CN207586046U - A kind of asphalt mixture shearing strength tester for simulating actual wheel load - Google Patents
A kind of asphalt mixture shearing strength tester for simulating actual wheel load Download PDFInfo
- Publication number
- CN207586046U CN207586046U CN201721630979.6U CN201721630979U CN207586046U CN 207586046 U CN207586046 U CN 207586046U CN 201721630979 U CN201721630979 U CN 201721630979U CN 207586046 U CN207586046 U CN 207586046U
- Authority
- CN
- China
- Prior art keywords
- environmental cabinet
- asphalt mixture
- wheel
- shearing strength
- cushion cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model is related to a kind of asphalt mixture shearing strength testers for simulating actual wheel load, environmental cabinet including being equipped with heating unit, loading wheel and die trial cushion cap are provided in environmental cabinet, loading wheel applies pressure and the first power plant moved back and forth in the horizontal direction by connecting rod connection for loading wheel to be driven to treat test block, and loading wheel is located above die trial cushion cap；Temperature sensor in environmental cabinet is installed, displacement sensor and force snesor are installed on connecting rod, temperature sensor, displacement sensor and force snesor are all connected with control panel.The utility model varying environment temperature required when can be with regulation experiment can simulate actual wheel load, carry out asphalt mixture shearing strength test.The utility model can carry out asphalt shear strength test in effectively simulation actual environment temperature and road surface dynamic load, be consistent with actual conditions, accuracy is high.
Description
Technical field
The utility model belongs to asphalt mixture shearing intensity device technical field, is related to a kind of simulation actual wheel load
Asphalt mixture shearing strength tester.
Background technology
In recent years, highway cause in China's is grown rapidly, and achieves huge achievement.At present, the high-grade public affairs in China
Generally using Semi rigid bituminous surface structure, this pavement structure adapts to the construction of the high-grade highway of Heavy Traffic for China on road
Significant contribution is made that with development.However, semi-rigid asphalt pavement generally existing early damage phenomenon, learns this both at home and abroad
Person has carried out a large amount of investigation.Research shows that inter-laminar shear failure is to cause one of key factor of road surface breakage.Interlayer shear
Lead to that Assessment of Serviceability of Roads degradation can be made after interlayer slip, the serious curtailment service life of road.Asphalt mixture is made
For a kind of response to temperature material, performance is closely related with environment temperature.Therefore, pitch under different temperatures can be measured by being badly in need of one kind
The equipment of mixture anti-shear performance cuts performance preferably to embody asphalt shearing strength at intersection.
Asphalt mixture shearing strength tester is to measure the anti-shearing strong indispensable equipment of asphalt, convenient
Fast.
At present, asphalt mixture shearing strength tester has the following disadvantages：
When the first, applying side pressure to test specimen, using static loading mode, this is not inconsistent with actual conditions；
2nd, the influence of Temperature on Asphalt Mixture performance is not considered, and experimental result is related with ambient temperature during experiment, obtains
Data have very big uncertainty；
3rd, it is tested using round test specimen, it is impossible to reflect the force-bearing situation of pavement structure well；
When the 4th, applying side load, active area is unique, without representativeness.
Invention content
The purpose of the utility model is to overcome problems of the prior art, provide a kind of simulation actual wheel load
Asphalt mixture shearing strength tester, can apply dynamic load, simulate actual wheel load, complete asphalt shearing resistance
Shearing stress is tested.
In order to achieve the above object, the utility model adopts the following technical solution：
Environmental cabinet including being equipped with heating unit is provided with loading wheel and die trial cushion cap in environmental cabinet, loads wheel
Pressure and move back and forth in the horizontal direction first are applied for loading wheel to be driven to treat test block by connecting rod connection
Power plant, loading wheel are located above die trial cushion cap；
Temperature sensor in environmental cabinet is installed, displacement sensor and force snesor are installed on connecting rod, temperature passes
Sensor, displacement sensor and force snesor are all connected with control panel.
Further, environmental cabinet contains inner and outer wall, heating unit include the outer wall for being arranged on environmental cabinet and inner wall it
Between heating wire.
Further, the inner wall of environmental cabinet uses stainless steel material using the heat shield panel that can be dismantled, outer wall；In environmental cabinet
Heat preserving and insulating material is set between outer wall and inner wall.
Further, there are four wheel and four support bases for the bottom installation of environmental cabinet.
Further, loading wheel is connected by connecting rod and conduit with the first power plant, interior at the top of environmental cabinet
Side is equipped with the first horizontal sliding rail, and the first sliding rail connects wheel platform sling by pulley, and connecting rod is vertically arranged and passes through vehicle
Take turns platform sling.
Further, it loads between wheel and connecting rod to be threadedly coupled.
Further, die trial cushion cap is mounted on by pulley and the second horizontal sliding rail in environmental cabinet, and die trial cushion cap passes through
Transmission rod connects the second power plant for die trial cushion cap to be driven to slidably reciprocate in the horizontal direction, is opened up on the side wall of environmental cabinet
It is useful for the through-hole that die trial cushion cap skids off；Location nut is provided on the side wall of die trial cushion cap.
Further, environmental cabinet offers the side wall of through-hole equipped with the door with windowpane.
Further, the first power plant and the second power plant use servo-type hydraulic press.
Further, test specimen to be measured is cuboid.
Compared with prior art, the utility model has technique effect beneficial below：
The utility model is by environmental cabinet of the increase with heating unit, required varying environment temperature when can be with regulation experiment
Degree；Meanwhile wheel and die trial cushion cap are loaded by setting, actual wheel load can be simulated, it is strong to carry out asphalt mixture shearing
Degree test；Different loading types is controlled by setting displacement sensor, force snesor and control panel, wherein, power passes
Sensor can obtain dynamic load confining pressure suffered by test specimen to be measured, and displacement sensor can obtain the change in displacement of loading wheel, reach
To the size of shear load and the size control of displacement, so as to control different loading types, such as strain or iso-stress loading.
The utility model can carry out asphalt shear strength in effectively simulation actual environment temperature and road surface dynamic load
Test, is consistent with actual conditions, and accuracy is high.
Further, using the heat shield panel that can be dismantled, reducing may fall in experimentation the utility model environment chamber interior wall
Pollution of the experiment residue fallen to heating wire；Outer wall uses stainless steel material, plays the role of supporting box, and closed environment
Case；By setting heat preserving and insulating material, prevent temperature from leaking, improve heating rate.
Further, the utility model sets wheel and support base at the angle of the bottom surface of environmental cabinet four, convenient for removing for instrument
Fortune, and during standing, retractable wheels put down support base, reduce the damage of wheel, and prevent instrument installation unstable.
Further, the utility model applies side pressure by using the loading wheel that can be replaced, and can apply different contacts
The practical driving wheel of area carries, and dynamic load speed is controllable.
Further, the utility model skids off die trial cushion cap by setting the second sliding rail, facilitate test specimen be put into and
It takes out, can be burned to avoid experimenter due to the object accidentally run into environmental cabinet.
Further, the utility model is equipped with the door with windowpane, convenient for sealed environment case and can observation experiment mistake in real time
Various situations in journey.
Further, the utility model uses the test specimen to be measured of cuboid, can reflect the stress of pavement structure well
Situation.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 2 (a) is the side-pressing device schematic diagram of the utility model, and Fig. 2 (b) is the side view of side-pressing device.
Fig. 3 is the control panel schematic diagram of the utility model.
Fig. 4 (a) is the schematic diagram of door of the utility model with windowpane, and Fig. 4 (b) is the schematic diagram of die trial cushion cap.
Fig. 5 is the heating wire distribution map of the utility model.
Fig. 6 is the circuit controling drawing of the utility model.
Wherein 1 environmental cabinet, 2 loading wheels, 3 wheel platform slings, 4 transmission rods, 5 second sliding rails, 6 heating wire, 7 temperature sensing
Device, 8 displacement sensors, 9 force snesors, 10 servo-type hydraulic presses, 11 die trial cushion caps, 12 control panels, 13 location nuts, 14 bands
The door of windowpane, 15 support bases, 16 wheels, 17 conduits, 18 connecting rods, 19 conducting wires.
Specific embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.
With reference to figure 1, the utility model includes environmental cabinet 1, replaceable loading wheel 2, wheel platform sling 3, transmission rod 4, the
One sliding rail, the second sliding rail 5, heating wire 6, temperature sensor 7, displacement sensor 8, force snesor 9, servo-type liquid around four walls
Press 10, die trial cushion cap 11, control panel 12, location nut 13,14, four, the door vehicle of support base 15, four with windowpane
Wheel 16, more conduits 17, connecting rod 18, multiple conducting wires 19.
Four wheels 16 are located at four angles of 1 bottom of environmental cabinet respectively, when needing mobile instrument, play and reduce friction
Effect；Four support bases 15 are located at the outside of four wheels 16 respectively, play the role of retainer instrument, instrument slips is avoided to make
Into destruction.
Environmental cabinet 1 includes inner wall and outer wall, and inner wall uses detachable heat shield panel, reduces the reality that may be fallen in experimentation
Pollution of the check-fault slag to heating wire.Outer wall uses stainless steel material, plays the role of supporting box, and closed environment case 1.
Wheel platform sling 3 is horizontally disposed and positioned at 1 inner top of environmental cabinet, and wheel platform sling 3 is slided by pulley and horizontal first
1 madial wall of rail JA(junction ambient) case, loading wheel 2 are connected by connecting rod 18 and conduit 17 with the first power plant, connecting rod
Part 18 is vertically arranged and across wheel platform sling 3, and the first power plant is located at 1 outside of environmental cabinet, is applied to control loading wheel 2
Pressure on test specimen, to simulate the pressure on actual vehicle load action to road surface, and the first power plant can drive and add
Carrier vehicle wheel 2 moves back and forth in the horizontal direction.
Die trial cushion cap 11 is located at the lower section of loading wheel 2；Location nut 13 is located at 11 right side two-end-point position of die trial cushion cap
Place, plays the role of fixed test specimen, test specimen is avoided to generate displacement under the action of dynamic horizontal pressure；Transmission rod 4 is located at die trial cushion cap
11 right sides are simultaneously connected with the second power plant, and servo-type hydraulic press 10 is connected, and die trial cushion cap 11 passes through pulley and horizontal second
Sliding rail 5 is mounted in environmental cabinet 1, and the through-hole skidded off for die trial cushion cap 11 is offered on the side wall of environmental cabinet 1, dynamic by second
Power apparatus and transmission rod 4, can drive die trial cushion cap 11 to skid off environmental cabinet 1, convenient for being put into for test specimen；Die trial cushion cap 11 completely into
After entering environmental cabinet 1, the side wall of die trial cushion cap 11 and the side wall of environmental cabinet 1 flush, and in the side of environmental cabinet 1 for offering through-hole
Wall is equipped with the door 14 with windowpane.First power plant and the second power plant use servo-type hydraulic press 10.
Referring to Fig. 2 (a) and Fig. 2 (b), loading wheel 2 can be replaced, and the representative vehicle in different regions is respectively adopted
Wheel, in the hope of simulating most true road surface working condition.
Referring to Fig. 3, there is wheel rising switch, power switch, wheel velocity to switch on the control panel 12 of the utility model,
Side pressure size switch, iso-stress loaded switches and strain loadings is waited to switch, also temperature display, side pressure display screen and shearing are aobvious
Display screen, and temp control switch, side pressure control switch and shearing control switch are correspondingly arranged in each display screen side.
Referring to Fig. 4 (a), the door 14 with windowpane is equipped on the side wall of environmental cabinet 1, loading wheel 2 is conveniently replaceable, places
Test specimen and the sealed environment case in test, and can in real time during observation experiment various situations.Test specimen to be measured is rectangular
The bodily form.Referring to Fig. 4 (b), die trial cushion cap 11 is rectangle drawer-type structure, convenient for placing test specimen to be measured.
Referring to Fig. 5, heating wire 6 is between environment chamber interior wall and environment box outer wall, and heating wire 6 is evenly distributed on both sides
In siding and bottom surface siding, to reach uniformly heated effect.Heat preserving and insulating material between outer wall and inner wall can be set, prevented
Temperature leaks, and improves heating rate.
Temperature sensor 7 is located at 11 upper right side of die trial cushion cap；Displacement sensor 8 and force snesor 9 and 18 phase of connecting rod
Even, to control the size of shear stress；Temperature sensor 7, displacement sensor 8 and force snesor 9 are in environmental cabinet 1, control
Panel 12 processed is located at 1 outside of environmental cabinet and passes through conducting wire 19 and is connected with temperature sensor 7, displacement sensor 8 and force snesor 9,
To reach temperature, load and the adjustment of displacement and setting, as shown in Figure 6.
The use process of the utility model is：Power on, open the door 14 with windowpane, pass through requirement of experiment, selection
Suitable loading wheel 2, die trial cushion cap 11 after replacement, pulled out by the second sliding rail 5, test specimen be put into die trial cushion cap
11, and pass through location nut 13 and securely fix test specimen, in order to avoid extra displacement is generated, then by die trial cushion cap 11 along second
Sliding rail 5 slides into, and shuts the door 14 with windowpane, and the setting of test parameters is carried out by control panel 12, selects suitable experiment
Temperature, wheel load, the loading speed of wheel and shearing force loading type.Finally, click control panel 12 on start by
Button is tested.
The utility model can be controlled experimental situation, heated, made using the environmental cabinet 1 for including heating wire 6
Environment during experiment reaches the temperature needed for experimenter.By can be simulated with the loading wheel 2 of re-type practical road surface by
The situation of power, and be further applied load using the first power plant to loading wheel 2, the shearing force needed for experiment is provided, passes through first
Power plant, 3 and first sliding rail of wheel platform sling match, and loading 2 level of wheel is driven to slidably reciprocate, is applied so as to reach
The purpose of dynamic load.The speed of dynamic load can also be controlled and be adjusted according to actual conditions.By connecting rod 18 with
Servo-type hydraulic press 10, loads in different forms.It is finally reached in the case of can simulating actual environment temperature and road surface dynamic load
The purpose of asphalt shear strength.
The change in experimentation is controlled in real time with displacement sensor 8 and force snesor 9 on connecting rod 18 simultaneously
Change.The heating wire 6 of heating is provided in the double-deck clamping plate of environmental cabinet 1, and temperature is regulated and controled according to temperature sensor 7.
Die trial cushion cap 11 has the second sliding rail 5 so that die trial cushion cap 11 can be skidded off along track, being put into and taking out convenient for test specimen.
Test specimen can be fixed on the position specified by the location nut 13 positioned at 11 right side of die trial cushion cap, in order to avoid applied above test specimen
Side dynamic load pressure makes test specimen generate extra movement.
The utility model increases environmental cabinet 1, required varying environment temperature when can be with regulation experiment, while simulates reality
Wheel weight carries out asphalt mixture shearing strength test.Meanwhile the connecting rod 18 of side application shearing force can pass through biography
Sensor and control panel control different loading types：Deng strain or iso-stress loading.
Claims (10)
1. a kind of asphalt mixture shearing strength tester for simulating actual wheel load, it is characterised in that：Add including being equipped with
The environmental cabinet (1) of thermal, environmental cabinet (1) is interior to be provided with loading wheel (2) and die trial cushion cap (11), and loading wheel (2) passes through
Connecting rod (18) connection applies pressure and move back and forth in the horizontal direction for loading wheel (2) to be driven to treat test block
One power plant, loading wheel (2) is above die trial cushion cap (11)；
Temperature sensor (7) in environmental cabinet (1) is installed, displacement sensor (8) and power sensing are installed on connecting rod (18)
Device (9), temperature sensor (7), displacement sensor (8) and force snesor (9) are all connected with control panel (12).
2. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：Environmental cabinet (1) contains inner and outer wall, and heating unit includes being arranged between the outer wall and inner wall of environmental cabinet (1)
Heating wire (6).
3. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 2, special
Sign is：The inner wall of environmental cabinet (1) uses stainless steel material using the heat shield panel that can be dismantled, outer wall；In environmental cabinet (1) outer wall
Heat preserving and insulating material is set between inner wall.
4. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：There are four wheel (16) and four support bases (15) for the bottom installation of environmental cabinet (1).
5. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：Loading wheel (2) is connected by connecting rod (18) and conduit (17) with the first power plant, is pushed up in environmental cabinet (1)
The first horizontal sliding rail is installed, the first sliding rail connects wheel platform sling (3) by pulley, and connecting rod (18) is set vertically on the inside of portion
It puts and passes through wheel platform sling (3).
6. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：It loads between wheel (2) and connecting rod (18) to be threadedly coupled.
7. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：Die trial cushion cap (11) by pulley and horizontal the second sliding rail (5) in environmental cabinet (1), die trial cushion cap (11)
The second power plant for die trial cushion cap (11) to be driven to slidably reciprocate in the horizontal direction, environmental cabinet are connected by transmission rod (4)
(1) through-hole skidded off for die trial cushion cap (11) is offered on side wall；Positioning spiral shell is provided on the side wall of die trial cushion cap (11)
Female (13).
8. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 7, special
Sign is：The side wall that environmental cabinet (1) offers through-hole is equipped with the door (14) with windowpane.
9. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 7, special
Sign is：First power plant and the second power plant use servo-type hydraulic press (10).
10. a kind of asphalt mixture shearing strength tester for simulating actual wheel load according to claim 1, special
Sign is：Test specimen to be measured is cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630979.6U CN207586046U (en) | 2017-11-28 | 2017-11-28 | A kind of asphalt mixture shearing strength tester for simulating actual wheel load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630979.6U CN207586046U (en) | 2017-11-28 | 2017-11-28 | A kind of asphalt mixture shearing strength tester for simulating actual wheel load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586046U true CN207586046U (en) | 2018-07-06 |
Family
ID=62734309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721630979.6U Expired - Fee Related CN207586046U (en) | 2017-11-28 | 2017-11-28 | A kind of asphalt mixture shearing strength tester for simulating actual wheel load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207586046U (en) |
-
2017
- 2017-11-28 CN CN201721630979.6U patent/CN207586046U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107796714A (en) | Simulate the asphalt mixture shearing strength tester of actual wheel load | |
| CN105136587B (en) | A kind of asphalt mixture in track test device | |
| CN102175539B (en) | Temperature-control pressure chamber system for unsaturated soil tri-axial apparatus | |
| CN108007800B (en) | Model test device and test method for circular dynamic load soil body settlement | |
| CN201569616U (en) | Novel rut tester for bituminous mixture | |
| KR20190021888A (en) | Loading device of freeze testing apparatus for ground | |
| CN204988883U (en) | Bituminous mixture wheel tracking test device | |
| CN207700013U (en) | A kind of asphalt Reflective Cracking Resistance detection device | |
| CN106596285A (en) | Experimental device used for evaluation of water stability of bituminous mixture and experimental method | |
| US20230073710A1 (en) | Intelligent test system and method for traffic load engineering detection of road construction | |
| CN104330309A (en) | Mechanical load testing machine for photovoltaic module | |
| KR101979775B1 (en) | Freeze testing apparatus for ground using up and down motion type multiplex cell | |
| CN106092730A (en) | The concrete temperature stress testing machine system of application walk-in type environmental laboratory | |
| CN106969991A (en) | A kind of bituminous paving repeated impact test device | |
| CN207439831U (en) | A kind of asphalt fatigue loading device of simulated environment temperature shock | |
| CN207586046U (en) | A kind of asphalt mixture shearing strength tester for simulating actual wheel load | |
| CN208888072U (en) | A kind of asphalt Reflection Cracking performance testing device | |
| CN109374434A (en) | Asphalt concrete pavement material shearing performance test device | |
| CN206057135U (en) | Modified pitch viscosity real time remote detecting system | |
| CN106248723B (en) | The method of bitumen mixture specimen volume change when measuring induction heating | |
| CN109738312B (en) | Road ice melting model test device and method for simulating traffic load | |
| CN209043679U (en) | The asphalt track test device bottom stage of pavement behavior analog | |
| CN205484286U (en) | Simulation road pavement material's " heat island effect " indoor experimental testing arrangement | |
| CN108267360A (en) | Microcomputer controls true triaxial frozen soil experiment machine | |
| CN203101195U (en) | Multifunctional shear apparatus for bituminous pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |