Comprehending the reasons for machinery breakdown with motor shaft alignment equipment

The info to follow gives information on the function of motor shaft alignment and tolerance levels. There are various kinds of misalignment and causes of machine breakdown pointed out further in this piece of writing.

Atlas Rigging & Transfer
Address: 8556 S 4000 W,
West Jordan, UT 84088, United States
Phone Number: +1 801-566-2120
Website: atlasrigging.net

Transcript

2. Opening: The machinery along with its major parts must be installed in such a way that the design limits are not exceeded. The machinery which is installed misaligned doesn’t always mean poor motor efficiency. However, this really is more serious when the motor centerline and shaft system is out of position. Difficulties with Dealing with Motor Shaft Alignment Machines Advantages of Motor Shaft Alignment  Helps improve the tenor operation associated with rotary machinery.  Guarantees the effectiveness of the control is correct for all elements. Negatives of Motor Shaft Misalignment  Motor shaft Misalignment results in Vibration  Noise and coupling are major issues  Increase in bearing temperature  Premature bearing and malfunctioning of shaft. Three Basic Categories of Motor Shaft Misalignment: 1. Angular The problem with the angular error often relates poor alignment of the equipment (at the wrong angle). Setting for the centerline must be so each part or component crosses and avoids following a similar path. The slope between the machine and motor shaft should be
3. correct to avoid misalignment that could lead to major harm to the hardware components. 2. Parallel Misalignment If several centerlines correspond however do not share similar line, this can lead to parallel misalignment. The two plans of parallel misalignment are:  Shafts probably make up for horizontal side, displacing to the left or right  Shafts may have a vertical offset with alignment at different altitudes.  3. Combination Misalignment This is a mixture of the previously mentioned issues. Should the machinery experience both parallel and angular issues, this may lead to significant problems. A Flow Chart describing why do Machines Breakdown Issues with the Misalignment and Pairings Pairing or coupling is a tool that joins the parts of machinery. Operators often believe, “It isn’t necessary to set the alignment as it includes a coupling system that is set to take care of misalignment.” Nearly 50% of breakdowns relate to the poor alignment of the shaft. It benefits if supple pairing is in place and working. We want to motivate you to seek additional help by going to Youtube. Bearing with Anti-Friction Accurately manufactured, bearings are intended to function with dirt-free lubrication at constrained constant working temperatures. Any parts that are out by 0.2 mils can lead to misalignment as a result of increased temperature. This particular issue is caused by the poor positioning of the shaft
4. assembly and bearing. This may lead to the removal or refitting of the bearing, which eventually results in upsetting the bearing. Mechanical Seals In the event of misalignment the shaft will put a much more pressure on the seals. Plenty of shaft misalignment and weak Installation of Machinery leads to diminish seal life. An alternative to resolve this problem is to install the cartridge style of seals. Installing these components is usually not difficult. Its malfunctioning is really a disaster costing a lot simply because of seal failure due to misalignment which will come uninvited leading to,  Decreased time to work making a good decision is as easy as taking a quick look at Ehow.  Seal repairing  Pump repair and  Bearing replacement Machine Shaking/ Vibration One of the premature machine’s problems is due to high vibration that happens to increase if there is some misalignment. Repeated vibration signifies the hardware is exhausted much quicker and eventfully complete breakdowns. Usefulness of Alignment Forbearance Industry requirements for alignment are not yet agreed. A motor running a full power is scheduled under a lot of stress. The list below highlights some of the needs associated with alignment forbearance: Parallel Offset (mils) Motor Speed Short Flex Couplings Angular Misalignment (mils per inch) Spacer Couplings Motor Speed (RPM) Excellent Acceptable Excellent Acceptable 900 3.0 6.0 1.2 2.0 1,200 2.0 4.0 0.9 1.5 1,800 2.0 3.0 0.6 1.0 3,600 1.0 1.5 0.3 0.5
5. Without the use of tools like dial indicator or laser alignment, proper alignment is difficult to get. The works stages contain:  Securing the driven equipment like moving a pump in the first place as this would stress the linking pipe  Then installing coupling in the equipment in use.  A well aligned motor needs to be put in place.  After stabilization of temperature, put it off at once to recheck the alignment (because machines aligned in cold pre-operating atmosphere are mostly out of alignment when they reach a particular temperature due to thermal growth)  Thermal offset rules are published by several manufacturers in order to help technician to accurate thermal growth during the primary alignment procedure.