Button shear type electric wrench Impact wrench Fixed torque wrench The only difference is the torque shear type electric wrench

定扭矩/扭剪型電動扳手廠家區(qū)別

Difference between fixed torque/shear type electric wrench manufacturers

只有扭剪型電動扳手有內(nèi)套筒。

Only the electric wrench of torsion shear type has an inner sleeve.

沖擊扳手適用于普通螺栓，定扭矩扳手適用于高強度螺栓(大陸角型)的初緊與終緊；扭剪扳手適用于高強度螺栓(梅花型)的終緊。

The impact wrench is applicable to ordinary bolts, and the constant torque wrench is applicable to the initial tightening and final tightening of high-strength bolts (continental angle type); The torque wrench is applicable to the final tightening of high-strength bolts (quincunx type).

注：沖擊電動扳手的工作效率較高，一般每分鐘沖擊次數(shù)1000次以上。梅花型的高強螺栓的初緊可以用定扭矩電動扳手或沖擊扳手，而一般來說大陸角型高強螺栓的施工工藝對初緊的扭矩精度要求較高，需要用相應(yīng)扭矩的定扭矩扳手來施工。

Note: The working efficiency of electric impact wrench is high, and the number of impacts per minute is generally more than 1000. The fixed torque electric wrench or impact wrench can be used for the initial tightening of the torx type high-strength bolt. Generally speaking, the construction process of the continental angle type high-strength bolt requires high torque accuracy for the initial tightening, and the corresponding torque fixed torque wrench is required for construction.

不需要校驗。

No verification is required.

不像定扭矩電動扳手，需要校驗扭矩的精度，是否準(zhǔn)確，扭剪型電動扳手只是將扭剪型高強螺栓的梅花頭打斷，既是完成了它的工作目的。

Unlike the constant torque electric wrench, it is necessary to verify the accuracy of the torque. The torsional shear electric wrench only breaks the torx head of the torsional shear high-strength bolt, which is the purpose of its work.

因為扭剪型電動扳手在使用時，將扭剪型電動扳手頭對準(zhǔn)扭剪型高強螺栓頭，扣動開關(guān)即可開始工作，幾秒后，螺栓梅花頭將被扭斷，抽出扳手扣動扳機(jī)將梅花頭彈出，即結(jié)束工作。電動扳手主要應(yīng)用于鋼結(jié)構(gòu)安裝行業(yè)，專門安裝鋼結(jié)構(gòu)高強螺栓，高強度螺栓是用來連接鋼結(jié)構(gòu)接點的，通常是用螺栓群的方式出現(xiàn)。高強螺栓可分為扭剪型和大六角型兩種，國標(biāo)扭剪型高強螺栓為M16、M20、M22、M24四種，現(xiàn)在也有非國標(biāo)的M27、M30兩種；國標(biāo)大六角高強螺栓為M16、M20、M22、M24、M27、M30等幾種。一般的對于高強螺栓的緊固都要先初緊再終緊，而且每步都需要有嚴(yán)格的扭矩要求。扭剪型高強螺栓的初緊可使用沖擊電動扳手或定扭矩扳手,而終緊使用扭剪扳手;大六角高強螺栓的初緊和終緊都使用定扭矩扳手.故各種電動扳手就是為各種緊固需要而來的。

Because when using the torsional shear type electric wrench, align the head of the torsional shear type electric wrench with the head of the torsional shear type high-strength bolt, and then pull the switch to start working. After a few seconds, the bolt torx will be broken, and then pull out the wrench to pull the trigger to pop the torx out, which is the end of the work. The electric wrench is mainly used in the steel structure installation industry to install steel structure high-strength bolts. High strength bolts are used to connect steel structure joints, usually in the form of bolt groups. High strength bolts can be divided into two types: torsional shear type and large hexagon type. The national standard torsional shear type high strength bolts are M16, M20, M22 and M24. Now there are also two types of non national standard M27 and M30; The national standard large hexagon high-strength bolts include M16, M20, M22, M24, M27, M30, etc. Generally, high-strength bolts shall be tightened first and then finally, and each step requires strict torque requirements. The impact electric wrench or constant torque wrench can be used for the initial tightening of the shear type high-strength bolt, while the shear wrench can be used for the final tightening; Fixed torque wrenches are used for the initial and final tightening of large hexagon high-strength bolts, so various electric wrenches are designed for various tightening needs.

特點：

characteristic:

操作方便、省時省力、方便。

Convenient operation, time-saving and labor saving, safe and convenient.

“定扭矩扳手”

"Constant torque wrench"

定扭矩扳手一般就是可以設(shè)定扭矩值的電動扳手，也叫定扭矩電動扳手。電動扭矩扳手一般用來緊固大六角高強螺栓，使用時，先把扭矩調(diào)到需要規(guī)定的扭矩，然后緊固螺栓。

A constant torque wrench is generally an electric wrench that can set the torque value, also known as a constant torque electric wrench. The electric torque wrench is generally used to tighten the large hexagon high-strength bolts. When using, first adjust the torque to the required torque, and then tighten the bolts.

電動定扭扳手分為電流式和動態(tài)扭矩傳感器式兩種，由控制器和擰緊軸組成。電流式定扭扳手根據(jù)電機(jī)擰緊過程中電流值的變化來判斷扭力值，當(dāng)達(dá)到預(yù)定扭力時，電機(jī)停止工作。動態(tài)扭矩傳感器式是在擰緊軸上安裝有傳感器，時刻監(jiān)測扭力值的變化，當(dāng)達(dá)到預(yù)定扭力時，電機(jī)停止工作。

Electric constant torque wrenches are divided into current type and dynamic torque sensor type, which are composed of controller and tightening shaft. The current type constant torque wrench judges the torque value according to the change of current value during the motor tightening process. When the predetermined torque is reached, the motor stops working. The dynamic torque sensor type is equipped with a sensor on the tightening shaft to monitor the change of torque value at all times. When the predetermined torque is reached, the motor stops working.

電動扭矩扳手具有精度高(±2%)、故障率低、壽命長、可編程，可對扭力和角度控制、可多種扭力選擇的優(yōu)點。因為擰大扭矩螺栓會有反作用力，所以一般在大扭矩擰緊工件上都會設(shè)計反作用力臂，防 止操作人員出現(xiàn)事故。

The electric torque wrench has the advantages of high accuracy (± 2%), low failure rate, long service life, programmable, torque and angle control, and multiple torque options. Because there will be reaction force when the torque bolt is tightened, reaction arm is generally designed on the workpiece tightened with high torque to prevent operators from safety accidents.