CN115450090B - Digital autonomous double-layer paving device and paving method - Google Patents
Digital autonomous double-layer paving device and paving method Download PDFInfo
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- CN115450090B CN115450090B CN202211289222.0A CN202211289222A CN115450090B CN 115450090 B CN115450090 B CN 115450090B CN 202211289222 A CN202211289222 A CN 202211289222A CN 115450090 B CN115450090 B CN 115450090B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4833—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
- E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
- E01C19/486—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements with non-vibratory or non-percussive pressing or smoothing means; with supplemental elements penetrating the paving to work the material thereof
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- Road Paving Machines (AREA)
Abstract
The application discloses a digital autonomous double-layer paving device and a paving method, wherein the device comprises the following components: the distribution hopper is internally provided with a conveyor belt which extends to the inside of the first rear paver and is used for receiving and conveying different paving materials; the first paver and the second paver are sequentially arranged behind the distributing hopper and are used for receiving paving materials and respectively performing first paving and second paving; the first ironing device is positioned between the first paver and the second paver and is used for carrying out ironing operation on the paving material after the first paving; the second ironing device is positioned behind the second paver and is used for ironing the paving material paved for the second time. According to the technical scheme, the manual operation difficulty can be reduced, and the service life of the asphalt concrete pavement can be prolonged.
Description
Technical Field
The application relates to an asphalt pavement paving device, in particular to a digital autonomous double-layer paving device and a paving method for asphalt bridge deck pavement construction.
Background
The highway tunnel construction is taken as an important component of the basic construction of China and becomes an inexhaustible power for promoting the economic development of China. With rapid development of highway construction, asphalt pavement is now becoming a major pavement structure. Asphalt concrete paving technology directly influences the operation life of the highway, asphalt pavement double-layer paving technology is used as an innovation of layered rolling technology, namely one-time paving of an adhesive layer and a wearing layer is completed by using the same machine, and the double-layer paving simultaneity of asphalt mixture is realized. The technology greatly improves the defects of the layered paving and layered rolling technology.
The key point of reasonably using the double-layer paving technology is the application of double-layer paver equipment. At present, the double-layer paver is not widely applied, mainly adopts manual control, and has the defects of high equipment control difficulty and complex operation.
There is a need to provide a highly efficient, accurate, digital autonomous bi-layer paver.
Disclosure of Invention
The technical scheme of the application provides a digital autonomous double-layer paving device and a paving method for asphalt bridge deck pavement construction, which can reduce the manual operation difficulty and prolong the service life of an asphalt concrete pavement.
According to a first aspect of the present application, there is provided a digital autonomous double-layer paving device, comprising:
the distribution hopper is internally provided with a conveyor belt which extends to the inside of the first rear paver and is used for receiving and conveying different paving materials;
the first paver and the second paver are sequentially arranged behind the distributing hopper and are used for receiving paving materials and respectively performing first paving and second paving;
the first ironing device is positioned between the first paver and the second paver and is used for carrying out ironing operation on the paving material after the first paving;
the second ironing device is positioned behind the second paver and is used for ironing the paving material paved for the second time.
Further, a conveyor belt, a distributing plate and a spiral feeder which are sequentially communicated are arranged in the first paver, and a first driving device is arranged at the lower part of the first paver.
Further, a hydraulic telescopic device is arranged at the lower part of the distributing plate, and a telescopic controller communicated with the central control system is arranged on the hydraulic telescopic device.
Further, a spiral feeder is arranged in the second paver, and a second driving device is arranged at the lower part of the second paver.
Further, after the hydraulic telescopic device is contracted, the distributing plate and the horizontal plane form a plane, so that paving materials are directly distributed to the first paver and conveyed to two sides of the first paver for leveling and paving through the screw conveyor; when the hydraulic telescopic device stretches, the distributing plate forms a certain included angle with the horizontal plane, so that paving materials are thrown and distributed to the second paver and conveyed to two sides of the second paver for leveling and paving through the spiral conveyor.
Further, the included angle between the material dividing plate and the horizontal plane is 40-45 degrees.
Further, after the hydraulic telescopic device is extended, the maximum displacement of the paving material which is thrown and delivered to the second paver is determined by controlling the included angle between the distributing plate and the horizontal plane and the transmission speed of the conveyor belt according to the following formula:
wherein s is the maximum displacement, g is the gravitational acceleration, v 0 Is the transmission speed of the conveyor belt; θ is the included angle between the material dividing plate and the horizontal plane; l is the length of the distributing plate.
The maximum displacement of paving materials from the material distribution to the second paver can be regulated and controlled by simply controlling the transmission speed of the conveyor belt and the included angle between the material distribution plate and the horizontal plane, so that the first paver and the second paver can be fed for multiple times through one material distribution hopper.
Meanwhile, the reason that the angle range of the material dividing plate and the horizontal plane is 40-45 degrees is that when the angle of the material dividing plate and the horizontal plane is smaller than 40 degrees or larger than 45 degrees, the material dividing effect is influenced due to the influence of paving materials, site temperature and humidity and other aspects.
Further, the front and back of the bottoms of the first paver and the second paver are respectively provided with a laser monitoring device.
Further, a driving control room is arranged at the upper part of the first paver.
Further, a central control system and a monitor are arranged in the driving control chamber, and the central control system comprises: GPS positioning system, laser processing system, environment monitoring system.
Further, the environmental monitoring system includes a temperature monitoring system and a temperature monitoring system.
Further, the rear wall of the distributing hopper is provided with a sensor comprising a temperature sensor and a humidity sensor.
Further, the first screed is a first heatable screed that is connected between the first paver and the second paver.
Further, the second ironing device includes: and the second moving device is connected with the detachable connecting rod of the second paver, the second heatable screed plate and the lower part.
According to a second aspect of the technical solution of the present application, there is provided a digital autonomous double-layer paving method, comprising:
step 1: the distributing hopper receives the first paving material, and the first paving material is directly distributed after being conveyed into the first paver through the conveyor belt;
step 2: the first paving machine paves the first paving material to form a first paving layer, and the first ironing device performs ironing operation on the first paving layer;
step 3: the distributing hopper receives the second paving material, and the second paving material is thrown and distributed to the second paver after being conveyed into the first paver through the conveyor belt;
step 4: the second paver paves the second paving material on the first paving layer to form a second paving layer, and the second ironing device performs ironing operation on the second paving layer.
Further, the step 1 specifically includes: the distributing hopper receives the first paving material, and is conveyed to the inside of the first paver through the conveying belt, so that the distributing plate and the horizontal plane form a plane, and the first paving material is directly distributed to the first paver.
Further, the step 3 specifically includes: the distributing hopper receives the second paving material, and is conveyed to the inside of the first paver through the conveying belt, so that a certain included angle is formed between the distributing plate and the horizontal plane, and the second paving material is thrown and distributed to the second paver.
The application has the beneficial effects that:
due to the adoption of the technical scheme, compared with the prior art, the application has the following advantages:
(1) The application has high degree of automation, is more prone to digitization, intellectualization and autonomy, realizes manual control, has the intellectualization of autonomous operation of equipment, saves manpower and improves precision
Degree, construction efficiency, quality and the like;
(2) And one distributing hopper is used for feeding for multiple times, so that the field required by paving is reduced, and the construction difficulty is reduced.
Provides a new idea for a paving site with limited construction sites.
(3) Through the simple control to conveyer belt transmission speed and divide flitch and horizontal angle, can realize the regulation and control to the biggest displacement of spreading material of dividing material to second paver to realize just can realizing respectively to the multiple feed of first paver and second paver through a dividing hopper, on the one hand, reduced the place that the needs of paving, reduced the construction degree of difficulty, on the other hand, owing to avoided setting up a plurality of hoppers, make paving process structure and flow compacter, under "hot connect heat" paving condition, further improved the roughness and the bonding strength that pave, reduced the possibility of interlaminar pollution, the problem that the compactness that asphalt leads to because of the temperature loss has been solved simultaneously, double-deck shortened construction cycle has good engineering suitability.
(4) The application has smart structure, realizes double-layer paving, greatly improves the paving evenness and bonding strength, reduces the possibility of interlayer pollution, and solves the problem of low compactness of asphalt caused by temperature loss;
(5) The application provides a high-efficiency and accurate digital autonomous double-layer paver, which is used for reducing the manual operation difficulty and prolonging the service life of an asphalt concrete pavement.
Drawings
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a schematic diagram of a central control system of the present application;
FIG. 3 is a detailed view of the interior of the first paving machine of the present application;
FIG. 4 is a schematic view of the relevant structure of the distributing plate of the present application;
figure 5 is a schematic view of the structure of a second ironing apparatus according to the present application; wherein:
1-distributing hopper, 2-first paver, 3-driving control room, 4-driving device, 5-first ironing device, 6-driving device, 7-second paver, 8-second ironing device, 9-laser monitoring device, 101-conveyer belt, 201-screw feeder, 202-distributing plate, 203-hydraulic telescopic link, 204-telescopic controller, 301-GPS positioning system, 302-laser processing system, 303-temperature monitoring system, 304-temperature monitoring system, 305-environment monitoring system, 306-central control system, 307-monitor, 801-screed, 802-connecting rod, 803-mobile device.
Detailed description of the preferred embodiments
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
Referring to fig. 1, the digital autonomous double-layer paving device according to the technical scheme of the application comprises a first paver 2, a first driving device 4 is arranged at the lower part of the first paver, a distributing hopper 1 and a first ironing device 5 are respectively connected with the front and the back of the first paver 2, a driving control room 3 is arranged at the upper part of the first paver, a second paver 7 is connected with the rear part of the first ironing device, a second driving device 6 is arranged at the lower part of the second paver 7, a second ironing device 8 is connected with the tail part of the second paver through a detachable connecting rod, and a laser monitoring device 9 is arranged at the bottom of the paver.
As shown in fig. 2, the control room 3 is provided with a central control system for realizing the digital autonomous paving of the paver, and the central control system comprises:
the GPS positioning system 301 sets related parameters such as a paving path, paving speed and the like according to construction requirements before paving, and determines a moving path of the paver during working by positioning the paver, so that errors caused by manual operation are reduced;
the laser processing system 302 is used for timely processing after receiving the signal transmitted by the laser monitoring device, monitoring the paving evenness in real time and timely responding to the processing after the evenness does not reach the standard;
the environment monitoring system 305 comprises a temperature monitoring system 303 and a temperature monitoring system 304, data are received by a temperature sensor and a humidity sensor, and the environment is monitored in real time, so that a reasonable paving environment is ensured;
the above monitoring system is connected to the central control system 306, and is transmitted to the monitor 307 through unified processing of the central control system, so that the operator can conveniently monitor in real time.
The distributing hopper 1 is internally provided with a conveyor belt which extends to the inside of the first paver 2 at the rear and is used for receiving and conveying different kinds of paving materials.
As shown in fig. 3, the first spreader 2 is internally provided with a conveyor belt 101, a screw feeder 201, and a distributing plate 202, which are sequentially communicated. The conveyor 201 is used for conveying the mixture transported from the hopper and transmitting to the next operation flow; the screw conveyer 202 conveys the mixture conveyed by the conveyor belt to two sides by the screw conveyer, so that the mixture is ensured to be flatly paved, and preparation is made for the next ironing.
The second paver 7 is also internally provided with a spiral conveyer, and the mixture conveyed by the scraper conveyer is conveyed to two sides by the spiral conveyer, so that the smooth paving of the mixture is ensured, and preparation is made for the next ironing.
As shown in fig. 4, a hydraulic expansion device 203 is arranged at the lower part of the material separating plate 202, and an expansion controller 204 communicated with the central control system is arranged on the hydraulic expansion device.
The rear wall of the distributing hopper 1 is provided with a sensor which comprises a temperature sensor and a humidity sensor, and the temperature and the humidity are directly transmitted to a central control system in a driving control room after the real-time temperature and the real-time humidity are obtained, so that the digital information acquisition of the paver is realized.
When the hydraulic telescopic device 203 is contracted, the distributing plate 202 and the horizontal plane form a plane, so that paving materials are directly distributed to the first paver and conveyed to two sides of the first paver for leveling paving through the screw conveyor of the first paver 2; when the hydraulic telescoping device 203 is extended, the material distributing plate 202 forms a certain included angle with the horizontal plane, so that the paving material is thrown and distributed to the second paver 7, and is conveyed to two sides of the second paver for leveling paving through a screw conveyor of the second paver 7. Here, the included angle between the material dividing plate and the horizontal plane is controlled to be 40-45 degrees.
When the hydraulic telescopic device is extended, the maximum displacement of paving materials distributed to the second paver is determined by controlling the included angle between the distributing plate and the horizontal plane and the transmission speed of the conveyor belt according to the following formula:
wherein s is the maximum displacement, g is the gravitational acceleration, v 0 Is the transmission speed of the conveyor belt; θ is the included angle between the material dividing plate and the horizontal plane; l is the length of the distributing plate.
In the existing double-layer paving process, a plurality of hoppers or a plurality of feeding devices are adopted, so that the whole structure of the paving process is more loose, and the time interval between two paving processes in the sequential paving process is necessarily increased due to the increase of components, so that the flatness, the bonding strength, the possibility of interlayer pollution and the compactness are affected. According to the technical scheme, the maximum displacement of paving materials from the material distribution to the second paver can be regulated and controlled by simply controlling the transmission speed of the conveyor belt and the included angle between the material distribution plate and the horizontal plane, so that the first paver and the second paver can be fed for multiple times through one material distribution hopper, the field required by paving is reduced, the construction difficulty is reduced, on the other hand, the plurality of hoppers are avoided, the paving process structure and flow are more compact, the paving flatness and bonding strength are further improved under the 'hot-receiving' paving condition, the possibility of interlayer pollution is reduced, the problem of low compactness of asphalt caused by temperature loss is solved, the double-layer paving shortens the construction period, and good engineering applicability is realized.
In addition, the reason that the angle range of the material distributing plate and the horizontal plane is 40-45 degrees is that through multiple times of verification of the applicant penetrating each paving site, although the maximum displacement of the paving material can be regulated and controlled by controlling the angle between the material distributing plate and the horizontal plane and the transmission speed of the conveyor belt, when the angle between the material distributing plate and the horizontal plane is smaller than 40 degrees or larger than 45 degrees, the material distributing effect is influenced due to the influence of the paving material and other aspects such as site temperature and humidity. Therefore, the included angle range of the material dividing plate and the horizontal plane is 40-45 degrees.
The second ironing device 8 is used for finishing the ironing work of the second paving, and the internal structure comprises:
the screed 801 is used for performing ironing and tamping on the mixture paved for the second time, so as to ensure the road surface to be flat;
the detachable connecting rod 802 is used for connecting the second paver and the second ironing device, the connecting rod is detachable, and the ironing device is detachable when the paver is not in working state, or the ironing device is lifted to a certain height from the ground, so that the ironing device is prevented from being damaged;
and the moving device 803 ensures that the screed plate moves stably on the ground.
The first driving device 4 and the second driving device 6 are used for driving the paver to stably run, and a control system is arranged on the first driving device and the second driving device and can directly control the moving direction and the moving speed by the central control system to finish the paver moving work in the paving work.
The laser monitoring devices 9 are fixed in the front-back direction of the paver, can form a group in the paving process, determine the paving smoothness of the pavement through the reflection effect of laser, feed back the monitoring result to the central control system, and the central control system can adjust the paving work in time according to the smoothness.
The technical scheme of the application also provides a digital autonomous double-layer paving method, which comprises the following steps:
step 1: the distributing hopper receives the first paving material, and is conveyed to the inside of the first paver through the conveyor belt, so that the distributing plate and the horizontal plane form a plane, and the first paving material is directly distributed to the first paver.
Step 2: the spiral conveyer of the first paver conveys the first paving material to two sides of the paver for leveling and paving to form a first paving layer, and the first ironing device performs ironing operation on the first paving layer.
Step 3: the distributing hopper receives the second paving material, and the second paving material is conveyed to the inside of the first paver through the conveying belt, so that a certain included angle is formed between the distributing plate and the horizontal plane, and the second paving material is thrown and distributed to the second paver.
Step 4: and conveying the second paving material to two sides of the paver by a spiral conveyer of the second paver to perform leveling paving to form a second paving layer, and performing ironing operation on the second paving layer by a second ironing device.
In summary, the technical scheme of the application relates to an asphalt pavement paving device and an asphalt pavement paving method, in particular to a digital autonomous double-layer paving device and an asphalt pavement paving method for asphalt bridge deck pavement construction. The technical scheme of the application has high degree of automation, is more prone to digitization, intellectualization and autonomy, realizes manual control and the intellectualization of the autonomous running of the equipment, and has the advantages of saving manpower, improving precision, construction efficiency and quality; the technical scheme of the application has ingenious structure, realizes double-layer paving, greatly improves the paving evenness and bonding strength, reduces the possibility of interlayer pollution, and simultaneously solves the problem of low compactness of asphalt caused by temperature loss; the technical scheme of the application provides the high-efficiency and accurate digital autonomous double-layer paver, so that the manual operation difficulty is reduced, and the service life of the asphalt concrete pavement is prolonged.
While only the basic principles and preferred embodiments of the present application have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application.
Claims (7)
1. A digital autonomous bi-layer paving device, comprising:
the distribution hopper is internally provided with a conveyor belt which extends to the inside of the first rear paver and is used for receiving and conveying different paving materials;
the first paver and the second paver are sequentially arranged behind the distributing hopper and are used for receiving paving materials and respectively performing first paving and second paving, wherein a conveyor belt, a distributing plate and a spiral feeder which are sequentially communicated are arranged in the first paver, and a first driving device is arranged at the lower part of the first paver; a spiral feeder is arranged in the second paver, and a second driving device is arranged at the lower part of the second paver; the front and rear parts of the bottoms of the first paver and the second paver are respectively provided with a laser monitoring device; the lower part of the material distributing plate is provided with a hydraulic telescopic device, and the hydraulic telescopic device is provided with a telescopic controller communicated with the central control system;
the first ironing device is positioned between the first paver and the second paver and is used for carrying out ironing operation on the paving material after the first paving;
the second ironing device is positioned behind the second paver and is used for ironing the paving material paved for the second time,
after the hydraulic telescopic device is contracted, the distributing plate and the horizontal plane form a plane, so that paving materials are directly distributed to the first paver and conveyed to two sides of the first paver through the spiral conveyor for leveling and paving; when the hydraulic telescopic device stretches, the distributing plate forms a certain included angle with the horizontal plane, so that paving materials are thrown and distributed to the second paver and conveyed to two sides of the second paver for leveling and paving through the spiral conveyor.
2. The digitized autonomous double layer paving apparatus of claim 1, wherein the dividing plate has an included angle with the horizontal ranging from 40 ° to 45 °.
3. The digitized autonomous double layer paving apparatus of claim 1 wherein upon extension of the hydraulic telescoping device, a maximum displacement of paving material thrown to the second paver is determined by controlling an angle of the spreader plate with the horizontal plane and a transfer speed of the conveyor belt and according to the following equation:
wherein s is the maximum displacement, g is the gravitational acceleration, v 0 Is the transmission speed of the conveyor belt; θ is the included angle between the material dividing plate and the horizontal plane; l is the length of the distributing plate.
4. The digitized autonomous double layer paving apparatus of claim 1, wherein the first paver has a cab on the upper portion,
wherein, control system and monitor in the driver's cabin is equipped with in the control system, control system includes in the control system: GPS positioning system, laser processing system, environment monitoring system.
5. The digitized autonomous bi-layer paving apparatus of claim 1, wherein the first screed is a first heatable screed connected between a first paver and a second paver; the second ironing apparatus includes: and the second moving device is connected with the detachable connecting rod of the second paver, the second heatable screed plate and the lower part.
6. A digitized autonomous double layer paving method employing the digitized autonomous double layer paving apparatus of any of claims 1-5, the digitized autonomous double layer paving method comprising:
step 1: the distributing hopper receives the first paving material, and the first paving material is directly distributed after being conveyed into the first paver through the conveyor belt;
step 2: the first paving machine paves the first paving material to form a first paving layer, and the first ironing device performs ironing operation on the first paving layer;
step 3: the distributing hopper receives the second paving material, and the second paving material is thrown and distributed to the second paver after being conveyed into the first paver through the conveyor belt;
step 4: the second paver paves the second paving material on the first paving layer to form a second paving layer, and the second ironing device performs ironing operation on the second paving layer.
7. The method for autonomous bi-layer paving for lettering according to claim 6, wherein said step 1 comprises: the distributing hopper receives the first paving material, and is conveyed into the first paver through the conveying belt, so that the distributing plate and the horizontal plane form a plane, and the first paving material is directly distributed to the first paver; the step 3 specifically includes: the distributing hopper receives the second paving material, and is conveyed to the inside of the first paver through the conveying belt, so that a certain included angle is formed between the distributing plate and the horizontal plane, and the second paving material is thrown and distributed to the second paver.
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| CN202211289222.0A CN115450090B (en) | 2022-10-20 | 2022-10-20 | Digital autonomous double-layer paving device and paving method |
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| CN105178144A (en) * | 2015-10-08 | 2015-12-23 | 江苏奥新科技有限公司 | Double-layer spreading and paving integrated machine realizing hot in-place recycling and working process of double-layer spreading and paving integrated machine |
| CN212505741U (en) * | 2020-04-25 | 2021-02-09 | 河南省金德园林绿化工程有限公司 | High-efficient pitch device that paves |
| CN213804762U (en) * | 2020-08-12 | 2021-07-27 | 中电建路桥集团有限公司 | Paver for double-layer continuous paving construction of road |
| WO2022083078A1 (en) * | 2020-10-23 | 2022-04-28 | 徐工集团工程机械股份有限公司道路机械分公司 | Spreader having double material level sensors and method for controlling material level height |
| CN114381981A (en) * | 2022-01-28 | 2022-04-22 | 中电建路桥集团有限公司 | Construction method for double-layer combined paving test section of guide way |
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