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我們來簡單分析吊車鋼絲繩選用要點
Release Date:2022-07-13
  鋼(gang)絲(si)(si)(si)繩(sheng)(sheng)(sheng)在(zai)工(gong)程起重機上使(shi)用(yong)的非常(chang)(chang)普遍,它是由(you)(you)單(dan)根鋼(gang)絲(si)(si)(si)繞(rao)(rao)在(zai)一起形成(cheng)(cheng)股(gu),然后將其(qi)中(zhong)一些股(gu)繞(rao)(rao)成(cheng)(cheng)繩(sheng)(sheng)(sheng)芯,再由(you)(you)其(qi)它股(gu)組成(cheng)(cheng)的外股(gu)圍繞(rao)(rao)繩(sheng)(sheng)(sheng)芯繞(rao)(rao)成(cheng)(cheng)鋼(gang)絲(si)(si)(si)繩(sheng)(sheng)(sheng)。有(you)些進口鋼(gang)絲(si)(si)(si)繩(sheng)(sheng)(sheng)內(nei)部(bu)(bu)還包含一個塑(su)料插(cha)芯,通常(chang)(chang)以塑(su)料涂(tu)層的形式經過特殊(shu)處理覆(fu)蓋在(zai)繩(sheng)(sheng)(sheng)芯上,重要的鋼(gang)絲(si)(si)(si)繩(sheng)(sheng)(sheng)則在(zai)繩(sheng)(sheng)(sheng)內(nei)部(bu)(bu)充填適當的潤滑劑以減少(shao)摩擦(ca)。下面(mian)鋼(gang)絲(si)(si)(si)繩(sheng)(sheng)(sheng)廠家就來和(he)大(da)家簡單(dan)分(fen)析下。

  所(suo)謂不旋(xuan)轉鋼絲(si)繩(sheng)(sheng)是(shi)基(ji)于這樣一個(ge)原理,即繩(sheng)(sheng)與(yu)股(gu)的(de)扭(niu)轉力矩(ju)(ju)方向(xiang)(xiang)相(xiang)(xiang)反(fan)而大小相(xiang)(xiang)等:進口不旋(xuan)轉鋼絲(si)繩(sheng)(sheng)則有(you)所(suo)不同,其原理是(shi)使繩(sheng)(sheng)芯的(de)旋(xuan)向(xiang)(xiang)與(yu)繩(sheng)(sheng)本(ben)身(shen)的(de)旋(xuan)向(xiang)(xiang)相(xiang)(xiang)反(fan),當(dang)受力時,繩(sheng)(sheng)芯產生的(de)扭(niu)矩(ju)(ju)與(yu)外(wai)股(gu)產生的(de)扭(niu)矩(ju)(ju)大小相(xiang)(xiang)等,方向(xiang)(xiang)相(xiang)(xiang)反(fan)。鋼絲(si)繩(sheng)(sheng)的(de)股(gu)還可通過滾(gun)壓(ya)或模具擠壓(ya)等后處理方法成為緊密股(gu),處理后股(gu)的(de)直徑將(jiang)減小,而表面光(guang)潔度很高。


  因此,采用緊(jin)(jin)密股(gu)的(de)鋼(gang)絲繩(sheng)可以(yi)使用較(jiao)(jiao)(jiao)粗的(de)鋼(gang)絲,相同(tong)直(zhi)徑下,采用緊(jin)(jin)密股(gu)的(de)鋼(gang)絲繩(sheng)充填系數(shu)較(jiao)(jiao)(jiao)高,破斷拉力大(da)為提高。當在卷筒上進行多層纏繞時,普通股(gu)的(de)鋼(gang)絲繩(sheng)其外股(gu)在層與層之間(jian)擠壓較(jiao)(jiao)(jiao)嚴重(zhong),鋼(gang)絲繩(sheng)表面磨損(sun)(sun)較(jiao)(jiao)(jiao)快。而緊(jin)(jin)密股(gu)的(de)鋼(gang)絲繩(sheng)則有較(jiao)(jiao)(jiao)高的(de)抗磨損(sun)(sun)能力和抗擠壓能力。

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