起重機折疊副臂結構改進原因及措施介紹

起重機副臂一般由兩節臂組成
，一節為析架結構
，一節為箱形結構。臂與臂靠銷軸連接
，整個副臂的總質一般都超過1.5t
，由固定在吊份一側的副臂支架支撐。目前常用的副臂支架形式多為三點支撐結構，即有前
、中
、housangezhijiazhichengfubi
，fubiqianduanyouqianzhijiachudechangzhouyudiaobilianjie，zhongbukaozhongzhijiatuofenfubixiamiandegunlun
，houbuyouhouzhijiazhichengzaifubidegunlunshang。

由you於yu副fu臂bi質zhi較jiao大da，在zai打da開kai或huo回hui收shou的de過guo程cheng中zhong常chang出chu現xian問wen題ti，主zhu要yao有you插cha拔ba前qian支zhi架jia的de長chang軸zhou比bi較jiao困kun難nan吊diao竹zhu臂bi頭tou鉸jiao點dian上shang下xia兩liang孔kong與yu副fu臂bi鉸jiao點dian上shang下xia兩liang孔kong不bu重zhong合he
，致zhi使shi插cha拔ba銷xiao軸zhou困kun難nan推tui拉la副fu臂bi很hen費fei力li。造zao成cheng副fu臂bi安an裝zhuang困kun難nan的de原yuan因yin主zhu要yao有you三san一yi是shi支zhi承cheng副fu臂bi的de三san個ge支zhi架jia受shou力li分fen配pei不bu協xie調tiao。中zhong支zhi架jia因yin承cheng受shou大da部bu分fen力li而er變bian形xing較jiao大da，使shi副fu臂bi傾qing斜xie，在zai長chang軸zhou上shang產chan生sheng彎wan矩ju，導dao致zhi長chang軸zhou及ji銷xiao軸zhou難nan插cha拔ba二er是shi創chuang份fen前qian支zhi架jia結jie構gou型xing式shi不bu合he理li，副fu仲zhong前qian端duan靠kao前qian支zhi架jia的de長chang軸zhou與yu吊diao臂bi連lian接jie見jian圖tu
，中zhong部bu靠kao副fu嘴zui下xia麵mian的de滾gun輪lun支zhi承cheng在zai中zhong支zhi架jia上shang，可ke認ren為wei副fu份fen是shi靠kao前qian端duan和he中zhong部bu兩liang點dian支zhi撐cheng的de，一yi旦dan中zhong支zhi架jia受shou力li變bian形xing，副fu胃wei就jiu會hui向xiang外wai傾qing斜xie
，從cong而er產chan生sheng彎wan矩ju，長chang軸zhou受shou力li導dao致zhi其qi插cha拔ba困kun難nan三san是shi副fu臂bi前qian支zhi架jia位wei安an排pai不bu當dang。由you於yu前qian支zhi架jia位wei安an排pai過guo於yu靠kao前qian
，打da開kai副fu臂bi時shi其qi重zhong心xin離li中zhong支zhi架jia根gen部bu的de距ju離li較jiao大da，使shi副fu竹zhu分fen配pei到dao中zhong支zhi架jia的de力li對dui其qi根gen部bu形xing成cheng的de彎wan矩ju很hen大da，造zao成cheng中zhong支zhi架jia撓nao度du很hen大da。

fubigaijindecuoshishijiangfubiqianzhijiaweilixiangdiaozhuhoubuyidong，zheyangjiukeyijianxiaodakaifubishiyudiaobidejiajiao
，congerjianxiaozhongzhijiasuochengshoudewanju。gaijinfubiqianzhijiadejiegoujiantu，jiangyuanlaidechangzhouzhichenggaiweituojiachengshoufubizhong，bingjiangqituoping
，zaijiangchangzhougaiweiduanzhou，rucijiukeshifuzhuyudiaobidejiaodiankongduiqi
，nengshunlichabafuzhuyudiaobidelianjiexiaozhou。shidangjiaqiangfuzhuzhongzhijia，tigaoqiqiangdujigangdu。gaijinhou，xiaoguoxianzhu。fubianzhuangbiandeshifenrongyixiaolvdedaodafudutigaoshiyongshi，yuanlaidakaihuishoufubixuyao4h，現在不足1h即可，而且大大降低了勞動強度。