Tire internal pressure measuring device and method for aviation inertia test bed
A measuring device and test bench technology, applied in the direction of aircraft component testing, etc., can solve the problems of tire internal pressure real-time, precision impact, impact on tire dynamic balance, strength, low stability, etc., to ensure test accuracy and safety, Realize dynamic online detection and improve the effect of real-time measurement
Active Publication Date: 2020-08-18
CHINA AIRPLANT STRENGTH RES INST +1
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Problems solved by technology
This method has the following disadvantages: 1. Since the pressure sensor is integrated and installed inside the tire, it rotates synchronously with the tire
A large centrifugal force is generated during high-speed rotation, which will affect the dynamic balance and strength of the tire, which not only affects the test accuracy, but also creates potential safety hazards; 2. The wireless transmission method has shortcomings such as signal delay and low stability. The real-time performance and accuracy of detection will affect
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Embodiment Construction
[0027] A tire internal pressure measuring device for an aviation inertial test bench, which is installed at the wheel hub position on the side of the aircraft inertial test bench, such as figure 1 As shown, the device includes: a gas path rotary joint (also known as an air slip ring), a pipeline, a pressure measuring joint and a pressure sensor.
[0028] The gas path rotary joint is a relative rotation structure of the stator and the rotor, and the stator and the rotor respectively have a gas path interface. The pressure measuring joint is a two-way component, and there is an air circuit interface at both ends. The specific installation method is as follows.
[0029] First, fix the rotor part of the air path rotary joint to the hub of the wheel, and at the same time connect the tire inflation nozzle to the air path interface of the rotary joint rotor through the pipeline. Secondly, connect and fix the stator part of the swivel joint with the wheel shaft, and at the same time ...
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The invention belongs to the field of test equipment, and discloses a tire internal pressure measuring device and method for an aviation inertia test bed. When tire performance analysis is carried outand the tire pressure exceeds a limit pressure-resistant value, pressure relief protection is carried out on the tire, so that explosion is prevented. The device is composed of a gas path rotating joint (gas slip ring), a pipeline, a pressure measuring joint, a pressure sensor and the like. Wherein the gas circuit rotary joint (gas slip ring) is of a structure that a stator and a rotor relativelyrotate, and the stator and the rotor are respectively provided with a gas circuit interface. The rotary joint rotor part is fixed with an airplane wheel hub, and meanwhile, a tire charging connectoris connected with a rotary joint rotor gas circuit interface through a pipeline. A rotating joint stator part is fixedly connected with a machine wheel shaft, and meanwhile one end of a pressure measuring joint is connected with a rotating joint stator gas circuit connector. And finally, the pressure sensor is fixed at the other end of the pressure measuring joint. The method not only guarantees the test precision and safety, but also effectively improves the measurement real-time performance, stability and measurement precision.
Description
technical field [0001] The invention belongs to the field of test equipment, and in particular relates to a tire internal pressure measuring device and method for an aviation inertial test bench. Background technique [0002] The aviation inertia test bench can test the performance of aviation tires, wheel brakes and other equipment under actual use conditions, and provide scientific basis for product development, identification and delivery. [0003] A typical aviation inertial test bench usually adopts a horizontal structure, and the performance verification test of the wheel is carried out by loading the wheel on the drum surface of the simulated road. During the test, in order to detect the internal pressure of the tire online in real time, so as to analyze the tire performance, and at the same time, when the tire pressure exceeds the limit pressure value, to protect the tire from pressure release and prevent explosion, it is necessary to design a set of tire internal pr...
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IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 崔雄王靖刘颖茜李宋王文宇白钧生
Owner CHINA AIRPLANT STRENGTH RES INST