摘要
对厚煤层、倾斜煤层的开采,液压支架的稳定性问题显得越来越突出。采用梁板构件对液压支架实体进行简化,与实体模型对比,从质量和重心位置验证了简化模型的正确性。研究支架纵横向稳定性,提出了描述支架纵横向倾倒和滑移的稳定系数。以ZY10800/28/63D型大采高液压支架为实例,分析了几何参数、荷载参数对稳定系数的影响,指出了导致支架失稳的原因。
In mining the thick coal seam and inclination coal seam, to maintain the stability of a hydraulic support becomes more and more important. First, the paper suggests the simplified model of the hydraulic support using a beam and plate. The correctness of the simplified model has been verified by comparing the quality and center posi- tion. Second, the vertical and horizontal stability of the hydraulic support was studied. The stability coefficients for describing the vertical and horizontal slippage and dumping of the hydraulic support were proposed. Taking ZY10800/28/63D large hydraulic support as an example, the influences of geometric parameters and load parame- ters on the stability coefficient were analyzed, and the reason of the instability was pointed out. Finally, according to the dumping and slippage characteristics of the hydraulic support, its control conditions on mining face were also studied.
出处
《机械科学与技术》
CSCD
北大核心
2013年第5期733-738,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
国家科技支撑计划项目(2009BAF41B01)资助
关键词
液压支架
工作面倾角
稳定性
滑移、倾倒
hydraulic support
mining face
inclination coal seam
thick coal seam
stability
slippage dumping
