Motors and Generators:Belts, Gears, and Pinions

Belts, Gears, and Pinions

Belts

In most industrial organizations, installation, adjustment, inspection, and care of belts is the responsibility of a specially trained individual or group. The application of belts involves alignment and belt tension, which affect bearing operation. Maintenance personnel must report belt alignments

that seem inaccurate, tensions that appear excessive, and splices that look doubtful. Drives having upward belt tension may be questioned. Bearing loads on sleeve-bearing motors should not be against that portion of the bearing where the oil is fed into the bearing. Action should be taken to pro- tect the electrical apparatus when there is evidence of belt-produced static.

Gears and Pinions

Gears and gear trains are among the principal sources of noise and vibration. In designing such mechanisms, the manufacturer strives for the best tooth term to give the least amount of whip and backlash, with the gear center so located that the teeth mesh at the correct pressure points.

It is essential, therefore, that the bearings be so maintained that these gear center distances do not change. Correct lubrication of gears is essential to keep down the wear of teeth. A gear with worn teeth, even though it appears to have considerable life left in it, should be replaced to keep vibration and noise to a minimum.

Related posts:

The cage induction motor.
Materials for electrical engineering:Introduction and Magnetic materials.
Direct-Current Voltage Testing of Electrical Equipment:DC Voltage Testing of Insulation
Direct-Current Voltage Testing of Electrical Equipment:Evaluation of Test Data Readings
Testing and Commissioning of Protective Relays and Instrument Transformers:Winding and Lead Resistan...
Power Quality, Harmonics, and Predictive Maintenance:PQ Solution and Power Treatment Devices
Transformers:Loadings
Starting and generating systems:Solenoids
FUEL CELLS:HYDROCARBON GAS REFORMATION
NUCLEAR POWER
Thermal Loading of Several Multilevel Converter Topologies for 10 MW Wind Turbines Under Low Voltage...
The Current Situation and Perspectives on the Use of Solar Energy for Electricity Generation:France
Emerging SMES Technology into Energy Storage Systems and Smart Grid Applications:Development Status ...
Resiliency Analysis of Large-Scale Renewable Enriched Power Grid: A Network Percolation-Based Approa...
Impact of Large Penetration of Correlated Wind Generation on Power System Reliability:Results

Leave a comment

Your email address will not be published. Required fields are marked *