Dung beetle surface structure bionic gear

Abstract

The invention discloses a dung beetle surface structure bionic gear which comprises a gear body. Outer gear teeth and outer gear grooves are formed in the gear body, and the outer gear teeth and the outer gear grooves are arranged at intervals. The dung beetle surface structure bionic gear is characterized in that more than one segment body is arranged on the surfaces of the outer gear teeth. Compared with the prior art, the dung beetle surface structure bionic gear has the advantages that the anti-fatigue capacity of the gear can be effectively improved, and the friction force of the gear can be effectively reduced.

Description

technical field [0001] The invention belongs to the field of mechanical power transmission, in particular to a bionic gear imitating the surface structure of a dung beetle. [0002] Background technique [0003] Gear transmission is one of the most important transmission methods in the machinery industry. It has a series of advantages such as large speed ratio range, wide power range, compact and reliable structure, and is widely used in various industrial sectors such as aviation, aerospace, transportation, and machinery manufacturing. [0004] When the gears mesh and drive, there will be sliding friction due to the relative sliding on the meshing surfaces. When the relative sliding speed changes direction suddenly at the node, the direction of the friction force also changes suddenly. The change of the magnitude and direction of the friction force causes a pulse force at the node, that is, the transmission force of the "node pulse" whose size and duration are meshed with ...

AI Technical Summary

Problems solved by technology

[0022] Although these methods to improve the service life of gears solve the fatigue and wear problems of gears to a certain extent, they all have certain limitations and cannot fundamentally solve the fatigue and wear problems of gears.

[0023] Although material changes and surface coatings can improve the fatigue resistance and wear resistance of gears, they are expensive and difficult to popularize

[0024] Surface heat treatment technology, whether the material can be quenched is related to the carbon content. Those with high carbon content can be quenched directly, and those with low carbon content need to be carburized to increase the carbon content of the quenched layer before they can be quenched, and quenched Treatment can only improve the surface strength of the material to a certain extent, and secondary quenching cannot be performed. At the same time, the residual stress left by quenching can accelerate the damage of the gear during work.

[0025] Although the effect of laser surface heat treatment is obvious, it has the same problem as surface heat treatment, which is easy to cause material fragmentation, and the residual stress left behind can accelerate the damage of gears during work.

[0026] To sum up, various methods to improve gear life have certain limitations, and cannot fundamentally solve the problem of gear fatigue and wear

Fatigue damage and wear of gear transmission not only consumes energy and materials, but also consumes more manpower and material resources for repairs, shutdowns and lower labor productivity when replacing parts due to fatigue damage and wear, so reduce fatigue and friction of mechanical transmission parts Wear and tear is the order of the day

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