HONGYI弘一PV2R12 PV2R13 PV2R31 PV2R11 PV2R21双联高压叶片泵32

PV11R10，PV11R20

PV2PV2R1-10-F-RAA-43，PV2PV2R1-12-F-RAA-43，PV2PV2R1-14-F-RAA-43，PV2PV2R1-14-F-RAR-43，PV2PV2R1-17-F-RAA-43，PV2PV2R1-19-F-RAA-43，PV2PV2R1-23-F-RAA-43，PV2PV2R1-25-F-RAA-43，PV2PV2R1-31-F-RAA-43，PV2PV2R1-31-L-RAA-43，PV2PV2R1-6-F-RAA-43，PV2PV2R1-8-F-RAA-43，PV2PV2R2-33-F-RAA-41，PV2PV2R2-41-F-RAA-41，PV2PV2R2-47-F-RAA-41，PV2PV2R2-53-F-RAA-41，PV2PV2R2-59-F-RAA-41，PV2PV2R2-65-F-RAA-41，PV2PV2R2-65-F-RAL-41，PV2PV2R2-75-F-RAA-4103，PV2PV2R3-116-F-RAA-31，PV2PV2R3-116-F-RLB-31，PV2PV2R3-76-F-RAA-31，PV2PV2R3-94-F-RLB-31，PV2PV2R4-184-F-RAAA-30，pv2r1-10，pv2r1-10-f-raa-40，PV2R1-10-F-RAA-41，pv2r1-10-f-raa-4222，pv2r1-10-f-raa-43，PV2R1-12-FR，PV2R1-12-F-RAA-41，PV2R1-12-F-RAA-43，pv2r1-12-f-rar-41，pv2r1-14-f-r，PV2R1-14-F-RAA-41，PV2R1-14-F-RAA-43，PV2R1-14-F-RAR-43，pv2r1-17，PV2R1-17-F-RAA-41，PV2R1-17-F-RAA-43，pv2r1-17-f-ral-41，pv2r1-17-l-raa-41，PV2R1-19-F-RAA-41，PV2R1-19-F-RAA-43，PV2R12-10-41-F-REAA-43，PV2R12-12-26-F-REAA-43，PV2R12-12-26-F-REAR-42，PV2R12-12-53-F-RELA-43，PV2R12-14-53-F-REAA-43，PV2R12-14-53-F-RFAR-43，PV2R12-19-41-F-REAA-43，PV2R12-19-65-F-REAA-43，PV2R12-23-59-F-REAA-43，PV2R12-25-33-F-REAA-43，PV2R12-25-47-F-REAA-43，PV2R12-25-59-F-REAA-43，pv2r1-23，PV2R12-31-33-F-REAA-43，PV2R12-31-33-F-REAR-4326，PV2R12-31-59-F-REAA-43，PV2R12-31-65-F-REAA-43，pv2r1-23-f-raa-41，PV2R1-23-F-RAA-43，pv2r1-25-f-raa，PV2R1-25-F-RAA-41，PV2R1-25-F-RAA-43，pv2r1-25-l-raa-41，PV2R12-6-59-F-REAA-43，PV2R12-6-65-F-REAA-43，PV2R12-8-33-F-RFAR-43，pv2r1-28-f-raa-41，pv2r1-31，PV2R13-10-116-F-REAA-43，PV2R1-31-F-RAA41，pv2r1-31-f-raa-41，PV2R1-31-F-RAA-43，pv2r1-31-f-rab-41，PV2R1-31-L-RAA-43，pv2r1-6-f-raa，pv2r1-6-f-raa-40，PV2R1-6-F-RAA-41，pv2r1-6-f-raa-4222，PV2R1-6-F-RAA-43，pv2r1-6-l-raa-41，pv2r1-8，pv2r1-8-f-raa-41，PV2R1-8-F-RAA-43，PV2R2-，pv2r2-26，pv2r2-26-f-raa，pv2r2-26-f-raa-41，pv2r2-33，pv2r2-33-f-r，pv2r2-33-f-raa-41，pv2r2-33-f-rar-41，PV2R23-41-116-F-RAAA-41，PV2R23-41-94-F-REAA-41，pv2r2-41-f-raa，pv2r2-41-f-raa-40，PV2R2-41-F-RAA-41，pv2r2-41-l-raa-41，PV2R24-33-136-F-REAA-31，pv2r2-47，pv2r2-47-f-r，PV2R2-47-F-RAA-41，PV2R24A-41-FRAAA-10，pv2r2-53-f-r，PV2R2-53-F-RAA-41，PV2R2-59-F-RAA-41，pv2r2-59-f-rab-41，pv2r2-65，PV2R2-65-F-RAA-41，pv2r2-65-f-raa-4118，PV2R2-65-F-RAL-41，PV2R2-75-F-RAA-4103，PV2R3，pv2r3-116-f-raa-31，PV2R3-116-F-RLB-31，pv2r3-116-l-raa-31，pv2r3-116-l-rab-31，pv2r3-125-f-raa-31，PV2R3-136-F-RAA-31，PV2R34-116-153-L-REAA-31，pv2r34-116-237，PV2R34A-76-FRAAA-10，pv2r3-52，pv2r3-52-f-raa-31，pv2r3-52-l-raa-31，pv2r3-60-f-raa-31，pv2r3-66-l-raa-31，pv2r3-76，PV2R3-76-F-RAA-31，pv2r3-76-l-raa-31，pv2r3-85-f-raa-31，PV2R3-94-F-RAA-31，PV2R3-94-F-RLB-31，pv2r3-94-l-raa-31，PV2R4-136-F-RAA-30，PV2R4-153F-RAA-30，pv2r4-153-f-raa-30，PV2R4-184F-RAA-30，pv2r4-184-f-raa-30，PV2R4-184-F-RAAA-30，pv2r4-184-f-ral-30，pv2r4-184-l-raa-30，pv2r4-184-l-ral-30，PV2R4-200F-RAA-30，pv2r4-200-f-raa-30，pv2r4-200-l-raa-30，pv2r4-237，PV2R4-237F-RAA-30，pv2r4-237-f-raa-30，pv2r4-237-f-ral-30，PV2R4A-138-FRAA-10，PV2R4A-162-FRAA-10，PV2R4A-193-FRAA-10，PV2RPV2R12-10-41-F-REAA-43，PV2RPV2R12-12-26-F-REAA-43，PV2RPV2R12-12-26-F-REAR-42，PV2RPV2R12-12-53-F-RELA-43，PV2RPV2R12-14-53-F-REAA-43，PV2RPV2R12-14-53-F-RFAR-43，PV2RPV2R12-19-41-F-REAA-43，PV2RPV2R12-19-65-F-REAA-43，PV2RPV2R12-23-59-F-REAA-43，PV2RPV2R12-25-33-F-REAA-43，PV2RPV2R12-25-47-F-REAA-43，PV2RPV2R12-25-59-F-REAA-43，PV2RPV2R12-31-33-F-REAA-43，PV2RPV2R12-31-59-F-REAA-43，PV2RPV2R12-31-65-F-REAA-43，PV2RPV2R12-6-59-F-REAA-43，PV2RPV2R12-6-65-F-REAA-43，PV2RPV2R12-8-33-F-RFAR-43，PV2RPV2R13-10-116-F-REAA-43，PV2RPV2R23-41-116-F-RAAA-41，PV2RPV2R23-41-94-F-REAA-41，PV2RPV2R24-33-136-F-REAA-31，PV2RPV2R34-116-153-L-REAA-31

YBE-8，YBE-16，YBE-25，YBE-32，YBE-40，YBE-50，YBE-63，YBE-80，YBE-100，YBE-125，YBE-160，YBE-200

2520V15A6-1AB22R，2520V14A2-1AC22R，2520V14A3-1AB22R，2520V14A3-1AD22R，2520V14A4-1AC22R，2520V14A5-1AB22R，2520V14A8-1AD22R，2520V14A9-1AC22R，2520V15A10-1AC22R，2520V14A12-1AC22R，2520V14A14-1AB22R，2520V14A14-1AD22R，2520V10A9-1AB22R，4535VQ60A35-1BB22R，4535VQ60A25-86DB22R，4535VQ50A35-1BB22R，4535VQ60A25-86DA22R，2520V12A12-1AB22R，2520V10A8-1AB22R，2520V10A8-1AD22R，2520V10A7-1AD22R，2520V10A9-1AC22R，45VQ60A-1D22L，2520V10A10-1AB22R，2520V10A14-1AC22R，2520V10A2-1AB22R，2520V10A12-1AB22R，2520V10A12-1AD22R

4535VQ66A38-86AA22R

45VQ42A-86B22R，45VQ42A-86A22R，2520V10A10-1AC22R，45VQ60A-1C22L

2520V12A7-1AC22R，2520V12A6-1AD22R，2520V12A7-1AB22R，2520V12A9-1AB22R，2520V12A8-1AB22R，2520V12A9-1AD22R，2520V12A3-1AB22R，2520V12A2-1AB22R，2520V14A11-1AD22R，2520V14A11-1AB22R，2520V14A10-1AC22R，2520V10A4-1AB22R，2520V10A4-1AC22R，2520V12A10-1AD22R，2520V12A12-1AD22R，2520V12A11-1AB22R，2520V10A7-1AC22R，2520V10A6-1AB22R，2520V10A5-1AB22R，2520V10A2-1AC22R，2520V10A6-1AD22R

4520VQ45A5-1BB22R，4520VQ42A12-86DD22R，4520VQ50A11-1CC22R

35VQ30A-1D22R，4520VQ42A11-1AB22R，35VQ38A-1A22L，3525VQ38A21-86BB22R，35VQ25A-1B22R

3525VQ38A17-1AA22R，3525VQ35A14-1CC22R，3525VQ38A14-11AA22R

3520VQ35A8-86AA22L，3525VQ25A12-1CB22R，3525VQ-25A-10-1C22R，3520VQ30A8-1CC22R，3520VQ38A14-1AA22R，3520VQ30A8-1AA22R，3520VQ30A14-1AA22R，3520VQ35A14-1BB22R，3520VQ30A11-1BB22R，3520VQ-38A-5-1C22R，3520VQ30A5-1DC22R

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4520V-60A-11-1C22R，4520V50A12-1AA22R，4520V50A11-1CC22R，4520V42A12-86DD22R，4520V42A12-1CC22R，4520V60A14-1CC22R，4520V60A11-1AD22R，4525V60A21-1DA22R，4525V60A21-1AA22R，4525VQ-50A14，4525VQ-50A21，4525VQ-42A21，4525VQ-42A12，4535V50A30-86BB22R，4535V50A30-86AA22R，4535V50A30-86CC22R，4535V50A30-86DA22R，4535V50A35-1BB22R，4535V50A35-86CD22R，4535V50A38-1AA22R，4535V50A38-1AC22R，4535V42A30-1DD22R，4535V42A35-86AA22R，4535V50A-25-1C22R，4535V42A38-86DD22R，4535V50A25-1AA22R，4535V50A25-1DB22R，4535V50A25-86DD22R，4525V60A12-1DD22R，4525V60A17-1AA22R，4525V42A21-86DD22R，4525V50A-10-1C22R，4525V42A21-1DA22R，4525V42A21-1BD22R，4525V50A-12-1C22R，4525V50A-17-1C22R，4525V50A17-1DD22R，4525V50A17-1AA22R，4535V42A-25-1C22R，4525V50A14-1AA22R，4525VQ-60A21，4525VQ-60A14，4535V-45A-25-1C22R，4535V42A25-1AD22R，4535V42A25-86AA22R，4535V42A25-1CC22R，4525V60A21-1DD22L，4535V42A-30-1C22R，4535V60A351BA22R，4535V60A38-1AA22R，4535VQ50A30-1DD20，4535V60A38-1AD22R，4535V60A38-1AB22R，4535V60A38-1BA22R，4535V66A38-86DD20-260，4535V60A38-86BB22R，4535VQ-42A35，4535VQ-50A25，4535VQ-42A25，45V42A-86D22R，45V42A-1B22R，45V42A-1D22R，4535V60A38-86CC22R，45V42A-86B22R，4535VQ-50A38，4535VQ-60A30，45VQ-50A，4535VQ-60A35，4535VQ60A38-219CC20，4535VQ-50A35，4535V60A30-1CC22R，4535V60A30-86AA22R，4535V60A30-1BB22R，4535V50A30-1AA22R，4535V50A25-86BB22R，4535V60A-25-1C22R，4535V60A35-86BA22R，4535V60A35-86AA22R，4535V60A30-86CC22R，4535V60A35-1AA22R，4535V60A25-86BD22R，4535V60A25-86AA22R，4535V60A25-86DA22R，4535V60A25-1DA22R，4535V50AM30-86AA22R，4535V50A38-1DA22R，4535V60A38-1BB22R，4535V60A38-86AA22R，4535V60A38-86BA22R，4535V60A38-1DD22R，4535V60A25-1AA-22R

液压油泵概述

一．液压泵的压力

液压泵的压力参数主要指工作压力和额定压力。

(1)工作压力p。 液压泵的工作压力是指泵工作时输出液体的实际压力。其大小是由外负载决定的，当负载增加时，液压泵的工作压力升高；当负载减小时，液压泵的工作压力下降。

(2)额定压力pn。 液压泵的额定压力是指泵在正常工作时允许达到的最大工作压力。正常工作时不允许超过液压泵的额定压力，超过此值即为过载；液压泵的最大工作压力受泵零件结构强度和泄漏程度的限制。

由于液压传动的用途不同，系统所需要的压力也不同，为了便于液压元件的设计、生产和使用，将压力分为以下几个等级，如下表所示。

压力分级

压力分级

二．液压泵的排量

液压泵的排量是指按泵轴每转一周，由密封腔几何尺寸变化计算而得出的排出液体的体积。排量可以用V来表示。排量的单位为L/r或mL/r。

三．液压泵的流量

液压泵的流量有理论流量、实际流量和额定流量之分。

(1)理论流量qt。液压泵的理论流量是指泵在单位时间内由密封腔几何尺寸变化计算而得出的排出液体的体积。理论流量用qt表示，它与液压泵的工作压力无关，它等于泵的排量V与其转速n的乘积，即

qt=V×n              （1-1）

(2)实际流量q。液压泵的实际流量是指泵工作时实际输出的流量，可以用q来表示。由于液压泵存在泄漏问题，所以其实际流量总是小于理论流量。若泄漏量 为△q，则有

q = qt-△q             (1-2)

(3)额定流量qn。液压泵的额定流量是指泵在正常工作条件下，试验标准规定必须保证的输出流量。

四．液压泵的功率

液压泵输入的是原动机的机械能，表现为转矩T和转速n；其输出的是液体压力能，表现为压力p和流量q(qt - △p)。当用液压泵输出的压力能驱动液压缸克服负载阻力F，并以速度v作匀速运动时（若不考虑能量损失），则液压泵和液压缸的理论功率相等，即

Pt-Tt2πn=Fv=pAv=pVn=pqt           (1-3)

于是Tt=pV/2π          (1-4)

式中n——液压泵的转速；

Tt——驱动液压泵的理论转矩；

p——液压泵的工作压力；

V——液压泵的排量；

A——液压缸的有效工作面积。

如果用驱动液压泵的实际转矩T代替式中理论转矩Tt，则可得到液压泵的实际输A功率P；用液压泵的实际流量q代替式中理论流量qt，可以得到液压泵的实际输出功率P0。

(1)泵的输入功率Pi

Pi = T2πn                  (1-5)

(2)泵的输出功率P0

P0 = pq/60                (1-6)

五．液压泵的效率

液压泵的输出功率总是小于输入功率，两者之差即为功率损失。功率损失又可分为容积损失（泄漏造成的流量损失）和机械损失（摩擦造成的转矩损失）。

通常容积损失用容积效率ηv来表示，机械损失用机械效率ηm来表示。

容积效率是指液压泵的实际流量与理论流量比值，即

ηv=q/qt                      (1-7)

液压泵的泄漏量随压力升高而增大，相应其容积效率也随压力升高而降低。机械效率是指驱动液压泵的理论转矩与实际转矩的比值，即

ηm=Tt/T                      (1-8)

由于Tt = pV/2π，代人式(1-8)中，则有

ηm=pV/2πT                      (1-9)

液压泵的总效率η为其实际输出的功率P0和实际输入功率的比值,即

η=P0/Pi=pq/2πnT=(pVn/2πnT)(q/Vn)= ηmηv                   (1-10)

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