Variable liquid-fertilizer hole-application machine of steering wheel type

Abstract

The invention provides a variable liquid-fertilizer hole-application machine of steering wheel type, comprising a frame, a liquid-fertilizer tank, a GPS receiving antenna, a computer, an overflow valve and a diaphragm pump. A pressure-regulating valve is arranged on the diaphragm pump. The variable liquid-fertilizer hole-application machine of steering wheel type is characterized in that a high-pressure shaft tube, an electromagnetic valve and a liquid-fertilizer hole-application controller connecting the high-pressure shaft tube and the electromagnetic valve are additionally arranged; the high-pressure shaft tube is mounted on the frame and respectively communicated with the liquid-fertilizer tank by the overflow valve and the diaphragm pump; two hole-opening application wheels are mounted at both ends of the high-pressure shaft tube; each hole-opening application wheel comprises a wheel disc, guiding hole openers fixed on the wheel disc and a travel switch mounted on each guiding hole opener; the wheel disc is internally provided with a guiding hole corresponding to each guiding hole opener; the electromagnetic valve is axially mounted at both ends of the high-pressure shaft tube; the openings of the electromagnetic valve face to the guiding holes; the control end of the electromagnetic valve is connected with the travel switch; and the output end of the computer is connected with the liquid-fertilizer hole-application controller. The invention can directly apply the liquid fertilizer into soil surrounding various crop roots, can adjust application depth and application amount and has excellent working performance.

Description

technical field

[0001] The invention provides a rudder wheel type liquid fertilizer variable hole applicator, which belongs to the technical field of agricultural machinery. Background technique

[0002] Currently on the market or in the literature, the liquid fertilizer fertilizing machines include hand-held fertilizing guns, crank-link mechanism-driven needle-type liquid fertilizer deep applicators, variable sprayers, and the like. The hand-held fertilization gun is a manual operation with high labor intensity and low efficiency; the piercing needle type liquid fertilizer deep applicator driven by the crank connecting rod mechanism adopts a piercing fertilization mechanism designed in the form of a crank rocker, and the fertilizer spraying needle is fixed on the connecting rod , do vertical reciprocating motion during the working process, and after being inserted into the soil, the control valve opens and the liquid fertilizer is sprayed from the needle hole of the fertili...

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