Characteristics Analyses of Energy Consumption for Boom Closed Circuit of Hydraulic Excavators

Abstract:

The boom with closed circuit in Hydraulic Excavators, which is made up of motor, hydraulic pump and accumulator, was put forward based on analysis of the operating condition of ordinary hydraulic excavators and mathematical models of system were built. Power characteristics of main power elements were obtained under typical operating conditions, and then the energy consumption characteristics were analyzed. The results show that the installed power and energy consumption will be reduced using boom with closed circuit, and no-load drop and full load rise of boom are the worst operating conditions.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 3491-3494
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.3491
• Online since: May 2012
• Authors: Ming Dong Chen, Ding Xuan Zhao*
• Keywords: Accumulator, Closed Circuit, Energy Saving, Hydraulic Excavator

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