, and the sensor indirectly reflects the working status of the vibration screen by monitoring the rotation speed of the screen body. The miscellaneous auger speed sensor 5 is set at the end of the miscellaneous auger shaft. The sensor is installed here to accurately monitor the rotation state of the miscellaneous auger 2 to ensure smooth movement of miscellaneous materials and avoid accumulation and blockage. The grain auger speed sensor 6 is installed at the end of the grain auger shaft, close to the key link of grain processing and transportation. By monitoring the rotation speed of the auger shaft, it can ensure that the grain processing process is smooth and avoid grain accumulation or damage caused by abnormal rotation speed. The speed sensors in this embodiment all use non-contact sensors to ensure long-term stable and reliable monitoring performance.

[0032] In this embodiment, the visual operating structure is a touch screen operator set in the cockpit, which collects the working status information fed back by the crop processing structure in real time. It is connected to the engine and can indirectly obtain the standard speed of the crop processing structure by capturing the engine speed (all crop processing structures are driven by the engine). By manually entering the abnormal condition warning value and the abnormal condition duration, the blockage pre-tightening is achieved. The abnormal condition warning value and the abnormal condition duration are 80% and 3S of the standard speed respectively. When the real-time speed fed back by the vibrating screen speed sensor 4, the miscellaneous auger speed sensor 5 and the grain auger speed sensor 6 is lower than the abnormal condition warning value for more than 3S, a sound and interface warning will appear, and the engine will be controlled to shut down. After eliminating the cause of the blockage, the engine can be restored through the reset mechanism.

[0033] The visual operation structure sets different engine speed modes for different harvesting scenarios, such as rice, wheat, and other crops. It also has remote communication capabilities, collecting information and driving the engine through a wireless network, laying the foundation for future unmanned operations.

[0034] The system of the utility model monitors the speed of the vibrating screen, the speed of the waste auger 2, and the speed of the grain auger 3 in real time through a visual operating structure, predicts the blockage of the harvester operation, and can provide early warning and timely shutdown in the event of abnormal speed. This avoids serious blockages, reduces unnecessary labor burden, and improves the efficiency of the harvester operation. In terms of structure, the installation of the vibrating screen speed sensor 4, the waste auger speed sensor 5, and the grain auger speed sensor 6 is added to the original structure without affecting the operation and application of other components. Compared with the original operation, it is more convenient, low-cost, requires fewer modifications, and is more efficient.

[0035] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A harvester jam early warning and response system, characterized in that: It includes several crop processing monitoring devices for real-time monitoring of the working status of the crop processing structure in the harvester, and a visual operation structure for predicting the occurrence of blockage based on the feedback information of the crop processing monitoring devices; The visual operation structure is in communication with the engine, and obtains the standard value of the working condition of the crop processing structure through the engine, and actively inputs the abnormal condition warning value and the abnormal condition duration; When the real-time working condition fed back by any of the crop processing monitoring devices reaches the abnormal condition warning value and lasts for a duration equal to the abnormal condition duration, the visual operating structure displays a warning message and simultaneously controls the engine to shut down.

2. The harvester jam early warning and response system according to claim 1, characterized in that: The crop processing structure includes a vibrating screen, a debris auger and a grain auger, and the crop processing monitoring device is arranged corresponding to the above structure.

3. The harvester jam early warning and response system according to claim 2, characterized in that: The crop processing monitoring device is a rotation speed sensor, including a vibration screen rotation speed sensor, a waste auger rotation speed sensor and a grain auger rotation speed sensor.

4. The harvester jam early warning and response system according to claim 3, characterized in that: The vibration screen speed sensor, the miscellaneous auger speed sensor and the grain auger speed sensor are non-contact sensors.

5. The harvester jam early warning and response system according to claim 3, characterized in that: The vibration screen speed sensor is used to monitor the rotation speed of the screen body in the vibration screen, the miscellaneous auger speed sensor is used to monitor the rotation speed of the miscellaneous auger shaft, and the grain auger speed sensor is used to monitor the rotation speed of the grain auger shaft.

6. The harvester jam early warning and response system according to claim 1, characterized in that: The abnormal condition warning value is 80% of the working condition standard value, and the abnormal condition duration is 3 seconds.

7. The harvester jam early warning and response system according to claim 1, characterized in that: The visual operation structure has a multi-scene selection mode, and the working condition standard value is adjusted by adjusting the engine speed according to different harvesting scenes.

8. The harvester jam early warning and response system according to claim 1, characterized in that: The visual operation structure has a reset mechanism, and the harvester operation is restored through active operation after the blockage is cleared.

9. The harvester jam early warning and response system according to claim 1, characterized in that: The visual operation structure supports remote communication functions, receiving real-time information from the crop processing monitoring device and communicating with the engine through a wireless network.

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