To prevent significant damage to machines and ensure timely maintenance, it’s essential to monitor their condition closely. Typically, the state of a machine or its parts can be accurately assessed by analyzing their vibrations in terms of type and magnitude. A machinery diagnostic system enables the simulation of specific types of damage and investigates their impact on vibration patterns. The core unit facilitates various vibration measurement exercises, including displacement, velocity, and acceleration in both time and frequency domains. It also supports field balancing of rigid rotors and shaft alignment practices. Key components of this unit include mechanical elements like clutches, bearing blocks, and rotors mounted on a shaft, along with a drive motor capable of variable speed via a frequency converter and tachogenerator. The system is controlled and monitored through a display unit providing digital readouts for power output and speed. The motor’s base plate is mounted on a carriage to allow precise alignment, supported by a large aluminum base plate with locating slots for easy and accurate assembly of components. Safety during operation is ensured by a transparent protective cover, which also offers clear visibility of the system during experiments. All parts are organized systematically for efficient measurement and evaluation. A computerized vibration analyzer (sold separately) is necessary for comprehensive data analysis and is available separately.
Experiments
- Overview of methods for measuring vibrations in rotating machinery systems
- Principles of measuring vibrations in shafts and bearings
- Key variables and parameters involved
- Types of sensors and measurement devices used
- Impact of speed and shaft configuration on vibrations
- Impact of sensor placement on measurement accuracy
- Types of sensors and measurement devices used
- Balancing techniques for rigid shafts in practical settings
- Effects of motor and coupling alignment on system performance
- Interpretation and comprehension of frequency spectra
- Application of computerized vibration analysis tools (optional)
Specifications
- Central component of a machinery diagnostic training system
- Sturdy metal base plate featuring slots for securing work pieces
- Motor drive with adjustable speed controlled by a frequency converter
- Digital display showing real-time speed and power readings
- Two unbalanced flywheels equipped with interchangeable balance weights
- Two shafts: one short, one long
- Bearing blocks with roller bearings that are interchangeable
- Mounting holes provided for vibration sensors
- Includes both flexible claw and Controlflex ncouplings
- Motor allows for oblique and transverse alignment
- Transparent protective cover with safety features for secure operation
- System designed for component stack ability
