吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 122-128.doi: 10.13229/j.cnki.jdxbgxb201701018

• Orginal Article • Previous Articles     Next Articles

Wear and limiting condition of three-axial timing chain system

FAN Cheng-yan1, XU Shu-xin1, WANG Hong-jun2, MENG Fan-zhong1   

  1. 1.Chain Transmission Institute,Jilin University,Changchun 130022,China;
    2.Hangzhou Donghua Chain Co., Ltd., Hangzhou 311102, China
  • Received:2015-09-18 Online:2017-01-20 Published:2017-01-20

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Abstract: On the basis of geometric layout of the timing chain system of the automobile engine, the influence of the lag angle of camshaft on phase change of the timing chain system is studied, and the constraint conditions of the timing chain wear limit elongation are put forward. According to the working condition of high speed, variable speed and variable load, the reliability test rule of the actual loading chain of the engine is designed. The rule also covers the sprocket and chain meshing impact. The idle speed and alternating load simulation tests of the domestic timing chain system and the MORSE timing chain system are carried out on a positive timing chain system simulation test bench. Results show that the initial wear is about more than 1/4 of the total wear elongation, which indicates that controlling the manufacturing precision of the parts and ensuring the assembly quality can significantly improve the service life of the timing chain. Meanwhile the dynamic response characteristics of tension the device are the key factors to improve the timing chain system dynamic characteristics.

Key words: mechanical design, automotive engine, timing silent chain, tension device, wear characteristics

CLC Number: 

  • TH132
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