What are the structural designs of wheel and chain materials?
1. The tooth profile of the sprocket must ensure that the chain can enter and exit meshing smoothly and freely, minimize the impact and contact stress of the chain link during meshing, and be easy to process. The commonly used sprocket end face tooth profile is composed of three arcs and a straight line, which is referred to as three arc-straight line teeth. The tooth shape is processed with standard tools. It is not necessary to draw the end face tooth shape on the working drawing of the sprocket. It is only necessary to indicate "the tooth shape is manufactured according to 3RGB1244-85" on the drawing, but the axial surface tooth shape of the sprocket should be drawn.
2. Sprocket structure, small-diameter sprockets are generally made of integral type, medium-diameter sprockets are mostly made of spoke type, in order to facilitate handling, clamping and weight reduction, holes are opened on the spoke plate, and large-diameter sprockets can be made into Combined type, the ring gear and wheel core can be made of different materials, such as C45, stainless steel and other materials.
