METHOD FOR MANUFACTURING PULLEY SHAFT FOR BELT TYPE STEPLESS SPEED CHANGE DEVICE

• Main Author: OSHIMA SHUNSUKE
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; FORGE FURNACES; FORGING; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAMMERING; HEATING; LIGHTING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To fill a material to a parking gear in a finishing process in which a pulley part and a parking gear are formed in a pulley shaft for a stepless speed change device which manufactures a shaft, a conical pulley part, and a parking gear provided on a back side of the conical pulley part integrally.SOLUTION: Immediately before a finishing process in which a conical pulley part 120 and a parking gear 130 are formed, a preparation process, in which a conical pulley preparation part 14c having an apex angle θ1 smaller than an apex angle θ3 of a cone of the pulley part 120 is formed, is performed.SELECTED DRAWING: Figure 1 【課題】軸部と、円錐状プーリ部と、円錐状プーリ部の背面側に配設されるパーキングギヤとを一体的に鍛造で製造する無段変速機用プーリシャフトにおいて、プーリ部とパーキングギヤとを形成する仕上げ工程で、パーキングギヤ部へ材料を充満させる。【解決手段】円錐状のプーリ部１２０とパーキングギヤ１３０とを形成する仕上げ工程の直前に、プーリ部１２０の円錐の頂角θ３よりも小さい頂角θ１を備えた円錐状のプーリ準備部１４ｃを形成する準備工程を実施する。【選択図】図１