The invention relates to the technical field of electric vehicle drum brakes, and discloses a drum brake type electric vehicle brake device which comprises a bottom plate and a brake drum, a positioning mounting block is arranged on the outer side of the bottom plate, the brake drum is of a circular ring structure, and a positioning ring groove matched with the brake drum is formed in the edge position of one end of the front face of the bottom plate. The brake drum is limited by the positioning ring groove to slide; according to the drum brake type electric vehicle braking device, a first transmission shaft is arranged to drive a hinged cam to pull a first hinged rod to rotate, then the first hinged rod is driven to pull a braking cam to rotate, and the braking cam extrudes and pushes an arc-shaped protruding block attached to the outer side of the braking cam; therefore, the mounting shoe and the brake shoe are driven to be close to the inner side of the brake drum integrally, a plurality of groups of brake pads on the outer side of the brake shoe can perform friction braking on the inner side of the brake drum simultaneously, an existing drum brake structure is optimized, and the service life of the brake pads is prolonged.
本发明涉及电动车鼓刹技术领域,公开了一种鼓刹式电动车制动装置,包括底板和制动鼓,所述底板的外侧设置有定位安装块,所述制动鼓为圆环结构,且底板正面一端的边缘位置处设置有与制动鼓相适配的定位环槽,所述制动鼓受到定位环槽的限位进行滑动;该鼓刹式电动车制动装置,通过设置有第一传动轴带动铰接凸轮拉动第一铰接杆转动,进而带动第一铰接杆拉动制动凸轮进行旋转,通过制动凸轮对其外侧贴合的弧形凸块进行挤压推动,从而带动安装蹄片、制动蹄片整体向制动鼓的内侧靠近,使得制动蹄片外侧的若干组刹车片能够同时对制动鼓的内侧进行摩擦制动,优化了现有的鼓刹制动结构,并延长了刹车片的使用寿命。
Drum brake type electric vehicle braking device
一种鼓刹式电动车制动装置
2024-09-06
Patent
Electronic Resource
Chinese
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