Method for improving fatigue strength of coupler knuckle and coupler knuckle

Method for improving fatigue strength of coupler knuckle and coupler knuckle

  • CN 105,109,513 A
  • Filed: 09/06/2015
  • Published: 12/02/2015
  • Est. Priority Date: 09/06/2015
  • Status: Active Application
First Claim
Patent Images

1. one kind for improving the method for hook tongue strength at repeated alternation, it is characterized in that, on the basis of existing No. 16 coupler knuckle for car couplers or No. 17 coupler knuckle for car couplers, by upper and lower for hook tongue traction convex root transition arc radius R is all increased to 10 ~ 12mm, thus improve hook tongue strength at repeated alternation.

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