一、氣動扳手是什么扳手
氣動扳手是擰緊或旋松螺釘用的扭矩扳手,屬于氣動工具,又稱棘輪扳手、氣動(dong)沖(chong)擊扳(ban)手,是用(yong)壓縮空氣作為(wei)動(dong)力來運行,通過持續的動(dong)力源讓(rang)一個具有一定質量的物體加速旋轉,然后瞬間撞向出(chu)力軸,從而可以(yi)獲得(de)比較大(da)的力矩輸出(chu)。
二、氣動扳手有什么用
氣動扭矩扳手是一種手持式旋轉(zhuan)氣動工具,可以精確(que)設定(ding)扭矩,用于完成螺(luo)母和螺(luo)栓的鎖緊或拆(chai)卸工作(zuo),憑借體積小、重(zhong)量輕、單位重(zhong)量輸(shu)出(chu)功率大、可以實現大扭矩輸(shu)出(chu)、反作(zuo)用力小、環境(jing)污染(ran)小,成本低等(deng)優(you)點,在汽(qi)車修理、重(zhong)型設備維修、產品裝(zhuang)配等(deng)領域應用廣泛。
三、氣動扳手原理是什么
扳(ban)手是(shi)常用的(de)工(gong)具,隨著科技的(de)發展、技術的(de)需要,各類高效率扳(ban)手也(ye)被一個個發明出(chu)來,氣(qi)動(dong)扳(ban)手就(jiu)是(shi)其中一種(zhong),它是(shi)以壓縮空氣(qi)為(wei)動(dong)力源(yuan)進行工(gong)作(zuo)的(de),那(nei)么氣(qi)動(dong)扳(ban)手的(de)工(gong)作(zuo)原(yuan)理是(shi)什么呢?
1、氣動扳手的結構
氣(qi)動(dong)扳手一(yi)般由(you)兩大部分(fen)組(zu)成(cheng),分(fen)別為氣(qi)動(dong)馬達(da)和沖(chong)(chong)擊捶打部分(fen):氣(qi)動(dong)馬達(da)由(you)偏心(xin)氣(qi)缸、轉(zhuan)子和活葉片(pian)及密封(feng)蓋等(deng)組(zu)成(cheng),主(zhu)(zhu)要(yao)作用(yong)是將(jiang)氣(qi)能轉(zhuan)化為動(dong)能;沖(chong)(chong)擊錘打部分(fen)主(zhu)(zhu)要(yao)由(you)慣性沖(chong)(chong)擊架、沖(chong)(chong)擊爪和扭(niu)力輸出軸組(zu)成(cheng),主(zhu)(zhu)要(yao)作用(yong)是將(jiang)恒定扭(niu)力轉(zhuan)換(huan)為脈沖(chong)(chong)扭(niu)力。
2、氣動扳手的原理
氣(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)扳(ban)手以來自空(kong)壓機的(de)(de)壓縮空(kong)氣(qi)(qi)(qi)(qi)(qi)為動(dong)(dong)(dong)力,空(kong)氣(qi)(qi)(qi)(qi)(qi)經(jing)過(guo)管路進(jin)入氣(qi)(qi)(qi)(qi)(qi)缸室(shi),利(li)用(yong)氣(qi)(qi)(qi)(qi)(qi)缸的(de)(de)偏心設計,將氣(qi)(qi)(qi)(qi)(qi)流噴向旋轉(zhuan)(zhuan)(zhuan)轉(zhuan)(zhuan)(zhuan)子的(de)(de)活葉片上(shang)帶動(dong)(dong)(dong)轉(zhuan)(zhuan)(zhuan)子旋轉(zhuan)(zhuan)(zhuan),活葉片在(zai)離(li)心作(zuo)用(yong)下(xia)與(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)缸壁緊(jin)貼,將進(jin)氣(qi)(qi)(qi)(qi)(qi)口和出氣(qi)(qi)(qi)(qi)(qi)口動(dong)(dong)(dong)態隔離(li);轉(zhuan)(zhuan)(zhuan)子利(li)用(yong)活葉片上(shang)的(de)(de)壓力差產(chan)生轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong),每到(dao)一定(ding)角度(du)(du)活葉片就會經(jing)過(guo)排氣(qi)(qi)(qi)(qi)(qi)孔,排氣(qi)(qi)(qi)(qi)(qi)孔排出的(de)(de)氣(qi)(qi)(qi)(qi)(qi)流同時與(yu)(yu)進(jin)氣(qi)(qi)(qi)(qi)(qi)流轉(zhuan)(zhuan)(zhuan)回(hui)氣(qi)(qi)(qi)(qi)(qi)缸室(shi),形成高(gao)速轉(zhuan)(zhuan)(zhuan)子。氣(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)馬達產(chan)生的(de)(de)恒定(ding)扭矩通過(guo)花鍵(jian)傳(chuan)遞到(dao)慣(guan)性(xing)沖擊架,將恒定(ding)扭力轉(zhuan)(zhuan)(zhuan)換為脈(mo)沖扭力,產(chan)生高(gao)強度(du)(du)的(de)(de)扭轉(zhuan)(zhuan)(zhuan)慣(guan)性(xing),從而(er)擰緊(jin)或者卸(xie)下(xia)螺釘。