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

Guo, Yong; Yang, Shu Yi; Liu, De Shun; Zhang, Long Yan; Chen, Jian Wen

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

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자료유형: 학술저널

저자정보: Guo, Yong Yang, Shu Yi Liu, De Shun Zhang, Long Yan Chen, Jian Wen

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.9 No.1

발행연도: 2016.3

수록면: 39 - 46 (8page)

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

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연구주제

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연구배경

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연구방법

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연구결과

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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.

#energy efficiency #feature moment of energy distribution #impact energy #rock drill drift #sleeve valve

참고문헌 (17)

참고문헌 신청

[학술지(정기간행물)] - Lin, Y. Z. / 2014 / Overview of research status on hydraulic rock drill / Hydraulic Pneumatics &Seals 34 (2) : 1 ~ 4

[학술지(정기간행물)] - 오주영 / 2012 / Modeling and Performance Analysis of Rock Drill Drifters for Rock Stiffness / International Journal of Precision Engineering and Manufacturing 13 (12) : 2187 ~ 2193

[학술지(정기간행물)] - Li X. B. / 2005 / Comparative analysis and development trend of rock drill / Engineering Sciences 3 (9) : 81 ~ 84

[학술지(정기간행물)] - Chiang L. E. / 2004 / Dynamic force-penetration curves in rock by matching theoretical to experimental wave propagation response / Experimental Mechanics 34 (2) : 167 ~ 175

[학술지(정기간행물)] - Russell, A. C. / 2014 / Rigs, rods and bits review / Engineering and Mining Journal 215 (3) : 38 ~ 41

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