滚磨光整对齿轮表面完整性和性能的影响  

Effect of Roll Finishing on Surface Integrity and Performance of Gear

作　　者：侯圣文 谭靓[2] 钟华 雷其平 卫少帅 董凡 HOU Shengwen;TAN Liang;ZHONG Hua;LEI Qiping;WEI Shaoshuai;DONG Fan(Shaanxi Key Laboratory of Gear Transmission,Shaanxi Fast Gear Co.,Ltd.,Xi'an 710077,China;Key Laboratory of High Performance Manufacturing for Aero Engine Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]陕西法士特齿轮有限责任公司陕西省齿轮传动重点实验室,西安710077 [2]西北工业大学航空发动机高性能制造工业和信息化部重点实验室,西安710072

出　　处：《机械科学与技术》2024年第6期1024-1030,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：陕西省重点研发计划(2021ZDLGY10-06,2021ZDLGY12-03)。

摘　　要：以某型号重型卡车十二挡变速器斜齿轮为研究对象,研究了滚磨光整加工对齿轮表面粗糙度、表面形貌、显微硬度和残余应力的影响,获得了滚磨光整前后变速器传动效率和整箱噪声。试验结果表明,滚磨光整后齿面表面粗糙度R_(a)从0.815μm下降到0.317μm,由喷丸强化加工产生的表面弹坑痕迹消失,表面形貌均匀一致。齿面显微硬度和残余压应力显著提升,表面残余压应力均超过1000 MPa,滚磨光整对齿面下深度大于0.02 mm的残余压应力无强化作用。滚磨光整后变速器综合传动效率提升约0.54%,平均噪声下降1~3 dB(A)。Taking the helical gear in the twelfth transmission of a heavy truck as the object,the effect of the roll finishing on the surface roughness,surface topography,microhardness,and residual stress of gearwereinvestigated,and the transmission efficiency and noise of the unpolished and polished transmission were obtained and compared.Results show that the tooth surface roughness R_(a)of gear decreases from 0.815 to 0.317μm,the surface crater marks treated by shot peening disappear,and the surface topography is uniform.The surface microhardness and residual stress of the tooth surface are improved significantly,and the surface residual compressive stress exceeds 1000 MPa.The residual compressive stresswith a depth greater than 0.02 mm cannot be enlarged by roll finishing.After roll finishing,the comprehensive transmission efficiency is increased by 0.54%approximately,and the average noise value is reduced by about 1-3 dB(A).

关 键 词：滚磨光整 齿轮 表面粗糙度 残余应力 传动效率 

分 类 号：TG156[金属学及工艺—热处理]