Static and Dynamic Balancing Study
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Machine Elements and Theory of Machines
Static and Dynamic Balancing Apparatus
This apparatus is for demonstration of simple balancing techniques.
It consists of a balanced steel shaft mounted on two self-aligned ball bearings on a rigid frame with rubber footings to minimize vibration. Four different balance masses, which can be easily clamped on any position on the shaft are provided.
For static balancing, an extension shaft with a pulley is fitted to one end of the shaft. Two weight containers with a cord are wound around the pulley. Steel balls are then added to one container until the shaft is in equilibrium to determine the maximum moment of each balance mass. An angular scale is attached to the other end of the shaft and a linear scale is attached along the frame parallel to the shaft to measure angular and linear positions of each mass.
For dynamic balancing, the shaft assembly is driven by a fixed speed motor via a belt. In the case of unbalance, the shaft will vibrate and the vibration is absorbed on the rubber footings. A safety guard with transparent front is provided.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Static balancing of the system using moment polygon.
- Dynamic balancing of the system by calculating positions of the masses along the shaft and by resolving and taking moments
- about one end of the shaft. Demonstration of a balanced and unbalanced system by actual running of the apparatus.
TECHNICAL DATAShaft length 200 mm Balance masses 4 different weights Baskets with cord 2 Steel balls 1 lot Software for data display and analysis by computer (separately supplied). Power supply 220V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews) -
Machine Elements and Theory of Machines
Static and Dynamic Balancing Machine: Computer interface
The machine is used for studying of balancing principles.
A rotor shaft is connected to the motor by a double universal joint and rests on two supports with adjustable distance between supports. Each support holds the shaft in place by three bearings with crest. Two standard rotors and two radially slotted rotors are provided for various cases of balancing. The unbalance forces are picked up by two vibration transducers and converted to digital signals. The speed is adjusted by an inverter and speed signal is provided by a sensor. The magnitude and angle of the unbalance for each plane is analyzed and displayed on a computer (separately supplied). The vibration and speed transducers are removable for field use. A note book computer is recommended for field use but is not included in the scope of supply. A transparent cover is provided for safety.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Single plane balancing.
- Two plane balancing.
- Balancing machine calibration.
- Single plane field balancing.
- Two plane field balancing.
TECHNICAL DATABalancing bed – Maximum rotor diameter 250 mm – Maximum working shaft length 200 mm Standard rotors: – Quantity 2 Slotted rotors: – Quantity 2 Balancing weights – Calibrated bolts 1 lot – Calibrated washers 1 lot – Calibrated nuts 1 lot Motor 0.75 kW. Speed control 0.4 kW, inverter Speed measurement Speed sensor Vibration transducers 2 Computer interface unit Software for both laboratory and field balancing for data display and analysis by computer (separately supplied). Power supply 220 V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews)