Multi-parameter online comprehensive detection device for variable-diameter aviation hydraulic pipeline
A hydraulic pipeline, comprehensive detection technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of affecting efficiency, changing pipe diameter, and the complexity of the hydraulic pipeline under test, so as to improve efficiency, increase accuracy and reliability Effect
Active Publication Date: 2021-03-09
UNIV OF SCI & TECH LIAONING
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Problems solved by technology
[0003] The commonly used aviation hydraulic pipeline parameter measurement device is through the intervention instrument measurement of the hydraulic pipeline system under test, which not only affects the efficiency due to the difficulty of disassembly and assembly, but also affects the dynamic characteristics of the hydraulic pipeline under test
The measurement object is usually a single straight pipe with a simple structure, but the hydraulic pipeline to be tested is actually more complicated, and the diameter of the pipe is changeable. The measurement of multiple parameters is of great significance for studying the vibration characteristics and temperature rise of the hydraulic pipeline under test
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[0039] like figure 1 As shown, the spring 2 is connected to one end of the sensor base 6; the sensor is fixed on the sensor base 6; the positioning bolt 1 is supported on the spring 2. Assemble the selected sensor, sensor base 6, spring 2, and positioning bolt 1 in sequence, pull the sensor line through the gap between each main body 5 and connect it to the signal processor, and install the main body 5 according to an appropriate number on the female Buckle 4-1, tighten the positioning bolt 1 with a certain pre-tightening force to ensure the accuracy and reliability of the measurement data. like figure 2 The connection shown in this scheme can simultaneously test different parameters of hydraulic pipelines with large pipe diameters and multiple measuring points. like image 3 The connection shown in this scheme can test different parameters of the hydraulic pipeline with small diameter and multiple measuring points at the same time.
[0040] According to the detection req...
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The invention belongs to the technical field of hydraulic pipeline vibration measurement, and particularly relates to a multi-parameter online comprehensive detection device for a variable-diameter aviation hydraulic pipeline. The device is characterized by comprising a main body, a plurality of internal threaded holes formed in the main body, sensor bases arranged in the internal threaded holes respectively, and springs connected with the tops of the sensor bases, sensor placing groove formed in the bottom of the sensor base, sensors, positioning bolts in threaded connection with each internal threaded hole, buckles arranged on the main body, wherein each buckle comprises a buckle base and a male buckle which are fixed on the main body, and a female buckle which is connected with the buckle base and the male buckle respectively. The main body part is slender and can be assembled according to the diameter of a measured pipeline, the effective connection of hydraulic pipelines with different diameters and complex structures can be realized, the disassembly is convenient, the measurement efficiency is effectively improved, and different vibration characteristic information of a pipeline system such as displacement, frequency and temperature can be simultaneously extracted at the same measurement point.
Description
technical field [0001] The invention belongs to the technical field of vibration measurement of hydraulic pipelines, in particular to a multi-parameter online comprehensive detection device for variable-diameter aviation hydraulic pipelines. Background technique [0002] Aviation hydraulic pipelines are distributed throughout the aircraft to provide hydraulic power for aircraft flight control and high-lift devices, and the vibration environment of the aircraft is relatively complex. The main reason for the vibration failure of the aviation hydraulic pipeline system is: under the action of the environmental vibration load of the airframe, the pipeline produces forced vibration of large displacement, especially when the frequency of the airframe is close to the natural frequency of the hydraulic pipeline system, structural resonance will occur. High vibration stress forms cumulative damage, which in turn leads to fatigue damage, so necessary analysis or tests are required to e...
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Login to View More IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 于晓光于喜金窦金鑫刘佳琪刘佳鸣刘忠鑫孙杰杨同光
Owner UNIV OF SCI & TECH LIAONING