一、手動扳手是什么

手動扳手又被稱為扳手，是一種常用的機械工具，通常由一把手柄和一組可旋轉的螺口組成。手動扳手一般用于擰緊和松開螺絲和螺母，比較適合小型和中等型的機械作業。手動扳(ban)手有(you)許多(duo)不(bu)(bu)同(tong)(tong)的(de)種類和尺(chi)寸，不(bu)(bu)同(tong)(tong)的(de)手動扳(ban)手適用于不(bu)(bu)同(tong)(tong)的(de)螺(luo)絲和螺(luo)母，需要(yao)選擇(ze)合(he)適的(de)扳(ban)手來完成工作。

二、手動扳手的種類有哪些

手(shou)(shou)(shou)(shou)(shou)動扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)又叫普通扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)，主(zhu)要分(fen)為(wei)單頭呆扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、雙(shuang)頭呆扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、活動扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、梅(mei)花(hua)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、多用扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、敲(qiao)擊扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、套(tao)筒(tong)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、套(tao)筒(tong)起子、扭(niu)力(li)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、扭(niu)矩(ju)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、十(shi)字(zi)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、棘輪扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、鉤形(xing)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、內六(liu)角扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、內四方扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、手(shou)(shou)(shou)(shou)(shou)動離合式扭(niu)矩(ju)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、管(guan)子扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、T型(xing)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、L型(xing)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、三叉扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、月(yue)牙(ya)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、油管(guan)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、輪胎扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、火花(hua)塞扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、濾清器扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、組合扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、其他扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)等。扭(niu)矩(ju)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)分(fen)為(wei)訊響(xiang)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、指針扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)、數顯(xian)扳(ban)(ban)(ban)(ban)手(shou)(shou)(shou)(shou)(shou)。

三、手動扳手的特點

1、操作簡單

手動扳手的使用相對簡單，操作者只需根據被緊固或拆卸的緊固件的特點，選用相應的扳手。旋(xuan)(xuan)緊操作時，用手(shou)(shou)握(wo)扳手(shou)(shou)柄(bing)末端，順時針方向(xiang)用力旋(xuan)(xuan)緊；旋(xuan)(xuan)松(song)操作時，逆時針方向(xiang)旋(xuan)(xuan)轉即可。

2、價格低

相比電動扳手等高級工具，手動扳手的價格較低，更適合于預算有限的場合。其制造成本也相對較低，使得手動扳手在市(shi)場上(shang)具有(you)較(jiao)高的性價比。

3、勞動強度大

手動(dong)(dong)扳手需要(yao)操作(zuo)者(zhe)手動(dong)(dong)施加力量，因此(ci)勞(lao)動(dong)(dong)強度相(xiang)對(dui)較大。這也限制了其在(zai)一些需要(yao)快速(su)、高效完成工作(zuo)的場(chang)合的應用。然而，在(zai)普(pu)通生活工作(zuo)、機械檢修、設備裝(zhuang)置、家用裝(zhuang)修、汽車修理等(deng)領域，手動(dong)(dong)扳手仍然發(fa)揮(hui)著重(zhong)要(yao)作(zuo)用。