What are the hazards of rotor imbalance? We assume that a rotor carries an imbalance, and the centrifugal force it brings is F=me ω 2. Due to some rotors operating at speeds of 10000 rpm on site, and some large fan rotors also reaching 1000 rpm. The radius is R, and the centrifugal force is e. We can see how large the centrifugal force of a rotor with an imbalance of 100 grams is (some rotors have an imbalance of several kilograms or even more), which causes vibration in the rotor. The vibration affects the performance of the equipment, adds dynamic loads to the machine components, and shortens their service life; Vibration often produces loud noise and pollutes the environment; If the vibration reaches a certain level, the consequences will be more severe.

The main parameters and maintenance dimensions of the dynamic balancing machine: L x W x H=4.9 x 2 x 2.5 m; Balance speed start time<2 minutes; Speed range: 60-10000rPm; Weight of rotor {1 Bearing support<25000Kg; 2. Rolling support<20000 Kg}; 95% reduction in imbalance; Power: 75KW.


Due to the fast rotation speed of the rotor and the relatively heavy weight of the cut parts, we pour engine oil between the roller and the shaft every time the car rotates, ensuring that the lubrication system has sufficient oil in all parts and smooth oil circuits. According to the lubrication chart in the manual, select the lubricating oil number and keep the grease clean. Keep the hydraulic system oil mark and pressure gauge clean, complete, and intact. Pay attention to checking for abnormal noise and high oil temperature.


The universal joint is lubricated every two months. Before moving the frame, clean the track and pour oil. The balance speed should be slightly higher than the measured speed each time to achieve the best energy effect of the driving motor. However, the speed should not be too high, otherwise it will cause the rotor components to protrude and deform.


Composition and application of dynamic balancing machine:
The main components of a dynamic balancing machine include a balancing machine track, two adjustable support seats, a spindle box (DC motor, servo motor, spindle, dial and transmission mechanism), and a CNC control box.

The adjustable support seat mainly supports the balanced rotor, and the main components are two sensors. After the rotor rotates, it becomes unbalanced and causes vibration. After the rotor rotates for a certain speed, the vibration also increases due to the increasing centrifugal force. At this time, the sensor starts to work. After the rotor speed stabilizes, the working law of the sensor also begins to stabilize, and the imbalance amount is measured regularly.

After the rotor speed stabilizes during balancing, the sensor regularly transmits electronic signals to the control box. At this time, the CNC control box changes the electronic signals sent by the sensor into digital display on the display.

Due to personnel errors (locking errors in each link) and the inherent errors of the universal joint shaft, as well as errors in the rollers, brackets, and connecting flanges, we must remove the imbalance of these errors in order to accurately balance the rotor.