Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Analysis of the Friction Characteristics of Parking Brake for Excavator According to Manufacturing Methods of Friction Disc

굴삭기용 주차 브레이크의 마찰 판 제작방법에 따른 마찰특성 분석

  • Lee, Y.B. (Department of System Reliability, Korea Institute of Machinery and Materials) ;
  • Sung, B.J. (Department of System Reliability, Korea Institute of Machinery and Materials) ;
  • Park, J.W. (Department of System Reliability, Korea Institute of Machinery and Materials) ;
  • Kim, K.M. (WooRim Machinery Co. Ltd.)
  • 이용범 (한국기계연구원 시스템신뢰성 연구실) ;
  • 성백주 (한국기계연구원 시스템신뢰성 연구실) ;
  • 박종원 (한국기계연구원 시스템신뢰성 연구실) ;
  • 김광민 (우림기계(주))
  • Received : 2012.08.17
  • Accepted : 2012.10.08
  • Published : 2012.12.31
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Abstract

The parking brake embedded in track driving motor for driving an excavator is composed of wet type multi-friction discs. This type parking brake can be designed more compact because the combination of some sheets of friction discs generate great braking power, and also it has good braking characteristic and long life time because it works in the oil. In this study, we analyzed torque characteristic of the parking brake through simulations and performed experiments by use of 3-kinds of paper friction sheet manufactured by different pressing methods. And, we compared the maximum static friction coefficient and torque characteristic with the simulation results and confirmed the optimal manufacturing process through this result.

Keywords

References

  1. Y. B. Lee, K. M. Kim, 2012, "Analysis of the Friction Characteristics of Parking Brake for Large Size Excavator", Trans of the KSPSE, Vol. 16, No. 2, pp. 5-10.
  2. H. J. Suh, 2007, "Performance test and evaluation of wet frictional material for the wheel brake of vehicle", Inha University, 1-27.
  3. J. I. Kang, H. K. Han, O. K. Kwon and W. S. Choi, 1990, "A study on the frictional characteristics of wet clutch friction materials in accordance with compositions", Trans of the KSAE, Vol. 12, No. 4, pp. 56-64.
  4. Y. B. Lee and K. M. Kim, 2011, "Test Analysis of Parking Brake for the Track Drive Unit of Excavator", Trans of the KSME(B), pp. 1157-1162. https://doi.org/10.3795/KSME-B.2011.35.11.1157
  5. D. S. Jung, H. Y. Son, Y. H. Lee and S. T. Park, 1988, "The Development of a Wet Multi Type Electro-Magnetic Clutch/Brake", KIMM, B- SM 145-1203C, pp. 33-38.

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