液(ye)(ye)(ye)壓(ya)傳(chuan)動是(shi)以液(ye)(ye)(ye)體(ti)為工(gong)作介(jie)質，利(li)用(yong)液(ye)(ye)(ye)體(ti)的(de)壓(ya)力能(neng)(neng)(neng)來實現運動和力的(de)一(yi)種傳(chuan)動方式。一(yi)般而言，能(neng)(neng)(neng)夠實現某種特定功(gong)能(neng)(neng)(neng)的(de)液(ye)(ye)(ye)壓(ya)元(yuan)(yuan)件(jian)(jian)的(de)組合，稱(cheng)為液(ye)(ye)(ye)壓(ya)回(hui)(hui)路(lu)，而若干特定的(de)基(ji)本功(gong)能(neng)(neng)(neng)回(hui)(hui)路(lu)連接(jie)或復合而成(cheng)的(de)總體(ti)則稱(cheng)為直流液(ye)(ye)(ye)壓(ya)動力單元(yuan)(yuan)。直流液(ye)(ye)(ye)壓(ya)動力單元(yuan)(yuan)通常都(dou)是(shi)由液(ye)(ye)(ye)壓(ya)元(yuan)(yuan)件(jian)(jian)（動力元(yuan)(yuan)件(jian)(jian)、執行元(yuan)(yuan)件(jian)(jian)、控制元(yuan)(yuan)件(jian)(jian)、輔助元(yuan)(yuan)件(jian)(jian)）和工(gong)作介(jie)質兩大(da)部分組成(cheng)。

直流液壓動(dong)力單元型(xing)號規格：