US7627441B2

US7627441B2 US10/675,014 US67501403A US7627441B2 US 7627441 B2 US7627441 B2 US 7627441B2 US 67501403 A US67501403 A US 67501403A US 7627441 B2 US7627441 B2 US 7627441B2 Authority US United States Prior art keywords vibrations control vibration diagnostic sensed Prior art date 2003-09-30 Legal status (The legal status is an assumption and is not a legal conclusion.

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Presented By: RE Mason

Add blade pass vibration Time Amplitude. Signal Processing-1.5-1-0.5 0 0.5 1 1.5 Turning Speed 2x TS yPaper Mill: yOn‐line vibration monitoring detected a cracked shaft Vibration Basics (Miller) 43 Ball Spin Frequency (BSF) Fundamental Train Frequency (FTF) Ball Pass Frequency Inner Race

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17 Zhu LM, Ding H, Zhu XY. Synchronous Averaging of Time-frequency Distribution with Application to Machine Condition Monitoring. Trans of the ASME, Journal of Vibration and Acoustics, 2007, 129(4): 441-447. 18 Luo HG, Zhu LM, Ding H. An Industrial Solution to Object Pose Estimation for Automatic Semiconductor Fabrication.

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The vibration analysis handbook (malestrom)

CHAPTER 1 Introduction to Machinery Vibration 40.17 by 6.18 (the ball pass frequency of the outer race at 1 Hz): 40.17/6.18 = 6.5 Hz. The roll must therefore turn at 6.5 Hz or 390 RPM in order to generate a frequency of 40.17 Hz if a defect is on the outer race. Finally, 390 x 4.178 (roll circumference) = 1629 FPM machine speed.

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Loesche

Loesche's Mill Optimization Solution is a state of the art optimization solution for Loesche Roller Mills. It uses commercial software to benefit from advanced RD and control technology Loesche is a mill supplier not a software design company. The solution is fully tested and proven in industry projects to deliver excellent results in terms of production rate, energy consumption, Vibration

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Grinding Mill Design Ball Mill Manufacturer

Feb 20, 2017All Grinding Mill Ball Mill Manufacturers understand the object of the grinding process is a mechanical reduction in size of crushable material. Grinding can be undertaken in many ways. The most common way for high capacity industrial purposes is to use a tumbling charge of grinding media in a rotating cylinder or drum.

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Energies

Based on this approach, the mechanism of friction-induced oscillations is proposed in ball ore mills—including their journal bearings diagnostics and different types of other industrial machines, e.g., steel rolling mills [86,87,88], where the effect of synchronization is also observed, like in ball mills.

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TECHNICAL REVIEW: No. 1 1987 Vibration Monitoring of

A simplified time signal from a new gearbox is shown containing not only the toothmeshing frequency, but also its higher harmonics. Fig. 3. a) Deflection of gear teeth in mesh together with a simplified time history from a new gearbox b) Changes caused in the teeth profile caused by wear a) b) 1,. Pitch •I Aerio{J A Time -'---V+--+--tV--tv---.

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GOWE spindle cnc spindle bt30 synchronous belt drive cnc

SPEED TIGER IAUE Carbide Square End Mill for Aluminum Applications - High Feed U-Type Design - for Roughing and Finishing - 3 Flute - IAUE3/83 - Made in Taiwan (1 Piece, 3/8) $19.59 In Stock.

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Axial motor vibration High

The motor specs are; 6300 KW driving a Ball mill (cement mill) Speed is 1194 rpm (actual speed with tachometer) NDE bearing is NU 1052 DE bearing is NU 248 (inside) DE bearing is 6048 (outside) The problem here is that the axial vibration goes high instead

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PRESENTATIONS PAGE

Ball Mill Gearbox Case History Barry T. Cease Cease Industrial Consulting. Machine Vibration Standards: Ok, Good, Better Best Part 1 - What Causes Vibration And Why Do We Care About It? Synchronous Averaging - The Trigger Is Everything Gerry Priebe Pre-B-Tek. May 2002.

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Case Boliden Autogenous Mill Application 131017

An autogenous mill is a mission critical application found in the concentrator section of a mine. The mill's primary task is to grind ore into a suitable size for the next step in the concentration process. There are many different types of mills; ball mills, rod mills, SAG (Semi-Autogenous Grinding) and autogenous mills.

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Kenneth McNelly and Akshay Srivatsan

powering a Tesla, the AC synchronous motor is used for much more specific tasks, such as ball mills and centrifugal pumps. Synchronous motors are used in ball mills not only for their efficiency, as the ball mill is a low-speed operation, but also for their precision at holding a constant speed [3].

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How to correct maintenance and repair ball mill

Aug 06, 2010The ball mill common cause of the malfunction and its elimination method are shown in the following table. How to correct maintenance and repair ball mill. Maintenance and repair of the ball mill is a regular work, maintenance work will affect the mill rate and the life of the operation, then the process of how to use the correct maintenance and repair, give the following introduction :

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Acceptable Noise Levels Of Ball Mill

An Analysis Of Mill Grinding Noise. Jan 01 the ball size ranges adopted were 127 635 mm 190 127 mm 254 190 mm and 254 mm the mill noise variaton with time was then investigated using a 99 kg charge of mixed balls and 500 g of 66 46 mm dolomite the mill noise level was monitored continuously for 32 min and the ore was sized at discrete time

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Pump Vibration Settings In Mils

Solving Vertical Pump Synchronous and Sub-synchronous Vibration Problems March 8, 2007 Presented by: in a vibration amplitude of 1.5 mils pk- pk which Read more ANSI/HI 9.6.4 2009 Rotodynamic Pumps for Vibration

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China Large Mining Industry Ball Mill Grinding Equipment

Large size Mineral processing wet ball mill Ball Mill is the key equipment for grinding materials to get the product as per the requirement of process, used widely in electric, ferrous (non-ferrous) metal, nonmetal mining, chemical building material industries.

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Optimizing Raw Mills Performance ; the Materials WAY

Jun 22, 2019Parameters Capacity kwh/tonne Mill Vibration. Max 90 mm 240 8.05 5--7 around 1.34 as a global average. However, the ratio can range from typically 0.8 to 1.9. a common laboratory ball mill

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Hilbert Vibration Decomposition (HVD).

DOI: 10.1049/el.2014.4076 • JJ Ramos, JI Reyes, E Barocio, An improved Hilbert Vibration Decomposition method for analysis of low frequency oscillations, (PES TD-LA), 2014 IEEE PES, 2014 • M. Bertha, J.C. Golinval, Identification of a Time-varying Beam Using Hilbert Vibration Decomposition, IMAC XXXII, Orlando, Florida USA, February 3-6

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Vibration monitoring of CNC machinery using MEMS sensors

Industry 4.0 relies on the adoption of digital technologies to gather data in real time and to analyse it, providing useful information to the manufacturing system. In this paper, what solutions modern production plants that are aspiring towards compliance with philosophy of the Industry 4.0 have to adopt, monitor and analyse the vibration data of the manufacturing systems using existing

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A Novel Blind Deconvolution De

A. Szczepanik, Time synchronous averaging of ball mill vibrations, Mechanical Systems and Signal Processing 3, 99–107, January 1989. CrossRef Google Scholar 9.

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BALL MILLS Archives

A division of Castlebroom Engineering Ltd Unit 10, Farthing Road Industrial Estate Ipswich, Suffolk, IP1 5AP, UK. Telephone: 01473 748144 Fax: 01473 748179

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BROCHURE Synchronous motors High performance in all

cleanliness, vibration levels and possible shocks affecting the bearings. Also radial and axial loads, rotation speed, coupling type and the type of driven equipment should be taken into account. ABB synchronous motors use quality sleeve bearings that withstand high levels of vibration and offer great performance. The bearings

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BALL MILL LINER

The ball mill liner is lined in the cylinder of the ball mill. The function is to protect the inner wall of the cylinder from being damaged by the impact of materials and steel balls. At the same time, different liner shapes can be used to adjust the motion state of the grinding medium in the cylinder to help Grinding media can grind materials

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Considerations Concerning the Dynamics of Vibra

ball - mill body collision and at low frequencies, the energy transmitted by the mill body is insufficient to maintain the ball at a continuous vibration. Ball and mill body trajectories generated by computer simulation and de-scribed during the periodic motion are shown in Figure 3 (frequency of the mill

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Electromagnetic design and thermal analysis of module

The test platform is shown in Figure 41, which comprises a ball mill, a prototype, a controller of the prototype, a belt conveyor, a torque sensor, a reducer, an induction motor, a frequency converter of the induction motor, and an observation bench. The actual grinding process of the ball mill cannot be measured due to the limited experimental

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China Flotation Cell manufacturer, Ball Mill, Jaw Crusher

Zhengzhou Zhongjia Heavy Industry Co., Ltd. is located in Xingyang City, west of Zhengzhou City, Henan Province. With several years of development, the company has grown up to one of the heavy machinery manufacturing enterprises of mine machinery, building materials machinery, metallurgy machinery, chemical machinery and environmental protection machinery, with design department, research

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Condition monitoring of bearings under medium and low

discrete/random separation, time synchronous averaging, cepstral editing procedure) [1] [9] [10]. The investigated method in this paper is the cepstral editing procedure (CEP) due to the efficiency and ease of interpretation and implementation. It has been shown in literature that

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China Yr3 Rolling Mill Wound Roto Motor 75kw IP54

Yr3, Rolling Mill Motor, Wound Rotor Motor manufacturer / supplier in China, offering Yr3 Rolling Mill Wound Roto Motor 75kw IP54, Low Speed Synchronous Motor with Excitation Control panel, AC Three Phase Asynchronous Electric Motor Durable Pump Submersible Motor and so on.

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Research on Mechanical Fault Diagnosis Scheme Based on

Wavelet analysis is a powerful tool for signal processing and mechanical equipment fault diagnosis due to the advantages of multiresolution analysis and excellent local characteristics in time-frequency domain. Wavelet total variation (WATV) was recently developed based on the traditional wavelet analysis method, which combines the advantages of wavelet-domain sparsity and total variation (TV

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References on the Hilbert Vibration Decomposition

Journal of Sound and Vibration. 2007, Vol.303, pp. 353-370. Feldman M. Considering High Harmonics for Identification of Nonlinear Systems by Hilbert Transform. Mechanical Systems and Signal Processing, 2007, Vol 21/2, pp. 943-958. Feldman M. Time-Varying Vibration Decomposition and Analysis Based on the Hilbert Transform.

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Automated SAG Mill Speed Control Using On

A low power vibration sensor with an RF link has been placed directly on a SAG mill shell to measure the rock and ball impact energy occurring at the liners in real-time. Fast Fourier Transforms (FFTs) are then performed on the shell to accurately determine the vibration energy content and shape of the toe primary grinding region.

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