吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 486-491.doi: 10.13229/j.cnki.jdxbgxb20161245

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Reasonable pre-tension research of crawler traveling gear of hydraulic excavator

LIU Han-guang1, 2, WANG Guo-qiang3, MENG Dong-ge1, ZHAO Huan-yu3   

  1. 1.Jiangsu Xuzhou Construction Machinery Research Institute, Xuzhou 221004, China;
    2.Jiangsu Xuzhou State Key Laboratory of Intelligent Manufacturing of Advanced Construction Machinery, Xuzhou 221004, China;
    3.College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • Received:2016-11-18 Online:2018-03-01 Published:2018-03-01

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Abstract: The research focuses on the determination of reasonable pre-tension of crawler traveling gear of hydraulic excavator. The virtual prototype model of the excavator was established in the multi-body dynamics software RecurDyn. The pre-tension curves of the crawler traveling gear were obtained by experiments under three working conditions, horizontal straight, pivot steering and differential steering. Experiment results verified the accuracy of the virtual prototype model by comparing with the simulation results. By simulation analysis of three typical working conditions, horizontal straight, climbing, and pivot steering, the changes of the track tension during movement on wheel were obtained with the transformations of pre-tension of the crawler driving device. According to the judgment of the fluctuations based on the standard deviation of the tension curves, the reasonable proportional coefficient between the pre-tension and vehicle weight is received.

Key words: mechanical engineering, hydraulic excavator, virtual prototype model simulation, pre-tension

CLC Number: 

  • U469
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