Research on Preventing Deflection Mechanism of the Auger Mining Machine

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Abstract:

Auger mining machine which is used in thin coal seam gets coal by drilling. Its drilling distance always is dozens of meters. Because of the long Drilling distance, the deflection of the drilling tool was produced by deviating force . In order to improve auger mining machine’s preventing deflection character and scope of application, the research on preventing deflection mechanism of auger mining machine combining theoretical analysis and experimental research was carried out on the basis of a simplified drilling tool structure. The studies we have performed showed that: increasing the drilling assembly bending rigidity or the drill pipe weight can prevent deflection; reducing the distance between the drilling stabilizer and drill is another method to reduce amount of deflection.

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Periodical:

Advanced Materials Research (Volumes 199-200)

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625-629

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Online since:

February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] R.A. Qayyum: Effects of bit geometry in multiple bit rock interaction(WVU CEMR, USA 2003).

Google Scholar

[2] O.Z. Hekimoglu and L. Ozdemir: Mining Technology Vol. 113 (2004), p.118.

Google Scholar

[3] E.M. Eyyuboglu and N. Bolukbasi: Tunnelling and Underground space Technology Vol. 20 (2005), p.418.

Google Scholar

[4] X.H. LI: Journal of Liaoning Technical University Vol. 26 (2007), p.748 (in Chinese).

Google Scholar

[5] C.S. Liu, K. Jing and Q. Yang: Journal of Liaoning Technical University Vol. 26 (2007), p.751 (in Chinese).

Google Scholar

[6] C.S. Liu, W.D. Wu, S.W. Song , et al: Machine Tool & Hydraulics Vo. l37 (2009), p.68 (in Chinese).

Google Scholar

[7] S.Y. Liu, C.L. Du and X.X. Cui: Mining Science and Technology Vol. 19 (2009), p.514.

Google Scholar

[8] S.Y. Liu, C.L. Du and X.X. Cui: Journal of Central South University(Science and Technology). Vol. 40 (2009), p.1281 (in Chinese).

Google Scholar

[9] X.K. Song: Design and Research on Aiguilles of the Auger Drill Miner(CUMT, China 2007) (in Chinese).

Google Scholar

[10] J. P Li: Study on design theory and key technology of the auger drill miner(CUMT, China 2006) (in Chinese).

Google Scholar

[11] L. Fu, C.L. Du and S.Y. Liu: Coal Mine Machinery Vol. 31(2010), p.111 (in Chinese).

Google Scholar