关键词: 中间轴；变速器；热装对齿；快速换产

Abstract: The countershaft is one of the core components of the transmission, which requires high accuracy and is difficult to assemble. Hot fitting process is widely used in the industry to gears assembly. However, how to ensure accuracy while being compatible with multiple models and achieve rapid production change. It has long been an industry challenge. In response to this problem, the article has developed a set of high-precision hot-fit-tooth methods and mechanisms for highly flexible countershaft, which has been applied to batch production. It ensures accuracy while being compatible with multiple models, and achieves rapid production change, and is suitable for highly flexible automated production lines. This article provides a detailed introduction of this process method and mechanism for reference in the same industry.

Key words: Countershaft; Transmission; Hot-fit-tooth; Rapid production change