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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27 , No. 2

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[ Technical Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 2, pp. 160-166
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Apr 2018
Received 22 Jan 2018 Revised 26 Feb 2018 Accepted 02 Mar 2018
DOI: https://doi.org/10.7735/ksmte.2018.27.2.160
압축스프링을 이용한 수술등의 평형장치
신응수^a^{, *}

Balancers for an Operating Lamp using Compression Springs
Eung-Soo Shin^a^{, *}
aSchool of Mechanical Engineering, Chungbuk National University, 1, Chungdae-ro, Seowon-gu, Cheongju, Chungbuk-do, 28644, Korea
Correspondence to : ^Tel.: +82-43-261-3159, Fax: +82+43+263-2448, E-mail address:*esshin@cbnu.ac.kr (Eung-Soo Shin).



Funding Information ▼ Chungbuk National University

Abstract

This study presents an operating light system with spring balancers that perform gravity compensation at arbitrary positions in the workspace. The spring balancers, which are made of nominal compression springs with zero-free-length (ZFL) characteristics, are designed by determining the spring constant, spring attachment points, and the ZFL parameters. A test rig is developed to validate the performance of the balancers, and the unbalanced forces are measured by changing the vertical position of the astral lamp. Results show that the developed spring balancers effectively ensure gravity compensation, independent of the lamp position. Equilibrium errors are observed to be approximately 7-8 %, which are caused by some additional weight due to auxiliary linkages and the springs.


Keywords: Operating lamp, Spring balancers, Gravity compensation, Zero-free-length, Compression spring

Acknowledgments

이 논문은 2015년도 충북대학교 학술연구지원사업의 교내연구비 지원에 의하여 연구되었음.

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