摘要
为了解决现有超前液压支架移架过程中反复支撑破坏巷道顶板和锚网支护系统问题,研制了基于螺旋推进器的全方位行走式超前液压支架,采用换位前移的方式进行移架,避免了现有超前液压支架顺序前移带来的反复支撑问题。分析了现有超前支架存在的问题,介绍了全方位行走式超前液压支架的移架方式,阐述了该种支架的具体结构特点,研究了其力学特性,建立了相关运动学方程,给出了具体算例,为全方位行走支架的行走参数确定提供了理论依据。结果表明:该型支架结构简单、操作方便、行走可靠,仅需改变左右侧螺旋推进器的旋转方式,即可实现前移、后退、侧移和旋转等移动功能,可以解决现有超前液压支架顺序前移带来的破坏巷道顶板和锚网支护系统难题。
In order to solve problem of repeated support and damage to roof of roadway and bolt-mesh support system during the moving process of the existing advanced hydraulic support,omni-directional walking advanced powered support(OWAPS)based on auger was developed,and the shifting was carried out by means of transposition and forward movement.The problem of repeated support caused by the sequential advancement of the existing advanced hydraulic support was avoided.This report described the moving pattern and the structural characteristics of OWAPS and analyzed its mechanical characteristics.Meanwhile,the kinematics equation was concluded and a specific example was given,providing the theoretical basis for determining the walking parameters of the OWAPS.The results show that the OWAPS is easy to operate and can realize the moving functions such as forward,backward,lateral and rotating only by changing the rotation mode of left and right screw propellers.OWAPS meets requirements of easy operation and high reliability.It can solve problem of destroying the roadway roof and anchor net support system caused by the sequential advancement of the existing advanced hydraulic support.
作者
徐亚军
张德生
李丁一
XU Yajun;ZHANG Desheng;LI Dingyi(Coal Mining Technology Department,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China;Mining Design Institute,China Coal Research Institute,Beijing 100013,China)
出处
《煤炭科学技术》
CAS
CSCD
北大核心
2019年第10期161-166,共6页
Coal Science and Technology
基金
国家重点研发计划资助项目(2017YFC0804305)
天地科技创新创资金专项资助项目(2018-TD-MS020,2018-TD-QN026)
关键词
液压支架
超前支护
反复支撑
超前巷道
螺旋推进器
powered support
forward supporting
repeated supporting
advance roadway
screw propeller
