Calibrator for calibration of adjusting mechanism and calibration method of adjusting mechanism

Abstract

The invention belongs to the field of aero-engines, and discloses a calibration instrument for calibration of an adjusting mechanism and a calibration method of the adjusting mechanism, and the calibration instrument comprises an upper computer, a processor, an electro-hydraulic servo valve driving module, an electromagnetic valve driving module and an LVDT control module; the upper computer obtains and sends a control instruction, the processor generates an electro-hydraulic servo valve control signal and an electromagnetic valve control signal according to the control instruction, the electro-hydraulic servo valve driving module generates an electro-hydraulic servo valve driving signal according to the electro-hydraulic servo valve control signal, and the electromagnetic valve driving module generates an electromagnetic valve driving signal according to the electromagnetic valve control signal; the LVDT control module generates an excitation signal, sends the excitation signal, receives the excitation signal and sends collected data sent by a linear displacement sensor of the adjusting mechanism to the processor and the upper computer; and the upper computer calibrates the adjusting mechanism according to the collected data. The working performance of the adjusting mechanism can be detected in advance, reworking and secondary assembly of the adjusting mechanism caused by out-of-tolerance calibration results during complete machine assembly are avoided, the production cycle is shortened, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of aero-engines, and relates to a calibration instrument for calibration of an adjustment mechanism and a calibration method for the adjustment mechanism. Background technique [0002] The adjustment mechanism of the high-pressure compressor of the aero-engine needs to be calibrated before use. At present, the calibration test of the high-pressure compressor adjustment mechanism of the aero-engine is generally carried out under the assembly condition of the core machine / complete machine of the aero-engine, and the debugging equipment usually adopts the engine controller . [0003] However, this method has the following disadvantages: the calibration test of the high-pressure compressor adjustment mechanism is carried out under the assembly condition of the core engine / whole machine. It will inevitably affect the assembly cycle of the engine; after the assembly of the adjustment mechanism components is completed, the ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of the high cost of the calibration test of the adjustment mechanism of the aeroengine high-pressure compressor in the above-mentioned prior art, and to provide a calibration instrument for calibration of the adjustment mechanism and a calibration method for the adjustment mechanism

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