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Gas film pressure measuring device

A technology of measuring device and telemetry device, applied in measuring device, simultaneous measurement of multiple hydraulic valves, measurement of fluid pressure, etc. characteristics, ease of static characteristics, the effect of measuring ease of operation

Pending Publication Date: 2021-09-28
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the embodiments of the present invention is to provide a gas film pressure measuring device, which aims to solve the technical problems in the prior art that the test of the gas film pressure is complicated and the dynamic characteristics of the rotor are easily affected

Method used

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention is suitable for the technical field of gas bearings, and provides a gas film pressure measuring device which comprises a test bearing; a test rotor which is rotatably arranged on the test bearing, wherein a gas film gap is formed between the test rotor and the test bearing; a pressure sensor which is fixed on the test rotor and can measure the gas film pressure of the gas film gap along the circumferential direction; a rotary telemetering device which comprises an emitter and a receiver used for being connected with external equipment, wherein the emitter is fixed to the test rotor, electrically connected to the pressure sensor and capable of emitting signals of the gas film pressure to the receiver. Through the arrangement of the pressure sensor, the emitter and the receiver, during working, the pressure sensor measures the gas film pressure of the gas film gap in the circumferential direction, the emitter collects the gas film pressure signal of the pressure sensor and emitts the signal to the receiver, non-contact measurement of the gas film pressure is achieved, the test rotor can work normally during measurement, the dynamic characteristics of the test rotor are prevented from being influenced, and the whole device is very simple in structure.

Description

technical field [0001] The invention belongs to the technical field of gas bearings, and more specifically relates to a gas film pressure measuring device. Background technique [0002] In the field of bearings, air film pressure, air film gap, and temperature are often the variables tested. The traditional measurement method is to complete the measurement on the stator. It is necessary to open multiple air channels on the surface of the stator, and to measure the gas film pressure distribution in the circumferential direction multiple times at its circumferential position. The test complexity of the entire test device is very high. Large, and multiple air passages opened on the surface of the stator at the same time will destroy the air film pressure, thereby affecting the measurement results. [0003] In addition, the measurement method of installing a pressure sensor on the rotor is generally aimed at oil-lubricated bearings. Since the rotor speed is low at this time, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L15/00G01L19/08G01L19/12
CPCG01L15/00G01L19/086G01L19/12
Inventor 杜建军李长林李洁
Owner HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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