Identify Shafts Miss-alignment and the Methods of Shaft Alignment
Engineering and Technical Programs
Introduction
This course discusses the importance of alignment, how to: correct soft
foot, check runout, align two pieces of rotating machinery using dial
indicators, and to review all the currently used alignment equipment and
techniques (e.g. lasers and electromechanical systems). It also discusses
the types of shaft misalignment.
By the end of the course, participants will be
able to:
- Being able to identify machine components that
have failed due to misalignment.
- Understanding the common types of shaft
misalignment.
- Learning the steps to prepare for a shaft
re-alignment.
- Being able to detect and correct soft foot
conditions.
- Learning how to use basic tools to achieve
rough alignment.
Training Methodology
A highly interactive combination of lecture and discussion sessions will be managed to maximize the amount and quality of information, knowledge and experience transfer. The sessions will start by raising the most relevant questions, and motivate everybody finding the right answers. The attendants will also be encouraged to raise more of their own questions and to share developing the right answers using their own analysis and experience.
Course Outline
Day 1:
- Introduction to Shaft Alignment.
- Types of misalignments.
- Alignment tolerances.
- Alignment process overview.
- Alignment procedure.
- Pre-alignment.
- Precision alignment.
- Alignment methods.
Day 2:
- The importance of shaft alignment as well as
the effect of alignment.
- The benefit of precise shaft alignment to the
rotating machinery.
- Shaft Alignment: Calculation for Horizontal
Shaft Alignment.
- Step-by-step approach to use dial indicator in
alignment methods.
- Reverse dial indicator method.
- Rim and face indicator method.
- Alignment correction for machines is not
subject to thermal growth.
- Pre-alignment.
- Base preparation for Pre-alignment.
- Procedures and precautions for taking accurate readings and measurements.
- Machinery soft foot - how to do measurement, nalysis and correction.
- Measuring runs out due to coupling
eccentricity and bent shaft.
- How much run out is too much?
- Rough Alignment.
- Procedure of rough alignment.
- Preparation for alignment challenge.
- Dynamic Movements.
- Thermal growth effect.
- Determining final desired alignment reading
for machines subject to thermal growth.
- Alignment correction for machines subject to
thermal growth.
Day 4:
. Reverse Dial Method Exercise
- Applying graphical drawing/techniques.
- Learn to do adjustment from graphical drawing.
- Finding the optimum moves when bolt bound or base
bound.
- Finding the optimum moves when there is
thermal effect.
- Pre-alignment checks.
- Soft foot determination and correction.
- Fixture assembly.
Day 5:
- Taking and recording accurate readings.
- Compensating for thermal growth in one or both
machines.
- Precision movement of machinery.
- Precision Shaft Alignment: Laser
Alignment-Tools and Techniques.
- The tools and equipment.
- Setting up procedure.
- Taking the reading procedure.
- Case
studies and Overview of shaft alignment practices.
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