CN109112932A - A kind of asphalt paving device for building - Google Patents
A kind of asphalt paving device for building Download PDFInfo
- Publication number
- CN109112932A CN109112932A CN201811051158.6A CN201811051158A CN109112932A CN 109112932 A CN109112932 A CN 109112932A CN 201811051158 A CN201811051158 A CN 201811051158A CN 109112932 A CN109112932 A CN 109112932A
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- CN
- China
- Prior art keywords
- car body
- compacting
- asphalt paving
- fixedly connected
- paving device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
- E01C19/4873—Apparatus designed for railless operation
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of asphalt paving devices for building, including car body, borehole drill construction, stirring discharge mechanism and system for compacting；The car body front end is equipped with borehole drill construction, and borehole drill construction includes front boom and drilling pipe；The stirring discharge mechanism includes mixing drum and discharge nozzle；System for compacting is equipped with below the car body, system for compacting includes compression roll and reciprocating drive mechanism；The car body is equipped with manipulation case, is equipped with vehicle power supply and switch control panel in manipulation case.For the present invention by the precession borehole drill construction equipped with drilling pipe and threaded rod, prismatic bar and rotating cylinder composition, realization is smooth to cutting at pit edge to be repaired, is convenient for subsequent asphalt reperfusion, compares and use road cutting machine, cutting efficiency is higher；By being equipped with compression roll and reciprocating drive mechanism, under the premise of car body does not move, so that compression roll is back and forth compacted the pitch after perfusion, compacting efficiency with higher.
Description
Technical field
The present invention relates to building machinery field, specifically a kind of asphalt paving device for building.
Background technique
Building machinery is the general name of mechanical equipment used in engineering construction and town and country construction, it shovels soil transport by excavating machinery
Machinery, compacting machinary, crane tool, piling machinery, pavement construction machinery, concreting machinery, concrete product is mechanical, reinforcing bar grade
Prestressing force is mechanical, finishing machinery, a variety of mechanical compositions such as aerial operation machine.
During pavement patching, need using pavement construction machinery, for pit on road surface, generally practical road surface was cut before this
Machine the edge of pit to be repaired cut it is smooth, be convenient for subsequent perfusion, after then disintegrating slag is cleared up, in asphalt reperfusion, then
It is back and forth compacted using artificial promotion compression roll or using baby roller, more using machinery, duty cycle is long.
Need a kind of small-sized road repair device for being integrated with several work function.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of asphalt paving device for building
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of asphalt paving device for building, including car body, borehole drill construction, stirring discharge mechanism and system for compacting；The car body
Front end is equipped with borehole drill construction, and borehole drill construction includes front boom and drilling pipe；The stirring discharge mechanism includes mixing drum and discharge nozzle；
System for compacting is equipped with below the car body, system for compacting includes compression roll and reciprocating drive mechanism；The car body is equipped with manipulation
Case, manipulation case is interior to be equipped with vehicle power supply and switch control panel.
As a further solution of the present invention: being bolted to connection threaded rod at the top of the drilling pipe, threaded rod passes through
It is installed with thread plate and is threadedly coupled with thread plate, thread plate is fixedly connected with front boom；It is fixedly connected at the top of the threaded rod
Prismatic bar, through having rotating cylinder and being slidably connected with rotating cylinder, rotating cylinder is nested in front boom and by bearing and front boom prismatic bar
Rotation connection；The rotating cylinder is connected with the output shaft of the first driving motor, the first driving gear set by the first driving gear set
Including being mutually perpendicular to and ratcheting gear mesh, the first driving motor are fixedly connected with front boom.
As a further solution of the present invention: the mixing drum is equipped with commissioning pipe and agitating roller, and agitating roller extends to stirring
Cylinder top is simultaneously connected with the second driving motor by shaft coupling；The discharge nozzle is connected to mixing drum, and spiral is equipped in discharge nozzle
Discharge roller, spiral discharging roller connect transmission with agitating roller upper end by transmission mechanism；The discharge nozzle is set with mixing drum connectivity part
There is manually-operated gate；The mixing drum inner wall is nested with heating device, and heating device is resistance wire.
As a further solution of the present invention: the transmission mechanism includes being connected with spiral discharging roller by the first driving belt
The first driven shaft connect, first driven shaft are rotatablely connected through front boom and with front boom by bearing, and first driven shaft passes through
Second driving belt is connected with second driven shaft, and second driven shaft is connected by the upper end of the second driving gear set and agitating roller.
As a further solution of the present invention: the compression roll is rotatably connected to movable stand, and car body lower end surface is equipped with sliding slot,
Movable stand upper end is nested in sliding slot and is slidably connected with sliding slot；The movable stand is connected with reciprocating mechanism, moves back and forth
Mechanism includes the connecting rod being fixedly connected with movable stand, and connecting rod is fixedly connected with movable frame, and movable frame is rectangle frame, and movable frame is embedded
It is cased with biasing post, biasing post is fixedly connected with eccentric disc, and eccentric disc is connected with the output shaft of third driving motor, third driving electricity
Machine is fixedly connected with car body lower end surface.
As a further solution of the present invention: the vehicle power supply is diesel-driven generator.
As a further solution of the present invention: the vehicle power supply is battery.
As a further solution of the present invention: idler wheel is equipped with below the car body, the idler wheel of rear end is driven skin by third
Band connection has the 4th driving motor, and the 4th driving motor is connected with vehicle power supply and switch control panel.
Compared with prior art, the beneficial effects of the present invention are: the present invention by be equipped with drilling pipe and threaded rod, prismatic bar and
The precession borehole drill construction of rotating cylinder composition, realizes smooth to cutting at pit edge to be repaired, is convenient for subsequent asphalt reperfusion, compared to adopting
With road cutting machine, cutting efficiency is higher；By being equipped with compression roll and reciprocating drive mechanism, under the premise of car body does not move,
So that compression roll is back and forth compacted the pitch after perfusion, compacting efficiency with higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of asphalt paving device for building；
Fig. 2 is the top view of rotating cylinder in asphalt paving device for building；
Fig. 3 is the left view of movable stand in asphalt paving device for building；
Fig. 4 is the structural schematic diagram of asphalt paving device band idler wheel driving motor for building.
In figure: 1- car body；2- front boom；3- drilling pipe；4- threaded rod；5- thread plate；6- rotating cylinder；7- prism bar；8- first
Driving gear set；The first driving motor of 9-；10- mixing drum；11- commissioning pipe；12- agitating roller；The second driving motor of 13-；14- goes out
Expects pipe；15- manually-operated gate；16- spiral discharging roller；The first driving belt of 17-；18- first driven shaft；The second driving belt of 19-；
20- second driven shaft；The second driving gear set of 21-；22- heating device；23- manipulates case；24- vehicle power supply；25- switch control
Panel；26- compression roll；27- movable stand；28- sliding slot；29- connecting rod；30- movable frame；31- eccentric disc；32- third driving motor；
33- third driving belt；The 4th driving motor of 34-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of asphalt paving device for building, including car body 1, borehole drill construction, stir
Mix discharge mechanism and system for compacting；1 front end of car body is equipped with borehole drill construction, and borehole drill construction includes front boom 2 and drilling pipe 3, bores
3 top of cylinder has been bolted to connection threaded rod 4, and threaded rod 4, which runs through, to be had thread plate 5 and be threadedly coupled with thread plate 5, screw thread
Plate 5 is fixedly connected with front boom 2；Be fixedly connected with prismatic bar 7 at the top of the threaded rod 4, prismatic bar 7 through have rotating cylinder 6 and with
Rotating cylinder 6 is slidably connected, and rotating cylinder 6 is nested in front boom 2 and is rotatablely connected by bearing and front boom 2；The rotating cylinder 6 passes through the
One driving gear set 8 is connected with the output shaft of the first driving motor 9, and the first driving gear set 8 includes being mutually perpendicular to and ratcheting
Gear mesh, the first driving motor 9 are fixedly connected with front boom 2, and the first driving motor 9 is by the first driving gear set 8 with turn
Cylinder 6 rotates, and rotating cylinder 6 drives prismatic bar 7 and threaded rod 4 to rotate, and threaded rod 4 drives the downward precession of drilling pipe 3, to pit to be repaired
Periphery is cut, so that pit edge is smooth, is convenient for asphalt reperfusion.
The stirring discharge mechanism includes mixing drum 10 and discharge nozzle 14, and mixing drum 10 is equipped with commissioning pipe 11 and agitating roller
12, agitating roller 12 extends to 10 top of mixing drum and is connected with the second driving motor 13 by shaft coupling；The discharge nozzle 14 with
Mixing drum 10 is connected to, and spiral discharging roller 16 is equipped in discharge nozzle 14, and spiral discharging roller 16 passes through on transmission mechanism and agitating roller 12
End connection transmission, transmission mechanism include passing through the first driven shaft 18 that the first driving belt 17 is connect with spiral discharging roller 16, the
One driven shaft 18 is rotatablely connected through front boom 2 and with front boom 2 by bearing, and first driven shaft 18 passes through the second driving belt
19 are connected with second driven shaft 20, and second driven shaft 20 is connect by the second driving gear set 21 with the upper end of agitating roller 12；Institute
It states discharge nozzle 14 and 10 connectivity part of mixing drum is equipped with manually-operated gate 15, the control discharging of manually-operated gate 15；10 inner wall of mixing drum
It is nested with heating device 22, heating device 22 is resistance wire, heats to asphalt stock, avoids asphalt solidification hardened.
System for compacting is equipped with below the car body 1, system for compacting includes compression roll 26 and reciprocating drive mechanism, compression roll 26
Be rotatably connected to movable stand 27,1 lower end surface of car body is equipped with sliding slot 28,27 upper end of movable stand be nested in sliding slot 28 and with sliding slot 28
It is slidably connected；The movable stand 27 is connected with reciprocating mechanism, and reciprocating mechanism includes being fixedly connected with movable stand 27
Connecting rod 29, connecting rod 29 are fixedly connected with movable frame 30, and movable frame 30 is rectangle frame, and movable frame 30 is embedded to be cased with biasing post, eccentric
Column is fixedly connected with eccentric disc 31, and eccentric disc 31 is connected with the output shaft of third driving motor 32, third driving motor 32 and vehicle
1 lower end surface of body is fixedly connected；Third driving motor 32 drives eccentric disc 32 to rotate, and the biasing post on eccentric disc 32 drives movable frame
30 transverse reciprocatings are mobile, and then movable frame 30 drives movable stand 27 and 26 traverse motion of compression roll by connecting rod 29, in vehicle
Under conditions of body 1 does not move, reciprocal compacting is carried out to the pitch of perfusion, operating efficiency is high.
The car body 1 is equipped with manipulation case 23, and vehicle power supply 24 is equipped in manipulation case 23, and vehicle power supply 24 is diesel generation
Machine or battery, vehicle power supply are each power electrical apparatus；Switch control panel 25, switch control are equipped in the manipulation case 24
Panel 25 processed is switched equipped with each driving motor, facilitates carry out centralized control.
Embodiment 2
Referring to Fig. 4, the present embodiment the difference from embodiment 1 is that: idler wheel is equipped with below the car body 1, the idler wheel of rear end is logical
It crosses third driving belt 33 and is connected with the 4th driving motor 34, the 4th driving motor 34 and vehicle power supply 24 and switch control panel
25 series connection, car body 1 easy to remove.
It should be noted that: car body, mixing drum, discharge nozzle, heating device are the prior art in the application；Drilling machine
Structure and system for compacting are the innovative point of the application；By the precession drilling for being equipped with drilling pipe and threaded rod, prismatic bar and rotating cylinder composition
Mechanism, realization is smooth to cutting at pit edge to be repaired, is convenient for subsequent asphalt reperfusion, compared to road cutting machine is used, cuts
It is more efficient；By being equipped with compression roll and reciprocating drive mechanism, under the premise of car body does not move, so that compression roll is back and forth compacted
Pitch after perfusion, compacting efficiency with higher.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of asphalt paving device for building, including car body (1), borehole drill construction, stirring discharge mechanism and system for compacting；It is special
Sign is that car body (1) front end is equipped with borehole drill construction, and borehole drill construction includes front boom (2) and drilling pipe (3)；The stirring is put
Expect that mechanism includes mixing drum (10) and discharge nozzle (14)；System for compacting is equipped with below the car body (1), system for compacting includes compacting
Roller (26) and reciprocating drive mechanism；The car body (1) is equipped with manipulation case (23), is equipped with vehicle power supply (24) in manipulation case (23)
With switch control panel (25).
2. a kind of asphalt paving device for building according to claim 1, which is characterized in that logical at the top of the drilling pipe (3)
It crosses bolt to be fixedly connected with threaded rod (4), threaded rod (4), which runs through, to be had thread plate (5) and be threadedly coupled with thread plate (5), screw thread
Plate (5) is fixedly connected with front boom (2)；It is fixedly connected with prismatic bar (7) at the top of the threaded rod (4), prismatic bar (7), which runs through, to be had
Rotating cylinder (6) is simultaneously slidably connected with rotating cylinder (6), and rotating cylinder (6) is nested in front boom (2) and is rotated by bearing and front boom (2)
Connection；The rotating cylinder (6) is connected with the output shaft of the first driving motor (9), the first driving cog by the first driving gear set (8)
Wheel group (8) includes being mutually perpendicular to and ratcheting gear mesh, the first driving motor (9) are fixedly connected with front boom (2).
3. a kind of asphalt paving device for building according to claim 1, which is characterized in that the mixing drum (10) is equipped with
Commissioning pipe (11) and agitating roller (12), agitating roller (12) extend to above mixing drum (10) and are connected with the second drive by shaft coupling
Dynamic motor (13)；The discharge nozzle (14) is connected to mixing drum (10), is equipped with spiral discharging roller (16) in discharge nozzle (14), spiral
Discharge roller (16) connect transmission with agitating roller (12) upper end by transmission mechanism；The discharge nozzle (14) is connected to mixing drum (10)
Place is equipped with manually-operated gate (15)；Mixing drum (10) inner wall is nested with heating device (22), and heating device (22) is resistance wire.
4. a kind of asphalt paving device for building according to claim 3, which is characterized in that the transmission mechanism include with
Spiral discharging roller (16) passes through the first driven shaft (18) that the first driving belt (17) connect, and first driven shaft (18) runs through front overhang
Arm (2) is simultaneously rotatablely connected with front boom (2) by bearing, and first driven shaft (18) is connected with the by the second driving belt (19)
Two driven shafts (20), second driven shaft (20) are connect by the second driving gear set (21) with the upper end of agitating roller (12).
5. a kind of asphalt paving device for building according to claim 1, which is characterized in that compression roll (26) rotation
Be connected with movable stand (27), car body (1) lower end surface is equipped with sliding slot (28), movable stand (27) upper end be nested in sliding slot (28) and with
Sliding slot (28) is slidably connected；The movable stand (27) is connected with reciprocating mechanism, and reciprocating mechanism includes and movable stand
(27) connecting rod (29) being fixedly connected, connecting rod (29) are fixedly connected with movable frame (30), and movable frame (30) is rectangle frame, movable frame
(30) it embeds and is cased with biasing post, biasing post is fixedly connected with eccentric disc (31), and eccentric disc (31) is connected with third driving motor
(32) output shaft, third driving motor (32) are fixedly connected with car body (1) lower end surface.
6. a kind of asphalt paving device for building according to claim 1, which is characterized in that the vehicle power supply (24) is
Diesel-driven generator.
7. a kind of asphalt paving device for building according to claim 1, which is characterized in that the vehicle power supply (24) is
Battery.
8. a kind of asphalt paving device for building according to claim 1, which is characterized in that set below the car body (1)
There is idler wheel, the idler wheel of rear end is connected with the 4th driving motor (34), the 4th driving motor (34) by third driving belt (33)
It connects with vehicle power supply (24) and switch control panel (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051158.6A CN109112932A (en) | 2018-09-10 | 2018-09-10 | A kind of asphalt paving device for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051158.6A CN109112932A (en) | 2018-09-10 | 2018-09-10 | A kind of asphalt paving device for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109112932A true CN109112932A (en) | 2019-01-01 |
Family
ID=64858236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051158.6A Pending CN109112932A (en) | 2018-09-10 | 2018-09-10 | A kind of asphalt paving device for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109112932A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080069A (en) * | 2019-05-28 | 2019-08-02 | 朱建武 | A kind of road construction asphalt paving device |
| CN110158433A (en) * | 2019-05-24 | 2019-08-23 | 赣州市兴顺辉科技有限公司 | A kind of road and bridge repairing road surface at quick speed device |
| CN110241686A (en) * | 2019-05-31 | 2019-09-17 | 中国建设基础设施有限公司 | A kind of working spreading out device of asphalt roads |
| CN110387789A (en) * | 2019-07-08 | 2019-10-29 | 滕小茶 | A kind of road pavement tamping equipment |
| CN110552276A (en) * | 2019-09-05 | 2019-12-10 | 浙江海洋大学 | Highway maintenance equipment |
| CN111021203A (en) * | 2020-01-02 | 2020-04-17 | 孙义 | Quick asphalt paving device for highway pavement |
| CN111041957A (en) * | 2019-12-11 | 2020-04-21 | 秦刚 | Road surface crack patching device is used in traffic engineering construction |
| CN111236004A (en) * | 2020-01-13 | 2020-06-05 | 陈嘉宇 | Compaction device is laid to road asphalt |
| CN111576154A (en) * | 2020-06-08 | 2020-08-25 | 杭州楷围机械科技有限公司 | Automatic compaction equipment of laying of pitch |
| CN112252142A (en) * | 2020-10-23 | 2021-01-22 | 海环科技集团股份有限公司 | Self-propelled asphalt in-situ heating regeneration device |
| CN112281586A (en) * | 2020-10-22 | 2021-01-29 | 王虹 | Energy-concerving and environment-protective type heating cooling integral type high efficiency pitch laying device |
| CN112813786A (en) * | 2021-01-08 | 2021-05-18 | 江秀剑 | Repair equipment for highway maintenance and use method thereof |
| CN113322754A (en) * | 2021-06-03 | 2021-08-31 | 杜璟 | Town road and bridge roadbed repairing asphalt paving stacking machine and process flow |
| CN114292660A (en) * | 2021-12-07 | 2022-04-08 | 西安近代化学研究所 | Asphalt molding feeder device and technological method |
| CN116657472A (en) * | 2023-07-24 | 2023-08-29 | 河南勇威特种设备有限公司 | Road surface repair equipment for road construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110158433A (en) * | 2019-05-24 | 2019-08-23 | 赣州市兴顺辉科技有限公司 | A kind of road and bridge repairing road surface at quick speed device |
| CN110080069A (en) * | 2019-05-28 | 2019-08-02 | 朱建武 | A kind of road construction asphalt paving device |
| CN110241686A (en) * | 2019-05-31 | 2019-09-17 | 中国建设基础设施有限公司 | A kind of working spreading out device of asphalt roads |
| CN110387789B (en) * | 2019-07-08 | 2021-05-25 | 广东东和建设有限公司 | Road paving and vibrating device |
| CN110387789A (en) * | 2019-07-08 | 2019-10-29 | 滕小茶 | A kind of road pavement tamping equipment |
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| CN111041957A (en) * | 2019-12-11 | 2020-04-21 | 秦刚 | Road surface crack patching device is used in traffic engineering construction |
| CN111041957B (en) * | 2019-12-11 | 2022-08-19 | 秦刚 | Road surface crack patching device is used in traffic engineering construction |
| CN111021203A (en) * | 2020-01-02 | 2020-04-17 | 孙义 | Quick asphalt paving device for highway pavement |
| CN111236004A (en) * | 2020-01-13 | 2020-06-05 | 陈嘉宇 | Compaction device is laid to road asphalt |
| CN111576154A (en) * | 2020-06-08 | 2020-08-25 | 杭州楷围机械科技有限公司 | Automatic compaction equipment of laying of pitch |
| CN111576154B (en) * | 2020-06-08 | 2021-01-19 | 义乌市路兴建设有限公司 | Automatic compaction equipment of laying of pitch |
| CN112281586A (en) * | 2020-10-22 | 2021-01-29 | 王虹 | Energy-concerving and environment-protective type heating cooling integral type high efficiency pitch laying device |
| CN112252142A (en) * | 2020-10-23 | 2021-01-22 | 海环科技集团股份有限公司 | Self-propelled asphalt in-situ heating regeneration device |
| CN112252142B (en) * | 2020-10-23 | 2022-03-29 | 海环科技集团股份有限公司 | Self-propelled asphalt in-situ heating regeneration device |
| CN112813786A (en) * | 2021-01-08 | 2021-05-18 | 江秀剑 | Repair equipment for highway maintenance and use method thereof |
| CN113322754A (en) * | 2021-06-03 | 2021-08-31 | 杜璟 | Town road and bridge roadbed repairing asphalt paving stacking machine and process flow |
| CN114292660A (en) * | 2021-12-07 | 2022-04-08 | 西安近代化学研究所 | Asphalt molding feeder device and technological method |
| CN116657472A (en) * | 2023-07-24 | 2023-08-29 | 河南勇威特种设备有限公司 | Road surface repair equipment for road construction |
| CN116657472B (en) * | 2023-07-24 | 2023-10-13 | 河南勇威特种设备有限公司 | Road surface repair equipment for road construction |
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Application publication date: 20190101 |