非光滑表面制动鼓及含碳量对磨损性能的影响机制  

The Mechanism of the Influence of Non-smooth Surface Brake Drum and Carbon Content on Wear Performance

作　　者：徐立友 王其远 张帅 杨海洋 周倜 XU Liyou;Wang Qiyuan;ZHANG Shuai;YANG Haiyang;ZHOU Ti(School of Vehicle and Traffic Engineering,Henan University of Science and Technology,Luoyang 471003,China;School of Mechanical and Electrical Engineering,Jiaxing Nanhu University,Jiaxing 314001,China;School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003 [2]嘉兴南湖学院机电工程学院,浙江嘉兴314001 [3]吉林大学机械与航空航天工程学院,吉林长春130025

出　　处：《河南科技大学学报(自然科学版)》2025年第2期31-41,M0004,共12页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家重点研发计划项目(2022YFD2001203);河南省重大科技专项项目(221100240400);国家农业重大专项项目(NK202216010401)。

摘　　要：为探究制动鼓与刹车片之间磨损量的变化,选取4种制动鼓试样开展两种热疲劳循环操作,筛选不同表面处理方式,非光滑表面硬度,碳的质量分数(含碳量)和石墨类型为设计变量,在磨损实验机上与半金属刹车片进行对磨实验。结果表明:单元体硬度值增加会加大制动鼓对刹车片的磨损程度,增碳单元体网格状试样对刹车片磨损最大,达到29.86 mg,提升119.5%。在实施表面处理之前,制动鼓试样磨损量与刹车片磨损量大致呈反比关系,C型石墨制动鼓对刹车片磨损最小,约13 mg。经过表面处理后,网格状单元体对刹车片磨损最大,达到27.2 mg,提升约100%。当母材含碳量达到3.41%时刹车片产生最小磨损约22 mg,与最大磨损时相比降低约9%,C型石墨制动鼓对刹车片磨损最大,达到约24.5 mg。To explore the changes in the wear amount between the brake drum and the brake pads,four types of brake drum specimens were selected to carry out two kinds of thermal fatigue cycle operations.Different surface treatment methods,the hardness of the non-smooth surface,the mass fraction of carbon(carbon content),and the type of graphite were screened as design variables,and a wear test was conducted on a wear tester by rubbing against semi-metallic brake pads.The results show that an increase in the hardness value of the unit cell will increase the wear degree of the brake drum on the brake pads.The grid-like specimen of the carbon-increasing unit cell causes the greatest wear on the brake pads,reaching 29.86 mg,which is a 119.5%increase.Before implementing the surface treatment,the wear amount of the brake drum specimens and the wear amount of the brake pads are roughly inversely proportional.The brake drum with C-type graphite causes the least wear on the brake pads,approximately 13 mg.After the surface treatment,the grid-like unit cell causes the greatest wear on the brake pads,reaching 27.2 mg,which is an increase of approximately 100%.When the carbon content of the base metal reaches 3.41%,the brake pads produce the least wear of approximately 22 mg,which is approximately 9%lower compared to the situation with the maximum wear.The brake drum with C-type graphite causes the greatest wear on the brake pads,reaching approximately 24.5 mg.

关 键 词：鼓式制动器 表面处理 磨损试验 热疲劳循环 磨损影响因素 

分 类 号：U463.5[机械工程—车辆工程]