期刊
MECHANISM AND MACHINE THEORY
卷 119, 期 -, 页码 1-21出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechmachtheory.2017.08.017
关键词
Constant force mechanism; Mechanism design; Compliant mechanism
资金
- National Natural Science Foundation of China [51575545]
- Macao Science and Technology Development Fund [090/2015/A3, 143/2016/A]
Constant-force mechanisms (CFMs) have become a hot research topic in recent years. Unlike conventional force control technology by using force sensor and controller, which leads to a complicated algorithm design and higher cost, the CFMs can provide a near constant force output by using the property of mechanical structure. Hence, the CFMs are widely used in overload protection, biomedical application, and robot end-effectors for providing a friendly interaction with the environment as well as micromanipulation for protecting the micro-objects from being damaged. This paper presents a survey of the state-of-the-art design and modeling approaches for constant-force mechanisms. According to the working principles, the CFMs are classified into five kinds of conventional rigid-link constant-force mechanisms and five kinds of fully compliant constant-force mechanisms. In addition, the comparisons between different types of the CFMs are discussed. In particular, compliant constant-force mechanisms emerge as promising devices owing to the specific advantages. Four modeling methods and five types of compliant constant-force mechanism designs are introduced in detail. The presented overview is helpful to those engaged in constant-force mechanism area to know the recent state and research tendency. (C) 2017 Elsevier Ltd. All rights reserved.
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