Wheat fertilizer precision compound direct sowing machine for straw-covered field

Abstract

The invention discloses a wheat fertilizer precision compound direct sowing machine for a straw-covered field. The compound direct sowing machine comprises a rotary tilling device, a fertilizer discharging device, a ditching device and a soil covering and vibration pressing device, wherein the fertilizer discharging device is installed on the rear side of the rotary tilling device, the ditching device is arranged on the lower side of the fertilizer discharge device, the soil covering and vibration pressing device is installed on the rear side of the ditching device, and the fertilizer discharging device comprises a fertilizer box, a fertilizer discharging auger and a first motor; a plurality of material outlets are formed in the bottom of the fertilizer box, the fertilizer discharging auger is rotatably mounted in the fertilizer box, each set of spiral blades of the fertilizer discharging auger includes a first spiral blade and a second spiral blade which have opposite rotation directions and same sizes, and each set of spiral blades is disposed between arbitrary two adjacent material outlets; the first motor drives rotary shafts to rotate, each set of spiral blades pushes fertilizer at the corresponding set of spiral blades to the material outlets on both sides, and rotation speeds of the fertilizer discharging auger and spiral groove-type hole wheels are proportional to the walking speed of the direct sowing machine, so that active and precise fertilizer discharging of the wheat fertilizer precision compound direct sowing machine for the straw-covered field is achieved.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a compound direct-seeding machine for wheat fertilizer and fine fertilizer in straw-covered fields. Background technique [0002] For the fertilizer discharge device installed on the existing direct seeding machine or combined operation machine, the fertilizer far away from the discharge port is easy to accumulate during the discharge process, and cannot be discharged through the discharge port, resulting in waste of fertilizer, and the traditional straw-covered field wheat The fertilizer discharge wheel in the fertilizer precision compound direct seeding machine is driven by the ground wheel. When the direct seeding machine is driving in a field with straw, the straw is easily drawn into the ground wheel and the ground wheel does not turn. If it does not turn, the fertilizer will stay in the fertilizer box and not be discharged. Contents of the invention [0003] In orde...

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Problems solved by technology

[0002] For the fertilizer discharge device installed on the existing direct seeding machine or combined operation machine, the fertilizer far away from the discharge port is easy to accumulate during the discharge process, and cannot be discharged through the discharge port, resulting in waste of fertilizer, and the traditional straw-covered field wheat The fertilizer discharge wheel in the fertilizer precision compound direct seeding machine is driven by the ground wheel. When the direct seeding machine is driving in a field with straw, the straw is easily drawn into the ground wheel and the ground wheel does not turn. Not turning, causing the fertilizer to stay in the fertilizer box without being discharged

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