CN113605202A - Aging layer removing device, vehicle and asphalt pavement aging layer removing method - Google Patents
Aging layer removing device, vehicle and asphalt pavement aging layer removing method Download PDFInfo
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- CN113605202A CN113605202A CN202110857087.4A CN202110857087A CN113605202A CN 113605202 A CN113605202 A CN 113605202A CN 202110857087 A CN202110857087 A CN 202110857087A CN 113605202 A CN113605202 A CN 113605202A
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- layer removing
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- 239000010426 asphalt Substances 0.000 title claims abstract description 53
- 230000032683 aging Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 96
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 51
- 238000010586 diagram Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036561 sun exposure Effects 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E01C23/124—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 moved rectilinearly, e.g. road-breaker apparatus with reciprocating tools, with drop-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
- E01C23/12—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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses an aged layer removing device, a vehicle and an asphalt pavement aged layer removing method, wherein the device is integrally combined by pavement scarification, spiral conveying and a circular arc scraper, so that the removing operation of an aged layer of an asphalt pavement with the thickness of 5-10 mm can be completed at one time, the grading damage is realized in a stepless manner, and the quality of reclaimed materials is improved; the harrowing device adopts a structure form of articulated harrowing tooth seats, staggered harrowing teeth and spring buffering, so that the harrowing teeth are ensured to be always in contact with the ground, and the phenomena that pits on the road surface cannot be harrowed loose and projections on the road surface obstruct the harrowing teeth to move forward and even be damaged are avoided; the material conveying device adopts the arc spiral shell and the arc scraper, so that the distance between the spiral blade and the spiral shell is reduced, the asphalt mixture is effectively prevented from being adhered to the inner wall of the spiral shell, and the maintenance performance is improved; through addding defeated material extension pipe, increase ageing layer material and to side direction lane discharge distance, effectively solve the problem that side direction lane driving wheel rolled.
Description
Technical Field
The invention relates to an aged layer removing device, a vehicle and an asphalt pavement aged layer removing method, which are particularly suitable for removing an asphalt pavement aged layer and belong to the technical field of road maintenance.
Background
In a construction site of road maintenance, the surface layer of the asphalt pavement is aged and deteriorated after long-term sun exposure, wheel rolling and the like, and the regeneration quality of the aged layer of the asphalt pavement is influenced. A common in-situ heat regeneration process adopts a plurality of pavement heating machines to heat and soften an 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 equipment for removing the aged layer of the asphalt pavement is not seen in the market at present.
In the 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 4 m width regeneration lane can not be finished at one time, the time and the cost are wasted, and the requirement of modernized maintenance of asphalt pavement can not be well met.
The appearance of the spiral shell of the aging layer removing equipment commonly used at present is square, and asphalt mixture is easy to block and adhere to the inner wall of the spiral shell during spiral material conveying, so that the problems of difficult material cleaning and incomplete material cleaning exist. The rake teeth fixed height of the equipment for eliminating the aging layer can not be self-adaptive to the change of the road surface height, can not always be in contact with the road surface, can not be raked loose when pits appear on the road surface, and is easy to cause mechanical damage of the rake teeth because the rake teeth do not buffer when the road surface is raised. Meanwhile, the existing ageing layer removing equipment can only realize that the lateral conveying distance of the ageing layer material is 200mm outside the regeneration lane, the conveying distance is smaller, the rolling of the driving wheels of the lateral lane is easy to generate, and the working condition adaptability is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an aging layer removing device, a vehicle and an asphalt pavement aging layer removing method, and overcomes the defects of in-situ heat regeneration construction.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides an aging layer removing device, comprising an upstream device and a downstream device,
the upstream device comprises a rotary frame, a rotary oil cylinder, a connecting rod, a lifting frame and a lifting oil cylinder;
the downstream device comprises a front scarification device, a front material conveying device, a rear scarification device, a rear material conveying device, a front sliding oil cylinder, a rear sliding oil cylinder and a depth leveling scale;
the front material conveying device and the rear material conveying device are movably connected below the lifting frame, and the front scarification device and the rear scarification device are respectively fixed in front of the front material conveying device and the rear material conveying device;
the cylinder body and the piston rod of the front sliding oil cylinder are respectively pinned on the lifting frame and the front material conveying device, and the cylinder body and the piston rod of the rear sliding oil cylinder are respectively pinned on the lifting frame and the rear material conveying device, so that the front scarification device, the front material conveying device, the rear scarification device and the rear material conveying device slide left and right along the sliding chute;
the piston rod of the rotary oil cylinder is in pin joint with the rotary frame, the lifting frame is connected with the rotary frame through a connecting rod, the cylinder body of the lifting oil cylinder is in pin joint with the rotary frame, and the piston rod of the lifting oil cylinder is in pin joint with the lifting frame to achieve up-and-down movement of a downstream device.
With reference to the first aspect, the rear feeding device further comprises a feeding extension pipe, wherein the feeding extension pipe is connected to one end of the rear feeding device through a lock pin and can be turned over relative to the rear feeding device.
Furthermore, the left and right sliding stroke of the front scarification device and the front material conveying device along the sliding groove is not less than 600mm, and the left and right sliding stroke of the rear scarification device and the rear material conveying device along the sliding groove is not less than 1100 mm.
Furthermore, the device also comprises depth leveling rulers, wherein at least two groups of depth leveling rulers are arranged and fixed on one side or two sides of the front harrowing device and the rear harrowing device.
Further, the degree of depth scale of making level includes fixed sleeve and the telescope tube that has upper and lower guiding hole, fixed sleeve cover is located on the telescope tube, the scale is installed to telescope tube's terminal surface, the movable mounting guide bar in telescope tube's the upper and lower guiding hole, guide bar upper portion installation pointer, lower part installation universal castor. The universal caster bearing surface, the guide rod realize up-and-down motion along the telescopic upper and lower guiding hole, and then drive the pointer up-and-down motion, realize the real-time instruction of machine scarification rejection operation degree of depth.
Further, the front material conveying device comprises a circular arc-shaped front spiral shell, a front material conveying driving device, a front material conveying spiral and a front circular arc scraper, a sliding groove combination is welded on the back of the bottom of the lifting frame,
the front arc scraper is fixed at the rear of the arc-shaped front spiral shell, a front sliding rail is arranged at the top of the arc-shaped front spiral shell, the front material conveying device is embedded in the sliding groove combination through the front sliding rail, and the rear material conveying device and the front material conveying device are identical in structure and embedded in the sliding groove combination.
Furthermore, the circumferential distance between the front conveying screw and the arc-shaped front spiral shell and between the front conveying screw and the front arc scraper is not more than 5mm, so that the asphalt mixture is prevented from being adhered to the inner wall of the spiral shell.
Further, the front scarification device comprises a front scarification beam, a plurality of groups of rake tooth fixing seats and springs,
the front scarification beam is fixed at the front end of the front conveying spiral, a plurality of groups of rake tooth fixing seats are connected to the front scarification beam through pin shafts, staggered rake teeth are arranged on each group of rake tooth fixing seats, and a plurality of groups of springs are tensioned between the front scarification beam and the rake tooth fixing seats through tensioning bolts;
the rear scarification device and the front scarification device have the same structure and are fixed at the front end of the rear material conveying device.
In a second aspect, the present invention provides a vehicle including the aging layer removing apparatus as defined in any one of the above.
With reference to the second aspect, further, the vehicle further includes a frame, a traveling system under the frame, at least three sets of road heating walls and a power system,
one group of pavement heating walls is hinged with the front part of the rack through a lifting mechanism and is positioned at the front end of the vehicle, and the other groups of pavement heating walls are connected with the rack through a lifting mechanism and are positioned in the middle of the vehicle;
the aging layer removing device is hinged with the rack and is positioned at the tail end of the vehicle; the frame is hinged with the cylinder body of the rotary oil cylinder, so that the downstream device can rotate left and right.
In a third aspect, the invention provides a method for removing an aged asphalt pavement layer of a vehicle, which comprises the following steps:
the vehicle runs on a regeneration lane, and the old asphalt pavement is heated by utilizing the pavement heating wall;
controlling rake teeth of a front rake loosening device and a rear rake loosening device of the aged layer removing device, and raking and loosening the old asphalt pavement to a depth of 5-10 mm;
the raked and loosened asphalt material on the surface is conveyed to a lateral lane at least 1000mm away through the helical blades and scrapers of the front material conveying device and the rear material conveying device.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an aged layer removing device, a vehicle and an asphalt pavement aged layer removing method, which are suitable for being popularized and applied in hot in-place recycling, and the method adopts a process combining road surface scarification, spiral conveying and circular scraper, can complete removing operation of an asphalt pavement aged layer of 5-10 mm at one time, has no grading damage, and improves the quality of recycled materials;
the front and rear double-row raking devices adopt a structural form of raking tooth seat hinging, staggered raking teeth and spring buffering, so that the raking teeth are ensured to be always contacted with the ground, and the phenomena that pits on the road surface cannot be raked loose and the raking teeth are hindered by the road surface bulges to move forwards and even be damaged are avoided;
the front and rear double-row material conveying devices adopt the arc spiral shell and the arc scraper, so that the distance between the spiral blade and the spiral shell is reduced, the asphalt mixture is effectively prevented from being adhered to the inner wall of the spiral shell, and the maintenance performance is improved;
conveying the scarified asphalt material on the surface to a lateral lane by means of helical blades and scrapers of front and rear conveying devices, and increasing the discharging distance of the aged material to the lateral lane by at least 1000mm by additionally arranging a conveying extension pipe, thereby effectively solving the rolling problem of the travelling wheels of the lateral lane;
the device has the advantages that the regulation of the scarification depth of the old asphalt pavement is realized by means of the lifting oil cylinder and the connecting rod, the regulation of the scarification width of the pavement is realized by means of the front sliding oil cylinder and the rear sliding oil cylinder, the whole height regulation of the device is realized by means of the lifting oil cylinder and the connecting rod mechanism, and the device has good adaptability to the elimination of aging layers with different depths;
the extension and folding of the scarification device and the conveying device are realized by adopting a bidirectional sliding oil cylinder and a C-shaped slideway structure, the left-right angle rotation of the aging layer removing device is realized by means of a rotary oil cylinder, and the device has good width-variable operation, bend construction operation and travelling transportation adaptability.
Drawings
FIG. 1 is a front view of an aging layer rejection vehicle provided by an embodiment of the present invention;
FIG. 2 is a top view of an aging layer rejection vehicle provided by an embodiment of the present invention;
FIG. 3 is a schematic front perspective view of a vehicle with aging layer elimination according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a rear perspective view of a vehicle with an aging layer removed according to an embodiment of the present invention;
fig. 5 is a schematic rear perspective view of an aging layer removing apparatus according to an embodiment of the present invention in an extended state;
fig. 6 is a schematic front perspective view of an aging layer removing apparatus according to an embodiment of the present invention in an extended state;
fig. 7 is a schematic perspective view of a three-dimensional structure of an aging layer removing device according to an embodiment of the present invention in a folded state;
FIG. 8 is a schematic structural diagram of a lifting frame according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a front scarification device provided by an embodiment of the invention;
FIG. 10 is a schematic structural view of a front feeding device according to an embodiment of the present invention;
fig. 11 is a schematic structural view of a rear scarification device provided by the embodiment of the invention;
FIG. 12 is a schematic structural view of a rear feeding device according to an embodiment of the present invention;
FIG. 13 is a schematic structural diagram of a depth leveling scale provided by an embodiment of the present invention;
in the figure: 1. the device comprises a rack, 2, a traveling system, 3, a pavement heating wall, 4, a turning and lifting mechanism, 5, a lifting mechanism, 6, an aging layer removing device, 6-1, a revolving frame, 6-2, a revolving oil cylinder, 6-3, a connecting rod, 6-4, a lifting frame, 6-4-1, a C-shaped chute, 6-4-2, a C-shaped wear-resistant sliding block, 6-5, a lifting oil cylinder, 6-6, a front raking and loosening device, 6-6-1, a front raking and loosening beam, 6-6-2, a raking tooth fixing seat, 6-6-3, a pin shaft, 6-6-4, raking teeth, 6-6-5, a spring, 6-6-6, a tensioning bolt, 6-7, a front material conveying device, 6-7-1, a front spiral shell, 6-7-2, A front material conveying driving device 6-7-3, a front material conveying screw 6-7-4, a front arc scraper 6-7-5, a front sliding rail 6-8, a rear raking device 6-8-1, a rear raking beam 6-9, a rear material conveying device 6-9-1, a rear screw shell 6-9-2, a rear material conveying driving device 6-9-3, a rear material conveying screw 6-9-4, a rear arc scraper 6-9-5, a rear sliding rail 6-10, a front sliding oil cylinder 6-11, a rear sliding oil cylinder 6-12, a material conveying extension pipe 6-13, a lock 6-14, a depth leveling scale 6-14-1, a fixed sleeve 6-14-2 and a telescopic sleeve, 6-14-3 parts of a staff gauge, 6-14-4 parts of a guide rod, 6-14-5 parts of a pointer, 6-14-6 parts of a universal caster, 7 parts of a cab, 8 parts of a fuel tank, 9 parts of a power system.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The problem that the asphalt pavement aging layer influences the regeneration quality is specifically shown as follows: the surface layer of the asphalt pavement is aged and deteriorated by 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 surface layer material of the asphalt pavement, and once the asphalt material is aged and deteriorated, the performance of the asphalt material is difficult to recover.
The first embodiment is as follows:
fig. 1 and 2 are a front view and a top view of an aging layer removing vehicle according to an embodiment of the present invention, and fig. 3 and 4 are a front perspective view and a rear perspective view of an aging layer removing vehicle according to an embodiment of the present invention. An aging layer removing vehicle comprises a rack 1, a traveling system 2, a pavement heating wall 3, a lifting mechanism 4, a lifting mechanism 5, an aging layer removing device 6, a cab 7, a fuel tank 8 and a power system 9.
The lower part of a frame 1 is used for bearing a traveling system 2, the foremost part above the frame 1 is provided with a cab 7, the rear part of the cab 7 is respectively provided with a fuel tank 8 and a power system 9, at least three groups of pavement heating walls 3 are arranged, one group of pavement heating walls 3 is positioned at the foremost end of the machine and is hinged with the front part of the frame 1 through a lifting mechanism 4, and the other two groups of pavement heating walls 3 are positioned between a front axle and a rear axle of the traveling system 2 and are connected with the frame 1 through a lifting mechanism 5; the aging layer removing device 6 is positioned at the tail end of the machine and is hinged with the frame 1.
Example two:
fig. 5 is a schematic diagram showing a rear-view three-dimensional structure of an aging layer removing device in an extended operation state according to an embodiment of the present invention, fig. 6 is a schematic diagram showing a front-view three-dimensional structure of the aging layer removing device in an extended operation state, and fig. 7 is a schematic diagram showing a three-dimensional structure of the aging layer removing device in a collapsed state. The aging layer removing device 6 comprises a rotary frame 6-1, a rotary oil cylinder 6-2, a connecting rod 6-3, a lifting frame 6-4, a lifting oil cylinder 6-5, a front scarification device 6-6, a front material conveying device 6-7, a rear scarification device 6-8, a rear material conveying device 6-9, a front sliding oil cylinder 6-10, a rear sliding oil cylinder 6-11, a material conveying extension pipe 6-12, a lock 6-13 and a depth leveling scale 6-14.
The revolving frame 6-1 is hinged with the frame 1, the two groups of revolving cylinders 6-2 are arranged symmetrically left and right, the cylinder body and the piston rod of the revolving frame are respectively pinned on the frame 1 and the revolving frame 6-1, and under the action of the two groups of revolving cylinders 6-2, the revolving frame 6-1 can rotate around the hinged center at 15 degrees left and right, so that a downstream device is driven to realize 15-degree revolving operation at left and right degrees.
The lifting frame 6-4 is connected with the rotary frame 6-1 through four groups of connecting rods 6-3 to form a parallelogram connecting rod mechanism, two groups of lifting oil cylinders 6-5 are arranged in bilateral symmetry, cylinder bodies and piston rods of the lifting oil cylinders are respectively pinned on the rotary frame 6-1 and the lifting frame 6-4, under the action of the two groups of lifting oil cylinders 6-5, the lifting frame 6-4 can be moved up and down by means of the parallelogram connecting rod 6-3 mechanism, further a downstream device is driven to realize height adjustment, and the front scarification device 6-6, the front material conveying device 6-7, the rear scarification device 6-8 and the rear material conveying device 6-9 are ensured to be in a horizontal state all the time.
The front material conveying device 6-7 and the rear material conveying device 6-7 are hung below the lifting frame 6-4 in tandem, and the front scarification device 6-6 and the rear scarification device 6-8 are respectively fixed in front of the front material conveying device 6-7 and the rear material conveying device 6-9 in tandem; the cylinder body and the piston rod of the front sliding oil cylinder 6-10 are respectively pinned on the lifting frame 6-4 and the front material conveying device 6-7, under the action of the front sliding oil cylinder 6-10, the front scarification device 6-6 and the front material conveying device 6-7 can slide left and right along the sliding chute, and the sliding stroke is not less than 600 mm.
The cylinder body and the piston rod of the rear sliding oil cylinder 6-11 are respectively pinned on the lifting frame 6-4 and the rear material conveying device 6-9, the rear raking device 6-8 and the rear material conveying device 6-9 can slide left and right along the sliding chute under the action of the rear sliding oil cylinder 6-11, and the sliding stroke is not less than 1100 mm.
The material conveying extension pipe 6-12 is pinned at the rightmost end of the rear material conveying device 6-9 and is fixed through a lock 6-13, and the material conveying extension pipe 6-12 can be turned over by 180 degrees relative to the rear material conveying device 6-9.
One embodiment is as follows: two groups of depth leveling rulers 6-14 are respectively fixed on the left side of the front scarification device 6-6 and the right side of the rear scarification device 6-8.
In another embodiment: two groups of depth leveling rulers 6-14 are respectively fixed on the right side of the front scarification device 6-6 and the left side of the rear scarification device 6-8.
As shown in fig. 8, which is a schematic structural diagram of a lifting frame according to an embodiment of the present invention, a plurality of groups of C-shaped sliding grooves 6-4-1 are welded on the back of a lower bottom plate of the lifting frame 6-4, the C-shaped sliding grooves 6-4-1 are welded by adopting a C-port opposite welding manner to form a front and rear row of independent sliding groove combinations, and C-shaped wear resistant sliding blocks 6-4-2 are embedded in the C-shaped sliding grooves 6-4-1.
Referring to fig. 10, which is a schematic structural view of a front feed device according to an embodiment of the present invention, the front feed device 6-7 includes a circular front spiral casing 6-7-1, a front feed driving device 6-7-2, a front feed spiral 6-7-3, and a front circular scraper 6-7-4.
The top of the arc-shaped front spiral shell 6-7-1 is provided with a front sliding rail 6-7-5, the front material conveying device 6-7 is nested in a front row C-shaped sliding groove at the bottom of the lifting frame 6-4 through the front sliding rail 6-7-5, a front arc scraper 6-7-4 is fixed behind the arc-shaped front spiral shell 6-7-1 through bolts, and the circumferential distance between the front material conveying spiral 6-7-3 and the arc-shaped front spiral shell 6-7-1 as well as the circumferential distance between the front arc scraper 6-7-4 and the arc-shaped front spiral shell 6-7-1 are not more than 5 mm.
As shown in fig. 12, which is a schematic structural diagram of the rear feeding device according to the embodiment of the present invention, the rear feeding device 6-9 includes a circular arc rear spiral casing 6-9-1, a rear feeding driving device 6-9-2, a rear feeding spiral 6-9-3, and a rear circular arc scraper 6-9-4.
The top of the circular arc rear spiral shell 6-9-1 is provided with a rear sliding rail 6-9-5, the rear material conveying device 6-9 is nested in a rear row C-shaped sliding groove at the bottom of the lifting frame 6-4 through the rear sliding rail 6-9-5, a rear circular arc scraper 6-9-4 is fixed behind the circular arc rear spiral shell 6-9-1 through a bolt, the circumferential distance between the rear material conveying spiral 6-9-3 and the circular arc rear spiral shell 6-9-1 and the rear circular arc scraper 6-9-4 is not more than 5mm, the fact that the asphalt mixture does not adhere to the inner wall surface in the operation process is ensured, the phenomenon that the asphalt mixture is condensed, agglomerated and falls off in the later period is avoided, construction quality is affected, maintenance time after operation is shortened, and time and labor are saved.
As shown in fig. 9, which is a schematic structural diagram of the front raking device according to the embodiment of the invention, the front raking device 6-6 includes a front raking beam 6-6-1, a rake teeth fixing seat 6-6-2, a pin 6-6-3, rake teeth 6-6-4, a spring 6-6-5 and a tension bolt 6-6-6.
The front scarification beam 6-6-1 is fixed at the front end of the front conveying spiral 6-7-3, a plurality of groups of rake tooth fixing seats 6-6-2 are in pin joint with the front scarification beam 6-6-1 through pin shafts 6-6-3 in an array manner, ten groups of rake teeth 6-6-4 are arranged on each group of rake tooth fixing seats 6-6-2, the rake teeth 6-6-3 are arranged in two rows in a staggered manner, the left-right spacing between every two adjacent rake teeth 6-6-4 is not more than 50mm, the front-back spacing is not more than 80mm, a plurality of groups of springs 6-6-5 are positioned between the front scarification beam 6-6-1 and the rake tooth fixing seats 6-6-2 and are tensioned and fixed through tensioning bolts 6-6-6.
As shown in fig. 11, which is a schematic structural diagram of the rear scarification device according to an embodiment of the present invention, the rear scarification device 6-8 includes a rear scarification beam 6-8-1, a rake teeth fixing base 6-6-2, a pin 6-6-3, rake teeth 6-6-4, a spring 6-6-5, and a tension bolt 6-6-6.
The rear scarification beam 6-8-1 is fixed at the front end of the rear conveying spiral 6-9-3, a plurality of groups of rake tooth fixing seats 6-6-2 are in pin joint with the rear scarification beam 6-8-1 through pin shafts 6-6-3 in an array manner, ten groups of rake teeth 6-6-4 are arranged on each group of rake tooth fixing seats 6-6-2, the rake teeth 6-6-3 are arranged in two rows in a staggered manner, the left-right spacing between every two adjacent rake teeth 6-6-4 is not more than 50mm, the front-back spacing is not more than 80mm, a plurality of groups of springs 6-6-5 are positioned between the front scarification beam 6-6-1 and the rake tooth fixing seats 6-6-2 and are tensioned and fixed through tensioning bolts 6-6-6.
As shown in fig. 13, which is a schematic structural diagram of a depth leveling ruler according to an embodiment of the present invention, the depth leveling ruler 6-14 includes a fixed sleeve 6-14-1, a telescopic sleeve 6-14-2 having upper and lower guide holes, a ruler 6-14-3, a guide bar 6-14-4, a pointer 6-14-5, and a caster 6-14-6.
The telescopic sleeve 6-14-2 is nested in the fixed sleeve 6-14-1 and fixed through a jackscrew, the scale 6-14-3 is installed on the end face of the telescopic sleeve 6-14-2 with an upper guide hole and a lower guide hole, the pointer 6-14-5 is installed on the upper portion of the guide rod 6-14-4, the universal caster 6-14-6 and the universal caster 6-14-6 are installed on the lower portion of the guide rod 6-14-4, the guide rod 6-14-4 moves up and down along the upper guide hole and the lower guide hole of the telescopic sleeve 6-14-2, the pointer 6-14-5 is further driven to move up and down, and real-time indication of the scarification removal operation depth of the machine is achieved.
The aging layer removing device 6 is completely extended to have the maximum width of 5000mm, the maximum scarification removing operation width is 4000mm, the folding transportation width is 3000mm, the spiral directions of the front material conveying device 6-7 and the rear material conveying device 6-9 are consistent, the asphalt mixture moves from left to right, and is finally discharged from the material conveying extension pipe 6-12, and the discharge distance of the asphalt materials to the right lane is 1000 mm.
Example three:
the invention also relates to a construction process for removing the vehicle on the aging layer, which comprises the following steps:
the method comprises the following steps that (1) an asphalt pavement aged layer removing vehicle runs on a regeneration lane, and the front three groups of pavement heating walls 3 of an asphalt pavement aged layer removing machine are used for heating an old asphalt pavement; 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 ℃;
raking and loosening the old asphalt pavement with the depth of 5-10 mm are completed by rake teeth of a front raking and loosening device 6-6 and a rear raking and loosening device 6-8 of the aging layer removing device 6, and the raking and loosening depth of the old asphalt pavement is adjusted by means of a lifting oil cylinder 6-5 and a parallelogram connecting rod 6-3;
the raking width of the old asphalt pavement is adjusted by means of the front sliding oil cylinders 6-10 and the rear sliding oil cylinders 6-11, and asphalt materials on the raked rear surface are conveyed to a position beyond 1000mm of a lateral lane from left to right by means of helical blades and scrapers of the front material conveying devices 6-7 and the rear material conveying devices 6-9.
The invention provides an aged layer removing device, a vehicle and an asphalt pavement aged layer removing method, which are suitable for being popularized and applied in hot in-place recycling, and the aged layer removing operation of an asphalt pavement of 5-10 mm is completed at one time by adopting a process combining road surface scarification, spiral conveying and arc scrapers, so that the quality of recycled materials is improved due to stepless matching and damage; the front and rear double-row raking devices adopt a structural form of raking tooth seat hinging, staggered raking teeth and spring buffering, so that the raking teeth are ensured to be always contacted with the ground, and the phenomena that pits on the road surface cannot be raked loose and the raking teeth are hindered by the road surface bulges to move forwards and even be damaged are avoided; the front and rear double-row material conveying devices adopt the arc spiral shell and the arc scraper, so that the distance between the spiral blade and the spiral shell is reduced, the asphalt mixture is effectively prevented from being adhered to the inner wall of the spiral shell, and the maintenance performance is improved; by additionally arranging the material conveying extension pipe, the discharge distance of the aged layer material to the lateral lane is increased to 1000mm by virtue of the thrust of the helical blade and the fluidity of the asphalt mixture, and the problem of rolling of the travelling wheels of the lateral lane is effectively solved; 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.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (11)
1. An aging layer removing device is characterized by comprising an upstream device and a downstream device,
the upstream device comprises a rotary frame (6-1), a rotary oil cylinder (6-2), a connecting rod (6-3), a lifting frame (6-4) and a lifting oil cylinder (6-5);
the downstream device comprises a front scarification device (6-6), a front material conveying device (6-7), a rear scarification device (6-8), a rear material conveying device (6-9), a front sliding oil cylinder (6-10) and a rear sliding oil cylinder (6-11);
the front material conveying device (6-7) and the rear material conveying device (6-9) are movably connected below the lifting frame (6-4), and the front scarification device (6-6) and the rear scarification device (6-8) are respectively fixed in front of the front material conveying device (6-7) and the rear material conveying device (6-9);
the cylinder body and the piston rod of the front sliding oil cylinder (6-10) are respectively pinned on the lifting frame (6-4) and the front material conveying device (6-7), and the cylinder body and the piston rod of the rear sliding oil cylinder (6-11) are respectively pinned on the lifting frame (6-4) and the rear material conveying device (6-9);
the piston rod of the rotary oil cylinder (6-2) is in pin joint with the rotary frame (6-1), the lifting frame (6-4) is connected with the rotary frame (6-1) through the connecting rod (6-3), the cylinder body of the lifting oil cylinder (6-5) is in pin joint with the rotary frame (6-1), and the piston rod of the lifting oil cylinder (6-5) is in pin joint with the lifting frame (6-4).
2. The device for eliminating the aging layer as claimed in claim 1, further comprising a feeding extension pipe (6-12), wherein the feeding extension pipe (6-12) is pinned to one end of the rear feeding device (6-9) by a lock (6-13) and can be turned over with respect to the rear feeding device (6-9).
3. The aging layer removing device as claimed in claim 1, wherein the stroke of the front scarification device (6-6) and the front feeding device (6-7) sliding left and right along the chute is not less than 600mm, and the stroke of the rear scarification device (6-8) and the rear feeding device (6-9) sliding left and right along the chute is not less than 1100 mm.
4. The aging layer removing device according to claim 1, further comprising depth leveling scales (6-14), wherein at least two sets of the depth leveling scales (6-14) are fixed on one side or both sides of the front scarification device (6-6) and the rear scarification device (6-8).
5. The aging layer removing device according to claim 4, wherein the depth leveling ruler (6-14) comprises a fixed sleeve (6-14-1) and a telescopic sleeve (6-14-2) with an upper guide hole and a lower guide hole, the fixed sleeve (6-14-1) is sleeved on the telescopic sleeve (6-14-2), the ruler (6-14-3) is installed on the end surface of the telescopic sleeve (6-14-2), and a guide rod (6-14-4) is movably installed in the upper guide hole and the lower guide hole of the telescopic sleeve (6-14-2); the upper part of the guide rod (6-14-4) is provided with a pointer (6-14-5), and the lower part is provided with a universal caster (6-14-6).
6. The aging layer removing device as claimed in claim 1, wherein the front feeding device (6-7) comprises a circular arc front spiral shell (6-7-1), a front feeding driving device (6-7-2), a front feeding spiral (6-7-3) and a front circular arc scraper (6-7-4), the back of the bottom of the lifting frame (6-4) is welded with a chute combination,
the front arc scraper (6-7-4) is fixed behind the arc-shaped front spiral shell (6-7-1), a front sliding rail (6-7-5) is arranged at the top of the arc-shaped front spiral shell (6-7-1), the front material conveying device (6-7) is nested in the sliding groove assembly through the front sliding rail (6-7-5), and the rear material conveying device (6-9) and the front material conveying device (6-7) are identical in structure and are nested in the sliding groove assembly.
7. The aging layer removing device as claimed in claim 6, wherein the distance between the front feed screw (6-7-3) and the circular arc front screw shell (6-7-1) and the front circular arc scraper (6-7-4) is not more than 5 mm.
8. The aging layer removing device according to claim 6, wherein the front scarification device (6-6) comprises a front scarification beam (6-6-1), a plurality of groups of rake tooth holders (6-6-2) and springs (6-6-5),
the front scarification beam (6-6-1) is fixed at the front end of the front conveying spiral (6-7-3), a plurality of groups of rake tooth fixing seats (6-6-2) are connected to the front scarification beam (6-6-1) in a pin mode through pin shafts (6-6-3), rake teeth (6-6-4) which are arranged in a staggered mode are installed on each group of rake tooth fixing seats (6-6-2), and a plurality of groups of springs (6-6-5) are arranged between the front scarification beam (6-6-1) and the rake tooth fixing seats (6-6-2) in a tensioning mode through tensioning bolts (6-6-6);
the rear scarification device (6-8) and the front scarification device (6-6) have the same structure and are fixed at the front end of the rear material conveying device (6-9).
9. A vehicle characterized by comprising the aging layer removing apparatus according to any one of claims 1 to 8.
10. Vehicle according to claim 9, characterized in that it further comprises a frame (1), a running system (2) located below the frame (1), at least three sets of road heating walls (3) and a power system (9),
one group of pavement heating walls (3) is hinged with the front part of the rack (1) through a lifting mechanism (4) and is positioned at the front end of the vehicle, and the other groups of pavement heating walls (3) are connected with the rack (1) through a lifting mechanism (5) and are positioned in the middle of the vehicle;
the aging layer removing device (6) is hinged with the rack (1) and is positioned at the tail end of the vehicle; the frame (1) is hinged with a cylinder body of the rotary oil cylinder (6-2).
11. The method for removing the aged asphalt pavement layer of the vehicle as set forth in claim 10, comprising the steps of:
the vehicle runs on a regeneration lane, and the old asphalt pavement is heated by utilizing a pavement heating wall (3);
controlling rake teeth of a front rake-loosening device (6-6) and a rear rake-loosening device (6-8) of the aged layer removing device (6) to rake and loosen the old asphalt pavement with the depth of 5-10 mm;
the pitch material on the rear surface of the scarified material is conveyed to the position outside the lateral lane by at least 1000mm through the helical blades and the scrapers of the front material conveying device (6-7) and the rear material conveying device (6-9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857087.4A CN113605202A (en) | 2021-07-28 | 2021-07-28 | Aging layer removing device, vehicle and asphalt pavement aging layer removing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110857087.4A CN113605202A (en) | 2021-07-28 | 2021-07-28 | Aging layer removing device, vehicle and asphalt pavement aging layer removing method |
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| US20040179895A1 (en) * | 2003-03-11 | 2004-09-16 | Lee William Michael | Cut off and strike off mechanism for a paving machine |
| CN109440599A (en) * | 2018-12-21 | 2019-03-08 | 泰州市鹏程体育设施材料有限公司 | A kind of plastic cement race track laying shock-absorbing type lying device |
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