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A theoretical model of stress distribution and contact width is established by Hertz contact theory. The reaction of roller under specific load is analyzed. The results shows that linear profile have significant edge contact stress concentration, which increases with the increase of load. The roller with logarithmic profile can solve the stress concentration, but it can't completely eliminate it. Under the same load, with the increase of the bias factor, the maximum contact stress of the roller decreases sharply at first and then increases slowly. The position where the maximum contact stress occurs shifts from both ends of the roller to the middle of the roller. The profile design of roller with logarithmic type can take a value between 1.0 and 2.5 for the bias factor based on working conditions, roller size and load conditions. The value of bias factor is adaptive to tilt error and the impact of tilt error on contact stress can be reduced by setting a reasonable value.
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利用Hertz接触理论建立计算滚子的应力分布和接触宽度理论模型,分析滚子在特定载荷下的反应。研究结果表明:直线型滚子具有明显的应力集中现象并随着载荷增大而加剧;对数曲线型滚子能解决应力集中现象,但不能完全消除;在同一载荷下,随着偏载系数的增加,滚子的最大接触应力先急剧减小后缓慢增加,最大接触应力出现的位置由滚子两端转移到滚子的中部;对数曲线型滚子的形状可根据工况、滚子尺寸及载荷条件来设计,对偏载系数在1.0~2.5之间取值;偏载系数的取值对倾斜误差有适应性,可通过设置合理的偏载系数来减小倾斜误差对接触应力的影响。
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, authorsList=黄襄茂)}, authors=[Author(id=1207748678287200538, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=fjauhxm@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1207748678383669535, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, authorId=1207748678287200538, language=EN, stringName=Xiangmao HUANG, firstName=Xiangmao, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Technical Center, Zhejiang Fine-Motion Robot Joint Technology Co, Ltd, Taizhou 317600, Zhejiang, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1207748678492721444, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, authorId=1207748678287200538, language=CN, stringName=黄襄茂, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=浙江环动机器人关节科技股份有限公司 技术中心,浙江 台州 317600, bio={"content":"
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黄襄茂(1987—),男,工程师,硕士。E-mail:fjauhxm@126.com
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The structure of RV reducer, figureFileSmall=Oh49YI5dAVzf17ovuChh3g==, figureFileBig=liHKTLCj5koKEW6zE3+wUQ==, tableContent=null), ArticleFig(id=1207748679847481690, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图1, caption=
RV减速机结构, figureFileSmall=Oh49YI5dAVzf17ovuChh3g==, figureFileBig=liHKTLCj5koKEW6zE3+wUQ==, tableContent=null), ArticleFig(id=1207748679956533599, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.2, caption=
Geometry of tapered roller bearing, figureFileSmall=6siKbojLswchRMacVNXcQw==, figureFileBig=MvWkPgw6VVxTgV8ihk2OrQ==, tableContent=null), ArticleFig(id=1207748680053002595, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图2, caption=
圆锥滚子轴承的几何描述, figureFileSmall=6siKbojLswchRMacVNXcQw==, figureFileBig=MvWkPgw6VVxTgV8ihk2OrQ==, tableContent=null), ArticleFig(id=1207748680145277288, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.3, caption=
Line contact, figureFileSmall=ewtyZzw2ndJ9eexk+82Kyw==, figureFileBig=OJo7iUShE5cfb4hNnkgetQ==, tableContent=null), ArticleFig(id=1207748680224969067, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图3, caption=
线接触, figureFileSmall=ewtyZzw2ndJ9eexk+82Kyw==, figureFileBig=OJo7iUShE5cfb4hNnkgetQ==, tableContent=null), ArticleFig(id=1207748680321438062, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.4, caption=
Stress distribution of contact element, figureFileSmall=xS/fh60wDW3oLExsop/XEw==, figureFileBig=UcM/Tc4JXexy5JartqYrTA==, tableContent=null), ArticleFig(id=1207748680405324143, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图4, caption=
接触单元的应力分布, figureFileSmall=xS/fh60wDW3oLExsop/XEw==, figureFileBig=UcM/Tc4JXexy5JartqYrTA==, tableContent=null), ArticleFig(id=1207748680480821616, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.5, caption=
Contact stress distribution of roller, figureFileSmall=47+cwCd5OZXMJEGFVTp32g==, figureFileBig=elOjQ3YcBUTYuH1Iq5AEFw==, tableContent=null), ArticleFig(id=1207748680539541875, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图5, caption=
直线型滚子的接触应力分布, figureFileSmall=47+cwCd5OZXMJEGFVTp32g==, figureFileBig=elOjQ3YcBUTYuH1Iq5AEFw==, tableContent=null), ArticleFig(id=1207748681760084342, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.6, caption=
Contact width of roller, figureFileSmall=VuRz7YNG1KIuxAbrFybZZQ==, figureFileBig=hYffMLLYtghTxOyqftrQbA==, tableContent=null), ArticleFig(id=1207748681831387511, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图6, caption=
直线型滚子的接触宽度分布, figureFileSmall=VuRz7YNG1KIuxAbrFybZZQ==, figureFileBig=hYffMLLYtghTxOyqftrQbA==, tableContent=null), ArticleFig(id=1207748681890107769, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.7, caption=
Contact stress distribution of roller, figureFileSmall=TZ/5fjzIHtrpqZpIR7etSA==, figureFileBig=liW2hAAAIJcYArRKc0qNsA==, tableContent=null), ArticleFig(id=1207748681961410940, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图7, caption=
对数曲线型滚子的接触应力分布, figureFileSmall=TZ/5fjzIHtrpqZpIR7etSA==, figureFileBig=liW2hAAAIJcYArRKc0qNsA==, tableContent=null), ArticleFig(id=1207748682041102719, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.8, caption=
Contact width of roller, figureFileSmall=9bSOIo5MKqkYjI7hsPpPvA==, figureFileBig=+bKfuj0Ff1CpfCYa1gp7Og==, tableContent=null), ArticleFig(id=1207748682095628673, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图8, caption=
对数曲线型滚子的接触宽度分布, figureFileSmall=9bSOIo5MKqkYjI7hsPpPvA==, figureFileBig=+bKfuj0Ff1CpfCYa1gp7Og==, tableContent=null), ArticleFig(id=1207748682154348932, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.9, caption=
The influence of bias factor on contact stress, figureFileSmall=R8HihCw3ya1jt/ZskjLznQ==, figureFileBig=SIzayuoH1i+Fbuz/AbOdRQ==, tableContent=null), ArticleFig(id=1207748682221457798, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图9, caption=
偏载系数对接触应力的影响, figureFileSmall=R8HihCw3ya1jt/ZskjLznQ==, figureFileBig=SIzayuoH1i+Fbuz/AbOdRQ==, tableContent=null), ArticleFig(id=1207748682271789448, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.10, caption=
The influence of bias factor on maximum contact stress, figureFileSmall=aFXB6dg68vsonaA7eGxd1A==, figureFileBig=f2uZLR1u7sO7MkpLX7lSfQ==, tableContent=null), ArticleFig(id=1207748682347286923, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图10, caption=
偏载系数对最大接触应力的影响, figureFileSmall=aFXB6dg68vsonaA7eGxd1A==, figureFileBig=f2uZLR1u7sO7MkpLX7lSfQ==, tableContent=null), ArticleFig(id=1207748682406007182, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.11, caption=
Stress distribution under tilt error, figureFileSmall=BGj1ZNk8melSxEA8JiyLAw==, figureFileBig=BFct8ACicx1WgVXrq5m3Bw==, tableContent=null), ArticleFig(id=1207748682477310352, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图11, caption=
倾斜误差下的应力分布, figureFileSmall=BGj1ZNk8melSxEA8JiyLAw==, figureFileBig=BFct8ACicx1WgVXrq5m3Bw==, tableContent=null), ArticleFig(id=1207748682561196434, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Fig.12, caption=
The influence of bias factor on stress distribution under tilt error, figureFileSmall=KbYNipBKbknzaoBcBXMWZg==, figureFileBig=nFaL5FHo/n3JZyzYIM/EAQ==, tableContent=null), ArticleFig(id=1207748682657665426, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=图12, caption=
倾斜误差下载荷系数对接触应力分布影响, figureFileSmall=KbYNipBKbknzaoBcBXMWZg==, figureFileBig=nFaL5FHo/n3JZyzYIM/EAQ==, tableContent=null), ArticleFig(id=1207748682724774292, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=EN, label=Tab.1, caption=
The trend of stress value
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况编号 | 载荷/N | 应力差/MPa |
|---|
| 1 | 653.5 | 308.2 |
| 2 | 753.5 | 338.3 |
| 3 | 1 059.8 | 424.3 |
| 4 | 1 160.8 | 451.1 |
), ArticleFig(id=1207748682829631895, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658078607090449, language=CN, label=表1, caption=
应力差值趋势
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况编号 | 载荷/N | 应力差/MPa |
|---|
| 1 | 653.5 | 308.2 |
| 2 | 753.5 | 338.3 |
| 3 | 1 059.8 | 424.3 |
| 4 | 1 160.8 | 451.1 |
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