Header height regulating and controlling device and method for reducing grain loss and harvester

Abstract

The invention provides a header height regulating and controlling device and method for reducing grain loss and a harvester. The header height regulating and controlling device comprises a height sensor, a profiling plate, an angle sensor, an ultrasonic sensor, a displacement sensor and a control unit. The height sensors are longitudinally distributed on the two sides of the header and used for detecting the height of crops and the lowest position of grains and transmitting the height and the lowest position to the control unit. The profiling plates are symmetrically arranged at the bottom of the header. The angle sensor is used for measuring the rotation angle of the profiling plates and transmitting the rotation angle to the control unit. The ultrasonic sensors are distributed on the two sides of the header and used for measuring the height of the header and transmitting the height to the control unit. The displacement sensor is used for measuring the displacement of the header lifting mechanism; the control unit is connected with the height sensor, the profiling plate, the angle sensor, the ultrasonic sensor, the displacement sensor and the header lifting mechanism. The height sensor is used for detecting the lowest point of crop grains, the height of the header is calculated according to the lowest point, stubble cutting stability can be improved, the loss rate of the grains can be reduced, and harvesting benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a header height control device and method for reducing grain loss and a harvester. Background technique [0002] my country is a large agricultural country, and rice, wheat, rapeseed, soybean and other crops are widely planted. The harvest of these crops is very important. In order to obtain a higher harvest rate and reduce the loss rate, foreign and domestic continuous development is related to these crops. harvester, in order to reduce the working intensity of laborers and reduce their workload in harvesting by driving the harvester, a contact-type header profiling device is installed on the bottom plate of the header in the prior art, and the ground can be automatically known through the profiling device. Therefore, the header automatically adjusts the height of the stubble under the control system. Although it helps to improve the stability of the hei...

AI Technical Summary

Problems solved by technology

[0002] my country is a large agricultural country, and rice, wheat, rapeseed, soybean and other crops are widely planted. The harvest of these crops is very important. In order to obtain a higher harvest rate and reduce the loss rate, foreign and domestic continuous development is related to these crops. harvester, in order to reduce the working intensity of laborers and reduce their workload in harvesting by driving the harvester, a contact-type header profiling device is installed on the bottom plate of the header in the prior art, and the ground can be automatically known through the profiling device. In this way, the header automatically adjusts the stubble height under the control system. Although it helps to improve the stability of the stubble height, it cannot judge the lowest point suitable for crop harvesting, and fails to reduce the loss rate of seeds.

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