What is the symbolic meaning of gears?

Gear also symbolizes the meaning that a group should have, unity, mutual assistance and teamwork, because without a gear, it can't continue to operate.

In metric gear transmission, worm transmission, synchronous toothed belt transmission, ratchet, gear coupling, spline and other parts, the standard modulus is the most basic parameter. It plays a fundamental role in the design, manufacture and maintenance of parts (see cylindrical gear drive, worm drive, etc. ).

Extended data:

Regardless of the gear module and steel section thickness, it is obviously unreasonable to use 20CrMnTi steel of the same steel grade. Due to the improvement of iron and steel smelting technology and the supply of alloy structural steel, the hardenability band of gear steel can be further reduced, and new steel grades can be developed according to the requirements of different products (such as transmission gears and rear axle gears) to meet their requirements.

The smelting process of 20CrMoH steel is stable, the hardenability band is narrow and easy to control. Compared with 20CrMnTi steel gear, the heat treatment deformation is small. The carburized layer has good and stable hardenability; The metallographic structure, surface and core hardness after carburizing and quenching can well meet the technical requirements.

Good fatigue performance, more suitable for small and medium module gears in automobiles. Considering the service conditions of gears comprehensively, the fatigue life of gears can be ensured and the heat treatment deformation of gears can be reduced. When used for manufacturing gearbox gears, it should be J9 = 30 ~ 36 HRC, and when used for manufacturing rear axle gears, it should be J9 = 37 ~ 42 HRC.

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