一种盾构机盾尾密封注脂系统

A Sealing Grease Injection System for Shield Tail of Shield Machine

提出一种盾构机盾尾密封注脂系统,该系统全部模块化设计,结合感应开关实现自动化工作。其核心元件气动注脂泵,作为该系统的调节单元,完全气动控制,按比例进行增压,油脂压力可以达到38.5 MPa。该系统包括与盾构机尾部适配的压油盘,压油盘外设有用于放置油桶的桥架,桥架通过两个对称设置的气缸带动升降。该系统的研究解决了国外对气动泵产品的垄断造成的采购维护不便,国内类似产品压力等级低、性能不可靠等问题,并通过试验验证了产品的可靠性。

A grease injection system for shield tail seal of shield machine is put forward.The whole system is designed in modularity,and the automatic work is realized by combining the inductive switch.As the regulating unit of the system,the core component of the pneumatic grease injection pump is fully pneumatically controlled and pressurized according to the proportion.The grease pressure can reach 38.5 MPa.The system consists of a pressure oil pan adapted to the tail of the shield machine.A bridge is arranged outside the pressure oil pan for placing the oil barrel.The bridge is driven up and down by two symmetrically arranged cylinders.The research of this system solves the problems such as the inconvenience of purchase and maintenance caused by the monopoly of foreign pneumatic pump products,the low pressure level of domestic similar products,and the unreliable performance,and the reliability of the products is verified through the test.