塔吊有哪些保险装置？--qsf999的安全生产小屋

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塔吊有哪些保险装置？ | 2012-4-16 10:23:00

塔吊有哪些保险装置？

    塔吊有两种保险装置：
    （1）吊钩保险装置：防止在吊钩上的吊索，由吊钩上自动滑脱的保险装置。即在钩头开口处安装一压紧弹簧片，将开口封闭，此弹簧片只能往下压开，放人吊索后不能向上翻出，可防止吊索自动脱落。
    （2）卷筒保险装置：防止钢丝绳因缠绕不当越出卷筒之外造成事故的有效措施。其作法不一，主要是在卷筒外焊接一个钢筋笼罩，限制钢丝绳只能在卷筒范围内移动。
    （2）固定式基础：挖坑槽深为600mm，在灰土上浇混凝土，表面平整，有防水和接地保护措施。

By:qsf999 | 阅读全文 | 回复(13) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2016-10-22 23:26:44

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Re:在漫画中识别身边的违章 | 2016-10-22 18:51:55

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Re:在漫画中识别身边的违章 | 2016-10-21 21:10:15

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Re:在漫画中识别身边的违章 | 2016-10-21 4:20:04

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By:hfuyc(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-20 19:29:58

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Re:在漫画中识别身边的违章 | 2016-10-19 14:23:49

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Re:在漫画中识别身边的违章 | 2016-10-16 23:17:06

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原创 | 2016-9-30 15:50:16

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原创 | 2016-9-28 21:07:14

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原创 | 2016-9-6 21:32:58

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Re:谐波、谐振的危害及防治措施 | 2012-4-17 9:47:23

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