• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2021, Vol. 57 ›› Issue (13): 252-261.doi: 10.3901/JME.2021.13.252

Previous Articles     Next Articles

Theoretical Solution and Profile Analysis of Working Surface for Double-disk Grinding of Tapered Roller

LIANG Lei, CHEN Guang, ZHANG Jing, GENG Kun, HE Chunlei, REN Chengzu   

  1. Tianjin Key Laboratory of Equipment Design and Manufacturing Technology, Tianjin University, Tianjin 300350
  • Received:2020-08-11 Revised:2021-01-15 Online:2021-07-05 Published:2021-08-31

Abstract: According to the principle of conjugate surface, the ideal surface equation of the working surfaces of the grinding disc in the double disc superfinish grinding of tapered roller is solved by the envelope method and its surface characteristics are analyzed. Based on the working requirements of the grinding disc, the spatial relationship and relative movement of the upper grinding disc, the lower grinding disc and the tapered roller are analyzed. The envelope method was used to solve the working surface of the grinding disc, and the ideal shape equation is established. Analyzed the characteristics of spiral groove working surface and the contact characteristics of spiral groove and tapered roller through numerical calculation, the result shows that the normal section profile of working face 1 and working face 2 are theoretically concave curves. The maximum convexity of the shaft profile of working face 1 is about 0.012 μm, which can be simplified as a straight line; The spiral groove working surface is a complex surface with a constantly changing shaft profile. The tapered roller is in line contact with the spiral groove, the curve is not in the shaft section of the roller, the position of the line is related to the motion parameter β. The accurate calculation method of the profile parameters of the spiral groove working surface is given, and the change of the shaft section profile of the spiral groove working surface is analyzed.

Key words: tapered roller, double-disk grinding, spiral groove, conjugate surface, surface profile, contact line

CLC Number: