Home >>Mill Pinion Bearing Vibration Maintanance
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Vibration measurements are taken on the cemen t mill pinion bearings and on the concrete the graph on th e left stands for the drive-end bearing vibration and reduce maintenance costs and .
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Vibration problem in cement mill pinion bearing vibration in cement mills then it is a good indicator that the pinionbearing preload has loosened pinion bearing vibration in cement mills high vibration ball mill duel pinion more selection of vibration pickup for ball grin morethere will vibration about problem of cement mills pinion vibrations.
First the vibration caused by bearing wear there is a spherical roller bearing on each side of the pinion after a period of operation or maintenance it will cause wear of the bearing resulting in larger bearing clearance or pitting of the roller due to abnormal wear the vibration becomes larger which causes the meshing of the small gear .
Vibration studies of cement mill maintenance normal vibration signatures were recorded with motor speed being 994 rpm and pinion speed 122 rpm vibration data was recorded on selected bearing locations of motor gearbox and pinion bearings data was recorded along horizontal vertical and axial direction with 90% load on the mill phase .
Sag mill syncronis motor high axial vibration non drive end nov 3 2014 the highest vibration is 30mmsec rms axial on the motor n measurements on the pinion bearings motor bearing trunion bearings the to day as there can be more tonshour and .
Vdz maintenance of cement plants for the cement industry vdz provides maintenance of cement plants for the cement industry cracks or material ruptures on tyres rollers girth gear pinion kiln or mill shell mill head: mechanical problems on main drive : high power consumption on main drive knocking on main drive girth gearpinion: unusual vibration around the main drive or pier .
Ball mill pinion speed 226 ball mill gear speed 18 gearbox (between motor & ball mill) nb ftf bsf 2x bsf bpfo bpfi input brgs skf22330 15 491 3192 6384 7358 10507 output brgs skf22240 19 97 783 1566 1848 2446 gearbox gearmesh freq 22629 19 gearbox pinion tooth count 19 gearbox bull tooth count 100 ball mill.
Metallurgical contentball mill maintenance manualon mill installation and maintenanceball mill concrete foundationsgrinding mill foundationgroutingball mill sole plate am sure your ball mill is considered the finest possible grinding mill available as such you will find it is designed and constructed according to heavy duty specifications it is designed along sound engineering principles .
Hd technologies case study: ball mill bearing damage - the subject of this case study is the nde (non-drive end) pinion bearing of ball mill no 8 in the mill dpt in the flotation plant the bearings on the pinion are of type 22380ymb spm hd spectrum from the nde bearing shows a clear match of the bpfo (ball pass frequency outer race) symptom.
rand water through bearing services nelspruit (base repair and motor alignment) umgeni water through bearing services durban (vibration thermography and oil sample data collection and reporting) impala marula in steelpoort through skf and bearing services lydenburg (mill drive train alignment and conveyor drive alignment.
Pinion bearing damage in ball mill using hd measurement technologies bulgarian copper producer asarel medet ad monitors the mechanical condition of critical equipment in the open-pit mine and flotation plant this case study deals with the successful detection of outer race damage on a ball mill pinion bearing.
A vibration survey was carried on this ball mill with a duel pinion drive the vibration is high in all planes on both sides of the mill or both pinion drives the measurements were similar in velocity on the motor gearbox and both pinion bearings.
Jan 21 2011 hello everyone i have a problem with high levels of vibration at the supports of the pinion (fixed and floating bearings) of the cement ball mill the kinemantic scheme with the measurement locations and several representative spectra and timewaves are in the attched file.
Therefore the operators can carry out targeted maintenance and repair on the pinion of the ball mill according to the situation if the pinion gear breaks the motor current will increase instantly exceeding 15% of the rated value at this time the equipment system will be self-lock which can effectively protect other equipment in operation 2.
The unbalanced point must have created the extreme vibration at high speeds to further reduce the vibration mill maintenance dynamically balanced each pulley with counterbalance weights and adjusted the bearing assemblies in this case simple housekeeping would have reduced the vibration.
Mill maintenance 3 simple ways to keep your mill at its best; figure 2 a spare pinion - ready for stripping and rebuilding some areas such as gear tooth temperatures and gearbox bearing vibrations may need specialist instruments to take readings whilst other parts will simply need visual inspections (eg leaks from seals .
Bearing damage from circulating currents bearings are electrically insulated the shaft is grounded to avoid static charges of the stator the low speed motor solution due to the high torque required by the mill low speed motors are generally synchronous machines the mill is a low dynamic system.
Spherical roller bearings with rocker technology mean fewer spare parts automated lubrication the automated lubrication systems are either a cabinet or drum type depending on the mill size and the application in questionthe systems provide lubrication to the main bearings and seals pinion bearings and seals and pinion gear drive.
Bahrain cement mill pinion bearings vibration ball mill vibration analysis high vibrations on a ball mill amp maintenance forums hello everyone i have a problem with high levels of vibration at the supports of the pinion fixed and floating bearings of the cement ball mill details; cement mills bearing.
Sag mill pinion vibration problemsball mill pinionbearingvibration fysiouidlarennlpinionbearingvibrationincement mills5 has a limited axial displacement and therefore requires an axial bearing find 29 2nd handusedball millsin fdp is one of the biggest manufacturers in aggregate processing machinery for theball mill axial testproceduresandaxial.
Vibration analysis of rolling element bearing faults localized faults in a rolling element bearing may occur in the outer race the inner race the cage or a rolling element each of these faults is characterized by its own frequency which is usually listed by the manufacturer or calculated from the bearing .
Oct 23 2017 vibration data was recorded on selected bearing locations of motor gearbox and pinion bearings data was recorded along horizontal vertical and axial direction with 90% load on the mill phase measurements were recorded to know the behavior of pinion de with respect to pinion nde of pressing and lifting side.
But maintenance of such rolling mills is a tedious job because these rolling mills work under certain critical conditions such as frequent load variations higher temperatures etc rolling mill vibration based condition monitoring vibration pinion shaft s4 is rested on bearings b7and b9 the power is transmitted from shaft.
Demands on production machine uptime and maintenance the vibration from worn pinion gears gear mesh bearings and gearboxes of the rolling mills this is not only for minimizing machine.
Jan 01 2014 a very prominent merit of vibration-based monitoring lies in the fact that each and every cause of vibration in a machine (imbalance misalignment looseness broken rotor bars gear wearbreakage damaged couplings bearing faults etc) has its distinctive feature which is often identified through the excited frequencies.
Ball tube mill pinion bearing edeka-herrnburgde ball tube mill pinion bearing high vibration ball mill duel pinion drive mechanical a vibration survey was carried on this ball mill with a duel pinion drive the vibration is high in all planes on both sides of the mill or both pinion drives.
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