CN117364584A - Asphalt surface layer construction quality nondestructive testing device - Google Patents
Asphalt surface layer construction quality nondestructive testing device Download PDFInfo
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- CN117364584A CN117364584A CN202311651523.8A CN202311651523A CN117364584A CN 117364584 A CN117364584 A CN 117364584A CN 202311651523 A CN202311651523 A CN 202311651523A CN 117364584 A CN117364584 A CN 117364584A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 86
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 33
- 239000002344 surface layer Substances 0.000 title abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 173
- 230000001681 protective effect Effects 0.000 claims description 24
- 230000005484 gravity Effects 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 abstract description 18
- 230000001066 destructive effect Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/52—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting removably mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/02—Motor vehicles
- B62D63/04—Component parts or accessories
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a nondestructive testing device for asphalt surface layer construction quality. The invention belongs to the technical field of construction quality detection, and particularly relates to a non-destructive detection device for asphalt pavement construction quality, which comprises a balance walking component, a laser flatness detection device, a sensing controller component and an automatic tractor, wherein the balance walking component is pulled by the automatic tractor to walk on an asphalt pavement, the laser flatness detection device detects the flatness of the pavement through a laser ranging principle, and simultaneously, the rotation angle of the laser flatness detection device is measured, so that the non-destructive detection device can be used for analyzing the transverse flatness and the longitudinal flatness of the asphalt pavement, providing new evaluation data, enabling the evaluation standard of the asphalt pavement detection to be more three-dimensional, obtaining accurate detection results, and solving the problems of inaccurate detection results and the like caused by less evaluation indexes of the detection flatness in the existing non-destructive detection of the asphalt pavement construction quality.
Description
Technical Field
The invention belongs to the technical field of construction quality detection, and particularly relates to a nondestructive detection device for asphalt surface layer construction quality.
Background
After the asphalt pavement layer is constructed, in order to ensure that the construction quality can pass the engineering quality acceptance, nondestructive testing is required to be carried out on the asphalt pavement layer, and the flatness of the asphalt pavement layer is evaluated; the existing flatness detection equipment is single in function, can be used for detecting less evaluation indexes of flatness, and is inaccurate in detection result.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a nondestructive testing device for the construction quality of an asphalt surface layer, which comprises a balance walking component, a laser flatness detection device, a sensing controller component and an automatic tractor, wherein the balance walking component is used for walking on the asphalt surface, the laser flatness detection device detects the flatness of the road surface through a laser ranging principle, and simultaneously measures the rotation angle of the laser flatness detection device, so that the nondestructive testing device can be used for analyzing the transverse flatness and the longitudinal flatness of the asphalt surface layer, providing new evaluation data, enabling the evaluation standard of the asphalt surface layer detection to be more stereoscopic, obtaining accurate detection results, and solving the problems of insufficient accuracy and the like caused by less evaluation indexes of the detection flatness in the conventional nondestructive testing of the construction quality of the asphalt surface layer.
The technical scheme adopted by the invention is as follows: the invention provides a nondestructive testing device for asphalt pavement construction quality, which comprises a balance walking assembly, a laser flatness detection device, a sensing controller assembly and an automatic tractor, wherein the laser flatness detection device is rotationally arranged on the balance walking assembly; the balance walking assembly comprises a bearing chassis and a longitudinal rotating support, the bearing chassis is connected with the automatic tractor, the longitudinal rotating support is rotationally arranged on the bearing chassis, a rotating plane of the longitudinal rotating support is parallel to a vertical plane where the advancing direction of the automatic tractor is located, the laser flatness detecting device is rotationally arranged on the longitudinal rotating support, and a rotating plane of the laser flatness detecting device is perpendicular to a rotating plane of the balance walking assembly; the bottom of the laser flatness detection device is provided with a central laser detection head and side laser detection heads, the central laser detection head is positioned at the central position of the bottom of the laser flatness detection device, and the side laser detection heads are symmetrically arranged at two sides of the central laser detection head;
the automatic tractor is used for traction balance walking components to walk on the asphalt pavement, the laser flatness detection device detects the flatness of the pavement through a laser ranging principle, the flatness of the asphalt pavement in the same direction can be obtained through comparing and analyzing data measured by the central laser detection head and the side laser detection heads, and the comprehensive detection of the asphalt pavement is realized along with the movement of the laser flatness detection device; when the bearing chassis passes through the uneven position, the bearing chassis inclines, at the moment, the longitudinal rotation support rotates relatively between the bearing chassis and the influence of self gravity, the laser flatness detection device rotates relatively between the bearing chassis and the longitudinal rotation support due to the self gravity influence, the horizontal posture of the laser flatness detection device is kept, the distance measuring laser emitted by the laser flatness detection device can be emitted to the ground at right angles, and the measurement error caused by inclination of an incident angle is reduced.
Further, the longitudinal rotating support is provided with a second through groove, the laser flatness detecting device is rotationally arranged in the second through groove, the length and the width of the second through groove are larger than those of the laser flatness detecting device, the bearing chassis is provided with a first through groove, the longitudinal rotating support is rotationally arranged in the first through groove, and the length and the width of the first through groove are larger than those of the longitudinal rotating support; the laser flatness detection device is arranged in the second through groove, the longitudinal rotation support is arranged in the first through groove, the first through groove and the second through groove play a role in protecting the longitudinal rotation support and the laser flatness detection device, so that the length and width dimensions of the first through groove and the second through groove are larger than those of the longitudinal rotation support and the laser flatness detection device, interference is prevented when the longitudinal rotation support and the laser flatness detection device rotate, and the longitudinal rotation support and the laser flatness detection device can smoothly rotate.
Further, the laser flatness detection device is provided with a transverse rotating shaft, the transverse rotating shaft is positioned at the gravity center position of the laser flatness detection device, the longitudinal rotating support is provided with a transverse shaft sleeve, the transverse shaft sleeves are symmetrically arranged at two sides of the second through groove, the transverse rotating shaft is rotationally connected in the transverse shaft sleeve, the transverse shaft sleeve is provided with a transverse angle sensor, and the transverse angle sensor is used for detecting the rotation angle of the transverse rotating shaft; the transverse angle sensor is arranged to detect the rotation angle of the transverse rotating shaft, when the asphalt pavement is uneven and leads to transverse inclination of the bearing chassis, the laser flatness detection device rotates on the longitudinal rotating support due to self gravity balance, at the moment, the transverse rotating shaft is twisted in the transverse shaft sleeve, the transverse angle sensor records the rotation angle of the transverse rotating shaft, the transverse flatness of the asphalt pavement can be analyzed, new evaluation data are provided, the evaluation standard of asphalt pavement detection is more stereoscopic, and accurate detection results are obtained.
Further, a longitudinal rotating shaft is arranged on the longitudinal rotating support, the longitudinal rotating shaft is positioned at the gravity center position of the longitudinal rotating support, a longitudinal shaft sleeve is arranged on the bearing chassis, the longitudinal shaft sleeves are symmetrically arranged on two sides of the first through groove, the longitudinal rotating shaft is rotationally connected in the longitudinal shaft sleeve, a longitudinal angle sensor is arranged on the longitudinal shaft sleeve, and the longitudinal angle sensor is used for detecting the rotating angle of the longitudinal rotating shaft; the longitudinal angle sensor is arranged to detect the rotation angle of the longitudinal rotating shaft, when the asphalt pavement is uneven and leads to the longitudinal inclination of the bearing chassis, the longitudinal rotating support rotates on the bearing chassis due to self gravity balance, at the moment, the longitudinal rotating shaft is twisted in the longitudinal shaft sleeve, the longitudinal angle sensor records the rotation angle of the longitudinal rotating shaft, and the longitudinal angle sensor can be used for analyzing the transverse evenness of the asphalt pavement, providing new evaluation data, enabling the evaluation standard of asphalt pavement detection to be more stereoscopic and obtaining accurate detection results.
Further, the sensing controller component comprises a microcontroller, the longitudinal angle sensor and the transverse angle sensor are electrically connected with the microcontroller, the central laser detection head and the side laser detection head are electrically connected with the microcontroller, and the microcontroller controls the start and stop of the central laser detection head and the side laser detection head according to signals input by the longitudinal angle sensor and the transverse angle sensor; the micro controller is used for carrying out preliminary analysis on signals input by the longitudinal angle sensor and the transverse angle sensor, if the bearing chassis is inclined and jolted greatly, the laser flatness detection device and the longitudinal rotation support are rotated frequently at the moment, the incidence angles of detection laser beams of the central laser detection head and the side laser detection head are changed frequently, the detection effect is poor, a large amount of invalid data is generated, meanwhile, the signals input by the longitudinal angle sensor and the transverse angle sensor to the micro controller are greatly fluctuated, the micro controller is used for controlling the central laser detection head and the side laser detection head to stop detection when the signals input by the longitudinal angle sensor and the transverse angle sensor to the micro controller are stable, the micro controller is used for controlling the detection work of the central laser detection head and the side laser detection head to be restarted, and the detection work of the central laser detection head and the side laser detection head is controlled when the longitudinal rotation support and the laser flatness detection device are operated greatly and at high frequency, so that the invalid data measured by the central laser detection head and the side laser detection head can be effectively reduced, and the detection precision is improved.
Further, symmetrical supporting legs are arranged on the bearing chassis and symmetrically arranged on two sides of the bearing chassis, the bottom ends of the symmetrical supporting legs are connected with walking wheel sets, and the walking wheel sets are rigidly connected with the bearing chassis through the symmetrical supporting legs; the symmetrical supporting legs are arranged to realize rigid connection of the bearing chassis and the traveling wheel set, the traveling wheel set is in contact with the asphalt surface layer when the bearing chassis moves, and when the bearing chassis reaches the uneven position of the asphalt surface layer, the traveling wheel set displays the uneven position of the asphalt surface layer as the inclination of the bearing chassis, so that the detection of the longitudinal angle sensor and the transverse angle sensor is facilitated.
Further, a clamping groove is further formed in the bearing chassis, the clamping groove is located on one side, far away from the automatic tractor, of the bearing chassis, a protection plate is arranged in the clamping groove in a clamping mode, the protection plate is perpendicular to the bearing chassis, and the width of the protection plate is not larger than the length of the symmetrical supporting legs; the protective plate is arranged on the bearing chassis, so that the central laser detection head and the side laser detection heads are protected, interference of ambient light and dust to the central laser detection head and the side laser detection heads is prevented, and the stability of asphalt surface layer detection is improved.
Further, the sensing controller assembly further comprises a wireless transmitting module, wherein the wireless transmitting module is electrically connected with the microcontroller, and the wireless transmitting module outputs signals of the longitudinal angle sensor, the transverse angle sensor, the central laser detecting head and the side laser detecting head in a wireless transmitting mode; and the data measured by the longitudinal angle sensor, the transverse angle sensor, the central laser detection head and the side laser detection heads are transmitted to a computer used by a detection personnel through the sensor controller assembly, and the data are analyzed by using a proper algorithm to realize evaluation of the flatness of the asphalt surface layer.
Further, the sensing controller assembly further comprises a protective shell, the microcontroller and the wireless transmitting module are arranged in the protective shell, the protective shell is fixedly connected to the automatic tractor, and an upper cover is rotatably arranged on the protective shell; the microcontroller and the wireless transmitting module are arranged in the protective shell, and the upper cover is arranged on the protective shell to protect the microcontroller and the wireless transmitting module, so that the microcontroller and the protective shell are prevented from being damaged.
Further, the automatic tractor comprises a tractor body, a driving motor and a traction wheel set, wherein the driving motor and the traction wheel set are arranged on the tractor body, the driving motor drives the traction wheel set, a spherical shaft connecting seat is arranged on the tractor body, a traction spherical connecting rod is arranged on the bearing chassis, and the traction spherical connecting rod is rotationally connected in the spherical shaft connecting seat; the traction wheel group is driven by the driving motor, so that the traction of the traction vehicle body to the balance walking assembly is realized, the movable connection of the bearing chassis and the traction vehicle body is realized through the traction spherical connecting rod and the spherical shaft connecting seat, and the reaction force generated when the bearing chassis tilts is avoided to bring the traction vehicle body to the bias.
The beneficial effects obtained by the invention by adopting the structure are as follows:
(1) The invention provides a nondestructive testing device for the construction quality of an asphalt pavement, which uses an automatic tractor to traction a balance walking assembly to walk on the asphalt pavement, a laser flatness testing device tests the flatness of the pavement by a laser ranging principle, and the flatness of the asphalt pavement in the same direction can be obtained by comparing and analyzing the data tested by a central laser testing head and a side laser testing head, and the comprehensive testing of the asphalt pavement is realized along with the movement of the laser flatness testing device;
(2) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that a laser flatness detection device and a longitudinal rotating bracket relatively rotate with a bearing chassis due to the influence of self gravity, so that distance measuring laser emitted by the laser flatness detection device can be emitted to the ground at right angles, and measurement errors caused by inclination of an incident angle are reduced;
(3) The invention provides a nondestructive testing device for the construction quality of an asphalt surface layer, which is characterized in that when an asphalt pavement is uneven and a bearing chassis is transversely inclined, a transverse angle sensor detects the rotation angle of a transverse rotating shaft and is used for analyzing the transverse flatness of the asphalt surface layer and providing new evaluation data, so that the evaluation standard of the asphalt surface layer is more stereoscopic and accurate detection results are obtained;
(4) The invention provides a nondestructive testing device for the construction quality of an asphalt surface layer, which is characterized in that when an asphalt pavement is uneven and a bearing chassis is longitudinally inclined, a longitudinal angle sensor detects the rotation angle of a longitudinal rotating shaft and is used for analyzing the transverse flatness of the asphalt surface layer and providing new evaluation data, so that the evaluation standard of the asphalt surface layer detection is more stereoscopic and accurate detection results are obtained;
(5) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that a microcontroller is used for carrying out preliminary analysis on signals input by a longitudinal angle sensor and a transverse angle sensor, and when a longitudinal rotation support and a laser flatness detection device act in a large-amplitude and high-frequency manner, a central laser detection head and a side laser detection head are controlled to stop working, so that invalid data measured by the central laser detection head and the side laser detection head can be effectively reduced, and the detection precision is improved;
(6) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that symmetrical supporting legs are arranged to realize rigid connection of a bearing chassis and a traveling wheel set, and the traveling wheel set shows unevenness of an asphalt pavement as inclination of the bearing chassis, so that the detection of a longitudinal angle sensor and a transverse angle sensor is facilitated;
(7) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that a protective plate is arranged on a bearing chassis, so that the central laser detection head and the side laser detection heads are protected, the interference of ambient light and dust on the central laser detection head and the side laser detection heads is prevented, and the stability of asphalt pavement detection is improved;
(8) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that a sensor controller component is used for transmitting data measured by a longitudinal angle sensor, a transverse angle sensor, a central laser detection head and a side laser detection head to a computer used by a tester, and the data are analyzed by using a proper algorithm to realize evaluation of the flatness of an asphalt pavement;
(9) The invention provides a nondestructive testing device for asphalt pavement construction quality, which is characterized in that a microcontroller and a wireless transmitting module are arranged in a protective shell, and an upper cover is arranged on the protective shell to protect the microcontroller and the wireless transmitting module, so that the microcontroller and the protective shell are prevented from being damaged;
(10) The invention provides a nondestructive testing device for asphalt pavement construction quality, which realizes movable connection of a bearing chassis and a traction vehicle body through a traction spherical connecting rod and a spherical shaft connecting seat, and avoids the reaction force generated when the bearing chassis tilts to bring the traction vehicle body to the bias.
Drawings
FIG. 1 is a front view of a nondestructive testing device for asphalt pavement construction quality;
FIG. 2 is a top perspective view of a nondestructive testing device for asphalt pavement construction quality;
FIG. 3 is a top view of a nondestructive testing device for asphalt pavement construction quality;
FIG. 4 is an exploded view of a nondestructive testing device for asphalt pavement construction quality according to the present invention;
FIG. 5 is an enlarged view of the portion I of FIG. 2;
FIG. 6 is a bottom perspective view of a nondestructive testing device for asphalt pavement construction quality, which is provided by the invention;
fig. 7 is an enlarged view at ii in fig. 6.
The device comprises 100 parts of a balance walking assembly, 200 parts of a laser flatness detection device, 300 parts of a sensing controller assembly, 400 parts of an automatic tractor, 101 parts of a bearing chassis, 102 parts of a first through groove, 103 parts of a longitudinal shaft sleeve, 104 parts of a symmetrical supporting leg, 105 parts of a clamping groove, 106 parts of a traction spherical connecting rod, 107 parts of a longitudinal angle sensor, 108 parts of a traction wheel set, 109 parts of a protection plate, 110 parts of a longitudinal rotating support, 111 parts of a second through groove, 112 parts of a longitudinal rotating shaft, 113 parts of a transverse shaft sleeve, 114 parts of a transverse angle sensor, 201 parts of a central laser detection head, 202 parts of a side laser detection head, 203 parts of a transverse rotating shaft, 301 parts of a protective shell, 302 parts of a microcontroller, 303 parts of a wireless transmitting module, 304 parts of an upper cover, 401 parts of a traction vehicle body, 402 parts of a driving motor, 403 parts of a traction wheel set, 404 parts of a spherical shaft connecting seat.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1 to 7, the invention provides a nondestructive testing device for asphalt pavement construction quality, which comprises a balance walking assembly 100, a laser flatness detecting device 200, a sensing controller assembly 300 and an automatic tractor 400, wherein the laser flatness detecting device 200 is rotationally arranged on the balance walking assembly 100, the sensing controller assembly 300 is fixedly connected on the automatic tractor 400, the balance walking assembly 100 is detachably connected with the automatic tractor 400, and the automatic tractor 400 drives the balance walking assembly 100 to move; the balance walking assembly 100 comprises a bearing chassis 101 and a longitudinal rotating support 110, the bearing chassis 101 is connected with the automatic tractor 400, the longitudinal rotating support 110 is rotationally arranged on the bearing chassis 101, a rotating plane of the longitudinal rotating support 110 is parallel to a vertical plane where the advancing direction of the automatic tractor 400 is located, the laser flatness detecting device 200 is rotationally arranged on the longitudinal rotating support 110, and a rotating plane of the laser flatness detecting device 200 is perpendicular to a rotating plane of the balance walking assembly 100; the bottom of the laser flatness detection device 200 is provided with a central laser detection head 201 and side laser detection heads 202, the central laser detection head 201 is positioned at the central position of the bottom of the laser flatness detection device 200, and the side laser detection heads 202 are symmetrically arranged at two sides of the central laser detection head 201;
the automatic tractor 400 is used for traction of the balance walking assembly 100 to walk on an asphalt pavement, the laser flatness detection device 200 detects the flatness of the pavement through a laser ranging principle, the flatness of the asphalt pavement in the same direction can be obtained through comparing and analyzing the data measured by the central laser detection head 201 and the side laser detection heads 202, and the comprehensive detection of the asphalt pavement is realized along with the movement of the laser flatness detection device 200; when the carrying chassis 101 passes through the uneven position, the carrying chassis 101 tilts, at this time, the longitudinal rotation support 110 and the carrying chassis 101 relatively rotate due to the influence of self gravity, and the laser flatness detecting device 200 relatively rotates with the longitudinal rotation support 110 due to the influence of self gravity, so that the horizontal posture of the laser flatness detecting device 200 is maintained, and it is ensured that the ranging laser emitted by the laser flatness detecting device 200 can be emitted to the ground at right angles.
The longitudinal rotating support 110 is provided with a second through groove 111, the laser flatness detecting device 200 is rotationally arranged in the second through groove 111, the length and the width of the second through groove 111 are larger than those of the laser flatness detecting device 200, the bearing chassis 101 is provided with a first through groove 102, the longitudinal rotating support 110 is rotationally arranged in the first through groove 102, and the length and the width of the first through groove 102 are larger than those of the longitudinal rotating support 110; the laser flatness detecting device 200 is disposed in the second through groove 111, and the vertical rotation bracket 110 is disposed in the first through groove 102.
The laser flatness detection device 200 is provided with a transverse rotating shaft 203, the transverse rotating shaft 203 is positioned at the gravity center position of the laser flatness detection device 200, the longitudinal rotating support 110 is provided with a transverse shaft sleeve 113, the transverse shaft sleeve 113 is symmetrically arranged at two sides of the second through groove 111, the transverse rotating shaft 203 is rotatably connected in the transverse shaft sleeve 113, the transverse shaft sleeve 113 is provided with a transverse angle sensor 114, and the transverse angle sensor 114 is used for detecting the rotating angle of the transverse rotating shaft 203; the transverse angle sensor 114 is provided to detect the rotation angle of the transverse rotating shaft 203, and when the asphalt pavement is uneven and the load-bearing chassis 101 is inclined transversely, the laser flatness detecting device 200 rotates on the longitudinal rotating support 110 due to self gravity balance, at this time, the transverse rotating shaft 203 is twisted in the transverse shaft sleeve 113, and the transverse angle sensor 114 records the rotation angle of the transverse rotating shaft 203.
The longitudinal rotating support 110 is provided with a longitudinal rotating shaft 112, the longitudinal rotating shaft 112 is positioned at the gravity center position of the longitudinal rotating support 110, the bearing chassis 101 is provided with longitudinal shaft sleeves 103, the longitudinal shaft sleeves 103 are symmetrically arranged at two sides of the first through groove 102, the longitudinal rotating shaft 112 is rotationally connected in the longitudinal shaft sleeves 103, the longitudinal shaft sleeves 103 are provided with longitudinal angle sensors 107, and the longitudinal angle sensors 107 are used for detecting the rotating angle of the longitudinal rotating shaft 112; the longitudinal angle sensor 107 is provided to detect the rotation angle of the longitudinal rotation shaft 112, when the asphalt pavement is uneven and the load-bearing chassis 101 is inclined longitudinally, the longitudinal rotation support 110 rotates on the load-bearing chassis 101 due to self gravity balance, at this time, the longitudinal rotation shaft 112 is twisted in the longitudinal shaft sleeve 103, the rotation angle of the longitudinal rotation shaft 112 is recorded by the longitudinal angle sensor 107, and the types of the longitudinal angle sensor 107 and the transverse angle sensor 114 are MPU-6050.
The sensor controller assembly 300 comprises a microcontroller 302, the longitudinal angle sensor 107 and the transverse angle sensor 114 are electrically connected with the microcontroller 302, the central laser detection head 201 and the side laser detection head 202 are electrically connected with the microcontroller 302, and the microcontroller 302 controls the start and stop of the central laser detection head 201 and the side laser detection head 202 according to signals input by the longitudinal angle sensor 107 and the transverse angle sensor 114; the signals input by the longitudinal angle sensor 107 and the transverse angle sensor 114 are primarily analyzed by the microcontroller 302, if the bearing chassis 101 is inclined and jolted greatly, the laser flatness detection device 200 and the longitudinal rotation support 110 are frequently rotated, the incidence angles of detection laser beams of the central laser detection head 201 and the side laser detection head 202 are frequently changed, the detection effect is poor, a large amount of invalid data is generated, meanwhile, the signals input by the longitudinal angle sensor 107 and the transverse angle sensor 114 to the microcontroller 302 are greatly fluctuated, the microcontroller 302 controls the central laser detection head 201 and the side laser detection head 202 to stop detection, when the signals input by the longitudinal angle sensor 107 and the transverse angle sensor 114 to the microcontroller 302 are stable, the microcontroller 302 controls the central laser detection head 201 and the side laser detection head 202 to restart to work, the detection work of the central laser detection head 201 and the side laser detection head 202 is controlled by arranging the microcontroller 302, the detection work of the central laser detection head 201 and the side laser detection head 202 is stopped when the longitudinal rotation support 110 and the laser flatness detection device 200 are subjected to a large-amplitude and high-frequency action, and the data of the central laser detection head 201 and the side laser detection head 202 can be effectively reduced to be the model of Pro of the microcontroller Mini.
The bearing chassis 101 is provided with symmetrical supporting legs 104, the symmetrical supporting legs 104 are symmetrically arranged on two sides of the bearing chassis 101, the bottom ends of the symmetrical supporting legs 104 are connected with walking wheel sets 108, and the walking wheel sets 108 are rigidly connected with the bearing chassis 101 through the symmetrical supporting legs 104; the symmetrical supporting legs 104 are arranged to realize rigid connection of the bearing chassis 101 and the traveling wheel sets 108, the traveling wheel sets 108 are in contact with the asphalt surface layer when the bearing chassis 101 moves, and when the bearing chassis 101 reaches the uneven position of the asphalt surface layer, the traveling wheel sets 108 represent the uneven position of the asphalt surface layer as the inclination of the bearing chassis 101.
The bearing chassis 101 is also provided with a clamping groove 105, the clamping groove 105 is positioned on one side of the bearing chassis 101 far away from the automatic tractor 400, the clamping groove 105 is provided with a protection plate 109 in a clamping way, the protection plate 109 is vertical to the bearing chassis 101, and the width of the protection plate 109 is not greater than the length of the symmetrical supporting legs 104; the protective plate 109 is arranged on the bearing chassis 101, and plays a role in protecting the central laser detection head 201 and the side laser detection heads 202, and preventing the interference of ambient light and dust on the central laser detection head 201 and the side laser detection heads 202.
The sensor controller assembly 300 further includes a wireless transmitting module 303, the wireless transmitting module 303 is electrically connected with the microcontroller 302, and the wireless transmitting module 303 outputs signals of the longitudinal angle sensor 107, the transverse angle sensor 114, the central laser detector 201 and the side laser detector 202 in a wireless transmitting manner; the data measured by the longitudinal angle sensor 107, the transverse angle sensor 114, the central laser probe 201 and the side laser probe 202 are sent to a computer used by a detector through the sensor controller assembly 300, and are analyzed by a proper algorithm to evaluate the evenness of the asphalt surface layer, and the model of the wireless transmitting module 303 is NRF24L01.
The sensing controller assembly 300 further comprises a protective shell 301, wherein the microcontroller 302 and the wireless transmitting module 303 are arranged in the protective shell 301, the protective shell 301 is fixedly connected to the automatic tractor 400, and an upper cover 304 is rotatably arranged on the protective shell 301; the microcontroller 302 and the wireless transmission module 303 are disposed in the protective case 301, and an upper cover 304 is disposed on the protective case 301 to protect the microcontroller 302 and the wireless transmission module 303.
The automatic tractor 400 comprises a tractor body 401, a driving motor 402 and a traction wheel set 403, wherein the driving motor 402 and the traction wheel set 403 are arranged on the tractor body 401, the driving motor 402 drives the traction wheel set 403, a spherical shaft connecting seat 404 is arranged on the tractor body 401, a traction spherical connecting rod 106 is arranged on the bearing chassis 101, and the traction spherical connecting rod 106 is rotationally connected in the spherical shaft connecting seat 404; traction of the balanced walking assembly 100 by the traction vehicle body 401 is achieved by driving the traction wheel set 403 through the driving motor 402, and movable connection of the bearing chassis 101 and the traction vehicle body 401 is achieved through the traction spherical connecting rod 106 and the spherical shaft connecting seat 404.
When the device is specifically used, firstly, the driving motor 402 is started to drive the traction wheel set 403, so that the automatic tractor 400 advances along an asphalt road, the traction vehicle body 401 is connected to the traction spherical connecting rod 106 through the spherical shaft connecting seat 404, the traction bearing chassis 101 moves along with the traction vehicle body 401, the laser flatness detection device 200 on the bearing chassis 101 detects the flatness of a road surface through the laser ranging principle, the flatness of an asphalt surface layer in the same direction can be obtained through comparing and analyzing data detected by the central laser detection head 201 and the side laser detection head 202, the comprehensive detection of the asphalt surface layer is realized along with the movement of the laser flatness detection device 200, and the data detected by the central laser detection head 201 and the side laser detection head 202 are input into the microcontroller 302;
when the asphalt pavement is uneven and leads to the transverse inclination of the bearing chassis 101, the laser flatness detection device 200 rotates on the longitudinal rotating support 110 due to self gravity balance, at the moment, the transverse rotating shaft 203 rotates in the transverse shaft sleeve 113, the transverse angle sensor 114 records the rotating angle of the transverse rotating shaft 203 and can be used for analyzing the transverse flatness of the asphalt pavement, the longitudinal angle sensor 107 is arranged for detecting the rotating angle of the longitudinal rotating shaft 112, when the asphalt pavement is uneven and leads to the longitudinal inclination of the bearing chassis 101, the longitudinal rotating support 110 rotates on the bearing chassis 101 due to self gravity balance, at the moment, the longitudinal rotating shaft 112 rotates in the longitudinal shaft sleeve 103, the longitudinal angle sensor 107 records the rotating angle of the longitudinal rotating shaft 112, and data measured by the longitudinal angle sensor 107 and the transverse angle sensor 114 are input into the microcontroller 302;
if the bearing chassis 101 is inclined and jolted greatly, the laser flatness detecting device 200 and the longitudinal rotating bracket 110 are rotated frequently, the incidence angles of the detected laser beams of the central laser detecting head 201 and the side laser detecting head 202 are changed frequently, meanwhile, the signals input into the micro controller 302 by the longitudinal angle sensor 107 and the transverse angle sensor 114 are greatly fluctuated, the micro controller 302 controls the central laser detecting head 201 and the side laser detecting head 202 to stop detecting operation at the moment, and when the signals input into the micro controller 302 by the longitudinal angle sensor 107 and the transverse angle sensor 114 are stable, the micro controller 302 controls the central laser detecting head 201 and the side laser detecting head 202 to restart working;
the data measured by the longitudinal angle sensor 107, the transverse angle sensor 114, the central laser probe 201 and the side laser probe 202 are sent to a computer used by a detector through a wireless transmitting module 303, and the data are analyzed by using a proper algorithm to realize the evaluation of the flatness of the asphalt surface layer.
The whole working flow of the invention is just the above, and the step is repeated when the invention is used next time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (10)
1. The utility model provides an asphalt pavement construction quality nondestructive test device which characterized in that: the automatic walking device comprises a balance walking assembly (100), a laser flatness detection device (200), a sensing controller assembly (300) and an automatic tractor (400), wherein the laser flatness detection device (200) is rotationally arranged on the balance walking assembly (100), the sensing controller assembly (300) is fixedly connected to the automatic tractor (400), the balance walking assembly (100) is detachably connected with the automatic tractor (400), and the automatic tractor (400) drives the balance walking assembly (100) to move;
the balance walking assembly (100) comprises a bearing chassis (101) and a longitudinal rotating support (110), the bearing chassis (101) is connected with an automatic tractor (400), the longitudinal rotating support (110) is rotationally arranged on the bearing chassis (101), a rotating plane of the longitudinal rotating support (110) is parallel to a vertical plane where the advancing direction of the automatic tractor (400) is located, the laser flatness detection device (200) is rotationally arranged on the longitudinal rotating support (110), and a rotating plane of the laser flatness detection device (200) is perpendicular to the rotating plane of the balance walking assembly (100); the bottom of laser flatness detection device (200) is equipped with central laser detection head (201) and side laser detection head (202), central laser detection head (201) are located the bottom central point of laser flatness detection device (200), side laser detection head (202) symmetry are located the both sides of central laser detection head (201).
2. The asphalt pavement construction quality nondestructive testing device according to claim 1, wherein: the laser flatness detection device is characterized in that a second through groove (111) is formed in the longitudinal rotation support (110), the laser flatness detection device (200) is rotationally arranged in the second through groove (111), the length and the width of the second through groove (111) are larger than those of the laser flatness detection device (200), a first through groove (102) is formed in the bearing chassis (101), the longitudinal rotation support (110) is rotationally arranged in the first through groove (102), and the length and the width of the first through groove (102) are larger than those of the longitudinal rotation support (110).
3. The asphalt pavement construction quality nondestructive testing device according to claim 2, wherein: the laser flatness detection device is characterized in that a transverse rotating shaft (203) is arranged on the laser flatness detection device (200), the transverse rotating shaft (203) is located at the gravity center position of the laser flatness detection device (200), transverse shaft sleeves (113) are arranged on the longitudinal rotating support (110), the transverse shaft sleeves (113) are symmetrically arranged on two sides of the second through groove (111), the transverse rotating shaft (203) is rotationally connected in the transverse shaft sleeves (113), transverse angle sensors (114) are arranged on the transverse shaft sleeves (113), and the transverse angle sensors (114) are used for detecting the rotation angle of the transverse rotating shaft (203).
4. A non-destructive testing device for the construction quality of an asphalt pavement according to claim 3, wherein: the vertical rotation support (110) is provided with a vertical rotation shaft (112), the vertical rotation shaft (112) is located at the gravity center position of the vertical rotation support (110), the bearing chassis (101) is provided with a vertical shaft sleeve (103), the vertical shaft sleeve (103) is symmetrically arranged on two sides of the first through groove (102), the vertical rotation shaft (112) is rotationally connected in the vertical shaft sleeve (103), the vertical shaft sleeve (103) is provided with a vertical angle sensor (107), and the vertical angle sensor (107) is used for detecting the rotation angle of the vertical rotation shaft (112).
5. The asphalt pavement construction quality nondestructive testing device according to claim 4, wherein: the sensing controller assembly (300) comprises a microcontroller (302), the longitudinal angle sensor (107) and the transverse angle sensor (114) are electrically connected with the microcontroller (302), the central laser detection head (201) and the side laser detection head (202) are electrically connected with the microcontroller (302), and the microcontroller (302) controls the start and stop of the central laser detection head (201) and the side laser detection head (202) according to signals input by the longitudinal angle sensor (107) and the transverse angle sensor (114).
6. The asphalt pavement construction quality nondestructive testing device according to claim 5, wherein: the bearing chassis (101) is provided with symmetrical supporting legs (104), the symmetrical supporting legs (104) are symmetrically arranged on two sides of the bearing chassis (101), the bottom ends of the symmetrical supporting legs (104) are connected with walking wheel sets (108), and the walking wheel sets (108) are rigidly connected with the bearing chassis (101) through the symmetrical supporting legs (104).
7. The asphalt pavement construction quality nondestructive testing device according to claim 6, wherein: the automatic tractor is characterized in that a clamping groove (105) is further formed in the bearing chassis (101), the clamping groove (105) is located on one side, far away from the automatic tractor (400), of the bearing chassis (101, a protection plate (109) is arranged in the clamping groove (105) in a clamping mode, the protection plate (109) is perpendicular to the bearing chassis (101), and the width of the protection plate (109) is not larger than the length of the symmetrical supporting legs (104).
8. The asphalt pavement construction quality nondestructive testing device according to claim 7, wherein: the sensing controller assembly (300) further comprises a wireless transmitting module (303), the wireless transmitting module (303) is electrically connected with the microcontroller (302), and the wireless transmitting module (303) outputs signals of the longitudinal angle sensor (107), the transverse angle sensor (114), the central laser detecting head (201) and the side laser detecting heads (202) in a wireless transmitting mode.
9. The asphalt pavement construction quality nondestructive testing device according to claim 8, wherein: the sensing controller assembly (300) further comprises a protective shell (301), the microcontroller (302) and the wireless transmitting module (303) are arranged in the protective shell (301), the protective shell (301) is fixedly connected to the automatic tractor (400), and an upper cover (304) is rotatably arranged on the protective shell (301).
10. The asphalt pavement construction quality nondestructive testing device according to claim 9, wherein: the automatic tractor (400) comprises a tractor body (401), a driving motor (402) and a traction wheel set (403), wherein the driving motor (402) and the traction wheel set (403) are arranged on the tractor body (401), the driving motor (402) drives the traction wheel set (403), a spherical shaft connecting seat (404) is arranged on the tractor body (401), a traction spherical connecting rod (106) is arranged on the bearing chassis (101), and the traction spherical connecting rod (106) is rotationally connected in the spherical shaft connecting seat (404).
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| CN117364584B (en) | 2024-02-23 |
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