4WRPEH6C4B24L-2X/G24K0/A1M德國(guó)REXROTH比例閥,原廠原裝,現(xiàn)貨庫存,價(jià)格優(yōu)惠,武漢百士自動(dòng)化設(shè)備有限公司供應(yīng);
(1)根據(jù)用途和被控對(duì)象選擇比例閥的類型;
(2)正確了解比例閥的動(dòng)靜態(tài)指標(biāo)主要有額定輸出流量、起始電流滯環(huán)重復(fù)精度額定壓力損失溫飄、響應(yīng)特性頻率特性等;
(3)根據(jù)執(zhí)行器的工作精度要求選擇比例閥的精度,內(nèi)含反饋閉環(huán)閥的穩(wěn)態(tài)性動(dòng)態(tài)品質(zhì)好。如果比例閥的固有特性如滯環(huán)非線性等無法使被控系統(tǒng)達(dá)到理想的效果時(shí),可以使用軟件程序改善系統(tǒng)的性能;
(4)如果選擇帶先導(dǎo)閥的比例閥,要注意先導(dǎo)閥對(duì)油液污染度的要求。-般應(yīng)符合ISO 18/5標(biāo)準(zhǔn),并在油路上加裝過濾精度為10um以下的進(jìn)油過濾器;
(5)比例閥的通徑應(yīng)按執(zhí)行器在高速度時(shí)通過的流量來確定,通徑選得過大,會(huì)使系統(tǒng)的分辨率降低:
(6)比例閥必須使用與之配套的放大器,閥與放大器的距離應(yīng)盡可能地短。
方向控制按用途分為單向閥和換向閥。單向閥:只允許流體在管道中單向接通,反向即切斷。換向閥:改變不同管路間的通、斷關(guān)系。根據(jù)閥芯在閥體中的工作位置數(shù)分兩位、三位等;根據(jù)所控制的通道數(shù)分兩通、三通、四通、五通等;根據(jù)閥芯驅(qū)動(dòng)方式分手動(dòng),機(jī)動(dòng),電動(dòng),液動(dòng)等。圖2為三位四通換向閥的工作原理。P 為供油口,O 為回油口,A 、B 是通向執(zhí)行元件的輸出口。當(dāng)閥芯處於中位時(shí),全部油口切斷,執(zhí)行元件不動(dòng);當(dāng)閥芯移到右位時(shí),P 與A 通,B 與O 通;當(dāng)閥芯移到左位時(shí),P 與B 通,A 與O 通。這樣,執(zhí)行元件就能作正、反向運(yùn)動(dòng)。
60年代后期,在上述幾種液壓控制閥的基礎(chǔ)上又研制出電液比例控制閥。它的輸出量(壓力、流量)能隨輸入的電信號(hào)連續(xù)變化。電液比例控制閥按作用不同,相應(yīng)地分為電液比例壓力控制閥﹑電液比例流量控制閥和電液比例方向控制閥等。
壓力控制按用途分為溢流閥﹑減壓閥和順序閥。⑴溢流閥:能控制液壓系統(tǒng)在達(dá)到調(diào)定壓力時(shí)保持恒定狀態(tài)。用於過載保護(hù)的溢流閥稱為安全閥。當(dāng)系統(tǒng)發(fā)生故障,壓力升高到可能造成破壞的限定值時(shí),閥口會(huì)打開而溢流,以保證系統(tǒng)的安全。⑵減壓閥:能控制分支回路得到比主回路油壓低的穩(wěn)定壓力。減壓閥按它所控制的壓力功能不同,又可分為定值減壓閥(輸出壓力為恒定值)﹑定差減壓閥(輸入與輸出壓力差為定值)和定比減壓閥(輸入與輸出壓力間保持一定的比例)。⑶順序閥:能使一個(gè)執(zhí)行元件(如液壓缸﹑液壓馬達(dá)等)動(dòng)作以后,再按順序使其他執(zhí)行元件動(dòng)作。油泵產(chǎn)生的壓力先推動(dòng)液壓缸1運(yùn)動(dòng),同時(shí)通過順序閥的進(jìn)油口作用在面積A 上,當(dāng)液壓缸1運(yùn)動(dòng)完全成后,壓力升高,作用在面積A 的向上推力大於彈簧的調(diào)定值后,閥芯上升使進(jìn)油口與出油口相通,使液壓缸2運(yùn)動(dòng)。
流量控制利用調(diào)節(jié)閥芯和閥體間的節(jié)流口面積和它所產(chǎn)生的局部阻力對(duì)流量進(jìn)行調(diào)節(jié),從而控制執(zhí)行元件的運(yùn)動(dòng)速度。流量控制閥按用途分為 5種。⑴節(jié)流閥:在調(diào)定節(jié)流口面積后,能使載荷壓力變化不大和運(yùn)動(dòng)均勻性要求不高的執(zhí)行元件的運(yùn)動(dòng)速度基本上保持穩(wěn)定。⑵調(diào)速閥:在載荷壓力變化時(shí)能保持節(jié)流閥的進(jìn)出口壓差為定值。這樣,在節(jié)流口面積調(diào)定以后,不論載荷壓力如何變化,調(diào)速閥都能保持通過節(jié)流閥的流量不變,從而使執(zhí)行元件的運(yùn)動(dòng)速度穩(wěn)定。⑶分流閥:不論載荷大小,能使同一油源的兩個(gè)執(zhí)行元件得到相等流量的為等量分流閥或同步閥;得到按比例分配流量的為比例分流閥。⑷集流閥:作用與分流閥相反,使流入集流閥的流量按比例分配。⑸分流集流閥:兼具分流閥和集流閥兩種功能。
4WRPEH6C4B24L-2X/G24K0/A1M德國(guó)REXROTH比例閥
力士樂REXROTH高響應(yīng)方向閥,直動(dòng)式、帶電氣位置反饋和集成電子放大版(OBE)4WRPEH 6 -2X
R901244410 4WRPEH6CB02L-2X/G24K0/A1M
R901274673 4WRPEH6CB02L-2X/G24K0/F1M
R901374649 4WRPEH6CB02L-2X/G24K0/F1V
0811404741 4WRPEH6CB04L-2X/G24K0/A1M
R901387787 4WRPEH6CB04L-2X/G24K0/C6V
R901125451 4WRPEH6CB04L-2X/G24K0/F1M
R901129227 4WRPEH6CB04L-2X/G24K0/F1V
0811404528 4WRPEH6CB04P-2X/G24K0/A1M
0811404366 4WRPEH6CB08P-2X/G24K0/A1M
0811404527 4WRPEH6CB12L-2X/G24K0/A1M
R901299920 4WRPEH6CB12L-2X/G24K0/A1M-819
R901335676 4WRPEH6CB12L-2X/G24K0/A1M-981
R901335689 4WRPEH6CB12L-2X/G24K0/A1M-982
R901114916 4WRPEH6CB12L-2X/G24K0/F1M
R901367205 4WRPEH6CB12L-2X/G24K0/F1V
R901316279 4WRPEH6CB15P-2X/G24K0/A1M
R901316274 4WRPEH6CB15P-2X/G24K0/A1M-819
R901335678 4WRPEH6CB15P-2X/G24K0/A1M-981
0811404355 4WRPEH6CB24L-2X/G24K0/A1M
0811404529 4WRPEH6CB24L-2X/G24K0/A1M-819
R901335677 4WRPEH6CB24L-2X/G24K0/A1M-981
R901363849 4WRPEH6CB24L-2X/G24K0/A5M
0811404743 4WRPEH6CB24L-2X/G24K0/B5M
R901114917 4WRPEH6CB24L-2X/G24K0/F1M
R901295071 4WRPEH6CB24L-2X/G24K0/F1V
0811404531 4WRPEH6CB24L-2X/G24XNZ0/A1V
0811404359 4WRPEH6CB25P-2X/G24K0/A1M
0811404363 4WRPEH6CB25P-2X/G24K0/A1M-303
R901316275 4WRPEH6CB25P-2X/G24K0/A1M-819
R901335679 4WRPEH6CB25P-2X/G24K0/A1M-981
0811404639 4WRPEH6CB40L-2X/G24K0/A1M
R901288819 4WRPEH6CB40L-2X/G24K0/A1M-819
R901335693 4WRPEH6CB40L-2X/G24K0/A1M-982
R901363856 4WRPEH6CB40L-2X/G24K0/A5M
0811404640 4WRPEH6CB40L-2X/G24K0/F1M
R901363412 4WRPEH6CB40L-2X/G24K0/F1V
R901316278 4WRPEH6CB40P-2X/G24K0/A1M
R901316276 4WRPEH6CB40P-2X/G24K0/A1M-819
R901335682 4WRPEH6CB40P-2X/G24K0/A1M-981
R901335696 4WRPEH6CB40P-2X/G24K0/A1M-982
R901226219 4WRPEH6CB40P-2X/G24K0/F1M
R901366133 4WRPEH6C1B04L-2X/G24K0/F1V
R901353808 4WRPEH6C1B12L-2X/G24K0/A1M
R901303846 4WRPEH6C1B24L-2X/G24K0/A1M
0811404525 4WRPEH6C1B24L-2X/G24K0/F1M
0811404738 4WRPEH6C1B40L-2X/G24K0/A1M
0811404354 4WRPEH6C1B40L-2X/G24K0/F1M
0811404649 4WRPEH6C1B40P-2X/G24K0/A1M
0811404744 4WRPEH6C3B02L-2X/G24K0/A1M
0811404606 4WRPEH6C3B02L-2X/G24K0/A1M-816
R901409296 4WRPEH6C3B02L-2X/G24K0/A1M-816=KM
0811404629 4WRPEH6C3B02L-2X/G24K0/A1M-817
0811404630 4WRPEH6C3B02L-2X/G24K0/A1M-841
R901068998 4WRPEH6C3B02L-2X/G24K0/A1M-863
R901172445 4WRPEH6C3B02L-2X/G24K0/A1V-816
R901201762 4WRPEH6C3B02L-2X/G24K0/B5M
0811404526 4WRPEH6C3B02L-2X/G24K0/F1M
R901374653 4WRPEH6C3B02L-2X/G24K0/F1V
0811404600 4WRPEH6C3B04L-2X/G24K0/A1M
0811404607 4WRPEH6C3B04L-2X/G24K0/A1M-816
R901348337 4WRPEH6C3B04L-2X/G24K0/A1M-816=KM
0811404616 4WRPEH6C3B04L-2X/G24K0/A1M-817
0811404614 4WRPEH6C3B04L-2X/G24K0/A1M-818
0811404625 4WRPEH6C3B04L-2X/G24K0/A1M-841
0811404357 4WRPEH6C3B04L-2X/G24K0/A1V
R901131999 4WRPEH6C3B04L-2X/G24K0/A1V-816
0811404621 4WRPEH6C3B04L-2X/G24K0/B5M
0811404631 4WRPEH6C3B04L-2X/G24K0/F1M
1817414343 4WRPEH6C3B04L-2X/G24K0/F1M-816
R901094403 4WRPEH6C3B04L-2X/G24K0/F1M-885
R901PT0086 4WRPEH6C3B04L-2X/G24K0/F1M-885
R901207289 4WRPEH6C3B04L-2X/G24K0/F1V
0811404533 4WRPEH6C3B04L-2X/G24XNZ0/A1V
0811404605 4WRPEH6C3B04P-2X/G24K0/A1M
0811404627 4WRPEH6C3B04P-2X/G24K0/A1M-561
R901284350 4WRPEH6C3B04P-2X/G24K0/A1M-561
R901090319 4WRPEH6C3B04P-2X/G24K0/F1M
0811404624 4WRPEH6C3B08L-2X/G24K0/A1M-841
R901119611 4WRPEH6C3B08L-2X/G24K0/F1V
0811404601 4WRPEH6C3B12L-2X/G24K0/A1M
R901190457 4WRPEH6C3B12L-2X/G24K0/A1M-303
0811404608 4WRPEH6C3B12L-2X/G24K0/A1M-816
0811404617 4WRPEH6C3B12L-2X/G24K0/A1M-817
0811404615 4WRPEH6C3B12L-2X/G24K0/A1M-818
R901255687 4WRPEH6C3B12L-2X/G24K0/A1M-958
R901102638 4WRPEH6C3B12L-2X/G24K0/A1V
0811404530 4WRPEH6C3B12L-2X/G24K0/A1V-816
R901363845 4WRPEH6C3B12L-2X/G24K0/A5M
0811404365 4WRPEH6C3B12L-2X/G24K0/B5M
0811404632 4WRPEH6C3B12L-2X/G24K0/F1M
R901308316 4WRPEH6C3B12L-2X/G24K0/F1M-885
R901174367 4WRPEH6C3B12L-2X/G24K0/F1M-936
R901255692 4WRPEH6C3B12L-2X/G24K0/F1M-958
R901200038 4WRPEH6C3B12L-2X/G24K0/F1V
0811404368 4WRPEH6C3B12P-2X/G24K0/A1M-854
0811404642 4WRPEH6C3B15P-2X/G24K0/A1M
0811404736 4WRPEH6C3B15P-2X/G24K0/A1M-303
0811404737 4WRPEH6C3B15P-2X/G24K0/A1M-561
R901266764 4WRPEH6C3B15P-2X/G24K0/A1V
0811404626 4WRPEH6C3B15P-2X/G24K0/B5M
R901153461 4WRPEH6C3B15P-2X/G24K0/F1M
0811404602 4WRPEH6C3B24L-2X/G24K0/A1M
0811404367 4WRPEH6C3B24L-2X/G24K0/A1M-299
R901190458 4WRPEH6C3B24L-2X/G24K0/A1M-303
R901030124 4WRPEH6C3B24L-2X/G24K0/A1M-816
R901P74368 4WRPEH6C3B24L-2X/G24K0/A1M-936_PT
R901402817 4WRPEH6C3B24L-2X/G24K0/A1M=KM
R901171861 4WRPEH6C3B24L-2X/G24K0/A1V
R901208916 4WRPEH6C3B24L-2X/G24K0/A1V-936
0811404622 4WRPEH6C3B24L-2X/G24K0/B5M
0811404633 4WRPEH6C3B24L-2X/G24K0/F1M
0811404360 4WRPEH6C3B24L-2X/G24K0/F1M-299
R901130878 4WRPEH6C3B24L-2X/G24K0/F1M-303
R901179244 4WRPEH6C3B24L-2X/G24K0/F1V
R901208917 4WRPEH6C3B24L-2X/G24K0/F1V-936
0811404643 4WRPEH6C3B25P-2X/G24K0/A1M
0811404635 4WRPEH6C3B25P-2X/G24K0/B5M
R901348422 4WRPEH6C3B25P-2X/G24K0/F1M
0811404603 4WRPEH6C3B40L-2X/G24K0/A1M
0811404609 4WRPEH6C3B40L-2X/G24K0/A1M-816
R901089738 4WRPEH6C3B40L-2X/G24K0/A1M-818
0811404538 4WRPEH6C3B40L-2X/G24K0/A1V
R901172452 4WRPEH6C3B40L-2X/G24K0/A1V-816
0811404735 4WRPEH6C3B40L-2X/G24K0/B5M
0811404634 4WRPEH6C3B40L-2X/G24K0/F1M
R901172455 4WRPEH6C3B40L-2X/G24K0/F1M-816
R901222495 4WRPEH6C3B40L-2X/G24K0/F1V
R901222207 4WRPEH6C3B40L-2X/G24K0/F1V-816
R901P74370 4WRPEH6C3B40L-2X R901174370-PT
0811404644 4WRPEH6C3B40P-2X/G24K0/A1M
R901246814 4WRPEH6C3B40P-2X/G24K0/A1M-303
0811404637 4WRPEH6C3B40P-2X/G24K0/B5M
R901357059 4WRPEH6C3B40P-2X/G24K0/F1M
0811404536 4WRPEH6C3B40P-2X/G24XNZ0/A1V
0811404641 4WRPEH6C4B02L-2X/G24K0/A1M
0811404537 4WRPEH6C4B02L-2X/G24K0/F1M
R901284158 4WRPEH6C4B02L-2X/G24K0/F1V
0811404610 4WRPEH6C4B04L-2X/G24K0/A1M
0811404350 4WRPEH6C4B04L-2X/G24K0/F1M
R901307161 4WRPEH6C4B04L-2X/G24K0/F1V
R901347942 4WRPEH6C4B04P-2X/G24K0/A1M
0811404611 4WRPEH6C4B12L-2X/G24K0/A1M
0811404623 4WRPEH6C4B12L-2X/G24K0/B5M
0811404351 4WRPEH6C4B12L-2X/G24K0/F1M
R901383468 4WRPEH6C4B12L-2X/G24K0/F1V
0811404645 4WRPEH6C4B15P-2X/G24K0/A1M
R901266295 4WRPEH6C4B15P-2X/G24K0/F1M
0811404612 4WRPEH6C4B24L-2X/G24K0/A1M
0811404636 4WRPEH6C4B24L-2X/G24K0/B5M
0811404352 4WRPEH6C4B24L-2X/G24K0/F1M
R901273569 4WRPEH6C4B24L-2X/G24K0/F1V
0811404646 4WRPEH6C4B25P-2X/G24K0/A1M
R901318493 4WRPEH6C4B25P-2X/G24K0/F1M
0811404613 4WRPEH6C4B40L-2X/G24K0/A1M
0811404638 4WRPEH6C4B40L-2X/G24K0/A1V
0811404364 4WRPEH6C4B40L-2X/G24K0/B5M
0811404353 4WRPEH6C4B40L-2X/G24K0/F1M
R901136861 4WRPEH6C4B40L-2X/G24K0/F1V
0811404647 4WRPEH6C4B40P-2X/G24K0/A1M
0811404356 4WRPEH6C4B40P-2X/G24K0/B5M
R901167904 4WRPEH6C4B40P-2X/G24K0/F1M
R901387788 4WRPEH6C4B40L-2X/G24K0/C6V
R901276204 4WRPEH6C5B04L-2X/G24K0/A1M
R901213180 4WRPEH6C5B04L-2X/G24K0/F1M
R901236471 4WRPEH6C5B12L-2X/G24K0/A1M
R901231527 4WRPEH6C5B12L-2X/G24K0/F1M
R901098057 4WRPEH6C5B24L-2X/G24K0/A1M
R901137452 4WRPEH6C5B24L-2X/G24K0/F1M
0811404746 4WRPEH6C5B40L-2X/G24K0/A1M
0811404749 4WRPEH6C5B40L-2X/G24K0/F1M
R901348187 4WRPEH6C5B40L-2X/G24K0/F1V
0811404648 4WRPEH6C5B40P-2X/G24K0/A1M
0811404358 4WRPEH6C6B02L-2X/G24K0/A1M
0811404628 4WRPEH6K3B50P-2X/G24K0/A1M
0811404604 4WRPEH6KB50P-2X/G24K0/A1M
液壓站是由液壓泵、驅(qū)動(dòng)用電動(dòng)機(jī)、油箱、方向閥、節(jié)流閥、溢流閥等構(gòu)成的液壓源裝置或包括控制閥在內(nèi)的液壓裝置。按驅(qū)動(dòng)裝置要求的流向、壓力和流量供油,適用于驅(qū)動(dòng)裝置與液壓站分離的各種機(jī)械上,將液壓站與驅(qū)動(dòng)裝置(油缸或馬達(dá))用油管相連,液壓系統(tǒng)即可實(shí)現(xiàn)各種規(guī)定的動(dòng)作。
液壓站作用液壓站一般是為大中型工業(yè)生產(chǎn)的機(jī)械運(yùn)行提供潤(rùn)滑、動(dòng)力的機(jī)電裝置。
使用液壓系統(tǒng)是由于液壓系統(tǒng)在動(dòng)力傳遞中具有用途廣、效率高和構(gòu)造簡(jiǎn)單的特點(diǎn)。液壓系統(tǒng)的主要任務(wù)就是將動(dòng)力從一種形式轉(zhuǎn)變成另一種形式。
液壓站又稱液壓泵站,電機(jī)帶動(dòng)油泵旋轉(zhuǎn),泵從油箱中吸油后打油,將機(jī)械能轉(zhuǎn)化為液壓油的壓力能,液壓油通過集成塊(或閥組合)被液壓閥實(shí)現(xiàn)了方向、壓力、流量調(diào)節(jié)后經(jīng)外接管路傳輸?shù)揭簤簷C(jī)械的油缸或油馬達(dá)中,從而控制了液動(dòng)機(jī)方向的變換、力量的大小及速度的快慢,推動(dòng)各種液壓機(jī)械做功。
液壓站是獨(dú)立的液壓裝置,它按驅(qū)動(dòng)裝置(主機(jī))要求供油,并控制油流的方向、壓力和流量,它適用于主機(jī)與液壓裝置可分離的各種液壓機(jī)械下,由電機(jī)帶動(dòng)油泵旋轉(zhuǎn),泵從油箱中吸油后打油,將機(jī)械能轉(zhuǎn)化為液壓油的壓力能。
用戶購買后只要將液壓站與主機(jī)上的執(zhí)行機(jī)構(gòu)(油缸和油馬達(dá))用油管相連,液壓機(jī)械即可實(shí)現(xiàn)各種規(guī)定的動(dòng)作、工作循環(huán)。
力士樂REXROTH液壓元件應(yīng)用行業(yè):注塑機(jī)、吹塑機(jī)、橡膠和發(fā)泡機(jī)、陶瓷壓機(jī)、同步折彎?rùn)C(jī)(折板機(jī)),、剪板機(jī)(剪床)、沖切/步?jīng)_、金屬壓力機(jī)、彎曲/鋸床、機(jī)床、食品機(jī)械、皮革/鞋機(jī)、木材/造紙機(jī)械、鋼鐵業(yè)/鑄造、壓鑄機(jī)/擠壓機(jī)、電廠、生態(tài)能源(風(fēng)能-水力-太陽能)設(shè)備、油和天然氣工業(yè)設(shè)備、混凝土泵、路機(jī)、鉆井/開采設(shè)備、起重機(jī)、升降機(jī)/叉車、推土機(jī)、道路,隧道,水壩工程設(shè)備、壓縮機(jī)、街道維修設(shè)備、模擬器/娛樂設(shè)備、卡車、鐵路工程設(shè)備、航空工業(yè)設(shè)備、船舶/航海工業(yè)設(shè)備、打谷機(jī)/噴灑機(jī)、拖拉機(jī)/收割機(jī)。