A Study on the Design and Measurement of a Balancing Device for Unbalance Correction of Differential Gear Case in Automobile

자동차 Differential gear case 불평형 교정을 위한 balancing 장치설계 및 측정에 관한 연구

  • Jang, T.H. (Dept. of Nanomechatronics Engineering, Pusan National University) ;
  • Gwon, J.U. (Dept. of Nanomechatronics Engineering, Pusan National University) ;
  • Eum, J.H. (Convergence Business Division, SMEC Co., Ltd) ;
  • Kim, J.A. (Convergence Business Division, SMEC Co., Ltd) ;
  • Kim, T.G. (Dept. of Nanomechatronics Engineering, Pusan National University)
  • 장태환 (부산대학교 나노메카트로닉스공학과) ;
  • 권진욱 (부산대학교 나노메카트로닉스공학과) ;
  • 엄지현 ((주) SMEC 융복합사업부) ;
  • 김정아 ((주) SMEC 융복합사업부) ;
  • 김태규 (부산대학교 나노메카트로닉스공학과)
  • Received : 2020.11.05
  • Accepted : 2020.11.13
  • Published : 2020.11.30

Abstract

A vehicle's differential gear is a device designed to allow the vehicle's outer wheels to turn faster than the inner wheels when turning on a curve. The differential gear case is the main component of the differential gear system, which is composed of ring gear, pinion gear and side gear, and is fastened by pinion shaft pins. The differential gear case rotates when the vehicle is running, so balancing calibration is very important. In this study, a balancing machine that can diagnose and correct the differential gear case and mass imbalance of various rotating bodies was designed. The differential gear case was rotated at high speed to accurately diagnose the location and value of the unbalanced mass, and it was designed to be balanced and corrected by removing the unbalanced mass by drilling. After calibration, it was confirmed that the unbalanced value of all the measured samples was reduced to less than 180g.mm, and the unbalance reduction ratio was improved to 60~70%.

Keywords

References

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