CN210416106U - Measuring instrument for internal pressure, temperature and strain of wheel of radio machine - Google Patents
Measuring instrument for internal pressure, temperature and strain of wheel of radio machine Download PDFInfo
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- CN210416106U CN210416106U CN201921089928.6U CN201921089928U CN210416106U CN 210416106 U CN210416106 U CN 210416106U CN 201921089928 U CN201921089928 U CN 201921089928U CN 210416106 U CN210416106 U CN 210416106U
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- 238000005259 measurement Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims description 25
- 230000003068 static effect Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
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Abstract
The utility model provides a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument, wherein a measuring sensor and a collecting instrument are arranged on a rotating airplane wheel, and a measuring signal is sent out by a wireless transmitter; the signals are measured by the wireless receiver in a stationary state, decoded into engineering measurements, and displayed, stored and transmitted locally. The utility model discloses the partial mountable of developments is on the spoke of rotatory wheel to press, tire temperature and wheel strain value to carry out incessant dynamic measurement with the wheel inflation through the sensor. The utility model discloses the device is small, compact structure, and makes measured dynamic signal can obtain in real time through wireless transmission. The technical problems that the operation is complex, potential safety hazards exist and uninterrupted continuous measurement cannot be carried out in the conventional aircraft wheel test are solved.
Description
Technical Field
The invention relates to the field of aircraft wheel tests, in particular to a dynamic measuring instrument for an aircraft wheel under high-speed operation.
Background
In the current aviation airplane wheel test process, the airplane wheel inflation internal pressure and the airplane wheel temperature of an aviation airplane wheel under high-speed operation need to be measured, and two measurement methods are adopted at present. One is that under the condition that the airplane wheel is stopped before and after the test, the inner inflation pressure and the tire temperature of the airplane wheel are carried out by using an artificial plugging sensor; the other is to use a slip ring device to derive the wheel inflation pressure, tire temperature and wheel strain signals measured by the sensor. The former measurement method needs manual field direct operation, not only has complex operation, can not carry out continuous measurement in real time, has high tire temperature after test and has hidden dangers of tire burst, but also can only carry out static measurement. In the latter measurement method, although dynamic measurement is possible, a large number of measurement signal lines are led to the outside, and a test line is often broken at high-speed rotation.
Disclosure of Invention
The invention provides a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument, aiming at overcoming the defects of the prior art and the problems of complex operation, potential safety hazard and incapability of uninterrupted continuous measurement of the dynamic conditions of the airplane wheel internal pressure, the tire temperature and the airplane wheel strain under the high-speed operation.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument comprises a sensor, a signal acquisition and processing module, a wireless transmitter, a wireless receiver and a signal decoding and display storage and transmission module;
the wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument is divided into a dynamic rotating part and a static part, wherein in the dynamic rotating part, the sensor comprises a pressure sensor, a temperature sensor and a strain gauge, the pressure sensor, the temperature sensor and the strain gauge respectively convert the tire pressure, the temperature and the airplane wheel strain into electric signals and send the converted electric signals to a signal acquisition and processing module, the signal acquisition and processing module filters and amplifies the acquired electric signals and then carries out digital processing, the measurement signals after the digital processing are transmitted to a wireless transmitter, and the wireless transmitter sends out electromagnetic waves containing the measurement signals according to a transmission protocol;
in the static part, the wireless receiver receives electromagnetic waves sent by a transmission protocol, separates out a measurement signal and sends the measurement signal to a signal decoding and display storage and transmission module, digitalizes the signal into a pressure value, a temperature value and a strain value corresponding to an engineering measurement value, and displays and stores the pressure value, the temperature value and the strain value locally or transmits the pressure value, the temperature value and the strain value to a computer;
the power supply module supplies power to the wireless receiver and the signal decoding and display storage and transmission module of the static part, and supplies electric energy to the power supply module of the dynamic rotating part through the rotary transformer, and the power supply module of the dynamic rotating part absorbs the primary-changed electric energy of the static part through the secondary side of the rotary transformer by magnetic coupling so as to supply power to the dynamic rotating part.
The dynamic measuring device has the advantages that the dynamic part can be arranged on the spoke of the rotating wheel, and the wheel inflation internal pressure, the tire temperature and the wheel strain value are continuously and dynamically measured through the sensor. The device has small volume and compact structure, and the measured dynamic signal can be obtained in real time through wireless transmission. The technical problems that the operation is complex, potential safety hazards exist and uninterrupted continuous measurement cannot be carried out in the conventional aircraft wheel test are solved.
Drawings
Fig. 1 is a schematic diagram of the structure of the wireless wheel internal pressure, tire temperature and wheel strain gauge of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The measuring instrument of the invention installs the measuring sensor and the collecting instrument on the rotating machine wheel, and sends out the measuring signal through the wireless transmitter; the signals are measured by the wireless receiver in a stationary state, decoded into engineering measurements, and displayed, stored and transmitted locally.
The invention provides a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument which comprises a sensor, a signal acquisition and processing module, a wireless transmitter, a wireless receiver and a signal decoding, displaying, storing and transmitting module.
The wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument is divided into a dynamic rotating part and a static part, wherein in the dynamic rotating part, the sensor comprises a pressure sensor, a temperature sensor and a strain gauge, the pressure sensor, the temperature sensor and the strain gauge respectively convert the tire pressure, the temperature and the airplane wheel strain into electric signals and send the converted electric signals to a signal acquisition and processing module, the signal acquisition and processing module filters and amplifies the acquired electric signals and then carries out digital processing, the measurement signals after the digital processing are transmitted to a wireless transmitter, and the wireless transmitter sends out electromagnetic waves containing the measurement signals according to a transmission protocol;
in the static part: the wireless receiver receives electromagnetic waves sent by a transmission protocol, separates out a measurement signal, sends the measurement signal to the signal decoding and display storage and transmission module, digitalizes the signal into a pressure value, a temperature value and a strain value corresponding to an engineering measurement value, and displays and stores the pressure value, the temperature value and the strain value locally or transmits the pressure value, the temperature value and the strain value to a computer;
the power supply module supplies power to the wireless receiver and the signal decoding and display storage and transmission module of the static part, and supplies electric energy to the power supply module of the dynamic rotating part through the rotary transformer, and the power supply module of the dynamic rotating part absorbs the primary variable electric energy of the static part through the secondary side of the rotary transformer by magnetic coupling so as to supply power to the dynamic rotating part.
The examples of the invention are as follows:
and a dynamic part:
1. measuring the internal pressure of the airplane wheel: a signal acquisition processing module of a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument provides a 24V direct-current power supply for a pressure sensor, the pressure sensor arranged on an airplane wheel inflating nozzle converts the intra-tire pressure of a measured airplane wheel from 0-6MPa into a 4-20mA direct-current signal, and the 4-20mA direct-current signal is transmitted to the signal acquisition processing module.
2. Measuring the temperature of the tire: the temperature sensor pre-embedded on the tire converts the temperature of the measured tire from 0 to 200 ℃ into a direct current voltage signal of 0 to 20mV and transmits the direct current voltage signal of 0 to 20mV of the temperature to the signal acquisition processing module.
3. Wheel strain measurement: a wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument signal acquisition processing module provides a strain measurement 10V direct-current power supply. The airplane wheel generates corresponding strain under the action of a load force, the strain gauge adhered to a measured point of the airplane wheel converts the strain of the measured point into a direct-current voltage signal of micro-strain mu epsilon, and the direct-current voltage signal of the micro-strain mu epsilon is transmitted to the signal acquisition and processing module.
4. The signal acquisition and processing module: converting the acquired 4-20mA direct current signal of pressure, 0-20mV direct voltage signal of temperature and micro strain mu epsilon direct voltage signal into digital engineering quantity values, such as pressure, temperature and strain generation force values, and transmitting the digital engineering quantity values to a wireless transmitter through transmission and packaging processing.
5. A wireless transmitter: the wireless transmitter wirelessly transmits the digitalized engineering quantity value subjected to packaging processing according to a wireless communication protocol.
6. The power module absorbs the primary variable electric energy of the static part through the secondary side of a rotary transformer on the power module by magnetic coupling.
And (3) a static part:
1. a wireless receiver: the wireless receiver receives the packaging processing digitalized engineering quantity value sent by the wireless transmitter and transmits the received packaging processing digitalized engineering quantity value to the signal decoding and display storage and transmission module.
2. The signal decoding and displaying storage and transmission module comprises: the signal decoding, displaying, storing and transmitting module processes the digitalized engineering quantity value to separate out the required engineering quantity value (such as pressure, temperature and strain force value) for displaying and storing, and transmits the engineering quantity value to the computer according to the transmission protocol.
3. The power supply module supplies electric energy to the dynamic rotating part through the rotary transformer in addition to the power utilization of the static part.
The use method of the wireless wheel internal pressure, tire temperature and wheel strain measuring instrument is as follows:
the first step is as follows: the wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument is attached to a measured position, a temperature sensor is embedded in the measured position, the pressure sensor is connected to an inflating nozzle through a pressure pipe, and the measuring sensor is fixed so as not to be thrown out in a rotating mode.
A second part: and fixing the wireless transmitter, connecting the measuring wire to an acquisition port of the wireless transmitter, and fixing or bonding the measuring wire on the airplane wheel.
A third part: the wireless receiver is mounted within an effective reception range near the test piece.
The fourth step: and (4) switching on a power supply, and carrying out real-time measurement by the wireless airplane wheel internal pressure, the tire temperature and the airplane wheel strain measuring instrument.
Claims (1)
1. A wireless wheel internal pressure, tire temperature and wheel strain gauge, characterized in that:
the wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument comprises a sensor, a signal acquisition and processing module, a wireless transmitter, a wireless receiver and a signal decoding and display storage and transmission module;
the wireless airplane wheel internal pressure, tire temperature and airplane wheel strain measuring instrument is divided into a dynamic rotating part and a static part, wherein in the dynamic rotating part, the sensor comprises a pressure sensor, a temperature sensor and a strain gauge, the pressure sensor, the temperature sensor and the strain gauge respectively convert the tire pressure, the temperature and the airplane wheel strain into electric signals and send the converted electric signals to a signal acquisition and processing module, the signal acquisition and processing module filters and amplifies the acquired electric signals and then carries out digital processing, the measurement signals after the digital processing are transmitted to a wireless transmitter, and the wireless transmitter sends out electromagnetic waves containing the measurement signals according to a transmission protocol;
in the static part, the wireless receiver receives electromagnetic waves sent by a transmission protocol, separates out a measurement signal and sends the measurement signal to a signal decoding and display storage and transmission module, digitalizes the signal into a pressure value, a temperature value and a strain value corresponding to an engineering measurement value, and displays and stores the pressure value, the temperature value and the strain value locally or transmits the pressure value, the temperature value and the strain value to a computer;
the power supply module supplies power to the wireless receiver and the signal decoding and display storage and transmission module of the static part, and supplies electric energy to the power supply module of the dynamic rotating part through the rotary transformer, and the power supply module of the dynamic rotating part absorbs the primary-changed electric energy of the static part through the secondary side of the rotary transformer by magnetic coupling so as to supply power to the dynamic rotating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089928.6U CN210416106U (en) | 2019-07-12 | 2019-07-12 | Measuring instrument for internal pressure, temperature and strain of wheel of radio machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089928.6U CN210416106U (en) | 2019-07-12 | 2019-07-12 | Measuring instrument for internal pressure, temperature and strain of wheel of radio machine |
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| Publication Number | Publication Date |
|---|---|
| CN210416106U true CN210416106U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921089928.6U Expired - Fee Related CN210416106U (en) | 2019-07-12 | 2019-07-12 | Measuring instrument for internal pressure, temperature and strain of wheel of radio machine |
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| CN (1) | CN210416106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385949A (en) * | 2019-07-12 | 2019-10-29 | 西安航空制动科技有限公司 | Wireless wheel internal pressure, tyre temperature and wheel strain gauge |
-
2019
- 2019-07-12 CN CN201921089928.6U patent/CN210416106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385949A (en) * | 2019-07-12 | 2019-10-29 | 西安航空制动科技有限公司 | Wireless wheel internal pressure, tyre temperature and wheel strain gauge |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |