Mechanical model of breaking rock and force characteristic of disc cutter

被引：37
作者：
Xia Yi-min [1 ]
Ouyang Tao [1 ,2 ]
Zhang Xin-ming [3 ]
Luo De-zhi [1 ]
机构：
[1] Cent S Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China
[2] China Nerin Engn Co Ltd, Nanchang 330000, Peoples R China
[3] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
来源：
JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2012年 / 19卷 / 07期
基金：
中国国家自然科学基金;
关键词：
mechanical model; phase angle; installation radius; cutter space; disc cutter;
D O I：
10.1007/s11771-012-1218-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
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.
引用
收藏
页码：1846 / 1852
页数：7
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