Shaft Alignment, Dynamic Balancing Techniques & Measurin
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COURSE DATES AND LOCATIONS
DATE
Duration
LOCATION
FEES
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INTRODUCTION
This course will equip you with the knowledge and skills, the machines that have been precision aligned run longer, and cost less to run. Alignment greatly reduces the life of bearings, seals, shafts and couplings. Also, Machines that have been precision balanced run longer, and cost less to run. Unbalance causes fatigue and reduces the life of bearings and can make looseness and resonance conditions far worse. This course will equip you with the knowledge and skills so that you can use a vibration analyzer/balancer, or a simple sheet of graph paper and protractor, and balance a machine – without even having to remove it from the plant. You will learn how to recognize unbalance and set up the balance job for a successful balance.
so that you can use a dial indicator tool or laser alignment system to precisely align two components together. You will learn how to recognize misalignment and successfully set up the alignment job. After reviewing the important reasons for
performing shaft alignment, we will discuss the pre-alignment checks and corrections, including how to identify and correct soft foot. The operation of dial indicators, and cover the rim-face method and reverse-dial method will also be discussed. Not only will we explain and demonstrate the process, also how alculations are performed will also be discussed.
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COURSE OBJECTIVES
At the end of this course you will be able to:
- Explain how they work and understand how to measure run out on mechanical couplings and machinery shafts.
- Providing the participants with thorough understanding, brief about construction and improve their capabilities and skills required to identify and measure misalignments in different machines and their causes and how to correct or monitor them.
- Gaining Knowledge of measuring
- Providing the Participants Good Information on how Shaft Misalignment causes Failures in Equipment’s.
- Having a detailed understanding of Advanced Time and Frequency Analysis Techniques and have acquired knowledge of Accurate Diagnosis of Antifriction Bearings.
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COURSE AUDIENCE
This course is made for
- Maintenance Engineers , Highly Qualified Technicians who working in Maintenance Department to give them the Practical Knowledge to achieve accurate alignment and balancing for Shaft of Rotating Equipment Machinery.
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COURSE OUTLINE
Day One
Introduction
Soft Foot Checks and Corrections
• Different types of Soft Foot
• Rocking Soft Foot
• Short Foot – Parallel Air Gap
• Even Foot
• High Foot
• Bent Foot
• Squishy Foot
• Induced Soft Foot
Importance Soft Foot
• Why is Soft Foot Important?
• Shaft Fatigue
• Bearing Distortion
• Impact on the Alignment Task
Day Two
Testing for Soft Foot
• Testing for Soft Foot
• Taking Soft Foot Measurements
• Recording Results
• Using Dial Indicators to measure Soft Foot
Correcting Soft Foot
• Correcting Rocking Soft Foot
• Short cut number One: The Casanova Method
• Short cut number Two: The 80% Rule
• Using Feeler Gauges
• Using a “Stair” of Shims
• More Complex Shim Patterns
• Detecting and Correcting Induced Soft Foot
• Mysterious Soft Foot
Day Three
The Rim-Face Dial Indicator Method
- Accuracy Issues
- Setup Problems
- Axial End-Float
- Rim-Face Measurement Procedure
- Compensate for Bar Sag
- Alternative Method
- Determine the Alignment Corrections
- Performing the Calculations
- Computing the Offset
- Computing the Angularity
- Computing feet movements
- Shim calculations
- Move calculations
- Example calculations
- The graphical method
The Reverse Dial Method
- Reverse Dial Procedure
- Compensate for Bar Sag
- Performing the Calculations
- Computing the Offset
- Computing the Angularity
- Computing feet Movements
- Shim and move Calculations
Day Four
Laser Alignment Systems
- The basic components in a laser alignment system
- Benefits of laser alignment systems over dial indicators
- How do laser alignment systems work?
- Using a Prism – Return Beam Method
- Beam Splitter – Single Beam Method
- Twin Emitter/Detector Pairs – Dual Beam Method
- Using a horizontal beam and a vertical detector
Day Five
Performing Laser Alignment Measurements
- Performing the measurements
- The 3:00-12:00-9:00 method
- Swept measurements
- Getting the results
- Aligning spacer shafts or jackshafts
- What if you can’t rotate one shaft?
- What if the shaft can’t be rotated easily?
- What if you can’t rotate either Shaft?
- Limitations of Laser Systems
- Backlash
