CN207379412U - A kind of experimental rig for being used to measure height of Marshall specimen and temperature - Google Patents
A kind of experimental rig for being used to measure height of Marshall specimen and temperature Download PDFInfo
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- CN207379412U CN207379412U CN201721140039.9U CN201721140039U CN207379412U CN 207379412 U CN207379412 U CN 207379412U CN 201721140039 U CN201721140039 U CN 201721140039U CN 207379412 U CN207379412 U CN 207379412U
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- temperature
- height
- measuring staff
- experimental rig
- engine base
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Abstract
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, including engine base, column, extension sleeve, telescope support, measuring staff and displacement sensor, is characterized in that：Measuring staff is from top to bottom sequentially passed through in displacement sensor, fixator setting, and measuring staff is into vertical state；The test piece base for placing marshal piece is fixed with below measuring staff, multiple temperature sensors is provided in test piece base, leveling spiral is provided on the lower surface of engine base.The experimental rig of the utility model can realize temperature survey, acquired height, temperature value are more accurate, it can be achieved that multimetering to height of Marshall specimen by the temperature sensor in test piece base；Have the characteristics that simple and reasonable, accurate using easy to operate, height and temperature survey.
Description
Technical field
The utility model is related to a kind of experimental rig, more specifically, more particularly to a kind of for measuring marshal piece
The experimental rig of height and temperature.
Background technology
Marshall Test is the important tests of China's designing asphalt mixture, it is to determine Asphalt Mixture Design bitumen aggregate ratio
Important evidence.The fundamental test that marshal piece is Marshall Test is made, the quality that test specimen makes directly affects Marshall
The definite asphalt optimum oil-stone ratio of experiment.Marshall Test has great directive function to actual production construction, and
Experiment can really with directive significance first want condition be marshal piece manufacturing process whether standard, accurately.
It, should be in quality of asphalt mixtures, compaction temperature, the identical situation of compactive effort in the manufacturing process of marshal piece
Under, to ensure that molding sample dimensions comply with standard the requirement of height 63.5mm ± 1.3mm, it otherwise should cancel and reform.Due to horse
Xie Er test specimens are that ration pitch mixture is poured into Marshall die trial, be then placed on marshal piece compaction test apparatus hit it is real and
Into, and the size of Marshall standard test mode is φ 101.6mm*87mm（Small Marshall die trial）With φ 152.4mm*115mm（Big horse
Xie Er die trials）, the marshal piece hit after the completion of reality is in the recessed cylinder in die trial in two sides.According to《Highway engineering pitch and
Asphalt Mixture Experiment regulation》JTG E20-2011 measure test specimen from die trial to the marshal piece with die trial using slide calliper rule
The height of mouth and thus calculation testing piece height.Method is typically respectively to increase the cushion block of a 20mm or so in the both sides of test specimen, is used
Vernier caliper measurement goes out the whole height of test specimen and two cushion blocks, then subtracts the height of two cushion blocks, goes into action so as to calculate indirectly
The height of Xie Er test specimens, this measuring method needs more people to coordinate completion, and efficiency is low, and the exposure level of cushion block and test specimen causes
Generate large error.
In the manufacturing process of marshal piece, the difference of the compaction temperature of test specimen also influences every skill of marshal piece
Art index experimental result causes the definite variant of optimum oil-stone ratio, it is therefore necessary to which stringent control test specimen hits real temperature, will make
Make each test specimen compaction temperature difference control ±（2℃—3℃）Within scope.It is mainly mixed at present by testing pitch
The temperature of material controls the temperature of test specimen within allowed band, however the temperature of asphalt should not be measured and controlled, drip
Shown temperature and the temperature deviation for actually preparing marshal piece are larger on blue or green mixture mixer, it is impossible to really represent
The compaction temperature of marshal piece, and then there are no from learning for the temperature difference of every group of marshal piece.Through investigation, there are no special on the market
Door is a kind of for measuring the experimental provision of height of Marshall specimen and temperature, and therefore, design is a kind of to be used to measure marshal piece
The experimental rig of height and temperature is necessary.
So how to design a kind of experimental rig for being used to measure height of Marshall specimen and temperature, it is current to become us
It solves the problems, such as.
The content of the invention
The shortcomings that the utility model is in order to overcome above-mentioned technical problem provides one kind for measuring height of Marshall specimen
With the experimental rig of temperature.
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, including engine base, column, stretches
Sleeve, telescope support, measuring staff and displacement sensor, column are fixed on engine base；It is characterized in that：Extension sleeve is horizontally disposed with simultaneously
The upper end of column is rotatably dispose in, telescope support is telescopically arranged in extension sleeve, the upper and lower sides point of telescope support outer end
Be not fixed with displacement sensor and fixator, measuring staff is from top to bottom sequentially passed through in displacement sensor, fixator setting, measuring staff into
Vertical state；The release button controlled whether to measuring staff /V is provided on displacement sensor；It is fixed on engine base below measuring staff
There are the test piece base for placing marshal piece, the height phase of die trial pedestal of the height of test piece base with making marshal piece
Deng；Multiple temperature sensors are provided on the upper surface of test piece base, the leveling spiral shell of 3 or more is provided on the lower surface of engine base
It revolves, the level(l)ing bubble whether mark engine base is in horizontality is fixed on engine base.
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, the measuring staff and displacement sensing
Device is made of electronic vernier caliper, and side lever is marks graduated main scale, and accuracy can simultaneously move up and down for 1mm, displacement sensing
Device is the vernier equipped with 10 evenly divideds, and accuracy 0.1mm, vernier is fixed on telescope support upper end.
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, the both sides of test piece base are all provided with
The semicircle pedestal that big marshal piece is supported and is positioned is equipped with, is provided with what it was oriented to below semicircle pedestal
Slideway.
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, the lower end of measuring staff is provided with survey
Bar is popped one's head in, and measuring staff probe is connected by screw thread with measuring staff.
The utility model for measuring the experimental rig of height of Marshall specimen and temperature, set on the side of the engine base
The temperature indicator and elevation indicator for showing marshal piece temperature and height respectively are equipped with, list is provided on elevation indicator
It is worth display window and average value display window, power switch is additionally provided on the side of engine base；Power cord, power cord are connected on engine base
End be connected with attaching plug.
The experimental rig for being used to measure height of Marshall specimen and temperature of the utility model, the upper end of the column are set
There is central shaft, the periphery of central shaft is provided with the annulus connector that can be rotated, and extension sleeve is welded on annulus connector,
It is provided on annulus connector by itself and mutually fixed first fixing bolt of central shaft；It is provided on extension sleeve by it with stretching
Mutually fixed second fixing bolt of stent.
The utility model for measuring the experimental rig of height of Marshall specimen and temperature, institute's displacement sensors and solid
Determine device to be fixed on telescope support by connecting rod.
The beneficial effects of the utility model are：The height of Marshall specimen of the utility model and the experimental rig of temperature, machine
Test piece base and column are fixed on seat, extension sleeve is rotatably dispose in column upper end, and telescope support is placed in extension sleeve, surveys
Bar is arranged at the outer end of telescope support；In use, multiple temperature sensors in test piece base can be realized to marshal piece temperature
Degree accurately measures, and for controlling the time of product and temperature, so as to ensure the reliability of marshal piece, reduces experiment and misses
Difference；By rotating extension sleeve to different angles and stretching telescope support to different length, it can be achieved that measuring staff has a rest to horse
Elevation carrection on your test specimen different position reacts the height of marshal piece so that acquisition by the average value of multiple points
Height value is more accurate.The height of Marshall specimen of the utility model and the experimental rig of temperature, have it is simple and reasonable, make
With the characteristics of easy to operate, height and temperature survey are accurate, advantageous effect is notable, is suitable for the application of popularization.
It further, can be according to marshal piece by the lower end of measuring staff the measuring staff being connected through screw thread being set to pop one's head in
Porosity and the size in aperture the measuring staff of suitable dimension to be selected to pop one's head in, can avoid measuring staff probe from leaking into gap, ensure that horse
The accuracy of Xie Er height of specimen measurement.Pass through set temperature display and elevation indicator on engine base, the real-time height of measurement
Angle value can show that precision 0.1mm, the height average repeatedly measured can be shown by average value by monodrome display window
Window shows, precision 0.1mm；The temperature value of measurement can show that precision is 0.1 DEG C, convenient by temperature indicator
Temperature value, the reading of height value and record.
Description of the drawings
Fig. 1 is the front view for being used to measure the experimental rig of height of Marshall specimen and temperature of the utility model；
Fig. 2 is the top view for being used to measure the experimental rig of height of Marshall specimen and temperature of the utility model；
Fig. 3 is the structure diagram of engine base Left-Hand Panel in the utility model；
Fig. 4 is the structure chart of central shaft and extension sleeve connecting portion in the utility model；
Fig. 5 is the structure chart of measuring staff probe and measuring staff connecting portion in the utility model.
In figure：1 marshal piece, 2 test piece bases, 3 measuring staffs probe, 4 temperature sensors, 5 engine bases, 6 power switches, 7 adjust
Flat spin, 8 columns, 9 measuring staffs, 10 fixators, 11 displacement sensors, 12 release buttons, 13 connecting rods, 14 telescope supports, 15 is flexible
Sleeve, 16 annulus connectors, 17 power cords, 18 attaching plugs, 19 slideways, 20 semicircle pedestals, 21 first fixing bolts, 22 second
Fixing bolt, 23 level(l)ing bubbles, 24 temperature indicators, 25 elevation indicators, 26 monodrome display windows, 27 average value display windows, 28
Central shaft, 29 screw threads, 30 die trials.
Specific embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the examination for being used to measure height of Marshall specimen and temperature of the utility model is set forth
The front view and top view of experiment device, shown experimental provision include engine base 5, column 8, extension sleeve 15, telescope support 14, survey
Bar 9, displacement sensor 11, fixator 10, test piece base 2, shown engine base 5, which serves, to be fixed and supported, and machine is fixed in upright bar 8
On seat 5, extension sleeve 15 is rotatably dispose in the upper end of column 8, and telescope support 14 is placed in extension sleeve 15, and can be in telescopic
It is moved in cylinder 15.Displacement sensor 11 is fixed on the upper end of telescope support 14 by connecting rod 13, and fixator 10 passes through connecting rod
13 are fixed on the lower end of telescope support 14, and measuring staff 9 is from top to bottom sequentially passed through to be set in displacement sensor 11 and fixator 10
It puts, the release button 12 whether control measuring staff 9 falls is provided on displacement sensor 11, fixator 10 realizes leading to measuring staff 9
To.Measuring staff 9 is in vertical state, so that measuring staff 9 falls under the gravity of itself.After setting, displacement sensor 11 is used for
The distance between lower surface when 1 upper surface of marshal piece is in initial position with measuring staff probe 3 is measured, it is h " to remember the distance；
The distance of lower surface and 2 upper surface of test piece base is certain value when measuring staff probe 3 is in initial position, is set to h ', then Marshall
The height of test specimen 1 is h '-h ", Marshall is shown by the monodrome display window 26 in 5 Left-Hand Panel elevation indicator 25 of engine base
The height value of test specimen 1.
Test piece base 2 is fixed on the engine base 5 of 9 lower section of measuring staff, and the height of test piece base 2 is with making marshal piece 1
30 substructure height of die trial is equal, to ensure coming into full contact with for 1 lower surface of marshal piece and 2 upper surface of test piece base.Test specimen bottom
Multiple temperature sensors 4 are provided on the upper surface of seat 2, temperature sensor 4 is fixed on by adjustable spring on engine base 5, and temperature
Degree sensor 4 is higher by the certain height of test piece base 2, to ensure that temperature sensor 4 and the lower surface of marshal piece are close
Contact more accurately measures the temperature of marshal piece 1, by the average value for taking multiple temperature sensors 4, you can obtains horse
The exact value of 1 temperature of Xie Er test specimens.Power cord 17 is provided on shown engine base 5, the end of power cord 17 is connected with attaching plug
18；Multiple leveling spirals 7 are fixed on the lower surface of engine base 5.
As shown in figure 3, the structure diagram of engine base Left-Hand Panel in the utility model is given, shown 5 left side of engine base
Temperature indicator 24, elevation indicator 25 and power switch 6 are provided on panel, temperature indicator 24 is used to show that Marshall tries
The temperature value of part 1, elevation indicator 25 are made of monodrome display window 26 and average value display window 27, and monodrome display window 26 is used to show
Show the height value of the marshal piece 1 of current or last one-shot measurement, average value display window 27 repeatedly measures height for showing
Average value.Level(l)ing bubble 23 is additionally provided on engine base 5, by observing the position of bubble in level(l)ing bubble 23, signable engine base 5
Whether in horizontality, cooperation leveling spiral 7 is, it can be achieved that the leveling of engine base 5.The both sides of shown test piece base 2 are both provided with
Semicircle pedestal 20 is provided with slideway 19 on the engine base 5 of the lower section of semicircle pedestal 20, by changing semicircle pedestal 20 on slideway 19
Position is, it can be achieved that the measurement of the height and temperature to size marshal piece.
The measuring staff 9 is an electronic vernier caliper actually with displacement sensor 11, and measuring staff 9 is the graduated master of mark
Ruler is accurate to 1mm, can move down, and displacement sensor 11 is provided with the vernier of 10 evenly divideds, is accurate to 0.1mm, Gu
14 upper end of telescope support is scheduled on, when falling on the upper surface of marshal piece 1 under measuring staff probe 3, is recorded in displacement sensor 11
Shift value precision for 0.1mm, ensure that measurement accuracy, reduce test error.
As shown in figure 4, give the structure chart of central shaft and extension sleeve connecting portion in the utility model, shown column
8 upper end is provided with central shaft 28, and the periphery of central shaft 28 is provided with the annulus connector 16 that can be rotated, extension sleeve 15
It is welded on annulus connector 16, the first fixing bolt 21 is provided on annulus connector 16, loosen the first fixing bolt 21, it can
Annulus connector 16 is made to be rotated around central shaft 28；The first fixing bolt 21 is tightened, can be made during annulus connector 16 is fixed on
In mandrel 28.The second fixing bolt 22 is provided on extension sleeve 15, by loosening the second fixing bolt 22, telescope support can be made
14 stretch in extension sleeve 15；By tighten the second fixing bolt, it can be achieved that telescope support 14 and extension sleeve 15 it
Between fixation.
As shown in figure 5, give measuring staff probe and the structure chart of measuring staff connecting portion, shown measuring staff 9 in the utility model
Lower end be provided with measuring staff probe 3, the lower end that measuring staff probe 3 is fixed on measuring staff 9 by screw thread 29, to facilitate measuring staff probe 3
Dismounting and replacement.The advantage of this kind design is to have taken into full account since the grading of asphalt is different, and Marshall is caused to try
1 porosity of part is different, prevents from, using the smaller probe of diameter, falling into the larger marshal piece gap of porosity, generates mistake
Difference.In addition, it is also contemplated that cause the non-uniform feelings of height of specimen due to being unevenly distributed when asphalt is poured into die trial
Condition selects the measuring staff probe that diameter is different, improves measurement accuracy.
The measuring method for being used to measure the experimental rig of height of Marshall specimen and temperature of the utility model, by following
Step is realized：
A) engine bases leveling, first, by rotating leveling spiral（7）Make level(l)ing bubble（23）Between two parties, so that engine base（5）Place
In horizontal level so that telescope support（14）In horizontal, measuring staff（9）In vertical state；
B) devices are powered, and power on plug（18）, turn on the power switch（6）, experimental rig is made to be in power-up state；
C) places test specimen, will hit the marshal piece after the completion of reality（1）It is positioned over test piece base（2）On, horse at this time has a rest
You carry die trial by test specimen（30）；
D) measurements height, loosens the first fixing bolt（21）With the second fixing bolt（22）, by rotating extension sleeve
（15）With change telescope support（14）Length, make measuring staff（9）The top of a certain position on marshal piece, and screw
One fixing bolt and the second fixing bolt；Then, release button is pressed（12）Make measuring staff（9）It falls, at this time elevation indicator
（25）On monodrome display window（26）It will show the height value of the marshal piece of institute's measuring point；
E) multimeterings, by changing extension sleeve（15）Rotational angle and telescope support（14）Collapsing length, change
Become marshal piece（1）The measurement position of upper surface, using the method identical with step d), the horse for obtaining different measurement points has a rest
That test specimen（1）Height value；Elevation indicator at this time（25）On monodrome display window（26）It will show the height of the last measurement
Angle value, average value display window（27）It will show the average value of the height of Marshall specimen repeatedly measured；
F) measures temperature, marshal piece（1）It is positioned over test piece base（2）After upper, with marshal piece（1）With
Test piece base（2）Between heat transfer tend towards stability, temperature indicator（24）On eventually show stable temperature value, the temperature
Value is marshal piece（1）Temperature value；
G) is finally turned off the power switch（6）, pull up attaching plug（18）, remove marshal piece（1）.
In step c), if small marshal piece is placed, two semicircular pedestal（20）Pass through slideway（19）It is moved to outer
Side and by test piece base（2）Small marshal piece is supported；If big marshal piece is placed, two semicircular pedestal
（20）Pass through slideway（19）It is moved to inside and test piece base（2）The common support and positioning realized to big marshal piece.
Claims (7)
1. it is a kind of for measuring the experimental rig of height of Marshall specimen and temperature, including engine base（5）, column（8）, extension sleeve
（15）, telescope support（14）, measuring staff（9）And displacement sensor（11）, column is fixed on engine base；It is characterized in that：Telescopic
Cylinder is horizontally disposed and is rotatably dispose in the upper end of column, and telescope support is telescopically arranged in extension sleeve, outside telescope support
The upper and lower sides at end are respectively fixed with displacement sensor（11）And fixator（10）, measuring staff from top to bottom sequentially passed through in displacement sensing
Device, fixator are set, and measuring staff is into vertical state；The release button controlled whether to measuring staff /V is provided on displacement sensor
（12）；Placement marshal piece is fixed on engine base below measuring staff（1）Test piece base（2）, the height and system of test piece base
Make the die trial of marshal piece（30）The height of pedestal is equal；Multiple temperature sensors are provided on the upper surface of test piece base
（4）, the leveling spiral of 3 or more is provided on the lower surface of engine base, whether mark engine base is fixed in horizontal on engine base
The level(l)ing bubble of state（23）.
2. the experimental rig according to claim 1 for being used to measure height of Marshall specimen and temperature, it is characterised in that：Institute
State measuring staff（9）And displacement sensor（11）It is made of electronic vernier caliper, to mark graduated main scale, accuracy is side lever
1mm can simultaneously be moved up and down, and displacement sensor is the vernier equipped with 10 evenly divideds, and accuracy 0.1mm, vernier is fixed on
Telescope support（14）Upper end.
3. the experimental rig according to claim 1 for being used to measure height of Marshall specimen and temperature, it is characterised in that：Examination
Part pedestal（2）Both sides be both provided with the semicircle pedestal that big marshal piece is supported and is positioned（20）, semicircle pedestal
Lower section is provided with the slideway being oriented to it（19）.
4. according to claim 1 or 2 for measuring the experimental rig of height of Marshall specimen and temperature, feature exists
In：Measuring staff（9）Lower end be provided with measuring staff probe（3）, measuring staff, which is popped one's head in, passes through screw thread（29）It is connected with measuring staff.
5. according to claim 1 or 2 for measuring the experimental rig of height of Marshall specimen and temperature, feature exists
In：The engine base（5）Side on be provided with and show marshal piece respectively（1）The temperature indicator of temperature and height（24）With
Elevation indicator（25）, monodrome display window is provided on elevation indicator（26）With average value display window（27）, the side of engine base
On be additionally provided with power switch（6）；Power cord is connected on engine base（17）, the end of power cord is connected with attaching plug（18）.
6. according to claim 1 or 2 for measuring the experimental rig of height of Marshall specimen and temperature, feature exists
In：The column（8）Upper end be provided with central shaft（28）, the periphery of central shaft is provided with the annulus connector that can be rotated
（16）, extension sleeve（15）It is welded on annulus connector, is provided on annulus connector by itself and central shaft mutually fixed
One fixing bolt（21）；Extension sleeve（15）On be provided with itself and telescope support（14）Mutually fixed second fixing bolt
（22）.
7. according to claim 1 or 2 for measuring the experimental rig of height of Marshall specimen and temperature, feature exists
In：Institute's displacement sensors（11）And fixator（10）Pass through connecting rod（13）It is fixed on telescope support（14）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140039.9U CN207379412U (en) | 2017-09-07 | 2017-09-07 | A kind of experimental rig for being used to measure height of Marshall specimen and temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140039.9U CN207379412U (en) | 2017-09-07 | 2017-09-07 | A kind of experimental rig for being used to measure height of Marshall specimen and temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207379412U true CN207379412U (en) | 2018-05-18 |
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ID=62343528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721140039.9U Expired - Fee Related CN207379412U (en) | 2017-09-07 | 2017-09-07 | A kind of experimental rig for being used to measure height of Marshall specimen and temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207379412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449343A (en) * | 2017-09-07 | 2017-12-08 | 山东交通学院 | A kind of experimental rig and method for being used to measure height of Marshall specimen and temperature |
| CN108562862A (en) * | 2018-06-21 | 2018-09-21 | 宁波大学 | A kind of specimen holder device for the test of magneto-electric coupled coefficient |
-
2017
- 2017-09-07 CN CN201721140039.9U patent/CN207379412U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449343A (en) * | 2017-09-07 | 2017-12-08 | 山东交通学院 | A kind of experimental rig and method for being used to measure height of Marshall specimen and temperature |
| CN108562862A (en) * | 2018-06-21 | 2018-09-21 | 宁波大学 | A kind of specimen holder device for the test of magneto-electric coupled coefficient |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20190907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |