CN115125796A

CN115125796A - Laser ultrasonic paver and construction process thereof

Info

Publication number: CN115125796A
Application number: CN202210849187.7A
Authority: CN
Inventors: 杨鹏; 张传儒; 闫祥龙; 张立忠; 李沼汉; 纪旭超; 赵明; 高晓东
Original assignee: CCCC First Highway Engineering Co Ltd
Current assignee: CCCC First Highway Engineering Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-09-30

Abstract

The invention discloses a laser ultrasonic paver and a construction process thereof, comprising a traveling car and a traveling wheel installed at the bottom of the traveling wheel, the traveling wheel is rollingly connected on a track, and the top of the traveling car is connected with a lifting seat through a lifting assembly. In the present invention, the length of the above-mentioned components is matched with the width of the road surface by adding the corresponding extension truss, the spiral distribution shaft, the rolling roller and the scraper. The height of the seat and its accessory parts, the traveling car moves forward along the track, the spiral distribution shaft distributes the material from the middle to the two sides, the rolling roller rolls the material body, and the vibrating rod vibrates the material body to improve the compactness of the material body. , and the height of the lower telescopic plate and the vibrating rod on it can be adjusted through the third cylinder to change the vibration depth of the vibrating rod, and finally the material body is smoothed by the scraper, and the paving, vibrating and smoothing are completed at one time. process.

Description

Laser ultrasonic paver and construction process thereof

Technical Field

The invention relates to the technical field of road construction, in particular to a laser ultrasonic paver and a construction process thereof.

Background

The rapid development of the manufacturing technology of engineering mechanical equipment and the progress of boosting construction technology, particularly in the paving and leveling directions of highway bridge decks, the unique advantages of the laser ultrasonic paver in the aspects of whole-width rapid paving and leveling are more and more widely applied to engineering practice.

The bridge deck pavement is the part that links up bituminous concrete pavement layer and precast beam face, and the primary action is to coming from the operating force on the bituminous concrete and dispersing the transmission, guarantees upper bituminous concrete quality of paving simultaneously, is the concrete leveling layer of paving on precast beam face, and the concentrated load of dispersion vehicle wheel weight, current paving equipment adjustability is relatively poor, and application scope is less, and is great to artificial demand.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a laser ultrasonic paver and a construction process thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a laser ultrasonic paver comprises a walking vehicle and walking wheels arranged at the bottom of the walking vehicle, the walking wheels are connected on a track in a rolling way, the top of the walking vehicle is connected with a lifting seat through a lifting component, the lifting seat is hinged with a rotating seat with an adjustable inclination angle, one side of the rotating seat away from the lifting seat is connected with a fixed truss, the fixed truss is detachably connected with an extension truss, a spiral distributing shaft, a material grinding roller, an upper expansion plate and a lower expansion plate are respectively arranged below the extension truss, the lengths of the spiral distributing shaft and the material grinding roller can be increased or decreased, and the epaxial helical blade symmetry of spiral cloth sets up, and spiral cloth axle and grind the material roller all with rotate the seat and rotate and be connected and by the drive assembly drive, go up the expansion plate and rotate the seat, go up the expansion plate and with lower expansion plate interval adjustable, lower expansion plate bottom is connected with a plurality of vibrting spears, the lateral wall that rotates the seat articulates there is the adjustable length scraper blade.

Preferably, the rotating seat is hinged with the lifting seat through a hinge seat, the top of the rotating seat is hinged with a second cylinder, and the output end of the second cylinder is hinged with the lifting seat.

Preferably, the lifting assembly comprises first air cylinders connected to four corners of the top of the walking vehicle, and the output end of each first air cylinder is connected with the lifting seat.

Preferably, the ends of two adjacent sections of the spiral material distributing shaft and the material grinding roller are provided with inner holes, connecting shafts are arranged in the inner holes, the outer rings of the connecting shafts are connected with convex edges, and the inner rings of the inner holes are provided with limit grooves corresponding to the convex edges.

Preferably, the upper expansion plate is provided with a third cylinder, the output end of the third cylinder is connected with the lower expansion plate, the vibrating rods are provided with multiple rows along the length direction of the lower expansion plate, and the two adjacent rows of vibrating rods are arranged in a crossed manner.

Preferably, the upper expansion plate and the lower expansion plate comprise plate bodies, one of the plate bodies is connected with a connecting plate, the connecting plate is inserted into the other plate body, and the side wall of the plate body is in threaded connection with a fastening bolt.

Preferably, the scraper blade comprises the multistage long board, and the avris of long board is connected with the engaging lug, and the engaging lug passes through connecting bolt to be connected, and the upper end of scraper blade is passed through the articulated shaft and is rotated the seat and rotate and be connected, and has cup jointed the torsional spring on the articulated shaft, and the both ends of torsional spring are connected with the articulated shaft and rotate the seat respectively.

Preferably, the ends of the fixed truss and the lengthened truss are connected with connecting plates, and the connecting plates are connected through bolts.

Preferably, the fixed truss is provided with a lighting device, and the rotating seat is provided with a laser radar range finder.

A construction process of a laser ultrasonic paver comprises the following steps:

the method comprises the following steps: bridge floor cleaning: before bridge deck construction, a chiseling machine is used for chiseling floating slurry on the top surface of a T-shaped beam, particularly uneven loose concrete at the junction of a wet joint and the beam surface of the T-shaped beam needs to be chiseled and removed, the chiseling depth cannot be too deep, the structural layer of the T-shaped beam is prevented from being damaged, sundries are swept and cleaned by a blower after chiseling, and the beam surface is cleaned;

step two: installing reinforcing steel bars, meshes and a water drain pipe;

step three: measuring and lofting: a measurer carries out track positioning and track elevation measurement on the top of the anti-collision wall, 1 installing point is placed at every 8m of a straight line segment and 1 pile point is placed at every 6m of a curve segment during measurement, so that the elevation of a pouring top surface is accurately controlled during concrete pouring, and each pile point is marked and numbered;

step four: installing a paver, and adjusting the paver according to the paving width, thickness and gradient;

step five: pouring concrete;

step six: curing the concrete;

step seven: cutting a seam: after bridge deck pavement concrete pouring is finished, a false seam is cut in time, 1 transverse contraction seam is arranged at the interval of 10m along the bridge deck along the line direction, the contraction seam is a saw cutting false seam, the width of the seam is 5mm, the depth of the seam is 3cm, and asphalt mastic is filled in the seam.

Compared with the prior art, the invention has the beneficial effects that: the invention makes the length of the components match with the width of the road surface by additionally arranging the corresponding lengthening truss, the spiral material distributing shaft, the material grinding roller and the scraper, utilizes the laser radar range finder to measure the height, the height of the lifting seat and the auxiliary components on the lifting seat is adjusted through the first air cylinder, the traveling vehicle moves forwards along the track, the spiral material distributing shaft distributes materials from the middle to two sides, the material grinding roller grinds the material body, the vibrating spear vibrates the material body, the compactness of the material body is improved, and the height of the lower expansion plate and the vibrating spear on the lower expansion plate can be adjusted through the third cylinder to change the vibration depth of the vibrating spear, and finally the material body is screeded by the scraper plate to finish the procedures of paving, vibrating and screeding at one time, and the included angle between the rotating seat and the lifting seat is changed through the second air cylinder, so that the spiral material distributing shaft and the material grinding roller are inclined to spread on the slope, and the device has high applicability.

Drawings

In order to more particularly and intuitively illustrate an embodiment of the present invention or a prior art solution, a brief description of the drawings needed for use in the description of the embodiment or the prior art will be provided below.

FIG. 1 is a first schematic structural diagram according to the present invention;

FIG. 2 is a second schematic structural diagram according to the present invention;

FIG. 3 is a third schematic structural diagram according to the present invention;

FIG. 4 is a schematic view of a connection structure of a spiral distributing shaft and a material grinding roller;

fig. 5 is a schematic view of an adjusting structure of the upper and lower retractable plates.

In the figure: the device comprises a walking vehicle 1, walking wheels 2, a first cylinder 3, a lifting seat 4, a second cylinder 5, a rotating seat 6, a fixed truss 7, an extension truss 8, a spiral material distribution shaft 9, a material grinding roller 10, a hinged seat 11, a connecting plate 12, a vibrating rod 13, an upper expansion plate 14, a lower expansion plate 15, a third cylinder 16, a scraping plate 17, a connecting lug 18, a connecting shaft 19, a convex rib 20, a plate body 21, a connecting plate 22 and a fastening bolt 23.

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.

Referring to fig. 1-5, a laser ultrasonic paver comprises a walking vehicle 1 and a walking wheel 2 installed at the bottom of the walking vehicle, wherein the walking wheel 2 is connected on a track in a rolling manner, the top of the walking vehicle 1 is connected with a lifting seat 4 through a lifting assembly, the lifting seat 4 is hinged with a rotating seat 6 with an adjustable inclination angle, one side of the rotating seat 6 away from the lifting seat 4 is connected with a fixed truss 7, the fixed truss 7 is detachably connected with an extension truss 8, a spiral distributing shaft 9, a material grinding roller 10, an upper expansion plate 14 and a lower expansion plate 15 are respectively arranged below the extension truss 8, the lengths of the spiral distributing shaft 9 and the material grinding roller 10 can be increased and decreased, spiral blades on the spiral distributing shaft 9 are symmetrically arranged, the spiral distributing shaft 9 and the material grinding roller 10 are both rotatably connected with the rotating seat 6 and driven by a driving assembly, the upper expansion plate 14 and the rotating seat 6, the upper expansion plate 14 and the lower expansion plate 15 have adjustable intervals, the bottom of the lower expansion plate 15 is connected with a plurality of vibrating rods 13, the side wall of the rotating seat 6 is hinged with a scraping plate 17 with adjustable length, the fixed truss 7 is provided with a lighting device, and the rotating seat 6 is provided with a laser radar distance meter.

According to the width of the road surface, a corresponding lengthening truss 8, a spiral material distributing shaft 9, a material grinding roller 10 and a scraping plate 17 are additionally arranged, the length of the components is matched with the width of the road surface, the height is measured by a laser radar distance meter, the height of a lifting seat 4 and the auxiliary components thereon is adjusted by a first air cylinder 3, a walking vehicle 1 moves forwards along the track, the spiral material distributing shaft 9 distributes materials from the middle to two sides, the material grinding roller 10 grinds the material body, a vibrating rod 13 vibrates the material body, the compactness of the material body is improved, the height of a lower expansion plate 15 and the vibrating rod 13 thereon can be adjusted by a third air cylinder 16, the vibration depth of the vibrating rod 13 is changed, the material body is leveled by the scraping plate 17, the processes of paving, vibrating and leveling are completed at one step, the included angle between a rotating seat 6 and the lifting seat 4 is changed by a second air cylinder 5, so that the spiral material distributing shaft 9 and the material grinding roller 10 incline, the paving is carried out on a slope, and the applicability is high.

In this embodiment, rotate seat 6 and lift 4 articulated through articulated seat 11, the top of rotating seat 6 articulates there is second cylinder 5, and the output of second cylinder 5 is articulated with lift 4 for adjust the contained angle of rotating seat 6 and lift 4, realize paving on slope.

In this embodiment, lifting unit is including connecting the first cylinder 3 in the 1 top four corners of walking car, and the output and the lift seat 4 of first cylinder 3 are connected for adjust the height of lift seat 4, change the thickness that paves.

In this embodiment, the ends of two adjacent sections of the spiral material distributing shaft 9 and the material grinding roller 10 are both provided with inner holes, the inner holes are internally provided with connecting shafts 19, the outer rings of the connecting shafts 19 are connected with convex edges 20, the inner rings of the inner holes are provided with limiting grooves corresponding to the convex edges 20, and torque transmission is realized through the connecting shafts 19 and the convex edges 20.

In this embodiment, install third cylinder 16 on the last expansion plate 14, the output of third cylinder 16 is connected with lower expansion plate 15, and vibrting spear 13 is provided with the multirow along lower expansion plate 15 length direction, and two rows of adjacent vibrting spears 13 cross arrangement, improves the efficiency of vibrating.

In this embodiment, go up expansion plate 14 and lower expansion plate 15 and all include plate body 21, and be connected with connecting plate 22 on one of them plate body 21, connecting plate 22 pegs graft in another plate body 21, the lateral wall threaded connection of this plate body 21 has fastening bolt 23, be used for realizing the regulation of expansion plate 14 and lower expansion plate 15 length, scraper blade 17 comprises the multistage long slab, and the avris of long slab is connected with engaging lug 18, engaging lug 18 passes through connecting bolt and connects, the articulated shaft is passed through with the rotation seat 6 and is rotated to the upper end of scraper blade 17 and be connected, and cup jointed the torsional spring on the articulated shaft, and the both ends of torsional spring are connected with articulated shaft and rotation seat 6 respectively, the resilience force that utilizes the torsional spring provides scraper blade 17 to the pressure on ground, improve the floating dynamics of the material body.

In this embodiment, the ends of the fixed truss 7 and the lengthened truss 8 are connected with the connecting plates 12, and the connecting plates 12 are connected through bolts, so that the trusses are lengthened through the connection of the fixed truss 7 and the lengthened truss 8.

the method comprises the following steps: bridge deck cleaning: before bridge deck construction, chiseling floating slurry on the top surface of a T-shaped beam by using a chiseling machine, particularly chiseling and removing uneven loose concrete at the junction of a wet joint and the beam surface of the T-shaped beam, wherein the chiseling depth cannot be too deep, so that the structural layer of the T-shaped beam is prevented from being damaged, blowing sundries clean by using a blower after chiseling, and cleaning the beam surface;

step two: installation of steel bar, net piece and water drain pipe

Before the reinforcing bar net piece was mated formation, will reserve the anchor muscle on T roof beam surface and prize, lay 2.3m 6m net pieces, every square meter cushion is no less than 4, guarantees the protective layer thickness of reinforcing bar net piece to notice that overlap joint length is 20cm at least, say after the net piece is laid and accomplish that perpendicular anchor muscle is once buckling on the T roof beam, avoid pouring in-process reinforcing bar and shift, the joint adopts the steel wire ligature firm. After the net sheets are installed, the transverse bridge inspects the thickness of the protective layer of the reinforcing steel bar net sheets along the lofting height hanging line of the anti-collision walls on the two sides, and the rib leakage site is prevented. For the low slope side of the bridge floor hogging moment area with continuous structure, 1 cast iron water drain pipe is arranged at the bottom of the anti-collision wall, the installation height of the cast iron pipes is strictly controlled during installation, and the top surfaces of the cast iron pipes and the concrete paved on the side where the cast iron pipes are located are slightly lower than about 1cm, so that later-period rainwater drainage is facilitated. Carrying out secondary beam surface blowing after the mesh is laid, and ensuring that the beam surface is kept clean and moist before laying and pouring;

step five: pouring of concrete

The concrete pouring of the bridge deck generally adopts a top pump, the workability and the slump are strictly controlled, the concrete is guaranteed to be paved by controlling the movement of a large arm of the top pump, the concrete is guaranteed to be paved evenly, the height of paving cloth is controlled to be slightly higher than that of a roller shaft by 1-2 cm, a shovel and a rake are manually adopted to be matched at the front edge of the roller shaft for paving and leveling, an inserting vibrator is used for large-surface vibrating compaction before mechanical paving, the concrete which is paved highly is fallen back and compacted, then the paver is started to run, then the paver is used for vibrating and leveling, the length of each paved surface is controlled to be about 5m, vibrating, paving and rolling are repeatedly carried out for 3-5 times before and after each paved surface until the paved surface is compacted and leveled, the edge band outside the track of the paver and the anti-collision wall are matched with the inserting vibrator for vibrating until the concrete is not sunk, no air bubbles appear, the surface presents the laitance, the juncture of the bottom of the anti-collision wall and the paving top surface is manually trowelled. Concrete pouring is completed for about 2-3 h, before the concrete strength is initially formed, a matched driving polishing machine is used for plastering, the time is mastered in a certain period during the surface grinding, and the plastering effect can be directly influenced too early or too late, generally 1 spreading machine is provided with 2 driving polishing machines, and the polishing machines rub repeatedly for 3-5 times until the pavement surface layer reaches a certain flatness and compactness. Installing a plug template at the construction joint according to the hanging line of the thickness of the pavement layer, and simultaneously performing chiseling treatment to clean floating slurry;

step six: concrete curing

After concrete is paved, the concrete is easy to generate shrinkage cracks, and particularly, the concrete is constructed in the weather with higher temperature, so that the maintenance work after the paving is very important, the concrete is covered by geotechnical cloth in summer, and a watering cart is used for regularly watering and maintaining the concrete, so that the moisture is prevented from being evaporated in large quantity, the shrinkage cracks are prevented, and the practical service life of a road is shortened;

step seven: cutting a seam: after bridge deck pavement concrete pouring is finished, false seams should be cut in time, otherwise, under the action of temperature stress, transverse irregular cracks can be generated very quickly, the service life of the bridge deck is influenced, the bridge deck is provided with 1 transverse contraction joint (1 contraction joint is arranged at each pier top) at intervals of 10m along the line direction, the contraction joints are saw cutting false seams, the seam width is 5mm, the seam depth is 3cm, and asphalt mastic is filled in the seams.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A laser ultrasonic paver, comprising a traveling vehicle (1) and a traveling wheel (2) installed at its bottom, and the traveling wheel (2) is rollingly connected on a track, it is characterized in that the traveling vehicle (1) A lift seat (4) is connected with the lift seat (4) on the top of the lift seat (4), a rotating seat (6) with an adjustable inclination angle is hinged on the lift seat (4), and a fixed truss is connected to the side of the rotating seat (6) away from the lift seat (4). (7), the fixed truss (7) is detachably connected with an extension truss (8), and a screw distribution shaft (9), a rolling roller (10), and an upper telescopic plate (14) are respectively provided below the extension truss (8). and the lower telescopic plate (15), the lengths of the auger shaft (9) and the grinding roller (10) can be increased or decreased, and the helical blades on the auger shaft (9) are symmetrically arranged, and the auger shaft (9) and the roller The feed rollers (10) are all rotatably connected to the rotating base (6) and driven by the drive assembly. The distance between the upper telescopic plate (14) and the rotating base (6), the upper telescopic plate (14) and the lower telescopic plate (15) is adjustable, A plurality of vibrating rods (13) are connected to the bottom of the lower telescopic plate (15), and a scraper (17) with adjustable length is hinged on the side wall of the rotating seat (6).

2. A laser ultrasonic paver according to claim 1, wherein the rotating seat (6) is hinged with the lifting seat (4) through the hinge seat (11), and the top of the rotating seat (6) is hinged There is a second air cylinder (5), the output end of the second air cylinder (5) is hinged with the lifting seat (4).

3. A laser ultrasonic paver according to claim 2, characterized in that the lifting assembly comprises a first cylinder (3) connected to the four corners of the top of the carriage (1), and the first cylinder (3) The output end is connected with the lifting seat (4).

4. A laser ultrasonic paver according to claim 3, characterized in that the ends of the two adjacent sections of the spiral distribution shaft (9) and the grinding roller (10) are provided with inner holes, The inner hole is provided with a connecting shaft (19), the outer ring of the connecting shaft (19) is connected with a convex edge (20), and the inner ring of the inner hole is provided with a limit groove corresponding to the convex edge (20).

5 . The laser ultrasonic paver according to claim 4 , wherein a third cylinder ( 16 ) is installed on the upper telescopic plate ( 14 ), and the output end of the third cylinder ( 16 ) is connected to the lower The telescopic plates (15) are connected, the vibrating bars (13) are arranged in multiple rows along the length direction of the lower telescopic plate (15), and two adjacent rows of vibrating bars (13) are arranged in a cross.

6 . The laser ultrasonic paver according to claim 5 , wherein the upper telescopic plate ( 14 ) and the lower telescopic plate ( 15 ) both comprise a plate body ( 21 ), and one of the plate bodies ( 21) is connected with a connecting plate (22), the connecting plate (22) is inserted into another plate body (21), and the side wall of the plate body (21) is screwed with fastening bolts (23).

7 . The laser ultrasonic paver according to claim 6 , wherein the scraper ( 17 ) is composed of a plurality of long boards, and the sides of the long boards are connected with connecting ears ( 18 ), and the connecting ears (18) Connected by connecting bolts, the upper end of the scraper (17) is rotatably connected with the rotating seat (6) through the hinge shaft, and a torsion spring is sleeved on the hinge shaft, and the two ends of the torsion spring are respectively connected with the hinge shaft and the rotating seat. (6) Connection.

8 . The laser ultrasonic paver according to claim 7 , wherein the ends of the fixed truss ( 7 ) and the extension truss ( 8 ) are connected with connecting plates ( 12 ), and the connecting plates (12) Connected by bolts.

9 . The laser ultrasonic paver according to claim 8 , wherein a lighting device is installed on the fixed truss ( 7 ), and a laser radar range finder is installed on the rotating seat ( 6 ). 10 .

10. The construction technique of the laser ultrasonic paver according to any one of claims 1-9, wherein the technique comprises the steps:

Step 1: Bridge deck cleaning: Before the construction of the bridge deck, use a chisel machine to chisel the top surface of the T beam, especially the uneven loose concrete at the junction of the wet joint and the T beam surface. The depth should not be too deep to avoid damaging the structural layer of the T beam. After chiseling, use a hair dryer to blow off the sundries and clean the beam surface;

Step 2: Installation of steel bars, mesh sheets and drain pipes;

Step 3: Measure and stake out: The surveyor conducts track positioning and track elevation measurement on the top of the anti-collision wall. During the measurement, a decoration point is placed every 8m in the straight section, and a pile point is placed every 6m in the curved section, so as to facilitate accurate control during concrete pouring Pour the top surface elevation, each pile point is identified and numbered;

Step 4: Install the paver, and adjust the paver according to the width, thickness and slope of the paving;

Step 5: Concrete pouring;

Step 6: Concrete curing;

Step 7: Cut the seam: After the bridge deck concrete is poured and leveled, the fake seam should be cut in time. The bridge deck should be set with 1 horizontal shrinkage joint at every 10m interval along the line direction. The depth of the seam is 3cm, and the seam is filled with asphalt mastic.