(1)改進後的嵌入法
70年代末,英、德de就jiu開kai始shi采cai用yong在zai皮pi帶dai中zhong埋mai設she金jin屬shu導dao線xian的de方fang法fa。但dan由you於yu皮pi帶dai的de連lian續xu運yun動dong,不bu可ke避bi免mian地di會hui產chan生sheng滾gun切qie的de持chi續xu應ying力li,使shi金jin屬shu導dao線xian遭zao受shou磨mo損sun而er斷duan裂lie。為wei了le克ke服fu這zhe個ge缺que點dian,英ying國guo應ying用yong摩mo擦ca係xi數shu較jiao小xiao的de聚ju脂zhi纖xian維wei做zuo成cheng的de空kong心xin管guan套tao在zai導dao線xian外wai麵mian,並bing硫liu化hua在zai皮pi帶dai內nei,保bao護hu導dao線xian不bu產chan生sheng疲pi勞lao損sun壞huai。
以(yi)前(qian)研(yan)製(zhi)的(de)在(zai)皮(pi)帶(dai)中(zhong)埋(mai)設(she)導(dao)線(xian)的(de)檢(jian)測(ce)裝(zhuang)置(zhi)的(de)另(ling)一(yi)個(ge)缺(que)點(dian)是(shi)導(dao)線(xian)和(he)皮(pi)帶(dai)上(shang)的(de)橡(xiang)膠(jiao)混(hun)合(he)物(wu)之(zhi)間(jian)常(chang)因(yin)時(shi)間(jian)長(chang)而(er)容(rong)易(yi)發(fa)生(sheng)化(hua)學(xue)反(fan)應(ying),從(cong)而(er)破(po)壞(huai)了(le)導(dao)線(xian)接(jie)頭(tou)的(de)導(dao)電(dian)性(xing),導(dao)致(zhi)誤(wu)動(dong)作(zuo)。為(wei)了(le)解(jie)決(jue)這(zhe)個(ge)問(wen)題(ti),德(de)國(guo)用(yong)直(zhi)徑(jing)較(jiao)小(xiao)的(de)鍍(du)鋅(xin)鋼(gang)繩(sheng)作(zuo)為(wei)導(dao)線(xian),該(gai)導(dao)線(xian)埋(mai)設(she)在(zai)距(ju)皮(pi)帶(dai)承(cheng)載(zai)而(er)一(yi)定(ding)距(ju)離(li)的(de)皮(pi)帶(dai)上(shang)麵(mian)層(ceng)內(nei),平(ping)行(xing)於(yu)皮(pi)帶(dai)表(biao)麵(mian)。在(zai)導(dao)線(xian)的(de)接(jie)頭(tou)區(qu)內(nei),相(xiang)對(dui)的(de)導(dao)線(xian)互(hu)相(xiang)擰(ning)緊(jin),導(dao)線(xian)接(jie)頭(tou)處(chu)的(de)折(zhe)合(he)端(duan)罩(zhao)有(you)輕(qing)合(he)金(jin)護(hu)套(tao),從(cong)而(er)使(shi)導(dao)線(xian)避(bi)免(mian)接(jie)觸(chu)皮(pi)帶(dai)上(shang)部(bu)的(de)橡(xiang)膠(jiao)混(hun)合(he)物(wu),提(ti)高(gao)了(le)係(xi)統(tong)的(de)可(ke)靠(kao)性(xing)。
還有些國家在皮帶中埋設導電橡膠、光導纖維等。此類保護裝置的缺點是工藝複雜、成木高。另外,從某種意義上說,由於嵌入物與橡膠間有一個相融性的問題,如果處理不善,會降低皮帶的強度。
(2)超聲波掃描技術
超聲波探傷為無損檢測的一種重要手段,它與激光、紅外、同位素並稱為現代科學技術的四支尖兵。日木、英國、澳大利亞先後在80年代末和90年代初、中期,研製了用超聲波在非金屬皮帶中進行探傷的檢測器,並都獲得了專利。
①滾輪式超聲波檢測裝置
該檢測裝置由換能器、電子放大器和報警器組成,英國有其發明專利.dangpidaizhengchanggongzuoshi,meigefashehuannengqiyigaipinlvfashechaoshengbo,jieshouhuannengqijiangjingguoyidingshijianhoushoudaohuibo。dangpidaifashengzongxiangsilieshigushi,jieshouqijieshoudaodexinhaobipidaiwanhaoshishoudaodexinhaoruo,erqiejieshoudaoxinhaodeshijianbipidaiwanhaoshishoudaodeshijianyaochang。zongxiangsiliedeshigushifoufashengkegenjupidaixinhaodeqiangruohexinhaochixudeshijianlaipanding。weici,gaizhuangzhiketigongzuoweipidaizongxiangsiliechengdudeyubaohuozhezuoweixianzhisunhuaichengduerzidongtingzhipidaiyunxingdezhuangzhi。
該裝置的超聲波是通過耦合到皮帶上的,中間環節多,其耦合問題有一定的難度,目前都用在地麵的輸送機上。
水耦合超聲波檢測裝置
通常水可作為耦合超聲波的耦合劑,因其聲阻與橡膠的聲阻相接近。因此約有95%的超聲波能通過水與橡膠的交界而傳播。澳大利亞的芒特艾薩礦就采用這種檢測裝置。它由換能器、電子放大器、跟隨器和水箱組成。
該(gai)裝(zhuang)置(zhi)目(mu)前(qian)已(yi)廣(guang)泛(fan)用(yong)於(yu)露(lu)天(tian)礦(kuang)的(de)皮(pi)帶(dai)運(yun)輸(shu)機(ji)上(shang),其(qi)缺(que)點(dian)是(shi)係(xi)統(tong)設(she)備(bei)較(jiao)多(duo),同(tong)時(shi),還(hai)有(you)一(yi)個(ge)耦(ou)合(he)問(wen)題(ti)沒(mei)有(you)完(wan)全(quan)解(jie)決(jue),所(suo)以(yi)水(shui)流(liu)流(liu)型(xing)的(de)最(zui)佳(jia)化(hua)是(shi)目(mu)前(qian)芒(mang)特(te)艾(ai)薩(sa)礦(kuang)至(zhi)今(jin)仍(reng)在(zai)研(yan)究(jiu)的(de)問(wen)題(ti)。
(3)X光探傷
德國萊茵一斯發州TUV協會發明了用X光連續探傷的方法,來檢測皮帶內的腐蝕、斷繩、穿孔、鋼處繩變形和接頭不良等損傷,並準確地確定損傷的位置。該裝置X光探測器、圖像顯示器和報警裝置組成。在帶速3. 7m/s以下的皮帶探傷時,皮帶的運行和損壞情況能自動錄入錄相帶,以供分析用,其分辨精度可達2mm。
(4)擺動框架式檢測裝置
rimuhengbinxiangjiaogongsifamingyizhongcixingchuanganqidejiancezhuangzhi,taanzhuangzaiduogehuanchongtuogunzuchengdekuangjiashang。gaikuangjiaxuanguazaichuizhianzhuangdepianxingdanhuangshang,zaikuangjiadeduantouzhuangyoucixingchuanganqi,pidaiyidanfashengsilieshigu,qishuipingfangxiangshoulibizhengchangzhuangkuangxiadeshouliyaoda,chuanganqiyincifachubaojingxinhao。
(5)金屬線圈檢測器
美國Goodrich公司生產的金屬線圈型檢測器較之同類產品比較先進。其構造是,在輸送帶的底層每隔2050米mi,把ba一yi組zu金jin屬shu線xian圈quan橫heng向xiang放fang置zhi在zai帶dai芯xin內nei,外wai側ce有you一yi個ge發fa送song傳chuan感gan器qi,一yi個ge接jie受shou傳chuan感gan器qi,由you天tian線xian傳chuan送song信xin號hao,以yi檢jian測ce輸shu送song帶dai是shi否fou完wan好hao。當dang線xian圈quan的de一yi側ce在zai電dian磁ci波bo發fa送song傳chuan感gan器qi附fu近jin經jing過guo時shi,線xian圈quan將jiang有you感gan應ying電dian流liu,該gai電dian流liu產chan生sheng的de電dian磁ci波bo被bei另ling一yi側ce的de接jie受shou傳chuan感gan器qi截jie獲huo。如ru輸shu送song帶dai撕si裂lie,則ze線xian圈quan被bei切qie斷duan,輸shu送song機ji將jiang被bei迫po停ting運yun。
(6)導電橡膠檢測器
日(ri)木(mu)三(san)菱(ling)輸(shu)送(song)帶(dai)公(gong)司(si)為(wei)解(jie)決(jue)金(jin)屬(shu)線(xian)圈(quan)疲(pi)勞(lao)問(wen)題(ti)而(er)推(tui)出(chu)導(dao)電(dian)橡(xiang)膠(jiao)檢(jian)測(ce)器(qi)。導(dao)電(dian)橡(xiang)膠(jiao)粘(zhan)貼(tie)在(zai)輸(shu)送(song)帶(dai)底(di)而(er)且(qie)與(yu)特(te)殊(shu)的(de)托(tuo)輥(gun)裝(zhuang)置(zhi)連(lian)接(jie)。通(tong)過(guo)安(an)裝(zhuang)在(zai)特(te)殊(shu)托(tuo)輥(gun)中(zhong)的(de)開(kai)關(guan),電(dian)流(liu)能(neng)在(zai)托(tuo)輥(gun)與(yu)托(tuo)輥(gun)間(jian)流(liu)動(dong)。如(ru)輸(shu)送(song)帶(dai)被(bei)撕(si)裂(lie),則(ze)電(dian)流(liu)中(zhong)斷(duan),檢(jian)測(ce)器(qi)將(jiang)使(shi)運(yun)輸(shu)機(ji)停(ting)運(yun)。
(7)磁性橡膠檢測器
日木阪東化學公司的阪東III型xing磁ci性xing橡xiang膠jiao檢jian測ce器qi,有you一yi個ge插cha入ru橡xiang膠jiao裏li層ceng的de磁ci性xing膠jiao片pian,其qi兩liang極ji與yu輸shu送song帶dai的de運yun行xing方fang向xiang一yi致zhi,一yi根gen加jia強qiang的de去qu磁ci膠jiao片pian裝zhuang在zai磁ci性xing膠jiao片pian和he接jie受shou天tian線xian之zhi間jian。如ru輸shu送song帶dai被bei撕si裂lie,去qu磁ci膠jiao片pian從cong輸shu送song帶dai上shang撕si破po,接jie受shou線xian圈quan收shou到dao信xin號hao後hou控kong製zhi輸shu送song帶dai停ting車che。
shangshujizhongpidaisiliebaohuyujiancezhuangzhishiguowaibijiaoxianjindechanpin,yincizhexiechanpinzaiguowaihenduochangkuangdouyousuocaiyong,danshimouxiechanpinhaibushihenchengshuhewending,youdaijinyibujinxingyanjiuhewanshan。guoneiduipidaisiliefangmiandeyanjiufazhanbijiaohuanman,zhuyaoshicong90年(nian)代(dai)開(kai)始(shi),由(you)於(yu)理(li)論(lun)和(he)技(ji)術(shu)方(fang)麵(mian)的(de)不(bu)成(cheng)熟(shu),國(guo)內(nei)產(chan)品(pin)主(zhu)要(yao)集(ji)中(zhong)在(zai)對(dui)皮(pi)帶(dai)運(yun)輸(shu)機(ji)的(de)改(gai)造(zao)和(he)對(dui)皮(pi)帶(dai)運(yun)行(xing)時(shi)的(de)外(wai)測(ce)裝(zhuang)置(zhi)的(de)研(yan)究(jiu)上(shang)。下(xia)麵(mian)就(jiu)國(guo)內(nei)比(bi)較(jiao)先(xian)進(jin)的(de)皮(pi)帶(dai)撕(si)裂(lie)保(bao)護(hu)裝(zhuang)置(zhi)進(jin)行(xing)簡(jian)單(dan)的(de)介(jie)紹(shao)。
(1)棒型檢測器
zhezhongzhuangzhishibayigenbanghuoguanziwanquchengcaoxingtuogunzhuang,anzhuangzaicaoxingshusongdaixiamiandehuanchongtuogunzhijianercheng。zheyang,ruyoucichuanshusongdaidewuliao,gaiwuliaojiangbodongcaoxingbangpianzhuan,poshixianweikaiguanhuozaihechuanganqidongzuo,shidaishishusongjitingzhiyunzhuan。anzhuangshi,kebajigezheyangdecaoxingbangyonglianganlianzaiyiqi,kongzhiyigegongyongkaiguan。zhezhongjianceqianzhuangzaidaishishusongjidezhuangzaiduan,erqieyaoqiuhuanchongtuogunzhijianbixujuyoushidangdekongjianⅢ。
(2)弦線式裝置
該裝置由尼龍線作為探頭.jiangqianzhizaihuanchongtuogunzhijianchuanguoxiaokongyucaoxingdaixiabiaomiantiehe,xiandeyiduanzhuangyigedanhuangxianweikaiguan。dangcichuanshusongdaidewuliaobanzhucixianshi,baxianladuanhuozhanglizengjia,junkeshixianweikaiguandongzuo.
(3)漏料檢測器
這種檢測裝置由托盤、支點、平ping衡heng錘chui和he開kai關guan等deng組zu成cheng。當dang輸shu送song帶dai被bei撕si裂lie後hou,輸shu送song帶dai上shang的de物wu料liao通tong過guo裂lie口kou泄xie漏lou到dao托tuo盤pan裏li,物wu料liao的de重zhong量liang克ke服fu平ping衡heng錘chui的de重zhong量liang,使shi整zheng個ge裝zhuang置zhi繞rao支zhi點dian轉zhuan動dong,迫po使shi限xian位wei開kai關guan動dong作zuo。
zhezhongjianceqijiegoujiandan,jianzhafangbian。danshi,dangshusongdaibeisiliehou,zhiyoushusongdaishangyouwuliaoqieshusongdaideliekouzuyishiwuliaoxieloushi,cizhuangzhicainengqizuoyong,fouzejiumeiyoushenmeyongtu。ciwai,ruozaituopanshangjijuhuichenguoduoshi,kenenghuichanshengwudongzuo。suoyi,xuyaojingchangjianzhabingqinglihuichen。
(4)超聲波檢測器
這zhe種zhong裝zhuang置zhi由you超chao聲sheng波bo檢jian測ce和he傳chuan送song兩liang部bu分fen組zu成cheng。在zai輸shu送song帶dai容rong易yi被bei撕si裂lie的de托tuo輥gun之zhi間jian,再zai通tong過guo檢jian波bo器qi檢jian波bo後hou發fa出chu。安an裝zhuang上shang能neng夠gou產chan生sheng超chao聲sheng波bo的de導dao波bo管guan,使shi之zhi產chan生sheng超chao聲sheng波bo振zhen蕩dang,當dang皮pi帶dai輸shu送song機ji處chu於yu正zheng常chang運yun行xing狀zhuang態tai時shi,超chao聲sheng波bo發fa送song波bo、jieshoubozhengchang,fachuzhengchangdexinhaofasongbohejieshouboqizhuangtaibutongyidanshusongdaibeizongxiangsilie,daoboguanyinwanquersunhuai,zheshijiuhuifachushusongdaizongxiangsiliexinhao,shidaishishusongjitingji。
綜zong上shang所suo述shu,至zhi今jin我wo國guo仍reng缺que少shao較jiao為wei理li想xiang的de防fang撕si裂lie方fang麵mian的de監jian測ce手shou段duan和he裝zhuang置zhi應ying用yong於yu實shi踐jian。因yin此ci,皮pi帶dai撕si裂lie檢jian測ce裝zhuang置zhi需xu要yao進jin一yi步bu的de完wan善shan改gai進jin,那na麼me對dui皮pi帶dai撕si裂lie前qian後hou特te征zheng的de研yan究jiu具ju有you重zhong要yao的de理li論lun意yi義yi和he實shi際ji意yi義yi。
相關輸送機產品:
1、刮板輸送機
2、螺旋輸送機
3、皮帶輸送機



