A Transmission system of vertical gear and multi-stage flat gear

摘要

PURPOSE: A shifting apparatus for a vertical gear in a multistage flat groove gear is provided to shift completely and promptly by moving the vertical gear in the multistage flat groove gear regardless of friction from foreign matters, and to lengthen a life span by preventing damage of the gear. CONSTITUTION: A shift operating unit(3) is fastened by a fixing pin(11) for restricting the axial movement of the vertical gear at absence of shift command, and a shift contact unit(4) is separated from a shift sill of a multistage flat recess gear(1). The fixing pin is eliminated in shifting, and the shift contact unit is moved. A first contact part of the shift contact unit is contacted to the shift sill of the multistage flat recess gear, and a second contact part is engaged with the shift operating unit. Shifting is performed with moving the shift operating unit according to rotation direction of the multistage flat recess gear. The life span of the shift system is extended with preventing damage against overload.