images images images

The Sensitivity Analysis of Inherent Frequency of Roll ...

The Sensitivity Analysis of Inherent Frequency of Roll Mill's Main Drive System View the table of contents for this issue, or go to the journal homepage for more 2017 IOP Conf. Ser.: Mater.

images images images

Dynamics of rolling mill drive system considering arc ...

The drive system of a hot rolling mill is the power source to roll strip, which is mainly composed of a gearbox, a main spindle, a herringbone gear box, spindles and a roll system. The spindle connecting the herringbone gear box and the roll system adopts an arc tooth gear structure, which has a strong transmission capacity in the coupling.

images images images

Dynamics of rolling mill drive system considering arc ...

10%The drive system of a hot rolling mill is the power source to roll strip, which is mainly composed of a gearbox, a main spindle, a herringbone gear box, spindles and a roll system. The spindle connecting the herringbone gear box and the roll system adopts an arc tooth gear structure, which has a strong transmission capacity in the coupling.

images images images

Coupled Vibration Behavior of Hot Rolling Mill Rolls …

Substituting A and B into equation ( 24) and separating the real and imaging parts, the average equation of the coupling system can be obtained as follows: where θ1 = φ2 − φ1 − δ1T1 and θ2 = δT1 − φ2. Considering the occurrence of a periodic movement in the coupling system of the hot rolling mill rolls, holds.

images images images

2019. Bifurcation and chaos for electromechanical coupling ...

The main drive system of rolling mill usually consists of motor, universal couplings and rollers. The method of lumped mass is adopted to abstract the r olling mill main drive system driven by DC synchronous motor into a two-mass relative rotation model. Considering the rolling mill main drive system under the incentive of torsional rigidity and

images images images

Torsional Vibration for Rolling Mill with the Drive System ...

10%Dynamic Model. The rolling mill drive system mainly consists of the motor, reducer, main shaft, speed divider, arc gear shaft, work roll and bearings at corresponding parts [].The torsional vibration is often closely related to the dynamic energy transformation process of the rolling interface, which causes the relative speed between the …

images images images

Torsional Vibration for Rolling Mill with the Drive System ...

Dynamic Model. The rolling mill drive system mainly consists of the motor, reducer, main shaft, speed divider, arc gear shaft, work roll and bearings at corresponding parts [].The torsional vibration is often closely related to the dynamic energy transformation process of the rolling interface, which causes the relative speed between the strip and work roll change …

images images images

Characteristic of torsional vibration of mill main drive ...

In the study of electromechanical coupling vibration of mill main drive system, the influence of electrical system on the mechanical transmission is considered generally, however the research for the mechanism of electromechanical interaction is lacked. In order to research the electromechanical coupling resonance of main drive system on the F3 mill in a …

images images images

Characteristic of Torsional Vibration of Mill Main Drive ...

that rolling mill do exist vertical-twist coupling vibration, electromechanical coupling vibration and liquid-mechanical coupling vibration phenomenon. In addition, nonlinear theory is used for the research of the electromechanical coupling of rolling mill[20]. So much research has greatly enriched the contents of coupling vibration of mill drive

images images images

Mechanism Research of Rolling Mill Coupled Vibration ...

In the study of electromechanical coupling vibration of mill main drive system, the influence of electrical system on the mechanical transmission is considered generally, however the research for the … Expand

images images images

Rolling mill chatter mechanism based on the unsteady ...

Coupling the dynamic rolling process model with a mill stand structure model, a chatter model which considers the unsteady lubrication state at roll bite was established. Based on the proposed chatter model, the friction coefficient, rolling force and critical velocity of a rolling mill stand under different working conditions were calculated.

images images images

The Sensitivity Analysis of Inherent Frequency of Roll ...

The Sensitivity Analysis of Inherent Frequency of Roll Mill's Main Drive System View the table of contents for this issue, or go to the journal homepage for …

images images images

Review on Main Drive Torsional Vibration and Roller ...

Title:Review on Main Drive Torsional Vibration and Roller Coupling Vibration of Rolling Mill VOLUME: 15 ISSUE: 3 Author(s):Xiao Bin Fan*, Bin Zhao, Yu Jiang and Bing Xu Fan Affiliation:School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo …

images images images

COMPARISON OF ROLLING MILL DRIVE SHAFT CONCEPTS*

A plate mill rolling stand driven by two motors with an input power of 10000kW each, with 200% short-term overload capacity and an annual contact time of 25% of 6500ℎ yearly operating time, is upgraded from a drive solution with slipper spindles ( = 99,1%), where oil-grease lubrication (roll side slipper joint grease lubricated, and

images images images

Impact Analysis of Roller System Stability for ... - Hindawi

3. Mill House Clearance and Drum Gear Coupling Effect on the Roll System Stability. The CSP mill house and bearing plate never change from production in recent 4 years; their wear and tear may be large. So the F3 mill upper and lower work roller bearing seat width of drive side and operation side were measured.

images images images

Coupled Vibration Behavior of Hot Rolling Mill Rolls under ...

A coupled vibration model of hot rolling mill rolls under multiple nonlinear effects is established by considering the nonlinear spring force produced by the hydraulic cylinder, the nonlinear friction between the work rolls, the dynamic variation of rolling force, and the effect of external excitation as well as according to the structural constraints of a four-high hot rolling mill in the ...

images images images

Development of Hydraulic Type Gap-less Coupling for ...

Koyo Engineering Journal English Edition 63E (2003) 49 1. Introduction In rolling mills for steel or nonferrous metals, the connection of the roll with the drive shaft (hereinafter referred to as DS) is usually performed by inserting the roll edge into the coupling cavity on the DS side. The roll section on the coupling side is generally oval in

images images images

Use of automated electric drives for limiting ... - Wiley

The Journal of Engineering The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018) Use of automated electric drives for limiting dynamic loads in shaft lines of roll mill stands eISSN 2051-3305 Received on 22nd June 2018 Accepted on 2nd August 2018 E-First on 15th April 2019 doi: 10.1049/joe.2018.8135

images images images

Development of Hydraulic Type Gap-less Coupling for ...

Koyo Engineering Journal English Edition 63E (2003) 49 1. Introduction In rolling mills for steel or nonferrous metals, the connection of the roll with the drive shaft (hereinafter referred to as DS) is usually performed by inserting the roll edge into the coupling cavity on the DS side. The roll section on the coupling side is generally ...