The failure of both couplings occurred on the middle roll between the first stand and the gearbox roll side Fig. 2. 2. Failure of couplings Spindle Coupling Selection Guide..18-19 Contents. New CNC machinery Main drive for large reversing mill Large telescopic spindle Finished hot strip mill spindles (Steckel) mill with roll shifting Type 3 ...

MSD eliminates gap between roll chocks and mill housing keep rolls in proper position and stabilize rolls. Chat Online; Nonlinear Coupling of Pitch and Roll Modes in Ship Motions . Roll Stabilization by Passive Anti-Roll Tanks Using an Improved Model of the Tank-Liquid Motion 19 August 2016 Journal of Vibration and Control Vol. 9 No. 7 ...

COUPLING FOR MILL ROLLS . United States Patent 3779037 ... Automatically operable articulated coupling means between the rolls of a roling milland their drive spindle means: : Wegmann: 2823527: Gear type couplings: : Belden et al. Primary Examiner: Antonakas, Manuel A. Assistant Examiner:

Journal Of Drive Coupling For Mill Roll. used stone crusher specification. probat roll mill reconditioned 2. ropar grinding ... Detail About. A NEW SUGAR MILL DRIVE COUPLING by gyvwpsjkko. A NEW SUGAR MILL DRIVE COUPLING.pdf ... Sugar-mill top-rolls are capable of journal misalign ... Al- and it is only when the mill roll is misaligned ...

Fig. 8 shows the effect of lubricant viscosity on rolling vibration critical speed. It can be seen that the critical speed of the vibration decreases with increasing viscosity. This is because the viscosity of the emulsion increases which causes an increase of emulsion film thickness of the rolling mill inlet area, and resulting in an increase of the film thickness in the …

Apr 01, 2013 0183 32 To develop an analytical method for spatial vibration analysis of rolling mill, a 250 mm diameter of the roll high-stiffness rolling mill without housing is taken as an object for analysisAs shown in Fig 2, the upper and lower chocks are connected by two square columns and two rods with left and right threadsConnections between chocks and square columns are,...

As shown in Figure 1, the solid line represents the steady-state position of roll and the dashed line is the position of roll under vibration conditions. Considering the elastic flattening of the rolls, the roll gap is treated as a parabolic curve [].Based on Von Karman's study [], considering the vertical displacement of rolls, the thickness of the rolling mill at any arbitrary position is

Journal Of Drive Coupling For Mill Roll. Universal Joint ShaftCardan ShaftUniversal SpindlePropeller Shaft. timothy holding co., ltd. was founded in 1993. it has been specialized in producing universal joint shafts (also called cardan shaft or universal spindle) for more than twenty years.our products are l argely used in rolling mills, pipe ...

Select a coupling for reversing service to connect a gear drive low-speed shaft to a runout mill table roll . The electric motor rating is 37 kW at the base speed and the system peak torque at the coupling is estimated to be 17000 Nm . Coupling speed is 77 rpm at the motor base speed . The drive shaft diameter is 100 mm with a key of 28 mm x 16

He, "Analysis of self-excited vibration on main drive system of billet mill", J. Wuhan Uni. Sci. Technol., vol. 33, no. 3, pp. 303-306, 2010. ... Results: The evolution of non-linear random torsional / bending vibration and its transfer mechanism to the space coupling vibration of the roll system, the unsteady dynamic friction characteristics ...

This study establishes a vertical–horizontal coupling vibration model of hot rolling mill rolls under multi-piecewise nonlinear constraints considering the piecewise nonlinear spring force and piecewise nonlinear friction force constraints of the hydraulic cylinder in the vertical direction of the rolls, the piecewise stiffness constraints in the horizontal direction, and …

Analysis of Vertical-Horizontal Coupling Vibration Characteristics of Rolling Mill Rolls Based on Strip Dynamic Deformation Process April 2014 Shock and Vibration 2014(1):1-11

elastomer coupling SGFlex-LC. torsionally flexible for shafts transmission. Torque: 4,300 Nm - 13,200 Nm. Rotational speed: 3,400 rpm - 4,100 rpm. The nex SGFlex-LC coupling system covers the torque range between our SGFlex-3F and TENBEX-ECO coupling systems.

The model is based on the basic principles of the general concept of technical objects parametric reliability [10,11,12,13] and major provisions of the electromechanical theory of stationary tribo-systems wearing [14,15,16,17,18,19,20].They have been created by simultaneous solution of the fundamental equations of molecular–mechanical [] and structural–energetic …

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 plant, the …

The rolling process is determined by the interaction of a number of different movements, during which the relative movement occurs between the vibrating roll system and the rolled piece, and the roll system's vibration interacts with the strip's deformation and rigid movement. So many parameters being involved leads to a complex mechanism of this …

Journal Of Drive Coupling For Mill Roll uniqueevent in. Abstract of the Disclosure The present invention relates to couplings and more parti cularly to spindle couplings of the type used in connecting a powered prime mover to the rolls of a rolling mill or connecting the pinion stand to the rolls as well as to like apparatus .

Liu et al. used the Hopf bifurcation theorem to analyze the stability and bifurcation characteristics of rolling mill rolls by subjecting the main drive system of a rolling mill to an ...

journal of drive coupling for mill roll. journal of drive coupling for mill roll,6 Jun 2014,rolling mill deformation electric drive elastic bolts / vibromounts Centralized force feed oil / grease lubrication system with separate piping & sight glass for each journal,In uni-drive mill, the rear roll

US Patent # 5,224,789. Clampable form-fit . Clampable form-fit coupling ... a coupling box on the journal of a roll in a rolling mill. ... while periodic pulsing in the drive has an unfavorable effect on ...

A NEW SUGAR MILL DRIVE COUPLING Semantic Scholar. A mill­ drive coupling was designed along the same lines as the and it is only when the mill roll is misaligned sloping The mill hydraulics can rise 25 mm journal centres are 3 048 mm and the centrelineof the coupling is a further I 857 mm from the pinionjournal. Get Price

In this paper, we propose an effective mechanical-electrical-hydraulic-interfacial coupling vibration model for hot rolling mills and obtain a practical measure to relieve mill vibration. First, an experiment related to mill modulus control gain in automatic gauge control (AGC) is carried out during manufacturing. Rolling mill vibration is observed to gradually be enhanced with …

A mill 173 drive coupling was designed along the same lines as the, and it is only when the mill roll is misaligned sloping, The mill hydraulics can rise 25 mm journal centres are 3 048 mm and the centre-lineof the coupling is a further I 857 mm from the pinionjournal...

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

FEM analysis of new coupling design with stiffer thickness of 32.5 mm. FEM analysis revealed that redesign of coupling by stiffer thickness of 12.5 mm reduces maximum local stress from 294 MPa to 163 MPa (about 44%) and with stiffer thickness of 32.5 mm reduces from 294 MPa to 139 MPa (about 52%). 3.4. Service life.

The nonlinear dynamic model of electromechanical coupling main drive system of rolling mill with nonlinear stiffness and frictional torque is established. The equilibrium point of the system is analyzed, the conditions of the Hopf bifurcation of the system are given, and the type of the bifurcation is studied. The Hopf bifurcation controller is obtained by using the exact …

Failure analysis of rolling mill stand coupling. 01/11/2014· Slipper couplings and drive shafts are used to transmit torque between gearbox and 3-high-roughing mill stands. The failure of both couplings occurred on the middle roll between the first stand and the gearbox, roll side, Fig. 2. 2. Failure of couplingsОнлайн-запрос

Many older designed mills utilize single drive systems (motor, coupling and speed reducer) to power several conveyor rolls. This design uses a single motor, coupling and speed reducer to drive the primary roll, while four to five other rolls are coupled, or slaved to the prime mover utilizing a roller chain.

Development of Hydraulic Type Gapless Coupling for . Koyo Engineering Journal English Edition No163E (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