Open AccessA new type of pneumatic linear reciprocating actuator
Author(s) -
LI Xiao-rui,
Xingsong Wang,
Mengqian Tian
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1650/2/022085
Subject(s) - bellows , reciprocating motion , actuator , mechanical engineering , control theory (sociology) , piston (optics) , displacement (psychology) , rotary actuator , materials science , engineering , computer science , physics , electrical engineering , psychology , control (management) , optics , wavefront , artificial intelligence , gas compressor , psychotherapist
A new type of pneumatic linear reciprocating actuator based on the Sarrus mechanism is presented in this paper, which includes an external rigid deployable frame, and an internal flexible foldable bellows-type airbag, and a set of rubber bands. The actuator has advantages of large stroke, small volume, large expansion ratio, and elongation which can be controlled by air pressure. It can achieve reciprocating linear motion with a larger expansion ratio of 800%. This paper first introduces the structure of the rigid frame and airbag, and introduces the manufacturing process of the airbag under laboratory conditions. Then, the theoretical analysis of the actuator is carried out, and the air pressure displacement characteristic formula is introduced. Finally, the correctness of the characteristic curve is verified by experiments.