Study of the Press Fit Bearing‐Shaft Joint Dimensional Parameters by Analytical and Numerical Approach

Murčínková, Zuzana; Baron, Petr; Pollák, Martin

doi:10.1155/2018/2916068

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…In this method, the pin is forced into correct position in the joint, reaching the interference fit with the contacting surfaces. This solution has negative/zero installation tolerance and zero operational tolerance, and the performance of this method has been studied both numerically, analytically, and experimentally over the years [9,10].…”

Section: Literature Reviewmentioning

confidence: 99%

An Investigation of the Effects and Consequences of Combining Expanding Dual Pin with Radial Spherical Plain Bearings

Karlsen

Lemu

Berkani³

2022

Applied Mechanics

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An expanding pin locks the pin assembly to its supports and bearings and prevents any relative movements between the surfaces in contact. In this study, the diameter changes of the bearing inner ring as a function of the expanding pin’s tightening torque were studied. In addition, the required rotational moment of a set of complete bearings locked to an expanding pin solution was studied by exposing the assembly to a combination of an increasing radially outwards directed load from the bolt torquing and a radially external inwards directed load from a hydraulic jack. The bearings were of type Radial Spherical Plain Bearings (RSPBs), GE 80 ES, steel/steel, and loaded externally up to their maximum dynamic limit of 400 kN. The results indicate a major reduction in the required rotation moment of the bearing when the bearing inner ring is expanded by use of an expanding pin. The reduction of rotation moment indicates reduced contact pressure and friction force between the two bearing rings, which ultimately can have a reduced effect on ring surface wear and a positive effect on the bearing operational lifetime.

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Section: Literature Reviewmentioning

confidence: 99%

An Investigation of the Effects and Consequences of Combining Expanding Dual Pin with Radial Spherical Plain Bearings

Karlsen

Lemu

Berkani³

2022

Applied Mechanics

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“…Moreover, the surface irregularity resulting from for example the guideway errors, errors of rotary elements, by thermal expansion of elements or by fixing the workpiece [5,6]. The bearing inner race is thin-walled and thus after pressing the inner race on the shaft, the dimension after pressing and the final clearances are achieved by shaft tolerance size and accuracy of shaft geometry up to 90% [7]. After mounting, the bearing working clearance is smaller and the shape of the shaft surface is "copied" on the shape of the inner bearing race.…”

Section: Printing Section Arrangementmentioning

confidence: 99%

Macroscopic dynamic response of mechanical systems involving composites and effect of inner structure on damping properties

Murčínková

2019

Mechanik

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The paper deals with relation between inner structure of the machine and the composite material used in it and macroscopic dynamic response. It presents the experimental results of testing the relation between inner composite material structure and damping properties presented by logarithmic decrement quantity. Moreover, the paper provides the case study of application the composite material layered structure to the flexographic printing machine and results of that applications presented by printing speed.

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“…From the space between the seals, a certain amount of buffer liquid enters the sealed casing of the rotary machine (through the internal seal) and into the atmosphere (through the external seal). Such a scheme not only promotes lubrication, flushing and cooling of the seal, but also allows you to completely eliminate leakage of the sealed product into the area behind the seal [3,4]. Double sealing systems, in which both seals are mechanical, are recognized as the most effective among the existing ones.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the Operational Characteristics of the Impulse Gas-Barrier Face Seal

Kuznetsov,

Pandová

2023

Management Systems in Production Engineering

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The problem of reducing leaks along the pump or compressor shaft of pumped liquids and gases into the environment is very urgent. Serious difficulties have to be faced when sealing the shafts of machines that pump aggressive, toxic, explosive and fire-hazardous environments. According to modern occupational safety requirements, such pumps and compressors should use double seals with a barrier medium whose pressure exceeds the sealed one by 0.05-0.2 MPa. Currently, liquid-lubricated double mechanical seals are widely used in chemical production equipment, however, over the last decade of the 20th century, leading companies have developed a number of designs of double gas mechanical seals for pumps and chemical production devices, which significantly exceed liquid-lubricated seals in their performance characteristics. The vast majority of these seals use a gas-dynamic principle of operation, i.e. spiral, logarithmic, T-shaped or other micro grooves are made on the sealing faces of their rings, which, when rotated, create an additional gas dynamic force that ensures the functioning of these seals with a micron gap between the sealing pair. In this paper, the design, principle of operation and engineering methodology for calculating the main characteristics of a impulse gas barrier face seal, in which one pair of sealing rings performs the functions of a double mechanical seal, is considered. The design is simple, compact and, thanks to the more advanced principle of creating a gap between the sealing pair, is able to maintain operability in a wide range of sealing and barrier pressures. The existing experience of operating seals of this type on chemical production pumps has confirmed their high efficiency, reliability and safety.

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Study of the Press Fit Bearing‐Shaft Joint Dimensional Parameters by Analytical and Numerical Approach

Cited by 11 publications

References 12 publications

An Investigation of the Effects and Consequences of Combining Expanding Dual Pin with Radial Spherical Plain Bearings

An Investigation of the Effects and Consequences of Combining Expanding Dual Pin with Radial Spherical Plain Bearings

Macroscopic dynamic response of mechanical systems involving composites and effect of inner structure on damping properties

Calculation of the Operational Characteristics of the Impulse Gas-Barrier Face Seal

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