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颚式破碎机齿板磨损分析

发布时间:2019-02-25    12:02:25浏览次数:

摘要:从颚式破碎机的运动轨迹变化规律、齿板受力分析及破碎腔形状等方面综合分析了破碎机齿板磨损的原因,提出了延长齿板寿命的措施。

齿板是颚式破碎机主要易损件。工作中齿板与物料直接接触,受到研磨。齿板用高锰钢制造,常常很快会磨损失效。1985年破碎研磨专业组在某某石料厂对13个制造厂生产的PE-250×400颚式破碎机39副高锰钢系齿板进行了负荷试验。试验用石料为青石,其抗压强度为274.4-294MPa。测试结果每副齿板的平均磨损性能为:

DANWEIPOSUINENGLI 815t/FU

篮球竞彩appSHIYONGSHOUMING 95h/FU

篮球竞彩appDANWEIMOHAO 45g/t

篮球竞彩appYOUCIKEJIAN,CHIBANMOSUNSHIFEICHANGYANZHONGDE。JUTONGJI,MUQIANQUANGUOESHIPOSUIJIDEYONGYOULIANGYUE40000TAIZUOYOU。ANZHAOZHEIYISHUZIGUSUAN,MEINIANYAOXIAOHAODALIANGDEGAOMENGGANGZHUJIAN,ZENGJIALEPOSUIWULIAODECHENGBEN。SUOYI,CHIBANMOSUNWENTIYICHENGWEIRENMENSHIFENGUANZHUDEWENTI。

一、齿板磨损特征与原因

1、TEZHENG

篮球竞彩appESHIPOSUIJICHIBANMOSUNYUXUDUOYINSUYOUGUAN。QIZHONGBUTONGXINGSHIDEPOSUIJI,YOUYUQIYUNDONGTEXINGBUTONG,QICHIBANMOSUNYEBUTONG。TU1SUOSHIWEIGEZHONGXINGSHIPOSUIJICHIBANMOSUNDETEZHENG,JIANBAIESHIPOSUIJICHIBANSHOUMINGYAOBIFUBAIESHIPOSUIJIZHANG3-4BEI。

图1

2、YUANYINFENXI

(1)DONGECHIBAN

篮球竞彩appYIFUBAIESHIPOSUIJIWEILI,CONGTU1aKEYIKANCHU,GUDINGEXIABUMOSUNZUIDA,ERDONGEZAIZHONGBUMOSUNZUIDA。WEILESHUOMINGZHEIZHONGXIANXIANG,YONGJISUANJIZUOCHUCHIMIANSHANGGEDIANDEYUNDONGGUIJI,FENXIQISHUIPINGXINGCHENGHECHUIZHIXINGCHENGDEFENBUGUILV。FUBAIESHIPOSUIJIDONGEDESHUIPINGXINGCHENGSHICONGDONGESHANGBUDAOZHONGBUZHUJIANJIANXIAODE,ZAICONGZHONGBUDAOXIABUYOUZHUJIANZENGDA;CHUIZHIXINGCHENGSHICONGSHANGBUXIANGXIABUZHUJIANZENGDA。SHUIPINGXINGCHENGZUIXIAODEDIAN,XIANGDUILAISHUO,QICHUIZHIXINGCHENGSHIJIAODADE,YEJIUSHISHUOTADETEXINGZHInZUIDA。DONGEGONGZUOSHI,SHANGBUDEYUNDONGGUIJISHIJINSIYUYUANDETUOYUAN,DONGEKAOXIANGZUO、XIANGZUOXIAYUNDONGYASUIKUANGSHI。DONGEXIABUDEYUNDONGGUIJISHIJIDULAZHANGDETUOYUAN,DONGEKAOXIANGSHANG、XIANGZUOSHANGYUNDONGYASUIKUANGSHI。SUOYI,SHUIPINGXINGCHENGZUIXIAODEDIANSHIDONGESHANGBUDAOXIABUTUOYUANGUIJIBIANXINGDEGUODUDIAN。ZAIZHEIZHONGQINGKUANGXIA,DANGKUANGSHICONGSHANGBUPOSUIDAOZHONGBUSHI,JIANRUOLEPOSUIZUOYONG,SHIKUANGSHINANYICHONGFENPOSUIERZHILIUZAIZHONGBU。DANYOUYUZAIZHONGBUCHUIZHIXINGCHENGJIAODA,JUYOUQIANGZHIPAILIAOZUOYONG,SHIWULIAOJILIEYANMODONGECHIBAN,CONGERSHIDONGEZHONGBUMOSUNJIAJU。

(2)GUDINGECHIBAN

图2

TU2WEIPOSUIQIANGXIABUPOSUIKUANGSHISHISHOULIFENXITU。POSUILIRHYANZHEDONGECHIBANCHUIZHIFANGXIANGZUOYONGZAIWULIAOSHANG,TONGSHIZAILIAOKUAISHANGHAIZUOYONGZHEMOCALIF,QIFANGXIANGSHIYANZHECHIBANDEBIAOMIAN,BINGCHAOYOUSHANGFANG,BALIRHHEFHECHENG,DEDAOHELITH,TAYUGUDINGEBIAOMIANDEJIAODUSHIa+φ。YINWEIa+φSHIZHONGDAYUMOCAJIAOφ,YINCIHELITHDEFANGXIANGSHIZUOYONGZAIWULIAOSHANG,BINGQIEJINDAOMOCAZHUIFUJIN,ZHEIBIJIANGDAOZHIWULIAOYANZHEGUDINGECHIBANYUNDONG(HUADONG),CONGERCHANSHENGYANZHONGMOSUN。

TU1bSUOSHIZONGHEBAIDONGESHIPOSUIJI,DONGEHEGUDINGECHIBANMOSUNDOUSHIYANZHEZHENGGECHIBANGAODUJUNYUNMOSUNDE。TADEZONGMOSUNLIANGBIFUBAIESHIPOSUIJIYAOSHAO。ZHEISHIYOUYUZONGHEBAIDONGESHIPOSUIJIZHENGGECHIMIANSHANGYUNDONGGUIJISHIJUNYUNBIANHUADE,JITADETEZHENGZHIZAIZHENGGECHIMIANSHANGJIAOJUNYUN,GUIJIXINGZHUANGYEJIBENYIZHI。

(3)QIANGXINGYINGXIANG

a.CHIBANDEMOSUN

BIAO1

各种质量(kg) 活动齿板 固定齿板
新齿板重量 117 92
磨损后齿板重量 104 68
磨损重量 13 24
破碎物料重量 2098 2098

WOGUOESHIPOSUIJIDADOUCAIYONGZHIXIANXINGHEQUXIANXINGPOSUIQIANG。QIANZHEYIBANDUOYONGYUCUZHONGSUIPOSUIJI,POSUIYINGKUANGSHIJIAODUO;HOUZHEYIBANXISUIJIYINGYONGJIAODUO。BIAO1SUOLIESHUZHISHIDUIPE-250×400FUBAIPOSUIJIZHIXIANXINGPOSUIQIANGCHIBANMOSUNDECESHIJIEGUO。CONGBIAO1KEKANCHU,ZAIPOSUITONGYANGWULIAOQINGKUANGXIA,GUDINGCHIBANDEMOSUNLIANGSHIHUODONGCHIBANDEJIN2BEI。BIAO2SUOLIESHUJUWEIPEX-250×1000XISUIESHIPOSUIJIGUDINGECAIYONGQUXIANXING、DONGECAIYONGZHIXIANXINGPOSUIQIANGDECHIBANMOSUNCESHIJIEGUO。CONGBIAO2KEJIAN,CAIYONGQUXIANXINGPOSUIQIANGKEYIGAISHANGUDINGCHIBANDEMOSUNCHENGDU,ZHEISHIYOUYUQUXIANXINGPOSUIQIANGSHIPAIKUANGKOUDUSAIDIANSHANGYI,WULIAOKONGXILVDA,PAIKUANGKOUBUYIFASHENGDUSAIDEYUANYIN。

BIAO2

  活动齿板 固定齿板
新齿板重量(kg) 400.5 296.5
磨损后齿板重量(kg) 360.0 270.0
磨损量(kg) 40.5 26.5
破碎石料 5545 5545

b.CHIXING

ESHIPOSUIJIDECHIBANTONGCHANGCAIYONGDESHISANJIAOXINGCHIHUOTIXINGCHI。YIBANTIXINGCHIBISANJIAOXINGCHINAIMO,CHIBANSHIYONGSHOUMINGZHANG。DANSANJIAOXINGCHIDEJINENGJIAOHAO,ZAIXIANGTONGPOSUILIZUOYONGXIADUIYANSHICHANSHENGDEYALIDA,RONGYIBAYANSHIYASUI。

二、提高齿板寿命的措施

篮球竞彩app1、GAISHANPOSUIJIDEYUNDONGTEXING

(1)JIANGDIXUANGUAGAODU

篮球竞彩appJIANGDIFUBAIESHIPOSUIJIDONGEDEXUANGUAGAODU,KEGAISHANDONGEDEYUNDONGTEXING,ZENGJIASHUIPINGXINGCHENG,JIANXIAOCHUIZHIXINGCHENG。ZHEIYANGJIKETIGAOPOSUIJIDESHENGCHANLV,YOUKEJIANXIAOCHIBANMOSUN,SHIGAISHANFUBAIESHIPOSUIJIGONGZUOXINGNENGDEYOUXIAOTUJINGZHIYI。

(2)YOUHUASHEJIJIEGOUCANSHU

CAIYONGZHEIZHONGFANGFASHEJIESHIPOSUIJI,KESHIQIJIEGOUGENGHELI、CANSHUGENGXIANJIN,ZAIYANZHIPE-250AXINGFUXUANGUAESHIPOSUIJISHI,WOMENDUIJIEGOUCANSHUJINXINGLEYOUHUASHEJI,SHOUDAOLELIANGHAODEXIAOGUO。XINJIUPOSUIJICHIBANMOSUNJIANBIAO3。CONGBIAO3KANCHU,CAIYONGYOUHUASHEJIDEYANGJIDANWEICHANLIANGCHIBANZONGMOSUNLIANGWEI11.26g,ERJIUJIWEI17.7g。YANGJICHIBANSHOUMINGBIJIUJIYANZHANG40%。

BIAO3

测定项目 活动齿板 固定齿板
PE250A PE250 PE250A PE250
齿板重量(kg) 91 117 89 92
磨损后的齿板重量(kg) 77 104 75 68
破碎物料重量(kg) 2507 2098 2507 2098
单位产量齿板磨损量(g) 5.88 6.26 5.38 11.44

(3)CAIYONGFUZHICHENGJIEGOU

GAIBIANFUBAIPOSUIJICHUANDONGJIAO,SHICHUANDONGJIAODAYU90°。FUZHICHENGPOSUIJIDECHUIZHIXINGCHENGBIZHENGZHICHENGPOSUIJIXIAO1.5BEI,ERYOUBAOCHILEYUANLAIDESHUIPINGXINGCHENG,YINERGAISHANLEYUNDONGTEXING。DANGDONGECHUYUYASUIXINGCHENGSHI,QIYUNDONGFANGXIANGSHANGYOUYIXIANGXIADEYUNDONGFENLIANG,ZHEIYOULIYUPOSUIWULIAOXIANGXIAYUNDONG,JIANSHAODUSAI,JIANGDICHIBANMOSUN,YANZHANGCHIBANSHOUMING。

2、HELISHEJIPOSUIQIANGXING

(1)QIANGXINGYOUHUASHEJI

篮球竞彩appYIBANPOSUIJI,YOUYUPOSUIQIANGZHONGSHANGBUJIEMIANTONGGUONENGLIZUIDA,ERPAILIAOKOUCHULINENGLIZUIXIAO。ERQIE,SUIPOSUIJIGUIGECHICUNZENGJIA,POSUIQIANGSHANGXIAJIEMIANTONGGUONENGLICHAZHIZENGDA。GENJUPOSUIQIANGGEJIEMIANTONGGUONENGLIDEBIANHUAGUILV,YIJINIEJIAOYUTONGGUONENGLIDEGUANXI,JIANGPOSUIQIANGGAODUFENCHENG3DUAN,JIh1、h2、h3。GEDUANDENIEJIAOZHIJIANDEGUANXIWEIa2>a1>a3,ERQIEh3DUANSHIYIQUXIANDUANBINGWEIBIANNIEJIAO(RUTU3SUOSHI)。ZHEIYANG,JIBAOZHENGPOSUIQIANGYOUJIAOGAODECHULINENGLI,YOUJIANGDIPOSUIQIANGGAODU。CIWAI,ZHEIZHONGJIETIXINGPOSUIQIANG,SHANGQIANGRONGYIXINGCHENGJIAOHOUDELIAOCENG,ZENGJIACENGJIANPOSUIZUOYONG,ERJIANSHAOCHIBANMOSUN,SHICHULINENGLITIGAO15-25%。CHIBANSHOUMINGBIYUANLAITIGAOYIBEIYISHANG。

图3

(2)CAIYONGS-TXINGPOSUIQIANG

图4

篮球竞彩appRUTU4SUOSHI,ZHEIZHONGPOSUIJIQIANGXINGSHIZAIPOSUIJIXIABUYOUYIGEXIANGTONGQULVDEHUXINGPINGXINGQU。WULIAODAODAPINGXINGQUHOU,QILIDUYIJINGBIANXIAO,BUDANSHOUDAOPOSUIEBANDECENGYAFENSUI,TONGSHIYOUYUWULIAOXIELIAOSUDUBIANXIANGHEXIELIAOLUJINGZENGZHANG,JIANGDILEWULIAODUSAIPAILIAOKOUDEJILV,JIANSHAOLECHIBANMOSUN。

3、CAIYONGNAIMOCAILIAO

TIGAOPOSUIJICHIBANSHOUMING,CHULECONGGAIJINPOSUIJIDEXINGNENG、JIEGOUFANGMIANKAOLVWAI,HAIYINGYANZHIHECAIYONGNAIMOXINGCAIZHI。RUCAIYONGBAOZHAYINGHUAFACHULIGAOMENGGANGZHUJIAN,TIGAOLEGONGZUOBIAOMIANDEYINGDU,SHISHOUMINGTIGAO40%ZUOYOU,DIGENAIMOCHENBANKETIGAOSHOUMINGYIBEIZUOYOU。

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