CN214096912U - Multi-field coupling asphalt pavement accelerated wear device - Google Patents
Multi-field coupling asphalt pavement accelerated wear device Download PDFInfo
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- CN214096912U CN214096912U CN202120088884.6U CN202120088884U CN214096912U CN 214096912 U CN214096912 U CN 214096912U CN 202120088884 U CN202120088884 U CN 202120088884U CN 214096912 U CN214096912 U CN 214096912U
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Abstract
The utility model relates to a multi-field coupling asphalt pavement accelerated wear device, which comprises a bracket, wherein the upper part of the bracket is provided with two pairs of parallel crossbeams, and the bottom of the bracket is provided with a platform pillar; the top of the platform support is connected with a test mold placing platform through a speed reducer with a mechanical sensor; a test mold is placed on the test mold placing platform; the pressing and rotating speed simulation mechanism is provided with a motor, a pressing wheel, a transmission mechanism and a pressure cylinder, and the pressure and the rotating speed of the pressing wheel are controlled by the multifunctional movable controller when the pressing wheel and the test mold are contacted with each other; the top of the bracket is provided with a sprinkler, the side surface of the bracket is provided with an ultraviolet lamp, the top of the bracket is also provided with a hot air inlet, and the side edge of the bottom of the bracket is provided with a hot air outlet; a plurality of sensors are arranged in the space of the support and are connected with a multifunctional movable controller, so that the detection and control of the pressure of the pressing wheel, the rotating speed of the pressing wheel, the water sprinkling amount and mode of the sprinkler, the ultraviolet light intensity of the ultraviolet lamp and the temperature of hot air are realized, and the simulation and evaluation effects of the abrasion resistance of the pavement under the comprehensive environmental conditions are realized.
Description
Technical Field
The utility model relates to a road material's test equipment or instrument field, concretely relates to bituminous paving of many field couplings wearing and tearing device with higher speed.
Background
With the rapid development of the economy and road traffic industry in China, the automobile holding capacity is continuously improved, the living standard of people is continuously improved, and the society has higher requirements on the service life and the use comfort of roads. The asphalt pavement is comprehensively affected by conditions such as traffic, climate and the like, so that pavement diseases are gradually generated after the pavement is used. The axle load effort and the automobile drive that different vehicles pass the production are to the frictional force that the road surface produced for the wearing and tearing that gathers materials of certain degree appear in the road surface layer, when road surface wearing and tearing degree increases, can reduce the cling compound performance on road surface layer, make vehicle braking distance increase, influence the driving safety of vehicle. Meanwhile, considering that the temperature, the humidity and the ultraviolet intensity of different areas have difference, the environmental factors can influence the cohesiveness among the pavement surface layer materials, and the pavement abrasion is accelerated. Therefore, in order to design an asphalt mixture meeting the use requirement of the road surface by combining the above factors, it is necessary to evaluate the abrasion resistance of the asphalt mixture, and in order to improve the accuracy of the evaluation of the abrasion resistance, it is necessary to consider the combined influence of the pressure and the friction driving force generated by different vehicle types on the road surface, the number of different vehicle types and the external environmental factors. However, an effective accelerated wear device for evaluating the abrasion resistance of the surface layer of the road surface is still lacking.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a bituminous paving of many field couplings wearing and tearing device with higher speed. The device can simulate the change rule of the road surface abrasion under the conditions of bearing different loads and driving friction force when the road surface is under the conditions of different temperatures, humidity and ultraviolet light intensities, and evaluate the abrasion resistance and the durability of the road surface under the comprehensive environmental condition, thereby being beneficial to researching the long-term intensity and the change rule of the abrasion of the road surface.
In order to solve the technical problem, the utility model provides a bituminous paving of many field couplings wearing and tearing device with higher speed, include:
the upper part of the bracket is provided with two pairs of parallel cross beams, and the bottom of the bracket is provided with a platform pillar;
the top of the platform support is connected with a test mold placing platform through a speed reducer with a mechanical sensor;
a test mold is placed on the test mold placing platform;
the pressure application rotating speed simulation mechanism is fixedly connected with the cross beam;
the pressing and rotating speed simulation mechanism is provided with a motor, a pressing wheel, a transmission mechanism and a pressure cylinder, the pressing wheel can be contacted with the test mold through proper adjustment, and the pressing wheel and the test mold are connected with the multifunctional movable controller to control the pressure and the rotating speed of the pressing wheel during contact;
the top of the bracket is provided with an adjustable sprinkler, the side surface of the bracket is provided with an adjustable ultraviolet lamp, the top of the bracket is also provided with an adjustable hot air inlet, and the side edge of the bottom of the bracket is provided with an adjustable hot air outlet;
the multifunctional movable controller is connected with the sensor, and the pressure of the pressing wheel, the rotating speed of the pressing wheel, the water spraying amount and mode of the sprinkler, the ultraviolet light intensity of the ultraviolet lamp and the temperature of hot air are conveniently detected and controlled, so that the abrasion resistance and the durability simulation evaluation effect of the road surface under the comprehensive environmental condition are realized.
Furthermore, the pressure application rotating speed simulation mechanism also comprises a pressure bearing frame, a guide rail, a sliding wheel and a pressure cylinder supporting frame;
the pressure cylinder support frame is fixedly connected with the cross beam, and the pressure application rotating speed simulation mechanism is fixed on the cross beam;
the guide rail is arranged on the inner side of the pressure cylinder support frame;
the supporting frame and a shaft of the pressure cylinder are fixed with each other, and the bottom of the pressure cylinder is connected and fixed with the pressure bearing frame;
the pressure bearing frame is contacted with the bottom of the pressure cylinder support frame through the sliding wheel, and the sliding wheel can slide up and down on the guide rail;
the pressure bearing frame is internally provided with a motor, the lower part of the pressure bearing frame is provided with the pinch roller, and the motor is connected with the pinch roller through the transmission mechanism.
Preferably, the transmission mechanism adopts chain, gear or belt transmission.
Further, the test mould comprises a test mould accessory and a fixing nail;
the test mould accessory is used for adjusting the height of the test mould, and the fixing nails are used for tightly fixing the test mould and the test mould placing platform.
Furthermore, a waterproof shell is arranged outside the pressure application rotating speed simulation mechanism and used for protecting parts.
Preferably, the press wheel is a common vehicle tire, including a car tire or a truck tire.
Further, the speed reducer can be connected with the multifunctional movable controller through a mechanical sensor arranged on the speed reducer, the number of rotation turns of the test mold placing platform is recorded through connection of the movable controller, and changes of force before and after speed reduction are measured.
The utility model has the advantages that:
1. the passenger-cargo tires in practice are adopted for testing, so that the actual vehicle running contact can be simulated really, and meanwhile, the friction force between the tires and the road surface is measured and calculated through the speed reducer with the mechanical sensor, so that the difference of the friction force of the surface layer of the road surface when the vehicle runs on the road sections with different gradients is simulated, and the simulation is more real.
2. The comprehensive influence of vehicle and environmental factors is comprehensively considered, the simulation result is more fit with the reality, and the reliability of the data conclusion is higher.
3. The requirements of different geographical environment and climate characteristics of China on the asphalt mixture are different, and the device can simulate the abrasion change of the surface layer of the pavement under different temperatures, humidity, rainfall intensity and ultraviolet intensity, is suitable for the requirements of different regions in China, and has universal applicability in the field of test equipment or instruments of road materials.
Drawings
FIG. 1 is a schematic structural diagram of a multi-field coupled accelerated wear device for asphalt pavement;
FIG. 2 is a schematic left side view of a multi-field coupled accelerated wear assembly for asphalt pavement;
FIG. 3 is a schematic diagram of a top view of a multi-field coupled accelerated wear assembly for asphalt pavement;
FIG. 4 is a three-view drawing of a trial mold;
fig. 5 is a schematic structural view of a trial mold attachment.
1. A frame; 2. a platform support; 3. a speed reducer; 4. a test mold placing platform; 5. testing a mold; 6. a pinch roller; 7. A transmission mechanism; 8. a pressure bearing frame; 9. a guide rail; 10. a sliding wheel; 11. a pressure cylinder; 12. a pressure cylinder support frame; 13. a sprinkler; 14. a hot air inlet; 15. a hot air outlet; 16. an ultraviolet lamp; 17. a waterproof housing; 51. fitting a mold; 52. and (5) fixing the nail.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, a multi-field coupled asphalt pavement accelerated wear device comprises:
the upper part of the bracket 1 is provided with two pairs of parallel beams, and the bottom of the bracket 1 is provided with a platform pillar 2;
the top of the platform support 2 is connected with a test mould placing platform 4 through a speed reducer 3 with a mechanical sensor;
the friction force between the tire and the road surface is measured and calculated through the speed reducer with the mechanical sensor, the difference of the friction force of the surface layer of the road surface when the vehicle runs on the road sections with different gradients is simulated, and the simulation is more real.
A test mold 5 is placed on the test mold placing platform 4;
a pressure application rotating speed simulation mechanism fixedly connected with the cross beam;
the pressing and rotating speed simulation mechanism is provided with a motor, a pressing wheel 6, a transmission mechanism 7 and a pressure cylinder 11, the motor is connected with the pressing wheel 6 through the transmission mechanism 7, the pressing wheel 6 and the test mold 5 can be contacted with each other through proper adjustment, and the pressing and rotating speed simulation mechanism is connected with a multifunctional movable controller to control the pressure and the rotating speed of the pressing wheel during the contact;
the top of the bracket 1 is provided with an adjustable sprinkler 13, the side surface is provided with an adjustable ultraviolet lamp 16, the top is also provided with an adjustable hot air inlet 14, and the side edge of the bottom is provided with an adjustable hot air outlet 15;
a plurality of sensors are arranged in the space of the support 1 and are connected with a multifunctional movable controller, so that the pressure of the pressing wheel, the rotating speed of the pressing wheel, the water spraying amount and mode of the sprinkler, the ultraviolet light intensity of the ultraviolet lamp and the temperature of hot air can be conveniently detected and controlled, and the abrasion resistance and durability simulation evaluation effect of the road surface under the comprehensive environmental condition can be realized.
Specifically, the device can simulate the changes of the abrasion of the surface layer of the pavement under different temperatures, humidity, rainfall intensity and ultraviolet intensity, meets the requirements of different areas in China, and has universal applicability in the field of test equipment or instruments of pavement materials.
Specifically, the pressure application rotating speed simulation mechanism further comprises a pressure bearing frame 8, a guide rail 9, a sliding wheel 10 and a pressure cylinder support frame 12;
the pressure cylinder support frame 12 is fixedly connected with the cross beam, and the pressure application rotating speed simulation mechanism is fixed on the cross beam;
the guide rail 9 is arranged on the inner side of the pressure cylinder support frame 12;
the supporting frame 12 and the shaft of the pressure cylinder 11 are mutually fixed, and the bottom of the pressure cylinder 11 is mutually connected and fixed with the pressure bearing frame 8;
the pressure bearing frame 8 is contacted with the bottom of a pressure cylinder support frame 12 through a sliding wheel 10, and the sliding wheel 10 can slide up and down on a guide rail 9;
the inside motor that is equipped with of pressure bearing frame 8 and below are equipped with pinch roller 6, and pinch roller 6 is connected with the motor through drive mechanism 7.
In particular, the transmission mechanism 7 adopts chain, gear or belt transmission.
Specifically, the test mold 5 includes a test mold attachment 51 and a fixing nail 52;
the test mould accessory 51 is used for adjusting the height of the test mould, and the fixing nails 52 are used for tightly fixing the test mould 5 and the test mould placing platform 4.
Specifically, a waterproof shell 17 is arranged outside the pressure application rotating speed simulation mechanism and used for protecting parts.
In particular, the press wheel 6 is a conventional vehicle tire, including a car tire or a truck tire.
Specifically, the speed reducer 3 can be connected with a multifunctional movable controller through a mechanical sensor arranged on the speed reducer, the number of rotation turns of the test mold placing platform 4 is recorded through the movable controller, and the change of force before and after speed reduction is measured.
More specifically, before use, the test mold 5 needs to be removed from the test mold placement platform 4 in advance, the mass m1 of the removed test mold 5 is weighed, the asphalt mixture is paved in the test mold 5 for compaction, residues of the compacted asphalt mixture are cleaned, the mass m2 of the test mold 5 with the compacted asphalt mixture is weighed, and after the test piece is preliminarily maintained, the test mold 5 is fixed on the test mold placement platform 4 by using the fixing nails 52. The power of the multifunctional movable controller is switched on, the factors of temperature, humidity, rainfall and ultraviolet rays in the rack are adjusted according to requirements, after preliminary maintenance is completed, the pressure of the cylinder is further adjusted through the multifunctional movable controller, so that the pressure-bearing frame is lowered to the pressure wheel to be in mutual contact with the surface of a test sample in the test mold 5 and reach the design pressure, the rotating speed of the motor and the deceleration force in the speed reducer with the mechanical sensor are controlled to be tested, and meanwhile, the number of rotating circles of the test mold placing platform 4 is recorded by the multifunctional movable controller. After a certain number of times of abrasion, closing the environment control device, removing the pressure in the pressure cylinder, braking through a speed reducer with a mechanical sensor until the pinch roller and the test mold placing platform 4 completely stop rotating, opening the equipment door, taking out the test mold 5, measuring indexes such as abrasion depth, friction coefficient and the like, weighing the mass m3 in the test mold 5 with the compacted asphalt mixture after the test piece is completely dried, and obtaining abrasion loss through calculation and the action number of the pinch roller. Index changes before and after the asphalt mixture is abraded under different influence factors can be obtained by adjusting pressure, environmental factors, the size of the pinch roller, the rotating speed of the pinch roller and the like in subsequent tests, so that the abrasion resistance of different asphalt mixtures can be evaluated, and directional design guidance can be provided for pavements in different traffic volumes and climatic environments.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The utility model provides a bituminous paving of many field couplings accelerates wearing and tearing device which characterized in that:
the method comprises the following steps: the device comprises a support (1), wherein two pairs of parallel cross beams are arranged at the upper part of the support (1), and a platform support (2) is arranged at the bottom of the support;
the top of the platform support column (2) is connected with a test mold placing platform (4) through a speed reducer (3) with a mechanical sensor;
a test mold (5) is arranged on the test mold placing platform (4);
the pressure application rotating speed simulation mechanism is fixedly connected with the cross beam;
the pressing and rotating speed simulation mechanism is provided with a motor, a pressing wheel (6), a transmission mechanism (7) and a pressure cylinder (11), the motor is connected with the pressing wheel (6) through the transmission mechanism (7), the pressing wheel (6) and the test mold (5) can be contacted with each other by properly adjusting the pressure cylinder (11), and the pressure and the rotating speed of the pressing wheel during the contact are controlled by connecting the multifunctional movable controller;
the top of the bracket (1) is provided with an adjustable sprinkler (13), the side surface is provided with an adjustable ultraviolet lamp (16), the top is also provided with an adjustable hot air inlet (14), and the side edge of the bottom is provided with an adjustable hot air outlet (15);
the multifunctional movable detection device is characterized in that a plurality of sensors are arranged in the space of the support (1) and connected with the multifunctional movable controller, so that the pressure of the pressing wheel, the rotating speed of the pressing wheel, the water sprinkling amount and mode of the sprinkler, the ultraviolet light intensity of the ultraviolet lamp and the temperature of hot air can be conveniently detected and controlled, and the abrasion resistance and durability simulation evaluation effects of the pavement under the comprehensive environmental condition can be realized.
2. The multi-field coupled accelerated wear device for asphalt pavement of claim 1, wherein:
the pressing rotating speed simulation mechanism also comprises a pressure bearing frame (8), a guide rail (9), a sliding wheel (10) and a pressure cylinder support frame (12);
the pressure cylinder support frame (12) is fixedly connected with the cross beam, and the pressure application rotating speed simulation mechanism is fixed on the cross beam;
the guide rail (9) is arranged on the inner side of the pressure cylinder support frame (12);
the support frame (12) and the shaft of the pressure cylinder (11) are fixed with each other, and the bottom of the pressure cylinder (11) and the pressure bearing frame (8) are connected and fixed with each other;
the pressure bearing frame (8) is in mutual contact with the bottom of the pressure cylinder support frame (12) through the sliding wheel (10), and the sliding wheel (10) can slide up and down on the guide rail (9);
the pressing frame (8) is internally provided with a motor and is provided with the pressing wheel (6) below, and the pressing wheel (6) is connected with the motor through the transmission mechanism (7).
3. A multi-field coupled accelerated wear device for asphalt pavement according to claim 1 or 2, wherein:
the transmission mechanism (7) adopts chain, gear or belt transmission.
4. The multi-field coupled accelerated wear device for asphalt pavement of claim 1, wherein:
the test mould (5) comprises a test mould accessory (51) and a fixing nail (52);
the test mould accessory (51) is used for adjusting the height of the test mould, and the fixing nail (52) is used for tightly fixing the test mould (5) and the test mould placing platform (4).
5. The multi-field coupled accelerated wear device for asphalt pavement of claim 1, wherein:
and a waterproof shell (17) is arranged outside the pressure application rotating speed simulation mechanism and used for protecting parts.
6. The multi-field coupled accelerated wear device for asphalt pavement of claim 1, wherein:
the pinch roller (6) is a common vehicle tire, including a car tire or a truck tire.
7. The multi-field coupled accelerated wear device for asphalt pavement of claim 1, wherein:
the speed reducer (3) can be connected with the multifunctional movable controller through a mechanical sensor arranged on the speed reducer, the number of rotating turns of the test mold placing platform (4) is recorded through the movable controller, and the change of force before and after speed reduction is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120088884.6U CN214096912U (en) | 2021-01-13 | 2021-01-13 | Multi-field coupling asphalt pavement accelerated wear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120088884.6U CN214096912U (en) | 2021-01-13 | 2021-01-13 | Multi-field coupling asphalt pavement accelerated wear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214096912U true CN214096912U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120088884.6U Active CN214096912U (en) | 2021-01-13 | 2021-01-13 | Multi-field coupling asphalt pavement accelerated wear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214096912U (en) |
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2021
- 2021-01-13 CN CN202120088884.6U patent/CN214096912U/en active Active
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