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威斯特传感器仪表有限公司 2018-10-16
文档简介首先,我给您介绍一下REXROTH气控阀常见的型号:R480058830R480060006R480059075R480060007R480060008R480060009R480060010R480060011R480060012R480060013R480060018R480059528R480060019R480060020R480060021R480059526R480060022R480060023R480060024R480059529R480060025R480060026R480060027R480060028R480060029R480060030R480060031R480060032R480060033R480060034R480058941R480060035R480060036R480058890R480060037R480060038R480060039R480060040R480060041R480060042R480060043R480060044R480060045R480060060R480060061R480060063R480060064R480059699R480060065R480059532R480060066R480060067R480060068R480060069R480060070R480060071R480060072R480060073R480060074R480060075R480060076R480058909R480060077R480060078R480060079R480060080R480060081R480060082R480060083R480060084R480060085R480060086R480060087R480060088R480060089R480060090R4800600911316102100131610405013161041001316104150131610420013161063005217505000521751500052175250005217535000521754500052175050105217515010521752501052175350105217545010521750502052175150205217525020521753502052175450205217505030521751503052175250305217535030521754503052175050405217515040521752504052175350405217545040521750505052175150505217525050521753505052175450505217505060521751506052175250605217535060521754506052175050705217515070521752507052175350705217545070有些客户可能觉得有些REXROTH气控阀的型号很熟悉,那么下面我们就来详细介绍一下REXROTH气控阀的工作原理,希望可以帮助您在实践中更好的使用REXROTH气控阀。BOSCHREXROTH力士乐气控阀是往复活塞式压缩机中的重要部件,也是易损坏的部件之一。它的好坏直接影响压缩机的排气量、功率消耗及运转的可靠性,目前压缩机正向高速方向发展,而限制转速提高的关键问题之一就是气阀。活塞式压缩机一般都采用“自动阀”,就是气阀的开启与关闭是依靠阀片两边的压力差实现的,没有其它的驱动机构。BOSCH气控阀的结构与吸气阀基本相同,两者仅是阀座与升程限制器的位置互换,吸气阀升程限制器靠近气缸里侧,排气阀则是阀座靠近气缸里侧。环状阀因其阀片为薄圆环而得名阀座与升程限制器上都有环形或孔形通道,供气体通过。阀片与阀座上的密封口贴合形成密封。升程限制器上有导向凸台,对阀片升降起导向作用。BOSCHREXROTH力士乐气控阀的弹簧过软或者由于胶着等原因,使气阀延迟关闭,冲击力特别大,气阀易损坏。为了提高寿命需要加大弹簧力,但弹簧力过大也不太合适,因为此时不但会加大气流通过气阀的阻力损失,而且还因气阀两边的压力差不足以克服弹簧力,使阀片不能一直贴合在升程限制器上而产生振荡造成总的阻力损失增加。因此为克服这一矛盾的影响,选用变刚性弹簧是比较理想的,即弹簧力在气阀刚开启阶段较软,以后迅速变硬,以减少气阀对升程限制器的冲击;关闭时,开始很迅速,后来弹簧力迅速变小,可以减少对阀座的冲击。升程h大时,冲击力大。因此升程不宜取得过高。但升程过小,气阀阻力会增加。因此,在兼顾不致使气阀阻力过大的情况下,力求升程值小些。如果您有需要REXROTH力士乐气控阀,欢迎来电咨询采购。
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