Design and strength analysis on components of electric starter towards pneumatic extinguisher

HE Ye-neng1, XIN Zhe2, ZHAO Hong-li3, YANG Kai4, YU Zhou5
(1.School of Jiaotong, Zhejiang Industry Polytechnic College, Shaoxing 312000, China; 2.College of Engineering, China
Agricultural University, Beijing 100083, China; 3.China Certification Center for Automotive Products Co., Ltd.,
Beijing 100044, China; 4.Qingdao Product Quality Supervision and Testing Research Center, Qingdao 266000,
China; 5.Geely Automotive Research Institute(Ningbo) Co., Ltd., Ningbo 315000, China)

Abstract: Aiming at the manual start of portable pneumatic extinguisher by rotating the impeller, the components of electric starter were designed. The strength of the key components were analyzed. In Pro/E, a threedimensional entity model of the starting mechanism of the portable pneumatic extinguisher was established, the static analysis of the finite element method was carried out with the workbench simulation platform of ANSYS. The strength of key components was checked according to the fourth strength theory of material mechanics. The reliability verification of the new start system of the portable pneumatic extinguisher was tested.An electric starting scheme suitable for the optional gasoline engine was put forward. The results indicate that the strength of the electric starting mechanism basically meets the working requirements, and it can stably start the highpower portable pneumatic extinguisher.
Key words: portable pneumatic extinguisher; design of electric starter; reducing mechanism; static analysis