What are the hazards of rotor imbalance? Let's assume that a rotor carries an unbalance, and the centrifugal force it brings F = me ω 2 As some rotors work at 10000 rpm on site, some large fan rotors also reach 1000 rpm. The radius is R and the centrifugal force is e. We can see how great the centrifugal force of 100 g unbalance of a rotor is (some of the unbalance of the rotor is several kilograms or more), which causes vibration of the rotor, affects the performance of the equipment, adds dynamic load to the parts of the machine and thus shortens its service life. Vibration often produces loud noise and pollutes the environment. The consequences will be worse if the vibration reaches a certain level.
Main parameters and maintenance dimensions of dynamic balancing machine:L × W × H=4.9 × 2 × 2.5 m; Balance speed start-up time < 2 minutes; Speed range: 60-10000rPm; Rotor weight {1. Bearing support <25000Kg; 2. Rolling support <20000 Kg}; 95% reduction of imbalance; Power: 75KW.
Because the rotor rotates fast and the weight is heavy, we pour oil into the rollers and shafts once every turn to keep the oil quantity in all parts of the lubrication system sufficient and the oil path unblocked. According to the lubrication chart in the instruction manual, select the lubrication oil number and keep the grease clean, maintain the oil standard of the hydraulic system and the pressure gauge clean, complete and intact. Pay attention to check abnormal noise and high oil temperature.
The cardan shaft coupling is oiled every two months. The rack wipes off the track before moving and pours oil. The balancing speed should be slightly higher than the measuring speed for each selection, so that the energy of the drive motor can be optimally achieved, but the speed should not be too high, otherwise the rotor elements will be out of shape.
Composition and application of dynamic balancing machine:
The main components of dynamic balancing machine are track of balancing machine, two adjustable supports, spindle box (DC motor, servo motor, spindle, dial and drive mechanism), and CNC control box.
The adjustable support mount mainly supports the balanced rotor and the two sensors are the main components. The vibration is caused by unbalance after rotor rotation. When the rotor rotates at a certain speed, the vibration due to centrifugal force becomes larger and larger. At this time, the sensor starts to work. After the rotor speed is stable, the working law of the sensor starts to stabilize and the unbalance quantity is measured regularly.
After the rotor speed is stabilized during balancing, the sensor regularly transmits the electronic signal to the control box, which then changes the electronic signal sent by the sensor into digital display on the display.
In balancing, the errors of personnel (locking error of each link) and the errors of the cardan shaft itself, as well as the errors of rollers and supports, and connecting flanges all exist, so we must remove the unbalance of these errors in order to balance the rotor accurately.
Main parameters and maintenance dimensions of dynamic balancing machine:L × W × H=4.9 × 2 × 2.5 m; Balance speed start-up time < 2 minutes; Speed range: 60-10000rPm; Rotor weight {1. Bearing support <25000Kg; 2. Rolling support <20000 Kg}; 95% reduction of imbalance; Power: 75KW.
Because the rotor rotates fast and the weight is heavy, we pour oil into the rollers and shafts once every turn to keep the oil quantity in all parts of the lubrication system sufficient and the oil path unblocked. According to the lubrication chart in the instruction manual, select the lubrication oil number and keep the grease clean, maintain the oil standard of the hydraulic system and the pressure gauge clean, complete and intact. Pay attention to check abnormal noise and high oil temperature.
The cardan shaft coupling is oiled every two months. The rack wipes off the track before moving and pours oil. The balancing speed should be slightly higher than the measuring speed for each selection, so that the energy of the drive motor can be optimally achieved, but the speed should not be too high, otherwise the rotor elements will be out of shape.
Composition and application of dynamic balancing machine:
The main components of dynamic balancing machine are track of balancing machine, two adjustable supports, spindle box (DC motor, servo motor, spindle, dial and drive mechanism), and CNC control box.
The adjustable support mount mainly supports the balanced rotor and the two sensors are the main components. The vibration is caused by unbalance after rotor rotation. When the rotor rotates at a certain speed, the vibration due to centrifugal force becomes larger and larger. At this time, the sensor starts to work. After the rotor speed is stable, the working law of the sensor starts to stabilize and the unbalance quantity is measured regularly.
After the rotor speed is stabilized during balancing, the sensor regularly transmits the electronic signal to the control box, which then changes the electronic signal sent by the sensor into digital display on the display.
In balancing, the errors of personnel (locking error of each link) and the errors of the cardan shaft itself, as well as the errors of rollers and supports, and connecting flanges all exist, so we must remove the unbalance of these errors in order to balance the rotor accurately.
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