Ball Mill Girth Gear High Vibration Problem Case Study

ball mill girth gear high vibration problem case study

ball mill girth gear high vibration problem case study Replacement girth gears made of ductile cast iron for cement mills Issue 12/2012 - Products ... a manufacturer of girth gears for cement mills, has been offering replacement ball mill girth gears made of ductile cast iron (Fig. ...

BALL MILL GEARBOX PROBLEM - Vibration

• Compare high frequency Peakvue vibration waveform data from 1A Ball Mill, measurement points PIA (pillow block, inboard, axial) and GOA (gearbox, output, axial). • Note how levels at the pillow block are significantly higher than those seen at the gearbox.

ball mill girth gear high vibration problem case study ...

ball mill girth gear high vibration problem case study 4.6 - 3929 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry.

AN EXPERIMENTAL ANALYSIS OF VIBRATION OF A BALL MILL …

The drive of the ball mill consists of an induction electric motor, two-stage gearbox and the pinion gear. This pinion gear is mated with the girth gear mounted on circumference of the ball mill shell and in that way it transfers the motion from the drive to the shell, see Figure 1, taken from [1]. Figure 1. Mechanical system of a ball mill ...

High vibrations on a ball mill | AMP Maintenance Forums

Jan 21, 2011· Gears (girth gear and pinions - double drive) are new and from other manufacturer. Compared with the previous gears on this mill, new gears have a larger modulus and different number of the teeth but with the similar gearmesh - now 61.8Hz instead of 57Hz before.

Case Study 7 - Continuous Monitoring

vibration levels on the ball mill pinion support shaft bearings had increased to alarm levels. At the next available ball mill stoppage an inspection was undertaken to determine the problem in question and it was found that the pedestal shaft bearing top housing had started to work loose, resulting in the increased levels of vibration.

Wear of gears: A case study at Shiraz Cement Plant ...

Apr 13, 1993· A case study has been conducted on the wear problem of a set of large helical gears of a ball mill used for cement production at the Shiraz Cement Plant. The ball mill has a nominal capacity of 80 t h −1. The overall diameter and length are respectively 4000 mm and 12990 mm. The total weight of the ball mill when fully charged is about 280 t.

A STUDY OF GEAR NOISE AND VIBRATION - DiVA portal

A STUDY OF GEAR NOISE AND VIBRATION M. Åkerblom* and M. Pärssinen♣ *Volvo CE Components AB, SE–631 85 Eskilstuna. *Department of Machine Design, KTH, SE–100 44 Stockholm. ♣MWL, Department of Vehicle Engineering, KTH, SE–100 44 Stockholm.1 Abstract The influence of gear finishing method and gear deviations on gearbox noise is investigated in this mainly experimental study.

(PDF) Vibration analysis on a cement mill foundation

In the present case study, the causes of the high vibrations on a double-drive cement mill is investigated by performing a series of vibration measurements on the cement mill pinion and the main ...

Detailed Vibration Analysis of Pinion Gear with Time ...

study the detection of gear tooth fatigue cracks and their propagation rates under a variety of operating load levels. The gear under study was the spiral bevel pinion with 19 teeth (fig. 3a). Nine notches were fabricated in the fillets on various teeth of the pinion. The notch sizes varied from 0.5 to 0.1" in length, and 0.015 to 0.045" in depth.

ball mill girth gear high vibration problem case study ...

ball mill girth gear high vibration problem case study 4.6 - 3929 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry.

AN EXPERIMENTAL ANALYSIS OF VIBRATION OF A BALL …

The drive of the ball mill consists of an induction electric motor, two-stage gearbox and the pinion gear. This pinion gear is mated with the girth gear mounted on circumference of the ball mill shell and in that way it transfers the motion from the drive to the shell, see Figure 1, taken from [1]. Figure 1. Mechanical system of a ball mill ...

Case Study 7 - Continuous Monitoring

vibration levels on the ball mill pinion support shaft bearings had increased to alarm levels. At the next available ball mill stoppage an inspection was undertaken to determine the problem in question and it was found that the pedestal shaft bearing top housing had started to work loose, resulting in the increased levels of vibration.

(PDF) Vibration characteristics of an operating ball mill

Dry grinding of a gibbsite powder was conducted in air using a tumbling ball mill with mono-size of media (balls) ranging from 4.8 to 31.7 mm diameter to investigate ball size effect on grinding rate.

Ball mill high vibs | AMP Maintenance Forums

Hi Observing high vibs on pressing and lifting pinion DE and NDE bearing on a ball mill. Motor and main GB drive are OK. Clear predominant gear mesh frequency is appearing in the spectrum along with harmonics and side bands. But 1st GMF is predominant. side bands with pinion speed is seen. no GG speed side band was observed Some of the vib data, spectrums and photos shown in the attachment.

A STUDY OF GEAR NOISE AND VIBRATION - DiVA portal

A STUDY OF GEAR NOISE AND VIBRATION M. Åkerblom* and M. Pärssinen♣ *Volvo CE Components AB, SE–631 85 Eskilstuna. *Department of Machine Design, KTH, SE–100 44 Stockholm. ♣MWL, Department of Vehicle Engineering, KTH, SE–100 44 Stockholm.1 Abstract The influence of gear finishing method and gear deviations on gearbox noise is investigated in this mainly experimental study.

VIBRATION STUDIES OF CEMENT MILL - Maintenance

VIBRATION STUDIES OF CEMENT MILL ... (5 mm/sec) on one end while its high (11 mm/sec) on the other end even though ... In this case pinion has 30 teeth and Girth gear has 210 teeth o Then as per calculations o Pinion 30 = 1 x 2 x 3 x 5 , GG 210 = 1 x 2 x 3 x 5 x 7 o So common factor are 2 x 3 x 5 . 2

Benefits of continuous data acquisition from critical ...

Case Studies Case 1) a condition monitoring system was installed in a 2500 kW gear reducer for a ball mill. After a number of years of smooth operation an abnormal increase in vibra-tion was automatically detected by the system. Fault symptoms indicated a significant increase of bearing play, causing gear meshing problems.

(PDF) Vibration analysis on a cement mill foundation

In the present case study, the causes of the high vibrations on a double-drive cement mill is investigated by performing a series of vibration measurements on the cement mill pinion and the main ...

motor vibration problems on a tube ball mill

axial vibration of ball mill pinion . ball mill girth gear high vibration problem case study. ball mills are used primary motor vibration problems on a tube ball mill ball mill 9000 hp motor speed . …

Vibration In The Ball Mills Lgd - Scholman Loodgieters

BALL MILL GEARBOX PROBLEM Vibration . BALL MILL DRIVES LOADED OVERALL VIBRATION SEPTEMBER 1A 1B Above is a plot of the overall vibration levels at both the 1A 1B ball mills when loaded Note how levels at 1A ball mill are higher than that at 1B ball mill for nearly every measurement. Details. Ball Mill Girth Gear High Vibration Problem Case Study.

simulate vibration conveyor

A Study on a Novel Vibrating Conveyor - Scientific.net The purpose of this study is to present a novel concept for inline vibrating conveyors, and verify its feasibility by …

Fractional Gear Mesh Frequencies – Reliability Management ...

Oct 20, 2017· VIBRATION STUDIES OF CEMENT MILL. Steps for vibration measurements. ... In this case pinion has 30 teeth and Girth gear has 210 teeth o Then as per calculations Pinion 30=1x2x3x5,GG 210=1x2x3x5x7 ... Schematic to Understand and Resolve Vibration Problems. Leave a Reply Cancel reply.

Investigative techniques for detecting torsional stresses ...

resonance of the shaft lines of the ball mill at 10.8 Hz. This phenomen correspond o the excitation of a torsional natural frequency by the pinion / girth gear mesh frequency. This phenomenon is clearly identifiable on the torque and the instantaneous speed measurements when the gear mesh frequency is close to 10.8 Hz.

AN EXPERIMENTAL ANALYSIS OF VIBRATION OF A BALL …

The drive of the ball mill consists of an induction electric motor, two-stage gearbox and the pinion gear. This pinion gear is mated with the girth gear mounted on circumference of the ball mill shell and in that way it transfers the motion from the drive to the shell, see Figure 1, taken from [1]. Figure 1. Mechanical system of a ball mill ...

Case Study 7 - Continuous Monitoring

vibration levels on the ball mill pinion support shaft bearings had increased to alarm levels. At the next available ball mill stoppage an inspection was undertaken to determine the problem in question and it was found that the pedestal shaft bearing top housing had started to work loose, resulting in the increased levels of vibration.

(PDF) Vibration characteristics of an operating ball mill

Dry grinding of a gibbsite powder was conducted in air using a tumbling ball mill with mono-size of media (balls) ranging from 4.8 to 31.7 mm diameter to investigate ball size effect on grinding rate.

A STUDY OF GEAR NOISE AND VIBRATION - DiVA portal

A STUDY OF GEAR NOISE AND VIBRATION M. Åkerblom* and M. Pärssinen♣ *Volvo CE Components AB, SE–631 85 Eskilstuna. *Department of Machine Design, KTH, SE–100 44 Stockholm. ♣MWL, Department of Vehicle Engineering, KTH, SE–100 44 Stockholm.1 Abstract The influence of gear finishing method and gear deviations on gearbox noise is investigated in this mainly experimental study.

Investigative techniques for detecting torsional stresses ...

resonance of the shaft lines of the ball mill at 10.8 Hz. This phenomen correspond o the excitation of a torsional natural frequency by the pinion / girth gear mesh frequency. This phenomenon is clearly identifiable on the torque and the instantaneous speed measurements when the gear mesh frequency is close to 10.8 Hz.

Benefits of continuous data acquisition from critical ...

Case Studies Case 1) a condition monitoring system was installed in a 2500 kW gear reducer for a ball mill. After a number of years of smooth operation an abnormal increase in vibra-tion was automatically detected by the system. Fault symptoms indicated a significant increase of bearing play, causing gear meshing problems.

Vibration In The Ball Mills Lgd - Scholman Loodgieters

BALL MILL GEARBOX PROBLEM Vibration . BALL MILL DRIVES LOADED OVERALL VIBRATION SEPTEMBER 1A 1B Above is a plot of the overall vibration levels at both the 1A 1B ball mills when loaded Note how levels at 1A ball mill are higher than that at 1B ball mill for nearly every measurement. Details. Ball Mill Girth Gear High Vibration Problem Case Study.

Industrial Vibration Analysis & Predictive Maintenance ...

The support wheel bearings in a calciner case had an ultra-low rpm: 3.4–3.9. The customer had been utilizing a traditional vibration analysis system for a number of years, but they lacked a pre-warning time and faced high risk… Rick Verbij; SPM Netherlands

motor vibration problems on a tube ball mill

axial vibration of ball mill pinion . ball mill girth gear high vibration problem case study. ball mills are used primary motor vibration problems on a tube ball mill ball mill 9000 hp motor speed . …

simulate vibration conveyor

A Study on a Novel Vibrating Conveyor - Scientific.net The purpose of this study is to present a novel concept for inline vibrating conveyors, and verify its feasibility by …

Case study: Very early warning with HD technology - SPM ...

Vibration technology is optimal for low frequency-related fault conditions like unbalance, loose gears and misalignment. This case study describes the condition monitoring setup and findings in a ball mill gearbox and exhaust fan.

Vibration Based Condition Monitoring ofRolling Mill

Vibration Based Condition Monitoring of Rolling Mill V inod D.TIrpude, Jayant P.Modak, Girish D. Mehta Abstract: All over the India, most of the processing industries are involved with rolling operations for steel and alloyed materials. To perform these operations, rolling mills are used.

Analysis of noise and vibration during the operation of ...

Analysis of noise and vibration during the operation of the ball mill. The ball mill is used for grinding materials after crushing, and CHAENG is a professional manufacturer of ball mill accessories, such as girth gear of ball mill, ball mill trunnion, ball mill end cover, etc., which are used by customers in various industrial fields.

vibration in ball and tube coal mill

vibration problem in coal mill gearbox Ball Mill Girth Gear High Vibration Problem Case Study ball mill girth gear high vibration problem case study 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.