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A Single-DoF Self-Regulated Gravity Balancer for Adjustable Payload

[+] Author Affiliations
Yu-Lin Chu, Chin-Hsing Kuo

National Taiwan University of Science and Technology, Taipei, Taiwan

Paper No. DETC2016-59930, pp. V05AT07A069; 6 pages
doi:10.1115/DETC2016-59930
From:
  • ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5A: 40th Mechanisms and Robotics Conference
  • Charlotte, North Carolina, USA, August 21–24, 2016
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5015-2
  • Copyright © 2016 by ASME

abstract

This paper presents a single-degree-of-freedom (single-DoF) gravity balancer that can deal with variable payloads. The proposed design is made of a standard spring-based statically-balanced mechanism and a spring adjusting mechanism. The installation points of the balancing spring are controlled by two cables. When the payload is applied, the spring adjusting mechanism will drive the two cables to regulate the spring installation points to suitable locations for balancing purpose. The significant novelty of the proposed design is that the balancer can sense the change of the payload and then automatically regular its spring attachment, which are all done by pure mechanical solution, i.e., with no electrical sensor or actuator. A prototype is built up to test the proposed design.

Copyright © 2016 by ASME
Topics: Gravity (Force)

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