CN106643408A - Horizontal displacement measuring device - Google Patents
Horizontal displacement measuring device Download PDFInfo
- Publication number
- CN106643408A CN106643408A CN201611060490.XA CN201611060490A CN106643408A CN 106643408 A CN106643408 A CN 106643408A CN 201611060490 A CN201611060490 A CN 201611060490A CN 106643408 A CN106643408 A CN 106643408A
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- Prior art keywords
- pulley
- displacement
- pull spring
- horizontal
- backboard
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a horizontal displacement measuring device, and the device comprises a tensile spring, a horizontal measuring wheel carrier, a displacement sensor, and a counter weight. One end of the tensile spring is fixedly connected with a first fixed object, and the other end of the tensile spring is connected with the counter weight. The horizontal measuring wheel carrier comprises a back plate, a first pulley, a second pulley, and a support. The back plate is fixed on a second fixed object. The first pulley and the second pulley are respectively disposed at the upper and lower parts of the back plate. The inner edges of the first and second pulleys respectively abut against the tensile spring. The inner edge of the first pulley and the inner edge of the second pulley are located on the same vertical line perpendicular to the ground. The support is disposed at the central part of the back plate, and is used for fixing the displacement sensor. The lower end of the displacement sensor is provided with a wire clamp. The wire clamp is fixedly connected with the tensile spring. The device can effectively and quickly limit the large-angle swing of the counter weight, improves the measurement precision, reduces the friction between the pulleys and the tensile spring, achieves the effectively transmission of displacement, and also prevents the tensile from being clamped deadly.
Description
Technical field
The present invention relates to the structure monitoring technical field in civil engineering, more particularly to a kind of horizontal displacement measurement apparatus.
Background technology
Relatively broad application has been obtained in civil engineering surveying using pull spring method measurement displacement (deformation), but in reality
When using, adopt specific form, details different.The principle of the method is：By measured point displacement, by thermal expansion system
The stable pull spring of number is delivered to measurement end, and measurement end is all kinds of measuring equipments, then obtains shift value by measurement end measurement.
To realize the measurement that the horizontal diameter to heavy construction structure (for example, npp safety shell structure) changes, make
When measuring displacement with above-mentioned use pull spring method, increase displacement transmission support is typically necessary.In actual applications, the position for being used
The form for moving transmission support is varied.But, in prior art the test error of many concrete methods of realizing more than 0.1mm,
Its transmission effect is not satisfactory.
The content of the invention
In view of this, the invention provides a kind of horizontal displacement measurement apparatus, such that it is able to effectively and quickly limit weight
The significantly swing of hammer, improves the precision of measurement, reduces the friction between pulley and pull spring, realizes effective transmission of displacement,
Simultaneously pull spring is also prevented from by the stuck phenomenon of device.
What technical scheme was specifically realized in：
A kind of horizontal displacement measurement apparatus, including：Pull spring, horizontal survey wheel carrier, displacement transducer and weight；
One end of the pull spring is fixedly connected with the first fixture, and the other end of the pull spring is connected with the weight；
The horizontal survey wheel carrier includes：Backboard, first pulley, second pulley and support；
The backboard is fixed on the second fixture；
The first pulley and the second pulley are separately positioned on the upper and lower of the backboard；
The inward flange of the first pulley and the second pulley is abutted with the pull spring；
The inward flange of the inward flange of the first pulley and the second pulley same perpendicular to ground vertical line
On；
The support is arranged on the middle part of the backboard, the displacement sensors for fixing；
The lower end of institute's displacement sensors is provided with line card；The line card is fixedly connected with the pull spring.
Preferably, the horizontal displacement measurement apparatus are still further comprised：Be arranged on the pull spring and the first fixture it
Between displacement calibrating device；
One end of the displacement calibrating device is fixedly connected with the first fixture, the other end of the displacement calibrating device with it is described
One end connection of pull spring.
Preferably, the other end of the displacement calibrating device is connected by annular equipment with one end of the pull spring.
Preferably, being additionally provided with the 3rd pulley on the backboard；
3rd pulley is arranged between the first pulley and second pulley, and the outward flange of the 3rd pulley with
The pull spring is abutted.
Preferably, the distance between the 3rd pulley and described second pulley are less than the 3rd pulley and described first
The distance between pulley.
Preferably, the first pulley, second pulley and the 3rd pulley are additionally provided with regulation with the junction of the backboard
Fastener；
The regulation fastener is used to adjust each pulley and the vertical range of the backboard, and each pulley is fixed
On the backboard.
Preferably, institute's displacement sensors are DC linear displacement transducer.
Preferably, first fixture and the second fixture are positioned at the two ends of horizontal diameter in npp safety shell
Inwall.
Preferably, the displacement calibrating device and horizontal survey wheel carrier are respectively welded at first fixture by weldment
On the second fixture.
Preferably, the pull spring is invar wire.
As seen from the above technical solution, in the horizontal displacement measurement apparatus of the present invention, due to being provided with horizontal survey wheel
Frame, and first pulley and second pulley are at least provided with horizontal survey wheel carrier, and pull spring respectively with first pulley and
The inward flange of two pulleys is abutted, and the inward flange of the inward flange of first pulley and second pulley in same hanging down perpendicular to ground
On straight line, therefore the horizontal displacement of pull spring can be changed into vertical displacement amount by first pulley, and same perpendicular to
The inward flange of first pulley and second pulley on the vertical line on ground can effectively and quickly limit the significantly pendulum of weight
It is dynamic, such that it is able to improve the precision of measurement；It can be rotation to be additionally, since each pulley, therefore can also greatly reduce cunning
Friction between wheel and pull spring, realizes effective transmission of displacement, while being also prevented from pull spring by the stuck phenomenon of device.
Further, due to can between the first pulley and second pulley arrange the 3rd pulley, and
So that the outward flange of the 3rd pulley abuts with the pull spring so that above-mentioned horizontal displacement measurement apparatus be provided with two it is auxiliary
Help wheel (i.e. second pulley and the 3rd pulley).Because pull spring have passed through the not ipsilateral of the two auxiliary wheels, therefore can be more
Efficiently control the excessive of weight to rock.
Description of the drawings
Fig. 1 is the structural representation of the horizontal displacement measurement apparatus in one embodiment of the present of invention.
Fig. 2 is the structural representation of the horizontal displacement measurement apparatus in an alternative embodiment of the invention.
Fig. 3 is the side view of the horizontal survey wheel carrier in the embodiment of the present invention.
Fig. 4 is the Section A-A schematic diagram of Fig. 3.
Fig. 5 is the schematic diagram that multiple horizontal displacement measurement apparatus measure horizontal displacement used in the embodiment of the present invention.
Specific embodiment
To make technical scheme and advantage become more apparent, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Fig. 1 is the structural representation of the horizontal displacement measurement apparatus in the embodiment of the present invention.As shown in figure 1, the present invention is real
The horizontal displacement measurement apparatus applied in example include：Pull spring 11, horizontal survey wheel carrier 12, DC linear displacement transducer (DCLVDT)
13 and weight 14；
One end of the pull spring 11 is fixedly connected with the first fixture 15, the other end of the pull spring 11 and the weight 15
Connection；
The horizontal survey wheel carrier 12 includes：Backboard 20, first pulley 21, second pulley 22 and support 23；
The backboard 21 is fixed on the second fixture 16；
The first pulley 21 and the second pulley 22 are separately positioned on the upper and lower of the backboard 20；
The inward flange of the first pulley 21 and the second pulley 22 is abutted with the pull spring 11；
The inward flange of the inward flange of the first pulley 21 and the second pulley 22 hanging down perpendicular to ground in same
On straight line；
The support 23 is arranged on the middle part of the backboard 20, for fixing the DCLVDT 13；
The lower end of the DCLVDT 13 is provided with line card 31；The line card 31 is fixedly connected with the pull spring 11.
In addition, preferably, Fig. 2 is the structural representation of the horizontal displacement measurement apparatus in an alternative embodiment of the invention
Figure, as shown in Fig. 2 in a particular embodiment of the present invention, the horizontal displacement measurement apparatus can further include：Arrange
Displacement calibrating device 17 between the fixture 15 of the pull spring 11 and first；
One end of the displacement calibrating device 17 is fixedly connected with the first fixture 15, the other end of the displacement calibrating device 17
It is connected with one end of the pull spring 11.
Preferably, in a particular embodiment of the present invention, the other end of the displacement calibrating device 17 can also be by annular
Equipment 18 is connected with one end of the pull spring 11.
It can be seen from the structure of above-mentioned horizontal displacement measurement apparatus, in the inventive solutions, if necessary to measure
Horizontal displacement change (for example, horizontal diameter change) in npp safety shell structure shell of heavy construction structure, then can be by
First fixture and the second fixture are separately positioned on the level for treating geodesic structure (i.e. in the containment of npp safety shell structure)
Two ends of diameter, and above-mentioned displacement calibrating device is fixed on the first fixture, then by the backboard of the horizontal survey wheel carrier
It is fixed on the second fixture；One end of pull spring is connected with displacement calibrating device, and the other end is connected with weight.In the gravity of the weight
Under effect, pull spring will be straightened, and the pull spring is ridden in the first pulley and second pulley of horizontal survey wheel carrier, and respectively with
The inward flange of one pulley and second pulley is abutted.
Therefore, when the horizontal displacement to be measured of heavy construction structure changes (for example, in above-mentioned npp safety shell
When portion fills, is depressured, containment stress deformation, the horizontal diameter in containment will produce change), pull spring by occurred level displacement,
Pull spring now will drive on horizontal survey wheel carrier the in the presence of the self gravitation of weight (for example, weight is 10kg)
There is corresponding rotation in one pulley and second pulley, the horizontal displacement of pull spring is converted into into pull spring in the vertical position of vertical direction
Move.Because the line card of the lower end of DCLVDT is fixedly connected with the pull spring, therefore pull spring can drive line card under weight effect
So as to the measurement bar for driving DCLVDT produces displacement, so that the displacement of the pull spring can pass through DCLVDT displacement transducers
Measurement is obtained.
In the inventive solutions, because pull spring is abutted respectively with the inward flange of first pulley and second pulley, and
In same on the vertical line on ground, therefore first pulley can for the inward flange of first pulley and the inward flange of second pulley
So that the horizontal displacement of pull spring is changed into into vertical displacement amount, and the first cunning in same on the vertical line on ground
The inward flange of wheel and second pulley can effectively limit the excessive swing of weight, thus the free state of weight need not be done
It is limit more；It can be rotation to be additionally, since each pulley, therefore can also greatly reduce the friction between pulley and pull spring,
Do not interfere with effective transmission of displacement, but also the phenomenon that pull spring is stuck can be avoided.
In addition, in the inventive solutions, can also be further improved.For example, preferably, such as Fig. 2 institutes
Show, in a particular embodiment of the present invention, can be with the setting one the 3rd between the first pulley 21 and second pulley 22
Pulley 23, i.e., be additionally provided with the 3rd pulley 23 on described backboard 20；3rd pulley 23 is arranged on the He of the first pulley 21
Between second pulley 22, and the outward flange of the 3rd pulley 23 abuts with the pull spring.Therefore, the 3rd pulley 23 is outer
Edge and the first pulley 21, the inward flange of second pulley 22 are also in same on the vertical line on ground.
Further, preferably, in a particular embodiment of the present invention, the 3rd pulley 23 and the second pulley
The distance between 22 less than the distance between the 3rd pulley 23 and described first pulley 21.
By arranging the 3rd above-mentioned pulley, above-mentioned horizontal displacement measurement apparatus can be caused to be provided with two auxiliary wheels
(i.e. second pulley and the 3rd pulley).Because pull spring have passed through the not ipsilateral of the two auxiliary wheels, therefore can be more effectively
Control the excessive of weight rocks (effect when distance of two auxiliary wheels is closer is more preferable) on ground.
In technical scheme, the front and back position of three pulleys according to the demand of practical application, can be adjusted, be made
The edge for obtaining each pulley reaches the effect for touching pull spring.
For example, preferably, in a particular embodiment of the present invention, the first pulley, second pulley and the 3rd pulley be (such as
Fruit is provided with the 3rd pulley) it is additionally provided with regulation fastener (not shown) with the junction of the backboard；The regulation
Fastener is used to adjust the front and back position of each pulley, that is, adjust the vertical range of each pulley and the backboard, and will be each
Individual pulley is fixed on the backboard.
Preferably, in a particular embodiment of the present invention, first fixture and the second fixture can be nuclear power plants
Positioned at the inwall at the two ends of horizontal diameter in containment.
Certainly, in practical application scene, there may exist in horizontal diameter direction in npp safety shell and much construct
Thing, so that pull spring is logical without farad.At this time it is also possible to any one in the first fixture and the second fixture is set to peace
The surface of the structures in full shell, and the inwall another fixture being set in containment, now, by measuring horizontal position
The change of shifting, similarly can be effectively monitored and be measured to the displacement of the horizontal diameter in npp safety shell.
In addition, preferably, in a particular embodiment of the present invention, the displacement calibrating device and horizontal survey wheel carrier pass through
Weldment is respectively welded on first fixture and the second fixture.
For example, as shown in Fig. 2 the displacement calibrating device can be welded on first fixture by A types weldment 41,
The horizontal survey wheel carrier can be welded on second fixture by Type B weldment 42.
Further, preferably, in a particular embodiment of the present invention, the weldment (for example, A, Type B weldment) is
It is welded on the Leak-tight liner of the inwall of containment structure or by seccotine and is bonded on Leak-tight liner.
Preferably, in a particular embodiment of the present invention, a hole is also provided with the weldment, for using passing through
Horizontal survey wheel carrier or displacement calibrating device (if being provided with displacement calibrating device) are fixed on institute by the bolt or screw in the silk hole
State on weldment.
In the inventive solutions, it is possible to use a horizontal displacement measurement apparatus are to the water in npp safety shell
The displacement in straight footpath is monitored and measures, it is also possible to using multiple horizontal displacement measurement apparatus simultaneously in npp safety shell
The displacement of horizontal diameter be monitored and measure, as shown in Figure 5.
When being monitored and measuring using multiple horizontal displacement measurement apparatus, the water of different directions can be monitored and measured
The displacement in straight footpath.
In addition, preferably, in a particular embodiment of the present invention, the pull spring can be invar wire.Preferably, the indium
The diameter of watt silk can be 0.8mm.
Further, preferably, in a particular embodiment of the present invention, the displacement calibrating device can be spiral micrometer
Device, or other displacement calibrating devices.
In addition, preferably, as shown in Figure 3, Figure 4, in a particular embodiment of the present invention, the horizontal survey wheel carrier 12
Be additionally provided with backboard 20 regulation air level 24, for monitoring the installation perpendicularity of the horizontal survey wheel carrier, such that it is able to
Ensure the installation perpendicularity of the horizontal survey wheel carrier in installation process.
Additionally, in the inventive solutions, can be with according to the overall chi for treating geodesic structure (for example, containment structure)
It is very little, the total length of pull spring is set.For example, preferably, in a particular embodiment of the present invention, the length of the pull spring can be set
It is equipped with 50m shorter or longer.
Gravitative Loads, the rubbing action of pull spring and horizontal survey wheel carrier in view of horizontal pull spring (for example, invar wire), cunning
Wheel shaft gap and machining accuracy etc. affect measure error factor, and through live multiple authentication, measure error can be by before
The 0.080mm (± 25mm ranges) taken turns more under many side controls is reduced to 0.055mm, such that it is able to effectively improve measurement essence
Degree.
In sum, in the inventive solutions, due to being provided with horizontal survey wheel carrier, and in horizontal survey wheel carrier
On be at least provided with first pulley and second pulley, and pull spring is abutted respectively with the inward flange of first pulley and second pulley,
And the inward flange of the inward flange of first pulley and second pulley in same on the vertical line on ground, therefore first pulley
The horizontal displacement of pull spring can be changed into vertical displacement amount, and in same on the vertical line on ground first
The inward flange of pulley and second pulley can effectively and quickly limit the significantly swing of weight, such that it is able to improve measurement
Precision；It can be rotation to be additionally, since each pulley, therefore can also greatly reduce the friction between pulley and pull spring, real
Effective transmission of existing displacement, while being also prevented from pull spring by the stuck phenomenon of device.
Further, due to can between the first pulley and second pulley arrange the 3rd pulley, and
So that the outward flange of the 3rd pulley abuts with the pull spring so that above-mentioned horizontal displacement measurement apparatus be provided with two it is auxiliary
Help wheel (i.e. second pulley and the 3rd pulley).Because pull spring have passed through the not ipsilateral of the two auxiliary wheels, therefore can be more
Efficiently control the excessive of weight to rock.
Additionally, above-mentioned horizontal displacement measurement apparatus are in confined space or under conditions of avoiding external air flow interference, can be with
More accurate displacement measurement is realized, and npp safety shell structure exactly provides this place, therefore, above-mentioned horizontal displacement
Measurement apparatus can be advantageously applied to the monitoring and measurement of the horizontal displacement of npp safety shell structure, efficiently solve shell
The problem that outer plumb line measurement device displacement measuring point is not enough.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (10)
1. a kind of horizontal displacement measurement apparatus, it is characterised in that include：Pull spring, horizontal survey wheel carrier, displacement transducer and weight
Hammer；
One end of the pull spring is fixedly connected with the first fixture, and the other end of the pull spring is connected with the weight；
The horizontal survey wheel carrier includes：Backboard, first pulley, second pulley and support；
The backboard is fixed on the second fixture；
The first pulley and the second pulley are separately positioned on the upper and lower of the backboard；
The inward flange of the first pulley and the second pulley is abutted with the pull spring；
The inward flange of the inward flange of the first pulley and the second pulley is in same on the vertical line on ground；
The support is arranged on the middle part of the backboard, the displacement sensors for fixing；
The lower end of institute's displacement sensors is provided with line card；The line card is fixedly connected with the pull spring.
2. device according to claim 1, it is characterised in that the horizontal displacement measurement apparatus are still further comprised：If
Put the displacement calibrating device between the pull spring and the first fixture；
One end of the displacement calibrating device is fixedly connected with the first fixture, the other end and the pull spring of the displacement calibrating device
One end connection.
3. device according to claim 2, it is characterised in that：
The other end of the displacement calibrating device is connected by annular equipment with one end of the pull spring.
4. device according to claim 1, it is characterised in that：
The 3rd pulley is additionally provided with the backboard；
3rd pulley is arranged between the first pulley and second pulley, and the outward flange of the 3rd pulley with it is described
Pull spring is abutted.
5. device according to claim 4, it is characterised in that：
The distance between 3rd pulley and the second pulley are less than between the 3rd pulley and the first pulley
Distance.
6. the device according to claim 4 or 5, it is characterised in that：
The first pulley, second pulley and the 3rd pulley are additionally provided with regulation fastener with the junction of the backboard；
The regulation fastener is used to adjust each pulley and the vertical range of the backboard, and each pulley is fixed on into institute
State on backboard.
7. device according to claim 1, it is characterised in that：
Institute's displacement sensors are DC linear displacement transducer.
8. device according to claim 1, it is characterised in that：
First fixture and the second fixture are positioned at the inwall at the two ends of horizontal diameter in npp safety shell.
9. the device according to claim 1 or 8, it is characterised in that：
The displacement calibrating device and horizontal survey wheel carrier are respectively welded at first fixture and second and fix by weldment
On thing.
10. device according to claim 1, it is characterised in that：
The pull spring is invar wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060490.XA CN106643408B (en) | 2016-11-25 | 2016-11-25 | A kind of horizontal displacement measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060490.XA CN106643408B (en) | 2016-11-25 | 2016-11-25 | A kind of horizontal displacement measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106643408A true CN106643408A (en) | 2017-05-10 |
| CN106643408B CN106643408B (en) | 2019-10-22 |
Family
ID=58812246
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611060490.XA Active CN106643408B (en) | 2016-11-25 | 2016-11-25 | A kind of horizontal displacement measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106643408B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462143A (en) * | 2017-06-20 | 2017-12-12 | 昆明理工大学 | A kind of Bidirectional displacement meter |
| CN108253948A (en) * | 2017-12-25 | 2018-07-06 | 中冶建筑研究总院有限公司 | A kind of vertical line handler |
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| CN105547217A (en) * | 2015-12-22 | 2016-05-04 | 中冶建筑研究总院有限公司 | Displacement generator |
| CN106092072A (en) * | 2016-08-17 | 2016-11-09 | 中冶建筑研究总院有限公司 | A kind of pulley bracket for plumb line vertical deflection sensor |
| CN206450155U (en) * | 2016-11-25 | 2017-08-29 | 中冶建筑研究总院有限公司 | A kind of horizontal displacement measurement apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10206208A (en) * | 1996-12-26 | 1998-08-07 | Pohang Iron & Steel Co Ltd | Apparatus and method for measuring dust level of sealed space utilizing pulley and displacement meter |
| CN2329938Y (en) * | 1998-04-16 | 1999-07-21 | 电力工业部电力自动化研究院 | Automatic weight leading thread type horizontal displacement meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462143A (en) * | 2017-06-20 | 2017-12-12 | 昆明理工大学 | A kind of Bidirectional displacement meter |
| CN108253948A (en) * | 2017-12-25 | 2018-07-06 | 中冶建筑研究总院有限公司 | A kind of vertical line handler |
| CN108253948B (en) * | 2017-12-25 | 2023-12-01 | 中冶建筑研究总院有限公司 | Vertical line loading and unloading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106643408B (en) | 2019-10-22 |
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