The invention belongs to the technical field of auxiliary braking of heavy-duty vehicles, and relates to an air-cooling type permanent magnet retarder capable of automatically adjusting braking torque, which comprises a stator, a first permanent magnet and a second permanent magnet, and is characterized in that the stator comprises a first conductor cylinder and a conductor cylinder bracket fixed on a vehicle, and the first conductor cylinder is nested in the conductor cylinder bracket; the transmission shaft comprises an outer spline shaft and a spring; the outer spline shaft penetrates through the first conductor cylinder, a gap capable of containing a permanent magnet rotor is reserved between the outer spline shaft and the first conductor cylinder, and the outer spline shaft is sleeved with the spring. And the permanent magnet rotor is arranged on the outer spline shaft in a sleeving manner, and can move into the gap in the axial direction of the outer spline shaft and abut against the spring. The beneficial effects are that the permanent magnet rotor can automatically adjust the depth of the permanent magnet rotor entering the stator according to the braking acceleration of the vehicle and the forward inclination angle of the vehicle body so as to realize the automatic adjustment of the braking torque.
本发明属于重载车辆辅助制动技术领域,涉及一种风冷型自动调节制动力矩的永磁缓速器,包括:定子,所述定子包括第一导体筒和固定于车辆的导体筒支架,所述第一导体筒嵌套于所述导体筒支架内;传动轴,所述传动轴包括外花键轴和弹簧;所述外花键轴穿过所述第一导体筒且与所述第一导体筒之间留有能够容纳永磁体转子的间隙,所述弹簧套设于所述外花键轴上;永磁体转子,所述永磁体转子套设于所述外花键轴上,且能够沿所述外花键轴的轴向运动至所述间隙内并抵压所述弹簧。其有益效果是,永磁体转子能够根据车辆的制动加速度和车身向前倾斜的角度自动调节进入定子的深度,以实现制动转矩的自动调节。
Air-cooled permanent magnet retarder capable of automatically adjusting braking torque
一种风冷型自动调节制动力矩的永磁缓速器
2023-12-05
Patent
Electronic Resource
Chinese
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