Casting of gear rings and gears and how to repair damaged gear rings?

Large gear rings are important and indispensable parts of equipment, just like gears. Although the two are similar, their main function is to transmit and change the direction of force. However, in addition to this, the protection of the main body of the machine system by the drive of the gear ring cannot be ignored.
The outer teeth of the large gear ring are divided into two types of tooth shapes: drum teeth and straight teeth. It can change the contact conditions of the teeth and improve the ability to transmit torque, thereby meeting the requirements of cost protection and extending the service life. The large gear ring is a thin-walled ring forging. It is easy to have problems such as uneven wall thickness, folding, and ellipse during the forging process. Therefore, the quality of the casting can be improved by controlling the details of the casting process.
Therefore, it can be said that the large gear ring is a very important component for protecting the service life of the machine. So when the large gear is damaged, how should we repair it?

First, the steel castings should be processed. Different processing methods should be used for large gears with different degrees of damage, and the damaged parts of the large gear ring should be processed;

Then, welding should be carried out. Before welding, it should be noted that there should be no impurities such as dirty oil, rust, slag, etc. near the welding part, otherwise it will affect the welding effect;

After the welding treatment, there may still be relatively small pores or sand holes on the surface of the steel casting. After removing these defects, the area should be repaired.

After the welding treatment, the damaged large gear ring can be used normally again, which not only saves the production cost of the enterprise, but also helps to reduce the loss of resources, which can be said to kill two birds with one stone.