塔機主要組成部分相關要求

1、塔式起重機回轉支座。回轉支座一般由回轉平台、回轉支座組成。其中，回轉支座為具有較大滾道直徑、座圈斷麵相對較小、回轉速度較低，可以承受較大的傾翻力矩和軸向力、徑jing向xiang力li的de大da型xing帶dai齒chi滾gun動dong軸zhou承cheng。通tong常chang由you高gao強qiang度du螺luo栓shuan與yu回hui轉zhuan固gu定ding部bu分fen分fen別bie連lian接jie。因yin螺luo栓shuan本ben身shen承cheng受shou軸zhou向xiang載zai荷he較jiao大da，且qie為wei交jiao變bian載zai荷he
，為wei了le保bao證zheng連lian接jie可ke靠kao，要yao在zai安an裝zhuang時shi施shi加jia一yi定ding的de預yu緊jin力li。

2、塔(ta)式(shi)起(qi)重(zhong)機(ji)塔(ta)頂(ding)。塔(ta)頂(ding)的(de)型(xing)式(shi)一(yi)般(ban)可(ke)分(fen)為(wei)剛(gang)性(xing)的(de)和(he)可(ke)擺(bai)動(dong)的(de)兩(liang)種(zhong)，主(zhu)要(yao)作(zuo)用(yong)是(shi)支(zhi)承(cheng)吊(diao)臂(bi)。對(dui)上(shang)回(hui)轉(zhuan)的(de)塔(ta)式(shi)起(qi)重(zhong)機(ji)，剛(gang)性(xing)塔(ta)頂(ding)還(hai)起(qi)支(zhi)承(cheng)平(ping)衡(heng)臂(bi)的(de)作(zuo)用(yong)。在(zai)剛(gang)性(xing)塔(ta)頂(ding)中(zhong)多(duo)采(cai)用(yong)空(kong)間(jian)桁(heng)梁(liang)；而(er)由(you)撐(cheng)杆(gan)組(zu)合(he)成(cheng)人(ren)字(zi)形(xing)架(jia)塔(ta)頂(ding)
，適(shi)用(yong)於(yu)動(dong)壁(bi)式(shi)塔(ta)式(shi)起(qi)重(zhong)機(ji)。可(ke)擺(bai)動(dong)塔(ta)頂(ding)，不(bu)僅(jin)降(jiang)低(di)了(le)安(an)裝(zhuang)高(gao)度(du)，而(er)且(qie)方(fang)便(bian)吊(diao)臂(bi)和(he)平(ping)衡(heng)臂(bi)架(jia)設(she)，特(te)別(bie)對(dui)下(xia)回(hui)轉(zhuan)的(de)快(kuai)速(su)安(an)裝(zhuang)起(qi)重(zhong)機(ji)幾(ji)乎(hu)普(pu)遍(bian)使(shi)用(yong)擺(bai)動(dong)塔(ta)頂(ding)。

塔頂結構集中了由吊臂和平衡臂傳來的載荷，再傳遞給回轉支座、塔身。因此，不僅要考慮安裝方便，還應保證其強度
、剛gang度du和he穩wen定ding性xing要yao求qiu。對dui可ke擺bai動dong的de支zhi架jia塔ta頂ding

，同tong時shi要yao符fu合he安an裝zhuang過guo程cheng中zhong幾ji何he運yun動dong要yao求qiu，避bi免mian運yun動dong自zi鎖suo和he幹gan涉she。塔ta頂ding上shang海hai安an裝zhuang有you鋼gang絲si繩sheng導dao向xiang滑hua輪lun、起重力矩限製器、吊臂拉杆以及安裝滑輪組等。

3、tashiqizhongjipinghengbi。zaipinghengbishangfangzhipeizhong，shiqichanshenghouqinglijuyibianzaigongzuozhuangtaijianshaoyoudiaozhongyinqideqianqingliju，zaifeigongzuozhuangtaiyijianshaoqiangfengyinqideqianqingliju，bingbaozhengqikangqingfanwendingxing。pinghengbishangkefangzhiqishenghuobianfujigou，haikeyianzhuangfengfanbiaozhi
，tiaojienifengmianji，baozhengfeigongzuozhuangtaixiaweichuifengyijianshaoqingfanliju。zaicaiyongkebaidongtadingchengganshi，pinghengbihaiyaoduitadingzhichengganqizhichizuoyong
，zaicaiyonggudingtadingshi
，pinghengbizeshikaotadinglaizhichide。