승강기용 안전장치 개발에 관한 연구
A Study on development Elevator Safety device
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In this study, the elevator safety device was investigated analytically. It is the only safety device that can lift the brake in an emergency situation. When the safety device is in contact with the guide rail and the brakes applied, the structure can be stopped due to the friction occurring between them. Study on the shape of the portion contacting the safety device and the guide rail wedge directly were performed based on four cases. Each cases were classified according to the contact conditions. The contact conditions are mainly line contact, surface contact, and point contact. According to the contact conditions, the frictional stress due to the forced displacement that occurred during the elevator braking is also considered. For the perpendicular guide rail and sliding distance, the braking force shows excellent results for the line contact conditions. The results also showed less distribution.
Abstract
In this study, the elevator safety device was investigated analytically. It is the only safety device that can lift the brake in an emergency situation. When the safety device is in contact with the guide rail and the brakes applied, the structure can be stopped due to the friction occurring between them. Study on the shape of the portion contacting the safety device and the guide rail wedge directly were performed based on four cases. Each cases were classified according to the contact conditions. The contact conditions are mainly line contact, surface contact, and point contact. According to the contact conditions, the frictional stress due to the forced displacement that occurred during the elevator braking is also considered. For the perpendicular guide rail and sliding distance, the braking force shows excellent results for the line contact conditions. The results also showed less distribution.
참고문헌 (6)
- D. B. Kim, "A Study on Link Type Safety Device for Lift", M. S., pp.2013
- 조인성, "엘리베이터 카 도어의 강도 해석에 관한 연구", 한국기계기술학회지, 16(1), pp.1195~1200 (2014), 한국기계기술학회
- K. B. Kab, "Vibrational Analysis and Design for Fork-typed Elevator", Journal of Korean Soc. of Mechanical Technology, 5(2), pp.97~99 (2003)
- K. T. Jung, "Stress Analysis of Elevator Guide Rail at Operating of Safety Device", Proceedings of the KSMPE Conference, pp.108~ (2012)
- K. T. Jung, "Simulation of Linked Type Safety Device of Elevator", Proceedings of the KSMPE Conference, pp.121~ (2012)
- Raymond A. Serway, "Physics for scientis-ts engineers with modern physics", Cengage Learning, pp.100~ (2015)