Jixie chuandong (Jan 2019)
Study on Heat Treatment Distortion of Hypoid Gear and Contact Zone Influence
Abstract
Hypoid gear is one of the important parts of the main reducer,its degree of tooth profile distortion directly affects the tooth surface error and the quality and consistency of the gear contact area. In order to solve the problem of uncontrolled heat treatment of gears,the distortion mechanism of gear heat treatment is studied. The 45-point topology grid error is used to analyze the law of contact zone offset. Using the special bevel gear detection equipment Gleason GMM350 and 600 HTT roller inspection machine as the carrier,by comparing the variation of the tooth surface accuracy and the offset of the contact mark before and after the heat treatment of the gear,the correctness of the theoretical analysis result of the contact zone shift is verified. The correctness of the contact zone offset theory,and experiments show that the gear heat treatment contact zone moves from the large end slightly to the tooth tip position to the middle of the tooth face.
