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  新聞:吉縣50兩相步進(jìn)馬達(dá)28HS2A28-064產(chǎn)地
　　2.1 機(jī)械故障。
　　機(jī)械性故障包括電樞動(dòng)平衡破壞、傳動(dòng)機(jī)械不良、安裝不良松動(dòng)、軸承不良、未灌潤(rùn)滑脂或潤(rùn)滑脂太少或太多等問(wèn)題,主要通過(guò)重新校正平衡以及更換相應(yīng)設(shè)備等措施進(jìn)行故障排查。機(jī)械故障是難以避免的,正確解決機(jī)械故障可以有效保證電機(jī)的正常運(yùn)行。
　　2.2 電氣故障
　　直流電機(jī)運(yùn)行的電氣故障主要表現(xiàn)在以下幾個(gè)方面:(1)運(yùn)行過(guò)程中溫度升高(2)電刷下火花強(qiáng)烈引起換向片燒黑(3)電機(jī)絕緣性能下降,絕緣老化速度加快等。
　　運(yùn)行中的溫度升高主要由電機(jī)過(guò)載、冷卻系統(tǒng)工作不正常、電樞線圈短路等原因所致。處理過(guò)程中要找準(zhǔn)引起溫度上升的原因,并對(duì)相應(yīng)部位進(jìn)行檢修維護(hù)。
　　電刷下火花強(qiáng)烈引起換向片燒黑的部分原因分析及處理措施如下表:
　　3結(jié)語(yǔ)
　　直流電機(jī)的維護(hù)保養(yǎng)決定其正常運(yùn)行;直流電機(jī)結(jié)構(gòu)的特殊性決定其故障的多樣性和故障診斷的復(fù)雜性。電機(jī)的維護(hù)保養(yǎng)與故障診斷息息相關(guān),合理的維護(hù)不但可以盡量避免故障的發(fā)生,延長(zhǎng)電機(jī)的使用壽命,而且可轉(zhuǎn)化為經(jīng)濟(jì)效益。只有正確維護(hù),準(zhǔn)確診斷,電機(jī)才能實(shí)現(xiàn)穩(wěn)定地運(yùn)行。

CH2200-3-S-B-G1-LT-H3 CH2200-5-S-B-G1-LT-H3 CH2200-10-S-B-G1-LT-H3 CH2200-15-S-B-G1-LT-H3 CH2200-20-S-B-G1-LT-H3 CH2200-25-S-B-G1-LT-H3 CH2200-30-S-B-G1-LT-H3 CH2200-40-S-B-G1-LT-H3 CH2200-45-S-B-G1-LT-H3 CH2200-50-S-B-G1-LT-H3 CH2200-60-S-B-G1-LT-H3 CH2200-70-S-B-G1-LT-H3 CH2200-80-S-B-G1-LT-H3 CH2200-90-S-B-G1-LT-H3 CH2200-100-S-B-G1-LT-H3 CH2200-120-S-B-G1-LT-H3 CH2200-140-S-B-G1-LT-H3 CH2200-160-S-B-G1-LT-H3 CH2200-180-S-B-G1-LT-H3 CH2200-200-S-B-G1-LT-H3 CH3700-3-S-B-G1-LT-H3 CH3700-5-S-B-G1-LT-H3 CH3700-10-S-B-G1-LT-H3 CH3700-15-S-B-G1-LT-H3 CH3700-20-S-B-G1-LT-H3 CH3700-25-S-B-G1-LT-H3 CH3700-30-S-B-G1-LT-H3 CH3700-40-S-B-G1-LT-H3 CH3700-45-S-B-G1-LT-H3 CH3700-50-S-B-G1-LT-H3 CH3700-60-S-B-G1-LT-H3 CH3700-70-S-B-G1-LT-H3 CH3700-80-S-B-G1-LT-H3 CH3700-90-S-B-G1-LT-H3 CH3700-100-S-B-G1-LT-H3 CH3700-120-S-B-G1-LT-H3 CH3700-140-S-B-G1-LT-H3 CH3700-160-S-B-G1-LT-H3 CH3700-180-S-B-G1-LT-H3 CH3700-200-S-B-G1-LT-H3 CH100-3-S-G1-LT-H9 CH100-5-S-G1-LT-H9 CH100-10-S-G1-LT-H9 CH100-15-S-G1-LT-H9 CH100-20-S-G1-LT-H9 CH100-25-S-G1-LT-H9 CH100-30-S-G1-LT-H9 CH100-40-S-G1-LT-H9 CH100-45-S-G1-LT-H9 CH100-50-S-G1-LT-H9 CH100-60-S-G1-LT-H9 CH100-70-S-G1-LT-H9 CH100-80-S-G1-LT-H9 CH100-90-S-G1-LT-H9 CH100-100-S-G1-LT-H9 CH100-120-S-G1-LT-H9 CH100-140-S-G1-LT-H9 CH100-160-S-G1-LT-H9 CH100-180-S-G1-LT-H9 CH100-200-S-G1-LT-H9 CH200-3-S-G1-LT-H9 CH200-5-S-G1-LT-H9 CH200-10-S-G1-LT-H9 CH200-15-S-G1-LT-H9 CH200-20-S-G1-LT-H9 CH200-25-S-G1-LT-H9 CH200-30-S-G1-LT-H9 CH200-40-S-G1-LT-H9 CH200-45-S-G1-LT-H9 CH200-50-S-G1-LT-H9 CH200-60-S-G1-LT-H9 CH200-70-S-G1-LT-H9 CH200-80-S-G1-LT-H9 CH200-90-S-G1-LT-H9 CH200-100-S-G1-LT-H9 CH200-120-S-G1-LT-H9 CH200-140-S-G1-LT-H9 CH200-160-S-G1-LT-H9 CH200-180-S-G1-LT-H9 CH200-200-S-G1-LT-H9
新聞:吉縣50兩相步進(jìn)馬達(dá)28HS2A28-064產(chǎn)地
一直以來(lái)，冷軋薄板是目前主要短缺鋼材品種，數(shù)量和質(zhì)量都不能滿足要求。大部分板材深加工生產(chǎn)原料供給不足，對(duì)于產(chǎn)品質(zhì)量要求嚴(yán)格的普冷板及鍍鋅板，目前主要依賴進(jìn)口，表面質(zhì)量、強(qiáng)度級(jí)強(qiáng)要求嚴(yán)格的轎車面板進(jìn)口的比例則更高，供需矛盾非常大。而廣東省是冷軋薄板主要消費(fèi)區(qū)域之一，且板材生產(chǎn)能力遠(yuǎn)不能滿足市場(chǎng)需求，缺口尤其嚴(yán)重。數(shù)據(jù)顯示，預(yù)計(jì)212年珠三角地區(qū)將消耗板材超1萬(wàn)噸；廣州汽車工業(yè)將消耗高質(zhì)量要求的普冷板及鍍鋅板超過(guò)1萬(wàn)噸、消耗轎車面板2萬(wàn)噸，缺口很大。
新聞:吉縣50兩相步進(jìn)馬達(dá)28HS2A28-064產(chǎn)地

二、無(wú)刷直流電機(jī)的性
電動(dòng)車輛主要用于城市交通，車輛大部分時(shí)間處于啟動(dòng)、加速、制動(dòng)的工作狀態(tài)，因此電機(jī)的起動(dòng)性能、加速性能、低速時(shí)的效率、制動(dòng)時(shí)的能量再生能力、電機(jī)的過(guò)載能力、電機(jī)的能量密度、電機(jī)可靠性對(duì)電動(dòng)車輛尤為重要，是衡量電動(dòng)車輛電機(jī)的重要指標(biāo)。目前電動(dòng)車輛還沒(méi)有專用電機(jī)可選，只能選用通用電機(jī)，如直流串激電機(jī)、直流并激電機(jī)、永磁直流電機(jī)、異步電機(jī)等。通用電機(jī)的負(fù)載特性為恒負(fù)載特性，而電動(dòng)車輛特性為變負(fù)載特性，兩者特性不匹配，影響了電機(jī)出力，進(jìn)而影響了電動(dòng)車輛性能。另外，通用電機(jī)的效率點(diǎn)均設(shè)計(jì)在額定點(diǎn)附近，當(dāng)負(fù)載偏離額定點(diǎn)時(shí)，電機(jī)效率急劇下降，影響了車輛的續(xù)駛里程。開(kāi)關(guān)磁阻電機(jī)在低速時(shí)具有較大的轉(zhuǎn)矩，但效率偏低，永磁同步電機(jī)具有較高的效率，但低速時(shí)轉(zhuǎn)矩?zé)o法提升。只有無(wú)刷直流電機(jī)具備了以上電機(jī)的所有優(yōu)點(diǎn)，它具有串激直流電機(jī)的低速轉(zhuǎn)矩提升功能、并激直流電機(jī)的調(diào)速性能、永磁同步電機(jī)的特性和接近異步電機(jī)的可靠性，非常適合電動(dòng)車輛的需要。

新聞:吉縣50兩相步進(jìn)馬達(dá)28HS2A28-064產(chǎn)地
CH1500-3-S-B-G2-RD-H6 CH1500-5-S-B-G2-RD-H6 CH1500-10-S-B-G2-RD-H6 CH1500-15-S-B-G2-RD-H6 CH1500-20-S-B-G2-RD-H6 CH1500-25-S-B-G2-RD-H6 CH1500-30-S-B-G2-RD-H6 CH1500-40-S-B-G2-RD-H6 CH1500-45-S-B-G2-RD-H6 CH1500-50-S-B-G2-RD-H6 CH1500-60-S-B-G2-RD-H6 CH1500-70-S-B-G2-RD-H6 CH1500-80-S-B-G2-RD-H6 CH1500-90-S-B-G2-RD-H6 CH1500-100-S-B-G2-RD-H6 CH1500-120-S-B-G2-RD-H6 CH1500-140-S-B-G2-RD-H6 CH1500-160-S-B-G2-RD-H6 CH1500-180-S-B-G2-RD-H6 CH1500-200-S-B-G2-RD-H6 CH2200-3-S-B-G2-RD-H6 CH2200-5-S-B-G2-RD-H6 CH2200-10-S-B-G2-RD-H6 CH2200-15-S-B-G2-RD-H6 CH2200-20-S-B-G2-RD-H6 CH2200-25-S-B-G2-RD-H6 CH2200-30-S-B-G2-RD-H6 CH2200-40-S-B-G2-RD-H6 CH2200-45-S-B-G2-RD-H6 CH2200-50-S-B-G2-RD-H6 CH2200-60-S-B-G2-RD-H6 CH2200-70-S-B-G2-RD-H6 CH2200-80-S-B-G2-RD-H6 CH2200-90-S-B-G2-RD-H6 CH2200-100-S-B-G2-RD-H6 CH2200-120-S-B-G2-RD-H6 CH2200-140-S-B-G2-RD-H6 CH2200-160-S-B-G2-RD-H6 CH2200-180-S-B-G2-RD-H6 CH2200-200-S-B-G2-RD-H6 CH3700-3-S-B-G2-RD-H6 CH3700-5-S-B-G2-RD-H6 CH3700-10-S-B-G2-RD-H6 CH3700-15-S-B-G2-RD-H6 CH3700-20-S-B-G2-RD-H6 CH3700-25-S-B-G2-RD-H6 CH3700-30-S-B-G2-RD-H6 CH3700-40-S-B-G2-RD-H6 CH3700-45-S-B-G2-RD-H6 CH3700-50-S-B-G2-RD-H6 CH3700-60-S-B-G2-RD-H6 CH3700-70-S-B-G2-RD-H6 CH3700-80-S-B-G2-RD-H6 CH3700-90-S-B-G2-RD-H6 CH3700-100-S-B-G2-RD-H6 CH3700-120-S-B-G2-RD-H6 CH3700-140-S-B-G2-RD-H6 CH3700-160-S-B-G2-RD-H6 CH3700-180-S-B-G2-RD-H6 CH3700-200-S-B-G2-RD-H6 CH100-3-S-G2-RD-H9 CH100-5-S-G2-RD-H9 CH100-10-S-G2-RD-H9 CH100-15-S-G2-RD-H9 CH100-20-S-G2-RD-H9 CH100-25-S-G2-RD-H9 CH100-30-S-G2-RD-H9 CH100-40-S-G2-RD-H9 CH100-45-S-G2-RD-H9 CH100-50-S-G2-RD-H9 CH100-60-S-G2-RD-H9 CH100-70-S-G2-RD-H9 CH100-80-S-G2-RD-H9 CH100-90-S-G2-RD-H9 CH100-100-S-G2-RD-H9 CH100-120-S-G2-RD-H9 CH100-140-S-G2-RD-H9 CH100-160-S-G2-RD-H9 CH100-180-S-G2-RD-H9 CH100-200-S-G2-RD-H9