An effective dynamic model is the basis for studying rolling mill vibration. Through analyzing characteristics of different types of vibration, a coupling vibration structure model is established, in which vertical vibration, horizontal vibration, and torsional vibration can be well indicated. In addition, based on the Bland-Ford-Hill …
Based on the phase trajectory and frequency spectrum analyzes for dynamic system, he found that, the elimination of the clearance within rack bearings and …
analyzed. The results can provide a theoretical basis for restraining and controlling rolling mill vibration. 2. Vertical-torsional-horizontal coupling vibration model of the rolling mill 2.1. Dynamic model of rolling process under nonlinear friction The geometry of the roll bite is illustrated in Fig. 1, where 1 $ 5 and 1 $ 6 are the original
coupling correspond to the requirements of the drive. If the allowable maximum bore is too small, select a larger Coupling; in case allowable safe speed is too low, a different type of Coupling will have to be considered. EXAMPLE : Required a coupling to connect a 20 H.P. / 980 R.P.M. Motor to a speed reducer driving an inclined assembly conveyor.
Rolling mill system may lose its stability due to the change of lubrication conditions. Based on the rolling mill vertical–torsional–horizontal coupled dynamic model with nonlinear friction considered, the system stability domain is analyzed by Hopf bifurcation algebraic criterion. Subsequently, the Hopf bifurcation types at different …
In order to suppress the vibration during the rolling process of the rolling mill and improve the stability of the rolling process, this paper designs a spring-damping …
Also called double-loop couplings, these have a flexible center that reduces vibration and compensates for high parallel and angular shaft misalignment. Servomotor Precision Flexible Shaft Couplings Able to handle high twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
vibration and torsional changes. Flexible couplings are often used to drive pumps, fans, compressors, motor generator sets, conveyors, crushers, vibrating screens, etc. Because a flexible coupling joins two machines / equipment, it may be …
Rolling mill system may lose its stability due to the change of lubrication conditions. Based on the rolling mill vertical–torsional–horizontal coupled dynamic …
2.1 Rolls system transverse bending vibration model 2.1.1 Model construction. Taking into account the symmetry of the upper and lower rolls system, the six-high rolling mill can be simplified to a simply supported three-beam system, as illustrated in Fig. 1.The rolls are connected by uniformly-distributed connecting elastic layer …
When selecting the HVAC centrifugal pump, there are different pump coupling types to choose from. In the last R L Deppmann Monday Morning Minute we examined the mechanical room space required for base mounted end suction vs. base mounted vertical inline pumps. This week's topic centers on the types of couplers available.
Through testing and analyzing the vibration signals of the mill in the rolling process, the rolling mill's coupled model is established with comprehensive …
The factors that influenced the horizontal vibration response, such as excitation models, stiffness of guide shoes, and cabin parameters, were analyzed by solving the vibration acceleration of the coupling system. Vibration acceleration was measured through experiments to verify the theoretical results. The vibration acceleration of the …
WEBJia et al. studied the effect of dynamic stiffness compensation on the electromechanical coupling vibration of a rolling mill. Cui et al. studied the rigid–flexible coupling problem between …
DOI: 10.1007/s40997-024-00767-w Corpus ID: 269453055; Coupled Vertical–Horizontal Vibration Characteristics of a Cold Rolling Mill Based on an Optimized Karman Differential Equation
the original grid coupling manufacturer. G-Flex/Bibby 2000 Series is an all-metal coupling that provides positive protection against the damaging effects of shock loads and vibration. Aluminum horizontal cover (T10), and all-steel vertical cover (T20) designs are available. G-Flex tapered grid couplings are an excellent choice where
These clearances range up to 1 mill (0.001 in.) for rolling-element bearings and 3 to 8 mills in plain bearings, depending on shaft size. ... Consider two similar couplings, Figure 2, which have ...
The vibration mechanism of horizontal-vertical coupling in rolling mills is still unclear, and studies have shown that it may be caused by the coupling of the work interface between the rolled parts and the rolls as well as the electromechanical coupling [45]. 3.1. Piecewise stiffness model in the horizontal direction
Download Citation | Vertical–horizontal coupling nonlinear vibration characteristics of rolling mill under mixed lubrication | Considering the dynamic influence of the roll vibration on the ...
This study establishes a vertical–horizontal coupling vibration model of hot rolling mill rolls under multi-piecewise nonlinear constraints considering the …
Metals 2021, 11, 170 4 of 24 Figure 2. Structure diagram of a four-high hot rolling mill. 2.1. Piecewise Nonlinear Spring Force Model The hydraulic elastic stiffness refers to the nonlinear ...
other metallic couplings, Martin Blue-Flex® grid Couplings have the ability to reduce vibration and cushion shock loads to driven and driving power transmitting equipment components . Progressive contact between the curved profile of the hub teeth and the flexible grid makes it possible to absorb impact energy by
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
Flexible Shaft Coupling Accessories - EK Series Elastomer Inserts, High Damping, A Type Shore 98A. Flexible Shaft Coupling - Oldham, Selectable Mounting Type, MOR Series. Flexible Shaft Coupling - Jaw, SPRFLEX, AL Series. Flexible Shaft Coupling - High Positioning Accuracy Double Disc, Clamping/Keyway. Flexible Shaft Coupling - Jaw, …
apparatus to predict the vibration spectrum for rotor misalignment. A 4 Jaw flexible coupling was used in the experiments. The rotor shaft accelerations were measured at rotor speed of 30 Hz i.e. 1800 RPM using accelerometer and a Dual Channel Vibration Analyzer (DCVA) under the aligned (baseline) and misaligned conditions.
Yun et al. formulated a 2-DOF coupling model by coupling the horizontal vibration and vertical vibration of rolls, then the expression of dynamic component of the rolling force was derived, and ...
In the process of strip rolling, mill vibration induces vertical and horizontal displacements in the rolls and rolled parts, affecting the accuracy of the rolling analysis model. Constant changes occurred in the rolling zone between the upper and lower working rolls due to mill vibration, resulting in slight vertical and horizontal displacements of …
The basic jaw coupling (known as an L-line, and pictured above next to "Compression Loaded" title), has many variations for specific applications. These include aluminum (lightweight) and stainless steel …
Vibrating Screens Bearing - Autoguard Elastomeric Coupling. Exporter of Vibrating Screens Bearing - Autoguard Elastomeric Coupling, SKF Vibratory Screen Spherical Roller Bearing, Ameridrives Gear Couplings offered by V W Impex, Chandigarh. horizontal vibrating mill flexible coupling 18724.
Download Citation | Study on Vertical-Horizontal Coupling Vibration of Mill Rolls Based on the Nonlinear Rolling Force Model | Based on the Orowan unit pressure differential equation, a vertical ...
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نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
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