The invention discloses a novel rear axle of an electric vehicle. Two end covers (8) are arranged at the two ends of a shell (1) through bolts (19), a rotor sleeve (5) and rectangular magnets (6) are arranged at the outer circle end of the rotor sleeve (5) at equal intervals to form a rotor, a 12-pole rectangular winding coil (3) is arranged in a winding-free silicon steel sheet (2) to form a stator, a differential mechanism (10) is fixedly arranged in the middle in the rotor, and two motor shafts (4) are connected to the two ends of the differential mechanism (10). The star-shaped speed reducers (21) are fixedly arranged in the two ends of the shell (1) and connected with the two rotating shafts (20), spline shafts are arranged at the two inner ends of the half shafts (16), and spline holes (9) are formed in the inner middles of the outer sides of the two rotating shafts (20) and movably connected with the two spline shafts. Due to the fact that the differential mechanism and the star-shaped speed reducer are integrated in a motor embedded mode, the transverse pulling force of output power of the motor is canceled, the service life of a bearing is prolonged by multiple times, the size is small, the weight is light, operation is stable, noise is low, the acting efficiency is high, the endurance mileage is long, and the energy-saving effect is achieved.
本发明公开了一种电动车新型后桥。其两端盖(8)用螺栓(19)设置在机壳(1)两端,转子套(5)和矩形磁铁(6)等距排列设置在转子套(5)外圆端组成转子,12极矩形绕组线圈(3)置于无绕组硅钢片(2)内组成定子,差速器(10)固定设置在转子内中部,两电机轴(4)连接在差速器(10)两端,星型减速器(21)固定设置在在机壳(1)两端内部,且和两旋转轴(20)连接,半轴(16)两内端设置花键轴,花键孔(9)设置在两旋转轴(20)外侧内中部,且和两花键轴活动连接。由于本发明的差速器和星型减速器采用电机内嵌式一体化,使电机输出动力的横向拉力取消,轴承寿命延长数倍,体积小重量轻,运行平稳,噪音小,做功效率高,续航里程远,从而达到了节能效果。
Novel rear axle of electric vehicle
一种电动车新型后桥
2021-05-25
Patent
Electronic Resource
Chinese