• 力士乐二通插装阀LC40A40D7X/

    详细信息

     品牌:力士乐  型号:R900935732  加工定制:否  
     材质:铸铁  连接形式:法兰  类型:直动式  
     适用介质:油品  压力环境:常压  工作温度:常温  
     流动方向:单向  介质温度:37 ℃ 工作压差:300  
     适用范围:液压系统    
    力士乐二通插装阀LC40A40D7X/ R900935732,德国REXROTH二通插装阀,购买进口液压、气动、自动化控制工业配件,认准“上海韦米机电设备有限公司”,保证产品原厂原装,价格优惠,售后无忧,欢迎新老客户咨询采购!
     


    插装阀在液压系统中的应用.
    插装阀具有内阻小,结构简单,工作可靠,标准化程度高,对于大流量、高压力、较复杂的液压系统可以显著的减小尺寸和重量等特点;而实心胎硫化机组液压系统工作时需要大流量、高压力油,因而,此系统可以应用插装阀满足要求。
    一、
    插装阀的工作原理及特点
    插装阀是另一类液压控制阀的统称。其基本核心元件是一种液控型、单控制口的装于油路主级中的两通液阻单元(故又称二通插装阀)。将一一个或若干个插入元件进行不同的组合,并配以相应的先导控制级,可以组成插装阀的各种控制功能单元。比如方向控制功能单元、压力控制单元、流量控制单元、复合控制功能单元。
    插装阀具有以下特点:内阻小,适宜大流量工作,阀口多数采用锥面密封,因而泄漏小,对于乳化液等地粘度的工作介质也适宜,结构简单、工作可靠、标准化程度高;对于大流量、高压力、较复杂的液压系统可以显著的减小尺寸和重量。
    其结构:先导阀,控制盖板,插装件。
    它是由插入元件、控制盖板、通道块三大部分组成。插入元件有阀芯、阀套、弹簧和密封件组成;控制盖板上根据插装阀的不同控制功能,安装有相应的先导控制级元件;通道块既是嵌入插入元件及安装控制盖板的基础阀体,又是主油路和控制油路的连通体。其中A、B为主油路通口,C为控制油路通口。A、B、C油口的压力和作用面积分别为PA、PB、PC和A1、A2、A3,A3=A1+A2, Fs为弹簧作用力。
    二通插装阀通过不同的盖板和各种先导阀组合,便可构成方向控制阀、压力控制阀和流量控制阀。
    1、插装阀构成压力控制阀
    根据插装阀的工作原理当PAA1+PBA2 >PCA3+FS时,阀芯开启,油路A、B接通。插装阀C14,当电磁阀得电时,插装阀C14的C口直接通油箱,其C口压力为零。由此可知油路A、B接通,当A口的压力大于弹簧力的时候,系统压力油回油箱,所以此插装阀起溢流阀的作用,控制油缸径油口压力。
    2、插装阀构成方向控制阀
    由液压动作程序表可知,同时得电,来控制主油缸上行运动。当两者同时得电时插装阀C11、C13的C口通油箱PA>FS时,A、B口直接相通,油液可从A流向B口;当只有一个电磁阀得电时,主油缸下行运动。其中C13的PA 3、插装阀构成流量控制阀
    在阀的顶盖上有阀芯升高限位装置通过调节限位装置的位置,便可调节阀口通流截面的大小,从而调节了流量。通过调节流量,可调节主油缸的下行速度。此插装阀作节流阀。
    三、
    插装阀在液压系统的简单应用,通过更为复杂的组合,可以实现更多的液压阀的功能。通过组合,插装阀可作为压力控制阀(顺序阀、减压阀)、流量控制阀(单向节流阀、节流阀)、方向控制阀(调速阀、液控单向阀、两位两通换向阀等)以及复合阀。
    力士乐二通插装阀LC40A40D7X/ R900935732
    力士乐REXROTH二通插装阀
    力士乐REXROTH逻辑元件-定向功能
    力士乐REXROTH插装阀
    力士乐REXROTH二通插装阀,定向功能LC
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    R901250690 LC40B40E7X=
    R900967287 LC50A00D7X/
    R900938020 LC50A00E7X/
    R901120382 LC50A00E7X/B12V
    R901112126 LC50A00E7X/B15V
    R900969811 LC50A00E7X/V
    R901269439 LC50A02D7X/
    R901110231 LC50A02E7X/
    R900938021 LC50A05D7X/
    R901404293 LC50A05D7X/-015
    R900975452 LC50A05D7X/V
    R900938022 LC50A05E7X/
    R900971385 LC50A05E7X/A10
    R900951983 LC50A10D7X/
    R900249022 LC50A10D7X/V
    R900938024 LC50A10E7X/
    R901384059 LC50A10E7X/-004
    R900969693 LC50A10E7X/V
    R900248582 LC50A160D7X/-155
    R900938026 LC50A20D7X/
    R900970203 LC50A20D7X/V
    R900920273 LC50A20E7X/
    R900955409 LC50A20E7X/V
    R900938027 LC50A40D7X/
    R900976341 LC50A40D7X/V
    R900929935 LC50A40E7X/
    R900728669 LC50A40E7X/B80
    R900710125 LC50A40E7X/V
    R901223263 LC50A60E7X/
    R900938029 LC50B00D7X/
    R900956400 LC50B00E7X/
    R900938030 LC50B05D7X/
    R901173185 LC50B05D7X/V
    R978916802 LC50B05D7X/V
    R900938031 LC50B05E7X/
    R900976999 LC50B05E7X/V
    R900942879 LC50B10D7X/
    R901422958 LC50B10D7X/V
    R900938032 LC50B10E7X/
    R901049880 LC50B10E7X/B60
    R900721796 LC50B10E7X/B80
    R900972937 LC50B10E7X/V
    R900938033 LC50B20D7X/
    R900759670 LC50B20D7X/V
    R900929665 LC50B20E7X/
    R901130689 LC50B20E7X/B80
    R900248831 LC50B20E7X/V
    R900938034 LC50B40D7X/
    R900928823 LC50B40E7X/
    R901394414 LC50B40E7X/450
    R901029100 LC50B40E7X/B80
    R900729521 LC50B40E7X/V
    R900716767 LC50A05E7X/V
    R901137263 LC63A00D7X/
    R900973512 LC63A00D7X/-156
    R900934083 LC63A00D7X/B50-112
    R900938054 LC63A00E7X/
    R901120371 LC63A00E7X/B12V
    R901112129 LC63A00E7X/B15V
    R901105435 LC63A00E7X/V
    R901110232 LC63A02E7X/
    R901388607 LC63A02E7X/V
    R900938055 LC63A05D7X/
    R900974891 LC63A05D7X/V
    R900938056 LC63A05E7X/
    R900934082 LC63A05E7X/-054
    R901191336 LC63A05E7X/A10
    R900979798 LC63A05E7X/V
    R900971973 LC63A05E7X/V-054
    R900953112 LC63A10D7X/
    R900979055 LC63A10D7X/V
    R900938057 LC63A10E7X/
    R900969639 LC63A10E7X/V
    R900617418 LC63A160D7X/-155
    R900946745 LC63A20D7X/
    R900938058 LC63A20D7X/
    R900971009 LC63A20D7X/V
    R900928826 LC63A20E7X/
    R900952988 LC63A20E7X/-054
    R900970703 LC63A20E7X/V
    R900938059 LC63A40D7X/
    R900974176 LC63A40D7X/-054
    R900705510 LC63A40D7X/V
    R900933230 LC63A40E7X/
    R900957407 LC63A40E7X/-054
    R900727900 LC63A40E7X/V
    R900971974 LC63A40E7X/V-054
    R901271983 LC63A60E7X/V
    R900938061 LC63B00D7X/
    R901236789 LC63B00D7X/V
    R900938062 LC63B00E7X/
    R901380444 LC63B00E7X/V
    R900247255 LC63B05D7X/
    R978013085 LC63B05D7X/V
    R901320409 LC63B05D7X=/AF-180
    R900938063 LC63B05E7X/
    R901276781 LC63B05E7X/V
    R900960185 LC63B10D7X/
    R901072231 LC63B10D7X/V
    R900947911 LC63B10E7X/
    R900705280 LC63B10E7X/V
    R900960615 LC63B20D7X/
    R901174969 LC63B20D7X/V
    R900938064 LC63B20E7X/
    R900969072 LC63B20E7X/V
    R900938065 LC63B40D7X/
    R901174986 LC63B40D7X/V
    R900929940 LC63B40E7X/
    R900246143 LC63B40E7X/-204
    R901375500 LC63B40E7X/450
    R901301608 LC63B40E7X/MT-104
    R900711883 LC63B40E7X/V
    R901250703 LC63B40E7X=
    R900918158 LC80A00D6X/
    R900570128 LC80A00E6X/
    R900552747 LC80A00E6X/V
    R900554857 LC80A05D6X/
    R900496956 LC80A05D6X/V
    R900569389 LC80A05E6X/
    R900556779 LC80A05E6X/-054
    R900577207 LC80A05E6X/V
    R900759113 LC80A100D6X/-155
    R900534131 LC80A10D6X/
    R900533027 LC80A10E6X/
    R900381223 LC80A10E6X/
    R900905497 LC80A10E6X/-054
    R900960190 LC80A10E6X/V
    R900971613 LC80A10E6X/V-054
    R900968839 LC80A160D6X/-155
    R900527337 LC80A20D6X/
    R901124266 LC80A20D6X/-165
    R901173296 LC80A20D6X/-211
    R901274912 LC80A20D6X/V
    R900520967 LC80A20E6X/
    R900244756 LC80A20E6X/V
    R900547135 LC80A40D6X/
    R900909302 LC80A40D6X/-069
    R900979953 LC80A40D6X/V
    R900506917 LC80A40E6X/
    R900957406 LC80A40E6X/-054
    R900929795 LC80A40E6X/V
    R900971625 LC80A40E6X/V-054
    R901257196 LC80A60D6X/-069
    R900568486 LC80B00D6X/
    R900560360 LC80B00E6X/
    R900468812 LC80B05D6X/
    R900546788 LC80B05E6X/
    R901350938 LC80B05E6X=/AF-180
    R900527918 LC80B10D6X/
    R901347385 LC80B10D6X/V
    R900563206 LC80B10E6X/
    R900525186 LC80B10E6X/V
    R900521513 LC80B20D6X/
    R901108714 LC80B20D6X/V
    R900533784 LC80B20E6X/
    R900525187 LC80B20E6X/V
    R901320411 LC80B20E6X=/AF-180
    R900935903 LC80B40D6X/
    R900924897 LC80B40D6X/V
    R900533785 LC80B40E6X/
    R901301617 LC80B40E6X/MT-104
    R900617469 LC80B40E6X/V
    R983019334 LC16A..D..7X(F.C.NO:830563)COMPLETE
    R983034435 LC16A00D7XIN010
    R983034404 LC16A00E7XIN010
    R983034430 LC16A05D7XIN010
    R983034405 LC16A05E7X.IN010
    R983034436 LC16A10D7XIN010
    R983034462 LC16A10E7X/IN010
    R983034438 LC16A20D7XIN010
    R983034406 LC16A20E7XIN010
    R983034447 LC16A40D7XIN010
    R983040131 LC16A40E7XIN010
    R983034407 LC16B00E7XIN010
    R983034409 LC16B05D7XIN010
    R983034459 LC16B05E7X/IN010
    R983034434 LC16B20E7XIN010
    R983034437 LC25A00D7XIN010
    R983034410 LC25A00E7XIN010
    R983034411 LC25A05D7XIN010
    R983034412 LC25A05E7XIN010
    R983034448 LC25A10D7XIN010
    R983034414 LC25A10E7XIN010
    R983034415 LC25A20D7XIN010
    R983034413 LC25A20E7XIN010
    R983034416 LC25A40D7XIN010
    R983034440 LC25A40E7XIN010
    R983034417 LC25B00E7XIN010
    R983034455 LC25B05E7XIN010
    R983034461 LC25B10E7XIN010
    R983034451 LC25B20D7XIN010
    R983034418 LC25B20E7XIN010
    R983034445 LC25B40D7XIN010
    R983034419 LC25B40E7XIN010
    R987097222 LC25A40D7X/V-004
    R987379431 LC25A5D7X/V-SO47-842
    R978919375 LC25B40E7X/SO43A-1730
    R983034446 LC32A00E7XIN010
    R983034426 LC32A05D7XIN010
    R983034423 LC32A05E7XIN010
    R983034456 LC32A10D7XIN010
    R983034424 LC32A20D7XIN010
    R983034425 LC32A20E7XIN010
    R983034441 LC32A40D7XIN010
    R983034443 LC32A40E7XIN010
    R983034464 LC32B00E7X/IN010
    R983034454 LC32B05D7XIN010
    R983034449 LC32B05E7XIN010
    R983043106 LC32B20D7XIN010
    R983034433 LC32B20E7XIN010
    R983034450 LC32B40D7XIN010
    R983034429 LC32B40E7XIN010
    R978918796 LC40A20D7X/SO43A-1722
    力士乐REXROTH二通插装阀、主动控制LC2A
    R901291357 LC2A016A00D-1X/YQ7G24J61N-004
    R901293142 LC2A016A00D-1X/YQ7G24N-004
    R901419378 LC2A016A00D-1X/YQ7G24Y99F
    R901364036 LC2A016A00D-1X/YQ7G24Y99J61N
    R901298360 LC2A016A00D-1X/Z2Q7G24J61F-003
    R901430065 LC2A016A00E-1X/Z2F
    R901374884 LC2A016A00E-1X/Z2N
    R901326138 LC2A016A40D-1X/UQ7G24F
    R901364606 LC2A016A40D-1X/XF
    R901383323 LC2A016A40D-1X/XQ.Q7G24F
    R901348950 LC2A016A40D-1X/XQ7G24F
    R901301971 LC2A016A40D-1X/YQ7G24F
    R901293145 LC2A016A40D-1X/YQ7G24N-002
    R901399719 LC2A016A40D-1X/YQ7G24X06F
    R901364035 LC2A016A40D-1X/YQ7G24Y99J61N
    R901291316 LC2A016A40D-1X/YQ7G24Y99J61N-002
    R901438543 LC2A016A40D-1X/YQ7Q7G24Y99F
    R901341945 LC2A016A40D-1X/Z1Q6Q9G24F
    R901303991 LC2A016A40D-1X/Z1Q7G24F
    R901329219 LC2A016A40D-1X/Z2F
    R901387371 LC2A016A40D-1X/Z2Q.Q99F
    R901270440 LC2A016A40D-1X/Z2Q7G24F
    R901405433 LC2A016A40D-1X/Z2Q7G24J61F
    R901433522 LC2A016A40D-1X/Z2Q7G24X08Z08S99F
    R901412401 LC2A016A40D-1X/Z2Q7G24X10Z10F
    R901425927 LC2A016A40D-1X/Z2Q7G24X10Z10S99F
    R901404429 LC2A016A40E-1X/XF
    R901387629 LC2A016A40E-1X/XQ7G24J61F
    R901373734 LC2A016A40E-1X/Z1F
    R901419874 LC2A016A40E-1X/Z1Q7G24X30F
    R901436665 LC2A016A40E-1X/Z2F
    R901442512 LC2A016B00D-1X/YY99J61N
    R901442749 LC2A016B00E-1X/YY99J61N
    R901352448 LC2A016B40D-1X/Z2Q7G24F
    R901270451 LC2A016B40E-1X/Z2F
    R901423486 LC2A016B40F-1X/UD08Z99S99F
    R901437441 LC2A016B40F-1X/XQ7G24F
    R901369958 LC2A016B40F-1X/Z2Q.Q7G24F
    R901395950 LC2A016B40F-1X/Z2Q7G24F
    R901383517 LC2A016B40F-1X/Z2Q7G24X08S20F
    R901384564 LC2A016D00D-1X/UF
    R901327007 LC2A016D40D-1X/Z1Q.Q7G24Z99F
    R901442507 LC2A016D40D-1X/Z1Q7G24F
    R901295824 LC2A016D40D-1X/Z1Q7G24N
    R901364410 LC2A016D40D-1X/Z2Q.Q.F
    R901316021 LC2A016D40D-1X/Z2Q.Q7G24F
    R901295916 LC2A016D40D-1X/Z2Q7G24F
    R901294334 LC2A016D40D-1X/Z2Q7G24N
    R901385030 LC2A025A00D-1X/XQ6Q9G24F
    R901307522 LC2A025A00D-1X/YQ7G24J61N-002
    R901366778 LC2A025A00D-1X/YQ7G24Y99J61N
    R901393518 LC2A025A00D-1X/Z2Q7G24F
    R901394408 LC2A025A40D-1X/450Z1Z99N
    R901387398 LC2A025A40D-1X/XF
    R901335062 LC2A025A40D-1X/XQ7G24F
    R901421257 LC2A025A40D-1X/XQ9G24F
    R901334998 LC2A025A40D-1X/YF
    R901301953 LC2A025A40D-1X/YQ7G24F
    R901321366 LC2A025A40D-1X/YQ7G24J61N
    R901322437 LC2A025A40D-1X/YQ7G24N
    R901324609 LC2A025A40D-1X/YQ7G24Y99J61N
    R901311250 LC2A025A40D-1X/Z1Q.Q7G24F
    R901376508 LC2A025A40D-1X/Z1Q6Q9G24F
    R901290343 LC2A025A40D-1X/Z1Q7G24F
    R901292749 LC2A025A40D-1X/Z1Q7Q7G24F
    R901393036 LC2A025A40D-1X/Z1Z99N
    R901336205 LC2A025A40D-1X/Z2F
    R901270187 LC2A025A40D-1X/Z2Q7G24F
    R901353345 LC2A025A40D-1X/Z2Q7G24X10Z10F
    R901425658 LC2A025A40D-1X/Z2Q7G24X10Z10S99F
    R901439246 LC2A025A40D-1X/Z2X10S10F
    R901329714 LC2A025A40E-1X/XQ7G24F
    R901307038 LC2A025A40E-1X/Z1D99Y99S99W99F
    R901425297 LC2A025A40E-1X/Z1F
    R901444466 LC2A025A40E-1X/Z2F
    R901310480 LC2A025A40E-1X/Z2Q7G24F
    R901307523 LC2A025B00D-1X/YQ7G24J61N-002
    R901442510 LC2A025B00D-1X/YY99J61N
    R901442750 LC2A025B00E-1X/YY99J61N
    R901408935 LC2A025B00F-1X/Z2Q7G24J61N-003
    R901353390 LC2A025B40D-1X/Z1Q7G24F
    R901355548 LC2A025B40D-1X/Z2Q7G24X10Z10F
    R901270212 LC2A025B40E-1X/Z2F
    R901397047 LC2A025B40F-1X/450Z1Q7G24Z99N
    R901435467 LC2A025B40F-1X/450Z2Q7G24S12N
    R901407929 LC2A025B40F-1X/UD08Z99S99F
    R901433198 LC2A025B40F-1X/UQ7G24D08Z99S99F
    R901402136 LC2A025B40F-1X/XQ7G24F
    R901416833 LC2A025B40F-1X/YQ7G24F
    R901426246 LC2A025B40F-1X/Z1Q7G24F
    R901409452 LC2A025B40F-1X/Z1Q7G24F12Z99W99F
    R901411004 LC2A025B40F-1X/Z1Q7G24W99F
    R901409077 LC2A025B40F-1X/Z1Q9G24W99F
    R901422296 LC2A025B40F-1X/Z2D99S99F
    R901409450 LC2A025B40F-1X/Z2F
    R901438103 LC2A025B40F-1X/Z2Q7G24D08S99F
    R901359155 LC2A025B40F-1X/Z2Q7G24F
    R901329371 LC2A025D40D-1X/YF
    R901365037 LC2A025D40D-1X/Z1Q.Q7G24W99F
    R901365604 LC2A025D40D-1X/Z1Q.Q7G24W99N
    R901346017 LC2A025D40D-1X/Z1Q7G24F
    R901315286 LC2A025D40D-1X/Z2Q.Q7G24F
    R901294444 LC2A025D40D-1X/Z2Q7G24F
    R901442972 LC2A025D40E-1X/450Z2A100W99N
    R901431330 LC2A025D40E-1X/XN
    R901431327 LC2A025D40E-1X/YN
    R901378345 LC2A032A00D-1X/YQ7G24Y99J61N
    R901291363 LC2A032A00D-1X/YQ7G24Y99J61N-003
    R901291359 LC2A032A00D-1X/YQ7G24Y99J61N-004
    R901399586 LC2A032A00D-1X/YQ7Q7G24F
    R901324216 LC2A032A00D-1X/Z2Q7G24F
    R901375480 LC2A032A40D-1X/450Z1Z99N
    R901315291 LC2A032A40D-1X/XQ7G24F
    R901304294 LC2A032A40D-1X/XQ7G24F-005
    R901332349 LC2A032A40D-1X/YQ7G24F
    R901304296 LC2A032A40D-1X/YQ7G24F-005
    R901378347 LC2A032A40D-1X/YQ7G24Y99J61N
    R901389846 LC2A032A40D-1X/Z1Q6Q9G24F
    R901359419 LC2A032A40D-1X/Z1Q7G24F
    R901409619 LC2A032A40D-1X/Z1Z99N
    R901336206 LC2A032A40D-1X/Z2F
    R901377218 LC2A032A40D-1X/Z2Q7G24D99F
    R901270647 LC2A032A40D-1X/Z2Q7G24F
    R901439861 LC2A032A40D-1X/Z2Q7G24S99F
    R901374886 LC2A032A40D-1X/Z2Q7G24X10Z10F
    R901426074 LC2A032A40D-1X/Z2Q7G24X10Z10S99F
    R901445647 LC2A032A40D-1X/Z2X10Z10F
    R901289095 LC2A032A40E-1X/XF
    R901329264 LC2A032A40E-1X/XQ7G24F
    R901425300 LC2A032A40E-1X/YF
    R901411233 LC2A032A40E-1X/YZ99Y99W99F
    R901373729 LC2A032A40E-1X/Z1F
    R901291403 LC2A032A40E-1X/Z1Q7G24F
    R901385269 LC2A032A40E-1X/Z2F
    R901394153 LC2A032A40E-1X/Z2Q7G24F
    R901358456 LC2A032B40D-1X/XQ7G24F
    R901315293 LC2A032B40D-1X/YQ7G24F
    R901296933 LC2A032B40E-1X/YN
    R901270649 LC2A032B40E-1X/Z2F
    R901423488 LC2A032B40F-1X/UD08Z99S99F
    R901437442 LC2A032B40F-1X/XQ7G24F
    R901427358 LC2A032B40F-1X/YQ7G24F
    R901388504 LC2A032B40F-1X/Z1Q7G24F
    R901411003 LC2A032B40F-1X/Z1Q7G24W99F
    R901428339 LC2A032B40F-1X/Z1Q7G24Z99F
    R901409080 LC2A032B40F-1X/Z1Q9G24W99F
    R901378697 LC2A032B40F-1X/Z2F
    R901359156 LC2A032B40F-1X/Z2Q7G24F
    R901444996 LC2A032B40F-1X/Z2Q7G24W99F
    R901424488 LC2A032B40F-1X/Z2Q7G24Y99W99F
    R901288545 LC2A032D40D-1X/XQ7G24F
    R901434704 LC2A032D40D-1X/Z1Q.Q7G24W99N
    R901346016 LC2A032D40D-1X/Z1Q7G24F
    R901399320 LC2A032D40D-1X/Z2Q7G24F
    R901355931 LC2A032D40E-1X/XN
    R901355933 LC2A032D40E-1X/YN
    R901444081 LC2A032D40E-1X/Z1Q9G24A130Z99W99F
    R901395721 LC2A040A00D-1X/YQ7Q7TG24F
    R901445546 LC2A040A00D-1X/Z2F
    R901298329 LC2A040A00D-1X/Z2Q7G24J61F-003
    R901322467 LC2A040A40D-1X/XQ.Q7G24F
    R901392310 LC2A040A40D-1X/XQ.Q7G24FR10
    R901309076 LC2A040A40D-1X/XQ7G24F
    R901289740 LC2A040A40D-1X/YQ7G24F
    R901374311 LC2A040A40D-1X/YQ7G24Y99F
    R901429130 LC2A040A40D-1X/Z1F
    R901411320 LC2A040A40D-1X/Z1Q.Q7G24Z10F
    R901394516 LC2A040A40D-1X/Z1Q.Q7TG24F
    R901338541 LC2A040A40D-1X/Z1Q7G24F
    R901421666 LC2A040A40D-1X/Z1Q7G24X12Z12F
    R901440669 LC2A040A40D-1X/Z1Q7G24Z99F
    R901336219 LC2A040A40D-1X/Z2F
    R901386805 LC2A040A40D-1X/Z2Q.Q.F
    R901394947 LC2A040A40D-1X/Z2Q.Q7TG24F
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    R901318784 LC2A080A40D-1X/Z1Q7G24N
    二通插装阀是一种较新型的液压控制元件,
    它适用于高压大流量的液压系统中,与普通液阀相比,它有以下优点:
    (1)结构简单、紧凑、工艺性好,流动流阻小;(2)通流能力大,适用于大流量场合;(3)阀芯动作灵敏,响应快;(4)密封性能好,泄漏少;(5)工作可靠,抗污染能力强,寿命长;(6)适用于各种液压介质:如液压油、乳化液、水质;(7)便于实现集成化,能高度集成,适于与数字元件、比例元件及计算机组合使用,实现自动控制;(8)便于实现标准化、系统化、通用化。
    由于二通插装阀具有独特的优点,因此它被广泛应用于重型机械、锻压机械、塑料机械、冶金机械、船舶、工程机械、矿山机械等领域。

    基本结构
    二通插装阀与普通液压阀的功能相同,都是用来控制液压系统工作介质的压力、流量和流动方向的。二通插装阀由插入元件、先导元件、控制盖板和插装块体四部分组成。插入元件主要由阀芯、阀套、弹簧和密封件组成,图1为其示意图。控制盖板上,根据插装阀的不同控制功能,安装有相应的先导控制级元件,以实现对液压系统压力、流量和方向的控制,插装块体则既是嵌入插入元件及安装控制盖板的基础阀体,又是主油路和控制油路的通道体。
    二通插装阀通过不同的盖板和各种先导阀(一般为滑阀)组合,即可构成方向控制阀、压力控制阀和流量控制阀。
    二通插装阀液压系统实例分析
    二通插装阀以其独特的优点以及经济和技术上的明显优势被广泛应用到各个行业。在集成的液压元件中,当通径小于32mm时,可采用叠加
    阀,当通径大于中32mm时,应考虑采用插装阀。在一个液压系统中,可根据需要,液压控制阀全部采用二通插装阀;也可以部分液压控制阀采用滑阀式,另一部分液压控制阀采用二通插装阀,充分发挥两种液压控制阀各自的优点。
    压力机械属于重型机械,主要应用于冶金行业.重型机械制造、化工等行业,如冲压机、锻造机、剪切机、粉末制品压力机、挤压机等。压力机械的动力及控制部分多数采用液压传动,由于液压系统所需的压力高、流量大,故适于用二通插装阀来控制液压系统的压力、流量和流动方向。

    使用二通插装阀的粉末制品液压机液压系统分析
    控制上液压缸的液压阀采用了二通插装阀,
    控制下液压缸的液压阀采用了滑阀。粉末制品液压机与普通液压机有所不同,下缸装有控制活塞高位置的限程机构,调节限程机构,可控制模具中的装料量。下缸带有中心缸,以满足不同制品的工艺要求。
    由于主机各液压缸的大小和速度相差较大,所需流量也有较大差别,液压系统采用压力补偿轴向柱塞变量泵,可以根据负载的大小,自动变换泵输出的流量,以适应不同工作状态压力和流量的不同要求。液压控制阀采用了二通插装阀与滑阀混合使用,以发挥两种控制阀各自的优点。在液压系统中,上缸液压系统需要大流量,使用了二通插装阀,下缸液压系统需要小流量,使用滑阀,以降低成本。

    使用二通插装阀的YA79液压机液压系统分析
    液压机液压系统因其压力高,流量大,液压控制阀适于采用二通插装阀,YA液压机液压系统原理,液压系统的液压控制阀全部采用二通插装阀。系统采用双泵供油,泵1为低压大流量泵,用于上缸和下缸的快速行程;泵2为高压小流量泵,用于系统实现压制及保压。液压系统控制部分包括七个集成块。泵1的调压、安全、卸荷及防止油液倒流由集成块②控制,泵2的调压、安全、卸荷由集成块①控制;上缸运动由集成块⑤和⑥控制;下缸运:动由集成块③和④控制;送料缸由集成块⑦控制。
    由于液压系统控制阀除送料缸液压系统外,其余部分采用了二通插装阀;集成块,使液压系统结构紧凑、简单,便于安装、调试和维护。系统的工作性能得以改善:速度快、稳定性好、响应快、精度高,系统配以计算机控制,可方便地实现自动控制。
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