The invention relates to an internal circulation cooling type coaxial motor axle assembly which comprises an axle shell, a differential mechanism arranged in the axle shell, a first output half shaft connected to one end of the differential mechanism and a driving motor connected to the outer portion of the axle shell, a motor rotating shaft of the driving motor is of a tubular structure and arranged on the first output half shaft in a sleeving mode, and one end of the motor rotating shaft extends into the axle shell. The assembly further comprises a circulating pump, which is used for enabling a cooling medium to circulate between a heat exchanger and a lubricating oil heat absorption cavity; the heat exchanger; and a lubricating oil heat dissipation cavity, which is arranged on the first output half shaft in a sleeving manner and is arranged on the lubricating oil heat dissipation cavity in a sleeving manner. The other end of the motor rotating shaft penetrates into the lubricating oil heat dissipation cavity and is in butt joint with a centrifugal air suction cylinder. The internal circulation cooling type coaxial motor axle assembly has the advantage that lubricating oil circulates in the axle to be cooled, and the problem that the viscosity of the lubricating oil and the quality of the lubricating oil are affected due to the fact that the lubricating oil flows through a long path when the lubricating oil is led out of the axle to be cooled in the prior art is solved.
本发明涉及一种内循环冷却式同轴电机车桥总成,包括车桥壳体、设置在车桥壳体内的差速器、连接在差速器一端的第一输出半轴和连接在车桥壳外部的驱动电机,驱动电机的电机转轴为管状结构且套设在第一输出半轴上,电机转轴的一端伸入车桥壳体内;本发明还包括用于使冷却介质在热交换器和润滑油吸热腔之间循环循环泵、热交换器、套设在第一输出半轴上的润滑油散热腔和套设在润滑油散热腔上的润滑油吸热腔,电机转轴的另一端穿设到润滑油散热腔内且同离心抽气筒对接在一起。本发明具有润滑油在车桥内部进行循环而进行冷却的优点,解决了现有的润滑油引出车桥进行冷却所导致的润滑油流过的路线长会影响油的粘度而影响润滑油的品质的问题。
Internal circulation cooling type coaxial motor axle assembly
内循环冷却式同轴电机车桥总成
2021-09-28
Patent
Elektronische Ressource
Chinesisch