CN109632550A - A kind of wear hardness comparative test device and test method - Google Patents
A kind of wear hardness comparative test device and test method Download PDFInfo
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- CN109632550A CN109632550A CN201811581544.6A CN201811581544A CN109632550A CN 109632550 A CN109632550 A CN 109632550A CN 201811581544 A CN201811581544 A CN 201811581544A CN 109632550 A CN109632550 A CN 109632550A
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- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 230000000052 comparative effect Effects 0.000 title claims abstract description 16
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract 2
- 238000005299 abrasion Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of wear hardness comparative test device and test method, experimental rig includes two sample to be tested placing grooves being arranged in cabinet, attrition apparatus is equipped between two samples to be tested, attrition apparatus includes the master gear being connected to the motor, master gear, which is driven driven by the motor from gear, to be rotated, it is separately connected rubber pad from two sides above and below the shaft of gear, upside rubber pad can be in contact with the surface of top test specimen to be measured, and downside rubber pad can be in contact with the surface of lower section test specimen to be measured；Equipped with the spray head for spraying water to test specimen to be measured and for the sink of draining in cabinet, spray head connects water supplying pipe, and water supplying pipe connects water pump, is equipped with temperature control device in cabinet.Test method includes: that the surface of test specimen to be measured is made to be in contact with rubber pad, and motor drives master gear rotation, by driving rubber pad rotation from the rotation axis of gear, realizes and rubs simultaneously to the surface of two test specimens to be measured.Experimental rig processing cost of the invention is low, test method flexible operation.
Description
Technical field
The invention belongs to ground surface material performance test fields, and in particular to a kind of wear hardness comparative test device and test
Method.
Background technique
There are many in road traffic accident because road antiskid performance deficiency caused by, in order to study road skid resistance
Energy Decay Law has scholar to obtain the model for capableing of simulated roadway antiskid performance Decay Law by test indoors.Largely
The study found that bituminous pavement initial stage antiskid performance is all relatively good, but very fast in the suppression ratio in 1~2 year that is open to traffic, skid resistance later
It can decline and tend towards stability, be finally reached a stable level.This is primarily due to vehicle road pavement and is further compacted and grinds
Consumption causes voidage to reduce, to reduce macrostructure and microtexture.There are also some other factors, such as environment, weather
Deng also can road pavement antiskid performance have a certain impact.Asphalt antiskid performance degradation rule cannot still be well understood at present
The specific variation of rule.
The relevant prior art mainly has: American National bitumen technology center has developed three-wheel and accelerates abrasion instrument, this
Instrument is capable of the effect of preferable simulation actual vehicle road pavement, and being applicable not only to interior can also use in field.German cypress
Woods polytechnical university Wei Le and Shu Erci develops W-S sanding machine, and this instrument can measure the coefficient of friction in 20~80km/h,
Can road pavement core sample or indoor mixing asphalt carry out antiskid performance test, and can be with simulation test difference lotus
The antiskid performance of asphalt under load, revolving speed.The accelerated polishing machine of Britain TRRL research is widely applied by the whole world, but
It is that this method also presents limitation, it can only measure the polishing value for the 4.75~13.2mm that gathers materials, and cannot reflect synthesis
The influence of factor road pavement antiskid.State of Michigan Department of Transportation has investigated MDOT track abrasion instrument, and this instrument can be ground
Study carefully the influence of many factors road pavement antiskid performance, but cost is relatively high, the test period is long, it is difficult to be promoted and applied.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, a kind of wear hardness comparative test device is provided
And test method, cost is relatively low and can decline simultaneously for the antiskid under two test specimen test different humidities, different temperature conditions
Subtract rule.
To achieve the goals above, the present invention includes two sample to be tested placing grooves being arranged in cabinet, and two to be measured
Attrition apparatus is equipped between sample, attrition apparatus includes the master gear being connected to the motor, and master gear drives driven by the motor
It is rotated from gear, is separately connected rubber pad from two sides above and below the shaft of gear, upside rubber pad can be with top test specimen to be measured
Surface is in contact, and downside rubber pad can be in contact with the surface of lower section test specimen to be measured；It is equipped in cabinet for test specimen to be measured
The spray head of water spray and sink for draining, spray head connect water supplying pipe, and water supplying pipe connects water pump, is equipped with temperature control in cabinet and fills
It sets.
The sample to be tested placing groove includes the telescopic device being fixed on cabinet and is mounted on telescopic device
Test specimen support frame, test specimen support frame are equipped with telescopic card slot, and sample to be tested is fixed on telescopic card slot.It is described from gear
Both ends of the shaft is attached with the inner wall of cabinet by shaft respectively by support rod, the side of the master gear by speed reducer with
The motor connection being fixed on above cabinet, the other side is mounted on the bearing of the bottom of box.Be machined on the rubber pad with
The consistent decorative pattern of tire, rubber pad is using semicircle and is relatively set into circle in the two sides up and down of shaft respectively.Described
Spray head and sink are arranged in above and below the test specimen to be measured of lower section, and the moisture that sink is collected is discharged by drainpipe.Institute
It states from the shaft upper and lower ends of gear and displacement sensor is installed, set test specimen to be measured and displacement when rubber pad contacts is zero.
The test method of wear hardness comparative test device of the present invention, comprising the following steps:
Firstly, two test specimens to be measured are individually positioned in the telescopic card slot on test specimen support frame, fixed by adjusting
Telescopic device on test specimen support frame makes the surface of test specimen to be measured be in contact with rubber pad, contact condition by be mounted on from
The displacement sensor of rotary gear shaft end detects；Motor drives master gear rotation, and master gear drives from gear and rotates, solid from gear
Fixed the rotation of rotation axis drives rubber pad rotation on the rotating shaft, realizes and rubs simultaneously to the surface of two test specimens to be measured.
Test temperature is adjusted by temperature control device.It is tested after abrasion test using pendulum type friction instrument or artificial sand patch method
The coefficient of friction and construction depth of surface of test piece or the texture variations that surface of test piece is tested using 3D microscope.It will be to be measured with spray head
Surface of test piece is wet, the contrast specimen changing rule of coefficient of friction and surface texture under the conditions of dry tack free and surface wettability
Situation of change.
Compared with prior art, the present invention have it is following the utility model has the advantages that the experimental rig can test simultaneously two to
Test block, can be with abrasion loss of two test specimens of contrast test under drying condition or wet condition, can also be with contrast test two
A test specimen respectively under drying condition and wet condition abrasion loss difference.Abrasion number can be set according to test,
It is tested by other antiskid performance means of testing by test specimen to be measured resists under different attrition numbers, under the conditions of different tests
Abrasion ability, experimental condition can be test specimen and keep dry or humidity and different test temperatures etc., and in addition rubber pad can
The tyre surface of simulating wheel can more really reflect different tread contours to the attrition effect of surface of test piece in this way.
Detailed description of the invention
The structural schematic diagram of Fig. 1 wear hardness comparative test device of the present invention；
In attached drawing: 1- bracket；2- retarder；3- master gear；4- support rod；5- water pump；6- test specimen support frame；7- sink；
8- bearing；The telescopic card slot of 9-；10- rubber pad；11- is from gear；12- sample to be tested；13- telescopic device；14- spray head；15-
Displacement sensor；16- motor；17- temperature control device.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Referring to Fig. 1, wear hardness comparative test device of the invention includes two sample to be tested placing grooves, and two to be tested
The centre of sample is equipped with attrition apparatus, and attrition apparatus is to drive master gear 3 to rotate by motor 16, and the master gear 3 of rotation drives from tooth
11 rotation of wheel is fixed on from the upper and lower semicircle rubber pad 10 on rotary gear shaft and the rotation from the generation same direction of gear 11, on
Semicircle rubber pad 10 is in contact with the surface of the test specimen to be measured 12 in the 6 telescopic card slot 9 in lower section of test specimen support frame, another from gear 11
The fixed rubber pad 10 in one end end is in contact with the surface of another test specimen 12 to be measured, and the movement of test specimen 12 to be measured passes through solid
Determine the telescopic device 13 of test specimen support frame 6 to realize, test specimen 12 to be measured is placed in test specimen supporting table, in cabinet be equipped with for to
The spray head 14 that test block is sprayed water and the sink 7 for draining, spray head 14 connect water supplying pipe, pass through 17 Control experiment of temperature control device
The intracorporal temperature of case.The test device can test two test specimens to be measured simultaneously, can be with two test specimens of contrast test in dried strip
The anti-slide performance attenuation law of part, can also be with the difference of contrast test test specimen abrasion resisting ability under dry and wet condition.
Wear hardness comparative test method of the present invention, comprising the following steps:
One group of gyratory compaction molding asphalt track plate test specimen (2 test specimens), test specimen 12 to be measured is individually positioned in
In telescopic card slot 9 in test specimen supporting table 6, the telescopic device 13 being fixed on test specimen support frame 6 is adjusted, it is to be measured for adjusting
The height of test specimen 12 makes the surface of test specimen 12 to be measured be in contact respectively with rubber pad 10, and contact condition passes through displacement sensor 15
It reacting, motor 16 drives master gear 3 to rotate, and master gear 3 drives from gear 11 and rotates, and it is fixed on the rotating shaft from gear 11,
The rotation of rotation axis drives semicircle rubber pad 10 to rotate, and realizes the friction for treating 12 surface of test block.
It can use pendulum type friction instrument after test specimen abrasion test to be measured or artificial sand patch method test rubbing for surface of test piece
Coefficient and construction depth are wiped, also can use the situation of change of the test surface of test piece texture such as 3D microscope.The table of test specimen to be measured
Face can be dried, and can also moisten surface of test piece with spray head, can be tested using other means of testing in different tests condition
The changing rule of lower coefficient of friction and the situation of change of surface texture.The present invention can study the abrasion variation rule of test specimen to be measured
Rule for the design of Bituminous Mixture Ratio, the selection gathered materials and can wear away the designs such as channel type and provide reference.
The above is only preferred embodiments of the present invention, rather than is carried out in any form to technical solution of the present invention
Restriction, it will be apparent to a skilled person that under conditions of not departing from spirit of that invention principle, the present invention can be with
Several modifications and replacement are carried out, these modifications and replacement also can fall into the protection model that the application is limited by submitted claim
Within enclosing.
Claims (10)
1. a kind of wear hardness comparative test device, it is characterised in that: two samples to be tested including being arranged in cabinet are placed
Slot is equipped with attrition apparatus between two samples to be tested (12), and attrition apparatus includes the master gear (3) being connected with motor (16), leads
Gear (3), which is driven under the drive of motor (16) from gear (11), to be rotated, and is separately connected two sides up and down from the shaft of gear (11)
Rubber pad (10), upside rubber pad (10) can be in contact with the surface of top test specimen to be measured, and downside rubber pad (10) can be with
The surface of lower section test specimen to be measured is in contact；Equipped with the spray head (14) for spraying water to test specimen to be measured and for draining in cabinet
Sink (7), spray head (14) connect water supplying pipe, and water supplying pipe connects water pump (5), are equipped with temperature control device (17) in cabinet.
2. wear hardness comparative test device according to claim 1, it is characterised in that: the sample to be tested placing groove
Including the telescopic device (13) being fixed on cabinet and the test specimen support frame (6) being mounted on telescopic device (13), test specimen branch
Support (6) is equipped with telescopic card slot (9), and sample to be tested (12) is fixed on telescopic card slot (9).
3. wear hardness comparative test device according to claim 1, it is characterised in that: the shaft from gear (11)
Both ends of the shaft is attached with the inner wall of cabinet respectively by support rod (4), speed reducer is passed through in the side of the master gear (3)
(2) it is connect with the motor (16) being fixed on above cabinet, the other side is mounted on the bearing (8) of the bottom of box.
4. wear hardness comparative test device according to claim 1, it is characterised in that: be machined on rubber pad (10) with
The consistent decorative pattern of tire, rubber pad (10) is using semicircle and is relatively set into circle in the two sides up and down of shaft respectively.
5. wear hardness comparative test device according to claim 1, it is characterised in that: the spray head (14) and sink
(7) it is arranged in above and below the test specimen to be measured of lower section, the moisture that sink (7) is collected is discharged by drainpipe.
6. wear hardness comparative test device according to claim 1, it is characterised in that: the shaft from gear (11)
Upper and lower ends are equipped with displacement sensor (15), set displacement when test specimen to be measured (12) and rubber pad (10) contact as zero.
7. a kind of test method based on wear hardness comparative test device described in any one of claim 1-6, feature
It is, comprising the following steps: two test specimens (12) to be measured are individually positioned in the telescopic card slot (9) on test specimen support frame (6)
It is interior, by adjusting the telescopic device (13) being fixed on test specimen support frame (6), make surface and the rubber pad of test specimen to be measured (12)
(10) it is in contact, contact condition is detected by being mounted on from the displacement sensor (15) of rotary gear shaft end；Motor (16) drives
Master gear (3) rotation, master gear (3) drive from gear (11) and rotate, fixed on the rotating shaft from gear (11), and rotation axis turns
It is dynamic to drive rubber pad (10) rotation, it realizes and rubs simultaneously to the surface of two test specimens (12) to be measured.
8. test method according to claim 7, it is characterised in that: adjust test temperature by temperature control device (17).
9. test method according to claim 7, it is characterised in that: utilize pendulum type friction instrument or people after abrasion test
The coefficient of friction and construction depth of work sand patch method test surface of test piece or the texture variations that surface of test piece is tested using 3D microscope.
10. test method according to claim 7, it is characterised in that: with spray head (14) that test specimen to be measured (12) surface is wet
Profit, the situation of change of contrast specimen changing rule of coefficient of friction and surface texture under the conditions of dry tack free and surface wettability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581544.6A CN109632550B (en) | 2018-12-24 | 2018-12-24 | Abrasion performance contrast test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581544.6A CN109632550B (en) | 2018-12-24 | 2018-12-24 | Abrasion performance contrast test device and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109632550A true CN109632550A (en) | 2019-04-16 |
| CN109632550B CN109632550B (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811581544.6A Expired - Fee Related CN109632550B (en) | 2018-12-24 | 2018-12-24 | Abrasion performance contrast test device and test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238979A (en) * | 2020-01-20 | 2020-06-05 | 山西省交通科技研发有限公司 | Method for evaluating and determining skid resistance and wear resistance of stone for roads |
| CN112504889A (en) * | 2020-11-05 | 2021-03-16 | Oppo广东移动通信有限公司 | Wear resistance testing device |
| CN113155646A (en) * | 2021-03-26 | 2021-07-23 | 中国飞机强度研究所 | Dynamic impact test device and test method capable of replacing aviation seat belt |
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| CN113155646A (en) * | 2021-03-26 | 2021-07-23 | 中国飞机强度研究所 | Dynamic impact test device and test method capable of replacing aviation seat belt |
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