詳細(xì)介紹
意大利威托WATO電液換向閥
電磁調(diào)速電動(dòng)機(jī)由籠型電動(dòng)機(jī)、電磁轉(zhuǎn)差離合器和直流勵(lì)磁電源(控制器)三部分組成。直流勵(lì)磁電源功率較小,通常由單相半波或全波晶閘管整流器組成,改變晶閘管的導(dǎo)通角,可以改變勵(lì)磁電流的大小。 電磁轉(zhuǎn)差離合器由電樞、磁極和勵(lì)磁繞組三部分組成。電樞和后者沒(méi)有機(jī)械,都能自由轉(zhuǎn)動(dòng)。電樞與電動(dòng)機(jī)轉(zhuǎn)子同軸聯(lián)接稱(chēng)主動(dòng)部分,由電動(dòng)機(jī)帶動(dòng);磁極用聯(lián)軸節(jié)與負(fù)載軸對(duì)接稱(chēng)從動(dòng)部分。當(dāng)電樞與磁極均為靜止時(shí),如勵(lì)磁繞組通以直流,則沿氣隙圓周表面將形成若干對(duì)N、S極**替的磁極,其磁通經(jīng)過(guò)電樞。當(dāng)電樞隨拖動(dòng)電動(dòng)機(jī)旋轉(zhuǎn)時(shí),由于電樞與磁極間相對(duì)運(yùn)動(dòng),因而使電樞感應(yīng)產(chǎn)生渦流,此渦流與磁通相互作用產(chǎn)生轉(zhuǎn)矩,帶動(dòng)有磁極的轉(zhuǎn)子按同一方向旋轉(zhuǎn),但其轉(zhuǎn)速恒低于電樞的轉(zhuǎn)速N1,這是一種轉(zhuǎn)差調(diào)速方式,變動(dòng)轉(zhuǎn)差離合器的直流勵(lì)磁電流,便可改變離合器的輸出轉(zhuǎn)矩和轉(zhuǎn)速。
意大利威托WATO電液換向閥
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WDPHE-2670 WDPHE-2671 WDPHE-2672 WDPHE-2673
WDPHE-2674 WDPHE-2675 WDPHE-2676 WDPHE-2677
WDPHE-26719 WDPHE-26739 WDPHE-26758 WDPHE-26791
WDPHE-26793/A WDPHE-2710 WDPHE-2711-24DC
WDPHE-2711-220AC WDPHE-2712 WDPHE-2713-220AC
WDPHE-2713-24DC WDPHE-2714 WDPHE-2715 WDPHE-2716
WDPHE-2717 WDPHE-27119 WDPHE-27139/A WDPHE-27158
WDPHE-27191 WDPHE-27193 WDPHE-2750 WDPHE-2751/A
WDPHE-2752 WDPHE-2753 WDPHE-2754 WDPHE-2755
WDPHE-2756 WDPHE-2717/A WDPHE-2758 WDPHE-27519
WDPHE-27539 WDPHE-27558 WDPHE-27591 WDPHE-27593
WDPHE-3610 WDPHE-3611 WDPHE-3612 WDPHE-3613
WDPHE-3614 WDPHE-3615 WDPHE-3616 WDPHE-3717
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WDPHE-3632 WDPHE-3633 WDPHE-3634 WDPHE-3635/A WDPHE-3636