Twist shear high-strength bolts belong to self scalar bolts, and their construction tightening torque is determined by the diameter of the incision between the screw and the end of the bolt's plum blossom head, which is controlled by its torque. During construction, a torsion shear electric wrench should be used, which is simple to use by aligning the bolt and turning the power switch. The electric torque wrench is mainly used for final tightening torque shear high-strength bolts. Its use is to align the bolt and pull the power switch until the plum blossom head of the torque shear high-strength bolt is broken.

該電動(dòng)扳手配有內(nèi)外兩個(gè)套管，外套筒扭螺母，對(duì)螺栓施加扭矩，內(nèi)套筒反向扭梅花頭，兩個(gè)扭矩大小相等，方向相反，尾部梅花頭擰掉，讀出預(yù)拉力值。扭剪型高強(qiáng)度螺栓更具有施工方便，檢查直觀，受力良好，保障質(zhì)量等優(yōu)點(diǎn)，在高層鋼結(jié)構(gòu)工程上大部分都采用這種形式。

This electric wrench is equipped with two inner and outer sleeves. The outer sleeve twists the nut to apply torque to the bolt, and the inner sleeve twists the plum blossom head in the opposite direction. The two torques are equal in magnitude and opposite in direction, and the plum blossom head is unscrewed at the tail end to read the pre tension value. Twist shear high-strength bolts have the advantages of convenient construction, intuitive inspection, good stress, and quality assurance. They are mostly used in high-rise steel structure engineering.

數(shù)顯扭矩扳手和機(jī)械式扭力扳手主要的差異在于數(shù)顯示扭矩扳手有其精準(zhǔn)度與穩(wěn)定度，這是機(jī)械式扭力扳手所望塵莫及的。

The main difference between digital torque wrenches and mechanical torque wrenches lies in their precision and stability, which are unmatched by mechanical torque wrenches.

數(shù)顯示扭矩扳手的準(zhǔn)確度0.5%~3%，機(jī)械式扭力扳手為3%~6%。

The accuracy of the numerical display torque wrench is 0.5%~3%, while that of the mechanical torque wrench is 3%~6%.

其另外一個(gè)差異在于警報(bào)的方式不同。機(jī)械式扭力扳手皆由彈性機(jī)械結(jié)構(gòu)的跳脫或是打滑方式來(lái)警報(bào)使用者已達(dá)到目標(biāo)扭力。而數(shù)顯示扭力扳手的警報(bào)方式則比較多元，主要有：震動(dòng)裝置、燈光提示、聲音提醒、數(shù)字顯示等方式。

Another difference lies in the way the alarm is triggered. Mechanical torque wrenches are alerted to the user that the target torque has been reached by the elastic mechanical structure's jumping or slipping method. The alarm methods for torque wrenches with numerical display are relatively diverse, mainly including vibration devices, light prompts, sound prompts, digital displays, and other methods.

震動(dòng)裝置：當(dāng)達(dá)到目標(biāo)扭力時(shí)，扭矩扳手內(nèi)的震動(dòng)馬達(dá)會(huì)開(kāi)始震動(dòng)，而震動(dòng)的觸感會(huì)讓使用者反射性動(dòng)作地將手從手柄上放開(kāi)，已達(dá)到停止施力的目的。在吵雜的作業(yè)環(huán)境中，震動(dòng)裝置警報(bào)效果更好。

Vibration device: When the target torque is reached, the vibration motor inside the torque wrench will start to vibrate, and the tactile sensation of the vibration will cause the user to reflexively release their hand from the handle, achieving the goal of stopping the force application. In noisy work environments, vibration devices have better alarm effects.

燈光提示：在使用扭力扳手時(shí)，LED會(huì)依照當(dāng)前產(chǎn)生的扭力值與目標(biāo)扭力值的差距，產(chǎn)生不同頻率快慢閃爍;當(dāng)達(dá)到目標(biāo)扭力時(shí)，警示燈會(huì)持續(xù)亮起。當(dāng)使用者看到時(shí)，停止施力，此時(shí)螺絲已精準(zhǔn)達(dá)到目標(biāo)扭力。在明亮度較差的作業(yè)環(huán)境時(shí)，燈光提示效果則為明顯。

Light prompt: When using a torque wrench, the LED will flash at different frequencies based on the difference between the current torque value and the target torque value; When the target torque is reached, the warning light will continue to light up. When the user sees it, stop applying force, and the screw has accurately reached the target torque. When working in environments with poor brightness, the lighting prompt effect is more pronounced.

聲音提醒：在使用扭力扳手時(shí)，蜂鳴器會(huì)依照當(dāng)前產(chǎn)生的扭力值與目標(biāo)扭力值的差距，產(chǎn)生不同頻率發(fā)出嗶鳴聲若當(dāng)前產(chǎn)生的扭力值越靠近目標(biāo)扭力值，蜂鳴器的嗶 鳴聲頻率會(huì)越快速，當(dāng)達(dá)到目標(biāo)扭力時(shí)，蜂鳴器會(huì)持續(xù)發(fā)出長(zhǎng)嗶鳴聲。使用者可以依照聲音頻率來(lái)控制施加扭力的程度;當(dāng)使用者聽(tīng)到長(zhǎng)嗶鳴聲時(shí)，停止施力，此時(shí)螺絲已精準(zhǔn)達(dá)到目標(biāo)扭力。在一般環(huán)境下，聲音提醒是為有效率的一種方式。

Sound reminder: When using a torque wrench, the buzzer will emit a beep at different frequencies based on the difference between the current torque value and the target torque value. If the current torque value is closer to the target torque value, the beep frequency of the buzzer will be faster. When the target torque is reached, the buzzer will continue to emit a long beep sound. Users can control the degree of torque application based on sound frequency; When the user hears a long beep, stop applying force, and the screw has accurately reached the target torque. In general environments, sound reminders are an efficient way.

數(shù)字顯示：在使用扭力扳手時(shí)，LCD顯示屏?xí)@示當(dāng)下所產(chǎn)生的扭力;施加越大的力量，數(shù)字則會(huì)逐漸增加。眼睛直視著LCD顯示屏上的數(shù)字變化，可以更精準(zhǔn)地控制欲產(chǎn)生的扭力，并將誤差的程度降到低處。此方式特別適合執(zhí)行于要求高精度、高品質(zhì)的組裝修繕作業(yè)。

Digital display: When using a torque wrench, the LCD display screen will display the current torque generated; The greater the force applied, the more the number will gradually increase. Gazing directly at the digital changes on the LCD screen allows for more precise control of the desired torque and reduces the degree of error. This method is particularly suitable for performing group decoration and repair operations that require high precision and quality.

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