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無桿氣缸和普通氣缸的的工作原理一樣,只是外部連接、密封形式不同無桿

氣缸兩邊都是空心的,活塞杄內(nèi)的永磁鐵帶動活塞桿外的另一個(gè)磁

體(運(yùn)動部件)它對環(huán)境清潔度要求很高

磁偶式的運(yùn)動是利用空心活塞杄內(nèi)的永磁鐵帶動活塞桿外的另一個(gè)磁鐵運(yùn)

動來實(shí)現(xiàn)的,因其在速度快,負(fù)載高時(shí)內(nèi)外磁環(huán)易脫開,故現(xiàn)在比較少用了。其

負(fù)載質(zhì)量的大小需查找其質(zhì)量與速度的特性曲線。現(xiàn)在機(jī)械式的用的比較多。

無杄氣缸分為磁偶無杄氣缸和機(jī)械接觸式無桿氣缸。無桿氣缸是指利用活塞直

接或方式連接外界執(zhí)行的機(jī)械,并使其跟隨活塞實(shí)現(xiàn)往復(fù)運(yùn)動的氣缸,這種氣

缸的優(yōu)點(diǎn)是節(jié)省安裝空間

活塞通過磁力帶動缸體外部的移動體做同步移動。它的工作原理:在活塞

上安裝一組高強(qiáng)磁性的永久磁環(huán),磁力線通過薄壁缸筒與套在外面的另一組磁

環(huán)作用,由于兩組磁環(huán)磁性相反,具有很強(qiáng)的吸力。當(dāng)活塞在缸筒內(nèi)被氣壓推動


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