Patent ID: 11391642

Abstract:
A portable pneumatic loading system for simulating the operation of a subway train is provided, comprising a control cabinet, an powered air station and an air cylinder, wherein a proportional directional valve is disposed between the control cabinet and the powered air station, a control cabinet is connected to the powered air station through an air inlet pipe, and the powered air station is connected to the air cylinder through a hose; a PLC, a switching power supply and a guide rail are arranged in the control cabinet, with the PLC and the switching power supply being connected through signal lines to a wiring terminal fixed on the guide rail; a frequency regulating knob, an emergency stop switch, a main start button, a power start button and a power indicator are embedded in five through holes formed on a door of the control cabinet, respectively; a signal line led out from the top of the control cabinet is connected to the proportional directional valve; and, the air cylinder is connected to the proportional directional valve through a hose. The present invention has the following advantages: the system is light, flexible and portable, and can enter subway tunnels under various working conditions; and, the design is novel and reasonable, the operation is simple, the actual engineering operation is highly feasible, and the on-site adjustment process is more visible.