Torsion wrench is an essential tool in the field of modern mechanical maintenance, which can help people complete various bolt and nut tightening tasks quickly and easily. This article will provide a detailed introduction to this practical tool from the aspects of its properties, structure, usage methods, and precautions.

属性：扭剪扳手是一种可以自动校准扭矩值的扳手，在不同的需求下可调节扭矩大小，大扭力值可达到1000Nm以上。正因为有了扭剪扳手的存在，人们对于使用的扭矩值能够达到更加精准，从而避免了由于过松或者过紧所导致的安全问题。

Attribute: Torsion wrench is a type of wrench that can automatically calibrate torque values. It can adjust the torque size according to different needs, and the large torque value can reach over 1000Nm. Thanks to the existence of a torsion wrench, people can achieve more accurate torque values, thereby avoiding safety issues caused by being too loose or too tight.

结构：扭剪扳手主要由两个部分组成，即弯曲杠杆和卡口头。弯曲杠杆的把手比较长，手握起来比较舒适，卡口头则可以安装不同尺寸的指向头部，在维修中更加方便快捷。同时，扭剪扳手的内部机构还包括了可调节的弹簧、齿轮以及其他配件，保证扳手的功能使用更加稳定。

Structure: The torsion shear wrench mainly consists of two parts, namely a bending lever and a clamp mouth. The handle of the curved lever is relatively long, making it comfortable to hold. The bayonet head can be installed with different sizes pointing towards the head, making maintenance more convenient and efficient. At the same time, the internal mechanism of the torsion wrench also includes adjustable springs, gears, and other accessories, ensuring a more stable use of the wrench's function.

使用方法：首先需要根据任务中的具体需求选择不同的扳头尺寸，并且将其安装到扳手头部。接下来，操作人员需要通过手动旋转扳手来调节扭矩值，确保每次进行固紧时都遵循着正确的扭力强度。在完成维修任务后，用户则可以通过反向旋转操作来解除所固定的螺母或螺栓。

Usage: Firstly, different wrench sizes need to be selected based on the specific requirements in the task, and installed on the wrench head. Next, the operator needs to manually rotate the wrench to adjust the torque value, ensuring that the correct torque strength is followed every time tightening is carried out. After completing the maintenance task, the user can release the fixed nut or bolt by reverse rotation operation.

注意事项：在使用扭剪扳手之前一定要对自己需要维修的零部件有一个大致的了解，以便于选择合适的扭剪扳手和正确地调节所需扭矩大小。此外，还需要注意选择高质量的扭剪扳手并且定期进行检测，以确保自身维修安全。

Attention: Before using a torque wrench, it is important to have a general understanding of the components that need to be repaired, in order to select the appropriate torque wrench and adjust the required torque correctly. In addition, it is also necessary to pay attention to selecting high-quality torsion shear wrenches and conducting regular inspections to ensure self maintenance safety.

小结：扭剪扳手的出现，提高了机械维修的效率，同时也更好地保障了操作人员的维修安全。学会正确地使用扭剪扳手，对于机械从业者是一项非常必要的技能和知识。

Summary: The emergence of a torsion wrench has improved the efficiency of mechanical maintenance and also better ensured the maintenance safety of operators. Learning to use a torsion wrench correctly is a necessary skill and knowledge for mechanical practitioners.