Article(id=1309475231455085403, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475230712685474, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20250283, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790132824052, onlineDateStr=2026-09-23, pubDate=1773936000000, pubDateStr=2026-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132824052, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132824052, creator=13701087609, updateTime=1790132824052, updator=13701087609, issue=Issue{id=1309475230712685474, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='3', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1773936000000', pubDateStr='2026-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1790132823875, creator='13701087609', updateTime=1790133020391, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309476055044423710, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475230712685474, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309476055044423711, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475230712685474, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=25, endPage=33, ext={EN=ArticleExt(id=1309475231752880988, articleId=1309475231455085403, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on Thermal Sleeve Assembly Process and Equipment for New Enerqy Vehicle Motor Stator Core and Shell, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To optimize the thermal shrink fitting process of the stator core and housing in new energy electric drive systems and improve the qualification rate of thermal shrink fitting, a systematic study is conducted on key issues such as heating temperature, assembly accuracy, heating uniformity, and core rebound in the process. The results show that after housing heating, changes in the positioning hole spacing due to "thermal-structural coupling" led to axis offset, and a diamond pin positioning compensation scheme is proposed. By optimizing the heating process and Proportional-Integral-Derivative (PID) control, heating uniformity is improved. The stress-strength interference model is applied to verify the reliability of the assembly gap. In response to core rebound, the dwell time is optimized, and spray cooling is introduced, effectively enhancing cooling efficiency and dimensional stability. Practice has shown that the related measures significantly improve the qualification rate and production efficiency of the assembly process.

, authors=Zenghui Ding1, Hang Zhao1, Lei Dong1, Jiaming Zhao1, Xintai Ding2, authorsList=Zenghui Ding, Hang Zhao, Lei Dong, Jiaming Zhao, Xintai Ding, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309475232189088605, articleId=1309475231455085403, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=新能源汽车电机定子铁芯与壳体热套装配工艺及设备研究, columnId=1190284220841955836, journalTitle=汽车工艺与材料, columnName=生产现场, runingTitle=null, highlight=null, articleAbstract=

为优化新能源汽车电机定子铁芯与壳体的热套装配工艺,提高热套装配合格率,系统研究了电机定子铁芯与壳体的热套装配工艺的加热温度、装配精度、加热均匀性及铁芯回弹等关键问题。研究发现,壳体加热后因“热-结构耦合”导致定位孔间距变化,使轴线偏移,提出了菱形销定位补偿方案;通过优化加热工艺与比例-积分-微分(PID)控制,提升了加热均匀性;应用应力-强度干涉模型验证了装配间隙可靠性;针对铁芯回弹,优化保压时间并引入喷雾冷却,有效提升了冷却效率与尺寸稳定性。实践表明,相关措施显著提高了装配合格率与生产效率。

, authors=丁增辉1, 赵航1, 董雷1, 赵佳铭1, 丁新泰2, authorsList=丁增辉, 赵航, 董雷, 赵佳铭, 丁新泰, authorCompany=null, correspAuthors=null, authorNote=

丁增辉(1987—),男,工程师,学士学位,研究方向为智能制造。

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新能源汽车电机定子铁芯与壳体热套装配工艺及设备研究
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丁增辉 1 , 赵航 1 , 董雷 1 , 赵佳铭 1 , 丁新泰 2
汽车工艺与材料 | 生产现场 2026,(3): 25-33
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汽车工艺与材料 |生产现场 2026 , (3) : 25 -33
新能源汽车电机定子铁芯与壳体热套装配工艺及设备研究
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丁增辉1, 赵航1, 董雷1, 赵佳铭1, 丁新泰2
作者信息
  • 1.一汽模具制造有限公司,长春 130013
  • 2.武汉理工大学,武汉 430063
作者简介:

丁增辉(1987—),男,工程师,学士学位,研究方向为智能制造。

Research on Thermal Sleeve Assembly Process and Equipment for New Enerqy Vehicle Motor Stator Core and Shell
Zenghui Ding1, Hang Zhao1, Lei Dong1, Jiaming Zhao1, Xintai Ding2
Affiliations
  • 1.FAW Tooling Die Manufacturing Co., Ltd., Changchun 130013
  • 2.Wuhan University of Technology, Wuhan 430063
出版时间: 2026-03-20 doi: 10.19710/J.cnki.1003-8817.20250283
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为优化新能源汽车电机定子铁芯与壳体的热套装配工艺,提高热套装配合格率,系统研究了电机定子铁芯与壳体的热套装配工艺的加热温度、装配精度、加热均匀性及铁芯回弹等关键问题。研究发现,壳体加热后因“热-结构耦合”导致定位孔间距变化,使轴线偏移,提出了菱形销定位补偿方案;通过优化加热工艺与比例-积分-微分(PID)控制,提升了加热均匀性;应用应力-强度干涉模型验证了装配间隙可靠性;针对铁芯回弹,优化保压时间并引入喷雾冷却,有效提升了冷却效率与尺寸稳定性。实践表明,相关措施显著提高了装配合格率与生产效率。

热套装配  /  加热工艺  /  冷却速率  /  应力-强度干涉模型  /  热-结构耦合

To optimize the thermal shrink fitting process of the stator core and housing in new energy electric drive systems and improve the qualification rate of thermal shrink fitting, a systematic study is conducted on key issues such as heating temperature, assembly accuracy, heating uniformity, and core rebound in the process. The results show that after housing heating, changes in the positioning hole spacing due to "thermal-structural coupling" led to axis offset, and a diamond pin positioning compensation scheme is proposed. By optimizing the heating process and Proportional-Integral-Derivative (PID) control, heating uniformity is improved. The stress-strength interference model is applied to verify the reliability of the assembly gap. In response to core rebound, the dwell time is optimized, and spray cooling is introduced, effectively enhancing cooling efficiency and dimensional stability. Practice has shown that the related measures significantly improve the qualification rate and production efficiency of the assembly process.

Hot sleeve assembly  /  Heating process  /  Cooling rate  /  Stress-strength interference model  /  Thermal-structural coupling
丁增辉, 赵航, 董雷, 赵佳铭, 丁新泰. 新能源汽车电机定子铁芯与壳体热套装配工艺及设备研究. 汽车工艺与材料, 2026 , (3) : 25 -33 . DOI: 10.19710/J.cnki.1003-8817.20250283
Zenghui Ding, Hang Zhao, Lei Dong, Jiaming Zhao, Xintai Ding. Research on Thermal Sleeve Assembly Process and Equipment for New Enerqy Vehicle Motor Stator Core and Shell[J]. Automobile Technology & Material, 2026 , (3) : 25 -33 . DOI: 10.19710/J.cnki.1003-8817.20250283

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doi: 10.19710/J.cnki.1003-8817.20250283
  • 首发时间:2026-09-23
  • 出版时间:2026-03-20
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    1.一汽模具制造有限公司,长春 130013
    2.武汉理工大学,武汉 430063
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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