CN112942044A - Asphalt pavement aged layer removing machine and construction method thereof - Google Patents
Asphalt pavement aged layer removing machine and construction method thereof Download PDFInfo
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- CN112942044A CN112942044A CN202110308645.1A CN202110308645A CN112942044A CN 112942044 A CN112942044 A CN 112942044A CN 202110308645 A CN202110308645 A CN 202110308645A CN 112942044 A CN112942044 A CN 112942044A
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
- E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/096—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses an asphalt pavement aged layer removing machine and a construction method thereof, wherein the asphalt pavement aged layer removing machine comprises a rack, a first walking unit and a second walking unit which are connected with the rack, and a first pavement heating device, a second pavement heating device, an aged layer scarification removing device and a vertical scraping lifting device which are sequentially connected with the rack; the vertical scraping and lifting device comprises a vertical scraping and lifting unit and a rotary material conveying unit, the vertical scraping and lifting unit finishes scraping and lifting of the old asphalt mixture, the old asphalt mixture is input into the rotary material conveying unit, and the rotary material conveying unit realizes uninterrupted feeding to the material transporting vehicle. The method is suitable for being popularized and applied in hot-in-place recycling, can finish the removing operation of the aged layer of the asphalt pavement of 5-10 mm at one time, is free from step damage, and improves the quality of recycled materials.
Description
Technical Field
The invention belongs to the field of road maintenance equipment, and particularly relates to an asphalt pavement aged layer removing machine and a construction method thereof.
Background
The in-situ heat regeneration construction in the prior art has more defects, and the specific defects are as follows:
1. the asphalt pavement aging layer affects the regeneration quality. The surface layer of the asphalt pavement is aged and deteriorated after long-term sun exposure, wheel rolling and the like; in-situ thermal regeneration technology, a plurality of pavement heating machines are adopted to heat and soften the asphalt pavement, heating modes such as open fire, gas infrared, high-temperature hot air and the like are adopted to cause the aging and scorching of a material with the thickness of 5-10 mm on the surface layer of the asphalt pavement, once the asphalt material is aged and deteriorated, the performance of the asphalt material is difficult to recover, and special asphalt pavement aged layer removing equipment is not seen in the market at present;
2. the cold-milled asphalt pavement ageing layer is easy to be graded and damaged. In the existing hot in-place recycling construction, a cold milling machine is adopted to remove the surface layer material of the asphalt pavement, so that the aggregate is easily damaged, and the recycling quality is influenced; the existing cold milling is limited by the maximum milling width, the operation requirement of a 4-meter-width regeneration lane cannot be finished at one time, the time and the cost are wasted, and the requirement of modernized maintenance of the asphalt pavement cannot be well met;
3. and continuous and uninterrupted removing operation of the aged layer of the asphalt pavement cannot be realized. No special equipment for continuously and uninterruptedly removing the aged layer of the asphalt pavement is available in the in-situ heat regeneration construction.
Disclosure of Invention
Aiming at the problems, the invention provides an asphalt pavement aged layer removing machine and a construction method thereof, which are suitable for popularization and application of in-situ heat regeneration, can complete removing operation of an asphalt pavement aged layer of 5-10 mm at one time, are free from damage in a stepless matching manner, and improve the quality of reclaimed materials.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a remover for an aged layer of an asphalt pavement, comprising:
a frame;
the first walking unit and the second walking unit are connected with the rack;
the first road surface heating device, the second road surface heating device, the aging layer scarification removing device and the vertical scraping lifting device are sequentially connected with the rack;
the vertical scraping and lifting device comprises a vertical scraping and lifting unit and a rotary material conveying unit, the vertical scraping and lifting unit finishes scraping and lifting of the old asphalt mixture, the old asphalt mixture is input into the rotary material conveying unit, and the rotary material conveying unit realizes uninterrupted feeding to the material transporting vehicle.
Optionally, the asphalt pavement aged layer removing machine further comprises a third pavement heating device and a pavement heat preservation device, wherein the third pavement heating device is connected with the rack and is close to the second walking unit; and the pavement heat preservation device is connected with the third pavement heating device.
Optionally, the aged layer scarification removing device comprises a fixing frame, a lifting frame, two groups of symmetrical lifting oil cylinders, a connecting rod, a scarification material conveyor I, a sliding oil cylinder I, a scarification material conveyor II and a sliding oil cylinder II;
the fixed frame is fixed on the frame;
the lifting frame is connected with the fixed frame through a parallelogram link mechanism;
the cylinder bodies and the piston rods of the two symmetrical groups of lifting oil cylinders are respectively in pin joint with the fixed frame and the lifting frame;
the scarification material conveyor I and the scarification material conveyor II are hung below the lifting frame in a relative mode;
a cylinder body and a piston rod of the sliding oil cylinder I are respectively in pin joint with the lifting frame and the scarification material conveyor I;
and a cylinder body and a piston rod of the sliding oil cylinder II are respectively in pin joint with the lifting frame and the scarification material conveyor II.
Optionally, under the action of the lifting oil cylinder, the lifting frame can move up and down by means of the parallelogram link mechanism to complete height adjustment and ensure that the scarification material conveyor I and the scarification material conveyor II are always in a horizontal state.
Optionally, under the effect of the sliding oil cylinder I, the scarification feeder I can slide back and forth in the horizontal direction.
Optionally, under the action of the sliding oil cylinder II, the scarification conveyor II can slide back and forth in the horizontal direction.
Optionally, the scarification conveyor I and the scarification conveyor ii are both scarification screw conveyors.
Optionally, the vertical scraping and lifting unit comprises a left telescopic sleeve, a right telescopic cylinder, an up-down sliding assembly, an up-down lifting cylinder, a vertical lifting frame, a scraping bucket chain, a driving shaft, a driven shaft, a riding wheel shaft and a discharging port;
the outer cylinder of the left telescopic sleeve and the right telescopic sleeve is connected with the rack, and the inner cylinder is connected with the up-down lifting sliding component;
the cylinder body and the piston rod of the left and right telescopic oil cylinders are respectively in pin joint with the rack and the up-down lifting sliding assembly;
the vertical lifting frame is nested in the up-down lifting sliding assembly;
the cylinder body and the piston rod of the up-down lifting oil cylinder are respectively connected with the up-down lifting sliding assembly and the vertical lifting frame in a pin joint mode;
under the action of the left and right telescopic oil cylinders, the up-down lifting sliding assembly and the vertical lifting frame can realize left and right telescopic movement;
under the action of the up-down lifting oil cylinder, the vertical lifting frame can realize up-down height adjustment along the up-down lifting sliding component;
the scraper bucket chain is arranged in the vertical lifting frame;
the driving shaft, the riding wheel shaft and the driven shaft are arranged from top to bottom and are connected with the scraper bucket chain;
the discharge port is positioned at the top of the vertical lifting frame;
the rotary material conveying unit comprises a receiving hopper, a rotary support and a spiral material conveyor;
the spiral feeder is characterized in that the upper part of the spiral feeder is provided with a receiving hopper which is positioned below the discharge port, the spiral feeder is fixed on the vertical lifting frame through a slewing bearing, and the spiral feeder can realize circumferential slewing motion under the action of the slewing bearing, so that the feeding height and angle can be adjusted.
Optionally, a cab and a power system are arranged on the frame.
In a second aspect, the present invention provides a construction method for the asphalt pavement aged layer remover according to any one of the first aspect, including:
enabling the asphalt pavement aging layer removing machine to run on a regeneration lane, and enabling the material transporting vehicle to run on a lateral lane of the regeneration lane;
heating an old asphalt pavement by using a first pavement heating device and a second pavement heating device of an asphalt pavement aging layer removing machine, wherein the heating softening depth of the old asphalt pavement is more than or equal to 10mm, and the temperature of a 10mm deep layer is more than or equal to 110 ℃;
raking of an old asphalt pavement with the depth of 5-10 mm is completed by rake teeth of a raking spiral conveyor I and a raking spiral conveyor II of an aged layer raking and removing device, and the raked and loosened asphalt material on the surface is conveyed from left to right by means of the spiral conveyors; the method comprises the following steps of adjusting the scarification depth of the old asphalt pavement by means of a lifting oil cylinder, and adjusting the scarification width of the old asphalt pavement by means of a sliding oil cylinder I and a sliding oil cylinder II;
the old asphalt mixture is scraped and lifted by a scraper bucket chain of the vertical scraping and lifting device, falls into the spiral conveyor through a discharge port, a receiving bucket and a slewing bearing, and the conveying height and angle of the spiral conveyor are adjusted by the slewing bearing, so that the material is uninterruptedly supplied to the material transporting vehicle.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an asphalt pavement aged layer removing machine and a construction method thereof, which are suitable for popularization and application of in-situ thermal regeneration, can complete removing operation of an asphalt pavement aged layer of 5-10 mm at one time, are free from damage in a stepless matching manner, and improve the quality of reclaimed materials.
Furthermore, the invention adopts the technology of a vertical scraping and lifting device and a rotary material conveying device, so that the lateral continuous conveying of the old asphalt mixture is realized, and the operation efficiency is improved; the lifting oil cylinder and the parallelogram link mechanism are used for realizing the overall height adjustment of the device, and the device has good adaptability to the elimination of aging layers with different depths; the novel structure of the bidirectional sliding oil cylinder and the C-shaped slide way is adopted, the rake loosening spiral conveyor is stretched and folded, the device is rotated by 15 degrees at left and right angles by means of the rotary oil cylinder, the device has good width-variable operation, bend construction operation and traveling transportation adaptability, the mechanism is ingenious in design, and the degree of mechanization automation is high.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a front view of the asphalt pavement aged layer remover of the present invention;
FIG. 2 is a left side view of the asphalt pavement aged layer remover of the present invention;
FIG. 3 is a top view of the asphalt pavement aged layer remover of the present invention;
FIG. 4 is a perspective view of the aging layer scarification removal device of the present invention 1;
FIG. 5 is a perspective view 2 of the aging layer scarification removal device of the present invention;
FIG. 6 is a front view of the vertical scraper lift of the present invention;
FIG. 7 is a sectional view A-A of FIG. 6;
fig. 8 is a schematic view of the transition transportation state of the present invention.
In the figure: 1. a frame, 201, a first walking unit, 202, a second walking unit, 301, a first road surface heating device, 302, a second road surface heating device, 303, a third road surface heating device, 4, an aging layer scarification eliminating device, 4-1, a fixing frame, 4-2, a lifting frame, 4-3, a lifting oil cylinder, 4-4, a connecting rod, 4-5, a scarification spiral conveyor I, 4-6, a sliding oil cylinder I, 4-7, a scarification spiral conveyor II, 4-8, a sliding oil cylinder II, 5, a vertical scraping lifting device, 5-1, a vertical lifting frame, 5-2, a scraping bucket chain, 5-3, a driving shaft, 5-4, a driven shaft, 5-5, a supporting wheel shaft, 5-6, a discharging port, 5-7, a receiving bucket, 5-8 and a slewing bearing, 5-9 parts of a spiral conveyor, 5-10 parts of a left telescopic sleeve, a right telescopic sleeve, 5-11 parts of a left telescopic oil cylinder, 5-12 parts of an up-down lifting sliding component, 5-13 parts of an up-down lifting oil cylinder, 6 parts of a cab, 7 parts of a power system, 8 parts of a road surface heat preservation device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1
In order to solve the problem that the ageing layer of the asphalt pavement influences the regeneration quality, the concrete expression is as follows: the surface layer of the asphalt pavement is aged and deteriorated after long-term sun exposure, wheel rolling and the like; in-situ thermal regeneration technology, a plurality of pavement heating machines are adopted to heat and soften the asphalt pavement, heating modes such as open fire, gas infrared, high-temperature hot air and the like are adopted to cause the aging and scorching of the material with the thickness of 5-10 mm on the surface layer of the asphalt pavement, and once the asphalt material is aged and deteriorated, the performance of the asphalt material is difficult to recover.
As shown in fig. 1 to 7, an embodiment of the present invention provides an asphalt pavement aged layer removing machine, which includes a frame 1, and a first pavement heating device 301, a first traveling unit 201, a second pavement heating device 302, an aged layer scarification removing device 4, a vertical scraping lifting device 5, a second traveling unit 202, a third pavement heating device 303, and a pavement heat preservation device 8, which are connected to the frame and sequentially arranged, where the frame is further provided with a cab 6 and a power system 7, which are sequentially arranged; as shown in fig. 4-5, the aged layer scarification removing device 4 comprises a fixed frame 4-1, a lifting frame 4-2, a lifting oil cylinder 4-3, a connecting rod 4-4, a scarification spiral material conveyor i 4-5, a sliding oil cylinder i 4-6, a scarification spiral material conveyor ii 4-7 and a sliding oil cylinder ii 4-8, wherein the fixed frame 4-1 is fixed on the frame 1, the lifting frame 4-2 is connected with the fixed frame 4-1 through four groups of connecting rods 4-4 to form a parallelogram connecting rod mechanism, and cylinder bodies and piston rods of two groups of left and right symmetrical lifting oil cylinders 4-3 are respectively pinned on the fixed frame 4-1 and the lifting frame 4-2; the raking-loosening spiral material conveyor I4-5 and the raking-loosening spiral material conveyor II 4-7 are hung below the lifting frame 4-2 in tandem, a cylinder body and a piston rod of the sliding oil cylinder I4-6 are respectively pinned on the lifting frame 4-2 and the raking-loosening spiral material conveyor I4-5, and a cylinder body and a piston rod of the sliding oil cylinder II 4-8 are respectively pinned on the lifting frame 4-2 and the raking-loosening spiral material conveyor II 4-7. The invention adopts a novel structure of a bidirectional sliding oil cylinder and a C-shaped slideway, realizes the extension and the folding of the raking loosening spiral conveyor, and realizes the width-variable operation along with the change of the lane width.
In order to realize continuous and uninterrupted elimination of the aged layer of the asphalt pavement, the vertical scraping and lifting device 5 adopts a vertical scraping and lifting and rotary material conveying process, so that the lateral continuous and uninterrupted conveying of the old asphalt mixture is realized, and the operation efficiency is improved. As shown in fig. 6-7, the vertical scraping and lifting device 5 comprises a vertical lifting frame 5-1, a scraping bucket chain 5-2, a driving shaft 5-3, a driven shaft 5-4, a riding wheel shaft 5-5, a discharge port 5-6, a receiving bucket 5-7, a slewing bearing 5-8, a spiral conveyor 5-9, a left telescopic cylinder 5-10, a right telescopic cylinder 5-11, a left telescopic cylinder 5-11, an up-down lifting and sliding component 5-12, and an up-down lifting cylinder 5-13, wherein the outer cylinder of the left telescopic cylinder 5-10 is connected with a frame 1, the inner cylinder is connected with the up-down lifting and sliding component 5-12, the cylinder body and the piston rod of the left telescopic cylinder 5-11 are respectively connected with the frame 1 and the up-down lifting and sliding component 5-12 by pins, the up-down lifting and sliding component 5-12, the cylinder body and the piston rod of the up-down lifting oil cylinder 5-13 are respectively connected with the up-down lifting sliding component 5-12 and the vertical lifting frame 5-1 through pins, under the action of the left-right telescopic oil cylinder 5-11, the up-down lifting sliding component 5-12 and the vertical lifting frame 5-1 can realize left-right telescopic movement, and under the action of the up-down lifting oil cylinder 5-13, the vertical lifting frame 5-1 can realize up-down height adjustment along the up-down lifting sliding component 5-12; the scraper bucket chain 5-2 is arranged in the vertical lifting frame 5-1, the driving shaft 5-3, the supporting wheel shaft 5-5 and the driven shaft 5-4 are arranged from top to bottom and are connected with the scraper bucket chain 5-2, the discharge port 5-6 is positioned at the top of the vertical lifting frame 5-1, the upper part of the spiral conveyor 5-9 is provided with a receiving bucket 5-7 which is positioned below the discharge port 5-6, the spiral conveyor 5-9 is fixed on the vertical lifting frame 5-1 through a slewing bearing 5-8, and the spiral conveyor 5-9 can realize circumferential slewing motion under the action of the slewing bearing 5-8, so that the conveying height and angle can be adjusted.
The third road surface heating device 303 and the road surface heat preservation device 8 are respectively used for heating and preserving heat of the old asphalt road surface from which the aged layer is removed by the aged layer scarification removing device 4.
The lifting oil cylinder and the parallelogram link mechanism are used for realizing the overall height adjustment of the device, and the device has good adaptability to the elimination of aging layers with different depths; the device can slide left and right by means of the bidirectional sliding oil cylinder, and has good adaptability to the removal of aging layers with different road surface widths.
Under the action of a lifting oil cylinder 4-3, a parallelogram connecting rod 4-4 mechanism is used for realizing the up-and-down movement of a lifting frame 4-2, further driving a downstream device to realize height adjustment, and ensuring that a raking loosening spiral conveyor I4-5 and a raking loosening spiral conveyor II 4-7 are always in a horizontal state; under the action of the sliding oil cylinder I4-6, the raking and loosening spiral material conveyor I4-5 can slide left and right; under the action of the sliding oil cylinder II 4-8, the raking and loosening spiral conveyor II 4-7 can realize left-right sliding.
Example 2
Based on the machine for removing the aged layer of the asphalt pavement in the embodiment 1, the invention also provides a method for removing the aged layer of the asphalt pavement, which comprises the following steps:
step S1, the asphalt pavement aging layer removing machine runs on a regeneration lane, and the material conveying vehicle runs on a lateral lane of the regeneration lane;
step S2, heating the old asphalt pavement by the first two groups of pavement heating devices 3 of the asphalt pavement aging layer removing machine; the heating softening depth of the old asphalt pavement is not less than 10mm, and the deep temperature of 10mm is not less than 110 ℃;
step S3, raking and loosening the old asphalt pavement with the depth of 5-10 mm by using rake teeth of a raking and loosening spiral conveyor I4-5 and a raking and loosening spiral conveyor II 4-7 of the aged layer raking and loosening removing device 4, and conveying the scarred and loosened asphalt material on the surface from left to right by means of the spiral conveyors; the raking depth of the old asphalt pavement is adjusted by means of the lifting oil cylinder 4-3, and the raking width of the old asphalt pavement is adjusted by means of the sliding oil cylinder I4-6 and the sliding oil cylinder II 4-8;
and step S4, scraping and lifting the old asphalt mixture by using the scraper bucket chain 5-2 of the vertical scraping and lifting device 5, enabling the old asphalt mixture to fall into the spiral conveyor 5-9 through the discharge port 5-6, the receiving bucket 5-7 and the rotary support 5-8, and realizing the adjustment of the conveying height and angle of the spiral conveyor 5-9 by means of the rotary support 5-8 so as to realize the uninterrupted feeding to the material conveying vehicle, which is shown in the figure 8.
The invention provides an asphalt pavement aged layer removing machine which is suitable for in-situ thermal regeneration popularization and application, adopts a two-stage hot scarification and material conveying spiral process, completes the removing operation of an asphalt pavement aged layer of 5-10 mm at one time, has stepless matching damage, and improves the quality of reclaimed materials; the process of a vertical scraping and lifting device and a rotary material conveying device is adopted, so that the lateral continuous conveying of the old asphalt mixture is realized, and the operation efficiency is improved; the lifting oil cylinder and the parallelogram link mechanism are used for realizing the overall height adjustment of the device, and the device has good adaptability to the elimination of aging layers with different depths; the novel structure of the bidirectional sliding oil cylinder and the C-shaped slideway is adopted, the extension and the folding of the raking loosening spiral conveyor are realized, the mechanism design is ingenious, and the degree of mechanization and automation is high.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an asphalt pavement ageing layer rejecting machine which characterized in that includes:
a frame;
the first walking unit and the second walking unit are connected with the rack;
a first road heating device, a second road heating device, an aging layer scarification removing device, a vertical scraping and lifting device and a second walking unit which are sequentially connected with the frame,
the vertical scraping and lifting device comprises a vertical scraping and lifting unit and a rotary material conveying unit, wherein the vertical scraping and lifting unit is used for scraping and lifting the old asphalt mixture, inputting the old asphalt mixture into the rotary material conveying unit, and feeding the old asphalt mixture to a material conveying vehicle by the rotary material conveying unit.
2. The asphalt pavement aged layer removing machine according to claim 1, characterized in that: the asphalt pavement aging layer removing machine further comprises a third pavement heating device and a pavement heat preservation device, wherein the third pavement heating device is connected with the rack and is close to the second walking unit; and the pavement heat preservation device is connected with the third pavement heating device.
3. The asphalt pavement aged layer removing machine according to claim 1, characterized in that: the aged layer harrowing and removing device comprises a fixing frame, a lifting frame, two groups of symmetrical lifting oil cylinders, a connecting rod, a harrowing feeder I, a sliding oil cylinder I, a harrowing feeder II and a sliding oil cylinder II;
the fixed frame is fixed on the frame;
the lifting frame is connected with the fixed frame through a parallelogram link mechanism;
the cylinder bodies and the piston rods of the two symmetrical groups of lifting oil cylinders are respectively in pin joint with the fixed frame and the lifting frame;
the scarification material conveyor I and the scarification material conveyor II are hung below the lifting frame in a relative mode;
a cylinder body and a piston rod of the sliding oil cylinder I are respectively in pin joint with the lifting frame and the scarification material conveyor I;
and a cylinder body and a piston rod of the sliding oil cylinder II are respectively in pin joint with the lifting frame and the scarification material conveyor II.
4. The asphalt pavement aged layer removing machine according to claim 3, characterized in that: under the action of the lifting oil cylinder, the lifting frame can move up and down by means of the parallelogram link mechanism to complete height adjustment and ensure that the raking material conveyor I and the raking material conveyor II are always in a horizontal state.
5. The asphalt pavement aged layer removing machine according to claim 3, characterized in that: under the action of the sliding oil cylinder I, the scarification material conveyor I can slide back and forth in the horizontal direction.
6. The asphalt pavement aged layer removing machine according to claim 3, characterized in that: under the action of the sliding oil cylinder II, the scarification material conveyor II can slide back and forth in the horizontal direction.
7. The asphalt pavement aged layer removing machine according to claim 3, characterized in that: the scarification material conveyor I and the scarification material conveyor II are both scarification spiral material conveyors.
8. The asphalt pavement aged layer removing machine according to claim 1, characterized in that: the vertical scraping and lifting unit comprises a left telescopic sleeve, a right telescopic sleeve, a left telescopic oil cylinder, a right telescopic oil cylinder, an up-down lifting sliding assembly, an up-down lifting oil cylinder, a vertical lifting frame, a scraping hopper chain, a driving shaft, a driven shaft, a riding wheel shaft and a discharge hole;
the outer cylinder of the left telescopic sleeve and the right telescopic sleeve is connected with the rack, and the inner cylinder is connected with the up-down lifting sliding component;
the cylinder body and the piston rod of the left and right telescopic oil cylinders are respectively in pin joint with the rack and the up-down lifting sliding assembly;
the vertical lifting frame is nested in the up-down lifting sliding assembly;
the cylinder body and the piston rod of the up-down lifting oil cylinder are respectively connected with the up-down lifting sliding assembly and the vertical lifting frame in a pin joint mode;
under the action of the left and right telescopic oil cylinders, the up-down lifting sliding assembly and the vertical lifting frame can realize left and right telescopic movement;
under the action of the up-down lifting oil cylinder, the vertical lifting frame can realize up-down height adjustment along the up-down lifting sliding component;
the scraper bucket chain is arranged in the vertical lifting frame;
the driving shaft, the riding wheel shaft and the driven shaft are arranged from top to bottom and are connected with the scraper bucket chain;
the discharge port is positioned at the top of the vertical lifting frame;
the rotary material conveying unit comprises a receiving hopper, a rotary support and a spiral material conveyor;
the spiral feeder is characterized in that the upper part of the spiral feeder is provided with a receiving hopper which is positioned below the discharge port, the spiral feeder is fixed on the vertical lifting frame through a slewing bearing, and the spiral feeder can realize circumferential slewing motion under the action of the slewing bearing, so that the feeding height and angle can be adjusted.
9. The asphalt pavement aged layer removing machine according to claim 1, characterized in that: the frame is also provided with a cab and a power system.
10. A construction method of the asphalt pavement aged layer remover as claimed in any one of claims 1-9, characterized by comprising:
enabling the asphalt pavement aging layer removing machine to run on a regeneration lane, and enabling the material transporting vehicle to run on a lateral lane of the regeneration lane; heating an old asphalt pavement by using a first pavement heating device and a second pavement heating device of an asphalt pavement aging layer removing machine, wherein the heating softening depth of the old asphalt pavement is more than or equal to 10mm, and the temperature of a 10mm deep layer is more than or equal to 110 ℃;
raking of an old asphalt pavement with the depth of 5-10 mm is completed by rake teeth of a raking spiral conveyor I and a raking spiral conveyor II of an aged layer raking and removing device, and the raked and loosened asphalt material on the surface is conveyed from left to right by means of the spiral conveyors; the method comprises the following steps of adjusting the scarification depth of the old asphalt pavement by means of a lifting oil cylinder, and adjusting the scarification width of the old asphalt pavement by means of a sliding oil cylinder I and a sliding oil cylinder II;
the old asphalt mixture is scraped and lifted by a scraper bucket chain of the vertical scraping and lifting device, falls into the spiral conveyor through a discharge port, a receiving bucket and a slewing bearing, and the conveying height and angle of the spiral conveyor are adjusted by the slewing bearing, so that the material is uninterruptedly supplied to the material transporting vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110308645.1A CN112942044A (en) | 2021-03-23 | 2021-03-23 | Asphalt pavement aged layer removing machine and construction method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110308645.1A CN112942044A (en) | 2021-03-23 | 2021-03-23 | Asphalt pavement aged layer removing machine and construction method thereof |
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CN112942044A true CN112942044A (en) | 2021-06-11 |
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CN202110308645.1A Pending CN112942044A (en) | 2021-03-23 | 2021-03-23 | Asphalt pavement aged layer removing machine and construction method thereof |
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2021
- 2021-03-23 CN CN202110308645.1A patent/CN112942044A/en active Pending
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