CN112301844A - Highway construction roadbed leveling device and technology - Google Patents
Highway construction roadbed leveling device and technology Download PDFInfo
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- CN112301844A CN112301844A CN202011246477.XA CN202011246477A CN112301844A CN 112301844 A CN112301844 A CN 112301844A CN 202011246477 A CN202011246477 A CN 202011246477A CN 112301844 A CN112301844 A CN 112301844A
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- fixedly connected
- blanking box
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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
- E01C19/4806—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 rollers for consolidating or finishing
- E01C19/482—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 rollers for consolidating or finishing the materials being uncoated stone or similar granular materials, e.g. sand
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention relates to the technical field of roadbed leveling, in particular to a roadbed leveling device for highway construction, which comprises an operation chamber, wherein one side of the operation chamber is fixedly connected with an engine room, one side of the engine room is fixedly provided with a cross rod, one end of the cross rod, which is far away from the engine room, is fixedly connected with a universal ball bearing, the universal ball bearing is fixedly connected with a shovel, one side of the engine room is uniformly provided with four first hydraulic cylinders, hydraulic rods of the four first hydraulic cylinders are all rotatably connected onto the shovel, the bottom of the other side of the operation chamber is fixedly connected with a base, the bottoms of the operation chamber, the engine room and the base are uniformly provided with wheels, and the top of the base is fixedly provided with a blanking box. The stability of the roadbed can be improved.
Description
Technical Field
The invention relates to the technical field of roadbed leveling, in particular to a device and a process for leveling a roadbed in highway construction.
Background
The highway subgrade is an important component in highway engineering, sufficient stability and durability are necessary, on one hand, the highway subgrade is ensured by perfect design, on the other hand, the highway subgrade is realized by a scientific and rigorous construction method, and the quality of the subgrade also determines the quality of a road surface. The existing roadbed construction process generally comprises the steps of cleaning a construction site, leveling a road surface, filling and compacting in layers and then leveling, but the construction period of the method is long, and the filling in layers generally adopts a pile-up total pushing method, which is sometimes not uniform and affects the stability of the roadbed, so that the device and the process for leveling the roadbed in the highway construction are provided, the roadbed construction efficiency is improved, and the roadbed is laid more uniformly.
Disclosure of Invention
In order to overcome the current defects, the invention provides a device and a process for leveling a road foundation in highway construction.
The technical implementation scheme of the invention is as follows: a highway construction roadbed leveling device comprises an operation room, wherein one side of the operation room is fixedly connected with an engine room, one side of the engine room is fixedly provided with a cross rod, one end of the cross rod, which is far away from the engine room, is fixedly connected with a universal ball bearing, the universal ball bearing is fixedly connected with a shovel, one side of the engine room is uniformly provided with four first hydraulic cylinders, the hydraulic rods of the four first hydraulic cylinders are all rotatably connected to the shovel, the bottom of the other side of the operation room is fixedly connected with a base, the bottoms of the operation room, the engine room and the base are uniformly provided with wheels, the top of the base is fixedly provided with a blanking box, the top of the blanking box is provided with a box opening, the top of the box opening is fixedly provided with a sealing cover component, the bottom of the blanking box is provided with a bottom plate, and the center of, the position of feed opening is provided with the subassembly that opens and shuts, the equal fixedly connected with slope slide in the top both sides of bottom plate, two the equal fixed connection in bottom of slope slide is on the bottom plate, two the lateral wall of slope slide is fixed connection respectively at the both sides inner wall of workbin, one side fixed mounting of workbin has the hack subassembly, two pull rods of one side fixedly connected with of control chamber, two are kept away from to the base the pull rod rotates jointly and is connected with the steel drum, the steel sand has been placed to the inside of steel drum, the fixed steel rod that is provided with in both sides of steel drum, two the steel rod rotates with two pull rods respectively and is connected.
Preferably, the four hydraulic rods of the first hydraulic cylinders are all rotatably connected with rotating shafts, and the four rotating shafts are rotatably connected to one side of the car shovel.
Preferably, the closing cap subassembly includes the hinge, one side fixed connection of hinge is on the workbin, the opposite side fixedly connected with apron of hinge, the apron is located the top of workbin, the one end fixedly connected with hasp of hinge is kept away from to the apron, the one end fixed mounting of hasp is on the apron, the other end fixed mounting of hasp is on the workbin.
Preferably, the subassembly that opens and shuts includes two second hydraulic cylinder, two second hydraulic cylinder is fixed mounting respectively in the inside of bottom plate, two the equal fixedly connected with diaphragm of hydraulic stem of second hydraulic cylinder, two the diaphragm runs through the bottom plate and extends to feed opening and two the diaphragm is laminated each other.
Preferably, the hack device includes the motor case, motor case fixed connection is at one side outer wall of blanking box, the inside fixedly connected with motor of motor case, the output shaft fixedly connected with dwang of motor, the dwang runs through the outer wall of blanking box and extends to the inside of blanking box, a plurality of rings of the even fixedly connected with of outer wall of dwang, the outer wall fixedly connected with cutting piece of ring.
Preferably, the outer wall fixedly connected with first bearing of dwang, the outer lane fixed connection of first bearing is on the workbin down, first bearing inner race cover establish on the outer wall of dwang and with the outer wall fixed connection of dwang.
Preferably, a rectangular space is formed in one side, away from the base, of each of the two pull rods, a rectangular through hole is formed in the position, close to the steel rod, of each pull rod, a third hydraulic cylinder is fixedly mounted in the rectangular space, a hydraulic rod of each third hydraulic cylinder is fixedly connected with a second bearing, the second bearing is connected with the inner wall of the rectangular space in a sliding mode, and the steel rod penetrates through the rectangular through hole and is fixedly connected with the inner wall of the second bearing.
Preferably, the inner walls of the two sides of the rectangular space are provided with linear guide rails, each linear guide rail comprises a sliding rail and a sliding block, the sliding rails of the linear guide rails are fixedly arranged on the inner walls of the two sides of the rectangular space, and the second bearings are fixedly connected with the sliding blocks of the linear guide rails.
A highway construction roadbed leveling process comprises the following steps:
s1, opening the cover plate by digging the hasp, loading soil into the blanking box by using a soil loading machine, closing the cover plate and then buckling the hasp;
s2, a driver enters an operation room, and after the device is started, the shovel can rotate up and down or left and right by adjusting the lengths of the hydraulic rods of the four first hydraulic cylinders, and can scrape the road surface to different degrees;
s3, after the soil enters the blanking box, the motor drives the rotating rod to rotate so that the cutting blade rotates, large uneven soil can be crushed, the crushed soil flows to the blanking port through the inclined sliding seat, the fitting degree of the two transverse plates can be changed by controlling the hydraulic rod of the second hydraulic cylinder, so that the blanking amount of the blanking box can be controlled, and the blanking amount can be adjusted according to the vehicle speed and the road condition;
s4, pulling the pull rod to advance by the base, driving the third hydraulic cylinder and the second bearing inside by the pull rod to advance, driving the steel stick to rotate forward by the second bearing, driving the steel barrel to rotate forward, and compacting the road surface by the steel sand filled in the steel barrel;
s5, scraping and leveling sundries on the road surface by the aid of the shovel in the advancing process, paving soil on the scraped road surface by the aid of the blanking box in the advancing process, and compacting the soil paved on the road surface by the aid of the steel barrel in the advancing process.
S6, the blanking box can be cleaned, and the second layer of road base material is filled in the blanking box for paving and compacting.
Compared with the prior art, the invention has the beneficial effects that: the invention integrates the functions of cleaning the road surface, paving the roadbed and compacting, improves the roadbed construction efficiency, simultaneously ensures that the roadbed structure is uniform by uniform paving and compacting, and can improve the stability of the roadbed.
Drawings
Fig. 1 is a schematic overall front view structure of the present invention.
Fig. 2 is a schematic view of the overall top-down structure of the present invention.
FIG. 3 is a schematic cross-sectional view of the shovel of FIG. 1 of the present invention.
Fig. 4 is a schematic sectional view of the feed box of fig. 1 in a front view according to the present invention.
FIG. 5 is a schematic cross-sectional side view of the headbox of FIG. 1 of the present invention.
Fig. 6 is an enlarged structural view of a in fig. 1 according to the present invention.
Fig. 7 is a schematic sectional view of the steel can of fig. 1 in a top view.
In the figure: 1. an operation chamber; 2. an engine compartment; 3. a first hydraulic cylinder; 4. a cross bar; 5. a universal ball bearing; 6. turning a shovel; 7. a rotating shaft; 8. a wheel; 9. a base; 10. a pull rod; 11. a steel rod; 12. a steel drum; 13. a blanking box; 14. a box opening; 15. a circular ring; 16. rotating the rod; 17. cutting the slices; 18. inclining the sliding seat; 19. a base plate; 20. a second hydraulic cylinder; 21. a feeding port; 22. a transverse plate; 23. a cover plate; 24. a motor case; 25. a first bearing; 26. a hinge; 27. a hasp; 28. steel grit; 29. a rectangular space; 30. a third hydraulic cylinder; 31. a second bearing; 32. a linear guide rail; 33. a rectangular through hole; 34. an electric motor.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Examples
As shown in fig. 1, the roadbed leveling device for highway construction of the embodiment comprises an operation room 1, an engine room 2 is fixedly connected to one side of the operation room 1, a cross rod 4 is fixedly installed on one side of the engine room 2, a universal ball bearing 5 is fixedly connected to one end of the cross rod 4 far away from the engine room 2, a shovel 6 is fixedly connected to the universal ball bearing 5, four first hydraulic cylinders 3 are uniformly installed on one side of the engine room 2, hydraulic rods of the four first hydraulic cylinders 3 are all rotatably connected to the shovel 6, a base 9 is fixedly connected to the bottom of the other side of the operation room 1, wheels 8 are uniformly arranged at the bottoms of the operation room 1, the engine room 2 and the base 9, a blanking box 13 is fixedly installed at the top of the base 9, a box opening 14 is arranged at the top of the blanking box 13, a cover assembly is fixedly installed at the top of the box opening 14, a, bottom plate 19's center is provided with feed opening 21, the position of feed opening 21 is provided with the subassembly that opens and shuts, the equal fixedly connected with slope slide 18 in top both sides of bottom plate 19, the equal fixed connection in bottom of two slope slides 18 is on bottom plate 19, the lateral wall of two slope slides 18 is fixed connection respectively at the both sides inner wall of workbin 13, one side fixed mounting of workbin 13 has the hack subassembly, two pull rods 10 of one side fixedly connected with of control chamber 1 are kept away from to base 9, two pull rods 10 rotate jointly and are connected with steel drum 12, steel sand 28 has been placed to steel drum 12's inside, the fixed steel rod 11 that is provided with in both sides of steel drum 12, two steel rods 11 rotate with two pull rods 10 respectively and are.
In this embodiment, the hydraulic rods of the four first hydraulic cylinders 3 are all rotatably connected with the rotating shaft 7, and the four rotating shafts 7 are rotatably connected to one side of the shovel 6.
In this embodiment, the cover assembly includes a hinge 26, one side of the hinge 26 is fixedly connected to the blanking box 13, the other side of the hinge 26 is fixedly connected to the cover plate 23, the cover plate 23 is located at the top of the blanking box 13, one end of the cover plate 23 far away from the hinge 26 is fixedly connected to a buckle 27, one end of the buckle 27 is fixedly installed on the cover plate 23, and the other end of the buckle 27 is fixedly installed on the blanking box 13.
In this embodiment, the subassembly that opens and shuts includes two second hydraulic cylinder 20, and two second hydraulic cylinder 20 are fixed mounting respectively in the inside of bottom plate 19, and two second hydraulic cylinder 20's equal fixedly connected with diaphragm 22 of hydraulic stem, two diaphragms 22 run through bottom plate 19 and extend to feed opening 21 and two diaphragms 22 and laminate each other.
In this embodiment, the hack device includes motor case 24, and motor case 24 fixed connection is at one side outer wall of blanking box 13, and the inside fixedly connected with motor 34 of motor case 24, the output shaft fixedly connected with dwang 16 of motor 34, dwang 16 run through the outer wall of blanking box 13 and extend to the inside of blanking box 13, a plurality of rings 15 of the even fixedly connected with of outer wall of dwang 16, the outer wall fixedly connected with cutting piece 17 of ring 15.
In this embodiment, the outer wall fixedly connected with first bearing 25 of dwang 16, the outer lane fixed connection of first bearing 25 are on unloading case 13, and the inner circle cover of first bearing 25 is established on the outer wall of dwang 16 and with the outer wall fixed connection of dwang 16.
In this embodiment, rectangular space 29 has been seted up to one side inside that base 9 was kept away from to two pull rods 10, and rectangular through-hole 33 has been seted up to the position that pull rod 10 is close to steel rod 11, and fixed mounting has third hydraulic cylinder 30 in the rectangular space 29, and the hydraulic stem fixedly connected with second bearing 31 of third hydraulic cylinder 30, the inner wall sliding connection of second bearing 31 and rectangular space 29, steel rod 11 pass rectangular through-hole 33 and with the inner wall fixed connection of second bearing 31.
In this embodiment, the inner walls of the two sides of the rectangular space 29 are provided with linear guide rails 32, each linear guide rail 32 includes a slide rail and a slide block, the slide rails of the linear guide rails 32 are fixedly installed on the inner walls of the two sides of the rectangular space 29, and the second bearings 31 are fixedly connected with the slide blocks of the linear guide rails 32.
The highway construction roadbed leveling process comprises the following steps:
s1, opening the cover plate 23 by opening the hasp 27, loading soil into the blanking box 13 by using a soil loader, closing the cover plate 23 and then buckling the hasp 27;
s2, a driver enters the operation room 1, and after the device is started, the length of the hydraulic rods of the four first hydraulic cylinders 3 is adjusted, so that the vehicle shovel 6 can rotate up and down or left and right around the universal ball bearing 5, and the road surface can be scraped to different degrees;
s3, after the soil enters the blanking box 13, the motor 34 drives the rotating rod 16 to rotate so that the cutting blade 17 rotates, large and uneven soil can be crushed, the crushed soil flows to the blanking port 21 through the inclined sliding seat 18, and the joint degree of the two transverse plates 22 can be changed by controlling the hydraulic rod of the second hydraulic cylinder 20, so that the blanking amount of the blanking box 13 can be controlled, and the blanking amount can be adjusted according to the vehicle speed and the road condition;
s4, the base 9 pulls the pull rod 10 to advance, the pull rod 10 drives the third hydraulic cylinder 30 and the second bearing 31 inside to advance, the second bearing 31 drives the steel stick 11 to rotate forwards to drive the steel barrel 12 to rotate forwards, and the steel grit 28 is filled in the steel barrel 12 and can compact the road surface;
s5, scraping and leveling sundries on the road surface by the aid of the shovel 6 in the advancing process, paving soil on the scraped road surface by the aid of the blanking box 13 in the advancing process, and compacting the soil paved on the road surface by the blanking box 13 by the aid of the steel barrel 12 in the advancing process;
s6, cleaning the blanking box 13, filling the second layer of road base material into the blanking box 13, and paving and compacting.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a highway construction road bed leveling device, includes control chamber (1), its characterized in that, one side fixedly connected with engine compartment (2) of control chamber (1), one side fixed mounting of engine compartment (2) has horizontal pole (4), the one end fixedly connected with universal ball bearing (5) of engine compartment (2) are kept away from to horizontal pole (4), universal ball bearing (5) fixedly connected with car shovel (6), four first hydraulic cylinder (3) are evenly installed to one side of engine compartment (2), four the hydraulic stem of first hydraulic cylinder (3) all rotates to be connected on car shovel (6), the bottom fixedly connected with base (9) of the opposite side of control chamber (1), the bottom of control chamber (1), engine compartment (2) and base (9) evenly is provided with wheel (8), the top fixed mounting of base (9) has workbin (13), the top of workbin (13) is provided with case mouth (14), the top fixed mounting of case mouth (14) has the closing cap subassembly, the bottom of workbin (13) is provided with bottom plate (19), the center of bottom plate (19) is provided with feed opening (21), the position of feed opening (21) is provided with the subassembly that opens and shuts, the equal fixedly connected with slope slide (18) in top both sides of bottom plate (19), two the equal fixedly connected with in bottom of slope slide (18) is on bottom plate (19), two the lateral wall of slope slide (18) is fixed connection respectively at the both sides inner wall of workbin (13), one side fixed mounting of workbin (13) has the hack subassembly, one side fixedly connected with two pull rods (10) of control chamber (1) are kept away from to base (9), two pull rod (10) rotate jointly and are connected with steel bucket (12), steel grit (28) has been placed to the inside of steel drum (12), steel rod (11) are fixed to the both sides of steel drum (12), two steel rod (11) rotate with two pull rods (10) respectively and are connected.
2. A road construction roadbed leveling device according to claim 1, wherein the hydraulic rods of the four first hydraulic cylinders (3) are all rotatably connected with rotating shafts (7), and the four rotating shafts (7) are rotatably connected with one side of a vehicle shovel (6).
3. A road construction roadbed levelling apparatus according to claim 1, characterized in that the cover assembly comprises a hinge (26), one side of the hinge (26) is fixedly connected to the blanking box (13), the other side of the hinge (26) is fixedly connected with a cover plate (23), the cover plate (23) is located on the top of the blanking box (13), one end of the cover plate (23) far away from the hinge (26) is fixedly connected with a hasp (27), one end of the hasp (27) is fixedly mounted on the cover plate (23), and the other end of the hasp (27) is fixedly mounted on the blanking box (13).
4. The highway construction roadbed leveling device according to claim 1, wherein the opening and closing assembly comprises two second hydraulic cylinders (20), the two second hydraulic cylinders (20) are respectively and fixedly installed inside a bottom plate (19), hydraulic rods of the two second hydraulic cylinders (20) are fixedly connected with transverse plates (22), the two transverse plates (22) penetrate through the bottom plate (19) and extend to a discharging opening (21), and the two transverse plates (22) are mutually attached.
5. A highway construction road bed leveling device according to claim 1, characterized in that the hack device includes a motor case (24), the motor case (24) is fixedly connected to one side of the outer wall of the blanking box (13), the inside fixedly connected with motor (34) of the motor case (24), the output shaft fixedly connected with dwang (16) of motor (34), dwang (16) runs through the outer wall of the blanking box (13) and extends to the inside of the blanking box (13), a plurality of rings (15) are uniformly and fixedly connected to the outer wall of dwang (16), the outer wall fixedly connected with cutting piece (17) of ring (15).
6. A highway construction roadbed leveling device according to claim 5, wherein the outer wall of the rotating rod (16) is fixedly connected with a first bearing (25), the outer ring of the first bearing (25) is fixedly connected on the blanking box (13), and the inner ring of the first bearing (25) is sleeved on the outer wall of the rotating rod (16) and is fixedly connected with the outer wall of the rotating rod (16).
7. The highway construction roadbed leveling device according to claim 1, wherein a rectangular space (29) is formed inside one side of each of the two pull rods (10) far away from the base (9), a rectangular through hole (33) is formed in the position, close to the steel rod (11), of each pull rod (10), a third hydraulic cylinder (30) is fixedly installed in each rectangular space (29), a second bearing (31) is fixedly connected to a hydraulic rod of each third hydraulic cylinder (30), each second bearing (31) is slidably connected with the inner wall of each rectangular space (29), and each steel rod (11) penetrates through each rectangular through hole (33) and is fixedly connected with the inner wall of each second bearing (31).
8. A road construction roadbed leveling device according to claim 7, characterized in that the two side inner walls of the rectangular space (29) are provided with linear guide rails (32), the linear guide rails (32) comprise sliding rails and sliding blocks, the sliding rails of the linear guide rails (32) are fixedly arranged on the two side inner walls of the rectangular space (29), and the second bearings (31) are fixedly connected with the sliding blocks of the linear guide rails (32).
9. A highway construction subgrade leveling process according to any one of claims 1-8, comprising the steps of:
s1, opening the cover plate (23) by opening the hasp (27), loading soil into the blanking box (13) by using a soil loading machine, closing the cover plate (23), and then buckling the hasp (27);
s2, a driver enters the operation room (1), after the device is started, the length of the hydraulic rods of the four first hydraulic cylinders (3) is adjusted, so that the vehicle shovel (6) can rotate up and down or left and right around the universal ball bearing (5), and the road surface can be scraped to different degrees;
s3, after the soil enters the blanking box (13), the motor (34) drives the rotating rod (16) to rotate to enable the cutting blade (17) to rotate, large uneven soil can be crushed, the crushed soil flows to the blanking port (21) through the inclined sliding seat (18), the attachment degree of the two transverse plates (22) can be changed by controlling the hydraulic rod of the second hydraulic cylinder (20), so that the blanking amount of the blanking box (13) can be controlled, and the blanking amount can be adjusted according to the vehicle speed and the road condition;
s4, pulling a pull rod (10) to advance by a base (9), driving a third hydraulic cylinder (30) and a second bearing (31) inside by the pull rod (10), driving a steel stick (11) to rotate forwards by the second bearing (31), driving a steel barrel (12) to rotate forwards, and compacting the road surface by steel sand (28) filled in the steel barrel (12);
s5, scraping and leveling sundries on the road surface by a shovel (6) in the advancing process, paving soil on the scraped road surface by a blanking box (13) in the advancing process, and compacting the soil paved on the road surface by the blanking box (13) by a steel barrel (12) in the advancing process;
s6, after paving and compacting a layer of pavement, cleaning the blanking box (13), filling a second layer of road base material into the blanking box (13), and paving and compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246477.XA CN112301844A (en) | 2020-11-10 | 2020-11-10 | Highway construction roadbed leveling device and technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246477.XA CN112301844A (en) | 2020-11-10 | 2020-11-10 | Highway construction roadbed leveling device and technology |
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| Publication Number | Publication Date |
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| CN112301844A true CN112301844A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011246477.XA Pending CN112301844A (en) | 2020-11-10 | 2020-11-10 | Highway construction roadbed leveling device and technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687269A (en) * | 2022-05-12 | 2022-07-01 | 安徽中诚建业建设工程有限公司 | Highway engineering is with energy-saving pitch device that paves |
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| CN105544635A (en) * | 2016-02-04 | 2016-05-04 | 杨五孬 | Scraper knife device for engineering machinery |
| CN208266637U (en) * | 2018-05-03 | 2018-12-21 | 魏运磊 | A kind of pitch that highway construction uses fills up device |
| CN210066440U (en) * | 2019-04-18 | 2020-02-14 | 南京同力建设集团股份有限公司 | Integrated intelligent construction device |
| CN111877101A (en) * | 2020-08-08 | 2020-11-03 | 王尚华 | Hot rolling roller and rolling method for asphalt road construction |
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- 2020-11-10 CN CN202011246477.XA patent/CN112301844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010038046A1 (en) * | 2000-05-05 | 2001-11-08 | Normand Savard | Spreading device for confined application of grain type materials |
| CN105544635A (en) * | 2016-02-04 | 2016-05-04 | 杨五孬 | Scraper knife device for engineering machinery |
| CN208266637U (en) * | 2018-05-03 | 2018-12-21 | 魏运磊 | A kind of pitch that highway construction uses fills up device |
| CN210066440U (en) * | 2019-04-18 | 2020-02-14 | 南京同力建设集团股份有限公司 | Integrated intelligent construction device |
| CN111877101A (en) * | 2020-08-08 | 2020-11-03 | 王尚华 | Hot rolling roller and rolling method for asphalt road construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114687269A (en) * | 2022-05-12 | 2022-07-01 | 安徽中诚建业建设工程有限公司 | Highway engineering is with energy-saving pitch device that paves |
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Application publication date: 20210202 |