CN219161861U - Asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device - Google Patents
Asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device Download PDFInfo
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- CN219161861U CN219161861U CN202223311944.XU CN202223311944U CN219161861U CN 219161861 U CN219161861 U CN 219161861U CN 202223311944 U CN202223311944 U CN 202223311944U CN 219161861 U CN219161861 U CN 219161861U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the technical field of pavement detection devices, in particular to an asphalt pavement preventive maintenance extremely-thin finish coat durability evaluation detection device which comprises an upward-retractable steering wheel, an anti-toppling shell, a contact test disc, a motor driving system and an additional load tray. The utility model can evaluate the durability of the ultrathin layer by driving the contact test disc to contact and rub with the cold-laid ultrathin layer road surface such as the fog seal layer, the fine surface, the micro surface and the like, and by mass loss, anti-slip loss and constructional depth loss before and after rubbing, the operation is simple and practical, and the matched detection device has simple and compact integral structure, is economical and practical and is suitable for popularization and application.
Description
Technical Field
The utility model relates to the technical field of pavement detection devices, in particular to a device for evaluating and detecting durability of an extremely thin finish coat for asphalt pavement preventive maintenance.
Background
After the service life of the expressway asphalt pavement is over half, pavement diseases such as anti-slip attenuation, microcracks and the like frequently occur, so that the ultra-thin layer cover surface preventive maintenance process mainly comprising a fog seal layer, a fine anti-slip surface, a micro-surface and the like is gradually implemented in a large scale. However, the process has the quality problems of grain falling, peeling and the like which affect the durability, and at present, no equipment is used for evaluating the durability of the field-implemented ultrathin layer curing process, and the durability of the skid resistance of the field-implemented ultrathin layer curing process cannot be evaluated.
For this reason, an asphalt pavement preventive maintenance extremely thin overcoat durability evaluation detection device is proposed and designed to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide an evaluation and detection device for durability of an extremely thin finish coat for preventing and curing an asphalt pavement, which solves the problem that the durability and the anti-skid property cannot be evaluated due to the fact that particle falling, peeling and the like are affected in an extremely thin finish coat prevention and curing process in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device, includes prevents empting the casing, the steering wheel, contact test disc, motor drive system and additional load tray, the steering wheel is located prevent empting the casing bottom, and with prevent empting the casing articulated, contact test disc locates prevent empting in the casing, motor drive system locates prevent empting the inside at casing top;
the motor driving system is used for providing power for stretching out and drawing back and rotating to do work of the contact test disc, the motor driving system specifically comprises a motor, a dowel bar and a digital display screen, the dowel bar is connected to the motor, the contact test disc comprises a pressure sensor, a loading disc and a rubber gasket, the dowel bar is far away from one end of the motor and is sequentially fixed with the pressure sensor, the loading disc and the rubber gasket, a through hole is formed in the bottom of the anti-toppling shell, and the rubber gasket can move relative to the through hole in a stretching mode under the driving of the motor.
Preferably, the number of the steering wheels is more than 3.
Preferably, the steering wheel is connected with the outer side of the bottom of the anti-toppling shell through a hydraulic rod assembly or an electric push rod.
Preferably, the anti-toppling shell is specifically an anti-toppling ring structure.
Preferably, the anti-toppling ring structure is formed by cementing a steel ring and a rubber ring. The rubber layer can increase the friction force between the rubber layer and the ground during application, and the double-layer structure is more stable.
Preferably, the diameter d of the loading disc and the rubber gasket is more than 15cm.
Preferably, the motor is a hydraulic motor.
Preferably, the hydraulic motor is electrically connected with the digital display screen.
Preferably, the pressure sensor is in communication connection with the digital display screen.
Preferably, the top of the anti-toppling shell is provided with an additional load tray, a loading test block is placed on the additional load tray, and the loading test block generates downward vertical pressure on the anti-toppling shell.
Compared with the prior art, the utility model has the beneficial effects that:
1. the device for evaluating and detecting the durability of the ultra-thin finish coat layer for preventing and curing the asphalt pavement is characterized in that a motor driving system is used for driving a contact test disc to contact with a fog seal layer, a fine surface part, a micro surface part and other cold-paved ultra-thin layer pavement surfaces, the ultra-thin layer durability is evaluated through mass loss, anti-slip loss and constructional depth loss before and after friction, the operation is simple and practical, and the matched detection device is simple and compact in integral structure, economical and practical and suitable for popularization and application.
2. The device for evaluating and detecting the durability of the ultra-thin finish coat layer for preventing and curing the asphalt pavement is provided with the steering wheel with the retraction function, and can easily push the device to walk to a designated position during use, and the steering wheel is retracted upwards during measurement, so that the anti-toppling circular ring structure and the contact test disc are in stable contact with the ground. After the measurement is finished, the steering wheel moves downwards, so that the device is convenient to move.
3. The device for evaluating and detecting the durability of the asphalt pavement preventive maintenance ultrathin finish coat is provided with a hydraulic motor, a dowel bar and a display screen, wherein the display screen can control the hydraulic motor to drive the dowel bar to rotate and stretch, and the display screen can display the grounding pressure of a contact test disc.
4. The device for evaluating and detecting the durability of the asphalt pavement preventive maintenance ultrathin finish coat is provided with a contact test pressure disc, wherein the contact test pressure disc comprises a pressure sensor, a loading disc and a rubber gasket. The pressure sensor can accurately sense the vertical pressure transmitted by the loading block on the additional load tray, and the rubber gasket can be used for pressing and rotating after contacting the ultra-thin layer road surface and rubbing the road surface.
5. The device for evaluating and detecting the durability of the ultra-thin finish coat layer for asphalt pavement preventive maintenance has the advantages that the diameter d of the loading disc and the diameter d of the rubber gasket are more than 15cm, the disc size can be replaced according to different evaluation requirements, and evaluation tests such as anti-slip loss, construction depth loss and the like can be conveniently carried out.
Drawings
FIG. 1 is a plan view of an apparatus for evaluating and detecting durability of an extremely thin pavement for preventive maintenance of asphalt pavement according to the present utility model;
FIG. 2 is a transverse plane view of the device for evaluating and detecting the durability of the asphalt pavement preventive maintenance ultrathin surface layer;
reference numerals illustrate:
the device comprises a 1-motor, a 2-additional load tray, a 3-pressure sensor, a 4-digital display screen, a 5-dowel bar, a 6-rubber gasket, a 7-loading disc, an 8-steering wheel and a 9-anti-toppling ring structure;
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Examples
As shown in fig. 1-2, an evaluation and detection device for durability of an extremely thin finish coat layer of asphalt pavement preventive maintenance comprises an anti-toppling shell, a steering wheel, a contact test disc, a motor driving system and an additional load tray, wherein the steering wheel is arranged at the bottom of the anti-toppling shell, the contact test disc is arranged in the anti-toppling shell, the motor driving system is arranged at the inner side of the top of the anti-toppling shell and is used for providing power for stretching and rotating the contact test disc, the motor driving system specifically comprises a motor 1, a dowel 5 and a digital display screen 4, the motor 1 is connected with the dowel 5, the contact test disc comprises a pressure sensor 3, a loading disc 7 and a rubber gasket 6, the dowel 5 is far away from one end of the motor 1, the pressure sensor 3, the loading disc 7 and the rubber gasket 6 are sequentially fixed, a through hole is arranged at the bottom of the anti-toppling shell, the rubber gasket 6 can stretch and retract relative to the through hole under the driving of the motor, and the additional load tray 2 is arranged at the outer side of the top of the anti-toppling shell.
Specifically, in this embodiment, there are 4 steering wheels 8, steering wheel 8 respectively with electric putter's slide bar part fixed connection, weld the main part of electric putter who connects steering wheel 8 in circular array form to prevent empting the casing outside, through controlling electric putter, can realize steering wheel upward or downward movement, when mobile device, control electric putter, steering wheel 8 downward movement reaches ground, can easily promote the device to arbitrary position, when the device is placed, control electric putter, steering wheel 8 upwards retrieves, prevent empting the steady contact ground in casing bottom.
Specifically, prevent empting casing and be one kind and prevent empting ring structure 9, by steel loop and rubber ring glued constitution, the steel loop can play the effect of support, avoided the device to take place the possibility of empting in the placing process, the rubber ring can increase the frictional force with ground contact, more firm when making the device place, simultaneously, still can play the effect of buffering in the device placing use, can avoid the device in use or placing the in-process, especially when contacting ground, because the effect of gravity causes the device to receive great impact force, cause the damage to the inside precision instrument of device.
Specifically, the rotating shaft of the motor 1 and the dowel 5 are both made of stainless steel materials, the rotating shaft of the motor 1 is provided with an inner hole with threads, one end of the dowel 5 is provided with a bolt matched with the threads of the inner hole, and the rotating shaft of the motor 1 is in spiral connection with the dowel 5; the dowel bar 5 other end is equipped with threaded hole, and pressure sensor 3 one end is equipped with the bolt with hole assorted, is connected dowel bar 5 and pressure sensor 3 with bolted connection's mode, and pressure sensor 3 bottom is equipped with same threaded hole, and loading disc 7 top is equipped with threaded bolt, is connected pressure sensor 3 and loading disc 7 through the bolt, and loading disc 7 bottom is equipped with the draw-in groove, and loading disc 7 bottom is connected through the buckle mode with rubber gasket 6.
Specifically, an installation groove is formed in the device shell, the digital display screen 4 is fixed on the installation groove of the device shell, the motor 1 is electrically connected with the digital display screen 4, and the working states of starting, running and stopping of the motor 1 can be achieved by controlling the digital display screen 4; the pressure sensor 3 is connected with the digital display screen 4 through a signal output line, when pressure exists, the force value is sensed by a pressure sensitive element of the pressure sensor 3 and converted into an electric signal by a signal processing unit, and the electric signal is transmitted to the digital display screen 4 through the signal output line.
Specifically, prevent empting ring structure top and be provided with additional load tray 2, additional load tray passes through welded mode and is connected with the device shell, and additional load tray 2 can be used to place the load test block, and the load test block produces decurrent vertical pressure to preventing empting ring structure 9 for evaluate to select to place corresponding load test block according to different evaluation demands.
Preferably, the diameters d of the loading disc 7 and the rubber gasket 6 are more than 15cm, and when in testing, the loading discs with different sizes can be replaced for testing according to different evaluation requirements.
Preferably, a through hole is formed in the middle of the anti-toppling ring structure 9, the contact test disc is arranged on the anti-toppling ring structure, the rubber gasket 6 can move up and down in the through hole of the anti-toppling ring structure 9, when the device is operated, the rotating shaft of the motor 1 drives the dowel 5 to do telescopic work, in the telescopic process, the loading disc 7 and the rubber gasket 6 move downwards, the rubber gasket moves to the lower surface of the anti-toppling ring structure 9 to contact with the test ground through the through hole, and after the ground is grounded, the motor 1 drives the loading disc 7 and the rubber gasket 6 to rotate through the dowel 5.
The specific operation process is as follows: firstly, an electric push rod is controlled, after a steering wheel 8 is placed downwards, a pushing device is pushed to a test point, the electric push rod is controlled, the steering wheel 8 is recovered upwards, the whole device is slowly lowered while recovering, the whole device is lowered until an anti-toppling circular ring structure 9 completely and stably contacts the test ground, then the device is powered on, a digital display screen 4 is controlled to start a motor 1, the motor 1 drives a dowel bar 5 to do telescopic work firstly, a pressure sensor 3, a loading disc 7 and a rubber gasket 6 move downwards under the driving of the dowel bar 5 until the rubber gasket 6 passes through the middle of the anti-toppling circular ring structure 9 and contacts the ground, then, a corresponding loading test block is placed on an additional loading tray 2 according to the required vertical pressure of the test, after the test block is placed, the digital display screen 4 is controlled, the test time is set, the set time is 5min-15min according to the requirement, after the time setting is completed, the motor 1 is operated, the motor 1 drives the dowel bar 5 and the loading disc 7 to rotate, the rubber gasket 6 carries out rotary friction on the road surface, the friction force value is transmitted to the digital display screen 4 after being processed and analyzed by the pressure sensor 3, after the measurement is completed, the motor 1 finishes operation, after the loading disc 7 and the rubber gasket 6 stop rotating, the loading test block placed on the additional load tray 2 is removed firstly, then the digital display screen 4 is controlled to start the motor 1, the motor 1 drives the dowel bar 5 to do telescopic work, the pressure sensor 3, the loading disc 7 and the rubber gasket 6 move upwards under the driving of the dowel bar 5, when the rubber gasket 6 moves to the upper surface of the anti-toppling ring structure 9, the motor 1 stops working, the digital display screen 4 closes the motor, the electric push rod is operated, the steering wheel 8 moves downwards and stably contacts the ground, and supporting the whole device, removing the device, collecting the falling objects at the friction part of the road surface and on the rubber gasket 6 by using the hairbrush, weighing the falling objects, calculating the mass loss and analyzing, and completing the whole test work.
In summary, by arranging the steering wheel 8, an operator can easily push the device to any position when the device is required to be moved, during measurement, the electric push rod is controlled, the steering wheel 8 is contracted upwards, the anti-toppling ring structure 9 descends and stably contacts with the ground, after measurement is completed, the electric push rod is operated, the steering wheel 8 is placed downwards, the anti-toppling ring structure 9 ascends, and the pushing device leaves the field, and in the measurement process, by arranging the additional load tray 9, a corresponding loading test block can be placed on the additional load tray 9 so as to meet the vertical pressure required by different test requirements; the whole testing process is completed through the operation display screen 4, the testing of the whole device becomes simple and easy, the generated force value is transmitted to the digital display screen 4 after being processed by the pressure sensor 3, the change result of the force value can be visually seen, the evaluation of the ultra-thin layer performance of the asphalt pavement is facilitated, and discs with different sizes can be replaced according to different evaluation requirements, so that the device has higher practicability.
While the basic working principle of the present utility model, the main technical features and advantages of the present utility model have been shown and described in the above embodiments, the present utility model relates to an apparatus for evaluating and detecting durability of an extremely thin finish layer for asphalt pavement preventive maintenance, which is not limited by the above embodiments, and various variations and modifications of the embodiments, which fall within the scope of the present utility model as claimed, and the scope of the present utility model is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides an asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device, includes prevents empting the casing, the steering wheel, contact test disc, motor drive system and additional load tray, its characterized in that, the steering wheel is located prevent empting the casing bottom, and with prevent empting the casing articulated, contact test disc is located prevent empting in the casing, motor drive system locates prevent empting the inside at casing top;
the motor driving system is used for providing power for stretching out and drawing back and rotating to do work of the contact test disc, the motor driving system specifically comprises a motor, a dowel bar and a digital display screen, the dowel bar is connected to the motor, the contact test disc comprises a pressure sensor, a loading disc and a rubber gasket, the dowel bar is far away from one end of the motor and is sequentially fixed with the pressure sensor, the loading disc and the rubber gasket, a through hole is formed in the bottom of the anti-toppling shell, and the rubber gasket can move relative to the through hole in a stretching mode under the driving of the motor.
2. The apparatus for evaluating and detecting durability of a preventive maintenance extremely thin overcoat for an asphalt pavement according to claim 1, wherein said number of steering wheels is 3 or more.
3. The device for evaluating and detecting the durability of an extremely thin finish coat for asphalt pavement preventive maintenance according to claim 1, wherein the steering wheel is connected with the outer side of the bottom of the anti-toppling shell through a hydraulic rod assembly or an electric push rod.
4. The device for evaluating and detecting the durability of an extremely thin finish coat for asphalt pavement preventive maintenance according to claim 1, wherein the anti-toppling shell is specifically an anti-toppling ring structure.
5. The device for evaluating and detecting the durability of an extremely thin finish coat for asphalt pavement preventive maintenance according to claim 4, wherein the anti-toppling ring structure is formed by cementing a steel ring and a rubber ring.
6. The apparatus for evaluating and detecting durability of an asphalt pavement preventive maintenance extremely thin overcoat according to claim 1, wherein the diameter d of the loading disc and the rubber gasket is greater than 15cm.
7. The apparatus for evaluating and detecting durability of a preventive maintenance extremely thin overcoat for an asphalt pavement according to claim 1, wherein the motor is a hydraulic motor.
8. The device for evaluating and detecting the durability of an extremely thin finish coat for asphalt pavement preventive maintenance according to claim 7, wherein the hydraulic motor is electrically connected with the digital display screen.
9. The apparatus for evaluating and detecting durability of an asphalt pavement preventive maintenance ultrathin finish coat according to claim 1, wherein the pressure sensor is in communication connection with the digital display screen.
10. The asphalt pavement preventive maintenance extremely thin finish coat durability evaluation and detection device according to claim 1, wherein the top of the anti-toppling shell is provided with an additional load tray, the additional load tray is provided with a loading test block, and the loading test block generates downward vertical pressure on the anti-toppling shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223311944.XU CN219161861U (en) | 2022-12-09 | 2022-12-09 | Asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223311944.XU CN219161861U (en) | 2022-12-09 | 2022-12-09 | Asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device |
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| Publication Number | Publication Date |
|---|---|
| CN219161861U true CN219161861U (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223311944.XU Active CN219161861U (en) | 2022-12-09 | 2022-12-09 | Asphalt pavement preventive maintenance extremely thin finish coat durability evaluation detection device |
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| CN (1) | CN219161861U (en) |
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- 2022-12-09 CN CN202223311944.XU patent/CN219161861U/en active Active
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