A control method of a fully hydraulically driven high-speed rice transplanter chassis

Abstract

The invention discloses a method for controlling a chassis of a full-hydraulic drive high-speed rice transplanter; when actual traveling speed is less than A, a traveling variable motor is controlledto reach maximum displacement; when the actual traveling speed is greater than or equal to A, a plunger pump is controlled to reach maximum displacement; when overspeed is detected, the traveling variable motor that is under overspeed is controlled to reach zero displacement; when a seedling box is inclined, the seedling box reaches a horizontal state by controlling a profiling balance control valve; when grounding pressure of a seedling box floating plate is too high or too low, the grounding pressure of the seedling box floating plate is controlled to reach a set value through a seedling boxlifting control valve; when a steering wheel exceeds a set angle, the seedling box rises to the highest position; when in-situ debugging is carried out, a left reversing valve is controlled to be electrified; during non-operation transition, a right reversing valve is electrified; when normal traveling transplanting operation is carried out, the left reversing valve and the right reversing valveare not electrified; during idling, both the left reversing valve and the right reversing valve are electrified; and when plant spacing is adjusted to be smaller or larger, a rice transplanting motoris controlled to reach a larger or smaller displacement. The method can effectively improve the operation flexibility and reliability of the transplanter.

Description

technical field [0001] The invention relates to a rice transplanter, in particular to a method for controlling the chassis of a fully hydraulically driven high-speed rice transplanter. Background technique [0002] Rice is one of the most important grains in my country. Ensuring increased rice production and income is of great significance to maintaining food supply and ensuring national food security. At this stage, in order to ensure high rice yields, machine transplanting is mainly used for planting. Compared with manual transplanting and hand-held transplanting machines, high-speed rice transplanting machines have a series of advantages such as high efficiency and good planting quality. Rice transplanting machines have been working in paddy fields with narrow roads, deep mud feet and rheological characteristics for a long time. The high-speed rice transplanter produced can basically meet the requirements of paddy field work, but it also has the following disadvantages: ...

AI Technical Summary

Problems solved by technology

[0003] (1) To use multi-stage gears and transmission shafts to transmit power, the speed needs to be adjusted mechanically, and the speed adjustment range is small

[0004] (2) The adjustment of the horizontal profiling mechanism and the lifting mechanism of the seedling box is not sensitive and the precision is low

[0005] (3) The distance between transplanting seedlings cannot be adjusted continuously, and it cannot be widely adapted to various planting modes and agronomic requirements

[0006] (4) It is not conducive to the realization of automation and intelligent control, and it is difficult to operate remotely

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