(1)夾軌器:它ta廣guang泛fan應ying用yong於yu各ge類lei露lu天tian軌gui道dao起qi重zhong機ji,其qi工gong作zuo原yuan理li是shi利li用yong夾jia鉗qian夾jia緊jin軌gui道dao頭tou部bu的de兩liang個ge側ce麵mian,通tong過guo結jie合he麵mian的de夾jia緊jin摩mo擦ca力li將jiang起qi重zhong機ji固gu定ding在zai軌gui道dao上shang,使shi起qi重zhong機ji不bu能neng滑hua移yi。夾jia軌gui器qi的de設she計ji要yao求qiu是shi,夾jia軌gui器qi的de夾jia緊jin力li須xu大da於yu起qi重zhong機ji的de滑hua行xing力li,以yi保bao證zheng在zai當dang地di最大風力作用下,起重機保持不動;夾軌鉗的閉合應靠裝置構件自身或彈簧的作用,而不應隻靠動力驅動裝置的驅動作用,以防止在動力供應中斷時,夾軌器不起作用;動力驅動的夾軌動作應滯後於運行機構製動器的動作,以消除起重機製動時可能產生的劇烈顫動。
(2)錨定裝置:它借助插銷或插板裝置、鏈lian條tiao或huo頂ding杆gan將jiang起qi重zhong機ji與yu軌gui道dao基ji礎chu相xiang連lian成cheng一yi體ti,用yong於yu非fei工gong作zuo狀zhuang態tai特te大da風feng暴bao時shi起qi重zhong機ji的de固gu定ding。由you於yu錨mao定ding裝zhuang置zhi隻zhi能neng設she在zai軌gui道dao的de某mou個ge特te定ding位wei置zhi,起qi重zhong機ji要yao運yun行xing到dao該gai位wei置zhi才cai能neng錨mao定ding,它ta不bu適shi於yu緊jin急ji情qing況kuang下xia的de即ji時shi防fang風feng。
(3)鐵鞋:它是一種楔形裝置,使用時將楔形舌尖插入車輪踏麵和軌道頂麵之
間,鐵鞋的斜坡構成對車輪滑動的阻力。
這種兩用夾軌器雖然采用了
電動機,但若電源出了故障,就不能夾緊,而必須改用手輪夾緊,因此,仍屬於
非自動類型的。
它由電動機、圓錐齒輪、螺杆、夾jia鉗qian等deng組zu成cheng。當dang電dian動dong機ji轉zhuan動dong時shi螺luo杆gan帶dai動dong螺luo母mu壓ya縮suo彈dan簧huang,夾jia軌gui器qi夾jia緊jin,並bing通tong過guo電dian氣qi聯lian鎖suo停ting止zhi運yun行xing機ji構gou。寶bao塔ta形xing彈dan簧huang的de作zuo用yong在zai於yu保bao夾jia鉗qian的de持chi力li,以yi防fang鬆song弛chi。如ru若ruo鬆song弛chi夾jia鉗qian,應ying使shi螺luo母mu退tui到dao一yi定ding位wei置zhi,觸chu動dong終zhong點dian限xian位wei開kai關guan後hou,機ji構gou方fang可ke通tong電dian運yun行xing,起qi到dao保bao護hu作zuo用yong。兩liang用yong夾jia軌gui器qi雖sui然ran采cai用yong了le電dian動dong機ji,但dan若ruo電dian源yuan出chu了le故gu障zhang,就jiu不bu能neng夾jia緊jin,而er必bi須xu改gai用yong手shou輪lun夾jia緊jin,因yin此ci,仍reng屬shu自zi動dong類lei型xing的de。這zhe類lei夾jia軌gui器qi在zai安an裝zhuang和he使shi用yong中zhong應ying注zhu意yi下xia列lie事shi項xiang。
①檢查各活動鉸點應無生繡和卡住現象,經常加油潤滑各鉸點。
②電動手動兩用夾軌器安裝時,應選用手輪
1把夾軌器的鉗口夾緊在軌道兩側,檢查下限位開關應
正好打開(否則調整安全尺),調好後再用電動機;在鉗口
夾緊的同時,電動機應斷電(指示燈亮)。如果鉗口已夾緊而電動機未斷電,就可能燒毀電動機;反(fan)之(zhi),若(ruo)鉗(qian)口(kou)未(wei)夾(jia)緊(jin)而(er)電(dian)動(dong)機(ji)提(ti)前(qian)斷(duan)電(dian),則(ze)夾(jia)軌(gui)器(qi)不(bu)起(qi)作(zuo)用(yong),會(hui)造(zao)成(cheng)嚴(yan)重(zhong)事(shi)故(gu)。下(xia)限(xian)位(wei)開(kai)關(guan)調(tiao)好(hao)後(hou),用(yong)手(shou)輪(lun)將(jiang)鉗(qian)口(kou)脫(tuo)開(kai),並(bing)提(ti)到(dao)規(gui)定(ding)高(gao)度(du);再(zai)調(tiao)整(zheng)上(shang)限(xian)位(wei)開(kai)關(guan),使(shi)其(qi)在(zai)這(zhe)個(ge)位(wei)置(zhi)正(zheng)好(hao)打(da)開(kai)。使(shi)用(yong)電(dian)動(dong)夾(jia)軌(gui)器(qi)時(shi),應(ying)經(jing)常(chang)檢(jian)查(zha)電(dian)源(yuan)是(shi)否(fou)有(you)故(gu)障(zhang),如(ru)果(guo)過(guo)多(duo)依(yi)賴(lai)電(dian)動(dong)機(ji)工(gong)作(zuo),有(you)可(ke)能(neng)導(dao)致(zhi)脫(tuo)軌(gui)事(shi)故(gu)。
③注意檢查鉗臂、連杆、鉗口、彈簧等零件,不應有裂紋、變形、破壞等缺陷,否則及時更換。
④經常清除絲杆上麵的粉塵等雜物,防止堵塞影響轉動。
⑤jingchangjianzhaguidaoduantoudelianggecemian,buyingyoupengzhuangbahen,jiaguiqiankazaibahenshanghuishixianweikaiguanshiling,zaochengshaohuidiandongjihuojiabujinguidaodengguzhang。zidongzuoyongdefangfengjiaguidaozidongzuoyongdefangfengjiaguidaoqizaiqizhongjibuyunxinghuoduandianshinengzidongjiajinguidao,zhuyaoleixingyoudanhuangshi、重(zhong)錘(chui)式(shi)和(he)自(zi)鎖(suo)夾(jia)板(ban)式(shi)等(deng)幾(ji)種(zhong)。彈(dan)簧(huang)式(shi)自(zi)動(dong)夾(jia)軌(gui)道(dao)器(qi),它(ta)是(shi)利(li)用(yong)彈(dan)簧(huang)壓(ya)迫(po)連(lian)杆(gan),使(shi)鉗(qian)口(kou)夾(jia)緊(jin)鋼(gang)軌(gui)的(de)。鬆(song)閘(zha)時(shi),開(kai)動(dong)卷(juan)揚(yang)裝(zhuang)置(zhi),通(tong)過(guo)鋼(gang)絲(si)繩(sheng)滑(hua)輪(lun)組(zu)使(shi)彈(dan)簧(huang)壓(ya)縮(suo),帶(dai)動(dong)鉗(qian)臂(bi)脫(tuo)開(kai)軌(gui)道(dao)。這(zhe)種(zhong)夾(jia)軌(gui)器(qi)常(chang)常(chang)同(tong)風(feng)速(su)報(bao)警(jing)器(qi)相(xiang)聯(lian)鎖(suo),當(dang)風(feng)力(li)超(chao)過(guo)規(gui)定(ding)的(de)值(zhi)(一般6級風,沿海7級風)shi,fengsujifachujingbaobingtongguodianqiliansuoqieduanqizhongjidianyuan,jiaguiqizidongdongzuojiajinganggui。zidongzuoyongdefangfengjiafengguiqibuxuyaowaijiedianyuanjikejiajinganggui,anquankekao,dangouzaofuza、體積和自重較大,通常安裝在大型起重機上。
對於在露天工作的起重機,應設置夾軌器、錨(mao)定(ding)裝(zhuang)置(zhi)或(huo)鐵(tie)鞋(xie),而(er)且(qie)必(bi)須(xu)能(neng)獨(du)立(li)承(cheng)受(shou)非(fei)工(gong)作(zuo)狀(zhuang)態(tai)下(xia)最(zui)大(da)風(feng)力(li)時(shi)不(bu)至(zhi)於(yu)被(bei)吹(chui)倒(dao)。夾(jia)軌(gui)器(qi)在(zai)防(fang)風(feng)裝(zhuang)置(zhi)中(zhong)應(ying)用(yong)最(zui)為(wei)廣(guang)泛(fan),可(ke)以(yi)用(yong)於(yu)各(ge)種(zhong)類(lei)型(xing)的(de)起(qi)重(zhong)機(ji)。按(an)控(kong)製(zhi)方(fang)式(shi)可(ke)以(yi)分(fen)為(wei):手動夾軌器、電動夾軌器、手電兩用夾軌器等。
在露天工作的起重機,當風速超過60m/s(相當於10-11級風),bixucaiyongmaoguzhuangzhi。dangfengsuchaoguoguidingzhishi,baqizhongjikaidaosheyoumaoguzhuangzhidediduan,caiyongmaozhuhuomaoganbaqizhongjiyumaodingzhuangzhigudingqilai。fangfengtiexieyefenweishoudonghediandongliangzhong。tajiangtiexiehemaolianmaogugongnengjiehedaoyiqi,tongguoyigezisuogongnengzhuangzhijiangjiaguizhuangzhigudingdaoguidaoshang,yifangzhitiexieheguidaozhijianchanshenghuadong。
1 、夾軌器的防爬作用一般應由其本身構件的重力的自鎖條件或彈簧的作用來實
現,而不應隻靠驅動裝置的作用來實現防爬。
2、起重機運行機構製動器的作用應比防風裝置動作時間略微提前,即防風製動時間——夾軌器動作時間應滯後於運行機構的製動時間,這樣才能消除起重機可能產生的劇烈顫動。
3、防(fang)風(feng)裝(zhuang)置(zhi)應(ying)能(neng)保(bao)證(zheng)起(qi)重(zhong)機(ji)在(zai)非(fei)工(gong)作(zuo)狀(zhuang)態(tai)時(shi),在(zai)風(feng)力(li)作(zuo)用(yong)下(xia)不(bu)被(bei)大(da)風(feng)吹(chui)跑(pao)。在(zai)確(que)定(ding)防(fang)風(feng)裝(zhuang)置(zhi)的(de)防(fang)滑(hua)力(li)時(shi),應(ying)忽(hu)略(lve)製(zhi)動(dong)器(qi)和(he)車(che)輪(lun)輪(lun)緣(yuan)對(dui)鋼(gang)軌(gui)側(ce)麵(mian)附(fu)加(jia)阻(zu)力(li)的(de)影(ying)響(xiang)。
fangfengfanghuaanquanzhuangzhizheshifangzhilutiangongzuodeqizhongjizaidafengzuoyongxiayanguidaofashenghuaxingdeanquanzhuangzhishiwaigongzuodeguidaoshiqizhongjijunyinganzhuang。qianquangongnengshi,dangqizhongjizaoyufeigongzuozhuangtaixiadezuidafeng
力時,起重機不被吹動,防止起重機在軌道端頭傾覆。常見防風裝置有夾軌器、
錨定裝置和鐵鞋。
(1)夾軌器:它ta廣guang泛fan應ying用yong於yu各ge類lei露lu天tian軌gui道dao起qi重zhong機ji,其qi工gong作zuo原yuan理li是shi利li用yong夾jia鉗qian夾jia緊jin軌gui道dao頭tou部bu的de兩liang個ge側ce麵mian,通tong過guo結jie合he麵mian的de夾jia緊jin摩mo擦ca力li將jiang起qi重zhong機ji固gu定ding在zai軌gui道dao上shang,使shi起qi重zhong機ji不bu能neng滑hua移yi。夾jia軌gui器qi的de設she計ji要yao求qiu是shi,夾jia軌gui器qi的de夾jia緊jin力li須xu大da於yu起qi重zhong機ji的de滑hua行xing力li,以yi保bao證zheng在zai當dang地di最大風力作用下,起重機保持不動;夾軌鉗的閉合應靠裝置構件自身或彈簧的作用,而不應隻靠動力驅動裝置的驅動作用,以防止在動力供應中斷時,夾軌器不起作用;動力驅動的夾軌動作應滯後於運行機構製動器的動作,以消除起重機製動時可能產生的劇烈顫動。
(2)錨定裝置:它借助插銷或插板裝置、鏈lian條tiao或huo頂ding杆gan將jiang起qi重zhong機ji與yu軌gui道dao基ji礎chu相xiang連lian成cheng一yi體ti,用yong於yu非fei工gong作zuo狀zhuang態tai特te大da風feng暴bao時shi起qi重zhong機ji的de固gu定ding。由you於yu錨mao定ding裝zhuang置zhi隻zhi能neng設she在zai軌gui道dao的de某mou個ge特te定ding位wei置zhi,起qi重zhong機ji要yao運yun行xing到dao該gai位wei置zhi才cai能neng錨mao定ding,它ta不bu適shi於yu緊jin急ji情qing況kuang下xia的de即ji時shi防fang風feng。
(3)鐵鞋:它是一種楔形裝置,使用時將楔形舌尖插入車輪踏麵和軌道頂麵之
間,鐵鞋的斜坡構成對車輪滑動的阻力。



