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Mechanical model of breaking rock and force characteristic of disc cutter

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Abstract

According to the cutting characteristics of progressive spiral movement by rotary cutting of the disc cutter, using the broken theory of interaction of compression and shearing, the three-axis force rotary cutting mechanical model of disc cutter was established and the influence of installation radius, the phase difference and the cutter space on the mechanics of disc cutter were analyzed. The results show that on the same radial line of tunneling interface, the boring distance of cutting tools installed on a different radius is not equal. The cutting radial line of tunneling interface is a polyline and its height is determined by phase angle and penetration of cutting tools. Both phase difference and the installation radius between adjacent disc cutters have little effect on the vertical force and rolling force, but increase with the increase in cutter spacing. In addition, when increasing phase difference and cutter space bilaterally, and reducing installation radius simultaneously, the lateral force would be improved. Related results have been verified on100 t rotary tool cutting test platform.

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Authors and Affiliations

  1. State Key Laboratory of High Performance Complex Manufacturing (Central South University), Changsha, 410083, China

    Yi-min Xia  (夏毅敏), Tao Ouyang  (欧阳涛) & De-zhi Luo  (罗德志)

  2. China Nerin Engineering Co., Ltd, Nanchang, 330000, China

    Tao Ouyang  (欧阳涛)

  3. School of Materials Science and Engineering, Central South University, Changsha, 410083, China

    Xin-ming Zhang  (张新明)

Authors
  1. Yi-min Xia  (夏毅敏)
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  2. Tao Ouyang  (欧阳涛)
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  3. Xin-ming Zhang  (张新明)
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  4. De-zhi Luo  (罗德志)
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Corresponding author

Correspondence to Yi-min Xia  (夏毅敏).

Additional information

Foundation item: Project(2007CB714002) supported by the National Basic Research Program of China; Project(51074180) supported by the National Natural Science Foundation of China; Project(2010FJ1002) supported by Hunan Municipal Science and Technology Program, China

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Xia, Ym., Ouyang, T., Zhang, Xm. et al. Mechanical model of breaking rock and force characteristic of disc cutter. J. Cent. South Univ. 19, 1846–1852 (2012). https://doi.org/10.1007/s11771-012-1218-8

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  • DOI: https://doi.org/10.1007/s11771-012-1218-8

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