Article(id=1220368081986179420, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1220368072699986922, articleNumber=null, orderNo=null, doi=10.7654/j.issn.2097-1974.20250606, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1751644800000, receivedDateStr=2025-07-05, revisedDate=1765209600000, revisedDateStr=2025-12-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1768888024088, onlineDateStr=2026-01-20, pubDate=1766592000000, pubDateStr=2025-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768888024088, onlineIssueDateStr=2026-01-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768888024088, creator=13701087609, updateTime=1768888024088, updator=13701087609, issue=Issue{id=1220368072699986922, tenantId=1146029695717560320, journalId=1146119989267898375, year='2025', volume='48', issue='6', pageStart='1', pageEnd='106', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768888021873, creator=13701087609, updateTime=1768888582821, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1220370425566118679, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1220368072699986922, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1220370425570312984, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1220368072699986922, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=41, endPage=45, ext={EN=ArticleExt(id=1220368083940725113, articleId=1220368081986179420, tenantId=1146029695717560320, journalId=1146119989267898375, language=EN, title=Study on Improved Design of Transmission Thread for Gas Cylinder Charging Valve, columnId=1154057566893105509, journalTitle=Missiles and Space Vehicles, columnName=Propulsion, runingTitle=null, highlight=null, articleAbstract=
The transmission thread of the currently used gas cylinder charging valve largely follows the design scheme of mature models, employing the same ordinary triangular thread as the fastening thread. Ordinary thread connections offer good self-locking performance and are commonly used for fastening connections or fine-pitch adjustment screws. Due to inherent issues with the thread profile's applicability, a problem of thread stripping in the transmission thread occurred during the standard life test of batch-produced products. To address this issue, a thread improvement scheme was proposed. Through research on the improved design of the transmission thread for the gas cylinder charging valve, the original triangular thread was replaced with a trapezoidal thread. The improved trapezoidal thread exhibits a lower stress level and a larger margin relative to the allowable stress, demonstrating a good improvement effect. Four 3J1 studs successfully passed the 1 000-cycle high-pressure limit life test under pressure. The service life of the thread pair increased from less than 250 cycles to 1 000 cycles, verifying the feasibility of the trapezoidal thread scheme and improving the service life of the thread pair.
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现役气瓶充气阀的传动螺纹基本延续了成熟型号的设计方案,采用与紧固螺纹相同的普通三角螺纹,普通螺纹连接自锁性能好,常用于紧固连接或小螺距的调节螺旋。由于螺纹牙型固有的适用性问题,在批次产品的研制中,出现了寿命试验中传动螺纹滑扣的问题,针对此问题提出了螺纹改进方案。通过对气瓶充气阀传动螺纹改进设计研究,将原有的三角螺纹改为梯形螺纹,改进后的梯形螺纹应力水平更低,相对许用应力的余量更大,改进效果较好。4件3J1螺杆顺利通过了1 000次高压带压极限寿命试验考核,螺纹副寿命由原来的不足250次提高到1 000次,验证了梯形螺纹方案的可行性,提高了螺纹副的使用寿命。
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高兆金(1988—),男,工程师,主要研究方向为阀门。
张博文(1993—),男,工程师,主要研究方向为阀门。
吴立夫(1989—),男,博士,高级工程师,主要研究方向为阀门。
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高兆金(1988—),男,工程师,主要研究方向为阀门。
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张博文(1993—),男,工程师,主要研究方向为阀门。
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吴立夫(1989—),男,博士,高级工程师,主要研究方向为阀门。
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吴立夫(1989—),男,博士,高级工程师,主要研究方向为阀门。
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46(9): 171-178., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1220368085496811995, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, xref=null, ext=[AuthorCompanyExt(id=1220368085505200604, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, companyId=1220368085496811995, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Beijing Ares Technology Co. , Ltd. , Beijing, 100076), AuthorCompanyExt(id=1220368085509394909, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, companyId=1220368085496811995, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=北京航天爱锐科技有限责任公司,北京,100076)])], figs=[ArticleFig(id=1220368090911658591, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.1, caption=
Structural principle of gas cylinder inflation valve, figureFileSmall=p45hI/MD/ZXqniPwt/P17Q==, figureFileBig=4lloeO2xF/IRcj3q6+RYnw==, tableContent=null), ArticleFig(id=1220368092211892836, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图1, caption=
气瓶充气阀结构原理1—螺杆;2—O形密封圈;3—壳体翅片;4—顶杆;5—壳体;6—主活阀;7—卸荷活阀;8—弹簧;9—止动环。
, figureFileSmall=p45hI/MD/ZXqniPwt/P17Q==, figureFileBig=4lloeO2xF/IRcj3q6+RYnw==, tableContent=null), ArticleFig(id=1220368092488716909, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.2, caption=
Thread stripping failure observed on gas cylinder filling valve after life test, figureFileSmall=C1FeqBvY3glLLxB/IiXJkQ==, figureFileBig=qqfdfVCR+QvZqJSgUG+W4Q==, tableContent=null), ArticleFig(id=1220368094447456881, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图2, caption=
气瓶充气阀寿命试验螺纹滑扣现象, figureFileSmall=C1FeqBvY3glLLxB/IiXJkQ==, figureFileBig=qqfdfVCR+QvZqJSgUG+W4Q==, tableContent=null), ArticleFig(id=1220368094552314484, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.3, caption=
Simulation modeling, figureFileSmall=Cn3pF6HM+oINDp/moEAYdw==, figureFileBig=4RI9jZleJS1HbTmDsT/W0Q==, tableContent=null), ArticleFig(id=1220368094682337913, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图3, caption=
仿真建模, figureFileSmall=Cn3pF6HM+oINDp/moEAYdw==, figureFileBig=4RI9jZleJS1HbTmDsT/W0Q==, tableContent=null), ArticleFig(id=1220368094808167039, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.4, caption=
Trapezoidal thread simulation results, figureFileSmall=GKOszwRrTR2530rsfoJkZw==, figureFileBig=2XD52eBDy5jT1qdEn4T6XQ==, tableContent=null), ArticleFig(id=1220368094933996162, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图4, caption=
梯形螺纹仿真结果, figureFileSmall=GKOszwRrTR2530rsfoJkZw==, figureFileBig=2XD52eBDy5jT1qdEn4T6XQ==, tableContent=null), ArticleFig(id=1220368095051436679, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.5, caption=
Triangular thread simulation results, figureFileSmall=ak/l/Q8dBzowDjfnOMtdww==, figureFileBig=mK/no7RhNpKyULFLJ3XSFw==, tableContent=null), ArticleFig(id=1220368095131128462, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图5, caption=
三角螺纹仿真结果, figureFileSmall=ak/l/Q8dBzowDjfnOMtdww==, figureFileBig=mK/no7RhNpKyULFLJ3XSFw==, tableContent=null), ArticleFig(id=1220368095240180372, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Fig.6, caption=
Disassembly inspection of trapezoidal thread test piece, figureFileSmall=Ho10ahSDJkseNHZ0HGATgw==, figureFileBig=Fuf4LEjgAfRxq4S09fWLdg==, tableContent=null), ArticleFig(id=1220368096565580440, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=图6, caption=
梯形螺纹试验件分解检查情况, figureFileSmall=Ho10ahSDJkseNHZ0HGATgw==, figureFileBig=Fuf4LEjgAfRxq4S09fWLdg==, tableContent=null), ArticleFig(id=1220368096708186782, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=EN, label=Tab.1, caption=
Trapezoidal thread parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 设计参数 | 数值/mm |
|---|
| 基本牙型高 | 1.5 |
| 牙底宽 | 1.098 |
| 牙顶间隙 | 0.25 |
| 螺纹牙高 | 1.75 |
| 牙顶最大倒圆角半径 | 0.125 |
| 牙底最大倒圆角半径 | 0.25 |
| 壳体内螺纹小径 | 21 |
| 壳体内螺纹中径 | 22.5 |
| 壳体内螺纹大径 | 24.5 |
| 螺杆外螺纹小径 | 20.5 |
| 螺杆外螺纹中径 | 22.5 |
| 螺杆外螺纹大径 | 24 |
), ArticleFig(id=1220368096800461473, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1220368081986179420, language=CN, label=表1, caption=
梯形螺纹牙型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 设计参数 | 数值/mm |
|---|
| 基本牙型高 | 1.5 |
| 牙底宽 | 1.098 |
| 牙顶间隙 | 0.25 |
| 螺纹牙高 | 1.75 |
| 牙顶最大倒圆角半径 | 0.125 |
| 牙底最大倒圆角半径 | 0.25 |
| 壳体内螺纹小径 | 21 |
| 壳体内螺纹中径 | 22.5 |
| 壳体内螺纹大径 | 24.5 |
| 螺杆外螺纹小径 | 20.5 |
| 螺杆外螺纹中径 | 22.5 |
| 螺杆外螺纹大径 | 24 |
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