CN111948080A - Device and method for measuring anti-wear performance of aggregate - Google Patents
Device and method for measuring anti-wear performance of aggregate Download PDFInfo
- Publication number
- CN111948080A CN111948080A CN202010864829.1A CN202010864829A CN111948080A CN 111948080 A CN111948080 A CN 111948080A CN 202010864829 A CN202010864829 A CN 202010864829A CN 111948080 A CN111948080 A CN 111948080A
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- aggregate
- grid
- tire
- graticule mesh
- fixed column
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005299 abrasion Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000010426 asphalt Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
-
- 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
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0087—Resistance to crushing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0298—Manufacturing or preparing specimens
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a device and a method for measuring the anti-wear performance of aggregate, belongs to the technical field of road engineering, and solves the problem of poor accuracy of the conventional measuring device. The tire rotating disc type power transmission device comprises a base and a motor, and further comprises a rotating column, fixing columns, a tire rotating disc, a first grid and a second grid, wherein the rotating column is connected to an output shaft of the motor, the tire rotating disc is arranged on the rotating column, the fixing columns are arranged on the base, the first grid is supported above the tire rotating disc through the fixing columns, aggregate is loaded on the first grid, the second grid covers the aggregate, and the upper ends of the fixing columns are connected with locking nuts through threads. The determination method comprises the following steps: fixing the vehicle tyre on the tyre turntable; pouring aggregate on the first grid, covering the second grid on the aggregate, and screwing down the locking nut; adjusting the height of the aggregate by screwing the fixed column to enable the aggregate to be in contact with the vehicle tire; starting the motor, rotating the vehicle tyre and abrading the aggregate. The invention can accurately measure the abrasion resistance of the aggregate.
Description
Technical Field
The invention belongs to the technical field of road engineering, and particularly relates to a device and a method for measuring the antiwear performance of aggregate.
Background
As a main component material of the asphalt pavement, various performances such as the crushing value, the abrasion value and the like of the aggregate have profound influence on the service life of the asphalt pavement. The asphalt pavement is used in a complex environment for a long time, not only influenced by complex natural weather such as rain and snow, but also repeatedly acted by different vehicle loads, the design life of the asphalt pavement is generally longer, the asphalt pavement consisting of aggregates with poor abrasion values is often found to be seriously damaged during the long-term service, if the asphalt pavement is frequently maintained and replaced, the traffic is affected, and the maintenance cost is higher, so that the significance of selecting an aggregate with better abrasion value at the beginning of construction is great, the traditional abrasion value test is carried out by a los Angeles abrasion instrument, steel balls are adopted in the test to act on the aggregates, the hardness of the steel balls is often found in the test process, so that part of the aggregates are collided and crushed in the test, the test result is affected, secondly, the real condition of the aggregates are acted with rubber tires of vehicles in the service process of the road, and the defects of the traditional test are more, the anti-wear performance of the aggregate in practical application cannot be well reflected, and in view of the situation, a device for measuring the anti-wear performance of the aggregate is urgently needed to serve the engineering field.
Disclosure of Invention
The invention aims to provide a device for measuring the anti-wear performance of aggregate, which aims to solve the problem of poor accuracy of the conventional measuring device.
It is another object of the present invention to provide a method for determining the attrition resistance of an aggregate.
The technical scheme of the invention is as follows: the utility model provides a survey device that gathers materials and wear-resistant performance, the on-line screen storage device comprises a base and a motor, the motor is installed on the base, still include the column spinner, the fixed column, the tire carousel, first graticule mesh and second graticule mesh, the column spinner is connected on the output shaft of motor, the tire carousel is established on the column spinner, the fixed column is established on the base, the fixed column is equipped with 3 at least, the fixed column is located tire carousel periphery, first graticule mesh supports in tire carousel top through each fixed column, bear the weight of on the first graticule mesh and gather materials, the second graticule mesh covers on gathering materials, there is lock nut fixed column upper end through threaded connection, lock nut between first graticule.
As a further improvement of the invention, a stop ring is arranged on the fixed column, the first grid and the second grid are both provided with mounting holes corresponding to the positions of the fixed column, the mounting holes of the first grid and the second grid are respectively sleeved on the fixed column, and the first grid is placed on the stop ring.
As a further improvement of the invention, the fixing column is connected with the base through a thread.
As a further improvement of the invention, the tire turntable is provided with bolt holes for mounting tires.
As a further improvement of the present invention, the first mesh and the second mesh are both steel meshes.
A method for determining the antiwear performance of an aggregate, comprising the steps of:
firstly, fixing a vehicle tire on a bolt hole 10 of a tire turntable through a bolt;
step two, correspondingly sleeving the mounting holes 11 on the first grid 4 on the fixing columns 6, placing the first grid 4 on the blocking ring 9, pouring aggregate on the first grid 4, covering the second grid 3 on the aggregate, screwing the locking nut 1 downwards, and locking and fixing the second grid 3 on the aggregate by the locking nut 1;
thirdly, adjusting the relative height between the fixed column 6 and the base 8 by screwing the fixed column, thereby adjusting the height of the aggregate and enabling the aggregate to be in contact with the vehicle tire;
step four, starting the motor 5, wherein the motor 5 drives the tire turntable 2 to rotate, so that the vehicle tire rotates, the vehicle tire and aggregate are abraded, and the aggregate falls off when the particle size of the aggregate is smaller than the aperture of the first grid 4;
step five, after the abrasion time reaches, weighing the dropped aggregate mass and the aggregate mass between the first grid 3 and the second grid 4, and evaluating the abrasion resistance of the aggregate according to the dropped aggregate mass and the aggregate mass between the first grid 3 and the second grid 4.
As a further improvement of the invention, in the third step, the height of the aggregate is adjusted by screwing the fixed column, the load of the vehicle tire on the aggregate can be adjusted, and the abrasion resistance of the aggregate under the action of different vehicle loads is measured.
As a further improvement of the invention, in the fourth step, water is poured into the aggregate, and the abrasion resistance of the aggregate in a humid environment is measured.
The invention has the beneficial effects that: during specific operation, a vehicle tire is fixed on a tire turntable, aggregate is filled between a first grid and a second grid, the vehicle tire is driven by a motor to rotate and rub on the outer surface of the first grid, so that the vehicle tire and the aggregate are abraded, the abrasion condition of the aggregate under the action of vehicle load during road service is truly simulated, the abrasion resistance of the aggregate is accurately measured, and finally the abrasion resistance of the aggregate is evaluated according to the mass of the dropped aggregate and the mass of the aggregate between the first grid and the second grid. The invention has convenient and simple operation and strong practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the tire turntable according to the present invention;
fig. 3 is a schematic structural diagram of a first mesh in the present invention.
In the figure: 1-locking a nut; 2-a tire turntable; 3-a second grid; 4-a first grid; 5, a motor; 6-fixing the column; 7-spin columns; 8-a base; 9-a blocking ring; 10-bolt hole; 11-mounting holes.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, a device for measuring aggregate abrasion resistance, including base 8 and motor 5, motor 5 is installed on base 8, still include column spinner 7, fixed column 6, tire carousel 2, first graticule mesh 4 and second graticule mesh 3, column spinner 7 is connected on the output shaft of motor 5, tire carousel 2 is established on column spinner 7, fixed column 6 is established on base 8, fixed column 6 is equipped with at least 3, fixed column 6 is located tire carousel 2 periphery, first graticule mesh 4 supports above tire carousel 2 through each fixed column 6, bear the weight of aggregate on first graticule mesh 4, second graticule mesh 3 covers on aggregate, fixed column 6 upper end has lock nut 1 through threaded connection, lock through lock nut 1 between first graticule mesh 4 and the second graticule mesh 3.
Be equipped with barrier ring 9 on the fixed column 6, first graticule mesh 4 and second graticule mesh 3 all are equipped with the mounting hole 11 corresponding with fixed column 6 position, and each mounting hole 11 of first graticule mesh 4 and second graticule mesh 3 overlaps respectively on each fixed column 6, and first graticule mesh 4 is placed on barrier ring 9.
The fixing column 6 is connected with the base 8 through threads.
The tire turntable 2 is provided with bolt holes 10 for mounting tires.
The first mesh 4 and the second mesh 3 are both steel meshes.
A method for determining the antiwear performance of an aggregate, comprising the steps of:
firstly, fixing a vehicle tire on a bolt hole 10 of a tire turntable through a bolt;
step two, correspondingly sleeving the mounting holes 11 on the first grid 4 on the fixing columns 6, placing the first grid 4 on the stop ring 9, pouring aggregate on the first grid 4, reserving the aggregate with the particle size larger than the aperture of the first grid 4 on the first grid 4, leaking the edges of the aggregate from the meshes of the first grid 4, covering the second grid 3 on the aggregate, screwing the locking nut 1 downwards, and locking and fixing the second grid 3 on the aggregate by the locking nut 1;
thirdly, adjusting the relative height between the fixed column 6 and the base 8 by screwing the fixed column, thereby adjusting the height of the aggregate and enabling the aggregate to be in contact with the vehicle tire;
step four, starting the motor 5, wherein the motor 5 drives the tire turntable 2 to rotate, so that the vehicle tire rotates, the vehicle tire and aggregate are abraded, and the aggregate falls off when the particle size of the aggregate is smaller than the aperture of the first grid 4;
step five, after the abrasion time reaches, weighing the dropped aggregate mass and the aggregate mass between the first grid 4 and the second grid 3, and evaluating the abrasion resistance of the aggregate according to the dropped aggregate mass and the aggregate mass between the first grid 4 and the second grid 3.
By adjusting the aggregate height, the load of the vehicle tire on the aggregate can be adjusted, and the abrasion resistance of the aggregate under the action of different vehicle loads is measured. By pouring water into the aggregate, the abrasion resistance of the aggregate in a humid environment can be measured.
The invention has simple operation, accurate measurement and flexible use.
Claims (8)
1. The utility model provides a survey device that gathers materials and wear-resisting performance, includes base and motor, the motor is installed on the base, its characterized in that: still include column spinner (7), fixed column (6), tire carousel (2), first graticule mesh (4) and second graticule mesh (3), column spinner (7) are connected on the output shaft of motor (5), establish on column spinner (7) tire carousel (2), establish on base (8) fixed column (6), and fixed column (6) are equipped with 3 at least, and fixed column (6) are located tire carousel (2) periphery, first graticule mesh (4) support in tire carousel (2) top through each fixed column (6), bear the weight of on first graticule mesh (4) and gather materials, second graticule mesh (3) are gathered materials and are covered on, and fixed column (6) upper end has lock nut (1) through threaded connection, locks through lock nut (1) between first graticule mesh (4) and the second graticule mesh (3).
2. The apparatus for determining the antiwear performance of an aggregate according to claim 1, wherein: be equipped with barrier ring (9) on fixed column (6), first graticule mesh (4) and second graticule mesh (3) all are equipped with mounting hole (11) corresponding with fixed column (6) position, and each mounting hole (11) of first graticule mesh (4) and second graticule mesh (3) overlap respectively on each fixed column (6), and first graticule mesh (4) are placed on barrier ring (9).
3. The apparatus for determining the antiwear performance of an aggregate according to claim 2, wherein: the fixing column (6) is connected with the base (8) through threads.
4. An apparatus for determining the antiwear properties of an aggregate according to any one of claims 1 to 3, wherein: the tire turntable (2) is provided with a bolt hole (10) for mounting a tire.
5. The apparatus for determining the antiwear performance of an aggregate according to claim 4, wherein: the first grid (4) and the second grid (3) are both steel grids.
6. A method for measuring the antiwear performance of aggregate is characterized by comprising the following steps:
firstly, fixing a vehicle tire on a bolt hole (10) of a tire turntable through a bolt;
step two, correspondingly sleeving each mounting hole (11) on the first grid (4) on each fixing column (6), placing the first grid (4) on the stop ring (9), pouring aggregate on the first grid (4), covering the second grid (3) on the aggregate, screwing the locking nut (1) downwards, and locking and fixing the second grid (3) on the aggregate by the locking nut (1);
thirdly, adjusting the relative height between the aggregate and the base (8) by screwing the fixing column (6) so as to adjust the aggregate height and enable the aggregate to be in contact with the vehicle tire;
step four, starting a motor (5), wherein the motor (5) drives the tire turntable (2) to rotate, so that the vehicle tire rotates, the vehicle tire and aggregate are abraded, and the aggregate falls off when the particle size of the aggregate is smaller than the aperture of the first grid (4);
and step five, after the abrasion time reaches, weighing the dropped aggregate mass and the aggregate mass between the first grid (4) and the second grid (3), and evaluating the abrasion resistance of the aggregate according to the dropped aggregate mass and the aggregate mass between the first grid (3) and the second grid (4).
7. The method for determining the antiwear performance of an aggregate according to claim 6, wherein: in the third step, the height of the aggregate is adjusted by screwing the fixed column 6, the load of the vehicle tire on the aggregate can be adjusted, and the abrasion resistance of the aggregate under the action of different vehicle loads is measured.
8. A method of determining the antiwear performance of an aggregate according to claim 6 or 7, wherein: and in the fourth step, pouring water into the aggregate, and measuring the abrasion resistance of the aggregate in a humid environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864829.1A CN111948080A (en) | 2020-08-25 | 2020-08-25 | Device and method for measuring anti-wear performance of aggregate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864829.1A CN111948080A (en) | 2020-08-25 | 2020-08-25 | Device and method for measuring anti-wear performance of aggregate |
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| Publication Number | Publication Date |
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| CN111948080A true CN111948080A (en) | 2020-11-17 |
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| CN202010864829.1A Pending CN111948080A (en) | 2020-08-25 | 2020-08-25 | Device and method for measuring anti-wear performance of aggregate |
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2020
- 2020-08-25 CN CN202010864829.1A patent/CN111948080A/en active Pending
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