一、采煤機電纜夾是什么
采煤機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾,也被稱為電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾或(huo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾板,是一(yi)種(zhong)(zhong)用于(yu)保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)以及水管(guan)的(de)產品。它通(tong)(tong)(tong)常是由沖壓(ya)鋼板做骨架,以改性(xing)塑料(如聚乙(yi)烯)為材料,通(tong)(tong)(tong)過(guo)注塑加(jia)工制成。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾的(de)主要作用是保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)或(huo)水管(guan)免(mian)受在(zai)工作面拖曳過(guo)程中受到(dao)的(de)磨損(sun)、擠(ji)壓(ya)或(huo)其他形式(shi)的(de)損(sun)傷。這種(zhong)(zhong)保(bao)護(hu)通(tong)(tong)(tong)道可以通(tong)(tong)(tong)過(guo)專用螺栓與采(cai)煤機的(de)其他部件相(xiang)(xiang)連,形成一(yi)個完整的(de)拖纜(lan)(lan)(lan)系統。相(xiang)(xiang)比(bi)于(yu)傳統的(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾,采(cai)煤機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾能(neng)夠更(geng)有效地應(ying)對電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)在(zai)運行(xing)過(guo)程中可能(neng)遇(yu)到(dao)的(de)各種(zhong)(zhong)損(sun)傷,從而全方(fang)位地保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)及其附屬設(she)備
二、采煤機電纜夾型號有哪些
采煤機的電纜(lan)夾有LJU型(xing)、LJC型(xing)、LJO型(xing)、LJH型(xing)四種型(xing)號,共18個規格。電纜(lan)夾的幾何尺寸(cun)應符(fu)合規定,孔徑公差(cha)(cha)為(wei)H13(GB/T1800.4-1999),孔距極(ji)限偏差(cha)(cha)為(wei)GB/T1804-f級(ji)(ji)(ji)(GB/T1804-1992),H、A的尺寸(cun)公差(cha)(cha)為(wei)MT4級(ji)(ji)(ji)(GB/T14486-2008),其余尺寸(cun)公差(cha)(cha)按未注尺寸(cun)公差(cha)(cha)MT5級(ji)(ji)(ji)(GB/T14486-2008)制造。
三、采煤機電纜夾有哪些要求
1、外觀
采煤(mei)機電(dian)纜夾表(biao)(biao)面應(ying)光(guang)滑、平(ping)整,用非金屬(shu)材料(liao)覆蓋(gai)的表(biao)(biao)面不得暴露鋼板。電(dian)纜夾串聯后應(ying)轉動靈活、折彎自如,折彎角應(ying)符合技術(shu)圖紙要求(qiu)。
2、抗拉強度
采煤機電(dian)纜夾按MT/T117-2007中的(de)7.4規定試驗(yan)時,其抗(kang)拉強度應(ying)達到表2的(de)工(gong)作(zuo)載(zai)荷,保持2min,卸載(zai)檢查(cha)應(ying)無(wu)殘余變形、開裂(lie)、脫落。
3、最大拉斷力
采煤機電纜夾按MT/T117-2007中的7.5規定試驗時,其最大拉斷(duan)力應不小于(yu)表2的規定。
4、抗沖擊
采(cai)煤機電(dian)纜(lan)夾(jia)按MT/T117-2007中的7.6規(gui)定(ding)試驗時,應能(neng)承受(shou)符合表(biao)2規(gui)定(ding)的抗砸沖擊能(neng)量,承受(shou)沖擊后的電(dian)纜(lan)夾(jia)板不應破裂。