CN203011794U - Marshall tester - Google Patents
Marshall tester Download PDFInfo
- Publication number
- CN203011794U CN203011794U CN 201220662878 CN201220662878U CN203011794U CN 203011794 U CN203011794 U CN 203011794U CN 201220662878 CN201220662878 CN 201220662878 CN 201220662878 U CN201220662878 U CN 201220662878U CN 203011794 U CN203011794 U CN 203011794U
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- gasket
- test instrument
- piece fixture
- marshall
- upper gasket
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Abstract
The utility model belong to the technical field of quality detection, relates to a tester and in particular relates to an Marshall tester which is used for solving the problems that the existing Marshall tester is inconvenient to dismount and maintain and inaccurate in tested result. The Marshall tester comprises a bracket, wherein a power mechanism is arranged at the bottom of the bracket; a test piece clamp is connected to the power mechanism; a pressing mechanism is arranged on the bracket; a plurality of displacement sensors are arranged on the test piece clamp; a pressure sensor is arranged on the pressing mechanism; the displacement sensor and the pressure sensor are connected with a data storage; an upper gasket and a lower gasket are arranged at the inner side of the test piece clamp; the upper gasket and the lower gasket are coincided with the test piece clamp; and the upper gasket and the lower gasket are connected by a detachable structure. The Marshall tester has the advantages of reasonable design, simple structure and low cost, and is convenient to dismount and maintain, capable of greatly improving the scientificalness and the accuracy of asphalt mixing material and Marshall stability and flow value detection.
Description
Technical field
The utility model belongs to technical field of quality detection, relates to the test instrument for detection of the pitch composite material, especially relates to a kind of Marshall Test instrument.
Background technology
In the quality testing of pitch composite material, Marshall stability and flow valuve test are main Detection of contents, in its testing process, the Marshall that needs to make in advance and to place certain hour according to the JTJ/T052-2000 inspection procedure impacts real test specimen and is placed on maintenance certain hour in water bath with thermostatic control together with the fixture of heaviness, take out the fixture installation in position and install displacement transducer, take out first test specimen again and be arranged in fixture, start determines Marshall stability and the flow valuve of this test specimen.Requirement is fetched into from test specimen and determines Marshall stability and flow valuve must not surpass for 30 seconds, then takes out first test specimen and is arranged in fixture, measure, the like, complete the mensuration of one group of all the other test specimen.
In above-mentioned process of the test, at first, due to test specimen installation position displacement sensor again should be installed, add that the height gap about the necessary 30mm of reservation is installed with convenient, and after start detection, the 30mm of the closed reservation of rising just needs tens seconds, slightly not noting will be overtime; Secondly, one group of test specimen has 4-6, and fixture inner surface temperature can descend in time, thereby affects the several measurement result in back.The synthermal maintenance of regulation fixture and be fetched into from test specimen and determine Marshall stability and flow valuve must not to surpass for 30 seconds be because testing result is very sensitive to the temperature of test specimen, so test condition is stricter in inspection procedure.And said 2 of front certainly will have a negative impact to testing result.
The problem that exists in order to improve prior art, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of Full-automatic intelligent temperature-controlled marshall stability test instrument [application number: 201020668319.9], comprise an automatic Marshall test instrument, it comprises loading system, device for measuring force and flow valuve measurement mechanism, also comprises Marshall Test instrument control device and automatic temp controller; Automatic temp controller comprises low-temperature metal Electric radiant Heating Film, heater circuit and temperature sensor; The low-temperature metal heating film is fixed on the surface of upper push-down head with the method for pasting; The low-temperature metal Electric radiant Heating Film is connected with automatic Marshall test instrument control device by heater circuit; Temperature sensor is connected with automatic Marshall test instrument control device by the temperature sensor line.
Such scheme has improved prior art to a certain extent, by automatic temperature control circuit, pressure head and test specimen temperature can be remained in the scope of rules regulation all the time, has reduced the impact of temperature on measurement result, has simplified test operation.The defectives such as yet such scheme still exists the folder post to need the dismounting maintenance, and testing result is inaccurate.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of reasonable in design, simple in structure, with low cost, and the dismounting maintenance is convenient, can greatly improve the science of pitch composite material Marshall stability and flow valuve detection and the Marshall Test instrument of accuracy.
for achieving the above object, the utility model has adopted following technical proposal: this Marshall Test instrument, comprise support, bottom at support is provided with actuating unit, be connected with piece fixture on described actuating unit, described support is provided with hold-down mechanism, described piece fixture is provided with some displacement transducers, described hold-down mechanism is provided with pressure transducer, described displacement transducer and pressure transducer all are connected with data storage device, described piece fixture inboard is provided with Upper gasket and the lower gasket that can coincide with piece fixture, described Upper gasket connects by demountable structure with lower gasket.
The setting of Upper gasket and lower gasket makes to need not when testing piece fixture is pulled down maintenance, only need Upper gasket and lower gasket with test specimen maintenance together, then installation in position just can be tested together, makes dismounting, cleaning and maintenance very convenient; Be furnished with Upper gasket and lower gasket on each test specimen, can avoid occuring because the cooling of test specimen surface of contact causes the inaccurate situation of testing result.
Further, in above-mentioned Marshall Test instrument, described demountable structure comprises screw and the guide rod that is located on Upper gasket and lower gasket, and described Upper gasket passes screw with lower gasket by bolt and connects.The mode of demountable structure is conducive to dismounting and the maintenance of test specimen, and the demountable structure here can connect the alternative connected mode that needs are taked multiple various kinds according to reality.
Further, in above-mentioned Marshall Test instrument, described screw and guide rod are two, and are symmetricly set on respectively on Upper gasket and lower gasket.The screw here and the number of guide rod and set-up mode can be selected according to actual needs.
As preferably, in above-mentioned Marshall Test instrument, be provided with the gap between described Upper gasket and lower gasket.The gap the installation that facilitates test specimen is set.
In above-mentioned Marshall Test instrument, described piece fixture comprises the push-down head that is connected on actuating unit, is provided with to coordinate with this push-down head the seaming chuck that test specimen is clamped on push-down head.Similarly, here piece fixture version and be not limited to seaming chuck and the array configuration of push-down head.
In above-mentioned Marshall Test instrument, described actuating unit comprises the drives structure that is located at frame bottom, and being connected with on described drives structure can be with the push rod of piece fixture jack-up.
As a kind of technical scheme of comparatively optimizing, in above-mentioned Marshall Test instrument, described drives structure comprises hydraulic cylinder.
In above-mentioned Marshall Test instrument, described hold-down mechanism comprises the cross bar that is located on support, and described pressure transducer is arranged on the cross bar lower end, is provided with the pressure bulb in the pressure transducer lower end, is provided with the ball seat that can coordinate with the pressure bulb on piece fixture.
In above-mentioned Marshall Test instrument, the thickness of described Upper gasket and lower gasket is any number between 8mm-12mm.
In above-mentioned Marshall Test instrument, the width of described Upper gasket and lower gasket is identical with piece fixture, and length is less than the length of piece fixture.
Compared with prior art, the advantage of this Marshall Test instrument is: reasonable in design, simple in structure, with low cost, need not at the trial to pull down piece fixture and carry out maintenance, only need with Upper gasket, lower gasket with test specimen maintenance together, make the dismounting maintenance convenient, with current price low the temperature of piece fixture and test specimen surface of contact, greatly improved science and accuracy that pitch composite material Marshall stability and flow valuve detect.
Description of drawings
Fig. 1 is the main TV structure schematic diagram that the utility model provides.
Fig. 2 is the plan structure schematic diagram that the utility model provides.
Fig. 3 is the structure for amplifying cut-open view of the piece fixture that provides of the utility model.
In figure, support 1, actuating unit 2, drives structure 21, push rod 22, piece fixture 3, seaming chuck 31, push-down head 32, hold-down mechanism 4, cross bar 41, pressure bulb 42, ball seat 43, displacement transducer 5, pressure transducer 6, data storage device 7, Upper gasket 8, lower gasket 9, screw 10, guide rod 11.
Embodiment
As Figure 1-3, this Marshall Test instrument, comprise support 1, be provided with actuating unit 2 in the bottom of support 1, actuating unit 2 on be connected with piece fixture 3, be provided with hold-down mechanism 4 on support 1, be provided with some displacement transducers 5 on piece fixture 3, be provided with pressure transducer 6 on hold-down mechanism 4, above-mentioned displacement transducer 5 is connected with pressure transducer and all is connected with data storage device 7, be provided with Upper gasket 8 and the lower gasket 9 that can coincide with piece fixture 3 in piece fixture 3 inboards, Upper gasket 8 is connected with lower gasket and is connected by demountable structure.The setting of Upper gasket 8 and lower gasket 9 makes to need not when testing piece fixture 3 is pulled down maintenance, only need Upper gasket 8 and lower gasket 9 with test specimen maintenance together, then installation in position just can be tested together, makes dismounting, cleaning and maintenance very convenient; Be furnished with Upper gasket 8 and lower gasket 9 on each test specimen, can avoid occuring because the cooling of test specimen surface of contact causes the inaccurate situation of testing result.
As a kind of technical scheme of comparatively optimizing, in the present embodiment, above-mentioned demountable structure comprises screw 10 and the guide rod 11 that is located on Upper gasket 8 and lower gasket 9, Upper gasket 8 is connected with lower gasket and is passed screw 10 by bolt and connect, screw 10 and guide rod 11 be two and be symmetricly set on respectively Upper gasket 8 and lower gasket 9 on, be provided with the gap between Upper gasket 8 and lower gasket 9.The mode of demountable structure is conducive to dismounting and the maintenance of test specimen, the demountable structure here can connect the alternative connected mode that needs are taked multiple various kinds according to reality, the number of screw 10 and guide rod 11 and set-up mode also can be selected according to actual needs, and the setting in gap can facilitate the installation of test specimen.
piece fixture 3 comprises the push-down head 32 that is connected on actuating unit 2, be provided with on push-down head 32 and can coordinate with this push-down head 32 seaming chuck 31 that test specimen is clamped, actuating unit 2 comprises the drives structure 21 that is located at support 1 bottom, being connected with on drives structure 21 can be with the push rod 22 of piece fixture 3 jack-up, drives structure 21 in the present embodiment comprises hydraulic cylinder, hold-down mechanism 4 comprises the cross bar 41 that is located on support 1, above-mentioned pressure transducer 5 is arranged on cross bar 41 lower ends, be provided with pressure bulb 42 in pressure transducer 5 lower ends, be provided with the ball seat 43 that can coordinate with pressure bulb 42 on piece fixture 3, the thickness of Upper gasket 8 and lower gasket 9 is any number between 8mm-12mm, the width of Upper gasket 8 and lower gasket 9 is identical with piece fixture 3, and length is less than the length of piece fixture 3.
Specific works mode of the present utility model simply is described below:
With putting test specimen well in the middle of Upper gasket 8 and lower gasket 9, then connect with bolt, afterwards Upper gasket 8 and lower gasket 9 are put into maintenance in water bath with thermostatic control; During test, Upper gasket 8 and lower gasket 9 are put between seaming chuck 31 and push-down head 32, can be tested fast; Test power is from actuating unit 2, and drives structure 21 up provides a vertical power by push rod 22 from push-down head 32, and piece fixture 3 jack-up are compressed; The displacement of seaming chuck 31 and push-down head 32 is transferred to data storage device 7 by displacement transducer 5, force value is transferred to data storage device 7 by pressure transducer 6, and the shift value in general layout data storage device 7 and force value can calculate Marshall stability and the flow valuve of pitch composite material.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as support 1, actuating unit 2, drives structure 21, push rod 22, piece fixture 3, seaming chuck 31, push-down head 32, hold-down mechanism 4, cross bar 41, pressure bulb 42, ball seat 43, displacement transducer 5, pressure transducer 6, data storage device 7, Upper gasket 8, lower gasket 9, screw 10, guide rod 11, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model, and they are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. Marshall Test instrument, comprise support (1), be provided with actuating unit (2) in the bottom of support (1), be connected with piece fixture (3) on described actuating unit (2), described support (1) is provided with hold-down mechanism (4), described piece fixture (3) is provided with some displacement transducers (5), described hold-down mechanism (4) is provided with pressure transducer (6), described displacement transducer (5) is connected 6 with pressure transducer) all be connected with data storage device (7), it is characterized in that, described piece fixture (3) inboard is provided with Upper gasket (8) and the lower gasket (9) that can coincide with piece fixture (3), described Upper gasket (8) is connected 9 with lower gasket) connect by demountable structure.
2. Marshall Test instrument according to claim 1, it is characterized in that, described demountable structure comprises screw (10) and the guide rod (11) that is located on Upper gasket (8) and lower gasket (9), and described Upper gasket (8) is connected 9 with lower gasket) pass screw (10) connection by bolt.
3. Marshall Test instrument according to claim 2, is characterized in that, described screw (10) and guide rod (11) are two, and be symmetricly set on respectively on Upper gasket (8) and lower gasket (9).
4. Marshall Test instrument according to claim 3, is characterized in that, is provided with the gap between described Upper gasket (8) and lower gasket (9).
5. according to claim 1 and 2 or 3 or 4 described Marshall Test instrument, it is characterized in that, described piece fixture (3) comprises the push-down head (32) that is connected on actuating unit (2), is provided with to coordinate with this push-down head (32) seaming chuck (31) that test specimen is clamped on push-down head (32).
6. according to claim 1 and 2 or 3 or 4 described Marshall Test instrument, it is characterized in that, described actuating unit (2) comprises the drives structure (21) that is located at support (1) bottom, and being connected with on described drives structure (21) can be with the push rod (22) of piece fixture (3) jack-up.
7. Marshall Test instrument according to claim 6, is characterized in that, described drives structure (21) comprises hydraulic cylinder.
8. according to claim 1 and 2 or 3 or 4 described Marshall Test instrument, it is characterized in that, described hold-down mechanism (4) comprises the cross bar (41) that is located on support (1), described pressure transducer (5) is arranged on cross bar (41) lower end, be provided with pressure bulb (42) in pressure transducer (5) lower end, be provided with the ball seat (43) that can coordinate with pressure bulb (42) on piece fixture (3).
9. according to claim 1 and 2 or 3 or 4 described Marshall Test instrument, is characterized in that, the thickness of described Upper gasket (8) and lower gasket (9) is any number between 8mm-12mm.
10. according to claim 1 and 2 or 3 or 4 described Marshall Test instrument, is characterized in that, the width of described Upper gasket (8) and lower gasket (9) is identical with piece fixture (3), and length is less than the length of piece fixture (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662878 CN203011794U (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662878 CN203011794U (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011794U true CN203011794U (en) | 2013-06-19 |
Family
ID=48603377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662878 Expired - Fee Related CN203011794U (en) | 2012-12-05 | 2012-12-05 | Marshall tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018135A (en) * | 2012-12-05 | 2013-04-03 | 无锡市市政工程质量检测中心 | Marshall tester |
-
2012
- 2012-12-05 CN CN 201220662878 patent/CN203011794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018135A (en) * | 2012-12-05 | 2013-04-03 | 无锡市市政工程质量检测中心 | Marshall tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |