접촉 위치에 따른 에스컬레이터용 스텝 롤러의 기계역학적 거동에 관한 연구
A Study on the Mechanical Behavior of a Step Roller for Escalators according to the Contact Location
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초록
An escalator which is widely used for step ascending system recently is operated by rotating chain below the escalator step connected with the sprocket which is located in upper part of the escalator. When the chain rotates, the sprocket wheel actually contacts with the step roller made of elastic urethane. As more people ride escalator or the rise of escalator gets higher, the larger reaction force is applied ona step roller which contacts with sprocket. Therefore, we must analyze the load condition and the appropriate rise of the escalator in which a step roller can sustain. So, in this study we got the vertical displacement on the contact surface of the step roller from the experiment of the roller contacting with a sprocket wheel, and compared it with that obtained from the nonlinear contact analysis. Then we analyze the stress of the step roller with respect to the change of thecontacting area between a step roller and a sprocket wheel.
Abstract
An escalator which is widely used for step ascending system recently is operated by rotating chain below the escalator step connected with the sprocket which is located in upper part of the escalator. When the chain rotates, the sprocket wheel actually contacts with the step roller made of elastic urethane. As more people ride escalator or the rise of escalator gets higher, the larger reaction force is applied ona step roller which contacts with sprocket. Therefore, we must analyze the load condition and the appropriate rise of the escalator in which a step roller can sustain. So, in this study we got the vertical displacement on the contact surface of the step roller from the experiment of the roller contacting with a sprocket wheel, and compared it with that obtained from the nonlinear contact analysis. Then we analyze the stress of the step roller with respect to the change of thecontacting area between a step roller and a sprocket wheel.
참고문헌 (9)
- KS B 6896, "Step Roller for Escalator", Korea Agency for Technology and Standards, ~ (2015)
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