The domestic reducer market is constantly expanding, and more and more reducer manufacturers appear in the reducer market. For gearbox companies, only continuous development and innovation can guarantee their success in the growing gearbox market. In the production and manufacturing process of various types of reducers, Chinese reducer manufacturers specialize in equipment technology, which has made my country’s various types of reducer equipment achieve a great degree of development in engineering machinery fields and other fields. However, with the increasingly strict requirements for gearbox equipment in the automobile, aerospace and other industries, the future development of gearboxes is accompanied by considerable pressures and challenges.
As for the reducer, because it is mainly used as the transmission mechanism of various mechanical equipment, it occupies a certain place in the application of mechanical equipment. Although the structure of the reducer is not very complicated, it is still necessary to ensure the stability and reliability of each component. For different types of gearboxes, there are different calculation methods for different parameters. This article explains how to calculate gearbox parameter standards.
Common calculation methods for gearbox speed ratio:
1. Calculation method for defining the speed ratio:
Reduction ratio = input speed ÷ output speed.
For example, if the input rpm is 1450 and the output rpm is 50, the resulting gear ratio is 29.
The larger the gear ratio, the higher the output torque and the slower the output speed.
2. General calculation method:
Reduction ratio = operating torque ÷ 9,550 ÷ motor power × motor input power revolutions ÷ operating coefficient.
The rated power of the motor is P (kw), the rotation speed is n1 (r/min), the overall transmission ratio of the reducer is i, and the transmission efficiency is u.
3. Gear calculation method:
Reduction ratio = number of teeth of large gear ÷ number of teeth of small gear
4. Calculation method of reduction ratio of belt, chain and friction wheel:
Reduction ratio = drive wheel diameter ÷ drive wheel diameter.
5 Calculation of the gearbox torque:
Torque = 9,550 × motor power kilowatt (0.55 kW) ÷ motor speed (1,390) × gearbox speed ratio × gearbox efficiency (NM)
Reducer efficiency:
Reducer efficiency 94%
Pinwheel reducer efficiency 84%
Turbine gearbox efficiency 65%
Efficiency of two-stage turbine gearbox 35%
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