A 5-ton-class circulating ball type dual-mode electric power steering device

The invention relates to the field of electromechanical systems and motor vehicle application, and in particularly relates to a 5-ton-class circulating ball type dual-mode electric power steering device. The electric power steering device comprises a steering device housing assembly, an input shaft and screw assembly, a sector shaft assembly, a supporting base assembly, a turbine, a worm, an inner end cap assembly, a rotating angle and torque sensor, an outer end cap assembly, a plum connecting sleeve assembly and a motor assembly. A motor serves as a power source; power is transmitted to the input shaft and screw assembly via a worm gear and the worm, and the input shaft and screw assembly outputs torque and angle displacement via a sector shaft. The 5-ton-class circulating ball type dual-mode electric power steering device has two control modes of angle (position) and torque (assisting power). 本发明属于机电系统及机动车应用领域，具体涉及种5吨级循环球式双模电动动力转向装置。所述电动动力转向器包括转向器壳体总成、输入轴与螺杆总成、齿扇轴总成、支撑座总成、涡轮、蜗杆、内端盖总成、转角转矩传感器、外端盖总成、梅花连接套总成、