自助风冷型制动鼓制动性能试验研究  

Experimental Study on A New Type of Air-cooled Brake Drum's Braking Performance

作　　者：赵悟[1] 杜木伟[1] 刘晨敏[1] 沈建军[1] 于宥源[1] 

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室

出　　处：《汽车技术》2013年第3期25-28,共4页Automobile Technology

摘　　要：介绍了新型风冷式制动鼓的结构和降温机理。针对新型风冷式制动鼓和原车制动鼓,在JF122C惯性制动试验台上进行了制动鼓温升、制动力矩和转速对比试验,并分析了钻小孔后的新型制动鼓的强度和刚度。试验结果表明,与原车制动鼓相比,新型风冷式制动鼓平均最高温度降低约15℃,平均制动力矩没有明显改变,制动初始转速及下降趋势一致,强度和刚度也未下降。即新型制动豉在保证制动安全性的前提下,较好地改善了制动系统的散热性能。The structure and cooling mechanisms of a new type of air-cooled brake drum are introduced. Contrast test of temperature rising, brake torque and rotation speed are conducted by the inertia brake tester JF122C between the new type of air-cooled brake drum and the original brake drum. Meanwhile the strength and stiffness of the holes--drilled new type one are analyzed. The result of the contrast test proves that, compared with the original, the average maximum temperature of the new type of air-cooled brake drum is reduced by about 15 ℃, its average brake torque doesn＇t change much, and the initial revolving speed and declining trend of every test are alike, the strength and stiffness degrade little, i.e the new type of brake drum greatly improves heat radiating performance of the brake system while maintaining braking sfifety.

关 键 词：制动鼓 风冷 制动性能 

分 类 号：U463.55[机械工程—车辆工程]