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     网站首页         →    新闻中心 >>伸缩臂分


    伸缩臂分为滑移式伸缩臂和套入式伸缩臂。

    套入式伸缩臂它是由固定体与移动体通过伸缩缸的作用使移动体伸出及缩回,从而达到更大的挖掘半径和合理的装车高度;其结构是第一段为固定体,其余的都是移动体,所?#26800;?#31227;动体都装在固定体内,其原理是一段接二段、二段接三段......再通过行程油缸来使其伸出或缩回的形式,只有一个固定体,二个或以上个移动体,行程油缸条数是所?#26800;?#31227;动体减去一。这?#20013;?#24335;的伸缩臂有更大的作业半径,但其结构较复杂、生产成本较高,一般都可以设计成三?#25105;?#19978;,一般用在深坑或高空作业的挖掘机上。

    地铁在施工的过程中要进?#26800;?#19979;的开挖,当地下施工要求达到一定深度时,普通挖掘机的挖掘深度已经无法满足要求,加长臂的挖掘机因臂的长度增加使得斗容变小,速度变慢。目前加长臂的长度只有18米且效率不高,伸缩臂弥补了这些缺陷,最少20米下挖深度,一个工作回合(从抓土到放土入车)约45秒,一个斗能容0.8立方,无论在速度上还是效率上?#21152;?#32477;对的优势,是地铁及人防工程下挖的首选。

     

    伸缩臂分


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