一、采煤機電纜夾是什么
采煤機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia),也被稱(cheng)為(wei)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia)或電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia)板(ban),是(shi)一種用(yong)于保護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)以(yi)及(ji)水管(guan)的(de)(de)(de)產品。它通(tong)常是(shi)由沖(chong)壓鋼板(ban)做骨架(jia),以(yi)改性塑(su)料(liao)(liao)(如聚乙(yi)烯)為(wei)材料(liao)(liao),通(tong)過注塑(su)加工制成。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia)的(de)(de)(de)主要作用(yong)是(shi)保護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)或水管(guan)免受(shou)在工作面拖曳過程中(zhong)受(shou)到的(de)(de)(de)磨(mo)損、擠壓或其他形式的(de)(de)(de)損傷。這種保護(hu)(hu)通(tong)道(dao)可以(yi)通(tong)過專用(yong)螺栓與采煤(mei)(mei)機的(de)(de)(de)其他部(bu)件相(xiang)(xiang)連,形成一個完(wan)整的(de)(de)(de)拖纜(lan)(lan)(lan)系統(tong)。相(xiang)(xiang)比(bi)于傳統(tong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia),采煤(mei)(mei)機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)夾(jia)能(neng)(neng)夠更有(you)效地(di)應對電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)在運行過程中(zhong)可能(neng)(neng)遇到的(de)(de)(de)各種損傷,從(cong)而全方(fang)位地(di)保護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)及(ji)其附(fu)屬設備
二、采煤機電纜夾型號有哪些
采煤機的電纜夾(jia)有LJU型(xing)、LJC型(xing)、LJO型(xing)、LJH型(xing)四種型(xing)號,共(gong)18個規格。電纜夾(jia)的幾何尺(chi)寸(cun)(cun)應符合(he)規定(ding),孔徑(jing)公差(cha)為H13(GB/T1800.4-1999),孔距極限偏差(cha)為GB/T1804-f級(GB/T1804-1992),H、A的尺(chi)寸(cun)(cun)公差(cha)為MT4級(GB/T14486-2008),其(qi)余尺(chi)寸(cun)(cun)公差(cha)按未注尺(chi)寸(cun)(cun)公差(cha)MT5級(GB/T14486-2008)制造。
三、采煤機電纜夾有哪些要求
1、外觀
采煤機電(dian)(dian)纜(lan)夾(jia)表面(mian)應光滑、平(ping)整,用非金屬材料覆蓋的表面(mian)不得暴露鋼板。電(dian)(dian)纜(lan)夾(jia)串(chuan)聯后應轉動靈(ling)活、折彎(wan)自如,折彎(wan)角應符合技術圖紙要求。
2、抗拉強度
采煤機電(dian)纜夾(jia)按MT/T117-2007中的7.4規(gui)定試驗時,其抗拉強(qiang)度應達到表2的工作(zuo)載荷,保持2min,卸載檢查應無殘余變形、開裂(lie)、脫落(luo)。
3、最大拉斷力
采煤機電纜夾(jia)按(an)MT/T117-2007中的7.5規定試(shi)驗時,其最大拉斷力應不小于表2的規定。
4、抗沖擊
采煤機電纜夾按(an)MT/T117-2007中的(de)7.6規(gui)(gui)定試驗時,應能承受符合表2規(gui)(gui)定的(de)抗砸沖擊(ji)能量,承受沖擊(ji)后(hou)的(de)電纜夾板不應破(po)裂。