Lifter control method based on proportional control valve

Abstract

The invention provides a lifter control method based on a proportional control valve, and relates to the field of agricultural machinery. The lifter control method comprises the following steps: respectively obtaining the angles of two lifting arms, and processing the angles to obtain an actual buried depth of an agricultural implement; comparing a set soil buried depth with the actual buried depth, performing judgment, and outputting adjustment parameters; adjusting the action of a control valve group according to the adjusting parameters; adjusting the angle of the lifting arm to change the soil buried depth of the agricultural implement to meet the set soil buried depth. According to the lifter control method, the state of the agricultural implement is adjusted in real time through the lifting arm acting independently, the action of the lifting arm is fed back and adjusted according to the state of the agricultural implement, stable operation of the agricultural implement is kept, and the operation quality is improved.

Description

technical field [0001] The present disclosure relates to the field of agricultural machinery, in particular to a lifter control method based on a proportional control valve. Background technique [0002] The electro-hydraulic lifter is a key hydraulic component of the tractor-mounted operating unit, and is used to control the lifting of the suspended farm implements. Its performance directly affects the quality and efficiency of the tractor's field operations. At present, most domestic tractor lifters are composed of lifter housings, lift arms, single-acting independent cylinders, distributors, safety valves, speed regulating valves, force feedback sub-assemblies, operating mechanisms, etc., with low self-regulation performance. [0003] The inventors found that during the operation of the tractor in the hilly and mountainous terrain, it often encounters terrain undulations, unevenness, short-term terrain mutations and resistance mutations such as field ridges and tree roots...

AI Technical Summary

Problems solved by technology

[0003] The inventors found that when tractors are operating in hilly terrain, they often encounter situations such as undulating terrain, unevenness, short-term terrain mutations and resistance mutations such as field ridges and tree roots, which cause tractor implements to fluctuate up and down, which cannot meet the requirements of agronomic operations. It can also damage farm implements and hydraulic components, ultimately affecting the quality of tractor work

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