一、電動葫蘆的組成結構
電動葫蘆結構緊湊(cou),電(dian)(dian)機(ji)軸(zhou)(zhou)線(xian)垂直于卷筒軸(zhou)(zhou)線(xian)的電(dian)(dian)動葫蘆采用(yong)蝸(gua)輪傳動裝置。其(qi)缺點(dian)為:長(chang)度尺(chi)寸(cun)大(da),寬度方面(mian)尺(chi)寸(cun)大(da),結構粗笨,機(ji)械效率(lv)低,加(jia)工較難等。液壓(ya)(ya)系統為雙重控(kong)制,溢流調節閥、磁接(jie)點(dian)壓(ya)(ya)力表均可(ke)對壓(ya)(ya)力進行精確的控(kong)制。電(dian)(dian)器控(kong)制部(bu)門采用(yong)了低電(dian)(dian)壓(ya)(ya)控(kong)制,增加(jia)了支配(pei)系統的安全(quan)性(xing)。
起(qi)重量一(yi)般(ban)為 0.3~80噸,起(qi)升高度為3~30米。由(you)電(dian)(dian)動(dong)機、傳動(dong)機構和(he)卷(juan)筒或(huo)鏈(lian)輪組成(cheng),分為鋼絲繩電(dian)(dian)動(dong)葫(hu)蘆(lu)(lu)和(he)環鏈(lian)電(dian)(dian)動(dong)葫(hu)蘆(lu)(lu)兩種。其中環鏈(lian)電(dian)(dian)動(dong)葫(hu)蘆(lu)(lu)分為進口(kou)和(he)國產兩種;鋼絲繩電(dian)(dian)動(dong)葫(hu)蘆(lu)(lu)分單速(su)提升、雙速(su)提升;微型電(dian)(dian)動(dong)葫(hu)蘆(lu)(lu)、卷(juan)揚機、多功能提升機。
(一)組成結構
減速器、起(qi)升電(dian)機(ji)、運行電(dian)機(ji)、斷火器、電(dian)纜(lan)滑線(xian)、卷筒裝(zhuang)置、吊(diao)鉤(gou)裝(zhuang)置、聯軸器、軟(ruan)纜(lan)電(dian)流引(yin)入(ru)器等(deng)集動力與制動力于一體(ti)。
起重(zhong)量:0.25t-80t
起升高度:3m-30m
工作(zuo)級別(bie):M3,M4
運(yun)行速度(du):20(30)m/min
起升速度(du):8m/min
(二)安裝使用
電動葫蘆一(yi)般安裝(zhuang)在單梁起重(zhong)(zhong)(zhong)機(ji)(ji),橋式起重(zhong)(zhong)(zhong)機(ji)(ji),門式起重(zhong)(zhong)(zhong)機(ji)(ji),懸掛起重(zhong)(zhong)(zhong)機(ji)(ji)上(shang)。稍加改(gai)造,還(huan)可以(yi)作卷揚機(ji)(ji)用。因此,它(ta)是提(ti)高勞(lao)動效率,改(gai)善勞(lao)動條件的必(bi)備機(ji)(ji)械(xie)。
(三)運行條件
環(huan)境溫(wen)度:-20℃~+40℃
工作(zuo)制(zhi)度:中級JC25%
重(zhong)級:JC40%
當中(zhong)級工作制(zhi)度(du)電動(dong)(dong)葫蘆的起(qi)重量降低30%時,即為重級工作制(zhi)度(du)JC40%的電動(dong)(dong)葫蘆。
重級(ji)工作制(zhi)度JC40%的電(dian)動葫蘆是(shi)用(yong)在工作比較繁重,負載經常在額定值或要(yao)求安全系(xi)數較高(gao)的情況下。
電動(dong)葫蘆結(jie)構減(jian)速器:采用三級定軸斜齒輪轉動(dong)機(ji)構,齒輪和齒輪軸用經過熱處理的合金鋼(gang)制(zhi)成,箱體,箱蓋由(you)優質鑄鐵制(zhi)成,裝(zhuang)配嚴密,密封良好。減(jian)速器自成一個部件,裝(zhuang)卸(xie)極為方(fang)便。
控制(zhi)箱(xiang):采(cai)用能在(zai)緊急情況下切斷(duan)主電路,并帶有上下行程保護斷(duan)火限位器的裝(zhuang)置。確保了電動葫蘆的安全運行。電器元件壽命長,使用可靠。
鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng):起重鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng)包括磷化涂(tu)層鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng)、鍍鋅鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng)和(he)不銹(xiu)鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng),執行(xing)現行(xing)國家(jia)標準GB8918-2006重要用途(tu)鋼(gang)絲(si)(si)繩(sheng)(sheng)(sheng),保證了經久耐用。
錐(zhui)形電(dian)動(dong)機(ji)(ji):起(qi)(qi)升(sheng)電(dian)機(ji)(ji)采用較大(da)起(qi)(qi)動(dong)力矩錐(zhui)形轉(zhuan)子制動(dong)異步電(dian)動(dong)機(ji)(ji),無須外加制動(dong)器(qi)。電(dian)機(ji)(ji)負載持續率(lv)為(wei)25%,電(dian)機(ji)(ji)采用B級(ji)或F級(ji)絕緣,電(dian)機(ji)(ji)防護等級(ji)IP44/IP54。
按鈕(niu)開關:手(shou)操(cao)作輕巧靈便,分有(you)繩(sheng)操(cao)縱和無線遙控兩種方式(shi)。
電動(dong)葫蘆的組成部分有:電機、傳動(dong)機構、卷筒和(he)鏈輪(lun)。
以電機和(he)卷筒相互位置不同(tong)大致可分(fen)為四種(zhong)類型:
1、電(dian)機軸(zhou)線垂(chui)直于(yu)卷筒軸(zhou)線的(de)電(dian)動(dong)葫蘆采用(yong)蝸輪(lun)傳動(dong)裝置,寬度方面尺寸大, 結構(gou)笨(ben)重, 機械效率低(di),加工較(jiao)困難,已(yi)沒有(you)廠家(jia)生產這(zhe)種(zhong)結構(gou)型(xing)式(shi)的(de)產品了。
2、電(dian)(dian)動機軸線平(ping)行于卷筒軸線的電(dian)(dian)動葫蘆,其(qi)優點為(wei)高度與(yu)長度尺寸小。其(qi)缺點為(wei)寬度尺寸大(da),分組性、制造與(yu)裝配(pei)復雜(za),軌道轉彎半徑大(da)。
3、電(dian)機裝在(zai)卷筒里面(mian)的電(dian)動(dong)葫蘆,其優點為長度尺寸小(xiao),結構緊湊。其主要缺點為電(dian)機散(san)熱條件差(cha),分組性差(cha),檢查、安裝、維護電(dian)機不便, 供電(dian)裝置復雜。
4、電(dian)機裝在卷筒(tong)外面的電(dian)動葫蘆,其優點為(wei)分組性好(hao)、通用化程度(du)高、改變起升高度(du)容易、安裝檢修方便。其缺點為(wei)長度(du)尺(chi)寸大。
二、電動葫蘆卷筒外罩型號與卷筒尺寸
(一)電動葫蘆卷筒外罩型號
電動葫蘆卷筒(tong)的(de)(de)起重量主流的(de)(de)有5t、1t、2t、3t、5t、10t、16t等(deng),對應的(de)(de)卷筒(tong)外罩的(de)(de)具體型號如(ru)下:
0.5t-6m卷筒(tong)(tong)外(wai)罩、0.5t-9m卷筒(tong)(tong)外(wai)罩、0.5t-12m卷筒(tong)(tong)外(wai)罩、0.5t-18m卷筒(tong)(tong)外(wai)罩;
1t-6m卷(juan)(juan)(juan)筒外(wai)罩(zhao)、1t-9m卷(juan)(juan)(juan)筒外(wai)罩(zhao)、1t-12m卷(juan)(juan)(juan)筒外(wai)罩(zhao)、1t-18m卷(juan)(juan)(juan)筒外(wai)罩(zhao)、1t-24m卷(juan)(juan)(juan)筒外(wai)罩(zhao)、1t-30m卷(juan)(juan)(juan)筒外(wai)罩(zhao);
2t-6m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao)、2t-9m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao)、2t-12m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao)、2t-18m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao)、2t-24m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao)、2t-30m卷(juan)筒(tong)(tong)(tong)外(wai)(wai)罩(zhao)(zhao)(zhao);
3t-6m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao)、3t-9m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao)、3t-12m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao)、3t-18m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao)、3t-24m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao)、3t-30m卷(juan)(juan)(juan)筒(tong)(tong)外(wai)罩(zhao);
5t-6m卷筒外罩(zhao)(zhao)、5t-9m卷筒外罩(zhao)(zhao)、5t-12m卷筒外罩(zhao)(zhao)、5t-18m卷筒外罩(zhao)(zhao)、5t-24m卷筒外罩(zhao)(zhao)、5t-30m卷筒外罩(zhao)(zhao);
10t-9m卷(juan)筒(tong)(tong)外(wai)罩(zhao)(zhao)、10t-12m卷(juan)筒(tong)(tong)外(wai)罩(zhao)(zhao)、10t-18m卷(juan)筒(tong)(tong)外(wai)罩(zhao)(zhao)、10t-24m卷(juan)筒(tong)(tong)外(wai)罩(zhao)(zhao)、10t-30m卷(juan)筒(tong)(tong)外(wai)罩(zhao)(zhao);
16t-9m卷(juan)筒外(wai)(wai)罩(zhao)(zhao)(zhao)、16t-12m卷(juan)筒外(wai)(wai)罩(zhao)(zhao)(zhao)、16t-18m卷(juan)筒外(wai)(wai)罩(zhao)(zhao)(zhao)。
下面(mian)是電動葫蘆卷筒外罩型號(hao)尺寸圖(tu):
(二)電動葫蘆卷筒尺寸