新聞:介休市電腦繡花機(jī)專用步進(jìn)電機(jī)28BYGH32-0674B型錄
關(guān)于交流伺服電機(jī)的幾個(gè)問(wèn)題
A):交流同步伺服、交流異步伺服的額定轉(zhuǎn)速與極數(shù)是否有關(guān)?n1=60f/2p?額定轉(zhuǎn)速以下輸出恒轉(zhuǎn)矩,額定轉(zhuǎn)速以上恒功率,那么額定轉(zhuǎn)速的界定是由電機(jī)本身的機(jī)械決定還是驅(qū)動(dòng)器來(lái)決定?
有關(guān),同步轉(zhuǎn)速n1=60f/2p,異步機(jī)還有滑差s,n=(1-s)n1,同步機(jī)n=n1,2p為極對(duì)數(shù)。控制中弱磁速度的界定是由驅(qū)動(dòng)器判斷的。
額定轉(zhuǎn)速可以由幾個(gè)方面決定:同步伺服的反電勢(shì)高低、電機(jī)鐵心材料允許的驅(qū)動(dòng)電流交變頻率、額定轉(zhuǎn)矩下電機(jī)的功率、溫升等,主要還是反電勢(shì);異步電機(jī)主要受材料允許的頻率以及極對(duì)數(shù)限制。
新聞:介休市電腦繡花機(jī)專用步進(jìn)電機(jī)28BYGH32-0674B型錄
CV3700-3-S-B-G1-LD-V6
CV3700-5-S-B-G1-LD-V6
CV3700-10-S-B-G1-LD-V6
CV3700-15-S-B-G1-LD-V6
CV3700-20-S-B-G1-LD-V6
CV3700-25-S-B-G1-LD-V6
CV3700-30-S-B-G1-LD-V6
CV3700-40-S-B-G1-LD-V6
CV3700-45-S-B-G1-LD-V6
CV3700-50-S-B-G1-LD-V6
CV3700-60-S-B-G1-LD-V6
CV3700-70-S-B-G1-LD-V6
CV3700-80-S-B-G1-LD-V6
CV3700-90-S-B-G1-LD-V6
CV3700-100-S-B-G1-LD-V6
CV3700-120-S-B-G1-LD-V6
CV3700-140-S-B-G1-LD-V6
CV3700-160-S-B-G1-LD-V6
CV3700-180-S-B-G1-LD-V6
CV3700-200-S-B-G1-LD-V6
CV100-3-S-G1-LD-V9
CV100-5-S-G1-LD-V9
CV100-10-S-G1-LD-V9
CV100-15-S-G1-LD-V9
CV100-20-S-G1-LD-V9
CV100-25-S-G1-LD-V9
CV100-30-S-G1-LD-V9
CV100-40-S-G1-LD-V9
CV100-45-S-G1-LD-V9
CV100-50-S-G1-LD-V9
CV100-60-S-G1-LD-V9
CV100-70-S-G1-LD-V9
CV100-80-S-G1-LD-V9
CV100-90-S-G1-LD-V9
CV100-100-S-G1-LD-V9
CV100-120-S-G1-LD-V9
CV100-140-S-G1-LD-V9
CV100-160-S-G1-LD-V9
CV100-180-S-G1-LD-V9
CV100-200-S-G1-LD-V9
CV200-3-S-G1-LD-V9
CV200-5-S-G1-LD-V9
CV200-10-S-G1-LD-V9
CV200-15-S-G1-LD-V9
CV200-20-S-G1-LD-V9
CV200-25-S-G1-LD-V9
CV200-30-S-G1-LD-V9
CV200-40-S-G1-LD-V9
CV200-45-S-G1-LD-V9
CV200-50-S-G1-LD-V9
CV200-60-S-G1-LD-V9
CV200-70-S-G1-LD-V9
CV200-80-S-G1-LD-V9
CV200-90-S-G1-LD-V9
CV200-100-S-G1-LD-V9
CV200-120-S-G1-LD-V9
CV200-140-S-G1-LD-V9
CV200-160-S-G1-LD-V9
CV200-180-S-G1-LD-V9
CV200-200-S-G1-LD-V9
CV400-3-S-G1-LD-V9
CV400-5-S-G1-LD-V9
CV400-10-S-G1-LD-V9
CV400-15-S-G1-LD-V9
CV400-20-S-G1-LD-V9
CV400-25-S-G1-LD-V9
CV400-30-S-G1-LD-V9
CV400-40-S-G1-LD-V9
CV400-45-S-G1-LD-V9
CV400-50-S-G1-LD-V9
CV400-60-S-G1-LD-V9
CV400-70-S-G1-LD-V9
CV400-80-S-G1-LD-V9
CV400-90-S-G1-LD-V9
CV400-100-S-G1-LD-V9
CV400-120-S-G1-LD-V9
CV400-140-S-G1-LD-V9
CV400-160-S-G1-LD-V9
CV400-180-S-G1-LD-V9
CV400-200-S-G1-LD-V9
不銹鋼指耐空氣、蒸汽、水等弱腐蝕介質(zhì)和酸、堿、鹽等化學(xué)浸蝕性介質(zhì)腐蝕的鋼,它是由鐵鉻合金再摻入其他一些微量元素而制成的。由于其金屬性能良好,并且比其他金屬耐銹蝕,制成的器皿美觀耐用。不銹鋼真的不生銹嗎?真正的不銹鋼產(chǎn)品應(yīng)該可以使用上百年而不會(huì)生銹。但我們?cè)谑忻嫔弦姷降牟讳P鋼還是可以生銹被腐蝕的,只是在一般情況下,腐蝕的速率很慢。曾做過(guò)這樣的試驗(yàn):把兩塊重量都是2克的不銹鋼和普通碳素鋼,一起放在稀硝酸中煮沸一晝夜,結(jié)果普通鋼被強(qiáng)烈腐蝕,只剩13.6克重,而不銹鋼卻重19.8克。
新聞:介休市電腦繡花機(jī)專用步進(jìn)電機(jī)28BYGH32-0674B型錄
3.現(xiàn)代交流伺服系統(tǒng),在經(jīng)歷了從模擬到數(shù)字化的轉(zhuǎn)變后,其內(nèi)部數(shù)字控制環(huán)已經(jīng)無(wú)處不在,比如換相、電流、速度和位置控制等;其實(shí)現(xiàn)主要通過(guò)功率半導(dǎo)體器件,像高性能DSP加FPGA、甚至伺服專用模塊也不足為奇。且新的功率器件或模塊每2~2.5年就會(huì)更新一次,新的軟件算法也日新月異,廠商的伺服產(chǎn)品大概每5年亦會(huì)更新?lián)Q代——總而言之,產(chǎn)品生命周期越來(lái)越短,變化越來(lái)越快??偨Y(jié)伺服廠家的技術(shù)路線和產(chǎn)品路線,結(jié)合市場(chǎng)需求的變化,可以看到以下一些伺服電機(jī)系統(tǒng)的發(fā)展趨勢(shì):
率化
盡管化一直都是伺服系統(tǒng)重要的發(fā)展課題,但是仍需要繼續(xù)加強(qiáng)。主要包括電機(jī)本身的率:比如永磁材料性能的改進(jìn)和更好的磁鐵安裝結(jié)構(gòu)設(shè)計(jì);也包括驅(qū)動(dòng)系統(tǒng)的率化:包括逆變器驅(qū)動(dòng)電路的優(yōu)化,加減速運(yùn)動(dòng)的優(yōu)化,再生制動(dòng)和能量反饋以及更好的冷卻方式等。
新聞:介休市電腦繡花機(jī)專用步進(jìn)電機(jī)28BYGH32-0674B型錄
CV1500-3-S-G1-LT-V9
CV1500-5-S-G1-LT-V9
CV1500-10-S-G1-LT-V9
CV1500-15-S-G1-LT-V9
CV1500-20-S-G1-LT-V9
CV1500-25-S-G1-LT-V9
CV1500-30-S-G1-LT-V9
CV1500-40-S-G1-LT-V9
CV1500-45-S-G1-LT-V9
CV1500-50-S-G1-LT-V9
CV1500-60-S-G1-LT-V9
CV1500-70-S-G1-LT-V9
CV1500-80-S-G1-LT-V9
CV1500-90-S-G1-LT-V9
CV1500-100-S-G1-LT-V9
CV1500-120-S-G1-LT-V9
CV1500-140-S-G1-LT-V9
CV1500-160-S-G1-LT-V9
CV1500-180-S-G1-LT-V9
CV1500-200-S-G1-LT-V9
CV2200-3-S-G1-LT-V9
CV2200-5-S-G1-LT-V9
CV2200-10-S-G1-LT-V9
CV2200-15-S-G1-LT-V9
CV2200-20-S-G1-LT-V9
CV2200-25-S-G1-LT-V9
CV2200-30-S-G1-LT-V9
CV2200-40-S-G1-LT-V9
CV2200-45-S-G1-LT-V9
CV2200-50-S-G1-LT-V9
CV2200-60-S-G1-LT-V9
CV2200-70-S-G1-LT-V9
CV2200-80-S-G1-LT-V9
CV2200-90-S-G1-LT-V9
CV2200-100-S-G1-LT-V9
CV2200-120-S-G1-LT-V9
CV2200-140-S-G1-LT-V9
CV2200-160-S-G1-LT-V9
CV2200-180-S-G1-LT-V9
CV2200-200-S-G1-LT-V9
CV3700-3-S-G1-LT-V9
CV3700-5-S-G1-LT-V9
CV3700-10-S-G1-LT-V9
CV3700-15-S-G1-LT-V9
CV3700-20-S-G1-LT-V9
CV3700-25-S-G1-LT-V9
CV3700-30-S-G1-LT-V9
CV3700-40-S-G1-LT-V9
CV3700-45-S-G1-LT-V9
CV3700-50-S-G1-LT-V9
CV3700-60-S-G1-LT-V9
CV3700-70-S-G1-LT-V9
CV3700-80-S-G1-LT-V9
CV3700-90-S-G1-LT-V9
CV3700-100-S-G1-LT-V9
CV3700-120-S-G1-LT-V9
CV3700-140-S-G1-LT-V9
CV3700-160-S-G1-LT-V9
CV3700-180-S-G1-LT-V9
CV3700-200-S-G1-LT-V9
CV100-3-S-B-G1-LT-V9
CV100-5-S-B-G1-LT-V9
CV100-10-S-B-G1-LT-V9
CV100-15-S-B-G1-LT-V9
CV100-20-S-B-G1-LT-V9
CV100-25-S-B-G1-LT-V9
CV100-30-S-B-G1-LT-V9
CV100-40-S-B-G1-LT-V9
CV100-45-S-B-G1-LT-V9
CV100-50-S-B-G1-LT-V9
CV100-60-S-B-G1-LT-V9
CV100-70-S-B-G1-LT-V9
CV100-80-S-B-G1-LT-V9
CV100-90-S-B-G1-LT-V9
CV100-100-S-B-G1-LT-V9
CV100-120-S-B-G1-LT-V9
CV100-140-S-B-G1-LT-V9
CV100-160-S-B-G1-LT-V9
CV100-180-S-B-G1-LT-V9
CV100-200-S-B-G1-LT-V9