Generally, there are gear teeth, tooth grooves, end faces, normal surfaces, tooth top circles, tooth root circles, base circles, and indexing circles.

Gear teeth

Referred to as a tooth, it refers to each convex part of a gear used for meshing. These convex parts are generally arranged in a radial shape and contact with the teeth on the gear, making the gear continuously engage.

Alveolar

It is the space between two adjacent gears on a gear; The end face is a cylindrical gear or cylindrical worm, perpendicular to the plane of the gear or worm shaft.

What is the structure of the reducer gear?

end face

Is the plane at both ends of the gear.

Normal surface

Refers to a plane perpendicular to the tooth line of a gear tooth.

Addendum circle

Refers to the circle at the tip of a tooth.

Dedendum circle

Refers to the circle at the bottom of the slot.

Base circle

The generating line that produces the involute is a pure rolling circle.

Graduation circle

It is a standard circle for measuring the geometric dimensions of end face gears.

What are the materials of the reducer gear?

The commonly used steels for manufacturing gears include quenched and tempered steel, quenched steel, carburized and quenched steel, and nitrided steel. Cast steel has a slightly lower strength than forged steel and is commonly used for large gears; Gray cast iron has poor mechanical properties and can be used for light load open gear transmission; Ductile iron castings can partially replace steel gears; Plastic gears are mainly used for light loads and low noise, and matching gears generally use steel gears with good heat transfer performance.

In the future, gears will develop in the direction of light load, high speed, high accuracy, and g efficiency, striving for small specifications, light weight, long service life, and economic reliability.

The development of gear theory and manufacturing technology will be a further study of the principle of gear damage, a foundation for establishing reliable strength calculation methods, and a theoretical basis for improving gear load carrying capacity and improving gear life; Develop new gear types represented by arc gears; Research new gear materials and new processes for manufacturing gears; Study the elastic deformation, production and installation errors, and temperature field distribution of gears, improve the stability of gear operation, increase the contact surface of gears, and improve the bearing capacity of gears.

Friction, lubrication theory, and lubrication technology are the basic work of gear research. Studying the theory of elastohydrodynamic lubrication, promoting the selection of synthetic lubricating oils, and appropriately adding extreme pressure additives can not only improve the bearing capacity of the tooth surface, but also improve transmission efficiency.