The invention relates to the technical field of vehicle engineering, and provides a drive axle brake and a vehicle. An annular boss is formed in the axial middle of a brake drum, a heat dissipation hole is formed in the boss, an included angle is formed between the axis of the heat dissipation hole and the axis of the brake drum, and a first groove is formed in the inner circumferential wall of the brake drum; the heat dissipation holes penetrate through the brake drum, and one ends of the heat dissipation holes communicate with the first groove. The brake assembly is sleeved with the brake drum, a second groove is formed in the peripheral wall of the brake assembly, the first groove and the second groove are aligned to form a heat dissipation channel and meet the radial projection of the brake drum, and the two side walls, in the width direction, of the second groove are located between the two side walls, in the width direction, of the first groove. In this way, the brake drum and the brake assembly can have relatively good heat dissipation performance, and local overheating is avoided. Furthermore, along with the thinning of the friction plate, the two side walls in the width direction of the second groove can be inserted into the first groove, and the situation that the heat dissipation efficiency is reduced due to the fact that the heat dissipation channel is blocked is avoided.
本发明涉及车辆工程技术领域,提供了一种驱动桥制动器及车辆,制动鼓的轴向中部形成有环状的凸台,凸台开设有散热孔,散热孔的轴线与制动鼓的轴线呈夹角设置,制动鼓的内周壁开设有第一凹槽,散热孔贯穿制动鼓且其一端与第一凹槽连通;制动鼓套设于制动器总成外,制动器总成的外周壁开设有第二凹槽,第一凹槽与第二凹槽对齐形成散热通道,且满足于制动鼓的径向投影,第二凹槽的宽度方向的两侧壁位于第一凹槽的宽度方向的两侧壁之间。如此,使得制动鼓和制动器总成之间能够具备相对较好的散热性能,避免局部过热。进一步,随着摩擦片变薄,第二凹槽的宽度方向的两侧壁能够插设于第一凹槽内,避免散热通道的阻塞,导致散热效率降低。
Drive axle brake and vehicle
驱动桥制动器及车辆
2024-12-27
Patent
Electronic Resource
Chinese
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