Four-wheel synchronous automatic lifting regulating mechanism

Abstract

The invention relates to a four-wheel synchronous automatic lifting regulating mechanism. The mechanism comprises a sensing assembly, a hydraulic power assembly and a lifting performing mechanism, wherein the lifting performing mechanism comprises a front lifting device and a rear lifting device; a rear wheel driven chain box is driven by a hydraulic cantilever to rotate around a rear axle so as to lift a rear machine body; a chain and chain wheel drive assembly and a toothed wheel and toothed column drive assembly are driven by the hydraulic cantilever so as to lift a front machine body; during work, the height variation of a furrow is changed into shift motion by the sensing assembly and a hydraulic control valve of an oil cylinder is controlled to ensure that the oil cylinder respectively works in three states of oil feeding, oil discharging and pressure maintaining; a piston rod extends or retracts according to the different working states, the front body and the rear body of a transplanter are controlled through the performing mechanism to be lifted simultaneously so as to drive a pair of planting pincers to be lifted at the same time and realize the automatic regulation of planting depth; through the lifting control of a hydraulic automatic lifting mechanism, the uniform planting depth of seedlings is guaranteed in the transplanting process.

Description

technical field [0001] The invention relates to a four-wheel synchronous automatic lifting adjustment mechanism of a vegetable, rapeseed and other seedling transplanting machine. Background technique [0002] At present, it is inevitable to use a transplanting mechanism on seedling transplanting machines such as vegetables and rapeseed, and the planting tongs in the transplanting mechanism are not only required to run straight up, down and vertically, but also need to be automatically adjusted according to the height of the ridge. Seedling transplanting depth, always keep the same depth of planting seedlings, and does not affect the planting depth due to the height of the ridge and the depth of the wheel sinking. This requires the use of an automatic lift adjustment mechanism. At present, a small number of transplanting machines have been developed on the market. These transplanting machines adopt two lifting methods: one is the transplanting machine that can only lift the ...

AI Technical Summary

Problems solved by technology

The rotation and lifting will make the planting forceps not work in the vertical direction, causing the transplanted seedlings to tilt and affect the planting effect

The other is to use a parallelogram four-bar lifting mechanism to lift the front and rear fuselages simultaneously. Although this lifting mechanism ensures the simultaneous lifting of the front and rear fuselages, it will not tilt the planting tongs, but in the process of lifting , the center of gravity of the whole machine moves back and forth a lot, which brings instability to the machine work

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