CN209470986U - A kind of bitumen ductility instrument based on video auxiliary - Google Patents
A kind of bitumen ductility instrument based on video auxiliary Download PDFInfo
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- CN209470986U CN209470986U CN201822200671.9U CN201822200671U CN209470986U CN 209470986 U CN209470986 U CN 209470986U CN 201822200671 U CN201822200671 U CN 201822200671U CN 209470986 U CN209470986 U CN 209470986U
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Abstract
A kind of bitumen ductility instrument based on video auxiliary, belongs to highway structure material bitumen ductility detection field.Water bath with thermostatic control, control and display device are located in cabinet body, folder guide rail, camera guide rail, fixed clip pedestal, mobile folder pedestal, camera, folder traction electric machine, camera traction electric machine are set in water bath with thermostatic control, the water bath with thermostatic control water surface is arranged in hereinafter, graduated scale is fixed on cabinet body upper end；By water-bath long side arrangement is parallel to, camera guide rail and folder guide rail are arranged in same level for camera guide rail, folder guide rail and graduated scale；Fixed clip pedestal is fixed on folder guide rail side, and mobile folder pedestal is arranged on folder guide rail, and camera is arranged on camera guide rail, and camera is towards test specimen side.This bitumen ductility instrument can automatic discrimination asphalt test piece be broken moment, while termination test and recording corresponding ductility, improve test accuracy, also improve the intelligent level of test.
Description
Technical field
The utility model relates to a kind of bitumen ductility instrument based on video auxiliary, belong to the inspection of highway structure material bitumen ductility
Survey field.
Background technique
Pitch is the widely used pavement structure cementing material of highway construction field, it from different mineral materials in proportion
The bituminous pavement that different structure can be built up after cooperation, in highway construction field using extremely wide.Bitumen ductility refers to pitch
Extensibility, be evaluate pitch plasticity important indicator, ductility is bigger, shows that the plasticity of pitch is better.Bitumen ductility instrument is to use
In the experimental rig for measuring bitumen samples maximum plastic deformation when disconnecting.
Mainstream bitumen ductility instrument mainly by stretching device, temperature control equipment, display device and integrates currently on the market
Control device composition, instrument are typically provided with water bath with thermostatic control, and temperature is usually set to 25 DEG C of normal temperature, tests main stretching
Device is placed in water bath with thermostatic control, test carried out under steady temperature in water-bath, stretching device mainly by graduated scale, fixed clip,
Power motor composition.When using the ductility of bitumen ductility instrument inspection asphalt test piece, the asphalt test piece of designated shape, length is put into
It in water bath with thermostatic control, is fixed on corresponding folder, controls mobile folder according to constant speed (general 1~5cm/min) movement, until
Test specimen is pulled off, and records the length of test specimen fracture moment test specimen, to determine its ductility.During the test, when test is close
When termination condition, asphalt test piece can generally be drawn into superfine state.Generally there are two types of modes for the termination of test, first is that drawing
Test specimen state is observed by laboratory technician's whole process during stretching, manual termination is tested when test specimen is broken, and another kind is using Cont rol Method of Precise Force
Sensing device is learned, by judging that test specimen stress is less than the automatic termination test of certain value；Existing pitch is prolonged there is also some at present
The improved though of instrument is spent, but there is erroneous judgement to experimental condition and device condition in application, improved feasibility is poor.At present
There is a degree of defect in two kinds of test operations of existing bitumen ductility instrument, former manual termination mode needs laboratory technician
Whole continual focal attention observes test specimen drawing process, since bitumen ductility test has stringent determination condition, generally
Rate of extension generally requires 30~100min or even longer time in 1~5cm/min etc., from on-test to end, tests
Process takes a long time, to laboratory technician's energy be lost it is larger, on the other hand, test close to terminate when asphalt test piece stretching at compared with
Carefully, up to hair degree, eye-observation is easy to appear error, and can only be by observing above water-bath, and it is general that test specimen breaks moment
Positioned at test specimen midpoint, both sides hang downwards when breaking, and are generally aligned in the same plane with viewing angle, are easier when viewed from above
It judges by accident, causes test result not accurate enough, rigorous, and since water-bath needs to keep constant temperature, water-bath during the test
It needs to cover cover board, also there is certain interference to point of view；Latter is determined the mode that test terminates by mechanics sensing device,
Test specimen stress is very small when due to terminating close to test, and the mechanics sensing device price for incuding magnitude stress variation is very high
Expensive, although test accuracy can be improved, instrument economy is poor.Generally, there are also certain improvement for bitumen ductility instrument
Space.
Summary of the invention
The utility model combines deficiency existing for existing bitumen ductility instrument, proposes a kind of bitumen ductility based on video auxiliary
Instrument, the device with test specimen parallel plane by being arranged a removable camera shooting mobile with folder half speed in a water bath
Head, can automatic discrimination asphalt test piece be broken moment, while termination test and recording corresponding ductility, improve test accuracy,
Improve the intelligent level of test.
A kind of bitumen ductility instrument based on video auxiliary, including cabinet body, water bath with thermostatic control, water-bath cover board, mobile folder pedestal,
Fixed clip pedestal, folder traction electric machine, folder guide rail, camera traction electric machine, camera guide rail, graduated scale, camera, control
System and display device；Water bath with thermostatic control, control and display device are located in cabinet body, folder guide rail, camera guide rail, fixed clip bottom
Seat, mobile folder pedestal, camera, folder traction electric machine, camera traction electric machine are set in water bath with thermostatic control, are arranged in constant temperature
The water-bath water surface is hereinafter, graduated scale is fixed on cabinet body upper end；Camera guide rail, folder guide rail and graduated scale are long by water-bath is parallel to
Side arrangement, camera guide rail and folder guide rail are arranged in same level；Fixed clip pedestal is fixed on folder guide rail side,
Mobile folder pedestal is arranged on folder guide rail, and camera is arranged on camera guide rail, and camera is towards test specimen side.
The application method of the above-mentioned bitumen ductility instrument based on video auxiliary is as follows: mobile folder pedestal is horizontal along folder guide rail
Mobile, folder traction electric machine connects mobile folder pedestal, controls mobile folder base motions；Camera is arranged in camera guide rail
On, it is controlled along guide rail horizontal movement by camera traction electric machine, the direction of motion is parallel with mobile folder base motions direction,
Camera records the state change in test specimen drawing process towards test specimen side, and camera center is adjusted to pair when on-test
Quasi- test specimen middle position, folder traction electric machine is according to setting speed tethered sliding folder base motions, water-bath lid after on-test
Above water bath with thermostatic control, the stabilization of water temperature condition is tested with maintenance in on-test rear cover for plate；Control and display device are arranged in
On the outside of water bath with thermostatic control, control water bath with thermostatic control maintains constant temperature and controls the movement speed of two traction electric machines, control and display
The spectral discrimination test specimen that device is shot according to camera breaks moment, breaks moment termination test in test specimen and records test number
According to.
Further, camera traction electric machine draws cam movement according to the half of folder traction electric machine speed, makes
Camera observes the center of image always at midpoint of test specimen or so.
Asphalt test piece both ends are separately fixed at fixed clip and mobile folder according to test requirements document when the utility model is used
On part, fixed clip is fixed on fixed clip pedestal, mobile folder is fixed on mobile folder pedestal, device position is adjusted
It sets, camera is located at test specimen midpoint or so when making on-test, sets folder traction electric machine speed by control and display device
And camera traction electric machine speed, so that camera movement speed is equal to the half of mobile folder speed, passes through camera reality
When observe test specimen state, and by image transmitting to control and display device, by the computer module in device according to test specimen image
Whether automatic discrimination test specimen is broken, and stops test by each component of control device Control experiment when test specimen is broken, and record test
Data obtain asphalt test piece stretch indexe, and the utility model test data is mainly by control and display device according to on-test
It is obtained automatically with the experimental condition and state of termination.
The utility model has the beneficial effects that
The utility model proposes a kind of bitumen ductility instrument based on video auxiliary, compare existing bitumen ductility instrument, have
Beneficial effect has the following:
1, by video auxiliary device combination control device realize to bitumen ductility test in asphalt test piece break condition from
What dynamic differentiation and then triggering were tested terminates and obtains corresponding test data automatically, the automation compared with existing manual bitumen ductility instrument
Degree, intelligent level are higher；
2, asphalt test piece is in same level in video camera and water bath with thermostatic control in the utility model, compares existing one
Test accuracy is higher for the bitumen ductility instrument of a little vertical video observations, and main cause is test specimen breaking part two sides when test specimen is broken
The filament direction that hangs is vertical with camera direction of observation in the utility model, breaks moment and is easier to be captured by camera, and vertical
Since its camera observed bearing and breaking part the filament direction that hangs are located in the same face, breaking point exists the bitumen ductility instrument of observation
It is high that difficulty is captured in its image, and the bitumen ductility instrument of existing vertical observation its camera frame is located above water bath with thermostatic control, it is real
In order to maintain water bath with thermostatic control temperature to stablize in the test of border, cover board must be provided with above water-bath, usually glass or plastic material, hang down
It even is difficult to observe to greatly declining when observation through accuracy of observation of the water-bath cover board to test specimen state, and the utility model mentions
Built-in horizontal observation camera out overcomes the problem well；
3, the utility model proposes cameras can be mobile according to the half speed of test specimen movement speed, can make camera
Position is always positioned at test specimen midpoint or so, and in bitumen ductility test, breaking point appears in tensile test specimen substantially
Point position, image capture device is often all fixed on a certain position in previous automatic observation bitumen ductility instrument, and bitumen ductility
Its tensile elongation is tested usually at 1 meter or more, is just needed in the case where fixed imaging device using wide-angle camera and needs
Camera is arranged in other than certain distance, so that experimental accuracy is declined to a great extent in this way, and the utility model proposes moveable
Camera can closely track test specimen breaking point position, and imaging is apparent, and test accuracy is higher.
Detailed description of the invention
The top view of Fig. 1 utility model device.
Specific embodiment
The utility model proposes a kind of bitumen ductility instrument based on video auxiliary, which be may be implemented to drip
The automatic judgement of green test specimen fracture moment, improves bitumen ductility test accuracy.
Fig. 1 is the top view of utility model device, and wherein component 1 is folder traction electric machine, component 2 is mobile folder bottom
Seat, component 3 are folder guide rail, component 4 is graduated scale, component 5 is fixed clip pedestal, component 6 is water-bath cover board, component 7 is
Control with display device, component 8 be cabinet body, component 9 is water bath with thermostatic control, component 10 is camera guide rail, component 11 be camera,
Component 12 is camera traction electric machine.
There are water bath with thermostatic control 9, control and display device 7 in cabinet body 8, water bath with thermostatic control sink length can as needed voluntarily
It sets, in the utility model by taking Rectangular Water Trough as an example.Component 1, component 2, component 3, component 5, component 10, component 11, component 12
It is all located in same level, and in the water bath with thermostatic control water surface hereinafter, depth is determined according to test requirements document, this application is according to the water surface
Illustrate for following 50cm, component 1, component 4 and component 10 and the sink long side of water bath with thermostatic control are parallel wherein, and component 4 is fixed on
Cabinet body upper end is fixed on water bath with thermostatic control bottom.Component 6 is water bath with thermostatic control cover board, and material can be glass or plastics, reality
For several piece, quantity should be able to all cover water bath with thermostatic control water surface range.The major function of control and display device 7 is to realize perseverance
Fluid temperature problem maintains set temperature in tepidarium, controls folder traction electric machine and camera traction electric machine according to specified speed
It spends tethered sliding folder pedestal 2 and camera 11 is mobile, while whether being broken simultaneously according to the spectral discrimination test specimen of thecamera head
Record and show corresponding test data.
Asphalt test piece both ends were separately fixed on fixed clip pedestal 5 and mobile folder pedestal 2 before on-test, and are adjusted
The position of whole camera 11 makes the video imaging midpoint of camera 11 be located at test specimen midpoint.It is controlling and is being inputted in display device 7
Relevant parameter, and test speed is set, wherein camera speed is the half of mobile folder speed, starts to test, 1 and 12 difference
Mobile according to setting speed tethered sliding folder and camera, camera real-time capture test specimen midpoint image is simultaneously transferred to control
System and display device 7, when test specimen is pulled off, camera captures image, determines that test reaches eventually with display device by control
Only condition, and record corresponding test data.
Claims (1)
1. a kind of bitumen ductility instrument based on video auxiliary, it is characterised in that: including cabinet body, water bath with thermostatic control, water-bath cover board, movement
Folder pedestal, fixed clip pedestal, folder traction electric machine, folder guide rail, camera traction electric machine, camera guide rail, graduated scale,
Camera, control and display device；Water bath with thermostatic control, control and display device are located in cabinet body, folder guide rail, camera guide rail,
Fixed clip pedestal, mobile folder pedestal, camera, folder traction electric machine, camera traction electric machine are set in water bath with thermostatic control,
The water bath with thermostatic control water surface is arranged in hereinafter, graduated scale is fixed on cabinet body upper end；Camera guide rail, folder guide rail and graduated scale are pressed flat
Row arranges that camera guide rail and folder guide rail are arranged in same level in water-bath long side；Fixed clip pedestal is fixed on folder
Part guide rail side, mobile folder pedestal are arranged on folder guide rail, and camera is arranged on camera guide rail, and camera is towards examination
Part side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200671.9U CN209470986U (en) | 2018-12-26 | 2018-12-26 | A kind of bitumen ductility instrument based on video auxiliary |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200671.9U CN209470986U (en) | 2018-12-26 | 2018-12-26 | A kind of bitumen ductility instrument based on video auxiliary |
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| Publication Number | Publication Date |
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| CN209470986U true CN209470986U (en) | 2019-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540703A (en) * | 2018-12-26 | 2019-03-29 | 交通运输部公路科学研究所 | A kind of bitumen ductility instrument based on video auxiliary |
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2018
- 2018-12-26 CN CN201822200671.9U patent/CN209470986U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540703A (en) * | 2018-12-26 | 2019-03-29 | 交通运输部公路科学研究所 | A kind of bitumen ductility instrument based on video auxiliary |
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