一、扭力扳手有哪些种类
1、 What kinds of torque wrenches are there
1、按动力源可分为：电动扭力扳手、气动扭力扳手、液压扭力扳手及手动扭力扳手;
1. According to the power source, it can be divided into: electric torque wrench, pneumatic torque wrench, hydraulic torque wrench and manual torque wrench;
2、按测量原理可分为：预置式、示值式、指针式、数字式、电子式以及定值式扳手。
2. According to the measurement principle, it can be divided into: preset wrench, indicating wrench, pointer wrench, digital wrench, electronic wrench and fixed value wrench.
二、预置式扭力扳手的特点
2、 Characteristics of preset torque wrench
预置式扭力扳手具有预设扭矩数据和声响装配。当紧固件的拧紧扭矩达到预设数据时，能自动拍发讯号"卡嗒"(click)的一声，同时伴有明显的手抚摸时的感觉振动，提示工作完成。解除有效用力后，扳手各相关零件能自动复位 。
Preset torque wrench has preset torque data and sound assembly. When the tightening torque of the fastener reaches the preset data, it can automatically send a signal "click", accompanied by obvious sensory vibration when touching, indicating that the work is completed. After releasing the effective force, all relevant parts of the wrench can be reset automatically.
可手动精确设定扭矩值;手柄人体工程学优化设计，握持舒适，大大降低高强度操作时产生的疲劳感。
The torque value can be accurately set manually; The ergonomic optimization design of the handle makes it comfortable to hold, greatly reducing the fatigue caused by high-intensity operation.
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