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PARKER柱(zhu)塞泵根(gen)據傾斜(xie)(xie)(xie)元件的(de)不同(tong),有(you)斜(xie)(xie)(xie)盤(pan)(pan)式和斜(xie)(xie)(xie)軸(zhou)(zhou)式兩種(zhong)。斜(xie)(xie)(xie)盤(pan)(pan)式是(shi)(shi)(shi)(shi)斜(xie)(xie)(xie)盤(pan)(pan)相對(dui)回轉(zhuan)的(de)缸(gang)體有(you)一傾斜(xie)(xie)(xie)角度(du),而(er)引起(qi)柱(zhu)塞在泵缸(gang)中往(wang)復(fu)運動(dong)(dong)。傳動(dong)(dong)軸(zhou)(zhou)軸(zhou)(zhou)線和缸(gang)體軸(zhou)(zhou)線是(shi)(shi)(shi)(shi)一致(zhi)的(de)。這種(zhong)結構較簡單,轉(zhuan)速較高,但工作條件要(yao)求(qiu)高,PARKER柱(zhu)塞端(duan)部(bu)與斜(xie)(xie)(xie)盤(pan)(pan)的(de)接(jie)觸(chu)部(bu)往(wang)往(wang)是(shi)(shi)(shi)(shi)薄弱環節。斜(xie)(xie)(xie)軸(zhou)(zhou)式的(de)斜(xie)(xie)(xie)盤(pan)(pan)軸(zhou)(zhou)線與傳動(dong)(dong)軸(zhou)(zhou)軸(zhou)(zhou)線是(shi)(shi)(shi)(shi)一致(zhi)的(de)。它(ta)是(shi)(shi)(shi)(shi)由(you)于柱(zhu)塞缸(gang)體相對(dui)傳動(dong)(dong)軸(zhou)(zhou)傾斜(xie)(xie)(xie)一角度(du)而(er)使柱(zhu)塞作往(wang)復(fu)運動(dong)(dong)。流量(liang)調節依(yi)靠擺動(dong)(dong)柱(zhu)塞缸(gang)體的(de)角度(du)來實(shi)現,故(gu)有(you)的(de)又稱擺缸(gang)式。它(ta)與斜(xie)(xie)(xie)盤(pan)(pan)式相比,工作可靠,流量(liang)大(da),但結構復(fu)雜(za)。
PARKER派(pai)(pai)克(ke)柱(zhu)塞泵-蓄(xu)能(neng)器(qi)(qi)驅(qu)動在這種(zhong)(zhong)驅(qu)動系(xi)統中有(you)一(yi)個或一(yi)組蓄(xu)能(neng)器(qi)(qi)。當PARKER派(pai)(pai)克(ke)柱(zhu)塞泵所供給的高壓(ya)(ya)工(gong)作液(ye)(ye)有(you)余量(liang)(liang)時(shi),由蓄(xu)能(neng)器(qi)(qi)儲存;而當供給量(liang)(liang)不足于需要時(shi),便由蓄(xu)能(neng)器(qi)(qi)補(bu)充(chong)供給。采用(yong)這種(zhong)(zhong)系(xi)統可以按高壓(ya)(ya)工(gong)作液(ye)(ye)的平(ping)均用(yong)量(liang)(liang)選用(yong)PARKER派(pai)(pai)克(ke)柱(zhu)塞泵和電動機的容量(liang)(liang),但因為工(gong)作液(ye)(ye)的壓(ya)(ya)強是(shi)恒定的,電能(neng)消耗量(liang)(liang)較大,并且系(xi)統的環節多,結構(gou)比較復雜。這種(zhong)(zhong)驅(qu)動系(xi)統多用(yong)于大型液(ye)(ye)壓(ya)(ya)機,或者用(yong)一(yi)套驅(qu)動系(xi)統驅(qu)動數臺液(ye)(ye)壓(ya)(ya)機。
在(zai)閉式回(hui)路靜液(ye)傳動中,主泵(beng)(beng)通(tong)常包(bao)含一個補油泵(beng)(beng),該補油泵(beng)(beng)為泵(beng)(beng)和馬達容積損失提供補充(chong)油液(ye)。該泵(beng)(beng)同時也能保持主泵(beng)(beng)有足夠(gou)的進口壓力,避(bi)免(mian)吸空。在(zai)許(xu)多應(ying)用中,當以下(xia)條件滿(man)足時,BLA 增壓裝置(zhi)能夠(gou)替代補油泵(beng)(beng):
- 泵(beng) 大流(liu)量與(yu) 小流(liu)量之(zhi)比不超過 2:1
- 系統壓力變化(hua)過穩,沒有頻繁(fan)和(he)明顯(xian)的壓力峰值
- 泵(beng)和增壓裝置之間的管路長度(du)相當短有兩種
基本規格的(de) BLA 增壓裝(zhuang)置:
- BLA 4 (到 160 l/min 泵流量)
- BLA 6 (到 400 l/min)
PV063R1K1T1NMMC
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PV140R1K1T1NMMC
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PV063R1K1T1NMMK
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PV046R1K1T1NMMC
PV270R1K1T1WMMC
PV040R1K1T1NMMC
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PVP2336BR2MP21