CN111305029B - Environment-friendly long-life composite asphalt pavement in-place heat regeneration device - Google Patents
Environment-friendly long-life composite asphalt pavement in-place heat regeneration device Download PDFInfo
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- CN111305029B CN111305029B CN202010067884.8A CN202010067884A CN111305029B CN 111305029 B CN111305029 B CN 111305029B CN 202010067884 A CN202010067884 A CN 202010067884A CN 111305029 B CN111305029 B CN 111305029B
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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
- E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
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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
- E01C23/08—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 roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—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 roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention relates to an environment-friendly long-life composite asphalt pavement on-site heat regeneration device, which comprises a vehicle frame and a heating plate connected with the vehicle frame, wherein the heating plate comprises a frame connected with the vehicle frame, a main partition frame for dividing the frame into at least one row of two rows of heating zones is connected in the frame, and a partition frame for dividing the frame into a central heating partition positioned in the center and corner heating partitions positioned at four corners of the central heating zone is connected in the heating zone. The subsequent milling process is facilitated.
Description
Technical Field
The invention belongs to the field of maintenance of environment-friendly long-life composite asphalt pavements, and particularly relates to an in-situ heat regeneration device for an environment-friendly long-life composite asphalt pavement.
Background
Hot in-place recycling of asphalt pavement refers to a process of heating the asphalt pavement to melt the asphalt pavement, loosening the asphalt pavement by using a spiral milling device or a scarification device, and finally leveling, compacting and recycling the asphalt pavement. The asphalt pavement hot in-place recycling vehicle is construction equipment for asphalt pavement hot in-place recycling, and when hot repair or hot in-place recycling construction is carried out on an asphalt pavement, asphalt mixture on the surface layer of the asphalt pavement needs to be heated to be melted, and then the asphalt mixture is scarified, leveled and compacted to repair the pavement. The heating plate is arranged below the frame and can lift up and down, the heating plate is close to the pavement during working, the surface layer of the asphalt pavement is heated along with the slow running of a vehicle, and after the asphalt pavement is heated and melted, the scarification equipment at the rear part scarifies the asphalt pavement and paves the asphalt pavement. And compacting the pavement by using road pressing equipment to achieve the aim of repairing the pavement.
In chinese patent CN101255675B, an asphalt pavement hot in-place recycling vehicle is disclosed, which heats an asphalt pavement in a multiple heating and heat preservation manner, and in the process of repeated heating and heat preservation, the heat is gradually and uniformly dispersed and permeated, so that not only can the asphalt mixture of the asphalt pavement with a certain thickness be melted, but also the surface asphalt can be prevented from being scorched, and the original performance of the heated asphalt mixture can be kept unchanged. Adopt foldable hot plate and heated board, can increase the width of heating surface, can not make the heating vehicle super wide again, make things convenient for the vehicle to shift, however, this bituminous paving hot in-place recycling car is inconvenient in the in-process of using and effectively heats the hole position on the road surface to influenced road regeneration process, reduced road regeneration rate.
Disclosure of Invention
The invention aims to provide an environment-friendly long-life composite asphalt pavement on-site thermal regeneration device, which comprises a vehicle frame and a heating plate connected with the vehicle frame, wherein the heating plate comprises a frame connected with the vehicle frame, a main partition frame for dividing the frame into at least one row of two rows of heating zones is connected in the frame, a partition frame for dividing the heating zone into a central heating partition at the center and corner heating partitions at four corners of the central heating zone is connected in the heating zone, a plate-type heater capable of floating up and down is connected in a sliding manner in the partition frame, the top of the heater is connected with a working cylinder capable of outputting linear lifting power and a locking mechanism capable of locking the position of the heater on the partition frame, the locking mechanism comprises a box body connected with the partition frame, a partition plate positioned in the middle is arranged in the box body, a through hole is arranged on the partition plate, a pull rod positioned in the center and a bag body surrounding the pull rod are arranged in the through hole, the bag body is filled with magnetorheological fluid which can be switched under the control of an electromagnetic coil in the box body, the bag body is also provided with an upper part blocked above the partition plate in the box body and a lower part blocked below the partition plate in the box body, a first spring is propped between the lower part and the box body, the top of the pull rod extends out of the upper part of the bag body, and the extending part of the pull rod is provided with an overflow body blocked above the upper part of the bag body.
Optionally, two groups of working cylinders are symmetrically distributed on the left side and the right side of the heater, and the locking mechanism is located between the two groups of working cylinders.
Optionally, the number of the locking mechanisms is at least two, and the boxes of the locking mechanisms are connected with each other to form an integrated box, and the integrated box is located in the center of the two groups of working cylinders.
Optionally, the part of the box above the partition is wider than the part below the partition.
Optionally, the bottom of the heating plate is hinged to the front end of the frame, and a pitching driving mechanism for driving the heating plate to pitch and swing is connected between the top of the heating plate and the frame.
Optionally, the pitching driving mechanism comprises a first sliding block positioned on the back of the heating plate, a first hydraulic cylinder hinged on the first sliding block, a second sliding block positioned on the frame, and a second hydraulic cylinder and a third hydraulic cylinder hinged on the second sliding block;
the first sliding block is connected with a first sliding rail positioned at the top of the back of the heating plate in an up-and-down sliding manner, an upper stop block positioned at the upper limit position of the first sliding block and a lower stop block positioned at the lower limit position of the first sliding block are respectively arranged at two ends of the first sliding rail, and a second spring is connected between the upper stop block and the first sliding block in a pushing manner;
the second sliding block is connected with a second sliding rail positioned on the frame in a sliding manner along the front-back direction, and a front stop block positioned at the front limit position of the second sliding block is arranged in front of the second sliding rail;
the other end of the first hydraulic cylinder is hinged with one end of the second hydraulic cylinder through a rotary limiting mechanism, the rotary limiting mechanism comprises a first rotary table connected with the first hydraulic cylinder and a second rotary table connected with the second hydraulic cylinder, the first rotary table and the second rotary table can be relatively rotatably connected to the same rotating shaft, an opening with a central angle of 10-25 degrees is formed in the edge of the first rotary table, and a limiting shifting tooth which extends into the opening and can relatively swing in the opening is convexly arranged on the edge of the second rotary table;
one end of the second hydraulic cylinder is connected to the second turntable, and the other end of the second hydraulic cylinder is hinged to the top of the second sliding block;
one end of the third hydraulic cylinder is hinged to the rear part of the second sliding block, and the other end of the third hydraulic cylinder is hinged to the frame.
Optionally, the frame is further connected with a milling mechanism located in front of and/or behind the heating plate, the milling mechanism comprises a bell-shaped shell and a milling rotor rotatably mounted in the bell-shaped shell around a left-right extending axis, the top of the shell is connected with a front hydraulic cylinder located in the front portion and a rear hydraulic cylinder located in the rear portion, the upper ends of the front hydraulic cylinder and the rear hydraulic cylinder are hinged to the frame, and a parallel link mechanism located at the bottom of the frame is formed with the shell when the telescopic amount of the front hydraulic cylinder and the telescopic amount of the rear hydraulic cylinder are equal in length.
Optionally, the front side and/or the rear side of the housing are hinged with a guard plate for shielding the milling rotor, the front side of the guard plate faces the milling rotor, the back side of the guard plate is hinged with a pitching cylinder for adjusting a pitching angle, the other end of the pitching cylinder is hinged with the housing, and the pitching cylinder and the guard plate form a crank slider mechanism on the housing.
Optionally, a rotating shaft of the milling rotor is connected with a swing arm extending forwards and backwards, the rear end of the swing arm is hinged to the frame, the front end of the swing arm is connected with a stop lever extending leftwards and rightwards, the stop lever is connected with a U-shaped anti-falling frame fixed at the bottom of the frame in a penetrating mode, and a working hydraulic cylinder located in front of the milling rotor is hinged between the stop lever and the frame.
The invention has the following beneficial effects:
1. according to the environment-friendly long-life composite asphalt pavement in-situ heat regeneration device, the heater, the working cylinder, the pull rod and the bag body are arranged, so that the heater can be controlled to lift and fall according to the pavement condition in the use process, the pavement hollow part is heated and softened, the heating area is divided into the central heating area and the four corner heating areas, the hollow conditions of different pavements are greatly adapted, the purpose of heating and softening the complex hollow pavement is achieved, the subsequent milling process is facilitated, the placing-down function during working and the placing-up function during non-working are matched with the pitching driving mechanism, and the practicability of the environment-friendly long-life composite asphalt pavement in-situ heat regeneration device is further improved.
2. The milling rotor, the guard plate and the pitching cylinder are arranged in a matched mode, so that sand and stone splashing caused by overlarge milling force is prevented in the using process, the noise is reduced due to the fact that the sand and stone are blocked by the guard plate arranged inside the milling rotor, the guard plate and the pitching cylinder protect the shell, and the service life of the whole milling device is greatly prolonged.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a schematic structural view of a hot in-place recycling vehicle according to the present invention;
FIG. 2 is a schematic view of a heating plate according to the present invention;
FIG. 3 is a schematic view of the first and second turntables of the present invention;
FIG. 4 is a schematic view of the heater configuration of the present invention;
fig. 5 is a schematic sectional view of the heater.
In the figure: 1. a frame; 2. heating plates; 3. a main partition frame; 4. partitioning and separating racks; 5. a heater; 6. a working cylinder; 7. a box body; 8. a partition plate; 9. a pull rod; 10. a capsule body; 11. an electromagnetic coil; 12. a first spring; 13. a cap body; 14. a first slider; 15. a first hydraulic cylinder; 16. a second slider; 17. a first slide rail; 18. a second spring; 19. a second slide rail; 20. a second hydraulic cylinder; 21. a first turntable; 22. a second turntable; 23. limiting shifting teeth; 24. a third hydraulic cylinder; 25. a housing; 26. milling a rotor; 27. a front hydraulic cylinder; 28. a rear hydraulic cylinder; 29. a guard plate; 30. a pitching cylinder; 31. swinging arms; 32. a stop lever; 33. the anti-falling frame; 34. a working hydraulic cylinder; 35. and (4) carrying out hot in-place recycling.
Detailed Description
In order to make the technical purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are further described below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: the environment-friendly long-life composite asphalt pavement in-situ heat regeneration device comprises a vehicle frame 1 and a heating plate 2 connected with the vehicle frame, wherein the bottom of the heating plate 2 is hinged to the front end of the vehicle frame 1, a pitching driving mechanism for driving the heating plate 2 to pitch and swing is connected between the top and the vehicle frame, the pitching driving mechanism comprises a first sliding block 14 positioned on the back surface of the heating plate 2, a first hydraulic cylinder 15 hinged on the first sliding block 14, a second sliding block 16 positioned on the vehicle frame 1 and second and third hydraulic cylinders hinged on the second sliding block 16, the first sliding block 14 is vertically and slidably connected with a first sliding rail 17 positioned on the top surface of the back surface of the heating plate 2, two ends of the first sliding rail 17 are respectively provided with an upper stop block positioned at the upper limit position of the first sliding block 14 and a lower stop block positioned at the lower limit position of the first sliding block, and a second spring 18 is connected between the upper stop block and the first sliding block 14 in a pushing manner; the second slide block 16 is connected with a second slide rail 19 positioned on the frame 1 in a sliding way along the front-back direction, and a front stop block positioned at the front limit position of the second slide block 16 is arranged in front of the second slide rail 19; the other end of the first hydraulic cylinder 15 is hinged with one end of the second hydraulic cylinder 20 through a rotary limiting mechanism, the rotary limiting mechanism comprises a first rotary table 21 connected with the first hydraulic cylinder 15 and a second rotary table 22 connected with the second hydraulic cylinder 20, the first rotary table 21 and the second rotary table 22 can be connected on the same rotating shaft in a relatively rotating mode, the edge of the first rotary table 21 is provided with a notch with a central angle of 10-25 degrees, and the edge of the second rotary table 22 is convexly provided with a limiting shifting tooth 23 which extends into the notch and can swing relatively in the notch; the first rotary table 21, the second rotary table 22 and the limiting shifting teeth 23 play a role in limiting while connecting the second hydraulic cylinder and the third hydraulic cylinder, so that the rotating position of the heating plate 2 is fixed, one end of the second hydraulic cylinder 20 is connected to the second rotary table 22, and the other end of the second hydraulic cylinder is hinged to the top of the second sliding block 16; one end of the third hydraulic cylinder 24 is hinged on the rear part of the second sliding block 16, and the other end is hinged on the frame 1;
the heating plate 2 comprises a frame connected with a vehicle frame 1, a main partition frame 3 which divides the frame into at least one row of two rows of heating zones is connected in the frame, a partition frame 4 which divides the frame into a central heating partition at the center and corner heating partitions at four corners of the central heating zone is connected in the heating zone, the partition frame 4 is internally and slidably connected with a plate-type heater 5 which can float up and down, the top of the heater 5 is connected with a working cylinder 6 which can output linear lifting power and a locking mechanism which can lock the position of the heater 5 on the partition frame, the working cylinder 6 is provided with two groups which are symmetrically distributed at the left side and the right side of the heater 5, the locking mechanism is positioned between the two groups of working cylinders 6, the locking mechanism is provided with at least two groups, the box bodies 7 of the locking mechanisms are mutually connected into an integrated box body which is positioned at the central position of the two groups of working cylinders 6, the locking mechanism comprises a box body 7 connected with the partition frame 4, the part of the box body 7 above the clapboard 8 is wider than the part below the clapboard 8, the clapboard 8 positioned in the middle is arranged in the box body 7, a through hole is arranged on the clapboard 8, a pull rod 9 positioned in the center and a bag body 10 surrounding the pull rod 9 are arranged in the through hole in a penetrating way, the bag body 10 is filled with magnetorheological fluid which can be switched under the control of an electromagnetic coil 11 in the box body 7, the bag body 10 also comprises an upper part blocked above the clapboard 8 in the box body 7 and a lower part blocked below the clapboard 8 in the box body 7, a first spring 12 is arranged between the lower part and the box body 7 in a propping way, the top of the pull rod 9 extends out of the upper part of the bag body 10, and the extending part is provided with an ejector 13 blocked above the upper part of the bag body 10.
The frame 1 is also connected with a milling mechanism positioned in front of and/or behind the heating plate 2, the milling mechanism comprises a bell-shaped shell 25 and a milling rotor 26 rotatably arranged in the bell-shaped shell around a left-right extending axis, a rotating shaft of the milling rotor 26 is connected with a swing arm 31 extending forwards and backwards, the rear end of the swing arm 31 is hinged on the frame 1, the front end of the swing arm 31 is connected with a stop lever 32 extending leftwards and rightwards, the stop lever 32 is connected with a U-shaped anti-falling frame 33 fixed at the bottom of the frame 1 in a penetrating manner, a working hydraulic cylinder 34 positioned in front of the milling rotor 26 is hinged between the stop lever 32 and the frame 1, the front side and/or the rear side of the shell 25 are hinged with a guard plate 29 for shielding the milling rotor 26, the guard plate 29 positioned near a cab plays a role in preventing sand from splashing, the guard plate 29 positioned behind plays a role in protecting the shell 25 and reducing noise, the front side of the guard plate 29 faces the milling rotor 26, the back is hinged with a pitching cylinder 30 with the other end hinged on the shell 25 and used for adjusting the pitching angle, the pitching cylinder 30 and the guard plate 29 form a crank slider mechanism on the shell, the top of the shell 21 is connected with a front hydraulic cylinder 27 positioned in the front part and a rear hydraulic cylinder 28 positioned in the rear part, the upper ends of the front hydraulic cylinder 27 and the rear hydraulic cylinder 28 are hinged on the frame 1, and the front hydraulic cylinder 27 and the rear hydraulic cylinder 28 form a parallel link mechanism with the shell 25 at the bottom of the frame 1 when the telescopic amount of the front hydraulic cylinder 27 and the telescopic amount of the rear hydraulic cylinder 28 are equal in length.
When the heating device is used, the in-situ heat regeneration vehicle 35 heats the ground along the advancing direction, the heating plate 2 rotates and lifts through the pitching driving mechanism in the heating process until the heating plate 2 is flush with the ground, the heating plate 2 starts to work, the central heating area and the corner heating area arranged on the heating plate 2 move to corresponding positions, the working cylinder 6 is driven to enable the heater 5 to move up and down, after the heating plate reaches a proper heating position, the electromagnetic coil 11 is charged, the magnetorheological fluid is solidified under the action of a magnetic field, the heater 5 is locked, after the heating is finished, the power supply of the electromagnetic coil 11 is turned off, the magnetorheological fluid is demagnetized to be liquid, the magnetorheological fluid is matched with the first spring 12 to play a role in damping, the working cylinder 6 is driven at the moment to enable the heater 5 to ascend, the heating process is finished, and then when the heating device does not need to work, the first hydraulic cylinder 15, the second hydraulic cylinder 20 and the third hydraulic cylinder 24 are driven to recover the heating plate 2, in the process, the three hydraulic cylinders are all provided with limiting devices, so that the two limit positions of the heating plate 2 are fixed, after the whole heating and softening process is completed, the hot in-place recycling vehicle continues to move forwards, the milling mechanism starts to work, the front hydraulic cylinder 27 and the rear hydraulic cylinder 28 move downwards, the milling rotor 26 is enabled to be in contact with the ground, the milling rotor 26 mills the softened ground, sand is blocked by the guard plate 29 arranged at the front and the rear, the sand is prevented from splashing, the shell 25 is protected, and the service life of the milling mechanism is prolonged.
In conclusion, the environment-friendly long-life composite asphalt pavement in-situ heat regeneration device can control the lifting of the heater 5 according to the pavement condition in the using process through the arrangement of the heater 5, the working cylinder 6, the pull rod 9 and the bag body 10, so that the heating softening of the depression of the pavement is completed, the heating zone is divided into the central heating zone and the four-corner heating zone, the depression conditions of different pavements are greatly adapted, the purpose of heating and softening the complex depression pavement is achieved, the subsequent milling process is convenient, the lowering and non-working retracting functions are performed by matching with the pitching driving mechanism, the practicability of the environment-friendly long-life composite asphalt pavement in-situ heat regeneration device is further improved, and the sand splashing caused by overlarge milling force is prevented in the using process through the matching arrangement of the milling rotor 26, the guard plate 29 and the pitching cylinder 30, and the guard plate 29 arranged inside can reduce noise and protect the shell 25 due to blocking of sand, thereby greatly prolonging the service life of the whole milling device.
Finally, it should be noted that: the above embodiments are merely illustrative and not restrictive of the technical solutions of the present invention, and any equivalent substitutions and modifications or partial substitutions made without departing from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The environment-friendly long-life composite asphalt pavement in-place heat regeneration device comprises a vehicle frame and a heating plate connected with the vehicle frame, and is characterized in that the heating plate comprises a frame connected with the vehicle frame, a main partition frame which divides the frame into at least one row of two rows of heating zones is connected in the frame, a partition frame which divides the frame into a central heating partition positioned in the center and corner heating partitions positioned at four corners of the central heating zone is connected in the heating zone, a plate-type heater capable of floating up and down is connected in the partition frame in a sliding manner, the top of the heater is connected with a working cylinder capable of outputting linear lifting power and a locking mechanism capable of locking the position of the heater on the partition frame, the locking mechanism comprises a box body connected with the partition frame, a partition plate positioned in the middle is arranged in the box body, through holes are arranged on the partition plate, a pull rod positioned in the center and a bag body surrounding the pull rod are arranged in the through holes, the bag body is filled with magnetorheological fluid which can be switched under the control of an electromagnetic coil in the box body, the bag body is also provided with an upper part blocked above the partition plate in the box body and a lower part blocked below the partition plate in the box body, a first spring is propped between the lower part and the box body, the top of the pull rod extends out of the upper part of the bag body, and the extending part of the pull rod is provided with an overflow body blocked above the upper part of the bag body;
two groups of working cylinders are symmetrically distributed on the left side and the right side of the heater, and the locking mechanism is positioned between the two groups of working cylinders;
the box bodies of the locking mechanisms are mutually connected into an integral box body, and the integral box body is positioned at the central position of the two groups of working cylinders;
the part of the box body above the partition plate is wider than the part of the box body below the partition plate;
the width of the part of the box body below the partition plate is larger than the diameter of the through hole in the partition plate, and an annular gap for the magnetorheological fluid to pass through is formed between the pull rod and the through hole.
2. The apparatus for regenerating asphalt pavement in situ according to claim 1, wherein the bottom of the heating plate is hinged to the front end of the frame, and a pitch driving mechanism for driving the heating plate to pitch and swing is connected between the top of the heating plate and the frame.
3. The apparatus for hot recycling of asphalt pavement in situ according to claim 2, wherein the pitch driving mechanism comprises a first block on the back of the heating plate, a first hydraulic cylinder hinged to the first block, a second block on the frame, and a second and third hydraulic cylinders hinged to the second block,
the first sliding block is connected with a first sliding rail positioned at the top of the back of the heating plate in an up-and-down sliding manner, an upper stop block positioned at the upper limit position of the first sliding block and a lower stop block positioned at the lower limit position of the first sliding block are respectively arranged at two ends of the first sliding rail, and a second spring is connected between the upper stop block and the first sliding block in a pushing manner;
the second sliding block is connected with a second sliding rail positioned on the frame in a sliding manner along the front-back direction, and a front stop block positioned at the front limit position of the second sliding block is arranged in front of the second sliding rail;
the other end of the first hydraulic cylinder is hinged with one end of the second hydraulic cylinder through a rotary limiting mechanism, the rotary limiting mechanism comprises a first rotary table connected with the first hydraulic cylinder and a second rotary table connected with the second hydraulic cylinder, the first rotary table and the second rotary table can be relatively rotatably connected to the same rotating shaft, an opening with a central angle of 10-25 degrees is formed in the edge of the first rotary table, and a limiting shifting tooth which extends into the opening and can relatively swing in the opening is convexly arranged on the edge of the second rotary table;
one end of the second hydraulic cylinder is connected to the second turntable, and the other end of the second hydraulic cylinder is hinged to the top of the second sliding block;
one end of the third hydraulic cylinder is hinged to the rear part of the second sliding block, and the other end of the third hydraulic cylinder is hinged to the frame.
4. The apparatus for hot recycling of asphalt pavement according to claim 1, wherein the frame is further connected with a milling mechanism located in front of and/or behind the heating plate, the milling mechanism comprises a bell-shaped housing and a milling rotor rotatably mounted therein about a left-right extending axis, the top of the housing is connected with a front hydraulic cylinder located in the front and a rear hydraulic cylinder located in the rear, the upper ends of the front and rear hydraulic cylinders are hinged to the frame, and the frame and the housing form a parallel linkage mechanism located at the bottom of the frame when the front and rear hydraulic cylinders extend or retract equally.
5. The apparatus for hot recycling of asphalt pavement according to claim 4, wherein the front and/or rear side of the housing is hinged with a shield for shielding the milling rotor, the front side of the shield faces the milling rotor, the rear side of the shield is hinged with a pitching cylinder for adjusting the pitching angle, the pitching cylinder and the shield form a crank-slider mechanism on the housing.
6. The environment-friendly long-life composite asphalt pavement in-situ heat regeneration device as claimed in claim 4, wherein the rotary shaft of the milling rotor is connected with a swing arm extending forwards and backwards, the rear end of the swing arm is hinged on the frame, the front end of the swing arm is connected with a stop lever extending leftwards and rightwards, the stop lever is connected with a U-shaped anti-falling frame fixed at the bottom of the frame in a penetrating manner, and a working hydraulic cylinder positioned in front of the milling rotor is hinged between the stop lever and the frame.
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| CN202010067884.8A CN111305029B (en) | 2020-01-20 | 2020-01-20 | Environment-friendly long-life composite asphalt pavement in-place heat regeneration device |
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| CN202010067884.8A CN111305029B (en) | 2020-01-20 | 2020-01-20 | Environment-friendly long-life composite asphalt pavement in-place heat regeneration device |
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| CN111305029B true CN111305029B (en) | 2022-05-20 |
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| CN201180253Y (en) * | 2008-04-15 | 2009-01-14 | 英达热再生有限公司 | Asphalt pavement heating apparatus of asphalt pavement heating vehicle |
| CN102926315A (en) * | 2012-11-13 | 2013-02-13 | 广东易山重工股份有限公司 | Lifting mechanism of pavement heating device of hot patching vehicle for asphalt pavement patching |
| CN203475285U (en) * | 2013-09-23 | 2014-03-12 | 南京英达公路养护车制造有限公司 | Asphalt pavement thermal regeneration repairing car additionally provided with rotary heating wall device |
| CN105926413A (en) * | 2016-06-03 | 2016-09-07 | 河北扶波机械制造有限公司 | Hotin-place recycling engine for pavement |
| CN106436580A (en) * | 2016-09-27 | 2017-02-22 | 江苏平山交通设施有限公司 | Microwave treatment vehicle for asphalt concrete in installation groove areas of bridge expansion joints |
| CN206149524U (en) * | 2016-11-18 | 2017-05-03 | 濮阳市盛源能源科技股份有限公司 | Infrared ceramics stainless steel heater far away |
| CN108086123A (en) * | 2018-01-17 | 2018-05-29 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of modularization subregion heated air circulation type asphalt pavement heater |
| CN108999065A (en) * | 2018-08-07 | 2018-12-14 | 王本勋 | A kind of asphalt pavement of highway prosthetic device |
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