一、扳手是干什么用的
扳(ban)手(shou)是一種常用(yong)(yong)的(de)安裝(zhuang)與拆卸工(gong)具,是利用(yong)(yong)杠(gang)桿原(yuan)理擰(ning)轉螺(luo)(luo)栓、螺(luo)(luo)釘、螺(luo)(luo)母(mu)和其他(ta)螺(luo)(luo)紋緊持螺(luo)(luo)栓或(huo)螺(luo)(luo)母(mu)的(de)開口或(huo)套孔(kong)固件的(de)手(shou)工(gong)工(gong)具。扳(ban)手(shou)通常用(yong)(yong)碳(tan)素或(huo)合金材料的(de)結構鋼制造。
二、扳手種類有哪些
1、呆(dai)(dai)扳手:呆(dai)(dai)扳手是一種(zhong)通用工具,一端或兩端制有固定尺(chi)寸的開口,主要用于(yu)擰轉(zhuan)一定尺(chi)寸的螺母或螺栓。
2、梅(mei)花扳(ban)(ban)手(shou):梅(mei)花扳(ban)(ban)手(shou)兩端具有帶六角(jiao)(jiao)孔或十二(er)角(jiao)(jiao)孔的(de)工作端,適用(yong)于(yu)工作空間狹(xia)小,不(bu)能(neng)使用(yong)普通(tong)扳(ban)(ban)手(shou)的(de)場(chang)合
3、兩用扳(ban)手:兩用扳(ban)手一端(duan)(duan)與單頭呆扳(ban)手相(xiang)(xiang)同(tong),另一端(duan)(duan)與梅花扳(ban)手相(xiang)(xiang)同(tong),兩端(duan)(duan)擰轉相(xiang)(xiang)同(tong)規格的螺(luo)栓(shuan)或螺(luo)母。
4、活動扳(ban)手(shou):活動扳(ban)手(shou)簡稱活扳(ban)手(shou),其開口寬度可在一(yi)定范圍內(nei)調節,是用來緊固和(he)起(qi)松不同規格的螺(luo)母(mu)和(he)螺(luo)栓的一(yi)種工具。
5、鉤形扳手:鉤形扳手又稱月牙形扳手,主要用于擰轉厚度受限制的扁螺母。這類扳手品牌產品比(bi)較少見,在汽(qi)車(che)修理(li)上(shang)用的比(bi)較多。
6、套(tao)筒(tong)扳手:套(tao)筒(tong)扳手由多個帶六角(jiao)孔或十二角(jiao)孔的套(tao)筒(tong)構成,并配有手柄、接桿(gan)等(deng)多種(zhong)附件。
7、內六(liu)角(jiao)扳手:內六(liu)角(jiao)扳手是成L形的(de)(de)六(liu)角(jiao)棒狀(zhuang)扳手,專用(yong)于擰(ning)轉內六(liu)角(jiao)螺釘,在拆卸機(ji)(ji)床、車輛(liang)、機(ji)(ji)械設備上用(yong)的(de)(de)比(bi)較多(duo)。
8、扭力扳手(shou):扭力扳手(shou)又叫扭矩(ju)扳手(shou)、扭力扳手(shou)、扭矩(ju)可調(diao)扳手(shou),可以設定(ding)扭矩(ju),并(bing)且(qie)扭矩(ju)可調(diao),主要用于緊固(gu)螺栓。
9、電動(dong)扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou):電動(dong)扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)是以(yi)電源或電池為動(dong)力的扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou),主要分為沖擊扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、扭剪扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、定扭矩扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、轉角(jiao)扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、角(jiao)向扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、液(ye)壓(ya)扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、扭力扳(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)等(deng)類型。
三、各類扳手的選用原則是什么
在拆(chai)卸螺栓(shuan)時,應(ying)按照“先套筒扳手(shou)、后(hou)梅(mei)花扳手(shou)、再開口扳手(shou)、最(zui)后(hou)活動(dong)扳手(shou)”的選用原則進行(xing)選取。在選用扳手(shou)時,要注意扳手(shou)的尺寸(cun),尺寸(cun)是指它所能擰(ning)動(dong)的螺栓(shuan)或螺母正對面間的距離(li)。