文章介绍了通过优化设计研制成功的高准确度2kN·m扭矩标准装置的结构、特点和关键技术.该装置采用传统的静重平衡式结构,对力臂杠杆、刀口支承和砝码等进行了优化,并采用了自动加载、对中调整、对偶平衡以及PLC控制程序等技术,使该装置的校准可信度和准确度都有所提高. This paper introduces the structure, characteristics and key technologies of the high accuracy 2kN · m torque standard device, which has been successfully developed through the optimization design. The device adopts the traditional static balance weight structure, arm, lever support and weight Optimization, and the use of automatic loading, alignment, dual balance and PLC control programs and other technologies, so that the calibration of the device credibility and accuracy have increased.