Face reading readings obtained with a dial indicator as both shafts are rotated when the centerline of the dial indicator stem is set parallel to the shaft centerline. Self adjusting miter groove bar with leveling screws and spring plungers for perfect fit in your miter slot. Performance tasks under the supervision of the instructor, the trainee should be able to do the following. Reverse dial indicator to laser alignment conversion formula. Shaft alignment calculator free download and software. Adjust the oscillator linkage to position the dial indicator tip approximately one 1 inch from the edge of the platen. Hello, can someone please help convert an alignment target to laser alignment thermal growth value. Basically i am doing an alignment for a gearbox to compressor. Jan 03, 2021 to read a dial indicator, start by mounting it on a stand to stabilize it and calibrating the dial by turning the outer face until the hand points to 0.
Reverse dial indicator to laser alignment conversion. These packages greatly expedite the alignment process. For vertical and horizontal rim readings, shaft offset is 12 of the total indicator reading tir. Readings obtained with a dial indicator as both shafts are rotated when the centerline. The shaft alignment training course provides a highly practical knowledge of the use of dial gauge in coupling alignment. Vemc presents pump motor alignment process with help of dial gauge method for accurate and smooth functioning of machines in your manufacturing units.
How to properly use the dial gauge to determine zposition. A popular method used for years and is still in use today is the rim and face method. The machine is already centered and aligned to zero almost. The graphical illustration of a single dial indicator sweep is. Face dial indicator readings and angular misalignment. Dial indicator is a very important comparator used in mechanical industrial measurement applications. Compensate for sag by dialing in the amount of indicator bar sag as a positive value at 12. The shaft alignment means adjustment of the relative position between two connected machines, e. The following safety and common symbols may be used in this manual and on the equipment. Again, reverse alignment is the measurement of one axis to the relative position of an opposing axis. Pdf dial indicator alignment procedure hussain vasadwala. If the face dial contacts the coupling face directly, ensure the plunger of indicator contacts the coupling near its outer edge.
As figure 6 shows, readings are taken at four locations designated as a, b, c and d. Dial indicator alignment procedure the procedure for doing reverse dial indicator alignment is not a difficult one. Join the grabcad community today to gain access and download. Dial indicator the dial indicator is a precision measuring tool that measures relative distances. The most negative number dial indicator reading can be at any location within your 360 rotation. The two vbrackets come assembled with chains that will allow mounting on shafts up to 175 mm in diameter, 450 mm with optional extension chains. Find out more about what makes your world spin more trouble free math giving you headache. Number what is shaft alignment 6 a definition 6 machine catenary 7 operation above critical speed 8 expressing alignment 10 alignment parameters 10 angularity, gap and offset 11 short flexible couplings 14 spacer shafts 15 how precise should alignment be. To view a complete list of case studies and tools availabl. The dial indicator is great for checking alignment and runout. Ensure fixtures are mounted at a position where rotation is possible. Sag does not effect the accuracy of horizontal rim readings. Reverse dial indicator alignment method vylywee2xe4m.
The plunger is a spring loaded part that can be depressed into the case causing the dial. Maintenance best practices jalan sri perkasa 2 for. This method produces acceptable results, but is less accurate than the reverse dial indicator method covered in this application note. When taking readings, the dial indicator should be returned to location a to be sure the indicator reading returns figure 4. Rp final measurement m measurement item unit 0 deg cw 90 deg cw 180 deg cw 270 deg cw max tolerance angular misalignment motor mm angular misalignment pump mm offset alignment motor mm. Review recent maintenance records for valuable clues and begin safe lockout procedures. A dial indicator should be mounted on the machine support with the indicator stem resting on the sole plate. The maximum and minimum values of alignment tests are compared with mini. Dial indicators are measuring devices designed expressly to measure relative position. If i can convert the reverse dial values to angle and offset values, i can then insert this as thermal growth values to my laser kit. Reverse dial indicator method often requires the machines to be uncoupled to perform alignment. Alignment system capable to do reverse indicator alignment, less dial indicators. Shaft alignment by dial test indicator dti horizontal alignment parallel shaft alignment by dial test indicator dti vertical alignment angular pump motor the indicators are zeroed on the top and read at the bottom record the indicator reading and consider the sag compensation by subtracting it from the recorded reading move the motor to.
The plunger is a spring loaded part that can be depressed into the case causing the dial s needle to move clockwise. Dial indicator mounting bar measures 34 x 34 x 512, miter groove bar measures 38 x 34 x 614. Z to the current z shown in the software and type it in as the new position. Rotordynamic analysis package dial gauge indicator alignment kit. The included alignment frames 58 thick are precisionmilled from rigid and durable 6061t6 aircraftgrade aluminum, ensuring flat and square surface contact between the frame and the shaft so your dial indicator readings are precise.
Draw centerlines, and finally export a pdf report of your alignment run. This is a potential source of confusion for the uninitiated. Dial indicator alignment basics alignment knowledge. Shaft alignment training course ppt presentation and. Once the dial indicator is calibrated, press the spindle on the bottom against the item youre measuring. Dial indicator alignment basics dial indicators are measuring devices designed expressly to measure relative position. The face indicator is used to measure coupling gap differences. A dial indicator is an instrument with either jeweled or plain bearings, precisely finished gears, pinions, and other precision parts designed to produce accurate measurements. The plunger is a spring loaded part that can be depressed into the case causing the dial to move clockwise. This measurement will be made by using dial indicators that measure in 0. Accuracy of dial indicator readings there is a quick way to check the validity of dial indicator face alignment readings.
Before obtaining alignment measurements, determine dial indicator bar sag of the rim dial. The dial should be facing the front of the machine figure 4. Readings obtained with a dial indicator as both shafts are ro. Pdf basic shaft alignment workbook for industrial rotatin. Adjust dial indiactor so anvil can be fully depressed without touching the gauge slide and tighten set screw in casting. To view a complete list of case studies and tools available for free, visit library. The shaft alignment and couplings manual introduces the basics of shaft. Basic shaft alignment workbook for industrial rotatin n1achincrv. Step 4 precision alignment with a dial indicator youtube. They have give the desired final alignment values in reverse dial indicator method.
Precision alignment with no manual input of data and no graphi. Watch the indicator as the holddown bolts are loosened. When performing an alignment whether using dial indicators or laser op tical systems. Let us show you the theory behind the magic, or how the app is doing the math for you fixturlaser laser kit simplified laser shaft alignment making precision shaft alignment available for everyone. The dial indicators come from the manufacturer precalibrated, and must be rechecked on a regular schedule. Dial indicator marking the number 100 and facing the front of.
Data io connector power also may be provided through the data io connector, for special fixturing or applications where the indicator is integrated with another piece of equipment a ripple free 5 vdc 4. Dial gauge alignment procedure in covered with detailed animation. Photograph 1 shows a dial indicator in the standard orientation. If you have determined your most negative number is at 8.
Several equipment alignment methods, especially the reverse dial indicator method, which is the principle used in laser alignment is covered in explicit detail. The use of dial indicators for the vast majority of shaft alignment tasks where a. Perform reverse dial indicator alignment, using a graphical alignment chart. To determine vertical coupling gap difference, the face indicator is set to zero at a vertical position 12. The kit, shipped in a durable fitted case, includes 3 pairs of dial indicator. Equipment shaft alignment training course for maintenance coupling alignment, dial gauge, laser, reverse dial indicator, peripheral method, rim face, straight. The primary parts of a dial indicator are the face or dial, the case, and the plunger.
Reverse alignment module 1550109 annotated instructors. Jul, 2016 accuracy of dial indicator readings there is a quick way to check the validity of dial indicator face alignment readings. Alignment system capable to do both reverse indicator and rim and face alignment, less dial indicators. The alignment training is suitable for technicians undertaking machine alignment, coupling alignment, motor alignmnet, pump alignment, etc. Create a pdf report directly when measurement is complete it is pos. Whether youre using a laser alignment system or dial indicators, one set of. Plot the measurement of the dial indicator 1 in line with point 1. But i have a data sheet from oem with target values or value i must reach, this requires the machine to be misaligned a bit to compensate for thermal growth.
Shaft alignment and couplings, model 46100 labvolt. Rotate the indicator bezel so 100 is at the six oclock position figure 4. Face dial indicator readings and angular misalignment the face dial indicator is mounted parallel to the shafts with the plunger making axial contact on a coupling hub. Use it to measure the difference in distance to two or more locations.
A rough alignment is necessary due to the range limitations of the dial indicators. First, zero the dial indicator readings on the side of the machinery shafts that represents the direction at the top of your graph paper. Produce pdf reports directly from the display unit and save to usb. Perform reverse dial indicator alignment, using the mathematical equation. Works on shaftcoupling diameters from 78 up to 912. Alignment system capable to do rim and face alignment. With a loadonpad design, figure 1 the shaft is free to laterally within bearing clearance, and alignment data is difficult to obtain without temporary bearing shims to stabilize the sham with a loadbetweenpad design, figure 1 b, the shaft remains stable during the alignment procedure. Dial indicator principle, diagram, working, application. Misalignment should be checked in the following manner.
Alignment system capable to do reverse indicator alignment. The grabcad library offers millions of free cad designs, cad files, and 3d models. Reverse dial indicator alignment pdf if you are looking for information about an unfamiliar phone number then you need special service reverse phone lookup, our partner offers excellent service. The new fixturlaser dials app guides the user through the dial indicator shaft alignment process.
Step 1 familiarize with terms, techniques and procedure. The easy to read, 2 hand indicator gives you readings in. The manufacturers technical manual should be consulted to obtain this setting. This manual began as a set of paper copy notes at dli engineering. There are several steps which need to be taken for a successful alignment job. A dial indicator figure 9 can assist in determining alignment within 0. With the standard equipment and completely normal set up on the machine. Alignment system capable to do rim and face alignment, less dial indicators. Maintenance best practices jalan sri perkasa 2 for rotating.
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