一、改进前带传动试验台存在的问题该试验台装置为开式平皮带传动(图1)。为了测出两带轮的转子力矩,将电动机、发电机的轴用滚珠轴承支承于各自的支架上,通过杠杆和弹簧秤上的不同读数值可测出它们的定子力矩。根据牛顿定律可知,转子与定子所产生的力矩其值大小相等、方向相反,从而 First, to improve the front belt drive test bed problems The test rig device for the open flat belt drive (Figure 1). In order to measure the rotor torque of the two pulleys, the shaft of the motor and the generator are supported on their brackets with their respective bearings, and their stator torques can be measured by different readings on the lever and the spring balance. According to Newton’s law, the torque generated by the rotor and the stator is equal in magnitude and opposite in direction, so that