Effects of Several Design Factors on the Driving out Force of the Shaft in a Shrink-fitted Roller

DOI IR HANDLE

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  • 焼嵌め式ローラにおける軸の抜け出し駆動力に及ぼす設計要因の影響

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Abstract

<p>Shrink-fitted ceramic sleeve rollers can be used efficiently for conveying high-temperature steel plates in steel manufacturing industries. However, coming out of the shaft sometimes happens from the ceramic sleeve during the cyclic loading because only a small shrink fitting ratio can be used. In this study, numerical simulations are performed based on the simplified 2D roller model with stopper. The inner shaft gradually comes out until stopped by the stopper under the standard simulation condition. This is because a kind of driving out force Fd is generated on the shaft when the load is applied. The driving out forces Fd can be calculated as the contact force at the stopper. To investigate the effects of several design factors on the driving out forces, the friction coefficient, shrink-fitted ratio and shrink-fitted length are changed during the analysis. Suitable conditions are discussed to reduce the driving out force and prevent this failure.</p>

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