CN214882781U - Device of mating formation of water permeability pitch - Google Patents
Device of mating formation of water permeability pitch Download PDFInfo
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- CN214882781U CN214882781U CN202120834812.1U CN202120834812U CN214882781U CN 214882781 U CN214882781 U CN 214882781U CN 202120834812 U CN202120834812 U CN 202120834812U CN 214882781 U CN214882781 U CN 214882781U
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- protection casing
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- 230000035699 permeability Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 title claims description 8
- 230000013011 mating Effects 0.000 title claims description 8
- 239000010426 asphalt Substances 0.000 claims abstract description 20
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 2
- 238000003756 stirring Methods 0.000 description 12
- 238000005056 compaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010409 ironing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 208000034189 Sclerosis Diseases 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Road Paving Machines (AREA)
Abstract
The utility model discloses a paving device of water permeability pitch, including frame, paving device and toggle device, the frame bilateral symmetry is fixed with first mounting panel and second mounting panel, paving device is used for the paving of pitch, including the driving motor with first mounting panel fixed connection, the one end that the output shaft of driving motor rotated and run through first mounting panel is fixed with the axis of rotation through the shaft coupling, the symmetry is fixed with first thick liquid piece and the second thick liquid piece of opposite direction of rotation in the axis of rotation, toggle device is used for dialling accumulational pitch to the region of laying, toggle device symmetry is equipped with two sets, the utility model discloses a through toggle device pave paving device to the region of lining that the pitch of edge accumulational is in time, avoid the accumulation of pitch to cause the pitch overflow, can't in time compact, need extravagant follow-up manual processing, simultaneously, the continuous area of dialling accumulational pitch back to the region of laying, prevent the asphalt from adhering to the periphery and hardening, thereby causing continuous accumulation.
Description
Technical Field
The utility model relates to a pitch laying equipment technical field specifically is a device of mating formation of water permeability pitch.
Background
The asphalt paver is a machine for uniformly paving an asphalt mixture on a road base layer and performing primary compaction and leveling, and is divided into a crawler type machine and a tire type machine, and the machine consists of two parts of traction, paving, compaction and ironing. The former includes frame, power device, walking device, hopper, material door, scraper conveyer, screw spreader and driver's cab. The latter comprises a traction arm, a compaction mechanism and an ironing device, wherein the ironing device comprises an ironing plate, a thickness regulator, an arch degree regulator, a heating device and the like.
When the asphalt paving machine uses, pitch is carried to the screw paver through the scraper conveyor, the screw paver is with pitch pave to subaerial, again by ironing device with its preliminary compaction ironing, however, the screw paver is with pitch pave to subaerial time, can be continuous push away the edge of laying the region with pitch, form certain piling up, pile up the in-process constantly, a certain amount of pitch can't in time be compacted, spill over the biggest compaction boundary of ironing device, lead to corresponding pitch can't not be compacted, influence the effect of laying of pitch, for this reason, we propose the device of mating formation of a water permeability pitch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an avoid marginal pitch to pile up and spill over device of mating formation of unable compacted water permeability pitch to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device of mating formation of water permeability pitch, includes frame, paving device and toggle gear, frame bilateral symmetry is fixed with first mounting panel and second mounting panel, the paving device is used for the paving of pitch, the paving device include with first mounting panel fixed connection's driving motor, driving motor's output shaft rotates the one end that runs through first mounting panel and is fixed with the axis of rotation through the shaft coupling, driving motor's one end is passed through the bearing and is connected with first mounting panel rotation in the axis of rotation, the symmetry is fixed with first thick liquid piece and the second thick liquid piece that turns to opposite in the axis of rotation, toggle gear is used for dialling accumulational pitch to laying the region, the toggle gear symmetry is equipped with two sets ofly, toggle gear includes the protection casing, protection casing and corresponding first mounting panel or second mounting panel fixed connection, and be connected with the axis of rotation, the one end that the frame was kept away from to the protection casing rotates and is connected with the commentaries on classics board, be fixed with on the commentaries on classics board and stir the piece, install in the protection casing and be used for driving commentaries on classics board pivoted drive assembly.
Preferably, the drive assembly includes the cam with axis of rotation fixed connection, the cam laminating has the impeller that is used for promoting the commentaries on classics board, install the resetting means that is used for changeing the board and resets between commentaries on classics board and the protection casing, rotate through the axis of rotation and drive corresponding cam and rotate, finally reach the drive and change the board and rotate, drive and dial the piece and dial back the pitch and spread the region, avoid piling up of pitch to cause pitch excessive, unable timely compaction, need extravagant follow-up manual processing, simultaneously, the continuous pitch of will piling up is dialled back the region of paving, avoid marginal pitch to glue and link at periphery and sclerosis, cause lasting piling up.
Preferably, the pushing part comprises a pushing plate attached to the cam, two guide rods are fixed on one side of the pushing plate far away from the cam, one ends of the guide rods far away from the pushing plate are in contact with the rotating plate, two sliding sleeves fixedly connected with the corresponding first mounting plate or the second mounting plate are sleeved on the guide rods in an outward sliding mode, the guide rods are continuously pushed by the cam to move in the sliding sleeves, and then the guide rods push the rotating plate to rotate, so that the structure is simple and convenient to achieve.
Preferably, resetting means include with protection casing inner wall fixed connection's arc sleeve, sliding connection has the arc telescopic link with commentaries on classics board fixed connection in the arc sleeve, the arc sleeve overcoat has cup jointed the spring, the both ends of spring respectively with protection casing inner wall and commentaries on classics board fixed connection, the centre of a circle of arc sleeve and arc telescopic link is located the pivot between commentaries on classics board and the protection casing, through the combined action of arc sleeve, arc telescopic link and spring among the resetting means, has guaranteed the commentaries on classics board and has dialled timely the reseing of piece, has guaranteed the sustained contact of commentaries on classics board and guide bar simultaneously, makes the transmission steady continuous.
Preferably, the stirring part comprises a stirring plate with one end fixedly connected with the rotating plate, and the asphalt is stirred through the stirring plate, so that the asphalt stirring device is simple in structure and low in cost.
Preferably, dial and install the reinforcing plate between the board and changeing the board, the both ends of reinforcing plate respectively with change the board with dial board fixed connection, through setting up of reinforcing plate increased the fixed strength who dials board and commentaries on classics board, improve life.
Preferably, the guide rod is attached to one end of the rotating plate and provided with an arc-shaped end face, so that stable contact in the rotating process of the rotating plate is guaranteed.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a shifting device will pave the device and pave to the timely group of the accumulational pitch in edge to the region of paving, avoid piling up of pitch to cause pitch excessive, unable timely compaction, need extravagant follow-up manual handling, simultaneously, the continuous group will be piled up pitch and dial back the region of paving, avoid marginal pitch to glue even at periphery and sclerosis, cause the piling up that lasts.
2. The utility model discloses an one end at the guide bar laminating commentaries on classics board sets up the arc terminal surface, guarantees to change the board and rotates the stable contact of in-process.
3. The utility model discloses an install the reinforcing plate between dialling the board and changeing the board, increased the fixed strength who dials board and change the board, improve life.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the toggle device of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
fig. 4 is a schematic structural view of another embodiment of the toggle member of the present invention.
In the figure: 1-a frame; 2-a first mounting plate; 3-a second mounting plate; 4-paving device; 5-driving a motor; 6-rotating shaft; 7-a first paddle; 8-second pulp sheet; 9-a toggle device; 10-a protective cover; 11-rotating the plate; 12-a toggle member; 13-a drive assembly; 14-a cam; 15-a pusher; 16-a reset device; 17-a push plate; 18-a guide bar; 19-a sliding sleeve; 20-an arc-shaped sleeve; 21-arc telescopic rod; 22-a spring; 23-pulling a plate; 24-a reinforcement plate; 25-arc end face.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a device of mating formation of water permeability pitch, includes frame 1, the device 4 and the toggle gear 9 that pave, 1 bilateral symmetry in frame is fixed with first mounting panel 2 and second mounting panel 3, the device 4 that paves is used for paving of pitch, the device 4 that paves includes the driving motor 5 with first mounting panel 2 fixed connection, the one end that driving motor 5's output shaft rotated and runs through first mounting panel 2 is fixed with axis of rotation 6 through the shaft coupling, the one end that driving motor 5 was kept away from to axis of rotation 6 is passed through the bearing and is connected with first mounting panel 2 rotation, the symmetry is fixed with first thick liquid piece 7 and the second thick liquid piece 8 that revolve to opposite on the axis of rotation 6, toggle gear 9 is used for dialling accumulational pitch to laying area, toggle gear 9 symmetry is equipped with two sets ofly, toggle gear 9 includes protection casing 10, protection casing 10 and corresponding first mounting panel 2 or second mounting panel 3 fixed connection, and is connected with axis of rotation 6 is rotated, the one end of protection casing 10 far away from frame 1 rotates and is connected with commentaries on classics board 11, be fixed with on the commentaries on classics board 11 and stir the piece 12, install in the protection casing 10 and be used for driving commentaries on classics board 11 pivoted drive assembly 13.
Wherein, drive assembly 13 includes the cam 14 with axis of rotation 6 fixed connection, cam 14 laminates and has been used for promoting the impeller 15 that changes board 11, it is used for changing the resetting means 16 that board 11 resets to install between board 11 and the protection casing 10 to change, drive corresponding cam 14 through the rotation of axis of rotation 6 and rotate, finally reach the drive and change board 11 and rotate, drive and dial the part 12 and dial back the paving area with pitch, it is excessive to avoid piling up of pitch to cause pitch, unable timely compaction, the follow-up manual processing that needs to be wasted, simultaneously, the continuous area of paving of dialling back piled up pitch, avoid marginal pitch to glue at periphery and sclerosis, cause lasting piling up.
The pushing part 15 comprises a pushing plate 17 attached to the cam 14, two guide rods 18 are fixed on one side, away from the cam 14, of the pushing plate 17, one ends, away from the pushing plate 17, of the guide rods 18 are in contact with the rotating plate 11, two sliding sleeves 19 fixedly connected with the corresponding first mounting plate 2 or the second mounting plate 3 are sleeved on the outer sides of the guide rods 18 in a sliding mode, the guide rods 18 on the pushing plate 17 are continuously pushed through the cam 14 to move in the sliding sleeves 19, then the guide rods 18 push the rotating plate 11 to rotate, and the structure is simple and convenient to achieve.
The stirring part 12 comprises a stirring plate 23 with one end fixedly connected with the rotating plate 11, and the asphalt is stirred through the stirring plate 23, so that the structure is simple, and the cost is low.
Dial and install reinforcing plate 24 between board 23 and the commentaries on classics board 11, the both ends of reinforcing plate 24 respectively with change board 11 with dial board 23 fixed connection, through setting up of reinforcing plate 24 increased the fixed strength who dials board 23 and commentaries on classics board 11, improve life.
In order to facilitate the guide rod 18 to be in full contact with the rotating plate 11, an arc-shaped end surface 25 is arranged at one end, attached to the rotating plate 11, of the guide rod 18, so that stable contact in the rotating process of the rotating plate 11 is guaranteed.
In this scheme, the theory of operation of toggle device 9: start driving motor 5 and drive axis of rotation 6 and rotate, spread out pitch through reverse first thick liquid 7 and second thick liquid 8, axis of rotation 6 pivoted in-process, drive the cam 14 that corresponds and rotate, rotate through cam 14 and drive the guide bar 18 on the push pedal 17 and slide in sliding sleeve 19, and then promote commentaries on classics board 11 and rotate and drive and dial a 12 rotation, dial accumulational pitch to the region of paving, then guarantee commentaries on classics board 11 and the continuous contact of guide bar 18 through resetting means 16, realize commentaries on classics board 11 and dial the reseing of a 12.
In the scheme, the drive motor 5 is preferably Y80M1-2 in model, the motor is supplied by mains supply, the motor operation circuit is a normal and reverse rotation control program of a conventional motor, the circuit operation is a conventional circuit, the circuits and the control related in the scheme are the prior art, and too much description is not repeated herein.
Example two
Referring to fig. 1-2, in this embodiment, a further description of the first embodiment is provided, the paving device for water-permeable asphalt includes a frame 1, a paving device 4 and a shifting device 9, a first mounting plate 2 and a second mounting plate 3 are symmetrically fixed on two sides of the frame 1, the paving device 4 is used for paving asphalt, the paving device 4 includes a driving motor 5 fixedly connected with the first mounting plate 2, one end of the output shaft of the driving motor 5, which penetrates through the first mounting plate 2, is fixed with a rotating shaft 6 through a coupler, one end of the rotating shaft 6, which is far away from the driving motor 5, is rotatably connected with the first mounting plate 2 through a bearing, a first paddle 7 and a second paddle 8 with opposite rotation directions are symmetrically fixed on the rotating shaft 6, the shifting device 9 is used for placing stacked asphalt to a paving area, two groups of the shifting device 9 are symmetrically arranged, toggle 9 includes protection casing 10, protection casing 10 and the first mounting panel 2 or the 3 fixed connection of second mounting panel that correspond, and rotate with axis of rotation 6 and be connected, the one end that the frame 1 was kept away from to protection casing 10 rotates and is connected with commentaries on classics board 11, be fixed with on changeing board 11 and dial piece 12, install in the protection casing 10 and be used for the drive to change board 11 pivoted drive assembly 13.
Wherein, drive assembly 13 includes the cam 14 with axis of rotation 6 fixed connection, cam 14 laminates and has been used for promoting the impeller 15 that changes board 11, it is used for changing the resetting means 16 that board 11 resets to install between board 11 and the protection casing 10 to change, drive corresponding cam 14 through the rotation of axis of rotation 6 and rotate, finally reach the drive and change board 11 and rotate, drive and dial the part 12 and dial back the paving area with pitch, it is excessive to avoid piling up of pitch to cause pitch, unable timely compaction, the follow-up manual processing that needs to be wasted, simultaneously, the continuous area of paving of dialling back piled up pitch, avoid marginal pitch to glue at periphery and sclerosis, cause lasting piling up.
Resetting means 16 includes the arc sleeve 20 with protection casing 10 inner wall fixed connection, sliding connection has the arc telescopic link 21 with changeing 11 fixed connection of board in the arc sleeve 20, the spring 22 has been cup jointed outward to the arc sleeve 20, the both ends of spring 22 respectively with protection casing 10 inner wall and change 11 fixed connection of board, the centre of a circle of arc sleeve 20 and arc telescopic link 21 is located the pivot between commentaries on classics board 11 and the protection casing 10, through the combined action of arc sleeve 20, arc telescopic link 21 and spring 22 in resetting means 16, has guaranteed to change board 11 and has stirred timely the reseing of 12, has guaranteed the sustained contact of changeing board 11 and guide bar 18 simultaneously, makes the transmission steady continuous.
EXAMPLE III
Referring to fig. 4, this embodiment is a further description of other embodiments, and a permeable asphalt paving device includes a frame 1, a paving device 4, and a shifting device 9, where a first mounting plate 2 and a second mounting plate 3 are symmetrically fixed on two sides of the frame 1, the paving device 4 is used for paving asphalt, the paving device 4 includes a driving motor 5 fixedly connected to the first mounting plate 2, one end of an output shaft of the driving motor 5, which penetrates the first mounting plate 2 in a rotating manner, is fixed with a rotating shaft 6 through a coupler, one end of the rotating shaft 6, which is far away from the driving motor 5, is connected to the first mounting plate 2 through a bearing, the rotating shaft 6 is symmetrically fixed with a first paddle 7 and a second paddle 8 with opposite rotating directions, the shifting device 9 is used for shifting stacked asphalt to a paving area, and two groups of the shifting device 9 are symmetrically arranged, toggle 9 includes protection casing 10, protection casing 10 and the first mounting panel 2 or the 3 fixed connection of second mounting panel that correspond, and rotate with axis of rotation 6 and be connected, the one end that the frame 1 was kept away from to protection casing 10 rotates and is connected with commentaries on classics board 11, be fixed with on changeing board 11 and dial piece 12, install in the protection casing 10 and be used for the drive to change board 11 pivoted drive assembly 13.
The stirring part 12 comprises a stirring plate 23 with one end fixedly connected with the rotating plate 11, and one side of the stirring plate 23 close to the paving device 4 is in an arc shovel shape, so that the asphalt can be stirred conveniently.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device of mating formation of water permeability pitch, includes frame (1), frame (1) bilateral symmetry is fixed with first mounting panel (2) and second mounting panel (3), its characterized in that still includes:
the paving device (4) is used for paving asphalt and comprises a driving motor (5) fixedly connected with a first mounting plate (2), a rotating shaft (6) is fixed at one end, penetrating through the first mounting plate (2), of an output shaft of the driving motor (5) in a rotating mode through a coupler, one end, far away from the driving motor (5), of the rotating shaft (6) is rotatably connected with the first mounting plate (2) through a bearing, and a first blade (7) and a second blade (8) which are opposite in rotating direction are symmetrically fixed on the rotating shaft (6);
toggle arrangement (9) for dial piled up pitch to laying the region, toggle arrangement (9) symmetry is equipped with two sets ofly, toggle arrangement (9) are including protection casing (10), protection casing (10) and first mounting panel (2) or second mounting panel (3) fixed connection that correspond, and rotate with axis of rotation (6) and be connected, the one end that frame (1) was kept away from in protection casing (10) is rotated and is connected with commentaries on classics board (11), be fixed with on commentaries on classics board (11) and dial and move piece (12), install in protection casing (10) and be used for driving commentaries on classics board (11) pivoted drive assembly (13).
2. The paving device of the permeable asphalt of claim 1, wherein: the driving assembly (13) comprises a cam (14) fixedly connected with the rotating shaft (6), a pushing piece (15) used for pushing the rotating plate (11) is attached to the cam (14), and a resetting device (16) used for resetting the rotating plate (11) is installed between the rotating plate (11) and the protective cover (10).
3. The paving device of the permeable asphalt of claim 2, wherein: the pushing piece (15) comprises a pushing plate (17) attached to the cam (14), two guide rods (18) are fixed on one side, away from the cam (14), of the pushing plate (17), one ends, away from the pushing plate (17), of the guide rods (18) are in contact with the rotating plate (11), and sliding sleeves (19) fixedly connected with the corresponding first mounting plate (2) or the second mounting plate (3) are sleeved on the outer portions of the two guide rods (18) in a sliding mode.
4. The paving device of the permeable asphalt of claim 2, wherein: resetting means (16) include with protection casing (10) inner wall fixed connection's arc sleeve (20), sliding connection has in arc sleeve (20) and changes board (11) fixed connection's arc telescopic link (21), arc sleeve (20) outer cup joint has spring (22), the both ends of spring (22) respectively with protection casing (10) inner wall with change board (11) fixed connection, the centre of a circle of arc sleeve (20) and arc telescopic link (21) is located the pivot between commentaries on classics board (11) and protection casing (10).
5. The paving device of the permeable asphalt of claim 1, wherein: the poking piece (12) comprises a poking plate (23) one end of which is fixedly connected with the rotating plate (11).
6. The paving device of claim 5, wherein: the improved structure is characterized in that a reinforcing plate (24) is installed between the shifting plate (23) and the rotating plate (11), and two ends of the reinforcing plate (24) are fixedly connected with the rotating plate (11) and the shifting plate (23) respectively.
7. A water-permeable asphalt paving device as defined in claim 3, wherein: one end of the guide rod (18) which is attached to the rotating plate (11) is provided with an arc-shaped end surface (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120834812.1U CN214882781U (en) | 2021-04-23 | 2021-04-23 | Device of mating formation of water permeability pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120834812.1U CN214882781U (en) | 2021-04-23 | 2021-04-23 | Device of mating formation of water permeability pitch |
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| Publication Number | Publication Date |
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| CN214882781U true CN214882781U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120834812.1U Active CN214882781U (en) | 2021-04-23 | 2021-04-23 | Device of mating formation of water permeability pitch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341434A (en) * | 2022-09-05 | 2022-11-15 | 安徽海涵建设工程有限公司 | Filling type large-particle-size thickened water-stable layer paving method and device |
| CN115821690A (en) * | 2022-09-05 | 2023-03-21 | 天元建设集团有限公司 | Asphalt compacting device for road and bridge construction and its application method |
-
2021
- 2021-04-23 CN CN202120834812.1U patent/CN214882781U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341434A (en) * | 2022-09-05 | 2022-11-15 | 安徽海涵建设工程有限公司 | Filling type large-particle-size thickened water-stable layer paving method and device |
| CN115821690A (en) * | 2022-09-05 | 2023-03-21 | 天元建设集团有限公司 | Asphalt compacting device for road and bridge construction and its application method |
| CN115341434B (en) * | 2022-09-05 | 2023-12-01 | 安徽海涵建设工程有限公司 | Filling type large-particle-size thickening water stable layer paving method and device |
| CN115821690B (en) * | 2022-09-05 | 2025-05-09 | 天元建设集团有限公司 | Asphalt compaction device for road and bridge construction and use method thereof |
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