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Vibration Analysis Training System-VALENIAN-PT400
This simulation platform is designed for learning common mechanical faults such as dynamic balance, misalignment, belt faults, belt tension adjustment, shaft bending, foundation looseness, mechanical shaft friction, gear faults, etc. This simulation platform generates vibrations based on the degree of defects and can simulate vibration phenomena caused by imbalance and misalignment. In addition, it is an ideal choice for training balance and axis alignment methods to correct imbalance and misalignment faults.
Product Features:
To achieve imbalance, 36 holes were drilled in the disc, each with an angle of 10 °, allowing any unbalanced mass to be added at the desired location.
The misalignment mechanism is designed to move the motor back and forth freely, allowing it to set defects without disassembling the machine.
Vibration Analysis Training System
The PT400 rotor gear comprehensive fault simulation experimental platform is the best educational simulation platform for learning bearing fault diagnosis, gear damage characteristics, belt transmission characteristics, as well as conducting imbalance and misalignment simulations, and calibration methods.
Replace the faulty bearing
Currently, there are five types of faulty bearings that can be replaced, namely bearing inner ring fault, bearing outer ring fault, bearing ball fault, bearing cage fault, and comprehensive bearing fault.
Currently, each faulty bearing has been assembled into a bearing seat engraved with letters. By replacing the bearing seat as a whole, different faulty bearings can be replaced.
3. Replace the most convenient disassembly position with the secondary shaft, near the bearing seat of the impeller.
4. Use an Allen wrench to loosen the two fixing bolts of the bearing seat, and slide the bearing seat and bearing out parallel from the shaft for replacement.
1. Inner ring fault of bearing (FBI-20)
The inner ring defect bearing is marked with the letter "I" on the bearing ring. The figure shows a man-made defect with a 0.35mm crack on the inner ring. Users can decide and order crack size (0.2-1 millimeters) or crack type.
Fault characteristic frequency :4.9478x
2. Bearing outer ring fault (FBO-20)
The outer ring defect bearing is marked with the letter "O" on the bearing ring. The figure shows a man-made defect with a 0.35mm crack on the inner ring. Users can decide and order crack size (0.2-1 millimeters) or crack type.
Fault characteristic frequency : 3.0522x
3. Bearing rolling element failure (FBB-20)
Ball bearing failure, marked with the letter "B" on the bearing ring, with a 3mm peeling pit on the ball.
Fault characteristic frequency :
2x fault characteristic frequency :3.983 x
4. Comprehensive bearing failure (FBC-20)
The comprehensive faulty bearing is marked with the English letter "C" on the bearing ring.
The bearing failure is artificially caused, with 0.35mm cracks on the inner and outer rings.
The fault frequency includes both inner ring characteristic frequencies and outer ring characteristic frequencies.
5. Bearing cage failure (FBT-20)
Mark the bearing ring with the English letter "T". The frequency of cage or cage failure is the rotational speed of the ball or roller cage components. It is a type of faulty bearing that can simulate bearing cage faults, causing low-frequency modulation in bearing vibration.
Fault characteristic frequency: 0.382 x
4： Replacement of faulty belt
When leaving the factory, the test bench is equipped with a good normal belt, and then comes with a faulty belt with worn or missing teeth for replacement during the experiment.
2. First, remove the belt tensioning device, and then remove the belt from the pulley.
3. Then replace the faulty and worn belt.
4. Reinstall the belt tensioner and adjust the support screws according to the tension requirements to adjust the tension.
5： Bending shaft replacement
1. Remove the belt tensioning device, remove the pulley on the drive shaft, loosen the motor coupling fastening bolt, loosen the dynamic balance rotor disk fastening screw, loosen the two sets of bearing seat bottom corner bolts without removing them, and then extract the drive shaft from the bearing seat.
2. Install the bent shaft to the position of the active shaft, reverse step one, and tighten all bolts.
6： Gear transmission replaces pulley transmission
1. Remove the protective cover of the experimental platform.
2. Remove the belt tensioning device, remove the belt, loosen the belt pulley tightening stop screw, remove the belt pulley on the driving shaft, and remove the driven belt pulley on the auxiliary shaft.
3. Replace the installation bearing bases of the active shaft and auxiliary shaft with integrated bearing bases.
4. Then install the small gear onto the drive shaft, install the large gear onto the secondary shaft, and tighten the stop screw of the gear.
5. Currently equipped with four small gears, three faulty gears, one in good condition and one normal large gear, among which three faulty small gears are missing teeth fault, gear wear fault, and gear crack fault. The replacement experiment requires the replacement of different faulty gears.
Integrated bearing base
Attention: Due to the large vibration of open gears, the equipment speed should not exceed 500rpm during gear transmission operation. When installing gears, do not forget to install the key and tighten the stop screw.
7： Dynamic balance test
Currently, there are two dynamic balancing rotor disks installed on the experimental platform, which can perform double-sided dynamic balancing simulations. The rotor disks have 36 M4 threaded balancing holes.
When leaving the factory, the dynamic balance status of these two rotor disks is good, and screws can be installed at different counterweight angles to simulate and demonstrate poor dynamic balance.
8： Mechanical Friction Experiment
1. Mechanical friction fault simulation, friction type is contact sliding friction, set near the input shaft of the reducer. Use a wrench to loosen the outer hexagon bolt first, and then use an inner hexagon wrench to tighten the friction screw. Depending on the severity of the friction, close the outer hexagon bolt to the shaft position according to the situation, and tighten it together.
9： Inaccurate simulation
1. The motor mounting base is equipped with centering adjustment screws. The left and right adjustment set screws can be adjusted according to the test needs.
10： Basic loosening fault simulation
1. Loosen the fixing bolts of the motor base to a certain extent, and then start the experimental bench for testing. According to the testing requirements, determine the severity of the loosening of the foundation bolts.
PT400 |
Professional Training System for Vibration Analysis |
1 drive motor（370W） 1 inverter 1 coupling 4 support bearings(normal bearings) UCPH204 2 shaft （20mm） 1 foundation base 1 control unit(Speed adjustment knob) 1 Speed display instrument 5 Faulty bearings (Inner race fault, outer race fault, cage fault, rolling element fault, comprehensive fault) 1 power line 1 curved shaft 2 Dynamic balancing rotor disc 1 vane wheel 2 normal gears 100 tooth big gear and 50 tooth small gear 3 gears gear wear, broken gear, missing gear 1 Gear component installation base 2 belt normal and fault 2 pulleys 1 Safety protective cover 1 Installation and disassembly tools |
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