Hot alignment in the past, a hot alignment check may have been used to check the accuracy of the cold alignment procedure. The procedure for doing reverse dial indicator alignment is not a difficult one. The rim and face alignment method is one of the most common alignment techniques used in industry. The fixtures should include an assortment of rods to span various coupling lengths. Shaft alignment rim and face contact ihrdc sales for corporate purchases add to cart price. After completing this course, participants should be able to describe the basic types of misalignment, describe general preparations for a rim and face shaft alignment procedure, and explain how to use the rim and face shaft alignment procedure. Piotrowski s allowable misalignment guidelines will be discussed with this. While this final adjustment is a vital part of the overall procedure, it is not the entire procedure. Equipment required c universal base assembly, model 46603 c motor package, model 46609 c couplings shafts panel, model 46610 c pillow block bearings panel, model 46611 c alignment and couplings package, model 46615. Reverse alignmentunderstanding centerline measurement by c. The vblock mounting clamps are 78 wide and supplied with chain to accommodate shafts from.
Shaft alignment is a method or procedure by which shafts of machines such as motors and turbines are connected to a generator or pump in proper alignment. Try to put the stem of dial gauge perpendicular to the surface of coupling. What is the formula of rim and face coupling alignment. Proper alignment is the largest factor in determining the life of bearings, seals and couplings. Ppt alignment powerpoint presentation free to download. It also is the only method that can be used when rotation of both shafts cannot be accomplished. End float, because it will affect the face reading.
To obtain a complete set of asfound readings, perform the steps below. When these steps are performed, it is often found that the data is either not repeatable andor not valid. For the rim and face procedure of alignment, what are the order of steps required to properly use. This method produces acceptable results, but is less accurate than the reverse dial indicator method covered in this application note. For maintenance personnel in drinking water and wastewater. When using the rim face method, one common source of error. Reverseface reverserim more familiarly called reverse dial method rimface, and laser a good reference in the discussion of alignment is a book by john piotrowski called shaft alignment handbook ref. The final laser system results show the vertical and horizontal alignment to be in tolerance and once entered into the laserdials app. For the alignment to be successful, both the equipment and the overall system must be property. When these steps are performed, it is often found that the data is either not repeatable and or not valid. For example, the only correct way to express shaftalignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this. Rim and face alignment formula method tamil rotating. A popular method used for years and is still in use today is the rim and face method.
Jan 16, 2017 in this video we will describe alignment of pump and motor alignment system, alignment tool, alignment machine, alignment chart, alignment problem, alignment using dial indicator,shaft coupling. A practical guide to pulley alignment plant services. For the rim and face procedure of alignment, what are the order of steps required to properly use this method. Measuring and documenting asfound misalignment conditions. Selection and use of a commercial package designed to accommodate a variety of shaft diameters is recommended. Another measurement is taken on the face of the coupling to determine shaft angularity. Fixture mounting procedures are obviously dependent on the specific type of hardware being used. Laser method alignment tolerances chart angular misalinment milsinch 0. Facerim method two indicator method three indicator method reverse indicator method. The original function of a flexible coupling was to accommodate the small amounts of shaft misalignment remaining after the completion of a shaft alignment using a straight edge or feeler gauges. This interactive training unit is designed to familiarize trainees with the basic principles associated with measuring and correcting shaft. Shaft alignment methods explained bright hub engineering.
What cannot be ignored when using the rim and face method of alignment. If the face dial contacts the coupling face directly, ensure the plunger of indicator. This guide provides information for the implementation of good pulley alignment of beltdriven equipment including terminology, alignment methods. Alignment and couplings 5 objectives in this job, you will align two shafts using the reverse indicator method. A variety of shaft alignment fixtures are available for performing rimface alignment. Jan 29, 2014 final results showing a machine in alignment. When using a rimface method, one measurement is taken on the rim of the coupling to determine shaft offset. Pulley alignment guide precision alignment is an essential part of a proactive reliability program.
This method is usually used when laser alignment equipment is not available for use. There are several steps which need to be taken for a successful alignment job. The rim itself can vibrate excessively on the axle which could loosen the components which maintain the alignment. Shaft alignment industrial wiki odesie by tech transfer. Additionally, reverse dial alignment does not require removal of the coupling to collect data. If this is not corrected the effect could be that the belts slacken. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. It is followed by shaft alignment rim and face, and shaft alignment laser.
For a flexible coupling to accept both parallel and angular misalignment there must be at least two. As pictorially presented, it simply means the dial indicators were arranged, tightened, and adjusted to zeroes at the not shown opposite position, then rotated 180 and are now shown in the correct. If, on the other hand, you update your knowledge of shaftalignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused. For this training, you will perform the alignment with the shafts uncoupled and the indicators mounted in direct contact with the rim and face of the movable shafts coupling. This guide provides information for the implementation of good pulley alignment of beltdriven equipment including terminology, alignment methods as well as belt maintenance, storage and tensioning. Install coupling and check for rotational freedom of drive train if possible. When using the rimface method, one common source of error. Before beginning any alignment procedure, make sure driver power is locked out.
The rotating equipment machine shaft coupling alignment training course covers several alignment methods like straight edge alignment, rim face alignment, reverse dial indicator alignment procedure and the basic principle applied to laser alignment technique. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The two types of runout rim radial and face axial should be corrected until they meet tolerance before final alignment of the pulleys takes place. Shaft coupling alignmentprocedurerim and facemethod. This module teaches participants about the proper techniques for performing rim and face alignments. Converting laser alignment system readings to rim and face. Ever had to align a motor and gearbox assembly to a driven unit mounted upside down against a concrete ceiling. Refer to the diagram and key on page 9 of the manual for definitions. Specialty products company basic wheel alignment fundamentals. The rim and face alignment method is commonly used where space considerations would prevent the use of the cross dial or reverse dial methods. This could happen gradually and go unnoticed for awhile. This course is designed to familiarize participants with the basic principles associated with measuring and correcting shaft misalignment using the rim and face method.
Shaft alignment procedures rim and face alignment method the step by step procedure of rim and face alignment method is explained below. Unlike bearings, there are no published standards for alignment tolerances. An important understanding required is the confident use of dial gauges. This interactive training unit is designed to familiarize trainees with the basic principles associated with measuring and correcting shaft misalignment using the rim and face method. This method is often considered so complicated that many users have developed step by step worksheets, plotting boards, programmable calcula189 tors, and computeraided laser devices that can guide the aligner through the procedure without a real understanding of the funda mentals of alignment. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might result in.
What is the formula of rim and face coupling alignment answers. This manual provides instructions for the installation, operation, and maintenance of the goulds. Dial indicator method a rimface method b reverse rim method 3. After completing this course, participants should be able to describe the basic types of misalignment, describe general preparations for a rim and face shaft alignment procedure, and explain how to use the. Dial indicator method a rim face method b reverse rim method 3. Using offset and angularity to specify alignment targets. Shaft coupling alignmentprocedurerim and facemethod 22. For maintenance personnel in drinking water and wastewater facilities. However, factory tests have shown that the results of the hot alignment check are inconsistent. Rim and face alignment alignment in general isn t all pry bars, wedges, sledgehammers, shims, swearing, and sweat. In this training, we will focus on two dial rimface alignment and how to accurately determine shaft positions using calculation and graphing procedures. A practical guide to shaft alignment plant services. Visually check coupling, pipehangers, base bolts, coupling spacing etc.
A laser shaft alignment by ipspsds for rotary machine article pdf available in international journal of engineering and technology 44. In addition to correct alignment of the pulleys, the runout errors of the pulley should also be measured and corrected. Specialty products company basic wheel alignment fundamentals wheel alignment technology advances continuously with the introduction of new makes and models of vehicles, engines, transmissions transaxles, steering and electronic suspensions. The shaft alignment reverse dial class is the first in our shaft to shaft alignment series. A full 4wheel alignment will cost more than the other type because there is more work involved. Rim and face alignment the classic, most often described and used rim and face format is the one described here in figure 1 of this chapter. Pdf a laser shaft alignment by ipspsds for rotary machine. Rim and face alignment formula method tamil youtube. Oct 08, 2017 shaft alignment procedures rim and face alignment method the step by step procedure of rim and face alignment method is explained below. Would improved or refreshed skills in rim and face shaft alignment methods help. A variety of shaft alignment fixtures are available for performing rim face alignment. Other facts every driver should know about wheel alignments.
Two wheel alignment is quickly becoming obsolete and four wheel alignment is rapidly being incorpo. A short course on wheel alignment valley buick gmc. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or reference to the manufacturers of the machinery. This method often requires the machines to be uncoupled to perform alignment. The emphasis on alignment, however, is often focused solely upon the final adjustments of the equipment after installation and prior to startup.
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