電動(dòng)扳手是指擰緊和旋松螺栓及螺母的電動(dòng)工具，是一種擰緊高強(qiáng)度螺栓的工具。電動(dòng)扳手主要應(yīng)用于鋼結(jié)構(gòu)安裝行業(yè)(其中包括石油化工，船舶制造、修理等行業(yè))。
Electric wrench refers to an electric tool for tightening and loosening bolts and nuts. It is a tool for tightening high-strength bolts. Electric wrenches are mainly used in steel structure installation industry (including petrochemical, shipbuilding, repair and other industries).
電動(dòng)扳手的原理就是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大破壞螺紋，所以用扭矩扳手來操作。電動(dòng)扭矩扳手也叫扭力扳手或力矩扳手，力矩就是力和距離的乘積。操作時(shí)，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)，電動(dòng)扳手會自動(dòng)停止。
The principle of electric wrench is to control the applied torque when tightening screw, bolt, nut and other threaded fasteners, so as to ensure that the thread is tightened and will not damage the thread due to excessive torque, so it is operated with torque wrench. Electric torque wrench is also called torque wrench or torque wrench. Torque is the product of force and distance. During operation, first set an upper limit of the required torque value. When the applied torque reaches the set value, the electric wrench will stop automatically.
電動(dòng)扳手分類
Classification of electric wrenches
電動(dòng)扳手主要分為沖擊式電動(dòng)扳手，電動(dòng)扭剪扳手，電動(dòng)定扭矩扳手，電動(dòng)轉(zhuǎn)角扳手和電動(dòng)角向扳手。它們的使用方法也是各不相同，下面就是他們的介紹方法。
Electric wrenches are mainly divided into impact electric wrenches, electric torsion shear wrenches, electric constant torque wrenches, electric angle wrenches and electric angle wrenches. Their use methods are also different. The following is their introduction.
沖擊電動(dòng)扳手：主要是初緊螺栓的，它的操作簡單，就是對準(zhǔn)螺栓扳動(dòng)電源開關(guān)就行。
Impact electric wrench: it is mainly used to initially tighten the bolt. Its operation is simple, that is, align the bolt and pull the power switch.
電動(dòng)扭剪扳手：主要是終緊扭剪型高強(qiáng)螺栓的，它的使用就是對準(zhǔn)螺栓扳動(dòng)電源開關(guān)，直到把扭剪型高強(qiáng)螺栓的梅花頭打斷為止。
Electric torsion shear wrench: it is mainly used to finally tighten the torsion shear high-strength bolt. Its use is to align the bolt and pull the power switch until the plum blossom head of the torsion shear high-strength bolt is broken.
電動(dòng)定扭矩扳手：既可初緊又可終緊，它的使用是先調(diào)節(jié)扭矩，再緊固螺栓。
Electric constant torque wrench: it can be tightened initially and finally. Its use is to adjust the torque first and then tighten the bolts.
電動(dòng)轉(zhuǎn)角扳手：主要也屬于定扭矩扳手的一種，它的使用是先調(diào)節(jié)旋轉(zhuǎn)度數(shù)，再緊固螺栓。
Electric angle wrench: it mainly belongs to a kind of constant torque wrench. Its use is to adjust the rotation degree first, and then tighten the bolt.
電動(dòng)角向扳手：是一種專門緊固鋼架夾角部位螺栓的電動(dòng)扳手，它的使用和電動(dòng)扭剪扳手原理一樣。
Electric angle wrench: it is an electric wrench specially used to fasten the bolts at the included angle of the steel frame. Its use principle is the same as that of the electric torsion shear wrench.
電動(dòng)扳手的特點(diǎn)
Characteristics of electric wrench
使用壽命長
Long service life
電動(dòng)扭矩扳手采用的是出色鋰電技術(shù)，使用壽命相較普通的液壓扳手延長400%，并擁有無與倫比的電池使用時(shí)間。
The electric torque wrench adopts advanced lithium battery technology. Its service life is 400% longer than that of ordinary hydraulic wrench, and has unparalleled battery service time.
手柄和機(jī)殼材料散熱性好
Handle and casing materials have good heat dissipation
電動(dòng)扭矩扳手的手柄和外殼采用的是耐高溫的材料，具有良好的耐熱性和散熱性，可以保持機(jī)具的長期工作。
The handle and shell of the electric torque wrench are made of high temperature resistant materials with good heat resistance and heat dissipation, which can maintain the long-term operation of the machine.
功率大
High power
耐撞擊性強(qiáng)
Strong impact resistance
使用性價(jià)比高
High cost performance
