CN216193848U - Road surface flatness measuring instrument - Google Patents
Road surface flatness measuring instrument Download PDFInfo
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- CN216193848U CN216193848U CN202122623863.2U CN202122623863U CN216193848U CN 216193848 U CN216193848 U CN 216193848U CN 202122623863 U CN202122623863 U CN 202122623863U CN 216193848 U CN216193848 U CN 216193848U
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Abstract
The utility model provides a road surface flatness measuring instrument, which relates to the technical field of road surface quality measuring equipment and comprises the following components: the cleaning device and the measuring device are arranged on the frame; when the measurement is carried out, the frame moves along the direction from the measuring device to the cleaning device, the cleaning device is used for cleaning sundries on the road surface to be measured, and the measuring device is used for carrying out flatness measurement on the cleaned road surface to be measured; therefore, the road surface flatness measuring instrument provided by the utility model can improve the accuracy of the road surface flatness measuring result.
Description
Technical Field
The utility model relates to the technical field of pavement quality measuring equipment, in particular to a pavement flatness measuring instrument.
Background
In recent years, the road construction industry in China is rapidly developed, the total mileage of the vehicles passing on the expressway reaches 16 kilometers, and the vehicles stably live in the world first. With the increasing expansion of the road construction and highway maintenance markets, the demand for the innovation of the road detection technology is increasing day by day, and how to more quickly and effectively evaluate the flatness of the road surface is an important subject.
The eight-wheel continuous road flatness measuring instrument is a road flatness detecting instrument widely used in China at present, a pair of walking wheels is arranged on each of the front and rear sides of the instrument, a frame with the length of 3m is arranged in the middle, height difference change in the driving process is measured by the contact of measuring wheels arranged in the middle of the frame with the road, and standard deviation is automatically output by external equipment. Compared with a 3m ruler method, the method has higher test efficiency and more accurate precision, and greatly reduces the labor requirement; compared with a vehicle-mounted bump accumulation instrument method, the test is less influenced by the variation factors of the instrument, and is easier to calibrate, maintain and use; compared with a hand-push type section instrument method, the test speed is greatly increased, the test area is wider, and the dynamic situation borne by the actual running of the vehicle can be simulated.
In the process of measuring, the measuring wheel of the continuous eight-wheel road surface flatness measuring instrument can be easily influenced by sundries such as broken stones and branches existing on a road surface, so that the error of the test data is enlarged, and in addition, in the measuring process, the flatness of the road surface with the width contacted by the measuring wheel in the advancing direction can only be tested, the flatness of the actual road surface wheel track range can not be represented, so that the test precision and the application range are limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a road surface flatness measuring instrument, which is used for solving the problems in the prior art and improving the accuracy of a road surface flatness measuring result.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides a road surface flatness measuring instrument, comprising: the cleaning device and the measuring device are arranged on the frame; when the road surface flatness measuring device is used for measuring the flatness of the cleaned road surface to be measured, the frame moves along the direction from the measuring device to the cleaning device, the cleaning device is used for cleaning sundries on the road surface to be measured, and the measuring device is used for measuring the flatness of the cleaned road surface to be measured.
Preferably, measuring device is including a plurality of measuring unit that set up side by side, three is no less than to measuring unit's quantity, and is a plurality of measuring unit all is used for carrying out the roughness to the road surface of awaiting measuring after cleaning and measures.
Preferably, the plurality of measuring units are arranged adjacent to each other in sequence, and the plurality of measuring units can measure the flatness of a road surface with a width of 70cm to 90 cm.
Preferably, the cleaning device is fixedly arranged at the bottom of the frame and comprises two brush rods, one ends of the two brush rods are fixedly connected and located on an extension line of the center line of the frame, the unconnected ends of the two brush rods respectively extend towards the two sides of the frame, and bristles for cleaning the road surface are fixedly arranged at the bottoms of the two brush rods.
Preferably, the bottom of frame has set gradually the preceding running wheel group measuring device and back walking wheel group, preceding running wheel group with the distance between the back walking wheel group is adjustable.
Preferably, the frame comprises a first-stage frame, a second-stage frame and a third-stage frame, the first-stage frame, the second-stage frame and the third-stage frame are sequentially connected, the first-stage frame is spliced with the second-stage frame and can be locked and fixed through a first-stage locking device, the splicing length of the first-stage frame and the second-stage frame can be adjusted, the second-stage frame is spliced with the third-stage frame and can be locked and fixed through a second-stage locking device, and the splicing length of the second-stage frame and the third-stage frame can also be adjusted; the bottom of one-level frame is provided with preceding walking wheelset, the bottom of tertiary frame is provided with back walking wheelset, measuring device set up in the bottom of second grade frame.
Preferably, the locomotive portion of frame is provided with directional control frame, directional control frame is parallelogram or rectangle structure, directional control frame includes four connecting rods, four the connecting rod end to end is articulated to be connected, the bottom of the locomotive portion of frame is provided with two locomotive walking wheels, two the locomotive walking wheel set up respectively in the both sides of locomotive portion, be provided with the chain stay that upwards extends on the locomotive walking wheel, two the top of chain stay is relative with two respectively the connecting rod is articulated, directional control frame's middle part is provided with a drive pole, the both ends of drive pole are articulated respectively in two relatively on the connecting rod, drive pole through a traction lever with the tractor in frame moving direction the place ahead is connected.
Preferably, the traction rod is connected with the driving rod through a bolt, and the traction rod can rotate to the position above the frame.
Preferably, the wheels and the head road wheels in the front walking wheel set and the rear walking wheel set are inflatable wheels.
Preferably, the measuring unit comprises a measuring wheel and a displacement sensor, the measuring wheel is connected with the small bottom fork through a bearing structure, the middle part of the small bottom fork is rotatably connected with the frame through a fixed rotating shaft, and the upper part of the small bottom fork is connected with a displacement measuring end of the displacement sensor through a transmission rod; the displacement sensor can be connected with the centralized processor through a data line.
Compared with the prior art, the utility model has the following technical effects:
the pavement evenness measuring instrument provided by the utility model has the function of cleaning the pavement, and is different from the traditional pavement evenness measuring instrument, the traditional pavement evenness measuring instrument is easily influenced by sundries such as broken stones, branches and the like on the tested pavement in the testing process, and the measuring result is inaccurate.
Furthermore, the measuring device is different from the existing road surface flatness measuring device, the existing road surface flatness measuring device is only provided with one measuring unit in the middle of the lower portion of the frame, the measuring range is small, the measuring result of the measuring unit cannot represent the flatness of the range of the actual road surface wheel track, and the measuring width of the road surface flatness measuring device provided by the utility model reaches 80cm, so that the flatness of the road surface wheel track can be comprehensively reflected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a pavement flatness measuring apparatus provided in the present invention;
FIG. 2 is a top view of the road flatness measuring apparatus provided in the present invention;
in the figure: the device comprises a traction rod 1, a direction control frame 2, a primary frame 3, a brush rod 4, bristles 5, a bottom fork 6, a secondary frame 7, a plug 8, a measuring device 9, a displacement sensor 91, a centralized processor 92, a measuring wheel 93, a small bottom fork 94, an inflatable wheel 10, a tertiary frame 11 and a fixed pull rod 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a road surface flatness measuring instrument, which solves the problems in the prior art and improves the measuring accuracy.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The utility model provides a road surface flatness measuring instrument, as shown in figures 1-2, comprising: the cleaning device and the measuring device 9 are arranged on the frame; when the road surface flatness measuring device is used for measuring the flatness of the cleaned road surface to be measured, the frame moves along the direction from the measuring device 9 to the cleaning device, the cleaning device is used for cleaning sundries on the road surface to be measured, and the measuring device 9 is used for measuring the flatness of the cleaned road surface to be measured.
The pavement evenness measuring instrument provided by the utility model has the function of cleaning the pavement, and is different from the traditional pavement evenness measuring instrument, the traditional pavement evenness measuring instrument is easily influenced by sundries such as broken stones, branches and the like on the tested pavement in the testing process, and the measuring result is inaccurate.
Furthermore, the measuring device 9 includes a plurality of measuring units arranged side by side, the number of the measuring units is not less than three, the measuring units are all used for measuring the flatness of the road surface to be measured after cleaning, the measuring units are arranged adjacent to each other in sequence, the measuring units can measure the flatness of the road surface with the width of 70 cm-90 cm, preferably 80cm, the measuring device is different from the existing road surface flatness measuring device, the existing road surface flatness measuring device is only provided with one measuring unit in the middle of the lower portion of the frame, the measuring range is small, the measuring result cannot represent the flatness of the actual road surface wheel track range, and the measuring width of the road surface flatness measuring device provided by the utility model reaches 80cm, and the measuring device can comprehensively reflect the flatness of the road surface wheel track.
Further, cleaning device is fixed to be set up in the bottom of frame, cleaning device includes two brush-holder stud 4, the one end fixed connection of two brush-holder stud 4, two brush-holder stud 4 fixed connection's one end is located the extension line of frame central line, whole shape is "V" type, two brush-holder stud 4 unconnected one end extend to the both sides of frame respectively, the bottom of two brush-holder stud 4 all is fixed and is provided with brush hair 5 that is used for cleaning the road surface, when meetting debris on the road surface, "V" type cleaning device is at the in-process that gos forward, can arrange the obstacle to both sides, prevent that it from being drawn into the measuring unit bottom and influence the test result.
Furthermore, the brush hair 5 is made of a material with moderate hardness, so that sundries such as stones and branches on the advancing route can be laterally discharged when the instrument advances forwards, and the phenomenon of vibration and the like caused by excessive friction force cannot influence the operation of the instrument.
Furthermore, the bottom of the frame is sequentially provided with a front traveling wheel set, a measuring device 9 and a rear traveling wheel set, the distance between the front traveling wheel set and the rear traveling wheel set is adjustable, the frame comprises a primary frame 3, a secondary frame 7 and a tertiary frame 11, the primary frame 3, the secondary frame 7 and the tertiary frame 11 are sequentially connected, the primary frame 3 is spliced with the secondary frame 7 and can be locked and fixed through a primary locking device, the splicing length of the primary frame 3 and the secondary frame 7 can be adjusted, the secondary frame 7 is spliced with the tertiary frame 11 and can be locked and fixed through a secondary locking device, and the splicing length of the secondary frame 7 and the tertiary frame 11 can also be adjusted; the primary locking device and the secondary locking device are selected as the bolts 8, the integral adjusting range of the frame is 2.5m-6.0m so as to be adapted to the range of wheel base of common vehicle types in China, the scales can be engraved on the frame so as to assist in setting the length combination of the frame, and a connecting port is covered with plastic to reduce friction and assist in fixing; one-level frame 3, second grade frame 7 middle part is provided with a plurality of circular bolt holes, through putting down fixing bolt 8, pass circular bolt hole and fix frame length at different levels, the bottom of one-level frame 3 is provided with the walking wheelset that moves ahead, the bottom of tertiary frame 11 is provided with back walking wheelset, measuring device 9 sets up in the bottom of second grade frame 7, with the wheel base size of the suitable motorcycle type of adaptation, and then simulate the vibration response (to the response of road surface roughness) of different motorcycle types (small-size vehicle, the elongated vehicle, pull-type vehicle etc.), and then the travelling comfort of different motorcycle types of evaluation.
Further, the locomotive portion of frame is provided with directional control frame 2, directional control frame 2 is parallelogram or rectangle structure, directional control frame 2 includes four connecting rods, the connecting rod is preferably made of steel sheet, the frame is formed by the welding of square hollow steel tube, four connecting rods end to end hinged connection, the bottom of the locomotive portion of frame is provided with two locomotive walking wheels, two locomotive walking wheels set up respectively in the both sides of locomotive portion, be provided with the chain stay 6 that upwards extends on the locomotive walking wheel, the top of two chain stays 6 is articulated with two relative connecting rods respectively, the middle part of directional control frame 2 is provided with a drive pole, the both ends of drive pole are articulated respectively on two relative connecting rods, the drive pole is connected with the tractor in frame moving direction the place ahead through a traction lever 1, realize the tractor and drive the purpose that the frame turned to.
Furthermore, the traction rod 1 is connected with the driving rod through a bolt, the traction rod 1 can rotate to the upper part of the frame, and the traction rod 1 can be detached, so that the frame can be conveniently stored and transported.
Further, the wheels and the head travelling wheels in the front travelling wheel set and the rear travelling wheel set are inflatable wheels 10, two adjacent inflatable travelling wheels are connected through two fixed pull rods 12, the inflatable travelling wheels are fixed and assisted, meanwhile, the stress of the inflatable travelling wheels is absorbed and counteracted through spring devices, and the wheel jumping phenomenon when the inflatable travelling wheels meet large obstacles, pit grooves and other structures is prevented.
Further, the measuring unit comprises a measuring wheel 93 and a displacement sensor 91, the measuring wheel 93 is connected with a small bottom fork 94 through a bearing structure, the middle part of the small bottom fork 94 is rotatably connected with the frame through a fixed rotating shaft, and the upper part of the small bottom fork 94 is connected with a displacement measuring end of the displacement sensor 91 through a transmission rod; the displacement sensors 91 can be connected with the centralized processor 92 through data lines, the height difference change is recorded independently for a single wheel, data are transmitted to the respective displacement sensors 91, displacement signals are centralized through the centralized processor 92, and external equipment calculates and outputs flatness determination data of the whole wheel track range.
The operation process of the road surface flatness measuring instrument provided by the utility model is as follows:
1. unloading the pavement evenness measuring instrument from a transport vehicle, placing the pavement evenness measuring instrument on a road to be measured, connecting a tractor through a traction rod 1, adjusting the running of the tractor, dragging the instrument to a measuring starting point, and enabling a measuring wheel set to be matched with a wheel track belt;
2. and adjusting the length of the frame according to actual requirements.
3. Connecting external equipment, fixing on the frame, inputting parameters, and starting testing.
4. The tractor moves forward at a constant speed of 5-12km/h for testing, the measuring wheel set transmits the measured height difference data to the displacement sensor 91, and the test result is calculated and output through external equipment by taking 100m as a unit.
5. When the road surface obstacle is met, the V-shaped front-mounted cleaning device discharges the obstacle to two sides in the advancing process, and the obstacle is prevented from being involved into the measuring wheel set to influence the test result.
6. And after the detection of the detected road section is finished, the front vehicle stops slowing, the external equipment is operated to stop recording data, and the detected data is stored and output.
7. And (5) disassembling the external equipment, adjusting the frame to be shortest, loading the instrument, and finishing the operation.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (10)
1. A road surface flatness measuring instrument is characterized in that: the method comprises the following steps: the cleaning device and the measuring device are arranged on the frame; when the road surface flatness measuring device is used for measuring the flatness of the cleaned road surface to be measured, the frame moves along the direction from the measuring device to the cleaning device, the cleaning device is used for cleaning sundries on the road surface to be measured, and the measuring device is used for measuring the flatness of the cleaned road surface to be measured.
2. The road flatness measuring instrument according to claim 1, wherein: the measuring device comprises a plurality of measuring units arranged side by side, the number of the measuring units is not less than three and is a plurality of the measuring units are all used for measuring the flatness of the road surface to be measured after cleaning.
3. The road flatness measuring instrument according to claim 2, wherein: the plurality of measuring units are sequentially arranged adjacently, and can measure the flatness of a road surface with the width of 70 cm-90 cm.
4. The road flatness measuring instrument according to claim 1, wherein: the sweeping device is fixedly arranged at the bottom of the frame and comprises two brush rods, one ends of the brush rods are fixedly connected and two ends of the brush rods are fixedly connected and located on an extension line of the central line of the frame, the unconnected ends of the brush rods extend to two sides of the frame respectively, and the bottoms of the brush rods are fixedly provided with bristles used for sweeping the road surface.
5. The road flatness measuring instrument according to claim 1, wherein: the bottom of frame has set gradually preceding running wheel group measuring device and back walking wheel group, preceding running wheel group with distance between the back walking wheel group is adjustable.
6. The road flatness measuring instrument of claim 5, wherein: the frame comprises a first-stage frame, a second-stage frame and a third-stage frame, the first-stage frame, the second-stage frame and the third-stage frame are sequentially connected, the first-stage frame is spliced with the second-stage frame and can be locked and fixed through a first-stage locking device, the splicing length of the first-stage frame and the second-stage frame can be adjusted, the second-stage frame is spliced with the third-stage frame and can be locked and fixed through a second-stage locking device, and the splicing length of the second-stage frame and the third-stage frame can also be adjusted; the bottom of one-level frame is provided with preceding walking wheelset, the bottom of tertiary frame is provided with back walking wheelset, measuring device set up in the bottom of second grade frame.
7. The road flatness measuring instrument of claim 5, wherein: the locomotive portion of frame is provided with directional control frame, directional control frame is parallelogram or rectangle structure, directional control frame includes four connecting rods, four the connecting rod end to end is articulated to be connected, the bottom of the locomotive portion of frame is provided with two locomotive walking wheels, two the locomotive walking wheel set up respectively in the both sides of locomotive portion, be provided with the chain stay that upwards extends on the locomotive walking wheel, two the top of chain stay is relative with two respectively the connecting rod is articulated, directional control frame's middle part is provided with a drive pole, the both ends of drive pole are articulated respectively to be connected in two relatively on the connecting rod, drive pole through a traction lever with the tractor in frame moving direction the place ahead is connected.
8. The road flatness measuring instrument of claim 7, wherein: the traction rod is connected with the driving rod through a bolt, and the traction rod can rotate to the position above the frame.
9. The road flatness measuring instrument of claim 7, wherein: the wheels in the front traveling wheel set and the rear traveling wheel set and the head traveling wheels are inflatable wheels.
10. The road flatness measuring instrument according to claim 2, wherein: the measuring unit comprises a measuring wheel and a displacement sensor, the measuring wheel is connected with a small bottom fork through a bearing structure, the middle part of the small bottom fork is rotatably connected with the frame through a fixed rotating shaft, and the upper part of the small bottom fork is connected with a displacement measuring end of the displacement sensor through a transmission rod; the displacement sensor is connected with the centralized processor through a data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122623863.2U CN216193848U (en) | 2021-10-29 | 2021-10-29 | Road surface flatness measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122623863.2U CN216193848U (en) | 2021-10-29 | 2021-10-29 | Road surface flatness measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN216193848U true CN216193848U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122623863.2U Active CN216193848U (en) | 2021-10-29 | 2021-10-29 | Road surface flatness measuring instrument |
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| CN (1) | CN216193848U (en) |
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2021
- 2021-10-29 CN CN202122623863.2U patent/CN216193848U/en active Active
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