隧道掘进机推进油缸导向套防松结构研究与设计

隧道掘进机以其安全、快速、经济、环保的优势广泛应用于地下隧道的掘进,其中液压推进系统在掘进机上占有重要的地位,它控制着掘进机整体向前掘进。在恶劣的工况下,推进油缸会受到非周期性的振动,以螺纹为连接方式的导向套在受到振动之后容易发生松动,从而导致推进油缸不能正常工作。针对这类情况,设计出一种新型导向套防松结构,并基于有限元软件ANSYS Workbench进行仿真分析,验证了设计的合理性,提高了掘进机的安全性和可靠性。

Research and Design for the Guide Sleeve Anti-loosing Structure of Propulsion Cylinder in the TBM

Tunnel boring machine(TBM) is wildly used in the underground tunnel boring for its advantages of safety, fast running, economy and environment friendly. The hydraulic propulsion system which is an important part in TBM controls the boring direction. In severe cases, the propulsion cylinder will be subjected to non-periodic vibration. The guide sleeve connected with thread leans to loosen after suffering vibration, which leads to abnormal working of the pushing cylinder. In view of this situation, a new kind of guide sleeve anti loose structure was designed. The simulation was conducted based on the finite element software ANSYS Workbench. The results show that the design can complete the task stably. This design improves the safety and reliability of the TBM.