吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (4): 1136-1141.doi: 10.13229/j.cnki.jdxbgxb201604019

• Orginal Article • Previous Articles     Next Articles

Thermal characteristic analysis in hydraulic transmission system of wheel loader

WANG Zhen-bao, QIN Si-cheng, MA Run-da   

  1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • Received:2015-03-23 Online:2016-07-20 Published:2016-07-20

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Abstract: In order to solve the thermal characteristic requirements in hydraulic transmission system of loader, the heating mechanism and heat transfer process were analyzed. The heat balance model of the hydraulic transmission system was established based on the simplified heat balance calculation method, and heat production optimization model was built to reduce energy loss. For efficient calculation, simulation program was developed on Matlab. The power loss, quantity of heat and the temperature in the hydraulic transmission system of a ZL50 wheel loader were simulated under typical working condition, and the simulation results were compared with the test results. It is shown that the equilibrium temperatures of the transmission oil are within the normal working oil temperature scope under two kinds of operation mode. The heat balance model of the hydraulic transmission has good imitating accuracy and can predict the oil temperature rise curve. This research can provide a reference for the design and optimization of a hydraulic transmission system.

Key words: fluid power transmission and control, loader, hydraulic transmission, heat balance

CLC Number: 

  • TK81
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