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zhaiyao:duidiaojiefakuaisuchatoudemifengrongyishixiaoyuanyinjinxinglefenxi,bingtichugaijinfangfa,zixingshejizhizaodexinxingmifengjianjianhualejiegouhezhizaogongyi,jiangdilechengben,tigaoleshiyongshouming,juyoutuiguangjiazhi。

關鍵詞調節閥快速接頭密封改進設計

調節閥快速接頭的關鍵技術是在于密封性能,在與插頭對接時,要有很好的密封性,避免管內流體泄漏,同時拔出插頭時,能迅速關閉接口。現在快速接頭的技術已經非常成熟,市場上的種類也非常多,各有技術優點,但也存在一些不足,如結構復雜、制造成本高、密封容易損壞等缺陷。筆者根據工作中接觸到的噴槍快速接頭,其密封很容易損壞。經過長時間的摸索改進,自行設計了快速接頭的密封結構,簡化了密封結構和制作工藝,降低了制作成本,同時提高了密封的壽命。現作如下介紹,謹供同行參考。

1 調節閥快速接頭的結構及工作原理

調節閥(圖 1)
圖 1 調節閥
快速插頭(圖 2)
圖 2 快速插頭

tu 1weidiaojiefa,tu 2 weikuaisuchatou。diaojiefayou 3 gejietou,dailuowende 2 gejietouyuyouqiguanlianjie;lingyigeshikakoushikuaisujietou,zaishengchanshiyugudingzaipenqiangshangkuaisuchatoulianjie,zheyangpenqiangjingdiaojiefayuyouqiguanxingchenglelianjie。

調節閥快速接頭內部密封結構示意圖(圖 3)
圖 3 調節閥快速接頭內部密封結構示意圖

(1)kuaisujietoumifengjiegou。rutu 3 weidiaojiefakuaisujietouneibumifengjiegoushiyitu,qimifengyou 4 bufenzucheng:yasuodanhuang,gangqiuhegangqiuzuo,danxingmifeng,danxingmifengzuo。

(2)kuaisujietougongzuoyuanli。rutu 3 suoshi,kuaisujietouzaimeiyouyuchatoulianjieshi,yasuodanhuangjianggangqiuyadaogangqiuzuoshang,duzhulianjiekong,xingchengguanbizhuangtai;erdangchatouyouxiawangshangcharenlianjiekongshi,chatouyiciyudanxingmifengzuo、danxingmifeng、gangqiuzuohegangqiujiechu,zuihouchatoujianggangqiudinglikaigangqiuzuo,dakailianjiekong,liutijingchatouzhongxinkongliuchu,jiuwanchenglekuaisuduijie。zaiduijieshi,chatouyulianjiekongzhongdegangqiuzuo、danxingmifengzuodepeihedoushijianxipeihe,zhiyoudanxingmifengyuchatoushijinmipeihe,jizhiyoudanxingmifengduichatouqidaomifengzuoyong。zaiyuchatoulianjieheduankaidecaozuozhong,charenshi,chatouzaidakailianjiekongqian,xianyudanxingmifengjiechuxingchengmifeng;erbachushi,chatouzaituolidanxingmifengqian,gangqiuyijingxianduzhulianjiekong,zhejiushikuaisujietouyuchatoulianjieheduankaishi,meiyouyouqixieloudeyuanyin。

danxingmifengdegongzuoyuanlihechangjiandegujiayoufengshiyiyangde,shikaodanhuangdeshousuolixingchengmifeng。

2 原密封存在的缺陷及原因分析

從生產使用中故障情況統計,所有的接頭泄漏故障都是彈性密封磨損、變形等造成接頭泄漏,而且使用壽命很短,平均壽命均為 1 個月;備件成本高,該產品為美國某廠家生產,采購成本為每個密封 300 元人民幣。其故障原因分析如下:

鋼球座和彈性密封之間有間隙和死角(圖 4)
圖 4 鋼球座和彈性密封之間有間隙和死角

(1)youqihanyoujinshukeliheyouqiweiyeningjiekeli,qihuijiasudanxingmifengdemosun。xianzaipentudeyouqi,dadouhanyoujinshukeli,rutu 4。gangqiuzuohedanxingmifengzhijianyoujianxihesijiao,chatoubachushi,jiuhuiyouyouqiweiyecanliuzaijianxili,zaicanliudedifangningjiebianying,dangcharenchatoushi,ningjiedeyouqihejinshukelijiuhuiduimifengjiya,zaochengdanxingmifengdemosunhebianxing;huanyoucanliudeyouqijingjianxiliurudanxingmifengquandedanhuangcaonei,shichendianningjie,shidedanhuangshixiao,buzaiyoushoujindezuoyong。

(2)danxingmifengdeyouxiaomifenghouduyue 1.5~2mm,mifengmianxiao,rongyimosunshixiao;danhuangxiaoshousuoliyouxian,dangmifengquandedanhuangcaoneiyouyouqiningjiehou,jiushiquzuoyong。

yinci,yaogaijinyuanlaimifengjiegou,jiuyaojiejueyuanmifengcunzaidezheliangdianquexian。

3 新型密封結構及技術特點

3.1 xinxingmifengjiegou

圖 5 新型密封的組成(圖 5)
圖 5 新型密封的組成
密封件實物(圖 6)
圖 6 密封件實物

rutu 5 suoshi,xinxingmifengyouyasuodanhuang、gangqiu、mifengjian 3 bufenzucheng。qizhongxinmifengjiangyuanlaidegangqiuzuo、danxingmifenghedanxingmifengzuo 3 gebufenzuhechengyiti,rutu 6 suoshidemifengjianshiwu。

3.2 xinmifengdejishutedian

(1)liyongmifengzishendedanxingbianxingxingchengmifeng,buzailingwaijiazhuangdanhuang。rutu 5 suoshi,xinmifengjianzhengtishangchengguanzhuang,zaishangbanduanguanbineijiagongyou u xingaocao,xingchengneiwailiangcengguanbi;neikongchicunweishangxiaoxiada。xinmifengjianshangduanneicengshimifengjiandeguanjian,qiguanbishejidexiangduijiaobo,shiweilerangtarongyichanshengdanxingbianxing;qineikonghekuaisuchatoudepeihechicunweiguoyingpeihe,dangchatoucharenshi,bobiguanfashengdanxingbianxingzhangda,bobiguankaozishendanxingbianxingdeshousuoli,shideguanbihechatouwaibiaomianjinmijiechuxingchengmifeng。xinxingmifengdegongzuoguochengyuyuanzhuangmifengyiyang,jizaiyuchatoulianjieheduankaidecaozuozhong,charenshi,chatouzaidakailianjiekongqianxianyuxinmifengjianshangduanneicengguanbixingchengmifeng;erbachushi,chatouzaituolixinmifengjianshangduanneicengguanbiqian,gangqiuyijingxianduzhulianjiekong,zhenggeguochengdemifengdoushikaomifengjianshangduanneicengbobiguanzishendedanxingbianxinglaiwancheng,dadaokuaisuduanjieermeiyouyouqixielou。

zaikuaisujietouweiyuchatoulianjieshi,danhuangjianggangqiuyazaimifengjianshangduanneicengguanbidechukoushang,duilianjiekongxingchengguanbi,zheshi,neicengguanbishoudaodanhuangyazaigangqiushangdeyaliheguanneiyouqideyali,zheyangneicengguanbixuyaoyidingdegangxing。

(2)liyongliutizishenyalixingchengmifeng。mifengjianshangduanshejiyou u xingaocao,tabudanweineicengguanbichanshengdanxingbianliuxialekongjian,tongshizaigongzuoshi u xingaocaoneitianchongmanyouqi,youyuyouqibenshenjiuyou 600000~800000pa deyali,geibobiguanzaijingxiangshangyigehendadeyali,zheyangshidebobiguanhechatoujiechuniehedegenghao,tigaomifengdekekaoxing,jiejueleyuanlaidanxingmifengdanhuangshousuolipianxiao,daozhimifengrongyishixiaodewenti;erdangbachukuaisuchatouhou,youqideyaliyouzhuyubobiguanzhangdadanxingbianxingdeshousuo,jiangdibobiguandanxingbianxingdepilaodu,tigaomifengjiandeshouming。

(3)xinmifengneikongpinghuaguodu,wusijiao,buyijieqi,mifengjiechumianda,tigaomifengjianshouming。xinmifengneikongshangxiaoxiada,shejichengpinghuaguodu,meiyousijiao,jiejueleyuanmifengneikongyousijiaodequexian,zheyangcanliudeyouqibuyijieduiningjiezaimifengjianneikong,jianshaoyouqikeliduimifengjiandejiyamoca。xinmifengdemifengmiandaxiao,qujueyumifengjianshangduan u xingcaodeshendu,jishangduanneicengbobiguandegaodu。bobiguanyuegao,mifengmianyueda,yueyouliyutigaomifengkekaoxing;erbobiguandegaodu,qujueyuzhizuocailiaodegangxinghedanxingzonghexingneng。xianzaiwomenshiyongjusifuyixibangliaozhizuo,bobiguandegaodudadao 8mm,eryuanlaidedanxingmifenggaoduwei 2mm。zheyang,xinmifengjianheyuanlaidanxingmifengdemifengmiandaxiaobi,jiweitamendegaodubi,xinmifengjianweiyuanlaide 4 bei,dadazengjialemifengjiechumian,jiejueleyuanlaidanxingmifengmifengmianxiaodequexian;tongshimifengmianzengdahou,yeyoulitigaomifengdenaimoxing,congertigaomifengshouming。

(4)zhizaogongyijiandan,dadajiangdilezhizaochengben。congmifengjiandexingzhuangkekanchu,qizhizuogongyifeichangjiandan,jikeyijijiagongzhizuo,yekeyizhumochengxingzhizao,zhikaodanyidezhizuogongyijiukeyiwancheng;eryuanlaidedanxingmifeng,jixuyaozhumozhizao,youyaozhizuodanhuangjihanjie,gongyixiangduifuza;xinmifengzhizaogongyijiandan,zhizuochengbenziranjiangdi。

4 結束語

chejianxianchangcongdangniande 5 yuefenkaishishiyongxinmifengjiandaitiyuanlaidedanxingmifeng,zaitihuanqian,danxingmifengpingjunmei 2 tiansunhuaiyige,jingguo 5 yuefendezhubutihuanhou,dao 8 yuefenmifengsunhuaizhiyou 4 ge,guzhanglvdadajiangdi。jingshiyongzhengming,xinxingmifengjianbujinkeyiqidaoyuanlaimifengdegongneng,erqiedadatigaomifengshouming,dadaogaijindeyuqixiaoguo。

xinmifengjiandetedianzhizuogongyijiandan、mifengxinghao、shoumingchang,shiyongyuleisiyuyouqidenghanyouweixiaogutikelihuanjing。zaigongyeshengchanjishenghuozhong,xuyaoshiyongkuaisujietoudechanghehenduo,rushuiguankuaisujietou、yasuokongqikuaisujietoudeng,benwenjieshaodemifengjianyouzhulianghaodetuiguangjiazhi。


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