Cutaway disk type stubble breaking knife and stubble-breaking and furrowing device

Abstract

The invention provides a cutaway disk type stubble breaking knife and a stubble-breaking and furrowing device. The cutaway disk type stubble breaking knife is characterized in that cutting edge shape of the helical cutaway disk type stubble breaking knife is established according to the parameter equation; a standing plate of the stubble-breaking and furrowing device is fixedly connected with a mandrel which is bent from the middle towards the two ends; two multi-cutaway disk type stubble breaking knifes are in rotational connection with two ends of the mandrel through a bearing and are configured at an included angle of 12 degrees; a furrower connector is connected with the lower end of the standing plate, and adjusting holes in rows are formed in the furrower connector; the furrower having furrowing edges at the front end is assembled on the furrower connector through a bolt; a seed throwing pipe is fixed at the rear part of the standing plate through a connection plate. The stubble-breaking and furrowing device can ensure the stubble-breaking quality, prevents winding and blockage of the broken stubbles, and has no problem of missing cutting, and also has the advantages of relatively lower working resistance, relatively strong soil-in ability, order, straight and depth-uniform ditch, adjustable depth, wide application range, simple structure, and convenient adjustment, disassembly, assembly and maintenance.

Description

technical field [0001] The invention relates to an agricultural machinery component, in particular to a notched disc cutter and a stubble breaking and ditching device, which can achieve the effects of stubble breaking, ditching and sowing at one time. Background technique [0002] No-tillage sowing is carried out under the condition of surface weeds, crop residues and straw mulch, the working environment is poor, and the agricultural technology requirements for sowing machines are high. Firstly, the no-tillage seeder can prevent the seeder from being blocked by weeds, straw and crop residues; secondly, the ditch opener should have sufficient stubble breaking and soil penetration capabilities, and can open holes on uncultivated land that are conducive to seed growth. Developed seed furrows, and reduce the amount of soil breaking and tillage resistance. [0003] There are two stubble breaking methods used by foreign no-tillage seeders: one is to add a stubble breaking disc kn...

AI Technical Summary

Problems solved by technology

The effect of stubble cutting and anti-blocking will directly affect the shape of seed ditch and seed bed, affect the effect of sowing, and further affect the emergence rate, survival rate and yield of crops.

At present, stubble breaking and anti-blocking devices are commonly used at home and abroad, among which the smooth disc knife has the least stubble cutting resistance; the notched disc knife has a certain impact and is easier to cut stubble, but the notch of the notched disc knife has a missing cutting area. , the bottom of the root stubble cannot be cut at the largest gap; the stubble cutting resistance and power consumption of the corrugated disc knife are large, and due to the shape of the corrugated disc knife, the seed ditch opened is also relatively large; but in general Foreign products generally have relatively good wear resistance and relatively high reliability, and the stubble breaking effect is also relatively good, but the price is too high

There is less research on the production technology of disc blades and rotary tillage blades in my country, which leads to the fact that domestic stubble breaking knives are inferior to foreign products in terms of product wear resistance, reliability, and product stubble breaking effect. There is a large gap between them, which to a certain extent restricts the promotion and development of conservation tillage in my country

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