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On the Design Parameters of Gerotor Hydraulic Motors

제로터 유압 모터의 설계 변수에 관한 연구

  • 김충현 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김두인 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 안효석 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 정태형 (한양대학교 기계설계학과 대학원) ;
  • 이성철 (인하공업전문대학교)
  • Published : 1999.03.01

Abstract

A Gerotor hydraulic motor is a planar mechanism consisting of a pair of rotors one of which encloses another rotor. The motion of the inner-rotor relative to the outer-rotor is produced by the pressure difference between the adjacent chambers. A design method of inner-rotor tooth profile using unit tangential vectors is presented in this work. Based on the relationships derived, the influence of the eccentricity of inner-rotor and the radius of circular arc tooth on the flow rate, torque and curvatures were investigated. It was shown that the flow rate and mean torque is proportional to eccentricity, but inversely proportional to the radius of circular arc teeth. Also, the maximum value of the equivalent curvature is increased as the eccentricity and the radius of circular arc teeth increased.

Keywords

References

  1. Mechanisms and Machine Theory v.9 The Geometry of Trochoid Envelopes and Their Application in Rotary Pumps Colboume,J.R.
  2. SAE paper No. 840454 Development of Oil Pump Rotors with a Trochoidal Tooth Shape Saegusa,Y.;Urashima,K.;Sugimoto,M.;Onoda,M.;Koiso,T.
  3. J. of CSME v.10 no.1 Mathematical Model for the Profile of Gerotor Pumps Tsay,C.B.;Yu,C.Y.
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  6. 한국 윤활 학회지 v.11 no.2 유압 모터에 사용되는 제로터의 설계 및 해석 이성철;이성남