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金属矿山 ›› 2021, Vol. 50 ›› Issue (07): 186-192.

• 机电与自动化 • 上一篇    下一篇

地下铝土采矿机导向行走装置的磨损原因与对策

章立强1,2   

  1. 1. 中国煤炭科工集团上海有限公司,上海 200030;2. 天地科技股份有限公司上海分公司,上海 200030
  • 出版日期:2021-07-15 发布日期:2021-08-06
  • 基金资助:
    天地科技股份有限公司科技创新创业资金专项重点项目(编号:2020-TD-ZD016)

Wear Reasons and Countermeasures of Guide Walking Device of Underground Bauxite Mining Machine

ZHANG Liqiang1,2   

  1. 1. Shanghai Co., Ltd. of China Coal Technology & Engineering Group, Shanghai 200030,China;2. Shanghai Branch of Tiandi Science & Technology Co., Ltd., Shanghai 200030,China
  • Online:2021-07-15 Published:2021-08-06

摘要: 针对地下铝土采矿机导向行走装置磨损失效问题,根据各零部件磨损现象,进行了理论分析验证了实际磨损的状态,给出了不同综合磨损量对应的行走轮与轨道齿面啮合位置图;进行了多个影响因素分析 ,从开采岩石块度与硬度、导向滑靴与轨道的综合磨损量、开采工艺3个主要影响因素进行了详细分析。根据分析内容,提出了解决磨损的对策,分别从改善开采条件、优化设备、强化维护3个方面进行了具体阐述。 完成了改进验证工作,并对结构改进后的导向行走装置进行了2次试验,通过近0.5 a试验表明,采矿机新型导向行走装置寿命由原有的1个月提高至3个月以上。在此基础上,进一步分析认为提高采矿机导向行走装置 的使用寿命的关键在于减少硬质块状矿岩对轨道处啮合系统的影响,设备、维护、环境等多方面协作更有利于磨损问题的改善,进一步解决磨损问题的研究方向包括轨道结构、导向行走装置的配套结构、分离硬质块 状矿料方法。

关键词: 地下开采, 地下铝土矿, 采矿机, 导向行走装置 , 齿啮合, 综合磨损量, 行走轮, underground mining, underground bauxite, mining machine, guide walking device, teeth meshing, comprehensive wear, walking wheel, track cogging轨道齿槽

Abstract: In view of the wear failure problem of the guide walking device of the underground bauxite mining machine, according to the wear phenomenon of each part, the actual wear state is analyzed and verified, the meshing position diagram of running wheel and track tooth surface corresponding to different comprehensive wear is given, and the influence factors are analyzed.In this paper, the influence factors of rock fragmentation and hardness, comprehensive wear of guide shoe and track, and mining technology are analyzed in detail. According to the analysis, the countermeasures is put forward to solve the wear and tear, and expounds in detail from three aspects of improving mining conditions, optimizing equipment and strengthening maintenance. The work of improvement and verification has been completed,after the structure improvement, the guide walking device has been tested twice. Through the test of nearly half a year, the life of the new guide walking device of the mining machine has been increased from 1 month to more than 3 months. Based on the above discussion results,the further analysis results show that the key point is to reduce the influence of hard lump rock on the meshing system of track, and the cooperation of equipment, maintenance and environment is more favorable to the improvement of wear problem.The further research direction of solving the problem of wear is put forward, including the track structure, the matching structure of guiding device and the method of separating the hard massive mineral.