An automatic compensation drum brake comprises a drum cover, a rocker arm, a cam shaft, a first one-way bearing set, a second one-way bearing set, a brake shoe and a return spring of the brake shoe, the brake shoe is connected and arranged in the drum cover, and the cam shaft is provided with the first one-way bearing set and the second one-way bearing set and connected with the rocker arm through the first one-way bearing set. The second one-way bearing set is connected with the drum cover and abuts against the brake shoe. The two sets of one-way bearings are classically applied, the gap between forward rotation and reverse non-return of the one-way bearings is ingeniously utilized, automatic compensation is achieved in a limited space, and the brake drum is simple, reliable, small in production difficulty and low in cost. Manual adjustment is not needed, all brake pads of the shoe blocks can be completed, waste is avoided, and the service life of the shoe blocks is prolonged.
一种自动补偿鼓刹包含鼓盖,摇臂,凸轮轴,单向轴承一组,单向轴承二组,刹车蹄块及其归位弹簧,所述刹车蹄块连接安置在鼓盖内,所述凸轮轴上设置单向轴承一组和单向轴承二组,通过单向轴承一组连接摇臂,通过单向轴承二组连接鼓盖并抵接刹车蹄块,本发明经典运用了两组单向轴承,巧妙利用单向轴承正向转动和反向逆止间的间隙,在有限空间做到了自动补偿,简单可靠,生产难度小,成本低;本发明不需要人工调整,蹄块刹车皮可以全部也完,不会浪费,蹄块寿命增加。
Automatic compensation drum brake
自动补偿鼓刹
2022-01-07
Patent
Electronic Resource
Chinese