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泽天液压传感器在桥梁同步顶升技术中的应用

2020-3-19

YOUYULISHIYUANYIN,BUFENQIAOLIANGYOUYUJIANZAOSHIJIANJIAOZHANG,YIBUNENGMANZUCHENGSHIJINYIBUFAZHANDEXUYAO,TEBIESHITONGHANGGAODUDEBUZUGENGSHIRUCI。QIAOLIANGTONGBUDINGSHENGJISHUDEYINGYONGDUIYUZAIBAOCHIQIAOLIANGSHANGBUJIEGOUDEWANZHENGXINGDETONGSHI,TAISHENGQIAOLIANGLAIMANZUTONGHANGYAOQIU,YOUZHEFEICHANGZHONGYAODEYIYI。TAJIJIESHENGLETOUZIDECHENGBEN,YOUSUODUANLESHIGONGGONGQI,DUIJIAOTONGDEYALIYINGXIANGJIAOXIAO。


桥梁顶升用液压传感器

TU:QIAOLIANGDINGSHENGYONGYEYACHUANGANQI

YI、QIAOLIANGDINGSHENGTONGBUXITONGDEZUCHENG

桥梁顶升同步系统由液系统(油泵、油缸等)、液压压力传感器、计算机控制系统等几个部分组成。液压压力传感器是液压系统控制的关键,液压系统由计算机控制,可以全自动完成同步位移,实现力和位移的控制、位移误差的控制、行程的控制、负载压力的控制;误操作自动保护、过程显示、故障报警、紧急停止功能;油缸液控单向阀可防止任何形式的系统及管路失压,从而保证负载有效支撑等多种功能。

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福彩快三 YEYAXITONGGONGZUOYALI31.5Mpa;DINGSHENGGANGTUILI 200T;DINGSHENGGANGXINGCHENG 140mm;PIANZAINENGLI5;ZUIDADINGSHENGSUDU 10mm/min;ZUNEIDINGSHENGGANGKONGZHIXINGYALIBIHUANKONGZHI、KONGZHIJINGDU≤5%;ZUYUZUJIANKONGZHIXINGSHIWEIZHIBIHUANKONGZHI、TONGBUJINGDU±5.0 mm。JIANCECHUANGANXITONGZAIZHENGGEDINGSHENGPINGYIXITONGZHONGFEICHANGZHONGYAO,SHIWOMENHUODESHUJUXINXIDEZHUYAOLAIYUAN。TADELINGMINDUJIANGZHIJIEYINGXIANGDAODINGSHENGDETONGBUJINGDU。JIANCECHUANGANXITONGZHUYAOSHIYOUGUANGZHACHI、XINHAOFANGDAQI、CHUANGANXIANLUJIJISUANJIZUCHENG,QIZHONGZUIZHONGYAODEJIUSHIGUANGZHACHI,TADEFENBIANLVNENGDADAO0.005 mm。

GUANGZHACHIDEZHUYAOZUOYONGSHIJIANCEDINGSHENGDEXIANGDUIWEIYI,RANHOUJIANGCEDEDEWEIYISHUJUTONGGUOXINHAOFANGDAQIDECHULI,BAJINGGUOFANGDAHOUDEXINHAOTONGGUOCHUANGANXIANLUCHUANSONGDAOJISUANJI,YOUJISUANJIJINYIBUCHULISUOSHOUJIDAODESHUJUXINXI。GUANGZHACHIDEBUSHEZHIJIEYINGXIANGDAOJIANCEDEZHUNQUEXING,HELIDEBUSHEGUANGZHACHINENGKEGUANDIFANYINGCHUZHENGTIDEWEIYIZITAI。SUOYIZAIHUAFENKONGZHIQUYUSHI,YAOKAOLVDAOGUANGZHACHIDEJIASHEDEWEIZHISHIFOUNENGKEGUANDIFANYINGGAIKONGZHIQUYUDEZHENGTIWEIYI。DANGRAN,GUANGZHACHIJIASHESHIYINGBAOZHENGTADECHUIZHIDU,JINLIANGJIANSHAORENWEIZAOCHENGWUCHA,BAOZHENGGUANGZHACHIDEJINGDU。

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ER、DINGSHENGXITONGKONGZHIYUANLI

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根据对设计施工图纸初步受力分析,确定荷载的大致分布,按荷载的分布计算各千斤顶的理论负载油压设定千斤顶的初始油压,采用逐级加载的方式进行称重。初始值按50%和在加压,按10%的荷载逐级加压,根据各顶升点产生的实际位移量,来确定出各顶升点的荷载是否分布均匀,从而有主控人员来确定对各千斤顶油压的调节使各顶升点位移量相对平均,从而保证顶升过程的同步进行。当整个桥梁的顶升高度在5~10mm时,即整个桥梁处于悬浮状态,就证明各顶升点处的荷载与该千斤顶的负载值相一致。在此基础上是顶升1-2cm以确定是否可以以改厕定制进行顶升,该千斤顶的油压值,就是我们最终的称重结果。根据所测得的油压值可以计算出桥梁的实际重量:G桥=Σσ*S/9.8;σ----千斤顶油压值(mPa);S----千斤顶油缸的截面面积(mm2)。根据称重结果设定好千斤顶的初始工作值后,即油压传感器福彩快三测得的油压值-2Mpa,开始由PLC系统进行自动控制,即控制压力>2Mpa时系统进行顶升工作,控制压力<2Mpa时进行落梁工作,当控制压力=2Mpa时桥梁处于悬浮状态。当然,PLC系统是根据光栅尺反映的位移量来调节组与组之间顶升速度,通过速度的调节来保证位移的一直,从而保证整个桥梁的同步顶升。仅仅由PLC系统自行控制是远远不够的。因为在顶升过程中意想不到的事情有很多,这就要由主控人员根据实际情况来决定是否调整各千斤顶的油压值,以便辅助PLC系统达到同步顶升。

YINWEIGUANGZHACHIFANYINGDEWEIYISHIDIANWEIYI,BINGBUNENGFANYINGDUODIANWEIYI,SUOYIHAIYAOYOURENGONGBUSHEDUODIANJINXINGWEIYIJIANCE,BINGJISHIBAOGAOZHUKONGRENYUAN,YIBIANZHUKONGRENYUANKEYIGENGQUANMIANDIZHANGWODINGSHENGDEWEIYIJIZITAI。DANGRANQUANWEIDEQIAOLIANGJIANCEBUMEN,ZAIDINGSHENGGUOCHENGZHONGDUIQIAOLIANGDEYINGLI、YINGBIANQINGKUANGDEQUANCHENGJIANCEDEJIANCESHUJU,YESHIZHUKONGRENYUANYAOZHANGWODESHUJUXINXIZHIYI。YIBIANDUIDINGSHENGGUOCHENGSHIFOUDUIQIAOLIANGJIEGOUCHANSHENGYINGXIANG,BINGHELIPINGJIAJIEGOUSHOUWAILIZUOYONGDEYINGXIANG,YIBIANJISHI、ZHUDONGDICAIQUCUOSHIJIANGDIHUOXIAOCHUBULIYINSUDEYINGXIANG,QUEBAOJIEGOUDEANQUAN。

应用图片

ZANWUTUPIAN。