CN110132217B

CN110132217B - Bridge face flatness detection device

Info

Publication number: CN110132217B
Application number: CN201910550102.3A
Authority: CN
Inventors: 王道领; 吴磊; 刘晓莉; 乐群力; 董安民; 吕申; 刘莉; 黄二磊; 邓斌; 梁宇; 高天祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-09-11
Anticipated expiration: 2039-06-24
Also published as: CN110132217A

Abstract

The invention relates to a bridge deck flatness detection device, which effectively solves the problems that wheel mark marking is complicated and fixed length marking cannot be realized during flatness monitoring; the technical scheme for solving the problem is that the flat car comprises a flat car body, wherein a paint box is arranged on a flat plate, and the paint box is connected with a line drawing device; the flat plate is provided with a marking device positioned at the rear side of the line drawing device, the marking device comprises a disc arranged at the center of the flat plate, wheels of the flat plate car can drive the disc to intermittently rotate through rotation, and the outer edge surface of the disc is provided with a bulge and a push rod; a transverse second supporting plate is arranged on the front side of each push rod, the left and right positions of the second supporting plates are adjustable, the outer end of each second supporting plate is connected with a vertical and transverse rotating disc, the rotating disc can rotate and reset, and an inclined brush is connected to the rotating disc; the push rod moves left and right in a reciprocating mode, the rotary disc can be pushed to rotate in a reciprocating mode, and the brush can brush the ground in the left and right directions.

Description

Bridge face flatness detection device

Technical Field

The invention relates to the field of bridge construction detection, in particular to a bridge deck flatness detection device.

Background

The flatness of the road surface mainly reflects the flatness of a profile curve of a longitudinal section of the road surface. Besides special requirements, a wheel track (80-100 cm away from a lane line) at one side of a traffic lane is taken as a standard position for continuous measurement.

According to the technical standards of pavement evenness test regulations and evenness detectors:

the responsive flatness detector was calibrated as follows:

(1) the calibration road section generally selects more than five road sections, and the road surface conditions have differences; theoretically, the longer the length of the pavement, the better, generally between 150m and 250m is desired.

(2) Before calibration, the road surface needs to be cleaned, and a broom is generally used for cleaning the road surface. After the road surface is cleaned, paint is used for making starting marks and ending marks on the road surface, the paint is used for drawing points, left and right wheel tracks of the road surface are marked, and the width of the left and right wheel tracks can be generally based on the distance between the left wheel and the right wheel of a marked detection vehicle.

(3) For each selected calibration road surface, the flatness detection is carried out by using a calibrated response type flatness detector, and the same road surface is required to be repeatedly detected for more than three times (including three times).

(4) Flatness measurements were performed using standard instrumentation. A precise level or a hand-push type profiler (a road surface vertical section profiler) can be generally adopted to acquire a road surface vertical section profile curve. If a precise level is adopted, sampling points must be marked on the left and right tracks marked on the road surface, and the interval between the sampling points can be about 25-30m generally. The sampling point spacing must be consistent for all road tracks. Because the sampling time of the precision level is long (the automation degree is low), but the detection precision is good, the detection of the longitudinal section of the detected road section is generally only needed to be carried out once, and then the corresponding flatness index (IRI sum) is calculated by software. And the average value of the detection results of the flatness of the left and right wheel tracks is the flatness value of the road surface.

At present, when a standard instrument is used for detecting the flatness, visual inspection is generally adopted, namely, a flatness monitor is directly pushed for monitoring; this may cause a misalignment of the monitoring result; or the tape measure is used for path calibration, the tape measure is inconvenient to fix, needs multiple persons for auxiliary operation, and is greatly influenced by weather; some simple or complex devices are used for calibrating the wheel tracks, but lines drawn by the device are discontinuous and uneven, and most of the lines need complex parts such as moving mechanisms, pumps, sensors and the like, so that the cost is increased, and few devices can mark the lines with fixed length, so that the measurement of the precision level is facilitated. In view of the above, there is a need for a device specifically adapted to assist in tracking marks during flatness monitoring.

Disclosure of Invention

In view of the above situation, in order to solve the problems in the prior art, the present invention aims to provide a bridge deck flatness detecting device, which can effectively solve the problems of tedious trace marking and incapability of fixed length marking during flatness monitoring.

The technical scheme for solving the problem is that the flat car comprises a flat car body consisting of a flat plate, wheels and a pull rod, wherein a paint box is fixedly arranged on the flat plate; the paint box is connected with a line drawing device; the line drawing device comprises two transverse first supporting plates which are symmetrically arranged on a flat plate, and the left and right positions of the first supporting plates are adjustable; the outer end of each first supporting plate is provided with a box body which can move up and down and reset downwards; a pipeline is connected between the box body and the paint box; the lower end of the box body is provided with a roller, and the outer edge surface of the roller is provided with grooves which are uniformly distributed on the circumference; when the flat plate moves forwards, the roller can contact with the ground and rotate, so that the paint flows out of the box body;

the flat plate is provided with a marking device positioned at the rear side of the line drawing device, the marking device comprises a disc arranged at the center of the flat plate, wheels of the flat plate car can drive the disc to intermittently rotate through rotation, and two semicircular bulges are symmetrically arranged on the outer edge surface of the disc; two transverse push rods which are symmetrically distributed left and right are arranged on the flat plate; the push rod and the disc form a cam mechanism; a transverse second supporting plate is arranged on the front side of each push rod, the left and right positions of the second supporting plates are adjustable, the outer end of each second supporting plate is connected with a vertical and transverse rotating disc, the rotating disc can rotate and reset, and an inclined brush is connected to the rotating disc; the push rod moves left and right in a reciprocating way to push the rotating disc to rotate in a reciprocating way, so that the brush brushes the ground in the left and right directions.

The flatness detection device has the advantages of ingenious structure, convenience in manufacturing, contribution to engineering, capability of meeting flatness detection in most of engineering, convenience in providing and capability of ensuring the accuracy of detection data.

Drawings

FIG. 1 is a top view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a three-dimensional schematic view at a in fig. 1.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a perspective view illustrating a fitting relationship between the first support plate and the case.

Fig. 6 is a front sectional view of the cartridge body.

Fig. 7 is a front view of the fitting relationship of the second support plate and the turntable.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 7, the present invention comprises a flat car body composed of a flat plate 1, wheels and a pull rod, wherein a paint box 2 is fixedly arranged on the flat plate 1; the paint box 2 is connected with a line drawing device; the line drawing device comprises two transverse first supporting plates 3 which are symmetrically arranged on a flat plate 1, and the left and right positions of the first supporting plates 3 are adjustable; the outer end of each first supporting plate 3 is provided with a box body 4 which can move up and down and reset downwards; a pipeline 5 is connected between the box body 4 and the paint box 2; the lower end of the box body 4 is provided with a roller 6, and the outer edge surface of the roller 6 is provided with grooves 7 which are uniformly distributed on the circumference; when the flat plate 1 moves forwards, the roller 6 can contact with the ground and rotate, so that the paint flows out of the box body 4;

the flat plate 1 is provided with a marking device positioned at the rear side of the line drawing device, the marking device comprises a disc 8 arranged at the center of the flat plate 1, wheels of the flat plate vehicle can drive the disc 8 to intermittently rotate through rotation, and two semicircular bulges 9 are symmetrically arranged on the outer edge surface of the disc 8; two transverse push rods 10 which are symmetrically distributed left and right are arranged on the flat plate 1; the push rod 10 and the disc 8 form a cam mechanism; a transverse second supporting plate 11 is arranged on the front side of each push rod 10, the left and right positions of the second supporting plates 11 are adjustable, a vertical and transverse rotating disc 12 is connected to the outer end of each second supporting plate 11, the rotating disc 12 can rotate and reset, and an inclined brush 13 is connected to the rotating disc 12; the push rod 10 reciprocates left and right to push the rotary disc 12 to rotate back and forth, so that the brush 13 brushes the ground left and right.

In order to more accurately determine the distance between the wheel and the traffic lane, the flat plate 1 is provided with a fixed sleeve 14, a sliding staff 15 is inserted into the fixed sleeve 14, and the fixed sleeve 14 is in threaded connection with a bolt.

For the wheel rotation of flatbed can drive disc 8 intermittent type and rotate, be located the transmission shaft between the two wheels of rear side on the cover be equipped with first bevel gear 16, the lower terminal surface of dull and stereotyped 1 is installed the level and is installed the second bevel gear 17 with bevel gear meshing, install the gear that is located dull and stereotyped 1 downside on the installation axle of disc 8, install the incomplete gear 18 with gear meshing on the lower terminal surface of dull and stereotyped 1, the installation axle of second bevel gear 17 drives the installation axle rotation of incomplete gear 18 through belt pulley and belt.

In order to realize the matching between the push rod 10 and the disc 8, a sleeve 19 sleeved outside the push rod 10 is fixedly installed on the flat plate 1, and a pressure spring positioned between the sleeve 19 and the inner end of the push rod 10 is sleeved on the push rod 10; the inner end of the push rod 10 is provided with a rotating wheel which is contacted with the disc 8.

In order to realize the left-right reciprocating movement of the push rod 10 and push the rotating disc 12 to rotate in a reciprocating manner, the outer end of the first supporting plate 3 is fixed with a mounting shaft which is arranged in the front-back direction, the rotating disc 12 is rotatably sleeved on the mounting shaft, and a torsion spring 20 is arranged between the rotating shaft and the mounting shaft; the outer end of each push rod 10 is connected with a first deflector rod 21 which is arranged in the front-back direction, a second deflector rod 22 which is obliquely arranged is fixedly connected to the rotary table 12, and the first deflector rod 21 moves outwards and can enable the rotary table 12 to rotate through the second deflector rod 22; the first shift lever 21 moves inward and the turntable 12 is reset.

For better drawing lines, the lower end face of each box body 4 is provided with a brush 23, and the brush 23 is positioned at the rear side of the roller 6.

In order to achieve the adjustment of the left-right positions of the first support plate 3 and the second support plate 11; the first supporting plate 3 is provided with a strip-shaped through groove 24, and the flat plate 1 and the first supporting plate 3 are connected through bolts penetrating through the strip-shaped through groove 24; the second support plate 11 is attached in the same manner as the first support plate 3.

In order to better spray paint, a piston plate 25 capable of moving left and right is arranged in the paint box 2, a piston rod 26 is connected to the piston plate 25, and a spring capable of enabling the piston rod 26 to reset left is sleeved on the piston rod 26.

When the road surface calibration device is used, firstly, the road surface to be calibrated is determined, and the road surface is cleaned by the broom. Then, the number and the approximate position of the route needing to be calibrated can be planned, and the device is used for drawing lines and marking fixed length on the route.

Before the device is used, firstly, a ruler is used for measuring the left and right wheel pitches of the flatness detector, and the left and right positions of the left and right first supporting plates 3 in the device are adjusted by taking the wheel pitches as reference, so that the distance between the rollers 6 below the left and right box bodies 4 is equal to the left and right wheel pitches of the flatness detector. During adjustment, a ruler is used for measurement, and the left first supporting plate 3 and the right first supporting plate 3 are symmetrically arranged as far as possible; meanwhile, the second supporting plate 11 is correspondingly adjusted, the position of the second supporting plate 11 can correspond to the position of the first supporting plate 3 in a front-back mode, and it is sequentially guaranteed that the brush 13 can brush paint tracks formed by the roller 6 in the left-right direction.

After the steps are completed, namely when a line is drawn, the left and right distance formed by the paint can be equal to the left and right wheel track of the flatness detector, then the position of the sliding staff 15 needs to be adjusted, when the position of the sliding staff 15 is adjusted, the existing lane line on the road surface is taken as a reference, and the general detection position needs to be 80-100 cm away from the lane line

At the moment, a measuring staff 15 is used for measuring, and the middle line of the flat car is 80-100 cm away from the lane line, for example, 90cm is taken as a standard for setting; the middle part of the sliding staff 15 is fixed by the bolt on the fixing sleeve 14, and the right end of the sliding staff 15 is aligned with the edge of the lane line.

Then, the flat car can be pulled to walk, attention is paid at any time when the flat car is pulled, and the right end of the tower ruler 15 is kept aligned with the edge of the lane line; when the flat car is pulled to walk, because a spring which enables the box body 4 to move downwards is connected between the box body 4 and the first supporting plate 3, the roller 6 positioned below the box body 4 can always contact with the ground, and in the process that the box body 4 walks forwards along with the flat car 1, the roller 6 positioned below the box body 4 can also rub and roll with the ground; after the roller 6 rolls, the grooves 7 are uniformly distributed on the periphery of the outer edge surface of the roller 6, so that paint can be dripped on the ground due to the fact that the grooves 7 are rotated to the outside of the box body 4 from the inside of the box body 4 along with the rotation of the roller 6 and the paint can be dripped on the ground under the gravity and the friction force between the paint and the ground; thereby forming dense and intermittent paint dots; and because the brush 23 positioned at the rear side of the roller 6 is arranged below each box body 4, the brush 23 can brush the paint points into continuous paint lines. Thus, a neat paint line can be formed.

If a hand-push type profiler (a pavement longitudinal section profiler) is selected instead of a precise level gauge, the paint line can be directly drawn, manually pushed and directly detected. If the precision level is used, the precision level adopts fixed-point detection, and then a computer processes the longitudinal section line of the travel road surface in a post-processing mode, so that the precision level needs fixed-length fixed-point detection, and fixed-length marking needs to be carried out on the road surface.

The marking device at the rear side of the line drawing device in the device can complete the marking; the specific working process and principle are as follows, the axle of the rear wheel of the flat car can realize the intermittent rotation of the disc 8 through the first bevel gear 16, the second bevel gear 17, the belt and the belt pulley, and then through the incomplete gear 18 and the gear. Two symmetrical semicircular bulges 9 are arranged on the disc 8, so that the bulges on the disc 8 can gradually approach the inner end of the push rod 10 along with the rotation of the disc 8; after the protrusion on the disc 8 contacts the inner end of the push rod 10, the protrusion can press the push rod 10, so that the push rods 10 on the left and right sides move outwards at the same time, after the push rod 10 moves outwards, the first shift lever 21 located at the outer end of the push rod 10 moves outwards at this time, and then the second shift lever 22 located on the rotary disc 12 is pushed, so that the second shift lever 22 drives the rotary disc 12 to rotate, at this time, the rotary disc 12 on the left side can rotate anticlockwise, the rotary disc 12 on the right side can rotate clockwise, after the left and right rotary discs 12 rotate, the brush 13 which is originally in an inclined state can rotate under the driving of the rotary disc 12, so that the brush 13 contacts the ground, because the position of the brush 13 corresponds to the position of a paint line, the paint is not completely dried, when the paint line is brushed in the left and right directions by the brush 13, a left and. After the rotary disc 12 continues to rotate for a certain angle, the semicircular bulge 9 is not at the inner end of the extrusion push rod 10, and at the moment, the push rod 10 can reset inwards and extrude the outer edge surface of the disc 8 under the action of a pressure spring sleeved on the push rod 10. At this time, the first driving lever 21 is reset and does not extrude the second driving lever 22; the turntable 12 is also returned by the torsion spring 20, at which point the brush 13 again marks the paint line with a transverse mark. In practical use, one of the two labels should be uniformly used. Therefore, the whole device can automatically finish the action of transverse marking, and the fixed-length marking is realized. The distance is determined by the size of the wheels and the transmission ratio between the transmission parts; when the production setting is carried out, reasonable calculation is carried out, and the fixed length distance is 25-30 m.

After one left and right wheel trace is drawn, four or five left and right wheel traces can be drawn in the same way according to actual needs so as to meet the calibration requirement.

Because be equipped with piston plate 25 and piston rod 26 in the paint box 2, consequently the paint in box body 4 has certain pressure, makes the paint can be better along with the rotation of gyro wheel 6 and flows out, has avoided the depth of paint line to differ.

The device has simple integral structure and simple manufacture, can be used for transforming the existing flat car, and the required parts are all conventional parts without expensive or precise sensors and other instruments; therefore, the method has certain popularization value.

This device is through setting up setting-out device and marking device, and the intercommunicating between the two has utilized the characteristic of paint, through using gyro wheel 6 with paint drippage behind ground, has advanced brush 23, makes intensive paint point stroke thickness even paint line, then when the paint line is not dry, carries out horizontal mark with marking device again, has realized the mark of fixed length.

The two functions of the device do not need extra power or electric power as driving, and the traditional paint spraying method changes the traditional paint spraying method which needs large-scale components such as an air pump and the like, and changes complex precise instruments such as a sensor, an electronic circuit and the like which are inconvenient to manufacture and maintain. The method simply and reasonably solves the engineering requirement, can accurately and quickly draw the longitudinal road wheel trace line, and is convenient for the detection and sampling of the flatness detector.

The device has the advantages of ingenious structure, convenience in manufacturing, originating from requirements, contribution to engineering, capability of meeting the flatness detection in most of engineering, convenience in providing and capability of ensuring the accuracy of detection data.

Claims

1. A bridge deck flatness detection device comprises a flat car body consisting of a flat plate (1), wheels and a pull rod, and is characterized in that a paint box (2) is fixedly arranged on the flat plate (1); the paint box (2) is connected with a line drawing device; the line drawing device comprises two transverse first supporting plates (3) which are symmetrically arranged on a flat plate (1), and the left and right positions of the first supporting plates (3) are adjustable; the outer end of each first supporting plate (3) is provided with a box body (4) which can move up and down and reset downwards; a pipeline (5) is connected between the box body (4) and the paint box (2); the lower end of the box body (4) is provided with a roller (6), and the outer edge surface of the roller (6) is provided with grooves (7) which are uniformly distributed on the circumference; when the flat plate (1) moves forwards, the roller (6) can contact with the ground and rotate, so that the paint flows out of the box body (4);

the flat plate (1) is provided with a marking device positioned at the rear side of the line drawing device, the marking device comprises a disc (8) arranged at the center of the flat plate (1), wheels of the flat car can drive the disc (8) to rotate intermittently, and the outer edge surface of the disc (8) is symmetrically provided with two semicircular bulges (9); two transverse push rods (10) which are symmetrically distributed at left and right are arranged on the flat plate (1); the push rod (10) and the disc (8) form a cam mechanism; a transverse second supporting plate (11) is arranged on the front side of each push rod (10), the left and right positions of the second supporting plates (11) are adjustable, a vertical and transverse rotating disc (12) is connected to the outer end of each second supporting plate (11), the rotating disc (12) can rotate and reset, and an inclined brush (13) is connected to the rotating disc (12); the push rod (10) moves left and right in a reciprocating way and can push the rotating disc (12) to rotate in a reciprocating way, so that the brush (13) brushes the ground in the left and right directions.

2. The bridge floor flatness detecting device according to claim 1, wherein a fixing sleeve (14) is arranged on the flat plate (1), a tower ruler (15) is inserted into the fixing sleeve (14), and a bolt is connected to the fixing sleeve (14) in a threaded manner.

3. The bridge floor flatness detection device according to claim 1, characterized in that a first bevel gear (16) is sleeved on a transmission shaft between the two wheels at the rear side, a second bevel gear (17) which is horizontal and meshed with the bevel gears is installed on the lower end surface of the flat plate (1), a gear located on the lower side of the flat plate (1) is installed on an installation shaft of the disc (8), an incomplete gear (18) meshed with the gear is installed on the lower end surface of the flat plate (1), and the installation shaft of the second bevel gear (17) drives the installation shaft of the incomplete gear (18) to rotate through a belt pulley and a belt.

4. The bridge deck flatness detection device according to claim 1, wherein a sleeve (19) sleeved outside the push rod (10) is fixedly installed on the flat plate (1), and a pressure spring positioned between the sleeve (19) and the inner end of the push rod (10) is sleeved on the push rod (10); the inner end of the push rod (10) is provided with a rotating wheel which is contacted with the disc (8).

5. The bridge deck flatness detecting device according to claim 1, wherein an installation shaft is fixed at the outer end of the first supporting plate (3) and placed in the front-back direction, the rotating disc (12) is rotatably sleeved on the installation shaft, and a torsion spring (20) is arranged between the rotating shaft and the installation shaft; the outer end of each push rod (10) is connected with a first deflector rod (21) which is arranged in the front-back direction, a second deflector rod (22) which is obliquely arranged is fixedly connected to the rotary table (12), and the first deflector rod (21) moves outwards and can pass through the second deflector rod (22) to enable the rotary table (12) to rotate; the first shift lever (21) moves inward, and the turntable (12) is reset.

6. The bridge floor flatness detecting device according to claim 1, wherein a brush (23) is installed on the lower end surface of each box body (4), and the brush (23) is located at the rear side of the roller (6).

7. The bridge deck flatness detection device according to claim 1, wherein the first support plate (3) is provided with a strip-shaped through groove (24), and the flat plate (1) and the first support plate (3) are connected through a bolt penetrating through the strip-shaped through groove (24); the second support plate (11) is connected in the same manner as the first support plate (3).

8. The bridge floor flatness detection device according to claim 1, characterized in that a piston plate (25) capable of moving left and right is arranged in the paint box (2), a piston rod (26) is connected to the piston plate (25), and a spring (27) capable of enabling the piston rod (26) to reset left is sleeved on the piston rod (26).