吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (03): 665-669.

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Full hydraulic drive system of minitype loader based on secondary regulation technique

LIU Shun-an,YAO Yong-ming,SHANG Tao,CHEN Yan-li,MIAO Miao   

  1. College of Mechanical Science and Engineering|Jilin University|Changchun 130022|China
  • Received:2010-03-29 Online:2011-05-01 Published:2011-05-01

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Abstract:

The working principle of the full hydraulic drive system was described, and a new full hydraulic drive system featuring the application of a new secondary regulation component, hydraulic transformer(HT), and a hydraulic accumulator was constructed for the walking and working systems of a minitype loader. A mathematical model was built for the pressure transforming ratio of the HT, and also a mathematical model for the accumulator. The relationship of the characteristic parameters versus the HT port plat control angle was analyzed by simulation. The result showed the superiority of the proposed full hydraulic drive system over the traditional loader walking drive system.

Key words: hydraulic transmission and control, secondary regulation, minitype loader, full hydraulic drive, hydraulic transformer, hydraulic accumulator

CLC Number: 

  • TH137
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