Tillage depth detection control system and tillage depth control method for suspended agricultural machinery

Abstract

The invention provides the tillage depth detection control system and the tillage depth control method of the suspended agricultural machinery in the field of agricultural machinery, including the rear axle of the tractor and the control device. The other end of the rod is hinged to the first swing rod, the other end of the first swing rod is hinged to one end of the second swing rod, a second fixed plate is arranged on one side of the rear axle, the upper end of the second fixed plate is connected to the angular displacement sensor, and the other end of the second swing rod It is connected with the angular displacement sensor, and the distance sensor for measuring the ground clearance is arranged on the rear axle; the control device includes a controller and a hydraulic driver, the controller is connected with a touch display controller, and the touch display controller is connected with the hydraulic driver, and the hydraulic The output port of the driver is connected with an electro-hydraulic proportional valve; the invention has high precision of tillage depth detection and control, and can be applied to the work of tillage depth control on agricultural machinery.

Description

technical field [0001] The invention relates to a tillage depth detection control system and a tillage depth control method, in particular to a tillage depth detection device and a control system on a suspended agricultural machine. Background technique [0002] Soil subsoiling and rotary tillage are both important links in conservation tillage. When agricultural machinery is subsoiling or plowing, the tillage depth is the key to judging the tillage quality. In the prior art, there are two detection methods for the tillage depth, one One is to use manpower to sample and detect the field, and the other is to use the tillage depth detection device to detect the tillage depth. The former needs to manually detect the tillage depth after subsoiling or rotary tillage. Due to the unevenness of the field The depth of tillage in different places of the same field is also different, the labor intensity is high, and the detection error is large; the latter kind of tillage depth detecti...

AI Technical Summary

Problems solved by technology

In the prior art, there are two methods of tillage depth control. One is that the driver manually adjusts the handle operation according to the display result of the tillage depth. Not only the error is large, but also the driver needs to pay attention to the displayed tillage depth value in real time, which is very technically difficult. It is difficult to obtain a reliable guarantee. The other is to control the automatic control of the tillage depth through the connection between the electro-hydraulic control valve and the hydraulic oil circuit. The tillage depth control is adjusted based on the result of the tillage depth detection. The depth detection accuracy is very low and the error is large, resulting in low precision of control tillage depth

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