Engagement point cushioning structure and escalator system

Abstract

This application relates to a buffer structure at the meshing point and an escalator system. The buffer structure at the meshing point includes a sprocket, a chain, a pin, and a buffer element. The sprocket includes a sprocket body and sprocket teeth. The sprocket teeth are fixed to the sprocket body and include staggered tooth tips and tooth roots. The chain is fitted onto the sprocket teeth and is connected by several chain plates; the pin passes through both sides of the sprocket body, and the protruding part has a shoulder; the buffer element is limited to the side of the sprocket body by the shoulder and is disposed at the tooth root, and the chain plate meshes with the tooth root through the buffer element. The sprocket teeth on the sprocket body are arranged with staggered tooth tips and tooth roots. When the chain plate meshes with the tooth root, it first contacts the annular buffer element disposed at the tooth root. The pin passes through both sides of the sprocket body, and the shoulders at both ends limit the buffer element to the side of the sprocket body. The impact force when the chain plate meshes with the tooth root is absorbed by the buffer element, and the shoulders prevent component wear caused by axial expansion of the buffer element, thereby improving structural stability.

Images