Flatness detection device for asphalt concrete joint treatment
By designing a detection device with stabilizing, limiting, and balancing mechanisms, the problem of shaking and offset of the inspection vehicle at the joint was solved, the detection accuracy was improved, and the accurate detection of the joint was ensured.
Patent Information
- Application Number
- CN202511608955.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-02-06
AI Technical Summary
When inspecting the joints between new and old road surfaces, the difference in friction between the inspection vehicle and the inspection device causes the device to shift, resulting in reduced inspection accuracy and errors, and failing to reflect the true condition of the joint.
A detection device including a stabilizing mechanism, a limiting mechanism, and a balancing mechanism was designed. The stabilizing component reduces the swaying effect of the detection vehicle, the limiting component keeps the detection device vertical, and the balancing component adjusts the speed difference of the wheels to ensure detection accuracy.
This effectively reduces the shaking and offset of the inspection vehicle at the joint, improves inspection accuracy, and ensures accurate inspection of the joint.
Smart Images
Figure CN121473207A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of asphalt concrete, in particular to a flatness detection device for asphalt concrete joint treatment. BACKGROUND
[0002] Asphalt concrete is commonly known as asphalt concrete. Artificially selected mineral aggregates with a certain grading composition, crushed gravel or crushed gravel, stone chips or sand, mineral powder, etc. are mixed with a certain proportion of road asphalt material under strict control conditions. Asphalt concrete can be divided into two categories according to the binder used: petroleum asphalt and coal asphalt. According to the type of aggregate used, it can be divided into several categories: crushed stone, gravel, sand, and slag. Crushed stone is the most commonly used. According to the maximum particle size of the mixture, it can be divided into coarse, medium, fine, and sand.
[0003] When detecting the flatness of the joint between the new and old road surfaces, due to the different frictional forces on both sides of the new and old road surfaces, when the detection vehicle drives over it, the detection vehicle may deviate from its route due to the different frictional forces. The detection device has a limited detection distance at the joint, so that after the trolley deviates, the detection device may only collect single data of "newly paved asphalt pavement" or "old pavement", missing key defects such as dislocation and depression at the joint. Even if the joint is partially covered, the relative position of the sampling point and the joint is inconsistent due to the deviation, resulting in "pseudo-flatness error" when the data is spliced later, which cannot reflect the true state of the joint, resulting in reduced detection accuracy. SUMMARY
[0004] To solve the above technical problems, the present application provides a flatness detection device for asphalt concrete joint treatment, which comprises a shell, a detection device, and a plurality of drive motors fixedly connected to the outer wall of the shell. A stabilizing mechanism is fixedly connected to the inner wall of the shell, and the stabilizing mechanism is used to stabilize the detection mechanism. A limiting mechanism is slidably connected to the outer wall of the stabilizing mechanism, and the limiting mechanism is used to limit the movement position of the detector. A balancing mechanism is slidably connected to the outer wall of the limiting mechanism, and the balancing mechanism is used to balance the speed of the detection vehicle on both sides. A detection motor is fixedly connected to the inner wall of the shell, a rotating plate is fixedly connected to the outer wall of the detection motor, a connecting block is fixedly connected to the outer wall of the rotating plate, and a connecting rod is rotatably connected to the inner wall of the connecting block.
[0005] In use, first place the detection vehicle at the desired detection position, then start the drive motor, so that the drive motor can drive the detection vehicle to start detecting the flatness of the joint. Preferably, the stabilizing mechanism comprises: The stabilizing component is rotatably connected to the inner wall of the connecting rod at its outer wall. The connecting component is fixedly connected to the outer wall of the stabilizing component.
[0006] Preferably, the limiting mechanism includes: The limiting component is slidably connected to the outer wall of the connecting component; The support component is fixedly connected to the outer wall of the drive motor.
[0007] Preferably, the balancing mechanism includes: The movable component is slidably connected to the outer wall of the supporting component. The balancing component is rotatably connected to the outer wall of the moving component.
[0008] Preferably, the stabilizing component includes a telescopic rod rotatably connected to the inner wall of the connecting rod, a rotating rod rotatably connected to the outer wall of the telescopic rod, and a connecting plate rotatably connected to the outer wall of the rotating rod. The outer wall of the telescopic rod is rotatably connected to the inner wall of the rotating plate.
[0009] During inspection, the inspection vehicle spans the seam for vertical scanning. However, the shaking perpendicular to the seam caused by the equipment's operation can lead to misjudgments. Stabilizing components are installed on both sides of the inspection device. The up-and-down shaking of the inspection vehicle causes the rotating plates on both sides to shake up and down as well. This movement of the rotating plates causes the connecting blocks on both sides to move, resulting in the connection between the connecting rod and the connecting block moving together. Simultaneously, the connecting rod moves its connection with the telescopic rod. When the connecting rod moves downward, it causes the connection between the connecting rod and the telescopic rod to move downward as well. The connecting plate connected to the telescopic rod will remain relatively stationary for a certain period due to the weight of the equipment on it and the effect of inertia. At this time, the telescopic rod will be forced to extend, while the inspection device located between the connecting plates will remain relatively stationary. When the inspection vehicle continues to move, it will be subjected to high-frequency, continuous short-distance up-and-down shaking. At this time, the stabilizing components can reduce the impact of the vibration on the inspection device, allowing the inspection device to inspect the seam. Preferably, the connecting assembly includes two sliding grooves fixedly connected to the outer wall of the connecting plate, two connecting shafts slidably connected to the inner walls of the two sliding grooves, and several limiting springs sleeved on the outer walls of the two connecting shafts; The outer walls of the two connecting shafts are fixedly connected to the outer wall of the detection device.
[0010] When the new asphalt pavement is detected, due to the slight elasticity or local incomplete densification when it is just compacted, when one side of the detection vehicle drives on the new pavement, the pavement will be slightly compressed to produce subsidence, while the old pavement has been basically compacted or has formed a dense structure, at this time, the detection vehicle driving on the joint will produce inclination, and since the detection device needs to detect the joint vertically, the inclination of the vehicle body will cause the detection reference surface of the detection device to deviate, thereby causing detection error, at this time, when the vehicle body tilts to one side, the connecting shaft connected to the detection device will slide along the sliding grooves on both sides to the lowest point, so that the detection device always maintains a relatively vertical state to the joint, and since the sliding groove is thin in the middle and thick at both ends, when the connecting shaft slides under the drive of the detection device, the limiting rings on both sides of the connecting shaft will tightly contact the sliding groove under the action of the limiting spring, when the sliding groove tilts under the drive of the vehicle body, the connecting shaft will slide along the sliding groove to the thick end, at this time, the limiting rings on both sides of the sliding groove will weaken the sliding speed of the connecting shaft under the action of the limiting springs on both sides, and the shaking during driving will cause the connecting shaft to slide in the sliding groove, and at this time, the limiting ring and the limiting spring limit the sliding speed, thereby reducing the influence of the shaking of the vehicle body on the detection device. Preferably, the limiting assembly comprises a plurality of limiting rings sleeved on the outer walls of the two connecting shafts, two fixed nuts sleeved on the outer walls of the two connecting shafts, and two spacers sleeved on the outer walls of the two connecting shafts.
[0011] Preferably, the supporting assembly comprises a plurality of supporting shafts fixedly connected to the outer walls of the plurality of driving motors, a plurality of wheels fixedly connected to the outer walls of the plurality of supporting shafts, and two side plates fixedly connected to the outer wall of the shell.
[0012] When the vehicle drives on the joint, if the temperature of the new asphalt pavement is high, the surface asphalt may be slightly sticky, and the wheels will generate resistance with the asphalt surface, causing the wheels on one side to travel a shorter distance than the wheels on the other side, at this time, due to the different travel distances of the wheels on both sides, the travel route deviates, thereby reducing the detection progress. Preferably, the moving assembly comprises a plurality of moving rings slidably connected to the outer walls of the plurality of supporting shafts, a plurality of moving rods fixedly connected to the outer walls of the plurality of moving rings, a plurality of fixed rings fixedly connected to the outer walls of the plurality of supporting shafts, and a plurality of return springs fixedly connected to the outer walls of the plurality of fixed rings. The outer walls of the plurality of return springs away from one end of the fixed ring are fixedly connected to the outer walls of the moving ring.
[0013] Preferably, the balancing assembly comprises a plurality of supporting rods one rotatably connected to the outer walls of the plurality of moving rings, a plurality of supporting rods two rotatably connected to the outer walls of the plurality of fixed rings, and a plurality of counterweights rotatably connected to the inner walls of the plurality of supporting rods one. Since the linear speed of the wheel driving on the old road is larger than that on the other side, the centrifugal force on the weight block on this side is large, so that the weight block is far away from the supporting shaft, when the weight block moves, the connecting part of the supporting rod one is far away from the supporting shaft, at this time, the supporting rod two rotates around the connecting part with the fixed ring, at the same time, the supporting rod one drives the movable ring to be close to the fixed ring and compresses the return spring, the movement of the movable ring drives the movable rod to be close to the side plate and causes the movable rod and the side plate to rub each other, so that the rotating speed of the fixed ring is reduced, finally, the speed of the supporting shaft is reduced, further, the speed of the wheel on the old road is reduced under the action of the above mechanism, so that the influence of the deviation of the detection route on the detection result due to the difference in friction between the new and old roads is reduced. The outer wall of the weight block is rotationally connected with the inner wall of the supporting rod two.
[0014] When the joint is detected, since the friction on the old road is small due to long-time use, or there may be oil stains on the newly paved road, the wheel may slip, at this time, when the wheel slips, the rotating speed of the supporting shaft driven by the wheel is instantaneously increased, so that the centrifugal force on the weight block is increased, the weight block is rapidly far away from the supporting shaft, further, the movement of the weight block drives the movable ring to be close to the side plate, at the same time, the surface of the movable rod contacts the surface of the side plate and rubs each other, so that the movable rod limits the rotation of the supporting shaft, reduces the influence of the posture shaking of the detection vehicle and the driving distance of the two sides due to the wheel slip, and enhances the detection precision.
[0015] The present application has the following beneficial effects: When the trolley drives on the joint, if the temperature of the newly paved asphalt road is high, the surface of the asphalt may be slightly sticky, the wheel will generate resistance with the surface of the asphalt, so that the driving distance of the wheel on one side is shorter than that on the other side, at this time, since the driving distances of the wheels on the two sides are different, the driving route is deviated, so that the detection progress is reduced, at this time, since the linear speed of the wheel driving on the old road is larger than that on the other side, the centrifugal force on the weight block on this side is large, so that the weight block is far away from the supporting shaft, when the weight block moves, the connecting part of the supporting rod one is far away from the supporting shaft, at this time, the supporting rod two rotates around the connecting part with the fixed ring, at the same time, the supporting rod one drives the movable ring to be close to the fixed ring and compresses the return spring, the movement of the movable ring drives the movable rod to be close to the side plate and causes the movable rod and the side plate to rub each other, so that the rotating speed of the fixed ring is reduced, finally, the speed of the supporting shaft is reduced, further, the speed of the wheel on the old road is reduced under the action of the above mechanism, so that the influence of the deviation of the detection route on the detection result due to the difference in friction between the new and old roads is reduced; (2) When testing newly paved asphalt pavement, the pavement may have slight elasticity or be partially incompletely compacted when it is just compacted. When one side of the testing vehicle is driving on the newly paved pavement, the pavement will slightly compress and sink, while the old pavement has been basically compacted or has formed a dense structure. At this time, the testing vehicle driving at the joint will tilt. Since the testing device needs to perform vertical testing at the joint, the tilt of the vehicle will cause the testing reference plane of the testing device to shift, thus causing testing errors. At this time, when the vehicle tilts to one side, the connecting shaft connected to the testing device will slide along the sliding grooves on both sides to the lowest point, causing the testing device to tilt. The device is always kept relatively perpendicular to the joint. At the same time, since the sliding groove is thin in the middle and thick at both ends, when the detection device drives the connecting shaft to slide, the limiting rings on both sides of the connecting shaft will be tightly attached to the sliding groove under the action of the limiting spring. When the sliding groove is tilted by the vehicle body, the connecting shaft will slide along the sliding groove towards the thicker ends. At this time, the limiting rings on both sides of the sliding groove will reduce its sliding speed under the action of the limiting springs on both sides. At the same time, the shaking during driving will cause the connecting shaft to slide in the sliding groove. The limiting rings and limiting springs will restrict it to a certain extent, thereby reducing the impact of vehicle body shaking on the detection device. (3) In this invention, the inspection vehicle spans across the seam to inspect the seam and scans vertically. The shaking of the equipment perpendicular to the seam during operation can cause misjudgment during inspection. Stabilizing components are set on both sides of the inspection device. When the inspection vehicle shakes up and down, it will cause the rotating plates on both sides to shake up and down together. When the rotating plates move up and down, they will cause the connecting blocks on both sides to move, which will cause the connection between the connecting rod and the connecting block to move together. At the same time, the connecting rod will cause the connection between the connecting rod and the telescopic rod to move together. When the connecting rod moves down, it will cause the connection between the connecting rod and the telescopic rod to move down together. The connecting plate connected to the telescopic rod will remain relatively stationary for a certain period of time due to the weight of the equipment on it and the inertia. At this time, the telescopic rod will be forced to extend, and the inspection device located between the connecting plates will remain relatively stationary. When the inspection vehicle continues to move, it will be subjected to high-frequency continuous up and down short-distance shaking. At this time, under the action of the stabilizing components, the impact of the vibration on the inspection vehicle on the inspection device can be reduced, so that the inspection device can inspect the seam. (4) The present application can detect the joint, and the old road surface has small friction due to long-time use, or the newly paved road surface may have oil stains, etc., which can cause the wheel to slip, at this time, when the wheel slips, the rotation speed of the supporting shaft driven by the wheel will increase instantaneously, and the centrifugal force acting on the counterweight on the supporting shaft will increase, causing the counterweight to move away from the supporting shaft, further, the movement of the counterweight will drive the movable ring to move close to the side plate, at the same time, the surface of the movable rod will contact the surface of the side plate and rub against the side plate, causing the movable rod to limit the rotation of the supporting shaft, reducing the influence of the posture of the detection vehicle shaking and the distance of the two sides due to the wheel slipping, and enhancing the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0017] Figure 1 The present application is a schematic diagram of the overall structure; Figure 2 The present application is a schematic diagram of the overall structure; Figure 3 The present application is a schematic diagram of the working state of the detection device; Figure 4 The present application is a schematic diagram of the stabilizing mechanism; Figure 5 The present application is a schematic diagram of the stabilizing assembly; Figure 6 The present application is a schematic diagram of the connecting assembly; Figure 7 The present application is Figure 6 The present application is a schematic diagram of the connecting assembly; Figure 8 The present application is a schematic diagram of the balancing mechanism; Figure 9 The present application is a schematic diagram of the movable assembly; Figure 10 The present application is a schematic diagram of the balancing assembly.
[0018] In the drawings, the components represented by each reference numeral are listed as follows: In the figure: 1, stabilizing mechanism; 2, limiting mechanism; 3, balancing mechanism; 11, stabilizing assembly; 12, connecting assembly; 13, shell; 14, driving motor; 15, detection device; 21, limiting assembly; 22, supporting assembly; 31, movable assembly; 32, balancing assembly; 111, detection motor; 112, rotating plate; 113, connecting block; 114, connecting rod; 115, rotating rod; 116, telescopic rod; 117, connecting plate; 121, sliding groove; 122, connecting shaft; 123, limiting spring; 211, limiting ring; 212, fixed nut; 213, gasket; 221, supporting shaft; 222, wheel; 223, side plate; 311, movable ring; 312, movable rod; 313, fixed ring; 314, return spring; 321, supporting rod one; 322, supporting rod two; 323, counterweight. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0020] Embodiment one, please refer to Figure 1 Figure 6 The present application is a flatness detection device for asphalt concrete joint treatment, which comprises a shell 13 and a detection device 15, a plurality of driving motors 14 are fixedly connected to the outer wall of the shell 13, and further comprising: a stabilizing mechanism 1, the outer wall of the stabilizing mechanism 1 is fixedly connected to the inner wall of the shell 13, and the stabilizing mechanism 1 is used for stabilizing the detection mechanism; a limiting mechanism 2, the inner wall of the limiting mechanism 2 is slidingly connected to the outer wall of the stabilizing mechanism 1, and the limiting mechanism 2 is used for limiting the movable position of the detection instrument; a balancing mechanism 3, the inner wall of the balancing mechanism 3 is slidingly connected to the outer wall of the limiting mechanism 2, and the balancing mechanism 3 is used for balancing the speed on both sides of the detection vehicle; a detection motor 111 is fixedly connected to the inner wall of the shell 13, a rotating plate 112 is fixedly connected to the outer wall of the detection motor 111, a connecting block 113 is fixedly connected to the outer wall of the rotating plate 112, and a connecting rod 114 is rotatably connected to the inner wall of the connecting block 113.
[0021] In use, first, the detection vehicle is placed at a suitable position for detection, then the driving motor 14 is started, so that the driving motor 14 can drive the detection vehicle to start detecting the flatness of the joint; The stabilizing mechanism 1 comprises: The stable assembly 11 is rotationally connected at the outer wall of the stable assembly 11 and the inner wall of the connecting rod 114; The connecting assembly 12 is fixedly connected at the outer wall of the connecting assembly 12 and the outer wall of the stable assembly 11.
[0022] The limiting mechanism 2 comprises: The limiting assembly 21 is slidingly connected at the inner wall of the limiting assembly 21 and the outer wall of the connecting assembly 12; The supporting assembly 22 is fixedly connected at the outer wall of the supporting assembly 22 and the outer wall of the driving motor 14.
[0023] The balancing mechanism 3 comprises: The movable assembly 31 is slidingly connected at the inner wall of the movable assembly 31 and the outer wall of the supporting assembly 22; The balancing assembly 32 is rotationally connected at the inner wall of the balancing assembly 32 and the outer wall of the movable assembly 31.
[0024] The stable assembly 11 comprises a telescopic rod 116 rotationally connected at the inner wall of the connecting rod 114, the outer wall of the telescopic rod 116 is rotationally connected with a rotating rod 115, the outer wall of the rotating rod 115 is rotationally connected with a connecting plate 117; The outer wall of the telescopic rod 116 is rotationally connected with the inner wall of the rotating plate 112.
[0025] When detecting, the detection vehicle is across the joint, so as to detect the joint, and the vertical scanning, and the shaking of the equipment perpendicular to the joint during the operation will cause the misjudgment during the detection, and the stable assembly 11 is arranged on both sides of the detection device 15, at this time, the up and down shaking of the detection vehicle will drive the rotating plate 112 on both sides to shake up and down, at this time, the up and down movement of the rotating plate 112 will drive the connecting block 113 on both sides to move, thereby causing the connecting rod 114 and the connecting block 113 to move together, at the same time, the connecting rod 114 will drive the connecting rod 116 to move together, when the connecting rod 114 moves downward, the connecting rod 114 and the telescopic rod 116 will move downward together, the connecting plate 117 connected with the telescopic rod 116 will be relatively static within a certain time due to the weight of the equipment on the connecting plate 117 under the action of inertia, at this time, the telescopic rod 116 will be forced to elongate, and the detection device 15 between the connecting plates 117 will remain relatively static, when the detection vehicle continuously drives, it will be subjected to high-frequency continuous up and down short-distance shaking, at this time, under the action of the stable assembly 11, the influence of the vibration on the detection device 15 can be weakened, so that the detection device 15 can detect the joint; The connecting assembly 12 comprises two sliding grooves 121 fixedly connected at the outer wall of the connecting plate 117, two connecting shafts 122 are slidingly connected at the inner wall of the two sliding grooves 121, and a plurality of limiting springs 123 are sleeved at the outer wall of the two connecting shafts 122; The outer wall of the two connecting shafts 122 is fixedly connected with the outer wall of the detection device 15.
[0026] When the detection vehicle drives on the new pavement, the pavement will be slightly compressed and sink, while the old pavement has been basically compacted or has formed a dense structure. At this time, the detection vehicle driving on the joint will tilt, and the tilt of the vehicle body will cause the detection reference surface of the detection device 15 to deviate, thereby causing detection errors. At this time, when the vehicle body tilts to one side, the connecting shaft 122 connected to the detection device 15 will slide to the lowest point along the sliding groove 121 on both sides, so that the detection device 15 always maintains a relatively vertical state to the joint. Since the sliding groove 121 is thin in the middle and thick at both ends, when the detection device 15 drives the connecting shaft 122 to slide, the limiting rings 211 on both sides of the connecting shaft 122 will tightly adhere to the sliding groove 121 under the action of the limiting springs 123. When the sliding groove 121 tilts under the driving of the vehicle body, the connecting shaft 122 will slide to the thick end along the sliding groove 121. At this time, the limiting rings 211 on both sides of the sliding groove 121 will weaken the sliding speed of the connecting shaft 122 under the action of the limiting springs 123 on both sides, and the shaking during driving will cause the connecting shaft 122 to slide in the sliding groove 121. At this time, the limiting rings 211 and the limiting springs 123 limit the sliding speed of the connecting shaft 122, thereby reducing the influence of the shaking of the vehicle body on the detection device 15. Example two, please refer to Figure 2 Figure 10 The present application is a flatness detection device for asphalt concrete joint treatment. Based on example one, the limiting assembly 21 includes a plurality of limiting rings 211 sleeved on the outer wall of the two connecting shafts 122. The outer wall of the two connecting shafts 122 is sleeved with two fixed nuts 212 and two spacers 213.
[0027] The support assembly 22 includes a plurality of support shafts 221 fixedly connected to the outer wall of the plurality of drive motors 14. The outer wall of the plurality of support shafts 221 is fixedly connected with a plurality of wheels 222. The outer wall of the housing 13 is fixedly connected with two side plates 223.
[0028] When the vehicle drives on the joint, if the temperature of the newly paved asphalt pavement is relatively high, the surface asphalt may be in a slightly sticky state, and the wheels 222 will generate resistance with the asphalt surface, causing the wheels 222 on one side to travel a shorter distance than the wheels 222 on the other side. At this time, due to the different travel distances of the wheels 222 on both sides, the driving route is offset, thereby reducing the detection progress. The movable assembly 31 comprises a plurality of movable rings 311 slidably connected to the outer walls of a plurality of support shafts 221, a plurality of movable rods 312 fixedly connected to the outer walls of the movable rings 311, a plurality of fixed rings 313 fixedly connected to the outer walls of the support shafts 221, and a plurality of return springs 314 fixedly connected to the outer walls of the fixed rings 313 away from the fixed rings 313. The outer walls of the ends of the plurality of return springs 314 away from the fixed rings 313 are fixedly connected to the outer walls of the movable rings 311.
[0029] The balancing assembly 32 comprises a plurality of support rods one 321 rotatably connected to the outer walls of the movable rings 311, a plurality of support rods two 322 rotatably connected to the outer walls of the fixed rings 313, and a plurality of counterweights 323 rotatably connected to the inner walls of the support rods one 321. Since the linear speed of the wheels 222 on the old road surface is greater than that on the other side, the centrifugal force acting on the counterweights 323 on this side is greater, causing the counterweights 323 to move away from the support shafts 221. When the counterweights 323 move, the connecting portions of the support rods one 321 move away from the support shafts 221. At this time, the support rods two 322 rotate around the connecting portions with the fixed rings 313. Meanwhile, the movable rings 311 are driven by the counterweights 323 to move towards the fixed rings 313, compressing the return springs 314. The movement of the movable rings 311 drives the movable rods 312 to move towards the side plates 223, causing the movable rods 312 to rub against the side plates 223, thereby reducing the rotational speed of the fixed rings 313, and ultimately reducing the speed of the support shafts 221. Further, the speed of the wheels 222 on the old road surface is reduced under the action of the above mechanism, thereby reducing the influence of the deviation of the detection route on the detection result due to the difference in friction between the new and old road surfaces. The outer walls of the plurality of counterweights 323 are rotatably connected to the inner walls of the support rods two 322.
[0030] When detecting the joint seams, the friction on the old road surface is small due to long-term use, or there may be oil stains on the newly paved road surface, which may cause the wheels 222 to slip. At this time, when the wheels 222 slip, the rotational speed of the support shafts 221 driven by the wheels 222 instantaneously increases, thereby increasing the centrifugal force acting on the counterweights 323, causing the counterweights 323 to rapidly move away from the support shafts 221. Further, the movement of the counterweights 323 drives the movable rings 311 to move towards the side plates 223. Meanwhile, the surfaces of the movable rods 312 come into contact with the surfaces of the side plates 223, rubbing against each other, thereby restricting the rotation of the support shafts 221 by the movable rods 312, reducing the influence of the posture shaking of the detection vehicle and the driving distance on the two sides caused by the slippage of the wheels 222, and enhancing the detection accuracy.
[0031] One specific application of the embodiment is: in use, first place the detection vehicle in the appropriate position for detection, then start the drive motor 14, so that the drive motor 14 can drive the detection vehicle to start detecting the flatness of the joint; When detecting, the detection vehicle is across the joint, so as to detect the joint vertically. The shaking of the equipment perpendicular to the joint during operation may cause misjudgment during detection. The stabilizing assembly 11 is arranged on both sides of the detection device 15. At this time, the up-and-down shaking of the detection vehicle will drive the rotating plates 112 on both sides to shake up and down. The up-and-down movement of the rotating plates 112 will drive the connecting blocks 113 on both sides to move, thereby causing the connecting rods 114 and the connecting blocks 113 to move together. At the same time, the connecting rods 114 will drive the connecting rods 114 and the connecting rods 116 to move together. When the connecting rods 114 move downward, the connecting rods 114 and the connecting rods 116 will move downward together. The connecting plates 117 connected with the telescopic rods 116 will remain relatively stationary for a certain period of time due to the weight of the equipment thereon under the action of inertia. At this time, the telescopic rods 116 will be forced to elongate, and the detection device 15 between the connecting plates 117 will remain relatively stationary. When the detection vehicle continues to travel, it will be subjected to high-frequency continuous up-and-down short-distance shaking. At this time, under the action of the stabilizing assembly 11, the influence of the vibration on the detection device 15 can be weakened, so that the detection device 15 can detect the joint; When inspecting newly paved asphalt pavement, due to the slight elasticity or incomplete compaction in its initial compaction, the pavement may slightly compress and sink when one side of the inspection vehicle travels on the newly paved surface. In contrast, the old pavement is already largely compacted or has formed a dense structure. Therefore, the inspection vehicle traveling at the joint will tilt. Since the inspection device 15 requires perpendicular inspection of the joint, this tilt will cause the inspection reference plane of the device 15 to shift, resulting in inspection errors. When the vehicle tilts to one side, the internal mechanisms of the inspection device 15 lower its center of gravity, causing the connecting shaft 122 connected to the device 15 to slide along the sliding grooves 121 on both sides to its lowest point, ensuring that the inspection device 15 always maintains a perpendicular alignment with the joint. In the vertical state, since the sliding groove 121 is thin in the middle and thick at both ends, when the detection device 15 drives the connecting shaft 122 to slide, the limiting rings 211 on both sides of the connecting shaft 122 will be tightly attached to the sliding groove 121 under the action of the limiting spring 123. When the sliding groove 121 is tilted by the vehicle body, the connecting shaft 122 will slide along the sliding groove 121 towards the thicker ends. At this time, the limiting rings 211 on both sides of the sliding groove 121 will reduce its sliding speed to a certain extent under the action of the limiting spring 123 on both sides. At the same time, the shaking during driving will cause the connecting shaft 122 to slide in the sliding groove 121. At this time, the limiting rings 211 and the limiting spring 123 will restrict it to a certain extent, thereby reducing the impact of vehicle body shaking on the detection device 15. When the trolley travels over the joint, if the newly paved asphalt pavement is hot, the surface asphalt may be slightly sticky. The wheels 222 will experience resistance against the asphalt surface, causing one side's wheels 222 to travel a shorter distance than the other. This difference in travel distance causes a deviation in the travel path, reducing the detection progress. Meanwhile, the linear velocity of the wheels 222 traveling on the old pavement is greater than the other side, resulting in a greater centrifugal force on the counterweight 323 on that side. This causes the counterweight 323 to move away from the support shaft 221. As the counterweight 323 moves, it pulls the connection of the support rod 321 away from the support shaft 221. The second support rod 322 will rotate around the connection with the fixed ring 313. At the same time, the first support rod 321 will drive the movable ring 311 to approach the fixed ring 313 under the action of the counterweight 323, and compress the return spring 314. The movement of the movable ring 311 will drive the movable rod 312 to approach the side plate 223, and cause the movable rod 312 to rub against the side plate 223, thereby reducing the rotation speed of the fixed ring 313. Ultimately, this will lead to a decrease in the speed of the support shaft 221. Furthermore, the speed of the wheel 222 on the old road surface side will decrease under the action of the above mechanism, thereby reducing the impact of the deviation of the detection route caused by the difference in friction between the new and old road surfaces on the detection results. When the joint is detected, the old road surface is used for a long time, the friction is small, or the new road surface may be contaminated with oil, etc., which may cause the wheel 222 to slip, at this time, when the wheel 222 slips, the rotation speed of the support shaft 221 driven by the wheel 222 will increase instantaneously, and the centrifugal force on the counterweight 323 will increase, causing the counterweight 323 to move away from the support shaft 221 rapidly, further, the movement of the counterweight 323 will drive the movable ring 311 to move close to the side plate 223, at the same time, the surface of the movable rod 312 will contact the surface of the side plate 223, and the movable rod 312 will be restricted from rotating by the side plate 223, reducing the influence of the posture of the detection vehicle and the distance of the two sides caused by the wheel 222 slipping, and enhancing the detection accuracy.
[0032] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. A flatness detection device for asphalt concrete joint treatment, comprising a shell (13) and a detection device (15), a plurality of drive motors (14) are fixedly connected to the outer wall of the shell (13), characterized in that, Also include: Stable mechanism (1), the outer wall of stable mechanism (1) is fixedly connected with the inner wall of shell (13), and the stable mechanism (1) is used for stabilizing detection mechanism; Limiting mechanism (2), the inner wall of limiting mechanism (2) is slidingly connected with the outer wall of stable mechanism (1), and the limiting mechanism (2) is used for limiting the active position of detection instrument; Balancing mechanism (3), the inner wall of balancing mechanism (3) is slidingly connected with the outer wall of limiting mechanism (2), and the balancing mechanism (3) is used for balancing the speed on both sides of detection vehicle; The inner wall of shell (13) is fixedly connected with detection motor (111), the outer wall of detection motor (111) is fixedly connected with rotating plate (112), the outer wall of rotating plate (112) is fixedly connected with connecting block (113), and the inner wall of connecting block (113) is rotatably connected with connecting rod (114).
2. The flatness detection device for asphalt concrete joint treatment according to claim 1, characterized in that: The stable mechanism (1) comprises: Stable component (11), the outer wall of stable component (11) is rotatably connected with the inner wall of connecting rod (114); Connecting component (12), the outer wall of connecting component (12) is fixedly connected with the outer wall of stable component (11).
3. The flatness detection device for asphalt concrete joint treatment according to claim 1, characterized in that: The limiting mechanism (2) comprises: Limiting component (21), the inner wall of limiting component (21) is slidingly connected with the outer wall of connecting component (12); Support component (22), the outer wall of support component (22) is fixedly connected with the outer wall of drive motor (14).
4. The flatness detection device for asphalt concrete joint treatment according to claim 3, characterized in that: The balancing mechanism (3) comprises: Movable component (31), the inner wall of movable component (31) is slidingly connected with the outer wall of support component (22); Balancing component (32), the inner wall of balancing component (32) is rotatably connected with the outer wall of movable component (31).
5. The flatness detection device for asphalt concrete joint treatment according to claim 2, characterized in that: The stable component (11) comprises telescopic rod (116) rotatably connected with the inner wall of connecting rod (114), the outer wall of telescopic rod (116) is rotatably connected with rotating rod (115), and the outer wall of rotating rod (115) is rotatably connected with connecting plate (117); The outer wall of telescopic rod (116) is rotatably connected with the inner wall of rotating plate (112).
6. The flatness detection device for asphalt concrete joint treatment according to claim 2, characterized in that: The connecting component (12) comprises two sliding grooves (121) fixedly connected with the outer wall of connecting plate (117), two connecting shafts (122) are slidingly connected with the inner wall of two sliding grooves (121), and a plurality of limiting springs (123) are sleeved with the outer wall of two connecting shafts (122); The outer wall of two connecting shafts (122) is fixedly connected with the outer wall of detection device (15).
7. The flatness detection device for asphalt concrete joint treatment according to claim 3, characterized in that: The limiting component (21) comprises a plurality of limiting rings (211) sleeved with the outer wall of two connecting shafts (122), two fixed nuts (212) are sleeved with the outer wall of two connecting shafts (122), and two spacers (213) are sleeved with the outer wall of two connecting shafts (122).
8. The flatness detection device for asphalt concrete joint treatment according to claim 3, characterized in that: The support assembly (22) comprises a plurality of support shafts (221) fixedly connected to the outer wall of a plurality of driving motors (14), and a plurality of wheels (222) are fixedly connected to the outer wall of the support shafts (221).
9. The flatness detection device for asphalt concrete joint treatment according to claim 4, characterized in that: The movable assembly (31) comprises a plurality of movable rings (311) slidably connected to the outer wall of the support shafts (221), a plurality of movable rods (312) are fixedly connected to the outer wall of the movable rings (311), a plurality of fixed rings (313) are fixedly connected to the outer wall of the support shafts (221), and a plurality of reset springs (314) are fixedly connected to the outer wall of the fixed rings (313). The outer wall of the far end of the reset spring (314) from the fixed ring (313) is fixedly connected to the outer wall of the movable ring (311).
10. The flatness detection device for asphalt concrete joint treatment according to claim 9, characterized in that: The balancing assembly (32) comprises a plurality of support rods one (321) rotatably connected to the outer wall of the movable rings (311), a plurality of support rods two (322) rotatably connected to the outer wall of the fixed rings (313), and a plurality of counterweights (323) rotatably connected to the inner wall of the support rods one (321). The outer wall of the counterweight (323) is rotatably connected to the inner wall of the support rod two (322).