1、液壓傳動的優(yōu)點(diǎn) （1）體積小、重量輕，例如同功率液壓馬達(dá)的重量只有電動機(jī)的10％～20%。因此慣性力較小，當(dāng)突然過載或停車時，不會發(fā)生大的沖擊；
（2）能在給定范圍內(nèi)平穩(wěn)的自動調(diào)節(jié)牽引速度，并可實(shí)現(xiàn)無極調(diào)速，且調(diào)速范圍Z大可達(dá)1：2000(一般為1：100）。
（3）換向容易，在不改變電機(jī)旋轉(zhuǎn)方向的情況下，可以較方便地實(shí)現(xiàn)工作機(jī)構(gòu)旋轉(zhuǎn)和直線往復(fù)運(yùn)動的轉(zhuǎn)換；
（4）液壓泵和液壓馬達(dá)之間用油管連接

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力士樂比例伺服閥
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