Article(id=1207658085515105236, tenantId=1146029695717560320, journalId=1205116883411038211, issueId=1207658076900008717, articleNumber=null, orderNo=null, doi=null, 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=1765857724789, onlineDateStr=2025-12-16, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765857724789, onlineIssueDateStr=2025-12-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765857724789, creator=13701087609, updateTime=1765857724789, updator=13701087609, issue=Issue{id=1207658076900008717, tenantId=1146029695717560320, journalId=1205116883411038211, year='2025', volume='23', issue='2', pageStart='189', pageEnd='376', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765857722735, creator=13701087609, updateTime=1765862348176, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1207677477451833566, tenantId=1146029695717560320, journalId=1205116883411038211, issueId=1207658076900008717, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1207677477451833567, tenantId=1146029695717560320, journalId=1205116883411038211, issueId=1207658076900008717, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=356, endPage=360, ext={EN=ArticleExt(id=1207658086135862264, articleId=1207658085515105236, tenantId=1146029695717560320, journalId=1205116883411038211, language=EN, title=Construction of pedal brake cam and stability analysis of output force, columnId=1207658078934246168, journalTitle=Chinese Journal of Construction Machinery, columnName=Performance Mensuration, Experimentation and Fault Diagnosis, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problems of incomplete balance equation, inaccurate balance equation and large error of cam contour caused by the influence of piston deflection on cam dynamic moment in existing cam construction of pedal brake unit, the structure of pedal brake cam and output force stability were studied. Firstly, the concept of optimum compensation angle is introduced, and the rotating moment of the thrust caused by piston deflection in two directions to the cam articulation point is included in the new balance equation, which makes the balance equation more complete, accurate and has less error. Based on this, a new cam mechanism is designed and constructed. Then, on the pedal brake unit routine tester, a comparative experiment is carried out on the stability of output force value between the original cam mechanism and the newly constructed cam mechanism with optimized compensation angle. Finally, the above data and the curves of action travel and output force are comprehensively compared and analyzed. The results show that the output force value stability of cam with compensation angle is better than that of cam without compensation angle. In actual operating stroke, the maximum difference of output force between two times is (-0.8, +0.6) kN with compensation angle cam error, and (-1.2, +1.2) kN without compensation angle cam error. The error with compensation angle cam is also less than that without compensation angle cam error.
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为了解决现有踏面制动单元凸轮构造中由于未考虑活塞偏转对凸轮动力矩产生的影响,导致平衡方程不完整、不精确和制造的凸轮轮廓误差较大的问题,对踏面制动凸轮构造和输出力稳定性展开了研究。首先,引入优化补偿角概念,将活塞偏转引起的推力对凸轮铰接点产生2个方向的转动力矩包含在新平衡方程中,使平衡方程更加完整、精确,误差更小,以此设计构造新的凸轮机构。然后,在踏面制动单元例行试验机上,对原凸轮机构和含优化补偿角的新构造凸轮机构进行输出力值稳定性对比实验。最后,对上述数据及作用行程与输出力值曲线进行综合对比分析。研究结果表明,含补偿角凸轮输出力值稳定性优于不含补偿角凸轮。在实际作用行程下,两次输出力差最大值,含补偿角凸轮误差在(-0.8,+0.6)kN,不含补偿角凸轮误差在(-1.2,+1.2)kN,含补偿角凸轮误差也小于不含补偿角凸轮误差。
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, authorsList=赵飞)}, authors=[Author(id=1207748674520715389, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=82009184@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1207748674717847689, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, authorId=1207748674520715389, language=EN, stringName=Fei ZHAO, firstName=Fei, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Electrical and Information, Zhenjiang College, Zhenjiang 212028, Jiangsu, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1207748674852065426, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, authorId=1207748674520715389, language=CN, stringName=赵飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=镇江市高等专科学校 电气与信息学院,江苏 镇江 212028, bio={"content":"
赵飞(1981—),男,高级工程师,硕士。E-mail:82009184@qq.com
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赵飞(1981—),男,高级工程师,硕士。E-mail:82009184@qq.com
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Type of pedal brake unit, figureFileSmall=rALKg08vAbHVu4Rgqy/4bw==, figureFileBig=ZRMuPg1SLsP6Sp3Wyo7c1Q==, tableContent=null), ArticleFig(id=1207748677456728300, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图1, caption=
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Schematic diagram of force analysis of cam mechanism, figureFileSmall=eIxdV1mm/OUTcMF8Q8VdKg==, figureFileBig=N9gtj8knrsBazH7aWq+RqQ==, tableContent=null), ArticleFig(id=1207748677884547337, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图3, caption=
凸轮机构受力分析, figureFileSmall=eIxdV1mm/OUTcMF8Q8VdKg==, figureFileBig=N9gtj8knrsBazH7aWq+RqQ==, tableContent=null), ArticleFig(id=1207748677981016333, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Fig.4, caption=
Tread brake unit test stand, figureFileSmall=9cZ/AsuCSR5ZjXdbvY2lFw==, figureFileBig=i6cHoGKq2QwoHM5k/F04bw==, tableContent=null), ArticleFig(id=1207748678056513810, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图4, caption=
踏面制动单元试验台, figureFileSmall=9cZ/AsuCSR5ZjXdbvY2lFw==, figureFileBig=i6cHoGKq2QwoHM5k/F04bw==, tableContent=null), ArticleFig(id=1207748678178148632, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Fig.5, caption=
Test travel and braking force value curve, figureFileSmall=whbQ3mSJdZX8ZwaDlw+Kzg==, figureFileBig=I9XE3TLYoWolQUAkwtoBIA==, tableContent=null), ArticleFig(id=1207748678283006233, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图5, caption=
测试行程与制动力值曲线, figureFileSmall=whbQ3mSJdZX8ZwaDlw+Kzg==, figureFileBig=I9XE3TLYoWolQUAkwtoBIA==, tableContent=null), ArticleFig(id=1207748678383669534, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Fig.6, caption=
Curve of actual stroke and braking force, figureFileSmall=Xhgbhcmf7r9j25hGGqrqLg==, figureFileBig=Y6l2jS5mGwCChxMYXwXp6g==, tableContent=null), ArticleFig(id=1207748678492721445, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图6, caption=
实际行程与制动力值曲线, figureFileSmall=Xhgbhcmf7r9j25hGGqrqLg==, figureFileBig=Y6l2jS5mGwCChxMYXwXp6g==, tableContent=null), ArticleFig(id=1207748678610161959, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Fig.7, caption=
Differential curve between stroke and braking force, figureFileSmall=mcN8UOZJDZDSwzx1mSuJww==, figureFileBig=9/nMrjgXPEddX+NJN4gXZA==, tableContent=null), ArticleFig(id=1207748678681465130, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图7, caption=
测试行程与制动力差值曲线, figureFileSmall=mcN8UOZJDZDSwzx1mSuJww==, figureFileBig=9/nMrjgXPEddX+NJN4gXZA==, tableContent=null), ArticleFig(id=1207748678744379693, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Fig.8, caption=
Difference curve between stroke and braking force, figureFileSmall=p80D79ynwc6xi/zcQ55tyA==, figureFileBig=YJUdPSpvBe9GLSNwRimnBg==, tableContent=null), ArticleFig(id=1207748678815682865, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=图8, caption=
实际行程与制动力差值曲线, figureFileSmall=p80D79ynwc6xi/zcQ55tyA==, figureFileBig=YJUdPSpvBe9GLSNwRimnBg==, tableContent=null), ArticleFig(id=1207748678916346167, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Tab.1, caption=
Experimental contents
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| 凸轮类型 | 倍率 | 测试位置 | 测试行程/mm | 实际行程/mm |
|---|
| 含补偿角 | 4.5 | L1闸瓦磨损初始状态 L2闸瓦磨损至一半状态 L3闸瓦磨损至极限状态 | 2~20 | 10~16 |
| 不含补偿角 |
), ArticleFig(id=1207748679008620857, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=表1, caption=
实验内容
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| 凸轮类型 | 倍率 | 测试位置 | 测试行程/mm | 实际行程/mm |
|---|
| 含补偿角 | 4.5 | L1闸瓦磨损初始状态 L2闸瓦磨损至一半状态 L3闸瓦磨损至极限状态 | 2~20 | 10~16 |
| 不含补偿角 |
), ArticleFig(id=1207748679109284158, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Tab.2, caption=
Output force value and stroke relation of cam with compensation angle
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| 行程/mm | 含补偿角凸轮力值/kN |
|---|
| L11 | L12 | L21 | L22 | L31 | L32 |
|---|
| 2 | 9.6 | 9.7 | 10.1 | 9.7 | 11.3 | 11.3 |
| 4 | 11.4 | 11.8 | 13.3 | 12.0 | 18.6 | 19.2 |
| 6 | 44.4 | 23.2 | 44.6 | 27.7 | 45.1 | 45.0 |
| 8 | 44.1 | 43.8 | 43.7 | 44.0 | 44.9 | 45.1 |
| 10 | 43.6 | 43.9 | 43.4 | 43.6 | 44.5 | 44.2 |
| 12 | 43.4 | 43.0 | 43.2 | 43.3 | 44.5 | 44.6 |
| 14 | 43.9 | 43.5 | 44.2 | 43.7 | 43.7 | 44.5 |
| 15 | 43.1 | 43.5 | 43.9 | 43.6 | 44.0 | 44.8 |
| 16 | 42.7 | 43.2 | 42.9 | 43.5 | 43.0 | 43.7 |
| 17 | 38.5 | 39.3 | 39.9 | 43.0 | 39.4 | 40.3 |
| 18 | 31.3 | 33.1 | 39.6 | 37.3 | 34.5 | 37.9 |
| 19 | 12.2 | 4.1 | 6.2 | 29.8 | 0.7 | 0.8 |
| 20 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
), ArticleFig(id=1207748679184781633, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=表2, caption=
含补偿角凸轮输出力值与行程关系
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| 行程/mm | 含补偿角凸轮力值/kN |
|---|
| L11 | L12 | L21 | L22 | L31 | L32 |
|---|
| 2 | 9.6 | 9.7 | 10.1 | 9.7 | 11.3 | 11.3 |
| 4 | 11.4 | 11.8 | 13.3 | 12.0 | 18.6 | 19.2 |
| 6 | 44.4 | 23.2 | 44.6 | 27.7 | 45.1 | 45.0 |
| 8 | 44.1 | 43.8 | 43.7 | 44.0 | 44.9 | 45.1 |
| 10 | 43.6 | 43.9 | 43.4 | 43.6 | 44.5 | 44.2 |
| 12 | 43.4 | 43.0 | 43.2 | 43.3 | 44.5 | 44.6 |
| 14 | 43.9 | 43.5 | 44.2 | 43.7 | 43.7 | 44.5 |
| 15 | 43.1 | 43.5 | 43.9 | 43.6 | 44.0 | 44.8 |
| 16 | 42.7 | 43.2 | 42.9 | 43.5 | 43.0 | 43.7 |
| 17 | 38.5 | 39.3 | 39.9 | 43.0 | 39.4 | 40.3 |
| 18 | 31.3 | 33.1 | 39.6 | 37.3 | 34.5 | 37.9 |
| 19 | 12.2 | 4.1 | 6.2 | 29.8 | 0.7 | 0.8 |
| 20 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
), ArticleFig(id=1207748679314805061, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=EN, label=Tab.3, caption=
Output force value and stroke relation of cams without compensation angle
, figureFileSmall=null, figureFileBig=null, tableContent=
| 行程/mm | 不含补偿角凸轮力值/kN |
|---|
| L11 | L12 | L21 | L22 | L31 | L32 |
|---|
| 2 | 11.4 | 12.0 | 11.5 | 8.6 | 9.9 | 8.7 |
| 4 | 15.0 | 16.2 | 18.3 | 11.4 | 13.7 | 11.6 |
| 6 | 45.2 | 45.6 | 43.4 | 17.2 | 42.9 | 18.1 |
| 8 | 44.8 | 45.3 | 42.7 | 43.3 | 42.5 | 42.8 |
| 10 | 44.7 | 44.8 | 42.8 | 42.8 | 42.4 | 42.4 |
| 12 | 44.5 | 44.1 | 42.3 | 43.0 | 43.0 | 42.5 |
| 14 | 42.9 | 43.7 | 42.4 | 42.9 | 41.2 | 42.3 |
| 15 | 42.7 | 41.7 | 41.7 | 40.4 | 39.8 | 40.7 |
| 16 | 43.5 | 43.1 | 41.0 | 41.1 | 39.8 | 40.8 |
| 17 | 43.4 | 42.1 | 41.3 | 41.2 | 40.6 | 40.4 |
| 18 | 34.1 | 35.5 | 38.8 | 34.4 | 35.6 | 39.1 |
| 19 | 0.7 | 0.8 | 29.9 | 26.2 | 12.1 | 3.6 |
| 20 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
), ArticleFig(id=1207748679407079753, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658085515105236, language=CN, label=表3, caption=
不含含补偿角凸轮输出力值与行程关系
, figureFileSmall=null, figureFileBig=null, tableContent=
| 行程/mm | 不含补偿角凸轮力值/kN |
|---|
| L11 | L12 | L21 | L22 | L31 | L32 |
|---|
| 2 | 11.4 | 12.0 | 11.5 | 8.6 | 9.9 | 8.7 |
| 4 | 15.0 | 16.2 | 18.3 | 11.4 | 13.7 | 11.6 |
| 6 | 45.2 | 45.6 | 43.4 | 17.2 | 42.9 | 18.1 |
| 8 | 44.8 | 45.3 | 42.7 | 43.3 | 42.5 | 42.8 |
| 10 | 44.7 | 44.8 | 42.8 | 42.8 | 42.4 | 42.4 |
| 12 | 44.5 | 44.1 | 42.3 | 43.0 | 43.0 | 42.5 |
| 14 | 42.9 | 43.7 | 42.4 | 42.9 | 41.2 | 42.3 |
| 15 | 42.7 | 41.7 | 41.7 | 40.4 | 39.8 | 40.7 |
| 16 | 43.5 | 43.1 | 41.0 | 41.1 | 39.8 | 40.8 |
| 17 | 43.4 | 42.1 | 41.3 | 41.2 | 40.6 | 40.4 |
| 18 | 34.1 | 35.5 | 38.8 | 34.4 | 35.6 | 39.1 |
| 19 | 0.7 | 0.8 | 29.9 | 26.2 | 12.1 | 3.6 |
| 20 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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