CN103018135B - Marshall tester - Google Patents
Marshall tester Download PDFInfo
- Publication number
- CN103018135B CN103018135B CN201210514539.XA CN201210514539A CN103018135B CN 103018135 B CN103018135 B CN 103018135B CN 201210514539 A CN201210514539 A CN 201210514539A CN 103018135 B CN103018135 B CN 103018135B
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- China
- Prior art keywords
- gasket
- piece fixture
- marshall
- holder
- piece
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Abstract
The invention belongs to technical field of quality detection, are related to tester, more particularly, to a kind of Marshall tester.It solves the problems such as existing Marshall tester dismounting maintenance is inconvenient, and testing result is inaccurate.This Marshall tester, including holder, it is equipped with actuating unit in the bottom of holder, it is connected with piece fixture on the actuating unit, the holder is equipped with hold-down mechanism, the piece fixture is equipped with several displacement sensors, the hold-down mechanism is equipped with pressure sensor, the displacement sensor and pressure sensor is connect with data storage device, the Upper gasket and lower gasket that can be coincide with piece fixture are equipped on the inside of the piece fixture, the Upper gasket is connected with lower gasket by detachable structure.The present invention has reasonable design, simple in structure, of low cost, and dismounting maintenance is convenient, the advantages that capable of greatly improving the science and accuracy of pitch mixing material Marshall stability and flow valuve detection.
Description
Technical field
The invention belongs to technical field of quality detection, it is related to, for detecting the tester of pitch mixing material, especially relating to
And a kind of Marshall tester.
Background technology
In pitch mixing material quality testing, Marshall stability and flow valuve experiment are one and predominantly detect content,
In its detection process, the Marshall punching of certain time is needed pre-production and placed according to JTJ/T052-2000 inspection procedures
It hits real test specimen and is placed in water bath with thermostatic control together with bulky fixture and conserve certain time, it is in place and install to take out fixture installation
Displacement sensor further takes out first test specimen in fixture, and booting determines the Marshall stability and flow valuve of the test specimen.
Marshall stability is determined it is required that being fetched into from test specimen and flow valuve must not exceed 30 seconds, then takes out first test specimen installation
In fixture, it is measured, and so on, complete the measurement of one group of remaining test specimen.
During above-mentioned experiment, firstly, since should install test specimen installs displacement sensor again, in addition must reserve
The height gap of 30mm or so rises the reserved 30mm of closure and just needs more than ten seconds to facilitate installation after startup detection, slightly not
Paying attention to will time-out；Secondly, one group of test specimen has 4-6, and fixture inner surface temperature can decline at any time, to influence below
Several measurement results.It the synthermal maintenance of regulation fixture and is fetched into from test specimen in inspection procedure and determines Marshall stability
And flow valuve must not exceed 30 seconds be since testing result is very sensitive to the temperature of test specimen, so experimental condition is stringenter.And
Said before 2 points certainly will have an adverse effect to testing result.
In order to improve problem of the existing technology, people have carried out long-term exploration, it is proposed that various solutions
Scheme.For example, Chinese patent literature discloses a kind of Full-automatic intelligent temperature-controlled marshall stability test instrument [application number：
201020668319.9], including an automatic Marshall tester, it includes that loading system, device for measuring force and flow valuve measure dress
It sets, further includes Marshall tester control device and automatic temp controller；Automatic temp controller includes low-temperature metal Electric radiant Heating Film, adds
Heater circuit and temperature sensor；The method that low-temperature metal heating film is pasted is fixed on the surface of upper push-down head；Low-temperature metal electricity
Hotting mask is connected by heater circuit with automatic Marshall tester control device；Temperature sensor passes through temperature sensor line
It is connected with automatic Marshall tester control device.
Said program improves the prior art to a certain extent, so that pressure head and test specimen temperature is begun by automatic temperature control circuit
It can be maintained at eventually in the range of regulation regulation, reduce influence of the temperature to measurement result, simplify test operation.On however
The defects of scheme of stating still remains clamping column and needs to dismount maintenance, and testing result is inaccurate.
Invention content
Regarding the issue above, the present invention provides a kind of reasonable design, simple in structure, of low cost, dismounting is supported
Shield is convenient, can greatly improve the Marshall of pitch mixing material Marshall stability and the science and accuracy of flow valuve detection
Tester.
In order to achieve the above objectives, present invention employs following technical proposals：This Marshall tester, including holder are being propped up
The bottom of frame is equipped with actuating unit, and piece fixture is connected on the actuating unit, and the holder is equipped with hold-down mechanism,
The piece fixture is equipped with several displacement sensors, and the hold-down mechanism is equipped with pressure sensor, the displacement
Sensor and pressure sensor are connect with data storage device, and being equipped on the inside of the piece fixture can coincide with piece fixture
Upper gasket and lower gasket, the Upper gasket connected with lower gasket by detachable structure.
The setting of Upper gasket and lower gasket so that, only need to be by upper pad it is not necessary that piece fixture is removed maintenance when being tested
Piece and lower gasket conserve together with test specimen, and another installation can be carried out testing in place so that dismounting, cleaning and maintenance are very
It is convenient；It is furnished with Upper gasket and lower gasket on each test specimen, testing result can be led to not to avoid because test specimen contact surface cools down
Accurate situation occurs.
Further, in above-mentioned Marshall tester, the detachable structure includes being located at Upper gasket and underlay
The screw hole and guide rod of on piece, the Upper gasket and lower gasket are connected by bolt across screw hole.The mode of detachable structure has
Conducive to the dismounting and maintenance of test specimen, detachable structure here can need to take the replacement of a variety of various kinds to connect according to practical connection
Connect mode.
Further, in above-mentioned Marshall tester, the screw hole and guide rod are two, and respectively symmetrically
It is arranged on Upper gasket and lower gasket.Here the number and set-up mode of screw hole and guide rod can be selected according to actual needs
It selects.
Preferably, in above-mentioned Marshall tester, gap is equipped between the Upper gasket and lower gasket.Gap
Setting facilitate the installation of test specimen.
In above-mentioned Marshall tester, the piece fixture includes the push-down head being connected on actuating unit,
Push-down head, which is equipped with, to coordinate the seaming chuck for clamping test specimen with the push-down head.Similarly, the structure shape of piece fixture here
Formula and the combining form for being not limited to seaming chuck and push-down head.
In above-mentioned Marshall tester, the actuating unit includes the driving structure for being located at frame bottom, described
Driving structure on be connected with the mandril that piece fixture can be jacked up.
As a kind of technical solution more optimized, in above-mentioned Marshall tester, the driving structure includes
Hydraulic cylinder.
In above-mentioned Marshall tester, the hold-down mechanism includes the cross bar being located on holder, the pressure
Sensor setting is equipped with pressure bulb in cross bar lower end, in pressure sensor lower end, and energy and pressure ball are equipped on piece fixture
The ball seat of head cooperation.
In above-mentioned Marshall tester, the thickness of the Upper gasket and lower gasket is times between 8mm-12mm
Meaning numerical value.
In above-mentioned Marshall tester, the width of the Upper gasket and lower gasket is identical as piece fixture, and long
Length of the degree less than piece fixture.
Compared with prior art, it is the advantages of this Marshall tester：Reasonable design, it is simple in structure, it is of low cost,
It is conserved without removing piece fixture, Upper gasket, lower gasket need to only be conserved together with test specimen at the trial so that dismounting is supported
Shield is convenient, and low with the current price temperature of piece fixture and test specimen contact surface substantially increases pitch mixing material Marshall and stablizes
Degree and the science and accuracy of flow valuve detection.
Description of the drawings
Fig. 1 is main structure diagram provided by the invention.
Fig. 2 is overlooking structure diagram provided by the invention.
Fig. 3 is the enlarged structure sectional view of piece fixture provided by the invention.
In figure, holder 1, actuating unit 2, driving structure 21, mandril 22, piece fixture 3, seaming chuck 31, push-down head 32, pressure
Tight mechanism 4, cross bar 41, pressure bulb 42, ball seat 43, displacement sensor 5, pressure sensor 6, data storage device 7, Upper gasket
8, lower gasket 9, screw hole 10, guide rod 11.
Specific implementation mode
As shown in Figs. 1-3, this Marshall tester, including holder 1 are equipped with actuating unit 2 in the bottom of holder 1,
It is connected with piece fixture 3 on actuating unit 2, hold-down mechanism 4 is equipped on holder 1, several displacements are equipped on piece fixture 3 and are passed
Sensor 5, is equipped with pressure sensor 6 on hold-down mechanism 4, and above-mentioned displacement sensor 5 and pressure sensor 6 are stored with data
Device 7 connects, and is equipped with the Upper gasket 8 that can be coincide with piece fixture 3 and lower gasket 9 in 3 inside of piece fixture, Upper gasket 8 is under
Gasket 9 is connected by detachable structure.The setting of Upper gasket 8 and lower gasket 9 so that be not necessarily to piece fixture 3 when being tested
Maintenance is removed, Upper gasket 8 and lower gasket 9 need to only be conserved together with test specimen, another installation can be carried out testing in place, make
It must dismount, clean and conserve and is very convenient；It is furnished with Upper gasket 8 and lower gasket 9 on each test specimen, can be contacted to avoid because of test specimen
The situation that face cools down and causes testing result inaccurate occurs.
As a kind of technical solution more optimized, in the present embodiment, above-mentioned detachable structure includes being located at pad
Screw hole 10 on piece 8 and lower gasket 9 and guide rod 11, Upper gasket 8 and lower gasket 9 are connected by bolt across screw hole 10, screw hole 10
It is two with guide rod 11 and is symmetrically arranged on Upper gasket 8 and lower gasket 9, is equipped between Upper gasket 8 and lower gasket 9
Gap.The mode of detachable structure is conducive to the dismounting and maintenance of test specimen, and detachable structure here can be according to practical connection
Need to take the replacement connection type of a variety of various kinds, the number and set-up mode of screw hole 10 and guide rod 11 can also be according to practical need
It is selected, the setting in gap can facilitate the installation of test specimen.
Piece fixture 3 includes the push-down head 32 being connected on actuating unit 2, and being equipped on push-down head 32 can be with the push-down head
The seaming chuck 31 that 32 cooperations clamp test specimen, actuating unit 2 includes the driving structure 21 for being located at 1 bottom of holder, in driving structure
The mandril 22 that piece fixture 3 can be jacked up is connected on 21, the driving structure 21 in the present embodiment includes hydraulic cylinder, hold-down mechanism
4 include the cross bar 41 being located on holder 1, and above-mentioned pressure sensor 5 is arranged in 41 lower end of cross bar, in 5 lower end of pressure sensor
Equipped with pressure bulb 42, the ball seat 43 that can coordinate with pressure bulb 42 is equipped on piece fixture 3, Upper gasket 8 and lower gasket 9
Thickness is any number between 8mm-12mm, and the width of Upper gasket 8 and lower gasket 9 is identical as piece fixture 3, and length is small
In the length of piece fixture 3.
The specific working mode of the present invention is simply described below：
Test specimen will be put well among Upper gasket 8 and lower gasket 9, be then attached with bolt, later by Upper gasket 8 and underlay
Piece 9, which is put into water bath with thermostatic control, to be conserved；When experiment, Upper gasket 8 and lower gasket 9 are put between seaming chuck 31 and push-down head 32,
It can quickly be tested；It tests power and comes from actuating unit 2, driving structure 21 is up carried by mandril 22 from push-down head 32
For a vertical power, piece fixture 3 is jacked up and is compressed；The displacement of seaming chuck 31 and push-down head 32 is passed by displacement sensor 5
Defeated to arrive data storage device 7, pressure value is transferred to data storage device 7, pattern data storage device 7 by pressure sensor 6
In shift value and pressure value can calculate the Marshall stability and flow valuve of pitch mixing material.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although holder 1, actuating unit 2, driving structure 21, mandril 22, piece fixture 3, upper pressure is used more herein
First 31, push-down head 32, hold-down mechanism 4, cross bar 41, pressure bulb 42, ball seat 43, displacement sensor 5, pressure sensor 6, data
The terms such as storage device 7, Upper gasket 8, lower gasket 9, screw hole 10, guide rod 11, but it does not preclude the possibility of using other terms.
The use of these items is only for more easily describing and explaining the essence of the present invention, it is additional to be construed as any type
Limitation all disagreed with spirit of that invention.
Claims (6)
1. a kind of Marshall tester, including holder (1) are equipped with actuating unit (2), the power in the bottom of holder (1)
It is connected with piece fixture (3) in mechanism (2), the holder (1) is equipped with hold-down mechanism (4), on the piece fixture (3)
Equipped with several displacement sensors (5), the hold-down mechanism (4) is equipped with pressure sensor (6), the displacement sensor
(5) it is connect with data storage device (7) with pressure sensor (6), which is characterized in that set on the inside of the piece fixture (3)
There are the Upper gasket (8) that can be coincide with piece fixture (3) and lower gasket (9), is set between the Upper gasket (8) and lower gasket (9)
There is a gap, the thickness of the Upper gasket (8) and lower gasket (9) is any number between 8mm ~ 12mm, the upper pad
The width of piece (8) and lower gasket (9) is identical as piece fixture (3), and length is less than the length of piece fixture (3), and described is upper
Gasket (8) is connected with lower gasket (9) by detachable structure, and the detachable structure includes being located at Upper gasket (8) and underlay
Screw hole (10) on piece (9) and guide rod (11), the Upper gasket (8) and lower gasket (9) are connected by bolt across screw hole (10)
It connects.
2. Marshall tester according to claim 1, which is characterized in that the screw hole (10) and guide rod (11) be
Two, and be symmetrically arranged on Upper gasket (8) and lower gasket (9).
3. Marshall tester according to claim 1 or 2, which is characterized in that the piece fixture (3) includes connection
Push-down head (32) on actuating unit (2) is equipped on push-down head (32) and can clamp test specimen with the push-down head (32) cooperation
Seaming chuck (31).
4. Marshall tester according to claim 1 or 2, which is characterized in that the actuating unit (2) includes being located at
The driving structure (21) of holder (1) bottom is connected with the mandril that can jack up piece fixture (3) in the driving structure (21)
(22)。
5. Marshall tester according to claim 4, which is characterized in that the driving structure (21) includes hydraulic pressure
Cylinder.
6. Marshall tester according to claim 1 or 2, which is characterized in that the hold-down mechanism (4) includes being located at
Cross bar (41) on holder (1), the pressure sensor (5) are arranged in cross bar (41) lower end, in pressure sensor (5) lower end
Equipped with pressure bulb (42), the ball seat (43) that can coordinate with pressure bulb (42) is equipped on piece fixture (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514539.XA CN103018135B (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514539.XA CN103018135B (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103018135A CN103018135A (en) | 2013-04-03 |
| CN103018135B true CN103018135B (en) | 2018-09-18 |
Family
ID=47966989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210514539.XA Expired - Fee Related CN103018135B (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103018135B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CO7130281A1 (en) * | 2014-09-30 | 2014-12-01 | Univ De La Salle | Device and method for determining uncontrolled compressive strength in samples of rocks or other disc-shaped materials and subjected to diametral loading |
| CN106286515B (en) * | 2016-08-03 | 2018-10-26 | 山西省交通科学研究院 | The preparation facilities and method of sample used when surveying asphalt sensing heating volume change |
| CN114166640A (en) * | 2021-12-02 | 2022-03-11 | 深圳市宏升交通科技有限公司 | Experimental equipment for asphalt detection and detection method |
| CN114235574A (en) * | 2021-12-10 | 2022-03-25 | 中路交科检测技术有限公司 | Horizontal loading asphalt mixture stability tester and test method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837562U (en) * | 2010-11-08 | 2011-05-18 | 吴建国 | Asphalt mixture stability testing instrument |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2728181C3 (en) * | 1977-06-23 | 1980-01-31 | Karl Prof. Dipl.-Ing. 6101 Seeheim Listner | Device for the production of test specimens from non-pourable bituminous masses |
| DK172457B1 (en) * | 1995-12-27 | 1998-08-24 | Niels Ole Fruensgaard | Method and apparatus for measuring the shear strength of asphalt materials, especially in conjunction with the Marshall device |
| CN201945506U (en) * | 2010-12-20 | 2011-08-24 | 长安大学 | Full-automatic intelligent temperature-controlled marshall stability test instrument |
| CN203011794U (en) * | 2012-12-05 | 2013-06-19 | 无锡市市政工程质量检测中心 | Marshall tester |
-
2012
- 2012-12-05 CN CN201210514539.XA patent/CN103018135B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837562U (en) * | 2010-11-08 | 2011-05-18 | 吴建国 | Asphalt mixture stability testing instrument |
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| Publication number | Publication date |
|---|---|
| CN103018135A (en) | 2013-04-03 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180918 Termination date: 20201205 |