扭矩扳手又叫力矩扳手（扭力扳手、扭矩可調(diào)扳手），是扳手的一種。目前市場(chǎng)上常見(jiàn)的有手動(dòng)扭力扳手，電動(dòng)扭力扳手和氣動(dòng)扭力扳手。電動(dòng)扭力扳手廣泛用于對(duì)擰緊工藝有嚴(yán)格要求的裝配線，使產(chǎn)品各個(gè)緊固件扭矩值一致，生產(chǎn)出來(lái)的產(chǎn)品質(zhì)量有保障。
Torque wrench is also called torque wrench (torque wrench, torque adjustable wrench), which is a kind of wrench. At present, manual torque wrench, electric torque wrench and pneumatic torque wrench are common in the market. Electric torque wrench is widely used in assembly lines with strict requirements for tightening process, so that the torque value of each fastener of the product is consistent, and the product quality is guaranteed.
扭矩扳手使用時(shí)發(fā)出咔嗒聲音，是提示已達(dá)到你要求的扭矩值了。
The click sound of the torque wrench indicates that the torque value you require has been reached.
扭矩扳手所發(fā)出的“咔嗒”是由本身內(nèi)部的扭矩釋放結(jié)構(gòu)產(chǎn)生的，其結(jié)構(gòu)分為壓力彈簧、扭矩釋放關(guān)節(jié)、扭矩頂桿三結(jié)構(gòu)所組成。在扭矩扳手上設(shè)定所需扭矩值（由彈簧套在頂桿上向扭矩釋放關(guān)節(jié)施壓），鎖定扭矩扳手，開(kāi)始擰緊螺栓。當(dāng)螺栓達(dá)到扭矩值（當(dāng)使用扭力大于彈簧的壓力）后，會(huì)產(chǎn)生瞬間脫節(jié)的效應(yīng)。在產(chǎn)生脫節(jié)效應(yīng)的瞬間發(fā)出關(guān)節(jié)敲擊，扳手金屬外殼所發(fā)出的“咔嗒”聲。
The "click" of the torque wrench is generated by its internal torque release structure, which is divided into three structures: pressure spring, torque release joint and torque ejector rod. First, set the required torque value on the torque wrench (press the torque release joint by the spring sleeve on the ejector rod), lock the torque wrench and start tightening the bolts. When the bolt reaches the torque value (when the torque used is greater than the pressure of the spring), it will produce the effect of instantaneous disconnection. At the moment of disjointed effect, the joint knock and the "click" sound made by the metal shell of the wrench.
力矩就是力和距離的乘積，在緊固螺絲螺栓螺母等螺紋緊固件時(shí)，需要控制施加的力矩大小，以保證螺紋緊固且不至于因力矩過(guò)大破壞螺紋，所以用扭矩扳手來(lái)操作。設(shè)定好一個(gè)需要的扭矩值上限，當(dāng)施加的扭矩達(dá)到設(shè)定值時(shí)，扳手會(huì)發(fā)出“卡塔”聲響或者扳手連接處折彎一點(diǎn)角度，這就代表已經(jīng)緊固不要再加力了。
Torque is the product of force and distance. When tightening threaded fasteners such as screws, bolts and nuts, it is necessary to control the applied torque to ensure that the threads are tightened and will not damage the threads due to excessive torque, so it is operated with a torque wrench. First, set an upper limit of the required torque value. When the applied torque reaches the set value, the wrench will make a "click" sound or bend a little angle at the wrench connection, which means that it has been tightened and no more force is added.
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