CN110823659A - Vibration wheel-grinding forming instrument for asphalt mixture track test piece and using method thereof - Google Patents
Vibration wheel-grinding forming instrument for asphalt mixture track test piece and using method thereof Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 93
- 239000000203 mixture Substances 0.000 title claims abstract description 58
- 239000010426 asphalt Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000000227 grinding Methods 0.000 title abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 202
- 230000033001 locomotion Effects 0.000 claims description 40
- 238000005056 compaction Methods 0.000 claims description 15
- 230000001174 ascending effect Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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Abstract
The invention relates to a vibration wheel-grinding forming instrument for an asphalt mixture rut test piece and a using method thereof, belonging to the technical field of engineering machinery. The vibration rolling system mainly comprises a base, a moving trolley, a rolling wheel and a vibration motor, wherein a track is arranged at the top of the base, the bottom of the moving trolley is connected with a dowel bar, a support is arranged on the side edge of the base, a support top end is arranged on a hydraulic dowel bar, the rolling wheel is in power connection with a hydraulic force loading rod, and the vibration motor is arranged at the top of the rolling wheel; the control system comprises a box body, a vibration switch, a moving trolley driving switch, a rolling wheel lifting switch and a parameter input unit, wherein a hydraulic pressure force loading rod is connected with an oil pump, the oil pump is connected with the oil pump switch, the moving trolley driving switch is electrically connected with a driving device, a vibration motor is electrically connected with the vibration switch, the rolling wheel lifting switch is electrically connected with a rolling wheel, and the vibration switch, the rolling wheel lifting switch and a hydraulic force transmission rod are respectively electrically connected with the parameter input unit.
Description
Technical Field
The invention relates to a vibration wheel-grinding forming instrument for an asphalt mixture rut test piece and a using method thereof, belonging to the technical field of engineering machinery.
Background
In recent years, the highway traffic construction industry in China is developed at a high speed, so that asphalt pavements are applied on a large scale, a track forming instrument is frequently used at present to form test pieces through reciprocating rolling, and the high-temperature stability of an asphalt mixture is evaluated by adopting the dynamic stability index of the track testing instrument. However, because the asphalt mixture contains more aggregates, the edges and corners of coarse aggregate particles are strong, and the internal friction angle is large, the embedding and extruding capacity among the aggregates cannot be effectively improved by adopting a conventional static pressure wheel milling method, the crushing of the edges and corners of the aggregates is easily caused by simply adopting a method for increasing the rolling times, and meanwhile, the vibration rolling of a steel wheel road roller on a construction site cannot be simulated by adopting an indoor static pressure wheel milling method, so that the density of an indoor static pressure formed rut test piece is smaller than that of the rut test piece on the site, and the actual performance of the site pavement cannot be truly reflected.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a vibrating wheel-grinding forming instrument for an asphalt mixture rut test piece and a using method thereof, so that the internal gap of the mixture is reduced, the internal compactness of the mixture is improved, the working process of vibrating and grinding the asphalt mixture by a steel wheel can be simulated really, the test piece formed indoors conforms to the reality, and the actual performance of a road surface is reflected objectively.
In order to solve the technical problems, the invention provides a vibration wheel-rolling forming instrument for an asphalt mixture rut test piece, which comprises a vibration rolling system and a control system, wherein the vibration rolling system mainly comprises a base 1, a moving trolley 2, a rolling wheel 3 and a vibration motor 4, the top of the base 1 is provided with a track, the moving trolley 2 reciprocates on the track, the bottom of the moving trolley 2 is connected with a dowel bar of a driving device, the side edge of the base 1 is provided with a support 5, a hydraulic dowel bar 6 is provided with the top end of the support 5, the rolling wheel 3 is in power connection with a hydraulic force loading rod of the hydraulic dowel bar 6, and the top of the rolling wheel 3 is provided with the vibration motor 4; the control system comprises a box body 13, a vibration switch 7, a moving trolley driving switch 8, a rolling wheel lifting switch 9 and a parameter input unit 10, wherein a hydraulic force loading rod of a hydraulic dowel bar 6 is connected with an oil pump 12, the oil pump 12 is connected with an oil pump switch 11, the moving trolley driving switch 8 is electrically connected with a driving device, a vibration motor 4 is electrically connected with the vibration switch 7, the rolling wheel lifting switch 9 is electrically connected with a rolling wheel 3, the vibration switch 7, the rolling wheel lifting switch 9 and the hydraulic dowel bar 6 are respectively electrically connected with the parameter input unit 10, an electronic circuit board which is electrically connected with a controller 14 and a controller is arranged in the box body 13, and the vibration switch 7, the moving trolley driving switch 8, the rolling wheel lifting switch 9, the oil pump switch 11 and the parameter input unit 10 are respectively electrically connected with the controller 14.
And a temperature heating system and a temperature sensor are arranged on the rolling wheel 3.
And a rubber shock isolator is arranged between the vibration motor 4 and the rolling wheel 3.
The parameter input unit 10 of the invention is designed as a touch screen input and is used for setting the travelling speed of a moving trolley, the load of a rolling wheel line, the heating temperature of the bottom of the rolling wheel, the rolling times, the vibration frequency and the vibration force, and a rolling wheel lifting switch is used for controlling the lifting of the rolling wheel.
The use method of the vibration wheel-grinding forming instrument for the asphalt mixture rut test piece comprises the following steps:
A. and (3) switching on a power supply of the control system to check whether the equipment is normal, and inputting test parameters in advance in a parameter input unit: the traveling speed of the moving trolley is 0-6 times/min, the rolling wheel line load is 300N/cm, the rolling temperature is 0-150 ℃, the rolling frequency is that the rolling wheel is pressed back and forth for 2 times and then 12 times, the vibration frequency is 0-70 Hz, the vibration force is designed to be 0-2 kN, then the rolling wheel is heated to the target temperature of 100-110 ℃, and meanwhile, an oil pump switch is triggered to start an oil pump, and the oil pump is preheated for 10 min;
B. preheating a rutting test mold in an oven at 100-110 ℃ for 60-70 min, loading the hot asphalt mixture into the rutting test mold, paving paper on the bottom, the periphery of the inner side and the top of the mixture for isolation, and fixing the rutting test mold on a moving trolley 2;
C. starting a descending button of a rolling wheel lifting switch 9, and descending the rolling wheel 3 to press the mixture;
D. starting a motion button of a motion trolley driving switch 8, enabling a motion trolley 2 to do reciprocating motion, rolling in one direction for two reciprocating motions, unloading the operation parameter input unit 10, starting an ascending button of a rolling wheel lifting switch 9, changing a rut test mould by 180 degrees, starting a descending button of the rolling wheel lifting switch 9, putting down a rolling wheel to press a mixture, starting a vibration button of a vibration switch 7 and a motion button of the motion trolley driving switch 8, closing the vibration switch and the motion trolley driving switch when the vibration wheel is rolled to a target compaction degree, and finishing rolling;
E. if the rolling is performed in one direction for 2 times, the vibration and the wheel rolling are performed in the other direction for 12 times, the compaction degree of the mixture test piece does not meet the requirement, the second rolling time can be set in the parameter input unit again, the step BCD is repeated until the rolling is performed to 100 +/-1% of the Marshall standard compaction degree, and the rolling is finished;
F. after rolling is finished, starting an ascending button of a rolling wheel lifting switch 9 to lift the rolling wheel 3, then starting a closing button of an oil pump switch, taking down a track testing mold and a test piece, removing paper on the surface of the asphalt mixture test piece, and using label paper to mark test piece information and rolling direction on the surface of the test piece;
G. and cooling the compacted test piece at room temperature for more than 12 hours to perform a rutting test.
Compared with the prior art, the invention has the following advantages:
(1) the vibrating wheel-grinding forming instrument for the asphalt mixture rut test piece is simple in structure, easy to operate in installation and finished piece processes, low in input cost, small in occupied space and high in working efficiency, and can be modified to the existing rut forming equipment.
(2) This bituminous mixture rut test piece vibration wheel rolls former parameter adjustment is simple, can be to the travelling car walking speed, roll wheel line load, roll the temperature, roll the number of times, vibration frequency and vibrational force design, and set up control system can accurate control travelling car walking speed, roll wheel line load, roll the temperature, roll the number of times, vibration frequency, the vibration power, roll wheel lift and vibrating motor, design vibration system simultaneously and roll system separation installation, control system does not receive the too big influence of vibration power when rolling system operation, guarantee the life of equipment.
(3) When the rut test piece vibrating wheel-grinding forming instrument forms a test piece, the mixture particles are continuously moved, rearranged and mutually embedded and extruded under the vibrating and grinding action, so that the internal gap of the mixture is reduced, the internal compactness of the mixture is improved, the working process that the asphalt mixture is vibrated and ground by the steel wheel can be really simulated, the indoor formed test piece is matched with the actual test piece, and the actual performance of the road surface is objectively reflected.
Drawings
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is a side view of the present invention.
FIG. 3 is a schematic diagram of a control circuit according to the present invention.
In the figure: the device comprises a base, a moving trolley, a rolling wheel 3, a vibrating motor 4, a support 5, a hydraulic dowel bar 6, a vibrating switch 7, a moving trolley driving switch 8, a rolling wheel lifting switch 9, a parameter input unit 10, an oil pump switch 11, an oil pump 12, a box 13 and a controller 14.
Detailed Description
The following detailed description of the embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein the technology and products not shown in the embodiments are all conventional products available in the art or commercially.
Example 1: as shown in fig. 1 to 3, the vibrating wheel-rolling forming instrument for the asphalt mixture rut test piece comprises a vibrating rolling system and a control system, wherein the vibrating rolling system mainly comprises a base 1, a moving trolley 2, a rolling wheel 3 and a vibrating motor 4, a track is arranged at the top of the base 1, the moving trolley 2 reciprocates on the track, the bottom of the moving trolley 2 is connected with a dowel bar of a driving device, a support 5 is arranged at the side edge of the base 1, a hydraulic dowel bar 6 is provided with the top end of the support 5, the rolling wheel 3 is in power connection with a hydraulic force loading rod of the hydraulic dowel bar 6, and the vibrating motor 4 is arranged at the top of the rolling wheel 3; the control system comprises a box body 13, a vibration switch 7, a moving trolley driving switch 8, a rolling wheel lifting switch 9 and a parameter input unit 10, wherein a hydraulic force loading rod of a hydraulic dowel bar 6 is connected with an oil pump 12, the oil pump 12 is connected with an oil pump switch 11, the moving trolley driving switch 8 is electrically connected with a driving device, a vibration motor 4 is electrically connected with the vibration switch 7, the rolling wheel lifting switch 9 is electrically connected with a rolling wheel 3, the vibration switch 7, the rolling wheel lifting switch 9 and the hydraulic dowel bar 6 are respectively electrically connected with the parameter input unit 10, an electronic circuit board which is electrically connected with a controller 14 and a controller is arranged in the box body 13, and the vibration switch 7, the moving trolley driving switch 8, the rolling wheel lifting switch 9, the oil pump switch 11 and the parameter input unit 10 are respectively electrically connected with the controller 14. The rolling wheel 3 is provided with a temperature heating system and a temperature sensor. A rubber shock isolator is arranged between the vibrating motor 4 and the rolling wheel 3.
The parameter input unit 10 of the invention is designed as a touch screen input and is used for setting the travelling speed of a moving trolley, the load of a rolling wheel line, the heating temperature of the bottom of the rolling wheel, the rolling times, the vibration frequency and the vibration force, and a rolling wheel lifting switch is used for controlling the lifting of the rolling wheel.
The use method of the vibration wheel-grinding forming instrument for the asphalt mixture rut test piece comprises the following steps:
A. and (3) switching on a power supply of the control system to check whether the equipment is normal, and inputting test parameters in advance in a parameter input unit: the traveling speed of the moving trolley is 6 times/min, the load of a rolling wheel line is 300N/cm, the rolling temperature is 150 ℃, the rolling frequency is that the rolling wheel line is pressed back and forth for 2 times and then 12 times, the vibration frequency is 70Hz, the vibration force is designed for 2kN, then the rolling wheel is heated to the target temperature of 110 ℃, and simultaneously an oil pump switch is triggered to start an oil pump for preheating for 10 min;
B. preheating the rutting test mold in an oven at 110 ℃ for 60min, loading the hot asphalt mixture into the rutting test mold, paving paper on the bottom, the periphery of the inner side and the top of the mixture for isolation, and placing the rutting test mold on a moving trolley 2 for fixation;
C. starting a descending button of a rolling wheel lifting switch 9, and descending the rolling wheel 3 to press the mixture;
D. starting a motion button of a motion trolley driving switch 8, enabling a motion trolley 2 to do reciprocating motion, rolling in one direction for two reciprocating motions, unloading the operation parameter input unit 10, starting an ascending button of a rolling wheel lifting switch 9, changing a rut test mould by 180 degrees, starting a descending button of the rolling wheel lifting switch 9, putting down a rolling wheel to press a mixture, starting a vibration button of a vibration switch 7 and a motion button of the motion trolley driving switch 8, closing the vibration switch and the motion trolley driving switch when the vibration wheel is rolled to a target compaction degree, and finishing rolling;
E. if the rolling is performed in one direction for 2 times, the vibration and the wheel rolling are performed in the other direction for 12 times, the compaction degree of the mixture test piece does not meet the requirement, the second rolling time can be set in the parameter input unit again, the step BCD is repeated until the rolling is performed to 100 +/-1% of the Marshall standard compaction degree, and the rolling is finished;
F. after rolling is finished, starting an ascending button of a rolling wheel lifting switch 9 to lift the rolling wheel 3, then starting a closing button of an oil pump switch, taking down a track testing mold and a test piece, removing paper on the surface of the asphalt mixture test piece, and using label paper to mark test piece information and rolling direction on the surface of the test piece;
G. cooling the compacted test piece at room temperature for more than 12h to perform a rutting test
Example 2: as shown in fig. 1 to 3, the vibrating wheel-rolling forming instrument for the asphalt mixture rut test piece comprises a vibrating rolling system and a control system, wherein the vibrating rolling system mainly comprises a base 1, a moving trolley 2, a rolling wheel 3 and a vibrating motor 4, a track is arranged at the top of the base 1, the moving trolley 2 reciprocates on the track, the bottom of the moving trolley 2 is connected with a dowel bar of a driving device, a support 5 is arranged at the side edge of the base 1, a hydraulic dowel bar 6 is provided with the top end of the support 5, the rolling wheel 3 is in power connection with a hydraulic force loading rod of the hydraulic dowel bar 6, and the vibrating motor 4 is arranged at the top of the rolling wheel 3; the control system comprises a box body 13, a vibration switch 7, a moving trolley driving switch 8, a rolling wheel lifting switch 9 and a parameter input unit 10, wherein a hydraulic force loading rod of a hydraulic dowel bar 6 is connected with an oil pump 12, the oil pump 12 is connected with an oil pump switch 11, the moving trolley driving switch 8 is electrically connected with a driving device, a vibration motor 4 is electrically connected with the vibration switch 7, the rolling wheel lifting switch 9 is electrically connected with a rolling wheel 3, the vibration switch 7, the rolling wheel lifting switch 9 and the hydraulic dowel bar 6 are respectively electrically connected with the parameter input unit 10, an electronic circuit board which is electrically connected with a controller 14 and a controller is arranged in the box body 13, and the vibration switch 7, the moving trolley driving switch 8, the rolling wheel lifting switch 9, the oil pump switch 11 and the parameter input unit 10 are respectively electrically connected with the controller 14. The rolling wheel 3 is provided with a temperature heating system and a temperature sensor. A rubber shock isolator is arranged between the vibrating motor 4 and the rolling wheel 3.
The parameter input unit 10 of the invention is designed as a touch screen input and is used for setting the travelling speed of a moving trolley, the load of a rolling wheel line, the heating temperature of the bottom of the rolling wheel, the rolling times, the vibration frequency and the vibration force, and a rolling wheel lifting switch is used for controlling the lifting of the rolling wheel.
The use method of the vibration wheel-grinding forming instrument for the asphalt mixture rut test piece comprises the following steps:
A. and (3) switching on a power supply of the control system to check whether the equipment is normal, and inputting test parameters in advance in a parameter input unit: the traveling speed of a moving trolley is 4 times/min, the load of a rolling wheel line is 300N/cm, the rolling temperature is 100 ℃, the rolling frequency is that the rolling wheel line is pressed back and forth for 2 times and then 12 times, the vibration frequency is 50Hz, the vibration force is designed to be 1kN, then the rolling wheel is heated to the target temperature of 100 ℃, and simultaneously an oil pump switch is triggered to start an oil pump for preheating for 10 min;
B. preheating the rutting test mold in an oven at 100 ℃ for 70min, loading the hot asphalt mixture into the rutting test mold, paving paper on the bottom, the periphery of the inner side and the top of the mixture for isolation, and placing the rutting test mold on a moving trolley 2 for fixation;
C. starting a descending button of a rolling wheel lifting switch 9, and descending the rolling wheel 3 to press the mixture;
D. starting a motion button of a motion trolley driving switch 8, enabling a motion trolley 2 to do reciprocating motion, rolling in one direction for two reciprocating motions, unloading the operation parameter input unit 10, starting an ascending button of a rolling wheel lifting switch 9, changing a rut test mould by 180 degrees, starting a descending button of the rolling wheel lifting switch 9, putting down a rolling wheel to press a mixture, starting a vibration button of a vibration switch 7 and a motion button of the motion trolley driving switch 8, closing the vibration switch and the motion trolley driving switch when the vibration wheel is rolled to a target compaction degree, and finishing rolling;
E. if the rolling is performed in one direction for 2 times, the vibration and the wheel rolling are performed in the other direction for 12 times, the compaction degree of the mixture test piece does not meet the requirement, the second rolling time can be set in the parameter input unit again, the step BCD is repeated until the rolling is performed to 100 +/-1% of the Marshall standard compaction degree, and the rolling is finished;
F. after rolling is finished, starting an ascending button of a rolling wheel lifting switch 9 to lift the rolling wheel 3, then starting a closing button of an oil pump switch, taking down a track testing mold and a test piece, removing paper on the surface of the asphalt mixture test piece, and using label paper to mark test piece information and rolling direction on the surface of the test piece;
G. and cooling the compacted test piece at room temperature for more than 12 hours to perform a rutting test.
Example 3: as shown in fig. 1 to 3, the vibrating wheel-rolling forming instrument for the asphalt mixture rut test piece comprises a vibrating rolling system and a control system, wherein the vibrating rolling system mainly comprises a base 1, a moving trolley 2, a rolling wheel 3 and a vibrating motor 4, a track is arranged at the top of the base 1, the moving trolley 2 reciprocates on the track, the bottom of the moving trolley 2 is connected with a dowel bar of a driving device, a support 5 is arranged at the side edge of the base 1, a hydraulic dowel bar 6 is provided with the top end of the support 5, the rolling wheel 3 is in power connection with a hydraulic force loading rod of the hydraulic dowel bar 6, and the vibrating motor 4 is arranged at the top of the rolling wheel 3; the control system comprises a box body 13, a vibration switch 7, a moving trolley driving switch 8, a rolling wheel lifting switch 9 and a parameter input unit 10, wherein a hydraulic force loading rod of a hydraulic dowel bar 6 is connected with an oil pump 12, the oil pump 12 is connected with an oil pump switch 11, the moving trolley driving switch 8 is electrically connected with a driving device, a vibration motor 4 is electrically connected with the vibration switch 7, the rolling wheel lifting switch 9 is electrically connected with a rolling wheel 3, the vibration switch 7, the rolling wheel lifting switch 9 and the hydraulic dowel bar 6 are respectively electrically connected with the parameter input unit 10, an electronic circuit board which is electrically connected with a controller 14 and a controller is arranged in the box body 13, and the vibration switch 7, the moving trolley driving switch 8, the rolling wheel lifting switch 9, the oil pump switch 11 and the parameter input unit 10 are respectively electrically connected with the controller 14.
The rolling wheel 3 is provided with a temperature heating system and a temperature sensor. A rubber shock isolator is arranged between the vibrating motor 4 and the rolling wheel 3.
The parameter input unit 10 of the invention is designed as a touch screen input and is used for setting the travelling speed of a moving trolley, the load of a rolling wheel line, the heating temperature of the bottom of the rolling wheel, the rolling times, the vibration frequency and the vibration force, and a rolling wheel lifting switch is used for controlling the lifting of the rolling wheel.
The use method of the vibration wheel-grinding forming instrument for the asphalt mixture rut test piece comprises the following steps:
A. and (3) switching on a power supply of the control system to check whether the equipment is normal, and inputting test parameters in advance in a parameter input unit: the traveling speed of the moving trolley is 4 times/min, the load of a rolling wheel line is 300N/cm, the rolling temperature is 80 ℃, the rolling frequency is that the rolling wheel line is firstly pressed back and forth for 2 times and then 12 times, the vibration frequency is 60Hz, the vibration force is designed for 1.5kN, then the rolling wheel is heated to the target temperature of 105 ℃, and simultaneously an oil pump switch is triggered to start an oil pump for preheating for 10 min;
B. preheating the rutting test mold in an oven at 105 ℃ for 65min, loading the hot asphalt mixture into the rutting test mold, paving paper on the bottom, the periphery of the inner side and the top of the mixture for isolation, and placing the rutting test mold on a moving trolley 2 for fixation;
C. starting a descending button of a rolling wheel lifting switch 9, and descending the rolling wheel 3 to press the mixture;
D. starting a motion button of a motion trolley driving switch 8, enabling a motion trolley 2 to do reciprocating motion, rolling in one direction for two reciprocating motions, unloading the operation parameter input unit 10, starting an ascending button of a rolling wheel lifting switch 9, changing a rut test mould by 180 degrees, starting a descending button of the rolling wheel lifting switch 9, putting down a rolling wheel to press a mixture, starting a vibration button of a vibration switch 7 and a motion button of the motion trolley driving switch 8, closing the vibration switch and the motion trolley driving switch when the vibration wheel is rolled to a target compaction degree, and finishing rolling;
E. if the rolling is performed in one direction for 2 times, the vibration and the wheel rolling are performed in the other direction for 12 times, the compaction degree of the mixture test piece does not meet the requirement, the second rolling time can be set in the parameter input unit again, the step BCD is repeated until the rolling is performed to 100 +/-1% of the Marshall standard compaction degree, and the rolling is finished;
F. after rolling is finished, starting an ascending button of a rolling wheel lifting switch 9 to lift the rolling wheel 3, then starting a closing button of an oil pump switch, taking down a track testing mold and a test piece, removing paper on the surface of the asphalt mixture test piece, and using label paper to mark test piece information and rolling direction on the surface of the test piece;
G. and cooling the compacted test piece at room temperature for more than 12 hours to perform a rutting test.
While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an asphalt mixture rut test piece vibration wheel grinds former, rolls system and control system including the vibration, its characterized in that: the vibration rolling system mainly comprises a base (1), a moving trolley (2), a rolling wheel (3) and a vibration motor (4), wherein a track is arranged at the top of the base (1), the moving trolley (2) reciprocates on the track, the bottom of the moving trolley (2) is connected with a dowel bar of a driving device, a support (5) is arranged on the side edge of the base (1), a hydraulic dowel bar (6) is arranged at the top end of the support (5), the rolling wheel (3) is in power connection with a hydraulic force loading rod of the hydraulic dowel bar (6), and the vibration motor (4) is arranged at the top of the rolling wheel (3); the control system comprises a box body (13), a vibration switch (7), a moving trolley driving switch (8), a rolling wheel lifting switch (9) and a parameter input unit (10), wherein a hydraulic force loading rod of a hydraulic dowel bar (6) is connected with an oil pump (12), the oil pump (12) is connected with an oil pump switch (11), the moving trolley driving switch (8) is electrically connected with a driving device, a vibration motor (4) is electrically connected with the vibration switch (7), the rolling wheel lifting switch (9) is electrically connected with a rolling wheel (3), the vibration switch (7), the rolling wheel lifting switch (9) and the hydraulic dowel bar (6) are respectively electrically connected with the parameter input unit (10), an electronic circuit board electrically connected with a controller (14) and the controller is arranged in the box body (13), the vibration switch (7), the moving trolley driving switch (8), the rolling wheel lifting switch (9), The oil pump switch (11) and the parameter input unit (10) are respectively electrically connected with the controller (14).
2. The vibratory wheel-milling forming instrument for the asphalt mixture rut test piece according to claim 1, which is characterized in that: and a temperature heating system and a temperature sensor are arranged on the rolling wheel (3).
3. The vibratory wheel-milling forming instrument for the asphalt mixture rut test piece according to claim 1, which is characterized in that: and a rubber shock isolator is arranged between the vibration motor (4) and the rolling wheel (3).
4. The use method of the asphalt mixture rut test piece vibrating wheel-milling forming instrument of any one of claims 1 to 3 comprises the following steps:
A. and (3) switching on a power supply of the control system to check whether the equipment is normal, and inputting test parameters in advance in a parameter input unit: the traveling speed of the moving trolley is 0-6 times/min, the rolling wheel line load is 300N/cm, the rolling temperature is 0-150 ℃, the rolling frequency is that the rolling wheel is pressed back and forth for 2 times and then 12 times, the vibration frequency is 0-70 Hz, the vibration force is designed to be 0-2 kN, then the rolling wheel is heated to the target temperature of 100-110 ℃, and meanwhile, an oil pump switch is triggered to start an oil pump, and the oil pump is preheated for 10 min;
B. preheating a rutting test mold in an oven at 100-110 ℃ for 60-70 min, loading the hot asphalt mixture into the rutting test mold, paving paper on the bottom, the periphery of the inner side and the top of the mixture for isolation, and fixing the rutting test mold on a moving trolley (2);
C. a descending button of a rolling wheel lifting switch (9) is started, and the rolling wheel (3) descends to press the mixture;
D. starting a motion button of a motion trolley driving switch (8), enabling a motion trolley (2) to do reciprocating motion, rolling for two reciprocating motions in one direction, unloading the operation parameter input unit (10), starting an ascending button of a rolling wheel lifting switch (9), changing a rut test mold by 180 degrees, starting a descending button of the rolling wheel lifting switch (9), putting down a rolling wheel to press the mixture, starting a vibration button of a vibration switch (7) and a motion button of the motion trolley driving switch (8), closing the vibration switch and the motion trolley driving switch when the vibration wheel is rolled to a target compaction degree, and finishing rolling;
E. if the rolling is performed in one direction for 2 times, the vibration and the wheel rolling are performed in the other direction for 12 times, the compaction degree of the mixture test piece does not meet the requirement, the second rolling time can be set in the parameter input unit again, the step BCD is repeated until the rolling is performed to 100 +/-1% of the Marshall standard compaction degree, and the rolling is finished;
F. after rolling is finished, starting an ascending button of a rolling wheel lifting switch (9) to lift a rolling wheel (3), then starting a closing button of an oil pump switch, taking down a track testing mold and a test piece, removing paper on the surface of the asphalt mixture test piece, and using label paper to indicate test piece information and rolling direction on the surface of the test piece;
G. and cooling the compacted test piece at room temperature for more than 12 hours to perform a rutting test.
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