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http://dx.doi.org/10.5293/IJFMS.2016.9.1.039

Impact performance for high frequency hydraulic rock drill drifter with sleeve valve  

Guo, Yong (Engineering Research Centre of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology)
Yang, Shu Yi (Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology)
Liu, De Shun (Engineering Research Centre of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology)
Zhang, Long Yan (Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology)
Chen, Jian Wen (Jianglu Electro Mechanical CO. LTD.)
Publication Information
International Journal of Fluid Machinery and Systems / v.9, no.1, 2016 , pp. 39-46 More about this Journal
Abstract
A high frequency hydraulic rock drill drifter with sleeve valve is developed to use on arm of excavator. In order to ensure optimal working parameters of impact system for the new hydraulic rock drill drifter controlled by sleeve valve, the performance test system is built using the arm and the hydraulic source of excavator. The evaluation indexes are gained through measurement of working pressure, supply oil flow and stress wave. The relations of working parameters to impact system performance are analyzed. The result demonstrates that the maximum impact energy of the drill drifter is 98.34J with impact frequency of 71HZ. Optimal pressure of YZ45 rock drill is 12.8 MPa-13.6MPa, in which the energy efficiency reaches above 58.6%, and feature moment of energy distribution is more than 0.650.
Keywords
rock drill drift; sleeve valve; energy efficiency; impact energy; feature moment of energy distribution;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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