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Gear Improve The Tooth Surface Lubrication, Reduce The Meshing Noise
Aug 11, 2017

We know that the Gear are an elastic body, work force after the inevitable bending deformation. Although the end of the meshing will return to its original state, but the deformation of the meshing will occur when the base section of the impact of error, so that the next pair of tooth Gear and tooth root interference, can produce a great impact caused by meshing noise.

The same time as

The permissible K-factor of the surface carburizing quenching gear is about 4-5 times that of the quenched and tempered gear. The effect of tooth deformation is much greater than that of quenched and tempered gears.

In order to avoid the impact of engagement, to improve the tooth surface lubrication, reduce the meshing noise, the need for gear tooth tip and tooth to be trimmed.

The trim amount is determined based on the gear load to calculate the amount of gear deformation, the gear shaft bending, and the amount of torsional deformation.

The high hardness of the tooth surface of the high hardness of carburizing quenching gear, tooth top, tooth finishing technology is to ensure product performance indispensable necessary conditions.

The coefficient of load K, including the use factor KA, the dynamic load factor KV, the interdental load distribution coefficient Kα, and the tooth load distribution coefficient Kβ, that is, K = KAKVKαKβ The use factor KA is the additional action due to the external factors when the gear meshing The coefficient of influence of the load. This dynamic load depends on the characteristics of the prime mover and driven machinery, the mass ratio, the coupling type, and the operating status.

The same time as

The dynamic load factor KV is the coefficient that affects the dynamic load generated when the gear itself is engaged. And manufacturing and assembly errors, peripheral speed and so on. The same time as

The interdental load distribution coefficient Kα is a factor that takes into account the influence of the unevenness of the load distribution between the Gear. And the pitch error, elastic deformation and so on. The same time as

The tooth load distribution coefficient Kβ is the coefficient that takes into account the influence of the load on the tooth surface along the distribution of the contact line. With the gear relative to the bearing position, shaft, bearing, bearing deformation and manufacturing, assembly error and so on.

Why does the gear need to be quenched? We know that some parts (including gears) in the workpiece in the torsion and bending and other alternating load, the impact of the load, its surface layer to bear a higher stress than the heart.

In the case of friction, the surface layer is also constantly being worn, so some parts of the surface layer of high strength, high hardness, high wear resistance and high fatigue limit requirements, only the surface strengthening to meet the As the surface hardening has the advantages of small deformation and high productivity, it is widely used in production, especially gear. The same time as

The simple diagnosis of the gear is to quickly determine whether the gear is in normal working condition, so that the gear in the abnormal working condition is further subjected to the precise diagnosis analysis or other measures.

The simple diagnosis of gear includes noise diagnosis method, vibration diagnosis method and shock pulse (SPM) diagnosis method, the most commonly used vibration diagnosis method. The same time as

Zhenping diagnostic method is the use of gear vibration intensity to determine whether the gear is in the normal working state of the diagnostic method. According to the determination of indicators and standards, but also can be divided into absolute value determination and relative value determination method.