Stalk pressing device assisting high-pressure water jet cutting stalks and preventing clogging under no-tillage conditions

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a stalk pressing device for assisting high-pressure water jet cutting stalks and preventing blockage under no-tillage conditions, including: a frame, a controller, an ultrasonic sensor, a parallel four-bar profiling mechanism, a hydraulic cylinder, The stalk pressing mechanism and the water jet cutting device; the combination of the parallel four-bar profiling mechanism and the hydraulic cylinder is adopted, and the ground surface fluctuation signal is monitored by the ultrasonic sensor, and the control mechanism drives the hydraulic cylinder to realize the automatic profiling function; the two pressing wheels are symmetrically distributed, which can Squeeze the straw in front of the machine under the pressing wheels to prevent the straw from entering between the pressing wheels without compaction and affect the cutting effect of the water jet; there is a certain distance between the bottom of the two pressing wheels, which can compact the bottom straw with a fixed width to achieve Cutting with support; the height of the water jet cutting device can be adjusted, that is, the jet target distance can be changed to adapt to the situation of different straw coverage on the ground, and the impact of straw on the jet nozzle can be avoided while achieving the optimal ditching effect.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and particularly relates to a stalk pressing device for assisting high-pressure water jets to cut stalks and prevent blocking under no-tillage conditions. Background technique [0002] No-till sowing under the condition of returning straw to the field is a major direction of conservation tillage technology, which can prevent soil erosion, save water and moisture, and reduce soil disturbance. However, there are a lot of straw residues on the surface after the straw is returned to the field. At this time, no-tillage sowing is easy to cause blockage in front of the ditch opener, which affects the ditching operation and sowing effect, and finally affects the yield of the current season crops. [0003] The current anti-blocking technology can be roughly divided into active, passive and dredging anti-blocking. Among them, the active anti-blocking technology mainly relies on external pow...

AI Technical Summary

Problems solved by technology

However, the arrangement of the straw on the ground surface is messy and uneven, and the surface of the general land is undulating, so it is necessary to design a straw pressing device that assists high-pressure water jet cutting and anti-blocking under no-tillage conditions, which can realize the auxiliary cutting of compacted straw and profiling on the ground And target distance can be adjusted and other functions

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