A4VSO泵具有泵具有噪音低、體積小、自吸能力好、可靠性高等優(yōu)點(diǎn)。在閉式系統(tǒng)上應(yīng)用,油泵變量過零位時(shí)一般柱塞泵都有托盤現(xiàn)象,唯獨(dú)D-A4VSO泵有效解決此類問題,因補(bǔ)油泵、控制泵可以串接、控制閥可以集成在泵蓋上,其結(jié)構(gòu)非常緊湊;另外,比例泵均帶有位移傳感器閉式反饋回路,其零位控制精度非常高 廣泛應(yīng)用于:冶金行業(yè)、鍛壓行業(yè)、船舶行業(yè)、船舶等等領(lǐng)域。A4VSO系列規(guī)格有40、71、125、180、250:;變量形式有恒壓,恒功率、液動(dòng)、負(fù)載感應(yīng)、比例、伺服、壓力流量復(fù)合控制形式;有開式系統(tǒng)泵和閉式系統(tǒng)泵。
一、產(chǎn)品特點(diǎn) a、斜盤軸向柱塞泵變量泵b、液壓泵的流量正比于泵的轉(zhuǎn)速和排量c、可通過調(diào)節(jié)斜盤角度來實(shí)現(xiàn)無級(jí)變量d、額定的工作壓力可達(dá)到35MPa e、優(yōu)異的吸入特征,選用長(zhǎng)壽命,高精度軸承f、具備結(jié)構(gòu)設(shè)計(jì)緊湊,重量輕,低噪聲特點(diǎn)g、靜壓平衡滑靴提高使用壽命h、控制響應(yīng)靈敏,帶斜盤角度指示器
二、規(guī)格計(jì)算
輸出流量:Q=Vg.n.ηv/1000 L/min
扭矩: M=1.59Vg.△P/10ηmh N.m
功率: P=M.n/9549=Q. △P/60ηt kW
注:Vg=排量 mL/r △P=壓差MPa n=轉(zhuǎn)速rpm
ηv=容積效率 ηmh=機(jī)械效率 ηt=點(diǎn)效率
三、技術(shù)數(shù)據(jù)
性能參數(shù)[以下數(shù)據(jù)未考慮機(jī)械效率及容積效率]
規(guī)格 |
40 |
71 |
125 |
180 |
250 |
355 |
500 |
流量L/min |
4 |
5 |
6 |
8 |
12 |
16 |
20 |
e.當(dāng)液壓泵連續(xù)在額定壓力或間斷峰值壓力下運(yùn)行,采用輔助裝置冷卻油液,保證油液溫度不超過規(guī)定范圍。
廣西貴港RCA45T001淹沒式電磁脈沖閥
A10-FR01B-12,A10-FR01C-12,A10-FR01H-12,
A70-FR01BS-60,A70-FR01CS-60,A70-FR01HS-60,A70-FR01KS-60,
A90-FR01BS-60,A90-FR01CS-60,A90-FR01HS-60,A90-FR01KS-60,
A145-FR01BS-60,A145-FR01CS-60,A145-FR01HS-60,A145-FR01KS-60,
A16-F-R-01-B-K-32,A16-F-R-01-C-K-32,A16-F-R-01-H-K-32,
A22-F-R-01-B-K-32,A22-F-R-01-C-K-32,
A37-F-R-01-B-K-32,A37-F-R-01-C-K-32,A37-F-R-01-H-K-32,
A56-F-R-01-B-K-32,A56-F-R-01-C-K-32,A56-F-R-01-H-K-32,
A220-F-R-01-B-S-60,A220-F-R-01-C-S-60,A220-F-R-01-H-S-60,A220-F-R-01-K-S-60.
A125-F-R-01-B-S-60,A125-F-R-01-C-S-60,A125-F-R-01-H-S-60,A125-F-R-01-K-S-60.
A16-F-R-01-B-S-K-32,A16-F-R-01-C-S-K-32,A16-F-R-01-H-S-K-32,
A22-F-R-01-B-S-K-32,A22-F-R-01-C-S-K-32,
A37-F-R-01-B-S-K-32,A37-F-R-01-C-S-K-32,A37-F-R-01-H-S-K-32,
A56-F-R-01-B-S-K-32,A56-F-R-01-C-S-K-32,A56-F-R-01-H-S-K-32,
A70-LR01BS-60,A70-LR01CS-60,A70-LR01HS-60,A70-LR01KS-60,
A90-LR01BS-60,A90-LR01CS-60,A90-LR01HS-60,A90-LR01KS-60,
A145-LR01BS-60,A145-LR01CS-60,A145-LR01HS-60,A145-LR01KS-60,
A16-L-R-01-B-K-32,A16-L-R-01-C-K-32,A16-L-R-01-H-K-32,
A22-L-R-01-B-K-32,A22-L-R-01-C-K-32,
A37-L-R-01-B-K-32,A37-L-R-01-C-K-32,A37-L-R-01-H-K-32,
A56-L-R-01-B-K-32,A56-L-R-01-C-K-32,A56-L-R-01-H-K-32,
A220-L-R-01-B-S-60,A220-L-R-01-C-S-60,A220-L-R-01-H-S-60,A220-L-R-01-K-S-60.
A125-L-R-01-B-S-60,A125-L-R-01-C-S-60,A125-L-R-01-H-S-60,A125-L-R-01-K-S-60.
A16-L-R-01-B-S-K-32,A16-L-R-01-C-S-K-32,A16-L-R-01-H-S-K-32,
在設(shè)計(jì)上,由于閥桿與閥套的材質(zhì)不同,線膨脹系數(shù)不同。一般閥桿用不銹鋼,線膨脹系數(shù)為1.731-6℃-1;閥套為黃銅,線膨脹系數(shù)為19.91-6℃-1,即黃銅的收縮比不銹鋼大,低溫下可能將絲扣咬住。特別是當(dāng)采用暗桿結(jié)構(gòu)及細(xì)牙螺紋時(shí),絲扣的溫度變化范圍大,螺紋間隙小,更容易產(chǎn)生咬住的現(xiàn)象。在運(yùn)轉(zhuǎn)中,由于閥門處加溫不,或閥門填料處進(jìn)水,在低溫下造成凍結(jié),或在常溫下將閥門關(guān)閉過緊,使絲扣咬壞等。