Summary of the invention
To the present invention seeks to adopt hydraulic system to wing imposed load complicated operation in order solving, not there is the problem of portability, a kind of wing Pneumatic loading is provided.
Wing Pneumatic loading of the present invention, it comprises air pump, electromagnetic proportional valve, six connections for breather pipe, a n solenoid valve, a n cylinder and control part;
The gas outlet of air pump is communicated with the air intake of electromagnetic proportional valve, the gas outlet of electromagnetic proportional valve is communicated with the air intake of six connections for breather pipe, the n of a six connections for breather pipe gas outlet respectively with the air intake corresponding connection one by one of n solenoid valve, the gas outlet of any one solenoid valve is communicated with the air intake of a cylinder;
The air pressure instruction output end of control part is connected with the air pressure control end of electromagnetic proportional valve;
The n way switch instruction output end of control part connects one to one with the control end of n solenoid valve respectively;
Wherein: n=2 ~ 6.
Advantage of the present invention: the compare advantage of hydraulic system maximum of wing Pneumatic loading of the present invention is its portability and convenient operation.Send instruction by computing machine, by the switch of Micro Controller Unit (MCU) driving multipath electrovalve, and then control each road cylinder and whether export gas, and the size of cylinder power output, can guarantee that by pneumatic pressurizing system of the present invention wing is under the condition of distortion, assurance can meet required power and the moment of flexure with loading of wing.
Embodiment
Embodiment one: below in conjunction with Fig. 1 and Fig. 2, present embodiment is described, wing Pneumatic loading described in present embodiment, it comprises air pump 1, electromagnetic proportional valve 2, six connections for breather pipe 3, a n solenoid valve 5, a n cylinder 8 and control part 9;
The gas outlet of air pump 1 is communicated with the air intake of electromagnetic proportional valve 2, the gas outlet of electromagnetic proportional valve 2 is communicated with the air intake of six connections for breather pipe 3, the n of six connections for breather pipe 3 gas outlet respectively with the air intake corresponding connection one by one of n solenoid valve 5, the gas outlet of any one solenoid valve 5 is communicated with the air intake of a cylinder 8;
The air pressure instruction output end of control part 9 is connected with the air pressure control end of electromagnetic proportional valve 2;
The n way switch instruction output end of control part 9 connects one to one with the control end of n solenoid valve 5 respectively;
Wherein: n=2 ~ 6.
Control part 9 comprises computing machine 901 and single-chip microcomputer 902, and the instruction output end of computing machine 901 is connected with the instruction output end of single-chip microcomputer 902, and the air pressure instruction output end of single-chip microcomputer 902 is connected with the air pressure control end of electromagnetic proportional valve 2;
The n way switch instruction output end of single-chip microcomputer 902 connects one to one with the control end of n solenoid valve 5 respectively.
The diverse location of the corresponding wing in position of principle of work: a n cylinder 8 gas outlets, the control that present embodiment realizes is whether diverse location cylinder 8 exports gas, and the size of output gas pressure, and then better carry out ionization meter and the fatigue strength measurement of wing.By given experiment parameter, just can realize and load predetermined power and moment of flexure.
Relevant instruction is set in computing machine 901, instruction comprises two parts, a part is the switch order to n solenoid valve 5, and computing machine 901 can be controlled the switch of one or more solenoid valves 5 arbitrarily by single-chip microcomputer 902, and then controls one or more cylinders 8 and whether export gas; Another part is the air pressure instruction to electromagnetic proportional valve 2, computing machine 901 is controlled electromagnetic proportional valve 2 by single-chip microcomputer 902, the gas of air pump 1 is exported to n cylinder 8 by electromagnetic proportional valve 2, change the ratio of electromagnetic proportional valve 2, just can control the size of gaseous tension, self bear the relatively different of pressure as for n cylinder 8, control by the barrel dliameter size of himself.
Embodiment two: present embodiment is described further embodiment one, it also comprises display 4, the air pressure idsplay order output terminal of electromagnetic proportional valve 2 is connected with the display input end of display 4.
The gas that air pump 1 is exported is after electromagnetic proportional valve 2 regulates, by display 4 its gaseous tensions.
Embodiment three: present embodiment is described further embodiment one or two, it also comprises n Quick air-discharge ball valve 6 and n exhaust box 7; Between each solenoid valve 5 and a cylinder 8, a Quick air-discharge ball valve 6 is set, 1 mouthful of the gas outlet of solenoid valve 5 and Quick air-discharge ball valve 6 is connected, 2 mouthfuls of Quick air-discharge ball valve 6 are connected with the air intake of cylinder 8, and 3 mouthfuls of Quick air-discharge ball valve 6 arrange an exhaust box 7.
N Quick air-discharge ball valve 6 is Redundancy Design of electromagnetic proportional valve, in the time that electromagnetic proportional valve 2 lost efficacy, and can be by regulating Quick air-discharge ball valve 6 to adjust the air pressure size of this gas circuit.
After experiment finishes, in cylinder 8, pass through Quick air-discharge ball valve 6, fall through exhaust box 7 quick drain.