Internal thread stretching type circumferential pull rod for gas turbine rotor and design method of internal thread stretching type circumferential pull rod

• Main Authors: GONG JUNJUN, GAO JIN, HUANG TAO, KONG XIANGLIN, CHEN XIAOPING, LU LIN, ZHAO SHIZHI, QU JIANGJI, AI SONG, CHENG LU, FANG YU, FENG GUOYI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a gas turbine rotor internal thread stretching type circumferential pull rod and a design method of the gas turbine rotor internal thread stretching type circumferential pull rod, and relates to the field of gas turbines, in particular to a gas turbine rotor internal thread stretching type circumferential pull rod and a design method of the gas turbine rotor internal thread stretching type circumferential pull rod. The diameter of the two end parts of the pull rod is larger than that of the middle part of the pull rod; the outer vertical face of the conical nut is conical, the conical nut comprises a large-diameter end and a small-diameter end, the conical nut is connected to the outer threads of the pull rod in a sleeved mode, and the small-diameter end is close to the side face of the wheel disc. 本发明公开了一种燃气轮机转子内螺纹拉伸式周向拉杆及其设计方法，本发明涉及燃气轮机领域，具体涉及一种燃气轮机转子内螺纹拉伸式周向拉杆及其设计方法，包括：拉杆和锥形螺母，拉杆两端部设置有外螺纹，且拉杆两端部直径大于拉杆中部直径，拉杆拉伸侧设计有拉伸工艺孔；锥形螺母外立面呈锥形，包括大直径端和小直径端，锥形螺母套接于拉杆外螺纹处，且小直径端靠近轮盘侧面，其好处在于：可以减小燃气轮机拉