With the rapid development of my country’s economic construction, especially the country’s increased investment in roads, railways, housing and water conservancy facilities, excavators have increasingly shown a huge role in national economic construction. The tooth seat of the excavator is used to install and fix the bucket teeth on the bucket floor of the excavator. The head of the tooth seat is inserted into the tooth cavity of the bucket tooth and fixed by a pin. The tail of the tooth seat is stuck in the bucket in the shape of a dovetail.

   On the bottom plate, due to the machining error, there is a phenomenon of looseness between the tooth seat and the bucket teeth and the bucket bottom plate. The impact during work is not only loud, but also after a long period of impact, the bucket teeth and the tooth seat are easy to fall off. Reduce the service life of bucket teeth and adapters.