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在对矩形巷道临时支护装置关键部件的研制过程中,为了研究其顶梁对巷道不同载荷类型的适应性,以及导轨在立柱移动支撑条件下的受力,利用ANSYS对其分别进行结构力学分析,并对装置的稳定性进行现场测试。结果表明:顶梁在中心位置处位移最大,受高应力均布载荷时,顶梁长度为4 m时处于弹性状态,5 m时产生塑性破坏,说明该临时支护装置能适应4~5 m巷宽的支护需要;导轨在5#立柱处受力最为不利,应力集中程度最高,弯矩最大,因此,在导轨强度设计时,应着重考虑弯矩最大的5#立柱处的受力。经试验,支护装置压力稳定,动作灵活可靠,未出现漏液现象,基本实现了预定的目标和要求。
In order to study the adaptability of the top beam to different load types of the roadway and the force of the guide rail under the moving support of the column in the development of the key components of the temporary supporting device of the rectangular roadway, the structure mechanics analysis , And the stability of the device on-site testing. The results show that the displacement of the roof beam is the largest at the center position. When the roof beam is 4 m in length, the roof beam is elastically deformed when it is loaded under high stress and plastic failure occurs at 5 m, indicating that the temporary supporting device can accommodate 4 ~ 5 m The width of the support is needed. The guide rail is the most unfavorable stress in the 5 # column, the stress concentration is the highest, and the bending moment is the largest. Therefore, in the design of the strength of the guide rail, the stress of the 5 # column with the largest bending moment should be emphatically considered. After testing, support device pressure stability, flexible and reliable action, did not leak phenomenon, the basic realization of the predetermined goals and requirements.