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金屬頂梁介紹
    金屬(shu)頂(ding)(ding)梁(liang)(liang)(liang)(liang)是用(yong)于煤(mei)(mei)礦采煤(mei)(mei)工(gong)(gong)作(zuo)(zuo)面(mian)(mian)(mian)、位于單體(ti)液壓支(zhi)(zhi)柱(zhu)之上頂(ding)(ding)板之下、傳(chuan)遞頂(ding)(ding)板壓力(li)的(de)支(zhi)(zhi)撐梁(liang)(liang)(liang)(liang)。是煤(mei)(mei)礦采煤(mei)(mei)工(gong)(gong)作(zuo)(zuo)面(mian)(mian)(mian)支(zhi)(zhi)護項板用(yong)的(de)頂(ding)(ding)梁(liang)(liang)(liang)(liang)。按連接(jie)(jie)方式(shi)金屬(shu)頂(ding)(ding)梁(liang)(liang)(liang)(liang)可分為鉸接(jie)(jie)頂(ding)(ding)梁(liang)(liang)(liang)(liang)和非(fei)鉸接(jie)(jie)頂(ding)(ding)梁(liang)(liang)(liang)(liang)兩(liang)種(zhong)(zhong)。按頂(ding)(ding)梁(liang)(liang)(liang)(liang)梁(liang)(liang)(liang)(liang)體(ti)截面(mian)(mian)(mian)形狀金屬(shu)頂(ding)(ding)梁(liang)(liang)(liang)(liang)可分為A型(xing)(xing)、B型(xing)(xing)、C型(xing)(xing)、D型(xing)(xing)頂(ding)(ding)梁(liang)(liang)(liang)(liang)四種(zhong)(zhong)。金屬(shu)頂(ding)(ding)梁(liang)(liang)(liang)(liang)可與(yu)各種(zhong)(zhong)類型(xing)(xing)單體(ti)金屬(shu)支(zhi)(zhi)柱(zhu)配合(he)組(zu)成金屬(shu)支(zhi)(zhi)架，供煤(mei)(mei)礦在水平及緩(huan)傾(qing)斜(xie)回采工(gong)(gong)作(zuo)(zuo)面(mian)(mian)(mian)支(zhi)(zhi)護的(de)一種(zhong)(zhong)高強度頂(ding)(ding)梁(liang)(liang)(liang)(liang)由于這種(zhong)(zhong)頂(ding)(ding)梁(liang)(liang)(liang)(liang)能懸壁(bi)支(zhi)(zhi)護工(gong)(gong)作(zuo)(zuo)面(mian)(mian)(mian)，煤(mei)(mei)壁(bi)面(mian)(mian)(mian)前(qian)邊的(de)運輸機道上面(mian)(mian)(mian)的(de)頂(ding)(ding)板，使煤(mei)(mei)壁(bi)與(yu)支(zhi)(zhi)柱(zhu)間有較(jiao)大的(de)支(zhi)(zhi)護空(kong)間。