a rotary tiller

Abstract

The invention relates to the technical field of agricultural machinery and particularly relates to a rotary tiller. The rotary tiller comprises a vehicle frame, a power traction device and a rotary tillage device, wherein the power traction device is arranged in the front of the vehicle frame, and the rotary tillage device is arranged in the back of the vehicle frame; and the rotary tillage device comprises a transmission frame, a transmission mechanism, a rotary knife assembly and a protective hood, the transmission frame is fixedly connected onto the vehicle frame, the transmission mechanism is arranged in the transmission frame and drives the rotary knife assembly to rotate, the rotary knife assembly comprises a knife shaft and rotary knives rotating along with the knife shaft, cutting knives are arranged in the protective hood, each cutting knife is arranged between every two adjacent rotary knives, one end of each cutting knife is connected with a reciprocating push mechanism, the other end of each cutting knife is pointed to the axis of the knife shaft, and the reciprocating push mechanisms are arranged at the outer side of the protective hood and drive the cutting knives to reciprocate along the radial direction of the knife shaft. According to the rotary tiller, soil blocks or weeds attached to the rotary knives can be effectively stripped or chopped, so that the hacking performance and rotary tillage effect are improved; and the depth of soil piercing of the rotary knives can be adjusted, so that the resistance to the soil piercing of the rotary knives is low, and the power consumption of cutting and soil crushing of the rotary knives is lowered.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a rotary tiller. Background technique [0002] my country's current annual output of straw is about 620 million tons, and only 6% of the straw is returned to the field. A large number of them are discarded and burned, causing environmental pollution and fire hazards, causing serious losses to the national economy. In recent years, the Ministry of Agriculture has listed straw returning to the field as the main content of the "Harvest Plan" and "Fertile Soil Plan", and issued emergency notices many times, requiring all localities to strictly prohibit the burning of straw, and do a good job in returning straw to the field and comprehensive utilization. [0003] The current single-axis rotary tiller has a shallow plowing depth (less than 16cm), and the straw ratio in the soil is too high, which affects the normal growth of wheat. There are mainly two solutions, one i...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the ability of the rotary tiller to break the soil is poor, and the blades of the rotary tiller are easy to stick to soil clods or entangle weeds during work, making farming impossible

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