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JR系列

JR系列

来源:子昂电机维修 日期:2018-09-28 11:37:48

JR系列

产品应用:

  JS、JR系(xi)列中型电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)可驱动(dong)(dong)(dong)各种不(bu)(bu)同(tong)的机(ji)(ji)(ji)(ji)械,如通风机(ji)(ji)(ji)(ji)、压(ya)缩机(ji)(ji)(ji)(ji)、水泵、破碎机(ji)(ji)(ji)(ji)、球磨机(ji)(ji)(ji)(ji)、切(qie)削(xue)机(ji)(ji)(ji)(ji)床(chuang)、运输机(ji)(ji)(ji)(ji)械及其它设备,可供煤矿、机(ji)(ji)(ji)(ji)械工业(ye)、发(fa)电(dian)厂及各种工矿企(qi)业(ye)中作原动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)用。JS系(xi)列为(wei)(wei)鼠笼转子(zi)三相(xiang)异步(bu)电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)JR系(xi)列为(wei)(wei)绕线转子(zi)三相(xiang)异步(bu)电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)JS系(xi)列电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)符(fu)合部(bu)颁标准JB563-64技(ji)术条件的规定JR系(xi)列电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)符(fu)合部(bu)颁标准JB564-64技(ji)术条件的规定本系(xi)列电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)为(wei)(wei)防(fang)护式(shi)。根据用户(hu)需(xu)要,也可制(zhi)成管道通风式(shi)。防(fang)护式(shi)电(dian)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)应装置在(zai)海拔(ba)高(gao)度不(bu)(bu)超过1,000米,周围空(kong)气(qi)温度不(bu)(bu)高(gao)于+40℃,不(bu)(bu)低于0℃,空(kong)气(qi)清洁,无酸、碱等腐触性气(qi)体的室内。

 

  电(dian)动(dong)(dong)(dong)(dong)(dong)机不允许在(zai)含有(you)爆炸(zha)性气(qi)(qi)体或尘埃(ai)较多的(de)环境(jing)中(zhong)工作。当电(dian)动(dong)(dong)(dong)(dong)(dong)机周围空气(qi)(qi)的(de)温度超过上述规定或空气(qi)(qi)不清洁时,应(ying)采用管(guan)道通风(feng)方(fang)式。此(ci)时通入电(dian)动(dong)(dong)(dong)(dong)(dong)机两端的(de)冷(leng)却空气(qi)(qi)温度应(ying)为0℃~+40℃,并且(qie)应(ying)保证管(guan)道和电(dian)动(dong)(dong)(dong)(dong)(dong)机内部的(de)空气(qi)(qi)压(ya)力高(gao)于周围空气(qi)(qi)的(de)压(ya)力,必要时应(ying)加装鼓(gu)风(feng)机、滤尘器等。JS系列鼠型电(dian)动(dong)(dong)(dong)(dong)(dong)机允许全电(dian)压(ya)直接(jie)(jie)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)。如用户的(de)电(dian)网不允许全电(dian)压(ya)直接(jie)(jie)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)时,可(ke)以采用降(jiang)低电(dian)压(ya)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong),但此(ci)时起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)转矩将与起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)电(dian)压(ya)成(cheng)平方(fang)关系降(jiang)低。JR系列电(dian)动(dong)(dong)(dong)(dong)(dong)机在(zai)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)时必须预先在(zai)转子回路内接(jie)(jie)入起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)变阻器。不允许将转子绕组直接(jie)(jie)短(duan)接(jie)(jie)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)(dong)。

  产品特点:

  二、结构简述

  电(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)(ji)的(de)的(de)基本安(an)装(zhuang)型式(shi)为机(ji)(ji)(ji)座带底脚卧式(shi)安(an)装(zhuang)。所(suo)有型号的(de)电(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)(ji)都可(ke)采用联轴器与(yu)被驱(qu)动(dong)(dong)(dong)(dong)机(ji)(ji)(ji)械联接。电(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)(ji)采用两(liang)侧(ce)对称(cheng)的(de)径(jing)向通风系统,冷却空(kong)气自两(liang)侧(ce)端盖的(de)进(jin)风口进(jin)入,一部分(fen)经(jing)过(guo)电(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)(ji)转子上的(de)风扇或风叶片吹过(guo)定(ding)子线(xian)圈的(de)端接部分(fen),另一部分(fen)经(jing)过(guo)转子铁芯(xin)中的(de)径(jing)向通风槽,然(ran)后由(you)机(ji)(ji)(ji)座侧(ce)面的(de)出风口逸出。

  管道通风(feng)式(shi)电(dian)动机的(de)通风(feng)系统与(yu)上述(shu)相同(tong)。

  电动机的(de)轴(zhou)承(cheng)采用(yong)滚动轴(zhou)承(cheng),所用(yong)的(de)轴(zhou)承(cheng)牌(pai)号见表1,轴(zhou)承(cheng)润滑脂牌(pai)号为锂基润滑脂ZL-3。

  从电动机的(de)轴伸(shen)端看,电动机出线盒在机座的(de)右(you)侧。

  JS系列电(dian)(dian)动(dong)机(ji)可(ke)以根据用户的要求(qiu)制成双轴伸,其中任一个轴伸均可(ke)用以传递电(dian)(dian)动(dong)机(ji)的额(e)定功率(lv)(球轴承端只能用联轴器传动(dong))。

  JR系列电动机在降(jiang)低转矩的条件下,允许(xu)长期(qi)减速运转。此(ci)时(shi)允许(xu)输出(chu)的功(gong)率和转矩与(yu)转速的对(dui)应(ying)关系应(ying)符合(he)表2之规定。

  如果电动机的的负载转(zhuan)矩(ju)(驱动鼓风机、水(shui)泵等时)和转(zhuan)速(su)成(cheng)平方关系下降时,电动机允许在(zai)低转(zhuan)速(su)下长期运转(zhuan)。

  三、型号含义

  如:JS115-6表示鼠笼型转子异步电(dian)动机,11号机座,铁芯长(zhang)度(du)为5号,6极。

  JR115-6表示绕(rao)线型转(zhuan)子异步电动(dong)机,11号机座,铁(tie)芯(xin)长度为5号,6极(ji)。

  JR系列电(dian)动机分有电(dian)刷提(ti)升和短路(lu)装(zhuang)置(zhi)与无电(dian)刷提(ti)升和短路(lu)装(zhuang)置(zhi)两种(zhong)。

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