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　　公路护栏打(da)桩(zhuang)机的分类你知道(dao)多少吗？

　　落锤公路打桩机

　　桩(zhuang)锤是一块钢质(zhi)重块，由卷扬机(ji)用吊(diao)钩提升，脱(tuo)钩后沿导向架自由下(xia)落而打桩(zhuang)。

　　汽锤公路打桩机

　　桩(zhuang)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)有(you)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)和(he)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)座(zuo)组成，以(yi)蒸(zheng)汽(qi)或者压缩空气(qi)(qi)为(wei)动(dong)(dong)(dong)力(li)，有(you)单动(dong)(dong)(dong)汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)和(he)双动(dong)(dong)(dong)汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)两种。单动(dong)(dong)(dong)气(qi)(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)以(yi)柱塞或汽(qi)缸(gang)作为(wei)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)，蒸(zheng)汽(qi)驱(qu)动(dong)(dong)(dong)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)上(shang)升，而后任(ren)其沿锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)座(zuo)的导杆下落而打(da)桩(zhuang)。双动(dong)(dong)(dong)汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)一般是有(you)加(jia)重(zhong)(zhong)的柱塞作为(wei)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)，以(yi)汽(qi)缸(gang)作为(wei)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)座(zuo)，蒸(zheng)汽(qi)驱(qu)动(dong)(dong)(dong)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)上(shang)升，在(zai)驱(qu)动(dong)(dong)(dong)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)向(xiang)下冲击(ji)打(da)桩(zhuang)。上(shang)下往复的速度快，频率高，使桩(zhuang)贯入(ru)地层使发(fa)生震动(dong)(dong)(dong)，可以(yi)减(jian)少摩擦阻力(li)，打(da)桩(zhuang)效果好，双向(xiang)不等作用力(li)的差(cha)动(dong)(dong)(dong)汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)，其锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)座(zuo)重(zhong)(zhong)量轻(qing)，有(you)效冲击(ji)重(zhong)(zhong)量可相对增大，性能更好。汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)的进排汽(qi)旋阀(fa)的换向(xiang)可由人工(gong)控制(zhi)，也可由装在(zai)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)一侧并随锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)头(tou)升降的凸缘(yuan)操纵杆自动(dong)(dong)(dong)控制(zhi)，两种方式都可以(yi)调节汽(qi)锤(chui)(chui)(chui)(chui)(chui)(chui)(chui)(chui)的冲击(ji)行程(cheng)。

　　柴油机打桩机

　　主体(ti)也是由汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)和柱(zhu)塞组(zu)成(cheng)，其工作原(yuan)理和单缸(gang)(gang)(gang)(gang)二冲(chong)程柴(chai)油(you)(you)机(ji)相似，利用(yong)喷入汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)燃(ran)烧室内的(de)雾化柴(chai)油(you)(you)受高(gao)压(ya)(ya)高(gao)温(wen)后燃(ran)爆(bao)(bao)所产生的(de)强(qiang)大压(ya)(ya)力驱动锤(chui)(chui)头(tou)工作。柴(chai)油(you)(you)锤(chui)(chui)按其构造形式分导(dao)(dao)杆(gan)式和筒式。导(dao)(dao)杆(gan)式柴(chai)油(you)(you)锤(chui)(chui)以(yi)柱(zhu)塞为锤(chui)(chui)座(zuo)压(ya)(ya)在(zai)桩帽上，以(yi)汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)为锤(chui)(chui)头(tou)沿两(liang)根导(dao)(dao)杆(gan)升(sheng)(sheng)降(jiang)。打(da)桩时(shi)，先将(jiang)桩吊(diao)到(dao)桩架龙(long)门中就位(wei)，再将(jiang)柴(chai)油(you)(you)锤(chui)(chui)搁(ge)在(zai)桩顶，降(jiang)下(xia)(xia)吊(diao)钩(gou)将(jiang)汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)吊(diao)起(qi)，又(you)脱(tuo)开(kai)吊(diao)钩(gou)让汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)下(xia)(xia)落套入柱(zhu)塞，将(jiang)封闭在(zai)汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)内的(de)空(kong)气进(jin)行压(ya)(ya)缩，汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)继续下(xia)(xia)落，直到(dao)缸(gang)(gang)(gang)(gang)体(ti)外的(de)压(ya)(ya)销(xiao)推(tui)压(ya)(ya)锤(chui)(chui)座(zuo)上燃(ran)油(you)(you)泵的(de)摇杆(gan)时(shi)，燃(ran)油(you)(you)泵就将(jiang)油(you)(you)雾喷入缸(gang)(gang)(gang)(gang)内，油(you)(you)雾遇(yu)到(dao)燃(ran)点(dian)以(yi)上的(de)高(gao)温(wen)气体(ti)，当即发生燃(ran)爆(bao)(bao)，爆(bao)(bao)发力向下(xia)(xia)冲(chong)击使(shi)桩下(xia)(xia)沉，向上顶推(tui)，使(shi)汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)回(hui)升(sheng)(sheng)，待汽(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)重新沿导(dao)(dao)杆(gan)坠落时(shi)，又(you)开(kai)始(shi)第二次冲(chong)击循(xun)环。