Development and study on automatic balancer based on counter weight by magnetic force  

作　　者：Liu Heng Fan Hongwei Jing Minqing Wang Renchao Zhi Jingjuan 

机构地区：[1]School of Mechanical Engineering,Xi'an Jiaotong University

出　　处：《Engineering Sciences》2013年第1期35-38,共4页中国工程科学（英文版）

基　　金：The National Science and Technology Major Project of China(No.2010ZX04012-014)

摘　　要：Rotating machines are very sensitive to mass unbalance which has a harmful effect on its running accuracy and service life. Therefore,a variety of dynamic balancing methods and devices are studied to reduce the vibration caused by mass unbalance. On-line active balancing is a new balancing procedure which is more convenient and precise than the previous methods. In this paper,an electromagnetic balancer based on ring coils and permanent magnets is presented. The balancer has a simple structure and the self-locking function without clutch,and transfers power by the non-contact electromagnetic field. In order to justify the rationality of its design,a two-dimension(2D) electromagnetic finite element model is conducted to verify that this magnetic circuit has no flux leakage and saturation. A three-dimension (3D) 1/10 model of the balancer is built to obtain the self-locking torque and driving torque. Based on the research work above,an electromagnetic balancer is developed. By testing the balancer using COCO80,it is verified effective to reduce the rotor unbalance at the speed of 1300 r/min.

关 键 词：electromagnetic balancer magnetic circuit SELF-LOCKING driving 

分 类 号：TH210.7[机械工程—机械制造及自动化] TU833.12[建筑科学—供热、供燃气、通风及空调工程]