Wing Aerodynamic loading device

Wing pneumatic loading device, belonging to the wing technical field strength test, the present invention is applied to solve the wing using complex load operation of the hydraulic system does not have the problem of portability. The present invention comprises an air pump, an electromagnetic proportional valve, six-way pipe joints, n-solenoid valves, n-cylinders and a control unit; pump outlet port and the solenoid proportional valve into the intake port communicates, the solenoid proportional valve outlet port with the six-way pipe fitting the air inlet in communication, the six-way pipe joints the n outlet-one correspondence communication with the n solenoids air inlet, respectively, any one of the outlet and a cylinder of the solenoid valve into the intake port communicates; pressure command from the control unit output terminal pneumatic control terminal connected to the electromagnetic proportional valve; n-way switch command from the control unit output terminals are correspondingly connected to the n control terminal of the solenoid valve; wherein: n = 2 ~ 6.