液压系统的平衡阀的开启压力,结构图纸。
希望大家帮助我。防止重物下落的那种平衡阀?
推荐回答(5个)
根据你的提问,给你两个解释
1:平衡阀有两种,一种就是楼上说的那种 单向顺序阀,这种阀的保压效果一般,用在精度要求不高的场合是可以的,国产的品牌有很多,价格也相对便宜。面积比有1;4,1;5,1;8,1;10等。我们一般使用1:5的效果较好,面积比太大的油缸动作时会产生抖动。
2:还有一种真正意义上的平衡阀,就是滑阀式的,这种保压最好,泄流量非常小,代表作品有力士乐系列。
具体看你是用在什么上面了,个人觉得只要是在工业液压或者冶金行业上面使用就选第一种就可以了,这种阀还可以调节压力大小比较方便。如果是精密制造比如机床最好的选择后者,还有在大负载情况下最好选择后者。
平衡阀说白了就是带单向阀的溢流阀。
防止重物下落可以用锁阀或是液控单项。很多阀组合都能起到你说的作用
单向平衡阀是指一个平衡阀和一个单向阀并联,
正向的时候过平衡阀,反方向的时候平衡阀不通,油液从单向阀走。
双向平衡阀是指两个平衡阀并联,正反向都通过平衡阀的调节。
平衡阀你可以理解为顺序阀,主要作用是产生背压,防止负载因自重下落,使运动平稳。在有垂直负载的时候用的很多。
平衡阀的开启压力比有1:3 ,1:4等等
向你这种直接要图纸是不可能的,想山寨也特直接了吧。
最简单的,你弄个大单向阀,弹簧硬点。一样起到平衡作用。
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