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Material Selection and Gear Structure Analysis for Gear Machining

Material Selection and Gear Structure Analysis for Gear Machining

Commonly used gear materials include quenched and tempered steel, quenched steel, carburized quenched steel and nitrided steel. The strength of cast steel is slightly lower than that of forged steel, and it is often used for gears with larger sizes; gray cast iron has poor mechanical properties and can be used in light-load open gear transmission; ductile iron can partially replace steel to make gears; plastic gears are mostly used Where light load and low noise are required, steel gears with good thermal conductivity are generally used for matching gears. After years of development in the gear industry, the future gears are moving closer to heavy load, high speed, high precision and efficiency, and put forward higher requirements for the size, weight, service life and cost performance of gear products.

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How to prevent gear deformation after tempering

How to prevent gear deformation after tempering

We all know that gears are easy to deform during heat treatment, and serious deformation can easily affect our daily work, so how should we prevent gears from deforming after heat treatment?

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Causes of Noise Occurrence in Gear System

Causes of Noise Occurrence in Gear System

The main causes of noise in the gear system are as follows: (1) improper selection of parameters in gear design, too small coincidence, improper or no profile modification, unreasonable gear box structure, etc.

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The basic characteristics of gear transmission

The basic characteristics of gear transmission

The power and speed range of gear transmission is very large, the power can be from very small to hundreds of thousands of kilowatts, and the peripheral speed can be from very small to more than one hundred meters per second. Gear sizes can range from less than 1mm to more than 10m.

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Improve the shaft gear hobbing processing technology fine method

Improve the shaft gear hobbing processing technology fine method

The shaft gear is the main part of the gearbox, and its machining accuracy directly affects the overall quality of the gearbox. At present, we use the gear tooth processing method is hobbing a shaving method. To produce high-precision gears through the rolling and shaving process, the rolling and shaving process is well developed. The shaving accuracy depends to a large extent on the accuracy of saddle hobbing, so some error items in hobbing are strictly controlled to produce high-quality gears. Hobbing is a commonly used gear processing method, in the high precision of the hobbing machine, the use of hob, can be processed 4-5 precision gear teeth. On the ordinary hobbing machine, with ordinary precision hob, only 8 precision gear teeth can be processed. The accuracy required for the gear teeth of the gearbox shaft is 8-7-7, and the two holes and the end face are mainly used as the positioning reference when hobbing. Therefore, it is very important to analyze the error sources of hobbing and master the methods to ensure and improve the machining accuracy.

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Overview, analysis and causes of gear noise

Overview, analysis and causes of gear noise

Gear noise should be accurately called gear transmission noise, which refers to the noise radiated by the meshing gear pair or gear set due to mutual collision or friction during transmission.

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