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制动器(qi)知识

制动器经常出现的问题有哪些,怎么维护呢?

来源:http://impnow.com/news/340.html添加时间:2020-11-14

  制(zhi)动(dong)器是(shi)机械(xie)设(she)备、汽车(che)等(deng)设(she)备里不可(ke)缺少的(de)装置(zhi),在它(ta)的(de)工(gong)作(zuo)中总是(shi)会出(chu)现很多问题,如(ru):气阻、制(zhi)动(dong)力不足、有噪声等(deng)情况,那么当出(chu)现这些(xie)问题时,要怎么维护呢?

  制动器经常出现的问题:

  一、气阻

  制(zhi)动(dong)(dong)器的(de)(de)(de)发热部位(wei)集中在很窄的(de)(de)(de)制(zhi)动(dong)(dong)衬块(kuai)上(shang),其(qi)单(dan)位(wei)压力又比鼓式制(zhi)动(dong)(dong)器大,制(zhi)动(dong)(dong)衬块(kuai)和钳体的(de)(de)(de)活(huo)塞直接(jie)接(jie)触,因此(ci)制(zhi)动(dong)(dong)时的(de)(de)(de)热量极(ji)易传给(ji)制(zhi)动(dong)(dong)液。这样,使(shi)盘式制(zhi)动(dong)(dong)器容易产生气(qi)(qi)阻(zu)现象。但是,若采取相应的(de)(de)(de)措施,也可(ke)防止气(qi)(qi)阻(zu)现象的(de)(de)(de)发生。

  防止制动液沸点降(jiang)低(di)

  植物油型制(zhi)动(dong)液无(wu)法满足盘式制(zhi)动(dong)器(qi)的(de)使(shi)用要求,因此(ci)必须使(shi)用高沸点(dian)的(de)合成(cheng)制(zhi)动(dong)液。但是,合成(cheng)制(zhi)动(dong)液具(ju)有吸水特性。在某些使(shi)用条件中,沸点(dian)下降很快。为防止制(zhi)动(dong)液沸点(dian)的(de)明显下降,一(yi)般(ban)常采用以下一(yi)些措施:

  1、定期更换(huan)制动液(ye)(ye)。夏季3个(ge)月(yue)或行驶里程大于500km;冬季6个(ge)月(yue)或行驶1000km后,即将制动液(ye)(ye)更新。

  2、不同性质的制动液不可(ke)互换使用(yong)或混用(yong)。

  3、密闭保存制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)液。要(yao)限制(zhi)(zhi)(zhi)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)液温度升高,应(ying)保证活塞能灵活地(di)自(zi)动(dong)(dong)(dong)(dong)回(hui)位,避免因(yin)锈蚀、发卡使制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)器打滑或发咬。当(dang)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)衬(chen)块(kuai)磨(mo)耗(hao)过多时(shi),传(chuan)到(dao)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)液的(de)热量(liang)也会(hui)迅速增加。因(yin)此,应(ying)及时(shi)更换(huan)磨(mo)耗(hao)了的(de)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)衬(chen)块(kuai)。

  二、制动力不足

  制动器制动力不足时,可采用下述(shu)方(fang)法予以解决:

  1、改变制(zhi)动衬块材料

  可换用稍软的(de)制(zhi)动衬块材料(liao),使摩(mo)擦系数(shu)相对得(de)到(dao)提高,制(zhi)动力变大。

  2、清除制动(dong)衬块排屑槽中的异物

  如果(guo)制动衬块的排屑槽被异(yi)物覆盖,制动时(shi)将失却(que)排出尘土、刮去水分的作用,使制动力降低(di)。

  三、制动时有噪声

  制动时(shi),若(ruo)有“嗄(a)吱、嗄(a)吱”的噪(zao)声时(shi),可采用下述方法排除:

  1、在(zai)制(zhi)动器钳体活塞和(he)制(zhi)动衬(chen)片之(zhi)间(jian),加(jia)一防噪声片,使活塞上形成一倾(qing)斜度。从(cong)而保证(zheng)制(zhi)动时制(zhi)动衬(chen)块和(he)制(zhi)动盘(pan)柔性接触,使制(zhi)动衬(chen)块在(zai)正(zheng)常磨损状态下无(wu)异常噪声出(chu)现。

  2、选择材(cai)质软(ruan)些、密(mi)度小些的制动(dong)衬块材(cai)料。

  3、制动(dong)时,制动(dong)衬(chen)块(kuai)向一侧(ce)移动(dong),可能出现撞(zhuang)击声(sheng)响。这是由于制动(dong)衬(chen)块(kuai)和钳(qian)体之间(jian)的(de)间(jian)隙过(guo)大所(suo)致,可用(yong)镀覆焊锡的(de)方法消除(chu)间(jian)隙。但须注意(yi),应(ying)使焊锡镀覆在(zai)与行驶方向相反的(de)一侧(ce),防止在(zai)制动(dong)力的(de)作用(yong)下(xia)失(shi)效。

  四、前轮轴承损坏

  制(zhi)动钳体(ti)(ti)一(yi)般(ban)装配在转向(xiang)节后(hou)侧,这可使制(zhi)动时相对地(di)减轻前轮轴(zhou)承的(de)负荷。但(dan)是(shi),有的(de)车(che)型把钳体(ti)(ti)装于(yu)轴(zhou)的(de)前方,加重了前轮轴(zhou)承的(de)合成载荷,容(rong)易造成前轮轴(zhou)承的(de)提前损坏(huai)。因(yin)此,对于(yu)采用这种(zhong)结构的(de)车(che)轮,应适时地(di)进(jin)行调整和(he)检修。

  制动器的维护技巧:

  1、常(chang)常(chang)在(zai)制动器的(de)可动有些增加(jia)润滑剂(ji)。

  2、定时查看(kan)衔铁(tie)行(xing)(xing)(xing)程(cheng)(cheng)的长度(du)。因为在制(zhi)动(dong)器的运(yun)转(zhuan)过程(cheng)(cheng)中,因为剖动(dong)面(mian)(mian)的磨(mo)损,衔铁(tie)的行(xing)(xing)(xing)程(cheng)(cheng)长度(du)将(jiang)增(zeng)大(da)。当衔铁(tie)行(xing)(xing)(xing)程(cheng)(cheng)长度(du)达不到正(zheng)常值时,有必(bi)要进行(xing)(xing)(xing)调整,以康复制(zhi)动(dong)面(mian)(mian)与转(zhuan)盘之间的较(jiao)小空(kong)隙(xi)。若是衔铁(tie)行(xing)(xing)(xing)程(cheng)(cheng)长度(du)增(zeng)大(da)到正(zheng)常值以上(shang),就可(ke)能大(da)大(da)下降(jiang)吸力。

  3、若是更换了磨损的制(zhi)(zhi)动面(mian),应从头恰当调整制(zhi)(zhi)动面(mian)与转盘之间的较小空隙。

  4、常(chang)常(chang)查(cha)看螺(luo)栓(shuan)的(de)(de)紧(jin)固程度,特别要拧紧(jin)电磁铁的(de)(de)螺(luo)栓(shuan)、电磁铁与外壳的(de)(de)螺(luo)栓(shuan)、磁轭(e)的(de)(de)螺(luo)栓(shuan)、电磁铁线圈的(de)(de)螺(luo)栓(shuan)和接(jie)线螺(luo)栓(shuan)。

  5、定时查看可动(dong)部件(jian)的机械磨损状(zhuang)况(kuang),并铲(chan)除电磁铁零件(jian)外表的尘(chen)埃、花毛(mao)和尘(chen)垢。

  制动器安装注意事项:

  制(zhi)(zhi)(zhi)动器(qi)(qi)安(an)(an)装过程中必(bi)须注意制(zhi)(zhi)(zhi)动器(qi)(qi)与(yu)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)共用电(dian)(dian)(dian)(dian)(dian)源,要(yao)保证电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)与(yu)制(zhi)(zhi)(zhi)动器(qi)(qi)同时(shi)供电(dian)(dian)(dian)(dian)(dian)和同时(shi)失电(dian)(dian)(dian)(dian)(dian)。鉴(jian)于(yu)(yu)两者同时(shi)供电(dian)(dian)(dian)(dian)(dian)与(yu)失电(dian)(dian)(dian)(dian)(dian)的特性(xing),要(yao)保证两者额定(ding)电(dian)(dian)(dian)(dian)(dian)压(ya)的一(yi)致(zhi)性(xing)。还有,制(zhi)(zhi)(zhi)动器(qi)(qi)只有在额定(ding)电(dian)(dian)(dian)(dian)(dian)压(ya)下可以失电(dian)(dian)(dian)(dian)(dian)并释放制(zhi)(zhi)(zhi)动控(kong)制(zhi)(zhi)(zhi),一(yi)旦(dan)电(dian)(dian)(dian)(dian)(dian)压(ya)较低(di),电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)无(wu)法起(qi)(qi)动,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)会(hui)因(yin)此而被(bei)烧毁;因(yin)而安(an)(an)装制(zhi)(zhi)(zhi)动器(qi)(qi)的电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)必(bi)须保证在满压(ya)状态下起(qi)(qi)动。再(zai)者,制(zhi)(zhi)(zhi)动器(qi)(qi)接(jie)(jie)线应可靠,其接(jie)(jie)端头应与(yu)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)定(ding)子接(jie)(jie)端头一(yi)起(qi)(qi)安(an)(an)装在电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)自身接(jie)(jie)线固定(ding)螺(luo)母的下方,确(que)保客户(hu)接(jie)(jie)线时(shi)不会(hui)影(ying)响其原有的接(jie)(jie)线可靠性(xing)。制(zhi)(zhi)(zhi)动器(qi)(qi)的型(xing)号选择在很大程度上取决于(yu)(yu)所(suo)需(xu)制(zhi)(zhi)(zhi)动力矩的大小。

  以上就是制动器常出现的问题和维护技巧,以及安装注意事项,如需了解更多信息,请继续关注J9九游会AG 吧,http://impnow.com/xinwenzhongxin.html