CN206410987U - A kind of accelerated loading road surface comprehensive test system - Google Patents
A kind of accelerated loading road surface comprehensive test system Download PDFInfo
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- CN206410987U CN206410987U CN201621265482.4U CN201621265482U CN206410987U CN 206410987 U CN206410987 U CN 206410987U CN 201621265482 U CN201621265482 U CN 201621265482U CN 206410987 U CN206410987 U CN 206410987U
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- road surface
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- water tank
- central shaft
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Abstract
The utility model discloses a kind of accelerated loading road surface comprehensive test system, including chamber, one layer of road surface test layer is provided with the chamber, test device is provided with the road surface test layer, the test device, which includes one, can load the loading disc of counterweight, several experiment wheels are installed below the loading disc, motor is provided with the top of the chamber, the motor is fixedly connected by a central shaft with test device, torsion torque sensor is provided with the central shaft, an installing plate is fixedly installed in the middle part of the chamber, infrared counting device and air heating apparatus are additionally provided with the installing plate, the experiment wheel and loading disc are used and are detachably connected, the experiment wheel uses rubber wheel, the loading disc bottom surface is additionally provided with displacement transducer, the counting bar of a level is also associated with the central shaft.The test system architecture is simple, and easy to operate, cumulative errors are small, and human factor influence is small, and measurement accuracy is high, and system capital input is few.
Description
Technical field
The utility model belongs to construction field, and in particular to a kind of accelerated loading road surface comprehensive test system.
Background technology
Laying of roadway is mainly used as cementitious matter by the use of cement or pitch now.
Highway cement concrete pavement, by cement（Or add the mineral admixtures such as flyash, blast furnace mineral products powder and clinker）、
Water, coarse aggregate, fine aggregate and additive, the mix under special mixing equipment by a certain percentage, through manually or mechanically paving, consolidating
With the procedure technology such as surface treatment, formed under certain curing condition and meet the artificial stone of design strength.
Highway asphalt concrete pavement, by pitch, coarse aggregate, fine aggregate, miberal powder and extra material（Fiber, rubber grain, height
Molecularly Imprinted Polymer etc.）, by a certain percentage in special mixing equipment under the conditions of certain temperature mix, through manually or mechanically paving,
Roll and form certain thickness works.
No matter cement concrete pavement, or asphalt concrete pavement is under automobile tire rolling friction effect, surface water
Cement mortar, fine aggregate and coarse aggregate can be denuded, and road surface antiskid performance --- friction co-efficient value is less and less；Pitch coagulation
Soil surface can also be formed rut, embrace, the disease such as wave and bellding.The composite index of road surface function drops to certain critical
, it is necessary to repair road surface function of surface after value, or one layer of pavement structure is overlayed again in road surface.
In road surface function synthesized index tests, full full scale test can preferably simulated roadway it is actual by automotive wheels
The effect of tire, and road surface function synthesized index, can also be tested and data processing with professional detection device, complete compared with energy
Ground surface material and pavement structure pavement performance are reflected in face.But this kind of experiment scale of investment is big, and the test period is long, such as US West's ring
Road system.The acceleration polishing testing machine of small full scale test, such as Britain exploitation；Current China is existing《Highway engineering is gathered materials experiment
Code》（JTG E42-2005）Middle T0321-2005 coarse aggregates polishing value experiment uses the kind equipment, the test bar of the kind equipment
There is a big difference with the effect of actual automobile rubber tire for part, and result of the test --- pendulum value comparison in difference is big, and its reason is sample chi
It is very little small, curved；Gather materials different with the condition of suffering restraints of gathering materials in water coagulation soil and bituminous concrete in the sample simultaneously,
The stressing conditions in actual concrete that gather materials can not be reflected.Wheel tracking test equipment --- Asphalt pavement analyzer, hamburger Measuring Device
Experiment wheel with common Measuring Device is straight line back and forth movement, using large-size sample, to a certain extent simulated automotive rubber
Tire road pavement is acted on, and its stressing conditions really can also be reflected by gathering materials in concrete, and wheel tracking test wheel width only has 50mm, simulation
Test wheelmark smaller, use standard pendulum friction coefficient determinator, when testing coefficient of sliding resistance, it is unreliable to measure numerical value, repeatability
Difference.
Utility model content
The utility model proposes a kind of accelerated loading road surface comprehensive test system, the test system architecture is simple, operation side
Just, cumulative errors are small, and human factor influence is small, and measurement accuracy is high, and system capital input is few.
What the technical solution of the utility model was realized in：A kind of accelerated loading road surface comprehensive test system, including examination
Tryoff, is provided with one layer of road surface test layer, the road surface test layer in the chamber and is provided with test device, the test
Device, which includes one, can load the loading disc of counterweight, and the loading disc lower section is provided with the top of several experiment wheels, the chamber
Motor is provided with, the motor is fixedly connected by a central shaft with test device, is provided with the central shaft
It is fixedly installed in the middle part of torsion torque sensor, the chamber on an installing plate, the installing plate and is additionally provided with infrared counting dress
Put and air heating apparatus, the experiment wheel and loading disc are using being detachably connected, and the experiment wheel uses rubber wheel, described to add
Load plate bottom surface is additionally provided with the counting bar that a level is also associated with displacement transducer, the central shaft.
Further, the central shaft include fixed part and can flexible movable part up and down, the movable part and
Loading disc is connected.
Further, the fountain head connected with water tank is provided with the installing plate, the chamber bottom is provided with water
A backwater hole is offered on case, the road surface test layer, the water tank is connected by return duct and backwater hole, and the water tank is being returned
A filter cup is additionally provided with below flow tube.
Further, it is provided with heating device of water tank in the water tank.
The beneficial effects of the utility model are as follows：Accelerated loading road surface described in the utility model comprehensive test system, its
Advantage is can be main as follows by same device to test road surface many indexes：（1）Can road pavement test layer progress friction system
Number test；（2）Using during rubber tyre can road pavement test layer carry out wheel tracking test；（3）The water-sensitive of road surface test layer can be tested
Perception.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure：1st, chamber；2nd, road surface test layer；3rd, loading disc；4th, central shaft；5th, experiment wheel；6th, installing plate；7th, torsion
Sensor；8th, infrared counting device；9th, air heating apparatus；10th, counting bar；11st, displacement transducer；12nd, movable part；
13rd, fountain head；14th, water tank；15th, return duct；16th, heating device of water tank；17th, bearing pin.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
A kind of accelerated loading road surface comprehensive test system shown in Figure 1, including chamber 1, set in the chamber 1
It is equipped with one layer of road surface test layer 2, the road surface test layer 2 and is provided with test device, the test device, which includes one, to be loaded
The loading disc 3 of counterweight, the lower section of loading disc 3 is provided with several experiment wheels 5, and the top of chamber 1 is provided with driving electricity
Machine, the motor is fixedly connected by 1 with test device, and torsion torque sensor 7, the chamber 1 are provided with described 4
Middle part is fixedly installed on an installing plate 6, the installing plate 6 and is additionally provided with infrared counting device 8 and air heating apparatus 9,
The experiment wheel 5 and loading disc 3 are using being detachably connected, and the experiment wheel 5 uses rubber wheel, and the bottom surface of loading disc 3 is also set
It is equipped with the counting bar 10 that a level is also associated with displacement transducer 11, described 4.
Process is as follows when in use for the utility model, starts motor, the central shaft 4 connected on motor by
It is fixedly connected in test device, so test device will be driven to be rotated, during rotation, experiment wheel 5 and road surface
Test layer 2 is in contact and rotated, during rotation, and torsion torque sensor experiences the moment of torsion being subject on 4, and by moment of torsion
Be delivered in controller just can calculate dynamic friction coefficient according to formula, in addition to this it is possible to be entered using the utility model
Row wheel tracking test（I.e. under 60 DEG C of set point of temperature, the solid tire using a wheel load as 0.7Mpa is in road surface test layer 2
Upper walking, measurement test specimen often increases the number of times that 1mm deformations need to walk, i.e. dynamic stability, with secondary/mm in stabilization period
Represent）, specifically, first pass through air heating apparatus 9 is heated to 60 DEG C or so by the temperature in chamber 1, then start driving
Motor, due to being provided with displacement transducer 11 on installing plate 6 of the present utility model, can accurately measure road surface test layer 2
Deformation, meanwhile, when central shaft 4 drives counting bar 10 to rotate, each time into facilitating quilt under infrared counting device 8
Count once, so infrared counting device 8 can accurately measure the number of times of the rotation of loading disc 3, the two last data are defeated
Entering into controller just can calculate the dynamic stability of road surface test layer 2.
Further, the central shaft 4 includes fixed part and the movable part 12 that can be stretched up and down, the movable part
12 are connected with loading disc 3.Of the present utility model 4 include telescopic movable part 12, just can carry out the regulation of height, can root
Pressure the need for according to difference between Adjustment Tests wheel 5 and road surface test layer 2, takes multiple measurements under different pressure,
The degree of accuracy of data is improved, specifically, can be adjusted by bearing pin 17 and pin-and-hole.
Further, the fountain head 13 connected with water tank 14 is provided with the installing plate 6, the bottom of chamber 1 is set
It is equipped with water tank, the road surface test layer 2 and offers a backwater hole, the water tank 14 is connected by return duct 15 and backwater hole,
The water tank is additionally provided with a filter cup 18 below return duct 15.Road surface water-sensitive can also be carried out using the utility model simultaneously
Fountain head 13 on perception experiment, installing plate 6 of the present utility model is connected by pipeline and water tank 14, and water ceaselessly washes away road surface
Test layer 2, is tested 3 hours, and road surface test layer 2 is taken out after off-test, and weighs the weight of the road surface test layer 2, and with punching
Road surface test layer 2 is compared before brush, calculates the weight that Emulsified Asphalt Mixture test specimen is washed away by water, it is determined that emulsification drip
Emulsified asphalt in blue or green compound and the caking property gathered materials（That is water sensitivity）.In order to save water tank in the energy, the utility model
In water can be recycled again, in order to filter out the impurity washed away produced by road surface test layer 2, in return duct 15
Lower section is additionally provided with a filter cup 18.
When the water sensitivity test on road surface is carried out, most suitable water temperature needs to be maintained at 5 DEG C to 60 DEG C, in order to just
In regulation, the utility model is provided with heating device of water tank 16 in water tank, the temperature in water tank can be maintained at into suitable constantly
In suitable temperature.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of accelerated loading road surface comprehensive test system, it is characterised in that including chamber, one is provided with the chamber
Test device is provided with layer road surface test layer, the road surface test layer, the test device, which includes one, can load adding for counterweight
It is provided with below load plate, the loading disc at the top of several experiment wheels, the chamber and is provided with motor, the driving electricity
Machine is fixedly connected by a central shaft with test device, is provided with the central shaft in the middle part of torsion torque sensor, the chamber
It is fixedly installed on an installing plate, the installing plate and is additionally provided with infrared counting device and air heating apparatus, the experiment
Wheel and loading disc are using being detachably connected, and the experiment wheel uses rubber wheel, and the loading disc bottom surface is additionally provided with displacement sensing
The counting bar of a level is also associated with device, the central shaft.
2. accelerated loading road surface according to claim 1 comprehensive test system, it is characterised in that the central shaft includes solid
Fixed part and the movable part that can be stretched up and down, the movable part are connected with loading disc.
3. accelerated loading road surface according to claim 2 comprehensive test system, it is characterised in that set on the installing plate
There is the fountain head connected with water tank, the chamber bottom is provided with water tank, the road surface test layer and offers a backwater hole,
The water tank is connected by return duct and backwater hole, and the water tank is additionally provided with a filter cup below return duct.
4. accelerated loading road surface according to claim 3 comprehensive test system, it is characterised in that be provided with the water tank
Heating device of water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265482.4U CN206410987U (en) | 2016-11-24 | 2016-11-24 | A kind of accelerated loading road surface comprehensive test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265482.4U CN206410987U (en) | 2016-11-24 | 2016-11-24 | A kind of accelerated loading road surface comprehensive test system |
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| Publication Number | Publication Date |
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| CN206410987U true CN206410987U (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621265482.4U Expired - Fee Related CN206410987U (en) | 2016-11-24 | 2016-11-24 | A kind of accelerated loading road surface comprehensive test system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655825A (en) * | 2017-11-18 | 2018-02-02 | 哈尔滨工业大学（威海） | A kind of rubber for tire high speed ice face frictional behavior test device |
| CN109342197A (en) * | 2018-08-21 | 2019-02-15 | 华北水利水电大学 | Accelerated loading device and method for ground surface material laboratory test |
| CN109374454A (en) * | 2018-12-07 | 2019-02-22 | 武汉理工大学 | Multifunction road pavement material performance testing device and test method |
| CN110441227A (en) * | 2019-08-13 | 2019-11-12 | 河海大学 | The synchrometer and test method of bituminous concrete antiskid performance and attenuation law |
| CN111289391A (en) * | 2020-03-12 | 2020-06-16 | 长沙理工大学 | Reciprocating movement loading test system for testing deformation of roadbed and pavement and test method thereof |
-
2016
- 2016-11-24 CN CN201621265482.4U patent/CN206410987U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655825A (en) * | 2017-11-18 | 2018-02-02 | 哈尔滨工业大学（威海） | A kind of rubber for tire high speed ice face frictional behavior test device |
| CN109342197A (en) * | 2018-08-21 | 2019-02-15 | 华北水利水电大学 | Accelerated loading device and method for ground surface material laboratory test |
| CN109374454A (en) * | 2018-12-07 | 2019-02-22 | 武汉理工大学 | Multifunction road pavement material performance testing device and test method |
| CN110441227A (en) * | 2019-08-13 | 2019-11-12 | 河海大学 | The synchrometer and test method of bituminous concrete antiskid performance and attenuation law |
| CN111289391A (en) * | 2020-03-12 | 2020-06-16 | 长沙理工大学 | Reciprocating movement loading test system for testing deformation of roadbed and pavement and test method thereof |
| CN111289391B (en) * | 2020-03-12 | 2022-09-09 | 长沙理工大学 | Reciprocating movement loading test system for testing roadbed and pavement deformation and test method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20211124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |