CN112161701A - Vibration tester - Google Patents
Vibration tester Download PDFInfo
- Publication number
- CN112161701A CN112161701A CN202010994113.3A CN202010994113A CN112161701A CN 112161701 A CN112161701 A CN 112161701A CN 202010994113 A CN202010994113 A CN 202010994113A CN 112161701 A CN112161701 A CN 112161701A
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- Prior art keywords
- tester
- power supply
- vibration
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- checking
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a vibration tester, and relates to the field of testing of engines assembled on helicopters. The vibration tester comprises a tester main body and a connecting cable, wherein the tester main body comprises a case, a tester front panel, a tester rear panel and a power supply, and the power supply comprises a working power supply and a self-checking power supply. The tester back panel is used for providing an external power supply and a special jumper wire hole of a metering tester head; the front panel of the tester is connected with the vibration detection system through a connecting cable, and single detection and joint debugging of each component of the vibration detection system are performed. The vibration tester can be used for simulating complete joint debugging joint test of the helicopter working environment vibration detection system, single piece detection of a vibration measurement electronic measurement component in the vibration detection system can be realized, and technical parameters can be completely measured in the morning. Through a complete set of tests, the faults of the vibration detection system and all components in the complete set can be accurately positioned, the maintenance period of the outfield helicopter is shortened, the maintenance efficiency of the helicopter is improved, and the purpose of effective guarantee is achieved.
Description
Technical Field
The invention relates to the field of testing of engines assembled on helicopters, in particular to a vibration tester.
Background
The tester of the vibration detection system introduced at present can not test the complete performance of the vibration detection system, and can not simulate the working environment on a helicopter to verify the quality of a sensor (MB-3) in the vibration detection system. The helicopter has no simultaneous detection function of two engine channels, often finds that the single-channel internal field detection is qualified, and often finds faults when a complete set of ground of the helicopter is electrified to detect the double channels. When the vibration detection system has problems in the on-board work, the functions of the vibration detection system and all components in the matching system can not be tested by mainly relying on a complete test with a helicopter as a platform at present.
Disclosure of Invention
The invention aims to overcome the defects, and provides a vibration tester which can independently measure an electronic measurement component, can be used for joint debugging and joint testing of a system and realizes complete testing of system set technical parameters of an infield vibration detection system for simulating a ground helicopter.
The invention specifically adopts the following technical scheme:
a vibration tester comprises a tester main body and a connecting cable, wherein the tester main body comprises a case, a tester front panel, a tester rear panel and a power supply, and the power supply comprises a working power supply and a self-checking power supply;
the tester back panel is used for providing an external power supply and a special jumper wire hole of a metering tester head;
the front panel of the tester is connected with the vibration detection system through a connecting cable, and single-piece detection and joint debugging of each component of the vibration detection system are performed;
the working power supply provides a working display power supply for an alternating current and direct current voltmeter and an alternating current and direct current meter in the tester by a 220V alternating current power supply; the 220V alternating current power supply is converted into a direct current power supply when the vibration detection system works through a power supply AC/DC converter, and a product direct current source is formed through a control potentiometer and a circuit;
the working voltage is connected in parallel through an alternating current voltmeter, then is connected in series with alternating current, and enters a product through a control circuit;
the self-checking power supply is transformed to a bridge rectifier filter from external 115V/400Hz current through a transformer to form +45V self-checking voltage, and then the voltage enters a product;
the use method of the vibration tester comprises the following steps:
checking the performance;
checking self-checking work;
the channel over-standard signal device starts the test of the electrical level;
the channel hazard signaling device initiates a test of the electrical level.
Preferably, in the performance checking process, switches of an 'alternating current power supply' switch and a 'direct current power supply' switch of the front panel of the tester are placed at a downward position, a 'channel selection' switch is placed at an 'off position, and then an' indicator selection 'switch is placed at an' off position; after the connection is checked that the external power supply is correct, the switches of the AC power supply and the DC power supply are sequentially turned on, whether the DC voltage in the display window of the DC voltmeter is 27 +/-10% V or not is checked, if not, the knob of the DC power supply is adjusted, and after the DC voltage is displayed to be 27 +/-10%, the performance check is started.
Preferably, in the process of self-checking work inspection, an indicator selection switch is arranged at an internal position, then a self-checking button on a front panel of the tester is pressed, whether overproof vibration and dangerous vibration indicating lamps of a left channel and a right channel are lightened or not is observed, and indicated values of indicators of the left channel and the right channel are observed; if the indicator light of one channel is not on and the indicated value is 0, checking the circuit of the corresponding channel; if the indicator lamps are not on, detecting whether the panel oscillation signals of the tester and the working voltages are +12V, -12V, +15V, +45V or not.
Preferably, in the process of testing the starting level of the channel exceeding signal device, the channel selection switch is arranged at a double-sending position, the indicator selection switch is arranged at an internal position, a signal source is turned on, the signal frequency is set, the frequency value of the signal frequency is consistent with the value corresponding to the sensitivity of the vibration sensor MB-03, the amplitude of the signal source is set to be 0mV, the amplitude of an output signal is gradually increased, when a left exceeding vibration indicator lamp and a right exceeding vibration indicator lamp on a panel of a tester of the tester are observed, the value of the indicator meets the technical requirement, and otherwise, an H potentiometer of a corresponding channel of the electronic measurement component is adjusted.
Preferably, in the process of testing the starting level of the channel dangerous signal device, the amplitude of the output signal is continuously increased on the basis of testing the starting level of the channel exceeding signal device, when a left dangerous vibration indicator lamp and a right dangerous vibration indicator lamp on a panel of the tester are on, the value of the indicator meets the requirement, otherwise, H and O potentiometers of corresponding channels of the electronic measurement component are adjusted, so that the starting levels of the left channel and the right channel are consistent.
The invention has the following beneficial effects:
the vibration tester can be used for simulating the complete set joint debugging of the vibration detection system of the working environment of the helicopter, and can also realize the purpose of complete measurement of technical parameters, such as the BEEPE-9E 2c vibration measurement electronic measurement component, the C-6E 2 matcher and the MB-3 sensor inner field single piece detection in the vibration detection system. Through a complete set of tests, the faults of the vibration detection system and all components in the complete set can be accurately positioned, the maintenance period of the outfield helicopter is shortened, the maintenance efficiency of the helicopter is improved, and the purpose of effective guarantee is achieved.
Drawings
FIG. 1 is a schematic view of a front panel of a vibration tester;
FIG. 2 is a schematic view of a rear panel of the vibration tester;
FIG. 3 is a schematic diagram of the test connection of the vibration tester and the components of the vibration detection system;
FIG. 4 is a schematic diagram of a vibration tester circuit;
FIG. 5 is a schematic circuit diagram of the input and detection of a working power supply;
FIG. 6 is a schematic circuit diagram of the self-test operating power input;
FIG. 7 is a schematic view of a vibration tester cable connection.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
combine the attached drawing, the vibration tester includes tester main part and connecting cable, and the tester main part includes quick-witted case, tester front panel, tester rear panel and power, and the power includes working power supply and self-checking power supply.
The tester back panel is used for providing an external power supply and a special jumper wire hole of a metering tester head.
The front panel of the tester is connected with the vibration detection system through a connecting cable, and single detection and joint debugging of each component of the vibration detection system are performed.
With reference to fig. 4, the vibration tester circuit principle is mainly that an electronic measuring component for measuring vibrations, a c-6 c 2 matcher and an MB-3 sensor component are used to build a working environment, and each component is subjected to function control and real-time monitoring, and meanwhile, human-computer interaction is performed with reference to a display window and light warning.
With reference to fig. 5, the working power supply provides working display power supply for the ac/dc voltmeter and the ac/dc ammeter inside the tester from 220V ac power supply; the 220V alternating current power supply is converted into a direct current power supply when the vibration detection system works through the power supply AC/DC converter, and a product direct current power supply is formed through the control potentiometer and the circuit.
The working voltage is connected in parallel through an alternating current voltmeter, then is connected in series with alternating current, and enters a product through a control circuit.
Referring to fig. 6, the self-test power supply transforms external 115V/400Hz current to a +45V self-test voltage after bridge rectification and filtering through a transformer, and then enters the product.
The use method of the vibration tester comprises the following steps:
checking the performance; in the performance checking process, a button switch of a front panel of the tester is arranged at a downward position, a channel selection switch is arranged at an off position, and an indicator selection switch is arranged at the off position; connecting an external power supply, sequentially turning on an 'alternating current' power switch and a 'direct current' power switch, checking whether the direct current voltage displayed in the digital display instrument is 27 +/-10% V, if not, adjusting a direct current power knob to enable the direct current voltage to be 27 +/-10%, and then starting performance checking.
Checking self-checking work; in the process of self-checking work and inspection, an indicator selection switch is arranged at an internal position, then a self-checking button on a front panel of the tester is pressed, whether overproof vibration and dangerous vibration indicating lamps of a left channel and a right channel are lightened or not is observed, and indicated values of indicators of the left channel and the right channel are observed; if the indicator light of one channel is not on and the indicated value is 0, checking the circuit of the corresponding channel; if the indicator lamps are not on, detecting whether the panel oscillation signals of the tester and the working voltages are +12V, -12V, +15V, +45V or not.
The channel over-standard signal device starts the test of the electrical level; in the process of testing the starting level of the channel over-standard signal device, a channel selection switch is arranged at a double-emitting position, an indicator selection switch is arranged at an internal position, a signal source is turned on, the signal frequency is set, the frequency value of the signal frequency is consistent with the value corresponding to the sensitivity of a vibration sensor MB-03, the amplitude of the signal source is set to be 0mV, the amplitude of an output signal is gradually increased, when a left over-standard vibration indicator lamp and a right over-standard vibration indicator lamp on a panel of a tester of the tester are observed to be on, the value of the indicator is in accordance with the technical requirement, and otherwise, an H potentiometer of a corresponding channel of the electronic measurement assembly is adjusted.
Testing the starting level of the channel danger signal device; in the process of testing the starting level of the channel dangerous signal device, the amplitude of an output signal is continuously increased on the basis of testing the starting level of the channel exceeding signal device, when a left dangerous vibration indicator lamp and a right dangerous vibration indicator lamp on a panel of the tester are on, the value of the indicator meets the requirement, otherwise, H and O potentiometers of corresponding channels of the electronic measurement assembly are adjusted, and the starting levels of the left channel and the right channel are consistent.
The vibration tester (hereinafter referred to as tester) is used for carrying out complete or single performance test on a B-500A (E) vibration detection system (hereinafter referred to as vibration detection system) of an engine assembled on a meter-series helicopter. The test and connection in the set is shown in fig. 3, and the B-500A (E) vibration detection system mainly has the functions of uninterruptedly monitoring the vibration speed and giving an alarm prompt signal when the vibration speed exceeds the allowable vibration speed of the engine in real time.
The case structure adopts 5U, and tester front panel, tester rear panel all adopt 3mm aluminum plate surface passivation, and the plastic-blasting is, and the colour is the computer ash, and chinese character 4mm imitates song style word, and digit 5mm is handled, and the cable connection picture is shown in fig. 7.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (5)
1. A vibration tester comprises a tester main body and a connecting cable, and is characterized in that the tester main body comprises a case, a tester front panel, a tester rear panel and a power supply, wherein the power supply comprises a working power supply and a self-checking power supply;
the tester back panel is used for providing an external power supply and a special jumper wire hole of a metering tester head;
the front panel of the tester is connected with the vibration detection system through a connecting cable, and single-piece detection and joint debugging of each component of the vibration detection system are performed;
the working power supply provides a working display power supply for an alternating current and direct current voltmeter and an alternating current and direct current meter in the tester by a 220V alternating current power supply; the 220V alternating current power supply is converted into a direct current power supply when the vibration detection system works through a power supply AC/DC converter, and a product direct current source is formed through a control potentiometer and a circuit;
the working voltage is connected in parallel through an alternating current voltmeter, then is connected in series with alternating current, and enters a product through a control circuit;
the self-checking power supply is transformed to a bridge rectifier filter from external 115V/400Hz current through a transformer to form +45V self-checking voltage, and then the voltage enters a product;
the use method of the vibration tester comprises the following steps:
checking the performance;
checking self-checking work;
the channel over-standard signal device starts the test of the electrical level;
testing the starting level of the channel danger signal device;
the device start levels of the left and right hair channels are identical.
2. A vibration tester as claimed in claim 1, wherein during the performance check, the "ac power" and "dc power" switches of the tester front panel are placed in a down position, the "channel select" switch is placed in an "off position, and the" indicator select "switch is placed in an" off position; after the connection is checked that the external power supply is correct, the switches of the AC power supply and the DC power supply are sequentially turned on, whether the DC voltage displayed in the display window of the DC voltmeter is 27 +/-10% V or not is checked, if not, the knob of the DC power supply is adjusted, and after the DC voltage is 27 +/-10%, the performance check is started.
3. The vibration tester as claimed in claim 1, wherein in the self-checking operation, the indicator selection switch is set to the "inside" position, and then the self-checking button on the front panel of the tester is pressed to observe whether the indicator lights of the left and right channels are on, and at the same time, to observe the indication values of the indicators of the left and right channels; if the indicator light of one channel is not on and the indicated value is 0, checking the circuit of the corresponding channel; if the indicator lamps are not on, detecting whether the panel oscillation signals of the tester and the working voltages are +12V, -12V, +15V, +45V or not.
4. The vibration tester as claimed in claim 1, wherein in the process of testing the starting level of the channel over-standard signal device, the channel selection switch on the front panel of the tester is placed in a double-shot position, the indicator selection switch is placed in an internal position, the signal source is turned on, the signal frequency is set, the frequency value is consistent with the value corresponding to the sensitivity of the vibration sensor MB-03, the amplitude of the signal source is set to 0mV, the amplitude of the output signal is gradually increased, the indicator value is in accordance with the technical requirement when the left and right over-standard vibration indicating lamps on the tester panel are observed, and otherwise, the H potentiometer of the corresponding channel of the electronic measurement component is adjusted.
5. The vibration tester as claimed in claim 1, wherein in the process of testing the starting level of the channel danger signal device, the amplitude of the output signal is increased on the basis of testing the starting level of the channel exceeding signal device, when the 'left and right danger vibration' indicator lights on the tester panel are on, the value of the indicator meets the requirement, otherwise, the 'H' and 'O' potentiometers of the corresponding channels of the electronic measuring assembly are adjusted to make the starting levels of the devices of the left and right transmission channels consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994113.3A CN112161701A (en) | 2020-09-21 | 2020-09-21 | Vibration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994113.3A CN112161701A (en) | 2020-09-21 | 2020-09-21 | Vibration tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161701A true CN112161701A (en) | 2021-01-01 |
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ID=73862993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010994113.3A Pending CN112161701A (en) | 2020-09-21 | 2020-09-21 | Vibration tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112161701A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229759A (en) * | 1996-02-26 | 1997-09-05 | Ricoh Co Ltd | Amplifier and oscillation measuring system |
| CN103091108A (en) * | 2013-01-17 | 2013-05-08 | 商旭升 | Vibration detecting system used for aircraft engine |
| CN207407992U (en) * | 2017-11-29 | 2018-05-25 | 成都飞亚航空设备应用研究所有限公司 | A kind of vibration amplifier exerciser |
-
2020
- 2020-09-21 CN CN202010994113.3A patent/CN112161701A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229759A (en) * | 1996-02-26 | 1997-09-05 | Ricoh Co Ltd | Amplifier and oscillation measuring system |
| CN103091108A (en) * | 2013-01-17 | 2013-05-08 | 商旭升 | Vibration detecting system used for aircraft engine |
| CN207407992U (en) * | 2017-11-29 | 2018-05-25 | 成都飞亚航空设备应用研究所有限公司 | A kind of vibration amplifier exerciser |
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Application publication date: 20210101 |
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| RJ01 | Rejection of invention patent application after publication |