A torsion wrench is a tool used to tighten high-strength bolts of the torsion shear type. There are generally electric shear wrenches and manual shear wrenches, among which electric shear pliers are more common. The application of electric torque wrench is mainly for the initial tightening of shear type high-strength bolts. Impact electric wrench or constant torque wrench can be used for tightening, and shear wrench must be used for tightening. Therefore, it is specifically used for tightening shear type high-strength bolts. For industrial electric shear wrenches, on the one hand, reliable factory procurement should be selected, and on the other hand, attention should be paid to the maintenance and repair of electric wrenches. This can indirectly extend their service life, improve factory efficiency, and save factory costs. Here are the maintenance precautions for electric torsion shear wrenches:

1） 當(dāng)灰塵或沙子等外部物體粘附在套筒上時(shí)，應(yīng)經(jīng)常拆卸和清潔套筒。

1) When external objects such as dust or sand adhere to the sleeve, the sleeve should be frequently disassembled and cleaned.

2） 清潔灰塵時(shí)，請(qǐng)勿使用苯、松節(jié)油和汽油等有機(jī)溶劑，這可能會(huì)造成損壞或顏色變化。

2) When cleaning dust, do not use organic solvents such as benzene, Turpentine and gasoline, which may cause damage or color change.

3） 不要損壞電機(jī)或讓油和有機(jī)溶劑粘附在電機(jī)芯上。

3) Do not damage the motor or allow oil and organic solvents to adhere to the motor core.

4） 使用后，將扳手放在一個(gè)鐵盒中，并放在干燥的地方。

4) After use, place the wrench in an iron box and place it in a dry place.

5） 如果彈射桿耗盡，且彈射裝置失去功能，因此無(wú)法再?gòu)椛滗N尾，則應(yīng)使用新的彈射桿替換耗盡的彈射棒。

5) If the ejection rod is depleted and the ejection device loses function, making it impossible to eject the pin tail, a new ejection rod should be used to replace the depleted ejection rod.

需要注意的是，如果彈射尾桿的銷尾未經(jīng)操作就脫出，則須更換內(nèi)套筒。如果內(nèi)套筒磨損過多，釘尾會(huì)自動(dòng)出來(lái)，這表明可能發(fā)生危險(xiǎn)。

It should be noted that if the pin tail of the ejection tail rod comes out without operation, the inner sleeve must be replaced. If the inner sleeve is worn too much, the nail tail will automatically come out, indicating a potential danger.

6） 碳刷須定期檢查。當(dāng)碳棒長(zhǎng)度小于6mm時(shí)，更換原碳刷。注意：碳刷用于兩個(gè)位置。碳刷長(zhǎng)度應(yīng)大于6mm。如果長(zhǎng)度小于6mm，則更換碳刷。

6) Carbon brushes must be inspected regularly. When the length of the carbon rod is less than 6mm, replace the original carbon brush. Note: The carbon brush is used in two positions. The length of the carbon brush should be greater than 6mm. If the length is less than 6mm, replace the carbon brush.

7）維護(hù)和檢查期間，關(guān)閉開關(guān)并使用扳手?jǐn)嚅_電源。扳手使用后或暫時(shí)無(wú)反射時(shí)，也應(yīng)斷開電源。

7) During maintenance and inspection, turn off the switch and use a wrench to disconnect the power supply. After using the wrench or when there is no reflection temporarily, the power should also be disconnected.

8） 每六個(gè)月或20000次（以先到者為準(zhǔn)）進(jìn)行一次檢修。立即與制造商或經(jīng)銷商進(jìn)行檢修。

8) Perform maintenance every six months or 20000 times (whichever comes first). Immediately conduct maintenance with the manufacturer or distributor.

扭剪型高強(qiáng)度螺栓安裝規(guī)定：安裝時(shí)，高強(qiáng)度螺栓應(yīng)自由穿入孔內(nèi)，不得用力敲擊。當(dāng)螺栓不能自由穿入時(shí)，不允許使用氣割擴(kuò)大孔。相反，需要使用鉸刀鉆孔。在修補(bǔ)孔時(shí)，板層應(yīng)靠近，以防止鐵屑進(jìn)入板縫。鉸孔后，應(yīng)使用磨床去除孔邊緣的毛刺和鐵屑。初擰應(yīng)擰緊螺栓標(biāo)準(zhǔn)軸向力（即設(shè)計(jì)預(yù)緊力）的60%～80%，初擰扭矩值不得小于擰緊扭矩值的30%。從關(guān)節(jié)剛度高的地方到無(wú)約束的自由端。

Installation regulations for torsion shear type high-strength bolts: During installation, high-strength bolts should be freely threaded into the hole and should not be forcefully knocked. When the bolt cannot penetrate freely, gas cutting is not allowed to expand the hole. On the contrary, it is necessary to use a reamer to drill holes. When repairing holes, the board layer should be close to prevent iron filings from entering the board joints. After reaming, a grinder should be used to remove burrs and iron filings from the edge of the hole. The initial tightening should be tightened to 60% to 80% of the standard axial force (i.e. design pre tightening force) of the bolt, and the initial tightening torque value should not be less than 30% of the tightening torque value. From areas with high joint stiffness to unconstrained free ends.

電動(dòng)扭剪扳手主要用于擰緊扭矩剪切型高強(qiáng)度螺栓。其目的是切斷扭矩剪切型高強(qiáng)度螺栓的梅花頭。工作時(shí)，將扳手頭與螺栓頭對(duì)齊，然后單擊開關(guān)開始工作。幾秒鐘后，螺栓梅花頭就會(huì)斷裂，然后拔出扳手拉動(dòng)扳機(jī)彈出梅花頭，這樣扭矩剪切型高強(qiáng)度螺栓就可以緊固。

Electric torque shear wrenches are mainly used to tighten torque shear type high-strength bolts. Its purpose is to cut the plum blossom head of torque shear type high-strength bolts. When working, align the wrench head with the bolt head, and then click the switch to start working. After a few seconds, the bolt head will break, and then pull out the wrench to pull the trigger and pop out the head, so that the torque shear high-strength bolt can be tightened.

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