电动扳手没力原因可bai能是：1、电机损du坏；2：电池没电。
The reason why the electric wrench has no force can be: 1. The motor is damaged; 2. The battery is dead.
电动扳手主要应用于钢结zhi构安装dao行业，专门安装钢结构高强螺栓，高强度螺栓是用来连接钢结构接点的，通常是用螺栓群的方式出现。高强螺栓可分为扭剪型和大六角型两种，国标扭剪型高强螺栓为M16、M20、M22、M24四种，非国标的M27、M30两种；国标大六角高强螺栓为M16、M20、M22、M24、M27、M30等几种。一般的对于高强螺栓的紧固都要先初紧再终紧，而且每步都需要有严格的扭矩要求。大六角高强螺栓的初紧和终紧都必须使用定扭矩扳手.故各种电动扳手就是为各种紧固需要而来的。
Electric wrench is mainly used in steel structure installation Dao industry, which is used to install steel structure high strength bolts. High strength bolts are used to connect steel structure joints, usually in the form of bolt group. 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.
使用效果
Application effect
冲击电动扳手主要是初紧螺栓的，它的使用很简单，就是对准螺栓扳动电源开关就行。电动扭剪扳手主要是终紧扭剪型高强螺栓的，它的使用就是对准螺栓扳动电源开关，直到把扭剪型高强螺栓的梅花头打断为止。电动定扭矩扳手既可初紧又可终紧，它的使用是先调节扭矩，再紧固螺栓。电动转角扳手主要也属于定扭矩扳手的一种，它的使用是先调节旋转度数，再紧固螺栓。电动角向扳手是一种专门紧固钢架夹角部位螺栓的电动扳手，它的使用和电动扭剪扳手原理一样。
The impact electric wrench is mainly used to tighten the bolt, and its use is very simple, which is to align the bolt and pull the power switch. The main purpose of the electric wrench is to finally tighten the high-strength bolt. Its use is to align the bolt and pull the power switch until the plum head of the high-strength bolt is broken. The electric constant torque wrench can be used for initial tightening and final tightening. Its use is to adjust the torque first and then tighten the bolts. Electric angle wrench is also a kind of constant torque wrench. Its use is to adjust the rotation degree first, and then tighten the bolt. The electric angle wrench is a kind of electric wrench specially used to tighten the bolts at the angle of steel frame. Its use is the same as that of the electric twist shear wrench.
性能
performance
电动扭剪扳手顾名思义就是扭剪梅花头螺栓拧紧作业的必备工具，帮助您装、拆螺拴、螺母，同时能比较准确地控制拧紧扭矩。利用螺栓定扭矩，当扳手达到一定扭矩时即可剪断螺栓的梅花头部分，其扭矩精度和轴向拉力是靠螺栓的定扭矩V型切口来保证的。拆装扭力矩大、比手工更保险可靠。方便、美观、实用、便于随车携带。广泛用于钢结构桥梁、厂房、发电设备等设施的施工作业。
As the name suggests, it is necessary to tighten the nut and screw head with an electric wrench, which can help you to control the torque of the bolt. When the wrench reaches a certain torque, the plum head part of the bolt can be cut off by using the fixed torque of the bolt. The torque accuracy and axial tension are guaranteed by the V-shaped notch of the bolt with constant torque. Disassembly torque is large, more safe and reliable than manual. It is convenient, beautiful, practical and easy to carry with the car. It is widely used in the construction of steel structure bridge, workshop, power generation equipment and other facilities.
电动扳手的特点：（1）使用寿命长（2）手柄和机壳材料散热性好（3）功率大（4）耐撞击性强（5）手使用性价比
The characteristics of the electric wrench are: (1) long service life; (2) good heat dissipation of handle and casing; (3) high power; (4) strong impact resistance; (5) the best performance price ratio of hand use
电动扭剪扳手是一种终紧扭剪型高强度螺栓的工具，一般有电动扭剪扳手和手动扭剪扳手，其中电动扭剪扳手比较常见。
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.
扭剪扳手的应用： 扭剪型高强螺栓的初紧可使用冲击电动扳手或定扭矩扳手,而终紧必须使用扭剪扳手，所以扭剪扳手是专门终紧扭剪型高强螺栓的。
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： 扭剪扳手主要是终紧扭剪型高强螺栓的，它的目的就是把扭剪型高强螺栓的梅花头打断即可。工作时将扳手头对准螺栓头，扣动开关即可开始工作，几秒后，螺栓梅花头将被扭断，然后抽出扳手扣动扳机将梅花头弹出，即结束工作。
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.
扭剪扳手的特点： 操作方便、省时省力、方便。
The characteristics of twist shear wrench: easy to operate, time-saving and labor-saving, safe and convenient.
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