CN110332982A - A kind of marine shafting vibration-testing apparatus - Google Patents
A kind of marine shafting vibration-testing apparatus Download PDFInfo
- Publication number
- CN110332982A CN110332982A CN201910615549.4A CN201910615549A CN110332982A CN 110332982 A CN110332982 A CN 110332982A CN 201910615549 A CN201910615549 A CN 201910615549A CN 110332982 A CN110332982 A CN 110332982A
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- Prior art keywords
- sensor
- vibration
- toothed disc
- shafting
- testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of marine shafting vibration-testing apparatus, including toothed disc and door shaped stent, toothed disc includes left and right semicircular ring, and the two ends of left and right semicircular ring are equipped with connection convex block, it connects convex block and is equipped with screw hole, the outer peripheral surface of left and right annulus is equipped with half circular tooth disk along center line；Door shaped stent includes left and right column and crossbeam, crossbeam center is equipped with torsional oscillation sensor and lateral pickup, left and right column is equipped with oscillation crosswise sensor and extensional vibration sensor, present invention reduces the influences of ambient vibration noise, the integrated level and reliability for improving shafting vibration measuring accuracy, monitoring system, meet marine shafting oscillation real time monitoring purpose.
Description
Technical field
The invention belongs to the technical field of marine shafting vibration-testing, in particular to a kind of marine shafting vibration-testing dress
It sets.
Background technique
Marine shafting is the important component of Ship Power Equipment, it is the transfer part between marine main engine and propeller
Part.Shafting vibration will lead to the failure of shafting, transmission device and host, directly affect ship navigation performance and safety.To axis
It is that vibration signal carries out precise measurement and time domain, frequency domain, amplitude analysis, the analysis data of clear and definite can be provided for survey crew
And figure, shaft system fault diagnosis and performance evaluation can be also carried out, the safety of marine shafting operation is improved.
Shafting vibration real-time monitoring is the most direct means for checking, judging and evaluate shafting operation conditions.Meanwhile
It is tested by a large amount of shafting vibration, can also accumulate data, constantly improve original designing technique, and then new shafting is instructed to set
Meter.
In current shafting vibration testing field, test method be it is diversified, mechanical method of testing can be roughly divided into,
Electrical measuring method and optical profile type method of testing three classes.It, can be by its point whether wherein electrical measuring method is contacted according to test sensor with tested shafting
For contacting test means and two kinds of non-contact testing method.
Mechanical method of testing, because precision is low, frequency response is poor, oneself less use；Optical profile type method of testing, because structure is complicated,
It is expensive, it is difficult to be widely used in shiphoard measurement.Therefore, from the point of view of practical function, measuring accuracy and reliability, non-contact survey
Examination method has biggish superiority compared to other test methods and is most widely used.
However since structure is complicated, peripheral space is narrow for practical marine shafting, it is vibrated in Ship Vibration monitoring process
Monitoring point selection is difficult, and each class testing sensor influences vulnerable to ship environment vibration noise and causes more abnormal point data, causes
It tests and there is " multiple tooth " phenomenon in signal, influence vibration-testing precision, and real ship is protected in the installation of vibration monitoring sensor
It is not easy to realize；Arrange that sensor wire is longer to be also not easy to protect, and leads to shiphoard measurement along shafting longitudinal dispersion because of sensor simultaneously
When reliability reduce.
Summary of the invention
A kind of marine shafting vibration-testing apparatus is provided it is an object of the invention to demand in view of the above technology, shafting vibration
It is dynamic include twisting vibration, extensional vibration and whirling vibration measuring point can centralized arrangement on tooth code-disc, reach the mesh of measuring point concentration
, improve the integrated level and reliability of shafting vibration monitoring system.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of marine shafting vibration-testing apparatus, special
Sign is: including toothed disc and door shaped stent, the toothed disc includes left and right semicircular ring, the two ends of the left and right semicircular ring
It is equipped with connection convex block, the connection convex block is equipped with screw hole, and the outer peripheral surface of left and right annulus is equipped with half circular tooth disk along center line；
The door shaped stent includes left and right column and crossbeam, and the crossbeam center is equipped with torsional oscillation sensor and first and laterally senses
Device, the left and right column are equipped with the second oscillation crosswise sensor and extensional vibration sensor.
According to the above scheme, the probe of the torsional oscillation sensor and the first lateral pickup is and in the top of the toothed disc
The heart is to positive setting, and the probe of the second oscillation crosswise sensor and the center side of toothed disc are to positive setting, longitudinal vibration
The probe of dynamic sensor is respectively with the both sides of the face of toothed disc to positive setting.
According to the above scheme, the crossbeam center is equipped with mounting hole, sets on the left and right column along axial uniform intervals
There are multiple mounting holes, left and right column bottom is equipped with fixed pedestal, and lower part is respectively equipped with fore-lying device case and cable hole.
According to the above scheme, the torsional oscillation sensor is Hall sensor, the first, second oscillation crosswise sensor and vertical
It is current vortex sensor to vibrating sensor.
According to the above scheme, the number of teeth of the toothed disc is no less than 100.
According to the above scheme, the inner race width of the toothed disc is greater than outer ring width.
The beneficial effects of the present invention are: 1, a kind of marine shafting vibration-testing apparatus is provided, to marine shafting vibrate measuring point
Integrated design is carried out with sensor tooling, makes full use of tooth code-disc by torsional vibration of shafting, whirling vibration and axial vibration measuring point
It focuses on tooth code-disc, has not only met shafting vibration test philosophy, but also facilitate engineer application；2, all kinds of vibration-testing sensors are concentrated
It is arranged in door type structure；The influence for reducing ambient vibration noise improves shafting vibration measuring accuracy, monitors system
Integrated level and reliability meet marine shafting oscillation real time monitoring purpose, may be directly applied to marine shafting vibration monitor system
In design.
Detailed description of the invention
Fig. 1 is the front view of the toothed disc of one embodiment of the invention.
Fig. 2 is the side view of the toothed disc of one embodiment of the invention.
Fig. 3 is the axonometric drawing of the toothed disc of one embodiment of the invention.
Fig. 4 is the axonometric drawing of the door shaped stent of one embodiment of the invention.
Specific embodiment
Embodiment of the present invention is illustrated now in conjunction with attached drawing, the present invention is not limited to the following examples.
As Figure 1-Figure 4, a kind of marine shafting vibration-testing apparatus, including toothed disc and door shaped stent, toothed disc packet
Left semicircle ring 1, right semi-circle ring 2 are included, the two ends of left and right semicircular ring are equipped with connection convex block 3, and connection convex block is equipped with screw hole 4,
The outer peripheral surface of left and right annulus is equipped with half circular tooth disk 5 along center line；Door shaped stent includes left column 6, right column 7 and crossbeam 8, cross
Beam center be equipped with torsional oscillation sensor and the first lateral pickup, left and right column be equipped with the second oscillation crosswise sensor and
Extensional vibration sensor.
The probe of torsional oscillation sensor and the first lateral pickup is with the top center of toothed disc to positive setting, and second laterally
The center side of the probe of vibrating sensor and toothed disc to positive setting, the probe of extensional vibration sensor respectively with toothed disc
Both sides of the face are to positive setting.
Crossbeam center is equipped with mounting hole 9, is equipped with multiple mounting holes along axial uniform intervals on left and right column, to
Alignment sensor is installed, left and right column bottom is equipped with fixed pedestal 10, and door shaped stent is allowed to be fixed on the biggish knot of rigidity
On structure, column lower part is respectively equipped with fore-lying device case 11 and cable hole 12, to carry out pre-treatment to signal in time and to carry out
Transmitting.
Torsional oscillation sensor is Hall sensor, and the first, second oscillation crosswise sensor and extensional vibration sensor are electricity
Vortex passes
4) according to shafting torsional vibration test principle, test specification and shafting technical parameter to be measured, suitable Hall is selected
Sensor, and being installed in door type structure, just with acquisition twisting vibration twisting vibration original signal；
Sensor.
Toothed disc design meets shafting torsional oscillation first and tests the speed requirements, while finishing to toothed disc both sides of the face, expires
The electricity misfortune flow sensor test request of sufficient axial vibration test, toothed disc circumferential surface is finished, the electricity of whirling vibration test is met
Bring disaster upon flow sensor test request and shafting vibration test specification.To which shafting vibration includes twisting vibration, extensional vibration and convolution
Vibrate measuring point can centralized arrangement on toothed disc, achieve the purpose that measuring point is concentrated, improve the integrated of shafting vibration monitoring system
Degree and reliability, during real ship rotor string monitoring toothed disc inner ring with shafting contact area is smaller that tooth code-disc can be caused slightly to put
It is dynamic, therefore increase toothed disc inner ring and shafting interface width, inner race width is greater than outer ring width.Add a gear on axis
Disk can increase shafting quality to a certain extent, change the inherent characteristic of shafting.But for relatively entire shafting, the toothed disc matter
Amount is smaller, can be neglected, and the inherent characteristic of shaft changes also very small.
Shafting torsional oscillation selects measure speed gears disk and Hall sensor as signal collection system, to generate and shafting revolving speed
Relevant voltage pulse signal, then carries out that polynomial interopolation, filtering, complete cycle be average, the flat equalization process of tooth to it, and uses
Zero point method extracts the transient speed of shafting, and the measurement result for obtaining torsional oscillation is finally integrated to transient speed.Wherein measure speed gears
Disk size is needed according to shafting diameter being customized fabrication design, and the number of teeth is no less than 100.
Shafting oscillation crosswise and extensional vibration, which are acquired by current vortex sensor, to be measured, i.e., by a certain section of shafting
Two current vortex sensors of both horizontally and vertically installation, measure whirling vibration of shafting both direction at measuring point vibration width
It is worth size, and cross correlation process is carried out by the vibration signal to the two directions, obtains shafting oscillation crosswise information.Longitudinal vibration
Dynamic measurement is by a relatively simple, measures in shafting torsional oscillation tooth code-disc end face of testing the speed.
Using door shaped stent Integrated design shafting torsional oscillation, oscillation crosswise and extensional vibration mounting frame for sensor,.In axis
To face toothed disc installed position, door shaped stent is welded in the biggish structure of surrounding rigid.Increase door type work simultaneously
The rigidity of piece installing avoids door type tool part during real ship rotor string monitoring from shaking, and generates interference, door shaped stent to acquisition data
Situation can be investigated on the spot according to real ship shafting suitably adjust its height and width.Centralized arrangement sensor and cable in this way are easier to realize
The installation and protection of sensor and cable.
When being tested using the present invention, include the following steps:
1) according to shafting vibration test philosophy, test specification and marine shafting test site situation, reasonable gear is selected
Disk installation site；
2) toothed disc is installed, toothed disc two sides bolt is tightened, guarantees that toothed disc and shafting are rigidly connected, no relative motion；
3) height and width dimensions of door shaped stent according to field condition, are adjusted；In axial face toothed disc installation site
Place, door shaped stent is welded in the biggish structure of surrounding rigid；
5) according to whirling vibration of shafting test philosophy, test specification and shafting technical parameter to be measured, suitable electricity misfortune is selected
Flow sensor, and being installed in door shaped stent, just with acquisition whirling vibration original signal；
6) according to shafting longitudinal vibration test philosophy, test specification and shafting technical parameter to be measured, suitable electricity misfortune is selected
Flow sensor, and being installed in door shaped stent, just with acquisition extensional vibration original signal；
7) various kinds of sensors cable is connected to signal acquiring system, debugs signal acquiring system；
8) other function debuggings of shafting vibration monitoring system are completed.
The present invention makes full use of toothed disc, and torsional vibration of shafting, whirling vibration and axial vibration measuring point are integrated in tooth code
On disk, shafting vibration test philosophy was not only met, but also facilitate engineer application；All kinds of vibration-testing sensor centralized arrangements are in door simultaneously
On type bracket, is conducive to improve shafting vibration measuring accuracy and reliability, meets marine shafting oscillation real time monitoring purpose.
Claims (6)
1. a kind of marine shafting vibration-testing apparatus, it is characterised in that: including toothed disc and door shaped stent, the toothed disc includes
Left and right semicircular ring, the two ends of the left and right semicircular ring are equipped with connection convex block, and the connection convex block is equipped with screw hole, left,
The outer peripheral surface of right annulus is equipped with half circular tooth disk along center line；The door shaped stent includes left and right column and crossbeam, in the crossbeam
Heart position be equipped with torsional oscillation sensor and the first lateral pickup, the left and right column be equipped with the second oscillation crosswise sensor and
Extensional vibration sensor.
2. a kind of marine shafting vibration-testing apparatus according to claim 1, it is characterised in that the torsional oscillation sensor and
The probe of first lateral pickup is arranged with the top center of the toothed disc to positive, the second oscillation crosswise sensor
Probe and the center side of toothed disc to positive setting, the probe of the extensional vibration sensor respectively with the both sides of the face of toothed disc
To positive setting.
3. a kind of marine shafting vibration-testing apparatus according to claim 1, it is characterised in that the crossbeam center
Equipped with mounting hole, multiple mounting holes are equipped with along axial uniform intervals on the left and right column, left and right column bottom, which is equipped with, fixes
Pedestal, lower part are respectively equipped with fore-lying device case and cable hole.
4. a kind of marine shafting vibration-testing apparatus according to claim 3, it is characterised in that the torsional oscillation sensor is
Hall sensor, the first, second oscillation crosswise sensor and extensional vibration sensor are current vortex sensor.
5. a kind of marine shafting vibration-testing apparatus according to claim 3 or 4, it is characterised in that the tooth of the toothed disc
Number no less than 100.
6. a kind of marine shafting vibration-testing apparatus according to claim 3, it is characterised in that the inner ring of the toothed disc
Width is greater than outer ring width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615549.4A CN110332982A (en) | 2019-07-09 | 2019-07-09 | A kind of marine shafting vibration-testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615549.4A CN110332982A (en) | 2019-07-09 | 2019-07-09 | A kind of marine shafting vibration-testing apparatus |
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| Publication Number | Publication Date |
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| CN110332982A true CN110332982A (en) | 2019-10-15 |
Family
ID=68144742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910615549.4A Pending CN110332982A (en) | 2019-07-09 | 2019-07-09 | A kind of marine shafting vibration-testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932916A (en) * | 2021-10-25 | 2022-01-14 | 中国舰船研究设计中心 | Device and method for mounting vibration sensor of ship outboard composite material structure |
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| CN101871846A (en) * | 2010-06-11 | 2010-10-27 | 清华大学 | Online detection method for torsion vibration signal of automotive power transmission system |
| EP2594946A1 (en) * | 2011-11-18 | 2013-05-22 | Hamilton Sundstrand Corporation | Shaft speed and vibration sensor apparatus |
| CN103925988A (en) * | 2014-04-25 | 2014-07-16 | 哈尔滨工程大学 | Method for measuring torsional vibration of shafting |
| CN105890858A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Balance disc device applicable to shaft system vibration tests |
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2019
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Patent Citations (7)
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|---|---|---|---|---|
| CN101871846A (en) * | 2010-06-11 | 2010-10-27 | 清华大学 | Online detection method for torsion vibration signal of automotive power transmission system |
| EP2594946A1 (en) * | 2011-11-18 | 2013-05-22 | Hamilton Sundstrand Corporation | Shaft speed and vibration sensor apparatus |
| CN103925988A (en) * | 2014-04-25 | 2014-07-16 | 哈尔滨工程大学 | Method for measuring torsional vibration of shafting |
| CN105890858A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Balance disc device applicable to shaft system vibration tests |
| CN106872126A (en) * | 2017-01-19 | 2017-06-20 | 北京航空航天大学 | Large-scale magnetic coupling stiffness characteristics comprehensive test platform |
| RU183445U1 (en) * | 2018-02-16 | 2018-09-24 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный технический университет", ФГБОУ ВО "АГТУ" | DEVICE FOR RESEARCH OF TRANSVERSE VIBRATIONS OF SHIPPING |
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Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932916A (en) * | 2021-10-25 | 2022-01-14 | 中国舰船研究设计中心 | Device and method for mounting vibration sensor of ship outboard composite material structure |
| CN113932916B (en) * | 2021-10-25 | 2024-04-02 | 中国舰船研究设计中心 | Device and method for installing vibration sensor of ship outboard composite material structure |
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Application publication date: 20191015 |