電動扳手是扳手的一種，電動扳手就是以電源或電池為動力的扳手，是一種擰緊螺栓的工具。電動扳手分類：主要分為沖擊扳手、扭剪扳手、定扭矩扳手、轉(zhuǎn)角扳手、角向扳手、液壓扳手、扭力扳手、充電式電動扳手。    

Electric wrench is a kind of wrench. Electric wrench is a wrench driven by power supply or battery. It is a tool for tightening bolts. Electric wrench classification: mainly divided into impact wrench, twist shear wrench, constant torque wrench, angle wrench, angle wrench, hydraulic wrench, torque wrench, rechargeable electric wrench.    

下面，就為您介紹電動扳手操作注意事項及電動扳手保養(yǎng)：    

The following, for you to introduce electric wrench operation precautions and electric wrench maintenance:

電動扳手使用和操作注意事項  

Use and operation precautions of electric wrench

1、確認現(xiàn)場所接電源與電動扳手銘牌是否相符。是否接有漏電保護器。 

1. Confirm whether the power supply connected on site is consistent with the electric wrench nameplate. Whether there is leakage protector.  

2、根據(jù)螺帽大小選擇匹配的套筒，并妥善安裝。  

2. Select the matching sleeve according to the nut size and install it properly.  

3、在送電前確認電動扳手上開關(guān)斷開狀態(tài)，否則插頭插入電源插座時電動扳手將出其不意地立刻轉(zhuǎn)動，從而可能招致人員傷害危險。  

3. Before power transmission, make sure that the switch on the electric wrench is disconnected, otherwise the electric wrench will turn suddenly when the plug is inserted into the power socket, which may cause personal injury.  

4、若作業(yè)場所在遠離電源的地點，需延伸線纜時，應(yīng)使用容量足夠，安裝合格的延伸線纜。延伸線纜如通過人行過道應(yīng)高架或做好防止線纜被碾壓損壞的措施。  

4. If the working place is far away from the power supply, the extension cable with sufficient capacity and qualified installation shall be used. If the extension cable passes through the pedestrian aisle, it should be elevated or take measures to prevent the cable from being crushed and damaged.  

5、盡可能在使用時找好反向力距支靠點，以防反作用力傷人。  

5. Try to find the support point of the reverse force distance when using, so as to prevent the reaction force from hurting people.  

6、使用時發(fā)現(xiàn)電動機碳火花異常時，應(yīng)立即停止工作，進行檢查處理，排除故障。此外碳刷必須保持清潔干凈。  

6. When the carbon spark of the motor is abnormal, it should stop working immediately, check and deal with it to eliminate the fault. In addition, carbon brushes must be kept clean.  

7、站在梯子上工作或高處作業(yè)應(yīng)做好高處墜落措施，梯子應(yīng)有地面人員扶持。 

7. When working on a ladder or working at a high place, falling measures shall be taken, and the ladder shall be supported by ground personnel.  

電動扳手檢驗試驗及保養(yǎng)  

Inspection, test and maintenance of electric wrench

1電動扳手的金屬外殼應(yīng)可靠接地，其外殼應(yīng)有定期檢驗試驗合格證，并在有效期限內(nèi)。  

1. The metal shell of the electric wrench shall be reliably grounded, and its shell shall be provided with periodic inspection and test certificate, which shall be within the validity period.  

2檢查電動扳手機身安裝螺釘緊固情況，若發(fā)現(xiàn)螺釘松了，應(yīng)立即重新扭緊，否則會導(dǎo)致電動扳手故障。  

2. Check the tightening condition of the mounting screw of the electric wrench body. If the screw is found to be loose, it should be re tightened immediately, otherwise, the electric wrench will fail.  

3檢查手持電動扳手兩側(cè)手柄完好，不開裂可破損，安裝牢固。    

3. Check that the handles on both sides of the hand-held electric wrench are in good condition and can not be damaged and installed firmly.    

電動扳手的特點：

Features of electric wrench:

（1）使用壽命長

(1) Long service life

（2）手柄和機殼材料散熱性好

(2) The material of handle and case has good heat dissipation

（3）功率大

(3) High power

（4）耐撞擊性強

(4) Strong impact resistance

（5）手使用性價比  

(5) The most cost-effective hand use

電動扭剪扳手是一種終緊扭剪型高強度螺栓的工具，一般有電動扭剪扳手和手動扭剪扳手，其中電動扭剪扳手比較常見。  

The electric twist shear wrench is a kind of tool for the final tightening of high-strength bolts. Generally, there are electric wrench and manual wrench, among which the electric wrench is more common.  

扭剪扳手的應(yīng)用：  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,而終緊必須使用扭剪扳手，所以扭剪扳手是專門終緊扭剪型高強螺栓的。  

Application of torsion shear wrench: the impact electric wrench or constant torque wrench can be used for the initial tightening of high-strength bolts, while the torsion shear wrench must be used for the final tightening. Therefore, the torsion shear wrench is specially used for the final tightening of the high-strength bolts.  

扭剪扳手的使用：  扭剪扳手主要是終緊扭剪型高強螺栓的，它的目的就是把扭剪型高強螺栓的梅花頭打斷即可。工作時將扳手頭對準螺栓頭，扣動開關(guān)即可開始工作，幾秒后，螺栓梅花頭將被扭斷，然后抽出扳手扣動扳機將梅花頭彈出，即結(jié)束工作。  

Use of twist shear wrench: the purpose of the wrench is to break the plum head of the high strength bolt. When working, the wrench head should be aligned with the bolt head, and the switch can be pulled to start the work. After a few seconds, the bolt plum head will be broken, and then pull out the wrench to pull the trigger to pop out the plum head, which is the end of the work.  

扭剪扳手的特點：  操作方便、省時省力、方便。   

The characteristics of twist shear wrench: easy to operate, time-saving and labor-saving, safe and convenient.   

電動扳手應(yīng)用  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，國標扭剪型高強螺栓為M16、M20、M22、M24四種，非國標的M27、M30兩種；國標大六角高強螺栓為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格的扭矩要求。大六角高強螺栓的初緊和終緊都必須使用定扭矩扳手.故各種電動扳手就是為各種緊固需要而來的。

Electric wrench application electric wrench is mainly used in the steel structure installation industry, which is specially used 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: torsion shear type and large hexagon type. There are four kinds of national standard torsional shear high-strength bolts: M16, M20, M22 and M24, and non-national standard M27 and M30; national standard large hexagon high-strength bolts are M16, M20, M22, M24, M27, M30, etc. Generally, the tightening of high-strength bolts should be first and then final tightening, and each step needs to have strict torque requirements. Constant torque wrench must be used in the initial and final tightening of large hexagon high strength bolts. Therefore, all kinds of electric spanners are for various tightening needs.