Saw-blade saw bit with bionic sawteeth for cutting maize straws

Abstract

The invention relates to a saw-blade saw bit with bionic sawteeth for cutting maize straws, which belongs to the technical field of the simulation of agricultural machinery. The curve of the sawteeth in the saw-blade saw bit is similar to that of the outer contour of Chondracris rosea rosea cutting teeth, and a polynomial expression of a triangular function of a single curve unit is as follows: y=184.2sin(0.004499x+0.04364)+72.21sin(0.009018x+1.696)+48.33sin(0.0176x+2.394)+38.07sin(0.03065x-1.964)+11.13sin(0.07535x-0.5685)+13.37sin(0.03792x-1.018)+2.744sin(0.06923x+0.3267)+11.63sin(0.04853x+4.342), wherein x is more than or equal to 0 and less than or equal to 667; and compared with a traditional straight-sectional sawtooth structure or the traditional sawtooth structure consisting of straight sections and arc sections, the sawtooth curve structure can reduce the cutting resistance in the cutting process, so that the power consumption for cutting the maize straws can be reduced by 13 percent, the phenomenon for seizing the saw bit can be reduced, and the abrasion resistance and the working efficiency of the sawteeth can be improved.

Description

technical field [0001] The invention belongs to the field of bionic agricultural machinery technology, and in particular relates to a saw blade with bionic sawtooth for cutting corn stalks in agricultural machinery. Background technique [0002] The annual output of corn stalks in my country is about 600 million tons, which is an important biomass resource in the crop production system. The straw cutting process is a process of continuous interaction between the straw and the working parts of the cutting machine. Because the special tissue structure of the cut surface of corn stalks can resist stem damage, the energy consumption in the cutting process of corn stalks is high. Moreover, the operating conditions of the straw cutting machine are very harsh and complicated, and friction and wear often occur with the sand in the soil or the abrasives in the crops, resulting in the failure of the working parts of the cutting machine. At present, most of the cutting parts of corn ...

AI Technical Summary

Problems solved by technology

Due to the special tissue structure of the cut surface of corn stalks, it will resist the destruction of the stalk, resulting in high energy consumption during the cutting process of corn stalks

Moreover, the operating conditions of the straw cutting machine are very harsh and complicated, and friction and wear often occur with the sand in the soil or the abrasives in the crops, resulting in the failure of the working parts of the cutting machine.

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