动平衡机主要由电测部分、电控部分和机械三部分组成，且三个部分缺一不可，都对选择平衡机起着至关重要的作用。每个组成都有其各自的功能。The dynamic balancing machine is mainly composed of three parts: the electric measuring part, the electric control part and the mechanical part, and the three parts are indispensable. Each component has its own function.
The electric measuring system: the main function is to process electrical signals by the sensor, shows the unbalance of rotor position and size. It is a key component of the balancing machine, which directly affects the performance of the balancing machine.
The mechanical part: general horizontal dynamic balance for example, lower balance machine bed is the foundation placed on balance machine parts and solid equipment, by about two swing frame through a roller supporting the rotor, rotor rotation condition. Drag to rotate by the belt or coupling rotor, is installed in the two frame of the pendulum sensor vibration signal into electrical signals to the electric part, the mechanical part also includes an axial stop frame and the safety frame and other auxiliary parts.
The control part is: control drag balancing machine motor start and stop and speed components, also called electric control box. The electric control part is two kinds of DC control and AC control, the AC control is divided into two speed AC control and frequency conversion AC control. Some of the balance of the electrical control part and the mechanical part into one.