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其汇机电为你讲述伺服电机惯量问题

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其汇机电为你讲述伺服电机惯量问题

发布日期:2018-07-24 作者:其汇机电 点击:

ZAISIFUXITONGXUANXINGJIDIAOSHIZHONG,CHANGHUIPENGDAOGUANLIANGWENTI。

球探体育    QIJUTIBIAOXIANWEI:  ZAISIFUXITONGXUANXINGSHI,CHUKAOLVDIANJIDENIUJUHEEDINGSUDUDENGDENGYINSUWAI,WOMENHAIXUYAOXIANJISUANDEZHIJIXIEXITONGHUANSUANDAODIANJIZHOUDEGUANLIANG,ZAIGENJUJIXIEDESHIJIDONGZUOYAOQIUJIJIAGONGJIANZHILIANGYAOQIULAIJUTIXUANZEJUYOUHESHIGUANLIANGDAXIAODEDIANJI;ZAIDIAOSHISHI,ZHENGQUESHEDINGGUANLIANGBICANSHUSHICHONGFENFAHUIJIXIEJISIFUXITONGZUIJIAXIAONENGDEQIANTI。CIDIANZAIYAOQIUGAOSUGAOJINGDUDEXITONGSHANGBIAOXIANYOUWEITUCHU,ZHEIYANG,JIUYOULEGUANLIANGPIPEIDEWENTI。

SHENMESHI“GUANLIANGPIPEI”?

球探体育   1、GENJUNIUDUNDIERDINGLV:

“JINJIXITONGSUOXULIJUT = XITONGCHUANDONGGUANLIANGJ × JIAOJIASUDUθJIAO”。

JIASUDUθYINGXIANGXITONGDEDONGTAITEXING,θYUEXIAO,ZEYOUKONGZHIQIFACHUZHILINGDAOXITONGZHIXINGWANBIDESHIJIANYUEZHANG,XITONGFANYINGYUEMAN。RUGUOθBIANHUA,ZEXITONGFANYINGJIANGHUKUAIHUMAN,YINGXIANGJIAGONGJINGDU。YOUYUMADAXUANDINGHOUZUIDASHUCHUTZHIBUBIAN,RUGUOXIWANGθDEBIANHUAXIAO,ZEJYINGGAIJINLIANGXIAO。


2、进给轴的总惯量“J=伺服电机的旋转惯性动量JM + 电机轴换算的负载惯性动量JL。负载惯量JL由(以平面金切机床为例)工作台及上面装的夹具和工件、螺杆、联轴器等直线和旋转运动件的惯量折合到马达轴上的惯量组成。 JM为伺服电机转子惯量,伺服电机选定后,此值就为定值,而JL则随工件等负载改变而变化。如果希望J变化率小些,则最好使JL所占比例小些。这就是通俗意义上的“惯量匹配”。


球探体育3、“GUANLIANGPIPEI”RUHEQUEDING?

球探体育    CHUANDONGGUANLIANGDUISIFUXITONGDEJINGDU,WENDINGXING,DONGTAIXIANGYINGDOUYOUYINGXIANG。

球探体育GUANLIANGDA,XITONGDEJIXIECHANGSHUDA,XIANGYINGMAN,HUISHIXITONGDEGUYOUPINLVXIAJIANG,RONGYICHANSHENGXIEZHEN,YINERXIANZHILESIFUDAIKUAN,YINGXIANGLESIFUJINGDUHEXIANGYINGSUDU,GUANLIANGDESHIDANGZENGDAZHIYOUZAIGAISHANDISUPAXINGSHIYOULI,YINCI,JIXIESHEJISHIZAIBUYINGXIANGXITONGGANGDUDETIAOJIANXIA,YINGJINLIANGJIANXIAOGUANLIANG。

球探体育    HENGLIANGJIXIEXITONGDEDONGTAITEXINGSHI,GUANLIANGYUEXIAO,XITONGDEDONGTAITEXINGFANYINGYUEHAO;GUANLIANGYUEDA,MADADEFUZAIYEJIUYUEDA,YUENANKONGZHI,DANJIXIEXITONGDEGUANLIANGXUHEMADAGUANLIANGXIANGPIPEICAIXING。 BUTONGDEJIGOU,DUIGUANLIANGPIPEIYUANZEYOUBUTONGDEXUANZE,QIEYOUBUTONGDEZUOYONGBIAOXIAN。BUTONGDEJIGOUDONGZUOJIJIAGONGZHILIANGYAOQIUDUIJLYUJMDAXIAOGUANXIYOUBUTONGDEYAOQIU,DANDADUOYAOQIUJLYUJMDEBIZHIXIAOYUSHIYINEI。

   

高精密行星减速机

球探体育 ZONGZHI,GUANXINGPIPEIDEQUEDINGXUYAOGENJUJIXIEDEGONGYITEDIANJIJIAGONGZHILIANGYAOQIULAIQUEDING。 DUIYUJICHUJINSHUQIEXUEJICHUANG,DUIYUSIFUDIANJILAISHUO,YIBANFUZAIGUANLIANGJIANYIYINGXIAOYUDIANJIGUANLIANGDE5BEI。GUANLIANGPIPEIDUIYUDIANJIXUANXINGHENZHONGYAODE,TONGYANGGONGLVDEDIANJI,YOUXIEPINPAIYOUFENQINGGUANLIANG,ZHONGGUANLIANG,HUODAGUANLIANG。QISHIFUZAIGUANLIANGZUIHAOHAISHIYONGGONGSHIJISUANCHULAI。CHANGJIANDEXINGTIGUANLIANGJISUANGONGSHIZAIYIQIANXUEDESHULIDOUYOUXIANCHENGDE(KEYIQUCHAJIXIESHEJISHOUCE)。

惯量的理论计算的功式?

   精密行星减速机球探体育惯量计算都有公式,至于多重负载,比如齿轮又带齿轮,或涡轮蜗杆传动,只要分别算出各转动件惯量然后相加即是系统惯量,电机选型时建议根椐不同的电机进行选配。负载的转动惯量肯定是要设计时通过计算算出来拉,如果没有这个值,电机选型肯定是不那么合理的,或者肯定会有问题的,这是选伺服的最重要的几个参数之一。

球探体育    ZHIYUDIANJIGUANLIANG,DIANJIYANGBENSHOUCESHANGDOUYOUBIAOZHU。DANGRAN,DUIMOUXIESIFU,KEYITONGGUODIAOZHENGSIFUDEGUOCHENGCECHUFUZAIDEGUANLIANG,ZUOWEILILUNSHEJIZHONGDEJISUANDECANKAO。BIJINGZAISHEJIJIEDUAN,HENDUOLEISIMOCAXISHUZHILEIDECANSHUZHINENGGENJUJINGYANLAICAI,BUKENENGZHUNQUE。 LILUNSHEJIZHONGDEJISUANDEGONGSHI:(JINGONGCANKAO)TONGCHANGJIANGZHUANDONGGUANLIANGJYONGFEILUNJUGD2LAIBIAOSHI,TAMENZHIJIANDEGUANXIWEIJ=mp^2=GD^2/4g。SHIZHONGmYUG-ZHUANDONGBUFENDEZHILIANG(kg)YUZHONGLIANG(N);D-GUANXINGBANJINGYUZHIJING(m);g=9.81m/s2-ZHONGLIJIASUDU FEILUNGUANLIANG=SUDUBIANHUALV*FEILUNJU/375。DANGRAN,LILUNYUSHIJIZONGHUIYOUPIANCHADE,YOUXIEDIQU(RUZAIOUZHOU),YIBANSHICAIYONGZHONGJIANZHITONGGUOSHIJICESHIDEDAO。ZHEIYANG,XIANGDUIWOMENDEJINGYANGONGSHIYAOZHUNQUEYIXIE。BUGUO,ZAIMUQIANHAISHIXUYAOJISUANDE,YEYOUGUDINGGONGSHIKEYIQUCHAJIXIESHEJISHOUCEDE。

GUANYUMOCAXISHU?

球探体育    GUANYUMOCAXISHU,YIBANDIANJIXUANZEZHISHIKAOLVYIGEXISHUJIADAOJISUANGUOCHENGZHONG,ZAIDIANJIDIAOZHENGSHITONGCHANGDOUBUHUIKAOLV。BUGUO,RUGUOZHEIGEYINSUHENDA,HUOZHEJIANG,ZUYIYINGXIANGDIANJIDIAOZHENG,YOUXIERIXITONGYONGSIFU,JUCHENGYOUYIGECANSHUSHIYONGLAIZHUANMENCESHIDE,ZHIYUSHIFOUHAOYONG,BENRENMEIYOUYONGGUO,GUJIYINGGAISHIHAOYONGDE。

还有,黏性阻尼跟机械结构设计、加工、装配等相关,这些在选型时是必须考虑的。而且跟摩擦系数也是息息相关的,正是因为加工水平不够才造成的摩擦系数不定,不同点相差较大,甚至技术工人装配水平的差异也会导致很大的差异,这些在电机选型时必须要考虑的。这样,才会有保险系数,当然归根结底还是电机功率的问题。

SIFUDIANJIXUANXING

球探体育ZAIXUANZEHAOJIXIECHUANDONGFANGANYIHOU,JIUBIXUDUISIFUDIANJIDEXINGHAOHEDAXIAOJINXINGXUANZEHEQUEREN。

1、选型条件:一般情况下,选择伺服电机需满足下列情况: 

球探体育MADAZUIDAZHUANSU>XITONGSUOXUZHIZUIGAOYIDONGZHUANSU。

MADADEZHUANZIGUANLIANGYUFUZAIGUANLIANGXIANGPIPEI

LIANXUFUZAIGONGZUONIULI≤MADAEDINGNIULI

球探体育MADAZUIDASHUCHUNIULI>XITONGSUOXUZUIDANIULI(JIASUSHINIULI)

2、选型计算:

GUANLIANGPIPEIJISUAN(JL/JM) 

球探体育HUIZHUANSUDUJISUAN(FUZAIDUANZHUANSU,MADADUANZHUANSU)

FUZAINIUJUJISUAN(LIANXUFUZAIGONGZUONIUJU,JIASUSHINIUJU)



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