CN213778937U - Pavement asphalt layer thickness detection trolley - Google Patents
Pavement asphalt layer thickness detection trolley Download PDFInfo
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- CN213778937U CN213778937U CN202022919004.3U CN202022919004U CN213778937U CN 213778937 U CN213778937 U CN 213778937U CN 202022919004 U CN202022919004 U CN 202022919004U CN 213778937 U CN213778937 U CN 213778937U
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- asphalt layer
- layer thickness
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- thickness detection
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Abstract
The utility model relates to a thickness measuring device characterized by adopting ultrasonic vibration, in particular to a pavement asphalt layer thickness detection trolley, which comprises a plurality of ultrasonic probes, a PLC controller and an alarm lamp, wherein the ultrasonic probes are anchored on the lower surface of a chassis and are arranged downwards; the ultrasonic probes are arranged at intervals along the direction vertical to the advancing direction of the chassis. In the utility model, ultrasonic waves are transmitted and received by the ultrasonic probe, and the thickness of the asphalt layer is measured by analyzing the reflected wave on the surface of the asphalt layer and the time difference of the reflected wave on the interface between the asphalt layer and the common concrete layer; the utility model discloses in, set up a plurality of ultrasonic transducer through the chassis lower surface perpendicular to chassis advancing direction interval to measure the thickness on the pitch layer on many lines on the road surface when the chassis is marchd, thereby reduce measuring contingency and uncertainty.
Description
Technical Field
The utility model relates to an use the thickness measuring equipment who adopts ultrasonic vibration as the characteristic, especially relate to a road surface pitch layer thickness detection dolly.
Background
The conventional highway sequentially comprises a hardened roadbed, a common concrete layer and an asphalt layer from bottom to top. Wherein the asphalt layer is laid with asphalt concrete, utilizes the elasticity of pitch to alleviate the impact of vehicle to the road bed, and asphalt concrete itself is flexible, can be rolled out by the road roller and make the road surface level.
The thickness of the asphalt layer directly affects the life and performance of the road. If the asphalt layer is too thin, the shock absorption effect is poor, and the asphalt layer can be worn quickly to expose the lower common concrete layer, so that the road is damaged; if the asphalt layer is too thick, it may be deformed seriously in a high temperature weather. Therefore, the thickness needs to be measured after the asphalt layer is laid, and places with excessive thickness or excessive thinness are avoided.
Currently, the thickness of the asphalt layer is detected by means of a core drilling machine, which drills a hole in the road surface (generally in a non-motor vehicle lane) to core the hole and then measures the thickness. This not only destroys the pavement, but also presents significant contingencies and uncertainties.
The ultrasonic wave can be used for measuring the thickness, the ultrasonic wave can be reflected at the interface by transmitting the ultrasonic wave to an object to be measured, the thickness can be measured by measuring the time difference of the reflected wave, and an obvious interface exists between the asphalt layer and the common concrete layer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a road surface pitch layer thickness detects dolly.
The technical problem to be solved is that: at present, the thickness of the asphalt layer is detected by a core drilling machine, so that the pavement is damaged, and obvious contingency and uncertainty exist.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a pavement asphalt layer thickness detection trolley is used for detecting whether the asphalt layer thickness reaches the standard after pavement laying is finished, and comprises a plurality of ultrasonic probes, a PLC (programmable logic controller) and an alarm lamp, wherein the ultrasonic probes are anchored on the lower surface of a chassis and are arranged downwards;
the ultrasonic probes are arranged at intervals along the direction vertical to the advancing direction of the chassis.
Further, the two sides of the chassis are respectively provided with a transverse expansion rod, one end of the transverse expansion rod is rotatably connected with the chassis around a vertical rotating shaft, and the surface of the other end of the transverse expansion rod is anchored with an ultrasonic probe.
Further, horizontal expansion pole is connected through spacing pivot and vehicle bottom dish rotation, the spacing angle of spacing pivot includes 0 degree and 180 degrees, horizontal expansion pole is perpendicular with vehicle bottom dish direction of advance when spacing pivot rotates 0 degree and 180 degrees.
Furthermore, the ultrasonic probes are divided into two rows and are arranged at the front end and the rear end of the lower surface of the chassis.
Furthermore, the chassis is a two-axle chassis with four wheels per axle.
Further, the chassis comprises a handle rod for pushing and controlling the direction, and the handle rod is inserted into a hole formed in the middle of the chassis and is in clearance fit with the hole; the steering linkage is characterized in that a steering linkage parallel to the advancing direction of the chassis is arranged in the middle of a front axle of the chassis, one end of the steering linkage is fixedly connected with the front axle, and the other end of the steering linkage is connected with the lower end of a handle rod through a universal joint.
Further, road surface pitch layer thickness detects dolly still includes the battery that is used for the power supply, PLC controller and alarm lamp are connected with the battery electricity respectively, the PLC controller anchors respectively at the vehicle bottom dish lower surface with the battery.
The utility model relates to a road surface pitch layer thickness detection dolly compares with prior art, has following beneficial effect:
in the utility model, ultrasonic waves are transmitted and received by the ultrasonic probe, the thickness of the asphalt layer is measured by analyzing the reflected wave on the surface of the asphalt layer and the time difference of the reflected wave on the interface between the asphalt layer and the common concrete layer, and the thickness of the asphalt layer is analyzed by the PLC controller, and an alarm is given in time when the measured thickness of the asphalt layer is too thick or too thin, thereby realizing the control of the thickness of the asphalt layer;
the utility model discloses in, set up a plurality of ultrasonic transducer through the chassis lower surface perpendicular to chassis advancing direction interval to measure the thickness on the pitch layer on many lines on the road surface when the chassis is marchd, thereby reduce measuring contingency and uncertainty.
Drawings
FIG. 1 is a schematic structural diagram of a pavement asphalt layer thickness detection trolley of the present invention;
FIG. 2 is a schematic structural view of a pavement asphalt layer thickness detecting trolley of the present invention;
the vehicle comprises a chassis, a handle rod, a universal joint, a steering connecting rod, a fixing rod, an ultrasonic probe, a transverse unfolding rod, a PLC (programmable logic controller) and an alarm lamp, wherein the chassis is 1, the handle rod is 11, the universal joint is 12, the steering connecting rod is 13, the fixing rod is 14, the ultrasonic probe is 2, the transverse unfolding rod is 21, the PLC is 3, and the alarm lamp is 4.
Detailed Description
As shown in fig. 1-2, a pavement asphalt layer thickness detection trolley is used for detecting whether the asphalt layer thickness reaches the standard after pavement laying is finished, and comprises a plurality of ultrasonic probes 2 which are anchored on the lower surface of a chassis 1 and are arranged downwards, a PLC (programmable logic controller) 3 for analyzing detection results, and an alarm lamp 4 arranged on the chassis 1, wherein the ultrasonic probes 2 and the alarm lamp 4 are respectively and electrically connected with the PLC 3; ultrasonic waves are transmitted and received by the ultrasonic probe 2, the thickness of the asphalt layer is measured by analyzing the reflected wave on the surface of the asphalt layer and the time difference of the reflected wave on the interface between the asphalt layer and the common concrete layer, the thickness of the asphalt layer is analyzed by the PLC 3, and an alarm is given in time when the measured thickness of the asphalt layer is too thick or too thin; the alarm lamp 4 in this embodiment is an LED lamp.
The ultrasonic probes 2 are arranged at intervals along the direction vertical to the advancing direction of the chassis 1. This allows the thickness of the asphalt layer to be measured on multiple lines of the road surface as the chassis 1 travels, thereby reducing the chance and uncertainty of the measurement.
The ultrasonic probes 2 are divided into two rows and are arranged at the front end and the rear end of the lower surface of the chassis 1. Therefore, the bad condition that one end does not give an alarm due to measurement errors can be reduced, and meanwhile, the data of the front end and the data of the rear end can be compared, so that the measurement precision is improved.
The two sides at the front end and the rear end of the chassis 1 are respectively provided with a transverse unfolding rod 21, one end of the transverse unfolding rod 21 is rotatably connected with the chassis 1 around a vertical rotating shaft, and the lower surface of the other end is anchored with an ultrasonic probe 2. The width of the chassis 1 is limited and the road surface is wide, and the transverse spreading rod 21 is arranged to sweep the wider road surface.
The chassis 1 is a two-axle chassis, and four wheels are arranged on each axle, so that the chassis 1 is stable and stable when moving, obvious jolting is avoided, relative motion between the ultrasonic probe 2 and the road surface caused by jolting is avoided in the measuring process, and the accuracy is prevented from being influenced by Doppler effect.
As shown in fig. 2, the chassis 1 comprises a handle bar 11 for pushing and controlling the direction, the handle bar 11 is inserted in a hole formed in the middle of the chassis 1 and is in clearance fit with the hole; the middle part of a front axle of the chassis 1 is provided with a steering connecting rod 13 parallel to the advancing direction of the chassis 1, one end of the steering connecting rod 13 is fixedly connected with the front axle, and the other end of the steering connecting rod is connected with the lower end of the handle rod 11 through a universal joint 12. This pushing and steering structure ensures that the chassis 1 stably follows a planned route without shifting as in the case of a conventional cart.
In addition, in order to stabilize the handle bar 11, the middle section of the handle bar 11 may be connected to the upper surface of the chassis 1 by a fixing rod 14.
Road surface pitch layer thickness detection dolly is still including the battery that is used for the power supply, and PLC controller 3 and alarm lamp 4 are connected with the battery electricity respectively, and PLC controller 3 anchors respectively at 1 lower surface of vehicle bottom dish with the battery.
The utility model relates to a road surface pitch layer thickness detects dolly, its use includes following step:
the method comprises the following steps: setting three preset parameters in the PLC 3, including sound velocity v in an asphalt layer, preset thickness b of the asphalt layer and allowable deviation x; the time difference of the two measured echoes is t, and if the absolute value of the t multiplied by v-b is larger than x, the alarm lamp 4 adjacent to the ultrasonic probe 2 for measuring the result is started;
step two: planning a traveling route of the trolley according to the width of the road, and ensuring that all positions on the road are uniformly swept;
step three: the cart advances along a planned route, if an alarm occurs, the cart is stopped and the road surface at the position of the lighted lamp is marked, if the head of the cart is lighted, the road surface at the position of the head of the cart is marked, and if the tail of the cart is lighted, the road surface at the position of the tail of the cart is marked.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (7)
1. The utility model provides a road surface bituminous layer thickness detects dolly for whether reach standard after road surface pavement finishes detects the bituminous layer thickness, its characterized in that: the vehicle chassis alarm system comprises a plurality of ultrasonic probes (2) which are anchored on the lower surface of a vehicle chassis (1) and are arranged downwards, a PLC (programmable logic controller) controller (3) used for analyzing detection results, and an alarm lamp (4) arranged on the vehicle chassis (1), wherein the ultrasonic probes (2) and the alarm lamp (4) are respectively and electrically connected with the PLC controller (3);
the ultrasonic probes (2) are arranged at intervals along the direction perpendicular to the advancing direction of the chassis (1).
2. The pavement asphalt layer thickness detection trolley according to claim 1, characterized in that: the car chassis is characterized in that two sides of the car chassis (1) are respectively provided with a transverse unfolding rod (21), one end of the transverse unfolding rod (21) is rotatably connected with the car chassis (1) around a vertical rotating shaft, and the lower surface of the other end of the transverse unfolding rod is anchored with an ultrasonic probe (2).
3. The pavement asphalt layer thickness detection trolley according to claim 2, characterized in that: horizontal expansion pole (21) are rotated through spacing pivot and vehicle bottom dish (1) and are connected, the spacing angle of spacing pivot includes 0 degree and 180 degrees, horizontal expansion pole (21) rotate to 0 degree and 180 degrees when the orientation of marcing perpendicular with vehicle bottom dish (1) in spacing pivot.
4. The pavement asphalt layer thickness detection trolley according to claim 1, characterized in that: the ultrasonic probes (2) are divided into two rows and are arranged at the front end and the rear end of the lower surface of the chassis (1).
5. The pavement asphalt layer thickness detection trolley according to claim 1, characterized in that: the chassis (1) is a two-axle chassis with four wheels per axle.
6. The pavement asphalt layer thickness detection trolley according to claim 5, characterized in that: the vehicle chassis (1) comprises a handle rod (11) for pushing a vehicle and controlling the direction, and the handle rod (11) is inserted into a hole formed in the middle of the vehicle chassis (1) and is in clearance fit with the hole; the steering mechanism is characterized in that a steering connecting rod (13) parallel to the advancing direction of the vehicle chassis (1) is arranged in the middle of a front vehicle shaft of the vehicle chassis (1), one end of the steering connecting rod (13) is fixedly connected with the front vehicle shaft, and the other end of the steering connecting rod is connected with the lower end of a handle rod (11) through a universal joint (12).
7. The pavement asphalt layer thickness detection trolley according to claim 1, characterized in that: the pavement asphalt layer thickness detection trolley further comprises a storage battery used for supplying power, the PLC (3) and the alarm lamp (4) are respectively electrically connected with the storage battery, and the PLC (3) and the storage battery are respectively anchored on the lower surface of the chassis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022919004.3U CN213778937U (en) | 2020-12-08 | 2020-12-08 | Pavement asphalt layer thickness detection trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022919004.3U CN213778937U (en) | 2020-12-08 | 2020-12-08 | Pavement asphalt layer thickness detection trolley |
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| Publication Number | Publication Date |
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| CN213778937U true CN213778937U (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022919004.3U Active CN213778937U (en) | 2020-12-08 | 2020-12-08 | Pavement asphalt layer thickness detection trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479186A (en) * | 2022-09-09 | 2022-12-16 | 江西交通咨询有限公司 | Highway bridge roadbed pavement supervision device and method thereof |
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2020
- 2020-12-08 CN CN202022919004.3U patent/CN213778937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479186A (en) * | 2022-09-09 | 2022-12-16 | 江西交通咨询有限公司 | Highway bridge roadbed pavement supervision device and method thereof |
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