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液壓油泵

PVL1-31-F-U油泵HONGYI葉片泵PVL1-14/17/19/23/25/31-f-1R-U

2026年03月18日 液壓油泵 游覽量:遞增失敗!

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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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

液壓馬達概述


一. 液壓馬達的作用和分類


從能量轉換的觀點來看,液壓泵與液壓馬達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工況;反之,當液壓馬達的主軸由外力矩驅動旋轉時,也可變為液壓泵工況。因為它們具有同樣的基本結構要素——密閉而又可以周期變化的容積和相應的配油機構。


但是,由于液壓馬達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和液壓泵之間,仍存在許多差別。首先,液壓馬達應能夠正、反轉,因而要求其內部結構對稱;液壓馬達的轉速范圍需要足夠大,特別對它的最低穩定轉速有一定的要求,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矩。由于存在著這些差別,使得液壓馬達和液壓泵在結構上比較相似,但不能可逆工作。


液壓馬達按其結構來分可以分為齒輪式、葉片式、柱塞式等幾種,按額定轉速可分為高速和低速兩大類。額定轉速高于500r/min的屬于高速液壓馬達,額定轉速低于500r/min的屬于低速液壓馬達。高速液壓馬達的基本形式有齒輪式、螺桿式、葉片式和軸向柱塞式等。它們的主要特點是轉速較高、轉動慣量小,便于啟動和制動,調節(調速及換向)靈敏度高。通常高速液壓馬達輸出轉矩不大,所以又稱為高速小轉矩液壓馬達。低速液壓馬達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構形式,低速液壓馬達的主要特點是排量大、體積大轉速低(有時可達每分鐘幾轉甚至零點幾轉),因此可直接與工作機構連接,不需要減速裝置,使傳動機構大為簡化,通常低速液壓馬達輸出轉矩較大,所以又稱為低速大轉矩液壓馬達。



二. 液壓馬達的性能參數


1.液壓馬達的客積效率和轉速


在液壓馬達的各項性能參數中,壓力、排量、流量等參數與液壓泵同類參數有相似的含義,其原則差別在于:在泵中它們是輸出參數,在液壓馬達中則是輸入參數。


在不考慮泄漏的情況下,液壓馬達每轉所需要輸入的液體體積稱為液壓馬達的排量VM,單位時間所需輸入的液體體積稱為液壓馬達的理論流量qTm,即真正轉換成輸出轉速所需的流量,則


qTm=VMnM                          (1-1)


但由于液壓馬達存在泄漏,故實際所需流量應大于理論流量。設液壓馬達的泄漏量為△q,則實際供給液壓馬達的流量為


qM=qtM+△q                        (1-2)


液壓馬達的容積效率ηVM為理論流量qtM比實際流量qM,即


ηVM=qtM/qM=(VMnM)/qM                    (1-3)


液壓馬達的轉速nM公式為


nM=(qM/Vm) ηVM                     (1-4)


衡量液壓馬達轉速性能好壞的一個重要指標是最低穩定轉速,它是指液壓馬達在額定負載下不出現爬行(抖動或時轉時停)現象的最低轉速。在實際工作中,一般都希望最低穩定轉速越小越好,這樣就可以擴大液壓馬達的變速范圍。


2.液壓馬達的機械效率和轉矩


因液壓馬達存在摩擦損失,使液壓馬達輸出的實際轉矩TM小于理論轉矩TtM,設由摩擦造成的轉矩損失為△TM,則TM=TtM-△TM,液壓馬達的機械效率ηmM為實際輸出轉矩TM與理論轉矩TtM的比值,即


ηmM=TM/TtM                      (1-5)


則液壓馬達的輸出轉矩表達式為


TM=TtMηmM=(△pVM/2π) ηmM              (1-6)


式中,△p為液壓馬達進、出口處的壓力差。


3.液壓馬達的總效率


液壓馬達的總效率為液壓馬達的輸出功率PoM與液壓馬達的輸入功率PiM之比,即


ηM=PoM/PiM=T2πnM/pq=ηVMηmM              (1-7)


由上式可知,液壓馬達的總效率等于液壓馬達的容積效率ηVM與液壓馬達的機械效率ηmM的乘積。

本文由蘇州逐利機電整理發布,如需轉載請瀏覽來源及出處,原文地址:http://m.mfchsuyu.cn/yyyb/595.html

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