CN113564986A - Synchronous gravel seal layer paver and construction method - Google Patents
Synchronous gravel seal layer paver and construction method Download PDFInfo
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- CN113564986A CN113564986A CN202110927221.3A CN202110927221A CN113564986A CN 113564986 A CN113564986 A CN 113564986A CN 202110927221 A CN202110927221 A CN 202110927221A CN 113564986 A CN113564986 A CN 113564986A
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- 238000003892 spreading Methods 0.000 claims abstract description 38
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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
- E01C19/12—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 distributing granular or liquid materials
- E01C19/21—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 distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
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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
- E01C19/02—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 preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
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Abstract
The invention discloses a synchronous macadam seal coat paver with a minimally invasive milling and brushing pretreatment function and a construction method, wherein the synchronous macadam seal coat paver comprises a rack, an internal combustion engine, a mineral hopper, a mineral aggregate transferring system, an asphalt heating and heat insulating device, an asphalt transferring system, an operation platform, a milling and brushing device, an asphalt spraying device and a macadam spreading device; in the construction process, the milling and brushing device performs minimally invasive milling and brushing, napping and brushing pretreatment on the road surface in real time. Sundries such as mineral aggregate scattered on the road surface are eliminated; removing dust, oxide layers, unstable materials and the like on the pavement; the cleanliness of a road surface is obviously improved, the interlayer adhesive force is enhanced, and the occurrence of diseases is reduced; the milling brush and the sweeping brush have high density, wide width and flexible change, uniform spraying and spreading, strong cohesive force, superior pavement quality and performance and prolonged service life of the pavement. The structure is simple, the layout is scientific, the operation and the control are simple, and the popularization and the application are convenient; high yield, high efficiency, stable and reliable performance and durability. Is suitable for construction in various operation surfaces and environments. The peak reaching by carbon and the neutralization by carbon are met.
Description
Technical Field
The invention belongs to the technical field of engineering mechanical equipment and construction methods required by road and airport construction, maintenance and repair and other pavement operations. In particular to a synchronous chip sealer.
Background
The synchronous chip seal technology becomes an important component in road construction and pavement maintenance and repair engineering. The synchronous chip seal is carried out by spraying asphalt (modified asphalt, etc.) and spreading mineral aggregate simultaneously, so that the asphalt binder and mineral aggregate have sufficient contact to reach maximum adhesion degree to form a thin layer of pavement. The method can be used for performing preventive maintenance, early maintenance, rut filling and repairing, pavement appearance improvement and the like on the surface function of the road. The adhesive has the functions of adhesion, water resistance and the like in the lower sealing layer in the construction of road surfaces, airport runways and the like. Effectively improve road service performance and prolong road service life. The synchronous gravel seal layer paving equipment and the construction technical method have important influence on construction quality and performance.
A large number of studies at home and abroad show that the improper treatment between pavement layers is one of the important reasons for causing the quality problem of the synchronous chip seal pavement, because the original road surface layer and the synchronous chip seal surface layer are two materials and processes with different structures, if the interlayer bonding force is insufficient, the load caused by pavement traveling is added through the four seasons alternation of the natural environment, particularly heavy load and overload, and the extrusion and shearing deformation between the layers are continuously accumulated, so that the synchronous chip seal pavement has the defects of early falling, cracks, pitted surfaces, pushing, uneven pavement and the like.
In addition, the existing equipment design scheme shows that: the effective power of the equipment is limited, and the functionality is single, so that when the prior synchronous chip sealer is used for preprocessing the pavement, the pretreatment needs to be carried out in advance by using separate equipment. Thereby unrestrained mineral aggregate can't in time be cleared up in the work progress and fall, must cause shop front bonding quality problem, directly influences shop front quality effect.
In particular to a method for carrying out a pretreatment process on the road surface before the paving construction of the synchronous gravel sealing layer at present, which generally adopts the independent adoption of non-special cleaning equipment and a shoulder-back portable blower to carry out the pretreatment on the road surface before the construction. The engineering practice reflects: the technical method has very limited cleaning effect on road surfaces of deposited ash layers, asphalt oxidation layers, unstable materials and the like of the original road surface, and obviously cannot meet the design requirement of a construction process; and the non-structural culture pavement cannot be napped to increase the bonding area and enhance the bonding force between pavement layers. Therefore, the traditional micro-surfacing pretreatment construction process method is very labor-consuming, time-consuming, low in construction efficiency, large in occupied equipment and manpower, high in construction cost, uneconomical and not suitable for carbon peak reaching and carbon neutralization.
The above problems have not been solved effectively.
Disclosure of Invention
The invention aims to solve the technical defects and discloses a synchronous broken stone seal paver with a minimally invasive milling and brushing pretreatment function and a construction method. By the innovative design of the 'dry' minimally invasive milling and brushing pretreatment device, the milling and brushing device is used for performing pretreatment, namely minimally invasive finish milling, milling and brushing, minimally invasive napping, brushing and other processes on the road surface in real time in the process of implementing synchronous gravel seal layer paving operation. Therefore, the quality problems of interlayer bonding spot leakage and the like caused by the fact that the asphalt bonding material cannot be sprayed to the position due to the particle materials (such as scattered mineral materials during construction operation, residues left after milling and finishing the pavement and the like) on the pavement can be effectively solved; secondly, deposited ash layers, asphalt oxide layers, unstable materials and the like on the original pavement can be effectively removed; after high-speed strong milling and brushing, the adhesive can play a role in minimally invasive napping on the road surface, particularly on the unstructured cultural road surface, the adhesive area is increased, and the adhesive strength is improved. Thereby achieving the purposes of obviously enhancing the adhesive force between the spreading surface layers of the synchronous gravel seal layer, having excellent spreading quality performance by spraying and reducing the occurrence of pavement diseases. The invention has the advantages of economy, practicality, strong applicability, convenient and simple application, high efficiency, large output, stable, reliable and durable performance, energy conservation, environmental protection and prolonged service life of the pavement. Is suitable for construction in various working surfaces and environments.
In order to achieve the purpose, the invention provides the following technical scheme: a synchronous macadam seal coat paver comprises a rack (chassis), an internal combustion engine, a hydraulic system, a gas circuit system, a circuit system, an operation platform, a control system, a walking device, a mineral aggregate transferring system, an asphalt heating and heat insulating device, a milling and brushing device, an asphalt spraying device and a macadam spreading device. In the construction process of the synchronous gravel sealing layer, the milling and brushing device performs pretreatment processes such as minimally invasive finish milling and brushing (the preferred milling and brushing depth is 0.2-0.4 mm), minimally invasive napping, brushing and the like on the pavement surface layer in real time by performing high-speed rotation motion. Effectively eliminating the problems of particle materials on the road surface, removing deposited ash layers, asphalt oxidation layers, unstable materials and the like on the original road surface, slightly roughening the road surface, and simultaneously quickly discharging the milled and brushed waste materials to the two sides of the road surface to be constructed for centralized collection. The pavement cleanliness is improved, the bonding strength is improved, the interlaminar adhesive force of the paving surface of the synchronous gravel seal is obviously enhanced, and the paving quality of the synchronous gravel seal is superior.
In the scheme, the milling and brushing device is preferentially arranged at a spatial position between the lower part of the rear part of the rack (chassis), the rear part of the walking device and the front part of the asphalt spraying device. Or is arranged below the front part of the frame and in front of the running gear, or is arranged between the middle part of the frame and the front wheel and the rear wheel (or the crawler belt) of the running gear.
The milling and brushing device comprises a milling and brushing cleaning device, a milling and brushing shaft bracket, a milling and brushing hydraulic motor or an electric motor or a pneumatic motor. The milling brush is arranged on the milling brush shaft, the milling brush shaft support is used for supporting the milling brush shaft to rotate, and the milling brush shaft is in transmission connection with a milling brush hydraulic motor or an electric motor or a pneumatic motor. Preferably, a hydraulic motor is selected and driven by a hydraulic pump matched with the hydraulic motor and in transmission connection with the transfer case, so that the milling brush shaft and the milling brush are driven to rotate at high speed, and the working rotating speed of the milling brush device is adjusted through the rotating speed of the hydraulic motor.
The cleaning and milling brush can be installed on the milling brush shaft in a quick detachable mode, and is a spiral brush roller, a sweeper brush, a cylindrical brush roller, a conical brush, a disc brush or the like and is selected according to specific working conditions. The cleaning and milling brush is made of metal wires, nylon, polypropylene, polyester, natural fibers and other materials. The shape of the cleaning and milling brush is suitable for being selected according to the specific working conditions on site, for example: the rut road surface is preferably a sweeper brush or a conical brush, and the milled road surface is preferably a metal wire spiral brush roller.
The milling and brushing device is provided with a milling and brushing lifting mechanism. The milling brush lifting mechanism is used for realizing the contact and the separation of the working surface of the milling brush and the road surface, and further adjusting the contact degree of the milling brush and the road surface.
In the scheme, the milling brush lifting mechanism comprises a lifting arm, an oil cylinder I and an oil cylinder II, and a group of lifting arms is arranged on each of two sides of the rack. One end of an oil cylinder I is connected with the middle of the rack, the other end of the oil cylinder I is connected with the front portion of the lifting arm, one end of an oil cylinder II is connected with the tail portion of the rack, the other end of the oil cylinder II is connected with the rear portion of the lifting arm, and the rear portion of the lifting arm is fixedly connected with the milling and brushing shaft support through bolts. The lifting and the front-back and left-right angle inclination of the milling and brushing device are realized through two groups of oil cylinders I, II and lifting arms; the working surface of the cleaning and milling brush is contacted with or separated from the road surface; adjusting the contact ratio of the cleaning and milling brush and the road surface; the optimal working posture of the milling and brushing device is ensured.
In the scheme, the milling brush lifting mechanism comprises a lifting oil cylinder, one end of the milling brush lifting oil cylinder is movably connected with the rack, the other end of the milling brush lifting oil cylinder is movably connected with the milling brush shaft support, the milling brush cleaning working surface is in contact with and separated from the road surface through the stretching of the milling brush lifting oil cylinder, and the contact degree of the milling brush cleaning working surface and the road surface is further adjusted.
The milling and brushing device is provided with a milling and brushing telescopic device, and the milling and brushing telescopic device has a telescopic function and is used for changing the working width of the milling and brushing device. The milling brush telescopic device can be divided into two forms: one type of the milling brush device is formed by two spiral brush rollers or cylindrical brush rollers in parallel, and the expansion and contraction of the milling brush device are realized through a slide rail or a guide telescopic sleeve on a milling brush shaft bracket to change the working width of the milling brush device; the other type of milling and brushing shaft bracket is of a swing arm type structure, one end of the bracket is hinged on the rack, the other end of the bracket is suspended, a plurality of groups of swing arms form a milling and brushing device, and the working width of the whole milling and brushing device, such as a sweeper brush, is changed by unfolding, folding, lifting and descending the swing arms.
In the above scheme, the milling brush telescopic device comprises a telescopic oil cylinder or a telescopic air cylinder, and the telescopic oil cylinder or the telescopic air cylinder stretches to drive the milling brush telescopic device to expand and furl, so that the whole working width of the milling brush device is adjusted and changed, preferably by a hydraulic oil cylinder.
The milling brush telescopic device can also change the overall working width of the long and short milling brush rolls in a mechanical mode through splicing or replacing. The milling brush telescopic device comprises a lengthened milling brush shaft and a lengthened milling brush shaft bracket; the lengthened milling brush shaft is in transmission connection with the milling brush shaft in a quick disassembly mode, and the lengthened milling brush shaft support is fixedly connected to the milling brush shaft support in a quick disassembly mode. Or a delta-shaped splicing mode. To vary the overall working width of the scrub brush device.
The milling and brushing quick dismounting device realizes that the milling and brushing device is quickly mounted on the rack and quickly dismounted from the rack, and if: bolt fixed connection, cutting ferrule formula connection, nested formula connection etc..
The invention also provides a construction method of the synchronous chip seal paver, which adopts the synchronous chip seal paver to carry out construction operation and specifically comprises the following steps:
firstly, setting the addition output quantity of each raw material and fiber according to the requirement of a technical document of the mixing ratio of construction design; the method comprises the steps of firstly spraying, spreading and paving a test section, determining the optimal output quantity of the added raw materials and fibers, determining the optimal spraying temperature, pressure and flow of asphalt, determining the optimal spreading quantity of broken stones, and determining the optimal spreading construction advancing speed of equipment.
Secondly, the milling and brushing device works when spraying, spreading and paving construction work is carried out; and selecting the shape and the working width of the milling brush device matched with the spraying spreading width according to the requirement of the spraying spreading width.
And thirdly, when the milling and brushing device is designed on a synchronous chip sealer vehicle (vehicle-mounted synchronous chip sealer paver). During construction, the raw materials are additionally arranged according to the original mode, and the construction is carried out between the material yard and the construction site.
When the milling and brushing device is designed on a continuous-construction synchronous chip sealer paver (crawler type), namely the synchronous chip sealer paver integrates material receiving, material transferring, material preparing, "minimally invasive" pretreatment, asphalt spraying and chip spreading, and the construction method is used for construction operation. Selecting the relative position of a mineral aggregate dump truck and a transport asphalt truck with the synchronous broken stone seal paver when transporting raw materials, and continuously transporting the raw materials at the determined advance speed of the spraying, spreading and paving construction to realize continuous construction of material transportation and spraying, spreading and paving; or performing intermittent construction after the raw materials are successively transported on the construction site in a parking state, wherein the selection mode is as follows:
mode 1: transport the pitch car and be in a synchronous rubble seal paver is any side pipe connection all around a feed pitch pump I import, and the defeated pitch of parking state arrives in the pitch heating heat preservation device, and mineral aggregate dump truck afterbody butt joint the defeated of receiving after the hopper is unloaded defeated in the rubble spills among the distribution device can accomplish under the synchronous state of marcing of tire behind parking state or pushing roll top mineral aggregate dump truck under the state, so carry out intermittent type formula technology construction after the material is transported in the circulation repeatedly under the parking state. Or the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the asphalt conveying vehicle is positioned at any one side of the two sides of the synchronous broken stone seal paver and is connected with the inlet of the feeding asphalt pump I through a pipeline, and the raw materials are repeatedly and circularly conveyed in the advancing state for continuous construction.
Mode 2: the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the conveying asphalt truck is positioned in front of the mineral aggregate dump truck, and the pipeline is connected with the feeding asphalt pump I; and the raw materials are repeatedly and circularly transferred in the advancing state to carry out continuous construction, or the raw materials are repeatedly and circularly transferred in the stopping state to carry out intermittent construction after the completion of the repeated and circularly transferring.
Mode 3: mineral aggregate and asphalt are adopted on a special transport vehicle, the tail part of the special transport vehicle is butted with the receiving hopper for unloading, the pushing roller pushes the rear tire of the special transport vehicle, the pipeline is connected with the inlet of the feeding asphalt pump I, raw materials are continuously transported, the raw materials are repeatedly transported in a circulating way, the raw materials are spread while being transported, and continuous process construction is carried out, or intermittent process construction is carried out after the raw materials are repeatedly transported in a circulating way in a parking state.
Mode 4: the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the conveyed asphalt truck is arranged behind the synchronous broken stone seal paver, and the pipeline is connected with the feeding asphalt pump II; and the raw materials are repeatedly and circularly transferred in the advancing state to carry out continuous construction, or the raw materials are repeatedly and circularly transferred in the stopping state to carry out intermittent construction after the completion of the repeated and circularly transferring.
Fourthly, selecting a corresponding pavement pretreatment mode according to the technical file requirements of the construction design process before the synchronous gravel sealing layer is paved; firstly, the lower edges of a push plate and a lengthened push plate which are arranged on the pushing device are in linear contact with the road surface, and the scattered mineral materials or the useless materials on the road surface are pushed to the two sides of the road surface to be constructed in the construction advancing process and then collected in a centralized manner; secondly, the punching and milling device can adjust the water pressure and the height and angle of the water nozzle above the ground to perform high-pressure water flow minimally invasive punching and milling on the road surface to be constructed, and minimally invasively punches and mills the asphalt oxide layer, the sediment, the loose stone and other unfavorable substances on the surface layer of the road surface and washes away the unfavorable substances; the milling and brushing device rotates at a high speed again, so that the conventional pavement cleaning can be implemented to clean the pavement to be constructed, and the 'minimally invasive milling and brushing' can be carried out on the pavement to be constructed, and the mechanical milling and brushing of harmful substances such as asphalt oxide layers, sediments, loose stones and the like on the surface layer of the pavement is minimally invasive; the milling and brushing device is particularly used for the road surface corrected by cold milling and can effectively clean the road surface.
And fifthly, spraying asphalt and spreading broken stone according to the set output quantity by the asphalt and the mineral aggregate, and then carrying out asphalt spraying broken stone spreading or rutting filling operation according to the determined construction advancing speed.
And sixthly, road surface health preserving.
And step seven, opening traffic.
Compared with the prior art, the invention has the following advantages
1. The invention discloses a synchronous chip seal paver which has a dry-type milling and brushing pretreatment function, and carries out minimally invasive finish milling and brushing, minimally invasive roughening, brushing and other pretreatment processes on a road surface in real time in the spraying, spreading and paving construction process. The equipment and the construction method are suitable for construction operation in various operation surfaces and environments.
2. High-energy, high-efficiency and high-quality: effectively removing deposited ash layers, asphalt oxide layers, unstable materials and the like on the original pavement; the quality problems of interlayer bonding spot leakage and the like caused by the fact that the asphalt bonding material cannot be sprayed to the position due to the particle materials on the pavement are effectively solved; the bonding area can be increased for the minimally invasive napping of the pavement. The bonding force between the paving surface layers of the synchronous gravel seal layer is obviously enhanced, the paving quality performance is excellent, the occurrence of pavement diseases is reduced, and the service life of the pavement is prolonged.
3. The applicability and the popularization are strong: the design scheme is not only used on the continuous synchronous chip sealer paver integrating receiving, transferring and batching, minimally invasive pretreatment, asphalt spraying and chip spreading, but also can upgrade and improve the existing vehicle-mounted synchronous chip sealer and the like very conveniently, and the original equipment structure and system are not required to be changed.
4. Economic and environment-friendly: the construction efficiency is high, other equipment and manpower are not needed, the pavement pretreatment and the spreading and spreading operation are completed at one time, and the method saves labor, trouble, time, economy, practicality, energy and environment.
5. The performance function is stable and reliable: the design structure layout is compact and simple, and the design is scientific and reasonable. The working performance is reliable, stable and durable, and the use and the operation are easy, simple, convenient, multifunctional, multipurpose and intelligent. The use and maintenance cost is low, and the cost performance is high.
Drawings
The invention is further illustrated by the following figures and examples, in which:
FIG. 1 is a schematic structural view (continuous type) of the scheme of the present invention.
Fig. 2 is a schematic structural diagram (vehicle-mounted) of the scheme of the invention.
FIG. 3 is an enlarged view of a portion of a scrub brush device in accordance with aspects of the present disclosure.
Description of reference numerals:
1-a frame; 2-an internal combustion engine; 4-a hydraulic system; 5, a gas path system; 6-circuitry;
7-control platform and control system; 10-a walking device; 12-a mineral aggregate transport system;
13-a bitumen transfer system; 14-asphalt heating and heat preserving device;
16-a milling and brushing device;
161-cleaning a milling brush; 162-milling a brush shaft; 163-milling brush shaft holder; 164-a brush motor;
165-a milling brush lifting mechanism;
1651-a lift arm; 1652-oil cylinder I; 1653-oil cylinder II;
166-milling brush telescoping device; 167-milling and brushing quick dismounting device;
17-a bitumen spraying device; 18-gravel spreading device.
Example 1
As shown in figures 1 and 2, the synchronous gravel seal paver comprises a frame-1, an internal combustion engine-2, a hydraulic system-4, a gas circuit system-5, a circuit system-6, a control platform and control system-7, a traveling device-10, a mineral aggregate conveying system-12, an asphalt conveying system-13, an asphalt heating and heat insulating device-14, a milling and brushing device-16, an asphalt spraying device-17 and a gravel spreading device-18. In the process of synchronous chip seal construction, the milling and brushing device-16 performs the pretreatment processes of minimally invasive finish milling and planing and brushing, milling and brushing, minimally invasive roughening and brushing and the like on the road surface in real time by performing high-speed rotation movement and forming a certain line or surface contact with the road surface in a proper superposition manner. Effectively eliminate the particle material on the road surface, for example: the quality problems of interlayer bonding spot leakage and the like caused by the fact that the asphalt bonding material cannot be sprayed to the position due to scattered mineral materials during construction operation, residues left after milling and finishing the pavement and the like. Effectively remove deposited ash layer, asphalt oxide layer, unstable material and the like on the original pavement. After high-speed powerful milling and brushing, the method can play a role in minimally invasive napping on the road surface, and particularly on the non-cultural road surface, the milled and brushed waste materials are quickly discharged to the two sides of the road surface to be constructed and collected in a centralized manner. The method has the advantages of improving the road surface cleanliness, increasing the bonding area, improving the bonding strength, remarkably enhancing the bonding force between the paved layers of the synchronous chip sealer, and having excellent paving quality performance by spraying.
As shown in FIG. 1, the milling and brushing device-16 is preferably arranged at a spatial position between the lower part of the rear part of the machine frame-1 and the rear part of the traveling device-10 and the front part of the asphalt spraying device-17.
As shown in figure 2, the milling and brushing device-16 on the vehicle-mounted type continuous synchronous chip sealer paver, the crawler belt or the wheel type continuous synchronous chip sealer paver can also be designed below the front part of the frame-1 and in front of the walking device-10. When the synchronous rut gravel seal filling construction operation is carried out, the milling and brushing device-16 is preferably arranged between the lower part of the middle part of the frame-1 and the front wheel and the rear wheel (or the crawler belt) of the traveling device-10, and a sweeper brush or a conical brush is preferably adopted.
Example 2
As shown in fig. 1, 2 and 3, the milling and brushing device-16 comprises a milling and brushing device-161, a milling and brushing shaft-162, a milling and brushing shaft support-163 and a milling and brushing motor-164, wherein the milling and brushing motor-164 is a hydraulic or electric motor or a pneumatic motor. The milling brush-161 is arranged on the milling brush shaft-162, the milling brush shaft bracket-163 is used for supporting the milling brush shaft-162 to rotate, and the milling brush shaft-162 is in transmission connection with the milling brush motor-164. Preferably, a hydraulic motor is used, and the milling brush motor-164 is driven by a hydraulic pump matched with the hydraulic motor and in transmission connection with the transfer case-3, so that the milling brush shaft-162 and the milling brush-161 are driven to rotate at high speed, and the working rotating speed of the milling brush device is adjusted through the rotating speed of the milling brush motor-164.
Example 3
As shown in fig. 1 and 2, the cleaning brush-161 is mounted on the milling brush shaft-162 in a quick-detachable manner, and the cleaning brush-161 is a spiral brush roller, or a sweeper brush, or a cylindrical brush roller, or a conical brush, or a disc brush, etc. The cleaning and milling brush-161 is made of metal wire, nylon, polypropylene, polyester, natural fiber and other materials. The shape of the cleaning and milling brush-161 is selected according to the specific working conditions on site, for example: the rut road surface is preferably a sweeper brush or a conical brush, and the milled road surface is preferably a metal wire spiral brush roller.
Example 4
As shown in fig. 1 and 2, the milling and brushing device-16 is designed with a milling and brushing elevating mechanism-165. The milling brush lifting mechanism-165 is used for realizing the contact and the separation of the working surface of the milling brush-161 and the road surface, and further adjusting the contact ratio of the milling brush-161 and the road surface.
Example 5
As shown in fig. 1 and 2, the milling brush lifting mechanism-165 comprises a lifting arm-1651, an oil cylinder i-1652 and an oil cylinder ii-1653, and two groups are respectively arranged on two sides of the frame-1. One end of an oil cylinder I-1652 is connected with the middle of the rack-1, the other end of the oil cylinder I-1652 is connected with the front portion of the lifting arm-1651, one end of an oil cylinder II-1653 is connected with the tail portion of the rack-1, the other end of the oil cylinder II-1653 is connected with the rear portion of the lifting arm-1651, and the rear portion of the lifting arm-1653 is fixedly connected with the milling and brushing shaft support-163 through bolts. The lifting, the front-back and the left-right angle inclination of the milling and brushing device-16 are realized through two groups of oil cylinders I-1652, oil cylinders II-1653 and lifting arms-1651; the working surface of the cleaning and milling brush-161 is contacted with or separated from the road surface; adjusting the contact ratio of the cleaning and milling brush and the road surface; the optimal working posture of the milling and brushing device-16 is ensured.
Example 6
As shown in fig. 2, the milling and brushing lifting mechanism comprises a milling and brushing lifting oil cylinder, one end of the milling and brushing lifting oil cylinder is movably connected with the frame-1, and the other end of the milling and brushing lifting oil cylinder is movably connected with a milling and brushing shaft bracket-163, so that the milling and brushing device-16 is lifted and inclined at a front-back angle and a left-right angle through the expansion and contraction of the oil cylinder; the working surface of the cleaning and milling brush-161 is contacted with or separated from the road surface; adjusting the contact ratio of the cleaning and milling brush and the road surface; the optimal working posture of the milling and brushing device-16 is ensured.
Example 7
As shown in fig. 1 and 2, the milling-brush device-16 is designed with a milling-brush expansion device-166, and the milling-brush expansion device-166 has an expansion function for changing the working width of the milling-brush cleaning. The milling brush telescopic device-166 can be divided into two forms: one type is formed by two spiral brush rolls or cylindrical brush rolls in parallel, and the expansion and contraction of the milling and brushing device are realized through a slide rail or a guide telescopic sleeve on a milling and brushing shaft bracket-163 to change the working width of the milling and brushing device; the other milling and brushing shaft bracket 163 is of a swing arm type structure, one end of the bracket is hinged on the rack-1, the other end of the bracket is suspended, a milling and brushing device is formed by a plurality of groups of swing arms, and the working width of the whole milling and brushing device is changed by unfolding, folding, lifting and descending the swing arms.
Example 8
As shown in fig. 1 and 2, the milling brush telescopic device-166 includes a telescopic oil cylinder or a telescopic air cylinder, and the telescopic oil cylinder or the telescopic air cylinder extends and retracts to drive the milling brush telescopic device-166 to expand and contract, so as to adjust and change the overall effective working width of the milling brush telescopic device-166, preferably the oil cylinder.
Example 9
As shown in fig. 1 and 2, the wiper extension-166 may also be mechanically modified to change the overall working width by splicing or replacing long and short brush rolls. The milling brush telescopic device-166 comprises a lengthened milling brush shaft and a lengthened milling brush shaft bracket; the lengthened milling brush shaft is in transmission connection with the milling brush shaft-162 in a quick disassembly mode, and the lengthened milling brush shaft support is fixedly connected to the milling brush shaft support-163 in a quick disassembly mode. To vary the overall working width of the scrub brush device-16.
Example 10
As shown in fig. 2, the milling brush quick dismounting device-167, where the milling brush quick dismounting device-167 implements the function of quickly mounting and dismounting the milling brush device-16 on and from the rack (chassis) -1, such as: bolt fixed connection, cutting ferrule formula connection, nested formula connection etc..
Example 11
The invention also provides a construction method of the synchronous chip seal paver, which adopts the synchronous chip seal paver to carry out construction operation and specifically comprises the following steps:
firstly, setting the addition output quantity of each raw material and fiber according to the requirement of a technical document of the mixing ratio of construction design; the method comprises the steps of firstly spraying, spreading and paving a test section, determining the optimal output quantity of the added raw materials and fibers, determining the optimal spraying temperature, pressure and flow of asphalt, determining the optimal spreading quantity of broken stones, and determining the optimal spreading construction advancing speed of equipment.
Secondly, the milling and brushing device works when spraying, spreading and paving construction work is carried out; and selecting the shape and the working width of the milling brush device matched with the spraying spreading width according to the requirement of the spraying spreading width.
And thirdly, when the milling and brushing device is designed on a synchronous chip sealer vehicle (vehicle-mounted synchronous chip sealer paver). During construction, the raw materials are additionally arranged according to the original mode, and the construction is carried out between the material yard and the construction site.
When the milling and brushing device is designed on a continuous-construction synchronous chip sealer paver (crawler type), namely the synchronous chip sealer paver integrates material receiving, material transferring, material preparing, "minimally invasive" pretreatment, asphalt spraying and chip spreading, and the construction method is used for construction operation. Selecting the relative position of a mineral aggregate dump truck and a transport asphalt truck with the synchronous broken stone seal paver when transporting raw materials, and continuously transporting the raw materials at the determined advance speed of the spraying, spreading and paving construction to realize continuous construction of material transportation and spraying, spreading and paving; or performing intermittent construction after the raw materials are successively transported on the construction site in a parking state, wherein the selection mode is as follows:
mode 1: transport the pitch car and be in a synchronous rubble seal paver is any side pipe connection all around a feed pitch pump I import, and the defeated pitch of parking state arrives in the pitch heating heat preservation device, and mineral aggregate dump truck afterbody butt joint the defeated of receiving after the hopper is unloaded defeated in the rubble spills among the distribution device can accomplish under the synchronous state of marcing of tire behind parking state or pushing roll top mineral aggregate dump truck under the state, so carry out intermittent type formula technology construction after the material is transported in the circulation repeatedly under the parking state. Or the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the asphalt conveying vehicle is positioned at any one side of the two sides of the synchronous broken stone seal paver and is connected with the inlet of the feeding asphalt pump I through a pipeline, and the raw materials are repeatedly and circularly conveyed in the advancing state for continuous construction.
Mode 2: the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the conveying asphalt truck is positioned in front of the mineral aggregate dump truck, and the pipeline is connected with the feeding asphalt pump I; and the raw materials are repeatedly and circularly transferred in the advancing state to carry out continuous construction, or the raw materials are repeatedly and circularly transferred in the stopping state to carry out intermittent construction after the completion of the repeated and circularly transferring.
Mode 3: mineral aggregate and asphalt are adopted on a special transport vehicle, the tail part of the special transport vehicle is butted with the receiving hopper for unloading, the pushing roller pushes the rear tire of the special transport vehicle, the pipeline is connected with the inlet of the feeding asphalt pump I, raw materials are continuously transported, the raw materials are repeatedly transported in a circulating way, the raw materials are spread while being transported, and continuous process construction is carried out, or intermittent process construction is carried out after the raw materials are repeatedly transported in a circulating way in a parking state.
Mode 4: the tail part of the mineral aggregate dump truck is butted with the receiving hopper for unloading, the conveyed asphalt truck is arranged behind the synchronous broken stone seal paver, and the pipeline is connected with the feeding asphalt pump II; and the raw materials are repeatedly and circularly transferred in the advancing state to carry out continuous construction, or the raw materials are repeatedly and circularly transferred in the stopping state to carry out intermittent construction after the completion of the repeated and circularly transferring.
Fourthly, selecting a corresponding pavement pretreatment mode according to the technical file requirements of the construction design process before the synchronous gravel sealing layer is paved; firstly, the lower edges of a push plate and a lengthened push plate which are arranged on the pushing device are in linear contact with the road surface, and the scattered mineral materials or the useless materials on the road surface are pushed to the two sides of the road surface to be constructed in the construction advancing process and then collected in a centralized manner; secondly, the punching and milling device can adjust the water pressure and the height and angle of the water nozzle above the ground to perform high-pressure water flow minimally invasive punching and milling on the road surface to be constructed, and minimally invasively punches and mills the asphalt oxide layer, the sediment, the loose stone and other unfavorable substances on the surface layer of the road surface and washes away the unfavorable substances; the milling and brushing device rotates at a high speed again, so that the conventional pavement cleaning can be implemented to clean the pavement to be constructed, and the 'minimally invasive milling and brushing' can be carried out on the pavement to be constructed, and the mechanical milling and brushing of harmful substances such as asphalt oxide layers, sediments, loose stones and the like on the surface layer of the pavement is minimally invasive; the milling and brushing device is particularly used for the road surface corrected by cold milling and can effectively clean the road surface.
And fifthly, spraying asphalt and spreading broken stone according to the set output quantity by the asphalt and the mineral aggregate, and then carrying out asphalt spraying broken stone spreading or rutting filling operation according to the determined construction advancing speed.
And sixthly, road surface health preserving.
And step seven, opening traffic.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all the simple modifications, changes, equivalent structural changes and construction method changes made by the technical essence of the present invention are still within the protection scope of the technical solution and method of the present invention.
Claims (11)
1. A synchronous macadam seal coat paver structurally comprises a rack (1), an internal combustion engine (2), an operation platform (7), a traveling device (10), a mineral aggregate transferring system (12), an asphalt transferring system (13), an asphalt heating and heat insulating device (14), an asphalt spraying device (17) and a macadam spreading device (18), and is characterized by comprising a milling and brushing device (16), wherein the milling and brushing device (16) is used for realizing minimally invasive milling and brushing on a road surface, and the milling and brushing device (16) is arranged below the rear part of the rack (1) and behind the traveling device (10); or is arranged below the front part of the frame (10) and in front of the walking device (10), or is arranged between the middle part of the frame (1) and the front and back walking device (10).
2. The synchronous chip seal paver of claim 1 characterized in that the brush arrangement (16) comprises a cleaning brush (161), a brush axle (162), a brush axle support (163), a brush motor (164).
3. The synchronous chip seal paver of claims 1 and 2 characterized in that the milling brush (161) is a spiral brush roller or a sweeper brush or a cylindrical brush roller or a conical brush or a disc brush.
4. The synchronous chip seal paver of claim 1 characterized in that the brush arrangement (16) comprises a brush lifting mechanism (165), the brush lifting mechanism (165) effecting contact and separation of the cleaning brush with the road surface.
5. The synchronous chip seal paver of claims 1 and 4, characterized in that the milling brush lifting mechanism comprises a lifting arm (1651), an oil cylinder I (1652) and an oil cylinder II (1653), wherein one group is arranged on each side of the frame (1), one end of the oil cylinder I (1652) is connected with the middle of the frame (1), the other end of the oil cylinder I is connected with the front part of the lifting arm (1651), one end of the oil cylinder II (1653) is connected with the tail of the frame (1), the other end of the oil cylinder II is connected with the rear part of the lifting arm (1651), and the rear part of the lifting arm (1651) is fixedly connected with a milling brush shaft support (163).
6. The micro-surfacing spreader of claims 1 and 4, wherein the brush lifting mechanism comprises a brush lifting cylinder.
7. The synchronous chip seal paver of claim 1 characterized in that the brush unit (16) comprises a brush extension unit (166), the brush extension unit (166) having a telescopic function to vary the working width of the brush unit.
8. The synchronous chip seal paver of claims 1 and 7 characterized in that the brush extension mechanism (166) comprises a telescopic cylinder or telescopic cylinder, the telescopic cylinder or telescopic cylinder effecting the expansion and contraction of the cleaning brush to vary the working width of the brush mechanism (16).
9. The synchronous chip seal paver of claims 1 and 7 wherein the brush extension (166) further comprises an elongated brush shaft, an elongated brush shaft support; the lengthened milling brush shaft and the lengthened milling brush shaft support realize mechanical lengthening and shortening of the working width of the milling brush device (16).
10. The synchronous chip seal paver of claim 1 characterized in that the brush milling device (16) further comprises a brush milling quick dismounting device (167), and the brush milling quick dismounting device (167) realizes the quick mounting and dismounting functions of the brush milling device (16).
11. A construction method of a synchronous chip seal paver, which is characterized in that the construction method is carried out by adopting the micro-surfacing paver of claim 1, and specifically comprises the following steps:
firstly, 1, setting output quantity of each raw material, 2, determining the width of asphalt spraying and broken stone spreading, and 3, determining the advancing speed of construction operation;
secondly, adjusting the working posture of the milling and brushing device during spraying, spreading and paving construction operation;
and thirdly, spraying and spreading the asphalt and the mineral aggregate according to the set output quantity for paving, and meanwhile, carrying out real-time pretreatment on the road surface by the milling and brushing device in front of the asphalt spraying device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110927221.3A CN113564986A (en) | 2021-08-13 | 2021-08-13 | Synchronous gravel seal layer paver and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110927221.3A CN113564986A (en) | 2021-08-13 | 2021-08-13 | Synchronous gravel seal layer paver and construction method |
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| CN113564986A true CN113564986A (en) | 2021-10-29 |
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