CN106546664A - A kind of auxiliary device of Steel Wire Surface placement sensor - Google Patents
A kind of auxiliary device of Steel Wire Surface placement sensor Download PDFInfo
- Publication number
- CN106546664A CN106546664A CN201611031044.6A CN201611031044A CN106546664A CN 106546664 A CN106546664 A CN 106546664A CN 201611031044 A CN201611031044 A CN 201611031044A CN 106546664 A CN106546664 A CN 106546664A
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- sensor
- steel wire
- tubular body
- pressure
- wire surface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/262—Linear objects
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of auxiliary device of Steel Wire Surface placement sensor, belongs to physical detection technical field, including tubular body；Transducer arrangements, in the hollow intracavity central authorities of tubular body, are to be coaxially disposed with tubular body；Steel wire is contacted through one end of tubular body with sensor；The bottom of tubular body offers the perforating that steel wire passes through；Tubular body is provided with the regulating and controlling mechanism contacted with sensor in the one end away from perforating；Regulating and controlling mechanism is fixedly mounted by connector with tubular body, is made up of pressure assembly, partial pressure component and pressure apparatus, applies identical actuating pressure for the sensor to being placed in Steel Wire Surface.Auxiliary device of the present invention, the contact force between the contact position and sensor and Steel Wire Surface between sensor and Steel Wire Surface can strictly be controlled, to ensure the accuracy and reliability of sensor acquisition signal, and sensor can be reused, reduce experimental cost.
Description
Technical field
The invention belongs to physical detection technical field, and in particular to a kind of auxiliary device of Steel Wire Surface placement sensor.
Background technology
Acoustic emission is a kind of phenomenon that material or structure discharge strain energy in deformation fracture process, and strain energy will be with elasticity
The form of ripple is outwards propagated, and can recognize that position and the degree of injury for damaging occurs in structure by observing Characteristics of Elastic Wave change.
Acoustic current launching technique is applied to the damage monitoring of thin-slab structure (pressure oil tank, aircraft wing etc.) and tends to ripe, but in bridge
It is still at the experimental stage in this kind of labyrinth being made up of many high tensile steel wires of drag-line.Additionally, drag-line acoustic emission monitor(ing) experiment
Carry out firstly the need of in individual wire, however, carry out signals collecting in Steel Wire Surface placement sensor having difficulties.This be because
For the sensor for gathering signal is typically cylinder, and steel wire is then the less cylinder of diameter, it is difficult to firm that sensor is solid
It is scheduled on Steel Wire Surface；Meanwhile, existing test data shows, the different meetings of contact area and contact force between sensor and steel wire
Produce different result of the tests.So, existing Experimental on acoustic emission equipment mainly for platy structure, directly paste by usual sensor
In plate surface, or the reliability of signals collecting ensure that in surface of steel plate by magnet adsorption.And it is this kind of to act on steel wire
In elongate column structure, sensor is no longer that face contacts with Steel Wire Surface, but linear contact lay, adhesive tape is generally adopted in process of the test
Sensor is entangled in into Steel Wire Surface, or sensor is integrally sticked together with steel wire using glue, the shortcoming brought has：
1st, using adhesive tape colligation sensor and steel wire, it is impossible to control the contact area of steel wire and sensor, sensor piezoelectricity
Ceramic surface is circle, and when steel wire is passed through from piezoelectric ceramics centre of surface, contact area is maximum, and disalignment will cause to connect
Contacting surface product reduces, and the contact area that artificial colligation adhesive tape is produced is then uncontrollable.Also, adhesive tape colligation also uncontrollable steel wire
Contact force between sensor, the elastic of adhesive tape colligation depend entirely on subjective personal feeling, same person colligation twice
It cannot be guaranteed that with same elasticity, so as to produce different contact forces, and the size of contact force can affect to gather signal
Intensity, causes different result of the tests.
2nd, using glue bonding steel wire and sensor, as a large amount of glue are filled between steel wire and sensor, affect ripple
Communication process in steel wire, and glue not easy-clear after experiment terminates, affect the service life of sensor.
Therefore, it is to ensure that sensor measured data is reliable and stable, needs one kind badly and be specifically designed for elongated wire surface placement biography
The auxiliary device of sensor, with contact area and contact force between quantified controlling sensor and steel wire.
The content of the invention
In view of this, it is an object of the invention to provide a kind of auxiliary device of Steel Wire Surface placement sensor, Neng Gouyan
Lattice control the contact position and the contact force between sensor and Steel Wire Surface between sensor and Steel Wire Surface, to ensure to pass
The accuracy and reliability of sensor collection signal, and sensor can be reused, reduce experimental cost.
The present invention is achieved through the following technical solutions：
A kind of auxiliary device of Steel Wire Surface placement sensor includes in hollow tubular body, the transducer arrangements in
The hollow intracavity central authorities of the tubular body, and sensor is to be coaxially disposed with tubular body；The steel wire is through the pipe
One end of shape body, and Steel Wire Surface contacted with sensor；The bottom of the tubular body offers steel wire by tubulose sheet
The perforating of body, the perforating are two, and two perforatings are arranged symmetrically along the shaft centre line of tubular body；The tubulose
Body is provided with the regulating and controlling mechanism contacted with the sensor in the one end away from perforating, and regulating and controlling mechanism and steel wire relative to
Sensor heteropleural is arranged；The regulating and controlling mechanism and tubular body by connector fixed installation, by pressure assembly, partial pressure component and
Pressure apparatus is constituted, and applies identical actuating pressure for the sensor to being placed in Steel Wire Surface；The pressure assembly with
The connector is connected, and for adjusting the actuating pressure, makes sensor act on Steel Wire Surface, and the partial pressure component is acted on
On the sensor, for disperseing the actuating pressure, sensor is made to obtain uniform actuating pressure, the pressure apparatus is located at
Between the pressure assembly and the partial pressure component, for the actuating pressure received in pressure assembly is passed to partial pressure component
And the clear and definite actuating pressure.
Further, the tubular body inwall is with the cross section identical circular cross section with the sensor outer wall.
Further, also include the sleeve between tubular body and sensor, the sleeve outer wall with the pipe
The cross section identical non-circular cross sections of shape inner body wall, its inwall is with the cross section identical with the sensor outer wall
Circular cross section；The non-circular cross sections are D-shaped or polygon or oval cross section.
Further, support of the connector for the end cap or shaft-like crossbeam or cross-like of tabular.
Further, the pressure apparatus of the regulating and controlling mechanism is pressure gauge.
Further, the pressure assembly of the regulating and controlling mechanism include the look nut being fixedly mounted on the connector and with
The screw press that the pressure apparatus is connected, look nut are spun by screw thread with screw press.
Further, the partial pressure component of the regulating and controlling mechanism includes the scattering rod being connected with the pressure apparatus and located at dispersion
Roller on bar, the roller are arranged in the distal end away from the scattering rod with pressure apparatus junction.
Further, the roller is rubber roll.
It is an advantage of the current invention that：This auxiliary device can be with the sensor in effectively solving steel wire damage check process of the test
Connectivity problem, by the position between fixed sensor and Steel Wire Surface, and applies clear and definite steel wire and sensor contact forces,
To ensure the accuracy and reliability of sensor acquisition signal, and sensor can be reused, reduce experimental cost.Meanwhile,
The accurate effective individual wire damage check test completed with the auxiliary device is the basis for carrying out Damages in Stay Cables monitoring.
Other advantages of the present invention, target and feature will be illustrated to a certain extent in the following description, and
And to a certain extent, based on being will be apparent to investigating hereafter to those skilled in the art, Huo Zheke
To be instructed from the practice of the present invention.The present invention target and other advantages can be realized by description below and
Obtain.
Description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step, wherein：
Fig. 1 is the facade structures schematic diagram of auxiliary device of the present invention；
Fig. 2 is the planar structure schematic diagram of auxiliary device of the present invention；
Wherein, 1 is tubular body, and 2 is sensor, and 3 is steel wire, and 4 is connector, and 5 is regulating and controlling mechanism；Wherein, 11 is to wear
Apertured, 21 is sensor external connection, and 51 is pressure assembly, and 52 is partial pressure component, and 53 is pressure apparatus.
Specific embodiment
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail；It should be appreciated that preferred embodiment
Only for the explanation present invention, rather than in order to limit the scope of the invention.
As former major part sensor is to be placed in planar surface in use, so sound is sent out both at home and abroad at present
Penetrate testing equipment producer and provide only sensor, there is no attachment means between special sensor and steel wire.But work as the cylinder
When sensor is used for steel wire test, precision test is then difficult to without additional coupling arrangement.So, this auxiliary device can be solved
Sensor connectivity problem in high-tensile steel wires process of the test, meanwhile, the test of accurate effectively high-tensile steel wires is to carry out drag-line
The basis of damage monitoring.
As shown in Figure 1, 2, the auxiliary device of the Steel Wire Surface placement sensor that this example is provided is included in hollow tubulose
Body, its purpose is to fix the position of sensor and steel wire, and applies clear and definite steel wire and sensor contact forces.First,
This auxiliary device by the perforate on the kernel of section line of tubular body 1, by steel wire 3 is passed through in the hole, so as to play fixed steel
The position of silk 3, the i.e. one end of steel wire 3 through tubular body 1, the bottom of tubular body offer steel wire 3 by tubular body 1
Perforating 11, perforating 11 is two, and two perforatings 11 are arranged symmetrically along the shaft centre line of tubular body 1, and tubulose
Body 1 adopts hollow structure, is arranged in the hollow intracavity of tubular body 1 beneficial to sensor 2, the i.e. sensor 2 is placed
Centre, and sensor 2 and tubular body 1, to be coaxially disposed, 3 surface of steel wire is contacted with sensor 2, can so make sensor 2 and
Contact area between steel wire 3 is maximized；The tubular body 1 is also provided with and 2 phase of sensor in the one end away from perforating 11
The regulating and controlling mechanism 5 of contact, and regulating and controlling mechanism 5 and steel wire 3 are relative to 2 heteropleural of sensor arrangement；The regulating and controlling mechanism 5 and tubular body
1 is fixedly mounted by connector 4, and the connector 4 is detachably arranged on tubular body 1, to change the biography of different frequency
Sensor 2, is made up of pressure assembly 51, partial pressure component 52 and pressure apparatus 53, can be to the sensor 2 that is placed on 3 surface of steel wire
Apply identical actuating pressure, the i.e. pressure assembly 51 to be connected with connector 4, by the pressure regulation spiral shell being fixedly mounted on connector 4
(unmarked) composition of female (unmarked) and the screw press being connected with pressure apparatus 52, the look nut pass through spiral shell with screw press
Stricture of vagina spins, and can adjust the actuating pressure, makes sensor 2 act on 3 surface of steel wire；The partial pressure component 52 is acted on sensor 2,
Roller (unmarked) by the scattering rod (unmarked) being connected with pressure apparatus 53 and on scattering rod is constituted, and the roller is in the back of the body
Distal end from scattering rod Yu 53 junction of pressure apparatus is arranged, and so dispersibles the actuating pressure, sensor 2 is obtained uniformly
Actuating pressure, the roller can be made using quality of rubber materials, pressure protect sensor 2 beneficial to pressing to sensor 2, and strengthening which makes
Use the life-span；The pressure apparatus 53 can adopt pressure gauge, between pressure assembly 51 and partial pressure component 52, can will receive pressure
Actuating pressure on component 51 passes to partial pressure component 52 and the clear and definite actuating pressure；The present invention by turn screw press so as to
Downward actuating pressure is produced, and is acted on the actuating pressure homodisperse on sensor by scattering rod, so that passing
Sensor has constant contact force with the contact forces of Steel Wire Surface, meanwhile, understand to test every time by the reading on pressure gauge
The contact force of steel wire and sensor in journey, to ensure each stimulus collection with identical sensor contact area and contact
Power.
In the present embodiment, 1 inwall of the tubular body is with circular with the cross section identical of 2 outer wall of the sensor horizontal
Section.Certainly in various embodiments, can be with setting sleeve (not shown), the set between tubular body 1 and sensor 2
Drum outer wall with the cross section identical non-circular cross sections with 1 inwall of tubular body, its inwall with the sensor 2 outside
The cross section identical circular cross section of wall, so, on the one hand can ensure that sensor does not occur radial rotating with tubular body, separately
On the one hand can ensure that the sensor of different model size has between the tubular body and be coaxially disposed relation, beneficial to sensor
Maximum contact area is obtained with Steel Wire Surface；The non-circular cross sections are D-shaped or polygon or oval cross section.
In the present embodiment, end cap of the connector for tabular, certainly in various embodiments, can also be shaft-like horizontal stroke
The support of beam or cross-like.
In the present embodiment, can also offer on the outer wall of the tubular body for observing the window of pressure gauge reading, profit
In the described actuating pressure of regulation.
In another embodiment, rubber blanket (not shown) is provided with the hole wall of the perforating 11, to reduce tubular body
The interference propagated by steel wire gravitational wave.
In another embodiment, take-up device can be arranged on 1 outer wall of tubular body and near perforating 11 (not drawing
Go out), the take-up device is made up of strut and the grip block being arranged on strut, and the grip block is used for clamped wire, and can be along steel
The axial direction of silk horizontally slips on strut, with the taut wire under the effect of the tightening force of two grip blocks.
Adopt this auxiliary device Steel Wire Surface placement sensor method for arranging for：First, steel wire 3 is applied in into tubulose
On the perforating 11 of body 1, and it is straightened；Then, sensor 2 is put into from tubular body 1 in the one end away from perforating 11,
And make its bottom contact with 3 surface of steel wire；Then, the connector 4 with regulating and controlling mechanism 5 is arranged on tubular body 1, and
The partial pressure component 52 of regulating and controlling mechanism 5 is made to contact with the top of sensor 2；Then, the pressure assembly 51 of regulating and controlling mechanism 5 is implemented to adjust
Section, makes sensor 2 obtain active force, and by the pressure apparatus 53 of regulating and controlling mechanism 5 clearly active force；So as to strictly control to pass
Contact position between sensor 2 and steel wire 3 and the contact force between sensor 2 and steel wire 3, and ensure the accurate of signals collecting
Property and reliability, can reuse sensor 2, reduce experimental cost.
Adopt this auxiliary device after Steel Wire Surface arrangement the method that measures for：First, applied by pressure assembly 51
Pressure, and sensor 2 is passed to by partial pressure component 52, and the active force that regulation is tested, now, the biography are obtained by pressure apparatus 53
Contact force of the sensor 2 with 3 surface of steel wire herein is determined, and is connected by the sensor external connection 21 being connected with sensor 2
Testing equipment, so as to detect that steel wire 3 herein whether there is damage phenomenon；Then, lead to during defect at the measuring steel wire 3 times
Cross and unscrew pressure assembly 51, tubular body 1 can be caused to drive between sensor 2 and steel wire 3 can be subjected to displacement, steel wire to be determined
Tightened behind 3 lower place position to be measured again, and adjust pressure assembly 51, and by pressure apparatus 53 make sensor 2 can also obtain with
The identical active force that measurement regulation is tested before, so as to detect that the steel wire herein 3 after displacement whether there is damage phenomenon；Most
Afterwards, by multiple aforesaid operations, so that it may complete the fault localization situation of whole steel wire 3.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, it is clear that those skilled in the art
Member the present invention can be carried out it is various change and modification without departing from the spirit and scope of the present invention.So, if the present invention
These modifications and modification belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising these
Including change and modification.
Claims (8)
1. a kind of auxiliary device of Steel Wire Surface placement sensor, including in hollow tubular body, it is characterised in that：The biography
Sensor is arranged in the hollow intracavity central authorities of the tubular body, and sensor is to be coaxially disposed with tubular body；The steel wire is passed through
One end of the tubular body is through at, and Steel Wire Surface is contacted with sensor；The bottom of the tubular body offers steel wire
By the perforating of tubular body, the perforating is two, and two perforatings are along the symmetrical cloth of shaft centre line of tubular body
Put；The tubular body is provided with the regulating and controlling mechanism contacted with the sensor, and regulating and controlling mechanism in the one end away from perforating
Arrange relative to sensor heteropleural with steel wire；The regulating and controlling mechanism is fixedly mounted by connector with tubular body, by pressure group
Part, partial pressure component and pressure apparatus composition, applies identical actuating pressure for the sensor to being placed in Steel Wire Surface；Institute
State pressure assembly to be connected with the connector, for adjusting the actuating pressure, make sensor act on Steel Wire Surface, described point
Pressure component is acted on the sensor, for disperseing the actuating pressure, makes sensor obtain uniform actuating pressure, described
Pressure apparatus is located between the pressure assembly and the partial pressure component, and the actuating pressure for receiving in pressure assembly is passed
Pass partial pressure component and the clear and definite actuating pressure.
2. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：The tubular body
Inwall is with the cross section identical circular cross section with the sensor outer wall.
3. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：Also include located at pipe
Sleeve between shape body and sensor, the sleeve outer wall is with the cross section identical not rounded with the tubular body inwall
Shape cross section, its inwall is with the cross section identical circular cross section with the sensor outer wall；The non-circular cross sections
For D-shaped or polygon or oval cross section.
4. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：The connector is
The support of the end cap of tabular or shaft-like crossbeam or cross-like.
5. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：The regulating and controlling mechanism
Pressure apparatus be pressure gauge.
6. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：The regulating and controlling mechanism
The pressure assembly screw press that includes the look nut being fixedly mounted on the connector and be connected with the pressure apparatus,
Look nut is spun by screw thread with screw press.
7. the auxiliary device of Steel Wire Surface placement sensor according to claim 1, it is characterised in that：The regulating and controlling mechanism
Partial pressure component include the scattering rod being connected with the pressure apparatus and the roller on scattering rod, the roller is away from institute
The distal end that scattering rod is stated with pressure apparatus junction is arranged.
8. the auxiliary device of Steel Wire Surface placement sensor according to claim 7, it is characterised in that：The roller is rubber
Rubber-surfaced roll wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031044.6A CN106546664A (en) | 2016-11-22 | 2016-11-22 | A kind of auxiliary device of Steel Wire Surface placement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031044.6A CN106546664A (en) | 2016-11-22 | 2016-11-22 | A kind of auxiliary device of Steel Wire Surface placement sensor |
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| CN106546664A true CN106546664A (en) | 2017-03-29 |
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|---|---|---|---|
| CN201611031044.6A Pending CN106546664A (en) | 2016-11-22 | 2016-11-22 | A kind of auxiliary device of Steel Wire Surface placement sensor |
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Application publication date: 20170329 |