Nowadays, rotor dynamic balance testing is very important in the mechanical industry, and people's measurement requirements are also increasing. The development of machinery has also greatly improved in vibration and noise. Due to the high demand for rotor dynamic balance correction, which is inconvenient to disassemble, we have improved the quality and reduced the volume of the on-site dynamic balance instrument, while also achieving more accurate measurement accuracy.
The on-site dynamic balance instrument is composed of a host, cables, sensors and magnetic seats, speed sensors and brackets, etc. For different rotating workpieces, select a suitable dynamic balancing machine to measure the corresponding imbalance correction. For beginners, the on-site dynamic balance instrument with automatic diagnosis and navigation functions is much simpler to operate.
On site dynamic balance instrument
What precautions should be taken before using the on-site dynamic balance instrument, and what are the preparation works? Huake Zhichuang Dynamic Balance Technology Master shares the operation steps of the on-site dynamic balance instrument.
1、 Preparation work
1. One movable multi hole socket (220V power supply);
2. One electric welding machine;
3. Temporary and formal weight blocks (temporary weight of about 50g, formal weight of about 500g);
4. A precision electronic balance.
2、 Preparation before testing
1. Install the speed probe on the magnetic base bracket, attach a reflective sheet at the measurement point of the measured balance rotor, and connect the vibration probe with a cable. Install them on the side planes of the front and rear bearing seats (note: the reflective sheet should be firmly attached to the rotor to avoid throwing it out and injuring people).
2. Connect the power cord to the host, speed probe, and vibration probe.
3. Turn on the machine and adjust the position and sensitivity between the speed probe and the balance rotor appropriately. The distance between the speed probe and the reflector is about 5mm, which is the position when the red and green lights are on.
4. After starting up, enter the initial mode and select single-sided balance. Press the mode key MODE to display 1PL, then press the confirmation key ENT to confirm. At this time, the INIT light should be on. If other lights are on, press the CAN button for 3 seconds to reset and then select single side balance again.
3、 Initialization operation
1. After starting up, check the lights and indicators on the operation panel (INIT light on).
2. Check if the balanced rotor is in its initial state without temporary weights and balanced weights.
3. Turn on the motor and drive the rotor to rotate. By checking the speed indicator (digital display), press the start button when the speed reaches a constant state.
4. During the operation, the actual waveform height and imbalance angle are displayed 5 times in indicator 1 # area. When initialization is completed, the TEST 1 light will be on (where the speed is not displayed during the operation and is displayed when completed).
5. After completing all operations, stop the machine.
4、 Add temporary counterweight
1. Add a temporary counterweight block of known weight at any edge of the stopped impeller, which will be the 0 ° angle of polar coordinate balance and the first point of component balance (note: the counterweight should be fixed on the same diameter as the counterweight).
2. Start the motor and wait for the impeller to reach a certain speed and stabilize, then press the start button START.
3. After starting, the speed is also not displayed, and the actual waveform height and imbalance angle are displayed 5 times in the indicator. When the operation is completed, the speed is displayed, and the TEST 1 light flashes (if the TEST 1 light does not flash, it indicates that the temporary counterweight is too light. In this case, a larger temporary counterweight is added and the operation is restarted).
4. After stopping the balancing rotor, remove the temporary counterweight. The number 1.00 is displayed in the height column of the unbalanced waveform, and "1" flashes. Enter the temporary counterweight value accurately at its position, enter it with the setting key, and confirm with the ENT key.
5. After entering the temporary counterweight value, the balance angle and weight of the counterweight are displayed on the operation panel.
5、 Adding balance weights
1. According to the rotation direction of the rotor, with 0 ° as the reference, find the position to increase the balance weight according to the balance angle, and weld the balance weight firmly (note: the weight of the welding rod used should be considered when welding temporary and balance weights on the impeller).
2. After completion, start the motor and measure the vibration value. If it is ideal, complete it. If it is not ideal, repeat the operation.
The on-site dynamic balance instrument is composed of a host, cables, sensors and magnetic seats, speed sensors and brackets, etc. For different rotating workpieces, select a suitable dynamic balancing machine to measure the corresponding imbalance correction. For beginners, the on-site dynamic balance instrument with automatic diagnosis and navigation functions is much simpler to operate.
On site dynamic balance instrument
What precautions should be taken before using the on-site dynamic balance instrument, and what are the preparation works? Huake Zhichuang Dynamic Balance Technology Master shares the operation steps of the on-site dynamic balance instrument.
1、 Preparation work
1. One movable multi hole socket (220V power supply);
2. One electric welding machine;
3. Temporary and formal weight blocks (temporary weight of about 50g, formal weight of about 500g);
4. A precision electronic balance.
2、 Preparation before testing
1. Install the speed probe on the magnetic base bracket, attach a reflective sheet at the measurement point of the measured balance rotor, and connect the vibration probe with a cable. Install them on the side planes of the front and rear bearing seats (note: the reflective sheet should be firmly attached to the rotor to avoid throwing it out and injuring people).
2. Connect the power cord to the host, speed probe, and vibration probe.
3. Turn on the machine and adjust the position and sensitivity between the speed probe and the balance rotor appropriately. The distance between the speed probe and the reflector is about 5mm, which is the position when the red and green lights are on.
4. After starting up, enter the initial mode and select single-sided balance. Press the mode key MODE to display 1PL, then press the confirmation key ENT to confirm. At this time, the INIT light should be on. If other lights are on, press the CAN button for 3 seconds to reset and then select single side balance again.
3、 Initialization operation
1. After starting up, check the lights and indicators on the operation panel (INIT light on).
2. Check if the balanced rotor is in its initial state without temporary weights and balanced weights.
3. Turn on the motor and drive the rotor to rotate. By checking the speed indicator (digital display), press the start button when the speed reaches a constant state.
4. During the operation, the actual waveform height and imbalance angle are displayed 5 times in indicator 1 # area. When initialization is completed, the TEST 1 light will be on (where the speed is not displayed during the operation and is displayed when completed).
5. After completing all operations, stop the machine.
4、 Add temporary counterweight
1. Add a temporary counterweight block of known weight at any edge of the stopped impeller, which will be the 0 ° angle of polar coordinate balance and the first point of component balance (note: the counterweight should be fixed on the same diameter as the counterweight).
2. Start the motor and wait for the impeller to reach a certain speed and stabilize, then press the start button START.
3. After starting, the speed is also not displayed, and the actual waveform height and imbalance angle are displayed 5 times in the indicator. When the operation is completed, the speed is displayed, and the TEST 1 light flashes (if the TEST 1 light does not flash, it indicates that the temporary counterweight is too light. In this case, a larger temporary counterweight is added and the operation is restarted).
4. After stopping the balancing rotor, remove the temporary counterweight. The number 1.00 is displayed in the height column of the unbalanced waveform, and "1" flashes. Enter the temporary counterweight value accurately at its position, enter it with the setting key, and confirm with the ENT key.
5. After entering the temporary counterweight value, the balance angle and weight of the counterweight are displayed on the operation panel.
5、 Adding balance weights
1. According to the rotation direction of the rotor, with 0 ° as the reference, find the position to increase the balance weight according to the balance angle, and weld the balance weight firmly (note: the weight of the welding rod used should be considered when welding temporary and balance weights on the impeller).
2. After completion, start the motor and measure the vibration value. If it is ideal, complete it. If it is not ideal, repeat the operation.
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