A vertical shallow rake machine with double crank rocker mechanism

Abstract

The invention belongs to the technical field of agricultural machinery, and relates to a vertical shallowly-harrowing machine of a double-crank rocker mechanism. The vertical shallowly-harrowing machine comprises a box body, a speed change mechanism, a power transmission mechanism and a harrowing mechanism, wherein the power transmission mechanism comprises a first crank rocker mechanism and a second crank rocker mechanism. A bevel gear of the speed change mechanism slows down during rotating and drives a first crank disc plate to rotate, power conversion is conducted through the double-crank rocker mechanism twice and then transmitted to the harrowing mechanism for working, and transmission is accurate and reliable. Due to a steering adjusting mechanism, the ceaseless directional rotation of a cutter shaft is ensured; when a slide block starts to reciprocate linearly, a spring is in a stretch state, and therefore a driven rocker bears the tensile force of the spring and swings in the tensile force direction of the spring; when a second crank disc shaft is at a dead point, the spring is compressed to produce spring pressure, and the driven rocker drives the second crank disc shaft to pass through the dead point under the effect of the spring pressure. The vertical shallowly-harrowing machine is an innovation of tillage and soil preparation machines and has great economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a vertical shallow rake machine with a double crank rocker mechanism. Background technique [0002] With the development of modern agriculture, improving the quality of plowing and land preparation has become an important issue. Many scientific researchers have carried out research on tillage and land preparation machines, and developed a batch of modern and practical tillage and land preparation machines, among which disc harrows and rotary tillers occupy an important position. However, there are still some problems in the existing implements, such as serious soil turning and high power consumption in disc harrows; problems such as shallow plowing depth and serious throwing of soil in horizontal rotary tillers. Although the vertical drive harrow has the advantages of less soil disturbance and moderate tillage depth, it has problems such as complex power transmiss...

AI Technical Summary

Problems solved by technology

However, there are still some problems with the existing machines and tools, such as the disc harrow has severe soil turning and high power consumption; the horizontal rotary tiller has problems such as shallow plowing depth and severe soil throwing.

Although the vertical drive harrow has the advantages of less soil disturbance and moderate tillage depth, there are problems such as complex power transmission system and high cost, which hinder the development and application of drive shallow harrow

[0003] Patent CN 201420080203.1 discloses a vertical rotary tiller. Although this machine can solve the problems of large soil particles, uneven looseness of the upper and lower layers of soil, uneven force on the machine, and poor rigidity, the gear transmission it uses is not only cost-effective High, also need sealing device, lubricating device, complex and redundant structure

Patent CN 201220199823.8 discloses a power-driven rake with a detachable rake blade. Although this implement avoids gear transmission and adopts cam and camshaft transmission, the contact line is easy to wear during rotation, and it is not easy to repair. The transmission resistance is large and the efficiency is low. Moreover, it is difficult to process the curved shape of the cam, which requires high precision and high production costs.

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