Powder metallurgy drive gear

• Main Authors: XU SHUNFU, DUAN SHAOXIONG, NI MENGZHONG, LUO JUAN, LIU ZIWEI, XU SHENGXIONG, ZHANG QING
• Format: Patent
• Language: English
• Published: 02.12.2015
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to a gear, concretely relates to powder metallurgy drive gear. This drive gear include gear body that powder metallurgy made be provided with the teeth of a cogwheel on the circumference of gear body, the center part of gear body is provided with the centre bore, and the equipartition has the tooth's socket on the inner wall circumference of centre bore, is provided with the ring channel on the gear body of centre bore one end, the top shape of the teeth of a cogwheel is equidistance cycloid profile of tooth, and the root both sides of the teeth of a cogwheel are parallel straight line, and the height of teeth of a cogwheel root straight -line portion is 12 of teeth of a cogwheel height. This powder metallurgy drive gear matches through equidistance cycloid and parallel lines, makes tooth root thickness increase, makes transverse strength improve a lot from this, and through 4 contained angles that set up, make the surface of the work densifying of the teeth of a cogwheel can put forward the conquassation intensity that high tooth took turns between the terminal surface of teeth of a cogwheel terminal surface and gear body, improve the tired of sintered gear(s) and surperficial wear resistance to carry the life of high tooth wheel.