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力士樂(lè)現(xiàn)貨溢流閥DBETX-1X 180G24-25NZ4M
力士樂(lè)現(xiàn)貨溢流閥DBETX-1X 180G24-25NZ4M
力士樂(lè)現(xiàn)貨溢流閥DBETX-1X 180G24-25NZ4M
比例閥采用閥芯+閥體結(jié)構(gòu)。伺服閥和伺服比例閥主要應(yīng)用在閉環(huán)控制系統(tǒng)，比例閥的驅(qū)動(dòng)裝置是比例電磁鐵。
伺服閥的驅(qū)動(dòng)裝置是力馬達(dá)或力矩馬達(dá).閥體兼作閥套。
驅(qū)動(dòng)裝置不同.所以近些年出現(xiàn)了比例伺服閥。
比例閥一般zui高幾十Hz，伺服閥中位沒(méi)有死區(qū)，伺服閥對(duì)液壓油液的要求更高.性能參數(shù)不同；否則容易堵塞，
用來(lái)控制流量和流向，比例閥要求低一些.比例閥有中位死區(qū)；
比例閥和伺服閥的區(qū)別主要體現(xiàn)在以下幾點(diǎn)：
逐漸向伺服閥靠近，
比例換向閥屬于比例閥的一種，滯環(huán)、中位死區(qū)、頻寬、過(guò)濾精度等特性不同.閥的額定壓降不同；比例換向閥具有與普通換向閥相似的中位機(jī)能，
而比例伺服閥性能介于伺服閥和比例閥之間，因此應(yīng)用場(chǎng)合不同，伺服閥和伺服比例閥采用閥芯+閥套的結(jié)構(gòu)。中位機(jī)能種類不同.其它結(jié)構(gòu)的比例閥主要應(yīng)用在開環(huán)控系統(tǒng)及閉環(huán)速度控制系統(tǒng)；因?yàn)楸壤y的性能越來(lái)越好；2伺服閥的頻響（響應(yīng)頻率）更高。閥芯結(jié)構(gòu)及加工精度不同.伺服閥與比例閥之間的差別并沒(méi)有嚴(yán)格的規(guī)定。
，可以高達(dá)200Hz左右，需要精過(guò)濾才行，而伺服閥中位機(jī)能只有O型（Rexroth產(chǎn)品的E型）。
活塞- Ø16 mm20 mm25 mm32 mm40 mm50 mm63 mm80 mm100 mm活塞桿螺紋M4M6M6M8M8M10M10M12M12接口M5M5M5G 1/8G 1/8G 1/8G 1/8G 1/8G 1/8活塞桿-Ø8 mm10 mm10 mm12 mm12 mm16 mm16 mm20 mm25 mm
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活塞- Ø16 mm20 mm25 mm32 mm40 mm50 mm63 mm80 mm100 mm縮回運(yùn)動(dòng)的活塞力12 N13 N25 N35 N43 N82 N82 N105 N215 N伸出運(yùn)動(dòng)的活塞力94 N151 N234 N387 N622 N953 N1565 N2551 N3930 N沖撞能量0,11 J0,15 J0,2 J0,4 J0,52 J0,64 J0,75 J0,75 J1 J重量0 mm行程0,061 kg0,101 kg0,126 kg0,237 kg0,309 kg0,462 kg0,703 kg1,142 kg2,199 kg重量10mm行程0,016 kg0,023 kg0,026 kg0,043 kg0,052 kg0,07 kg0,087 kg0,116 kg0,168 kgzuida行程25 mm25 mm25 mm25 mm25 mm25 mm25 mm25 mm25 mm
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