PVL1-31-F-U油泵HONGYI葉片泵PVL1-14/17/19/23/25/31-f-1R-U
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
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液壓馬達(dá)概述
一. 液壓馬達(dá)的作用和分類
從能量轉(zhuǎn)換的觀點(diǎn)來看，液壓泵與液壓馬達(dá)是可逆工作的液壓元件，向任何一種液壓泵輸入工作液體，都可使其變成液壓馬達(dá)工況；反之，當(dāng)液壓馬達(dá)的主軸由外力矩驅(qū)動旋轉(zhuǎn)時，也可變?yōu)橐簤罕霉r。因為它們具有同樣的基本結(jié)構(gòu)要素——密閉而又可以周期變化的容積和相應(yīng)的配油機(jī)構(gòu)。
但是，由于液壓馬達(dá)和液壓泵的工作條件不同，對它們的性能要求也不一樣，所以同類型的液壓馬達(dá)和液壓泵之間，仍存在許多差別。首先，液壓馬達(dá)應(yīng)能夠正、反轉(zhuǎn)，因而要求其內(nèi)部結(jié)構(gòu)對稱；液壓馬達(dá)的轉(zhuǎn)速范圍需要足夠大，特別對它的最低穩(wěn)定轉(zhuǎn)速有一定的要求，因此它通常都采用滾動軸承或靜壓滑動軸承；其次，液壓馬達(dá)由于在輸入壓力油條件下工作，因而不必具備自吸能力，但需要一定的初始密封性才能提供必要的啟動轉(zhuǎn)矩。由于存在著這些差別，使得液壓馬達(dá)和液壓泵在結(jié)構(gòu)上比較相似，但不能可逆工作。
液壓馬達(dá)按其結(jié)構(gòu)來分可以分為齒輪式、葉片式、柱塞式等幾種，按額定轉(zhuǎn)速可分為高速和低速兩大類。額定轉(zhuǎn)速高于500r/min的屬于高速液壓馬達(dá)，額定轉(zhuǎn)速低于500r/min的屬于低速液壓馬達(dá)。高速液壓馬達(dá)的基本形式有齒輪式、螺桿式、葉片式和軸向柱塞式等。它們的主要特點(diǎn)是轉(zhuǎn)速較高、轉(zhuǎn)動慣量小，便于啟動和制動，調(diào)節(jié)（調(diào)速及換向）靈敏度高。通常高速液壓馬達(dá)輸出轉(zhuǎn)矩不大，所以又稱為高速小轉(zhuǎn)矩液壓馬達(dá)。低速液壓馬達(dá)的基本形式是徑向柱塞式，此外在軸向柱塞式、葉片式和齒輪式中也有低速的結(jié)構(gòu)形式，低速液壓馬達(dá)的主要特點(diǎn)是排量大、體積大轉(zhuǎn)速低（有時可達(dá)每分鐘幾轉(zhuǎn)甚至零點(diǎn)幾轉(zhuǎn)），因此可直接與工作機(jī)構(gòu)連接，不需要減速裝置，使傳動機(jī)構(gòu)大為簡化，通常低速液壓馬達(dá)輸出轉(zhuǎn)矩較大，所以又稱為低速大轉(zhuǎn)矩液壓馬達(dá)。
二. 液壓馬達(dá)的性能參數(shù)
1．液壓馬達(dá)的客積效率和轉(zhuǎn)速
在液壓馬達(dá)的各項性能參數(shù)中，壓力、排量、流量等參數(shù)與液壓泵同類參數(shù)有相似的含義，其原則差別在于：在泵中它們是輸出參數(shù)，在液壓馬達(dá)中則是輸入?yún)?shù)。
在不考慮泄漏的情況下，液壓馬達(dá)每轉(zhuǎn)所需要輸入的液體體積稱為液壓馬達(dá)的排量VM，單位時間所需輸入的液體體積稱為液壓馬達(dá)的理論流量qTm，即真正轉(zhuǎn)換成輸出轉(zhuǎn)速所需的流量，則
qTm=VMnM (1-1)
但由于液壓馬達(dá)存在泄漏，故實際所需流量應(yīng)大于理論流量。設(shè)液壓馬達(dá)的泄漏量為△q，則實際供給液壓馬達(dá)的流量為
qM=qtM+△q (1-2)
液壓馬達(dá)的容積效率ηVM為理論流量qtM比實際流量qM，即
ηVM=qtM/qM=(VMnM)/qM (1-3)
液壓馬達(dá)的轉(zhuǎn)速nM公式為
nM=(qM/Vm) ηVM (1-4)
衡量液壓馬達(dá)轉(zhuǎn)速性能好壞的一個重要指標(biāo)是最低穩(wěn)定轉(zhuǎn)速，它是指液壓馬達(dá)在額定負(fù)載下不出現(xiàn)爬行（抖動或時轉(zhuǎn)時停）現(xiàn)象的最低轉(zhuǎn)速。在實際工作中，一般都希望最低穩(wěn)定轉(zhuǎn)速越小越好，這樣就可以擴(kuò)大液壓馬達(dá)的變速范圍。
2．液壓馬達(dá)的機(jī)械效率和轉(zhuǎn)矩
因液壓馬達(dá)存在摩擦損失，使液壓馬達(dá)輸出的實際轉(zhuǎn)矩TM小于理論轉(zhuǎn)矩TtM，設(shè)由摩擦造成的轉(zhuǎn)矩?fù)p失為△TM，則TM=TtM-△TM，液壓馬達(dá)的機(jī)械效率ηmM為實際輸出轉(zhuǎn)矩TM與理論轉(zhuǎn)矩TtM的比值，即
ηmM=TM/TtM (1-5)
則液壓馬達(dá)的輸出轉(zhuǎn)矩表達(dá)式為
TM=TtMηmM=(△pVM/2π) ηmM (1-6)
式中，△p為液壓馬達(dá)進(jìn)、出口處的壓力差。
3．液壓馬達(dá)的總效率
液壓馬達(dá)的總效率為液壓馬達(dá)的輸出功率PoM與液壓馬達(dá)的輸入功率PiM之比，即
ηM=PoM/PiM=T2πnM/pq=ηVMηmM (1-7)
由上式可知，液壓馬達(dá)的總效率等于液壓馬達(dá)的容積效率ηVM與液壓馬達(dá)的機(jī)械效率ηmM的乘積。
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