CN108374309B - Slipform paver with rear-mounted mould mechanism - Google Patents
Slipform paver with rear-mounted mould mechanism Download PDFInfo
- Publication number
- CN108374309B CN108374309B CN201810386473.8A CN201810386473A CN108374309B CN 108374309 B CN108374309 B CN 108374309B CN 201810386473 A CN201810386473 A CN 201810386473A CN 108374309 B CN108374309 B CN 108374309B
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- China
- Prior art keywords
- cross beam
- oil cylinder
- material distribution
- spiral
- forming die
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 63
- 239000003921 oil Substances 0.000 claims description 30
- 238000007790 scraping Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000000346 nonvolatile oil Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- 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
- E01C19/4886—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 for forming in a continuous operation kerbs, gutters, berms, safety kerbs, median barriers or like structures in situ, e.g. by slip-forming, by extrusion
- E01C19/4893—Apparatus designed for railless operation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
A slipform paver with a rear mould mechanism relates to the field of road construction and comprises a host machine, wherein the rear side of the host machine is connected with a rear mould assembly, and the rear mould assembly comprises a rear frame, a spiral material distribution device, a material level control device, a vibration device, a forming mould and two groups of side template devices; the device is characterized in that the rear frame is connected with the host, the spiral material distribution device, the material level control device, the vibrating device and the forming die are sequentially arranged below the rear frame from front to back, the material level control device is connected with the rear frame, the spiral material distribution device and the vibrating device are connected with the material level control device, the forming die is connected with the rear frame, the vibrating device is connected on the forming die, and two groups of side template devices are respectively connected to the left side and the right side of the forming die. The working width of the rear die assembly can be not limited by the width of the traction device of the host, can be wider than the traction device of the host, and can be also not wider than the traction device of the host.
Description
Technical Field
The invention relates to the field of road construction, in particular to a die mechanism for paving a cement concrete pavement.
Background
The slipform paver is generally a middle-set die when paving the road surface, and has a good paving effect due to balanced stress, so that the slipform paver is widely applied. However, in the paving process, the walking driving device is positioned at the outer side of the pre-paving road surface, and a space (usually about 0.5-1 m in width) is needed to be reserved at the roadside edge of the pre-paving road for crawler walking. For road surface engineering without soil shoulders, such as rural roads, rural small roads and the like, the occupied space for crawler travel needs to be repaired manually, so that the construction quality is influenced, and a large amount of manpower is consumed. Restricting the application of the slipform paver in small-sized pavement engineering.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the slipform paver with the rear-mounted die mechanism, which has the advantages of good forming effect, simple structure, light disassembly and assembly, convenient maintenance and high reliability, and comprises a working mechanism which is required to realize various functions for rear-mounted paving.
The purpose of the invention is realized in the following way: the slipform paver with the rear mould mechanism comprises a host machine, wherein the rear side of the host machine is connected with a rear mould assembly, and the rear mould assembly comprises a rear frame, a spiral material distribution device, a material level control device, a vibration device, a forming mould and two groups of side mould plate devices; the device is characterized in that the rear frame is connected with the host, the spiral material distribution device, the material level control device, the vibrating device and the forming die are sequentially arranged below the rear frame from front to back, the material level control device is connected with the rear frame, the spiral material distribution device and the vibrating device are connected with the material level control device, the forming die is connected with the rear frame, the vibrating device is connected on the forming die, and two groups of side template devices are respectively connected to the left side and the right side of the forming die.
The material level control device, the spiral material distribution device, the vibration device and the forming die which are necessary for the paving of the rear die are arranged in a frame, and the machine comprises a working mechanism which is necessary for the paving of the rear die and has various functions, such as material distribution, vibration slurry extraction, extrusion forming and the like. The rear die assembly can be hung and installed behind a main machine frame of the slipform paver as a paving unit module and is positioned behind a main machine traction device, and the traction device of the main machine can adopt a crawler or a tire. The working width of the rear die assembly can be not limited by the width of the traction device of the host, can be wider than the traction device of the host, and can be also not wider than the traction device of the host.
The rear frame comprises an upper frame, a front cross beam and a rear cross beam, wherein the front end of the upper frame is connected with a host machine, the front cross beam and the rear cross beam are connected with the upper frame, the length directions of the front cross beam and the rear cross beam are consistent with the width direction of the upper frame, the front cross beam and the rear cross beam are transversely arranged, and the front cross beam is positioned on the front side of the rear cross beam.
The material level control device comprises a material distribution bracket, a scraping plate and a first lifting oil cylinder, wherein the material distribution bracket is connected to a front cross beam of a rear frame, the first lifting oil cylinder is vertically arranged, a cylinder barrel of the first lifting oil cylinder is connected to the material distribution bracket, and a piston rod of the first lifting oil cylinder is connected with the scraping plate. The height of the scraping plate is adjusted through the first lifting oil cylinder during operation, so that the height of the cement mixture material level in front of the forming die is controlled.
According to the invention, the first slideway is connected to the cloth support, the first vertical guide post is connected to the scraping plate, and the first guide post slides up and down in the first slideway. The first slideway and the first guide post limit the freedom degree of the scraping plate so that the scraping plate can only move up and down within a certain range.
The spiral material distribution device comprises a driving device, a material distribution spiral blade and a spiral supporting shaft, wherein the spiral supporting shaft is transversely supported on a material distribution bracket, one end of the spiral supporting shaft is connected with the driving device, the material distribution spiral blade is connected to the spiral supporting shaft, and the material distribution spiral blade is positioned on the front side of a scraping plate. The cloth screw can rotate forward and backward during operation, and the function of the cloth screw is to uniformly distribute cement mixture in front of the die mechanism within the spreading width range during operation.
The vibrating device comprises a vibrating rod support and a vibrating rod, wherein the vibrating rod support is connected with a cloth support, and the vibrating rod is arranged on the vibrating rod support. The vibration device vibrates at a proper position to obtain a satisfactory compacting effect.
The forming die comprises a box body, a bottom plate and an adjusting screw, wherein the box body is connected with a rear cross beam of the rear frame, the bottom plate is arranged below the box body, a fixed support is arranged on the box body, the upper end of the adjusting screw is connected with the fixed support through a nut, and the lower end of the adjusting screw is connected with the bottom plate through a pin shaft. The height of the bottom plate is changed by rotating the position of the nut on the screw. The forming die is used for extruding and forming the cement mixture which is compacted by vibration by matching with left and right side template devices.
The vibrating device comprises a motor support, a motor, a driving wheel, a connecting rod, a push rod transversely arranged and a rammer transversely arranged, wherein the motor support is connected to a box body of a forming die, the motor is connected to the motor support and the driving wheel, one end of the connecting rod is hinged with the driving wheel, and the other end of the connecting rod is hinged with the push rod; the forming die comprises a forming die body, a plurality of rocker arm supports, a plurality of vertical telescopic plates, a plurality of first connecting arms, a plurality of second connecting arms, a plurality of vertical telescopic plates and a plurality of rammers, wherein the plurality of rocker arm supports are further connected to the forming die body, a longitudinal rotary shaft is respectively supported in each rocker arm support, one end of each rotary shaft is connected with a first connecting arm, the other end of each first connecting arm is hinged with a push rod, the other end of each rotary shaft is connected with a second connecting arm, each second connecting arm is hinged with a vertical telescopic plate, and the lower end of each telescopic plate is connected with a rammer. When the connecting rod is in operation, the motor enables the driving wheel to rotate and drives the connecting rod to move, and as the two ends of the connecting rod are limited by the movement track of the driving wheel and the first connecting arm, the connecting rod is driven by the driving wheel to do reciprocating movement. The connecting rod pushes the first connecting arm and the push rod to do reciprocating motion synchronously, the rotating shaft is driven to rotate, and the rotating shaft drives the second connecting arm to change the angle, so that the expansion plate and the rammer are driven to tamper up and down.
The telescopic plate comprises a connecting plate and an adjusting plate, wherein a plurality of adjusting holes are formed in the adjusting plate along the height direction, and the adjusting plate is connected with the connecting plate through bolts penetrating through the adjusting holes. The purpose of controlling the thickness of the slurry layer on the road surface can be achieved by adjusting the position of the rammer board relative to the bottom plate of the mould through the adjusting plate.
The side template device comprises a fixed side plate, a sliding side plate, a second slideway and a second lifting oil cylinder which are arranged on a box body of a forming die; the sliding side plate is movably arranged on the outer side of the fixed side plate through a second lifting oil cylinder; the upper end of the second lifting oil cylinder is hinged with the fixed side plate through a pin shaft and a fixed oil cylinder seat, and one end of a piston rod of the second lifting oil cylinder is connected with the sliding side plate through a pin shaft and a movable oil cylinder seat; the upper end of the second slideway is hinged with the fixed side plate through a slideway support and a pin shaft; the sliding side plate is provided with a second guide column, and the upper end of the second guide column is arranged in a second slideway in a penetrating way; limiting seats are respectively arranged on the fixed side plates on two sides of the second slide way, and limiting pins for fixing the second slide way are arranged in the limiting seats. The side template device is used for extruding and forming the cement mixture which is compacted by vibration by matching with a forming die. The slide way is fixed with the fixed side plate through the installation limiting pin, and the sliding side plate can only move along the slide way direction due to the fact that the guide post is arranged in the slide way, and the sliding side plate is made to slide tightly against the ground through the action of the control oil cylinder, so that the effect of preventing cement paste from leaking is achieved. When the mold is cleaned, the limiting pin is pulled out, the second lifting oil cylinder is operated to lift the side plate, the sliding side plate can be lifted and turned around the pin shaft of the slideway, and the side mold and cement residues on the forming mold are cleaned and cleaned conveniently.
The working principle of the invention is as follows:
the invention comprises a complete set of components capable of completing the functions of material distribution, material feeding control, vibration, molding and the like. All the components are installed into a whole to form a paving unit which can be used for a slipform paver to finish paving. A spiral material distributing device is arranged in front of the device for distributing the cement mixture uniformly; the material level control device is arranged behind the spiral material distribution device, and the upper and lower positions of the scraping plate can be changed to control the material level of the feeding material. The material level control device is followed by a vibrating area, and inserted vibrating bars are arranged according to the requirement, so that the effect of exhausting and compacting the cement mixture is achieved. The left and right templates are used for controlling the molding quality of the paved cement pavement.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a rear mold assembly.
Fig. 3 is a left side perspective view of fig. 2.
Fig. 4 is a right side perspective view of fig. 2.
Fig. 5 is a front perspective view of the connection of the screw distributor with the level controller.
Fig. 6 is a rear perspective view of the connection of the screw distributor with the level controller.
Fig. 7 is a front perspective view of the connection of the vibrating device to the forming die.
Fig. 8 is a schematic view of the forming mold removed in fig. 7.
Fig. 9 is a rear perspective view of the connection of the vibrating device to the forming die.
Fig. 10 is a schematic view of the removed molding die of fig. 9.
Fig. 11 is a front view of the vibrating device.
Fig. 12 is a schematic view of the construction of the sideform apparatus.
Fig. 13 is a schematic view showing a lifting state structure of the sideform apparatus.
Fig. 14 is a schematic diagram showing a flip state structure of the sideform apparatus.
Detailed Description
As shown in fig. 1-14, the slipform paver with the rear mould mechanism comprises a host machine 2, wherein the rear side of the host machine 2 is connected with a rear mould assembly 1, and the rear mould assembly 1 comprises a rear frame 4, a spiral distributing device 5, a material level control device 6, a vibrating device 7, a vibrating device 8, a forming mould 9 and two groups of side mould plate devices 3. The rear frame 4 is connected with the host machine 2, and the spiral material distributing device 5, the material level control device 6, the vibrating device 7, the vibrating device 8 and the forming die 9 are sequentially arranged below the rear frame 4 from front to back.
The rear frame 4 comprises an upper frame 22, a front cross beam 23 and a rear cross beam 21, wherein the front end of the upper frame 22 is connected with the host machine 2, the front cross beam 23 and the rear cross beam 21 are connected with the upper frame 22, the length directions of the front cross beam 23 and the rear cross beam 21 are consistent with the width direction of the upper frame 22, the front cross beam 23 is arranged transversely, and the front cross beam 23 is positioned on the front side of the rear cross beam 21.
The material level control device 6 comprises a material distribution bracket 18, a scraping plate 16 and a first lifting oil cylinder 17, wherein the material distribution bracket 18 is connected to a front cross beam 23 of the rear frame 4, the first lifting oil cylinder 17 is vertically arranged, a cylinder barrel of the first lifting oil cylinder 17 is connected to the material distribution bracket 18, and a piston rod of the first lifting oil cylinder 17 is connected with the scraping plate 16. The first slideway 20 is connected to the cloth support 18, the first vertical guide post 19 is connected to the scraping plate 16, and the first guide post 19 slides up and down in the first slideway 20.
The spiral material distributing device 7 comprises a driving device 13, a material distributing spiral blade 14 and a spiral supporting shaft 15, wherein the spiral supporting shaft 15 is transversely supported on a material distributing bracket 18, one end of the spiral supporting shaft 15 is connected with the driving device 13, the material distributing spiral blade 14 is connected to the spiral supporting shaft 15, and the material distributing spiral blade 14 is positioned on the front side of a scraping plate 16.
The vibrating device 7 comprises a vibrating rod support 25 and a vibrating rod 24, wherein the vibrating rod support 25 is connected with the cloth support 18, and the vibrating rod 24 is arranged on the vibrating rod support 25.
The forming die 9 comprises a box 11, a bottom plate 10 and an adjusting screw 12, wherein the box 11 is connected with a rear cross beam 21 of the rear frame 4, the bottom plate 10 is arranged below the box 11, a fixed support 26 is arranged on the box 11, the upper end of the adjusting screw 12 is connected with the fixed support 26 through a nut, and the lower end of the adjusting screw 12 is connected with the bottom plate 10 through a pin shaft 27.
The vibrating device 8 comprises a motor support 8-7, a motor 8-6, a driving wheel 8-5, a connecting rod 8-10, a push rod 8-8 transversely arranged and a rammer plate 8-12 transversely arranged, wherein the motor support 8-7 is connected to a box body 11 of the forming die 9, the motor 8-6 is connected to the motor support 8-7 and the driving wheel 8-5, one end of the connecting rod 8-10 is hinged with the driving wheel 8-5, and the other end of the connecting rod 8-10 is hinged with the push rod 8-8. The box body 11 of the forming die 9 is further connected with two rocker arm supports 8-3, each rocker arm support 8-3 is respectively provided with a rotating shaft 8-14 which is longitudinally arranged, one end of each rotating shaft 8-14 is connected with a first connecting arm 8-4, the other end of each first connecting arm 8-4 is hinged with a push rod 8-8, the other end of each rotating shaft 8-14 is connected with a second connecting arm 8-15, each second connecting arm 8-15 is hinged with a connecting plate 8-9 which is vertically arranged, the lower end of each connecting plate 8-9 is respectively connected with a regulating plate 8-11 which is vertically arranged, a plurality of regulating holes 8-13 are formed in the regulating plates 8-11 along the height direction, the regulating plates 8-11 are connected with the connecting plates 8-9 through bolts penetrating through the regulating holes 8-13, and the lower end of each regulating plate 8-11 is connected with the ramming plate 8-12.
The two groups of side template devices 3 are respectively arranged at the left side and the right side of the forming die 9, and each side template device 3 comprises a fixed side plate 3-1, a sliding side plate 3-2, a second slideway 3-3 and a second lifting oil cylinder 3-4 which are arranged on a box body 11 of the forming die 9; the fixed side plate 3-1 is connected with a box body 11 of the forming die 9, and the sliding side plate 3-2 is movably arranged at the outer side of the fixed side plate 3-1 through a second lifting oil cylinder 3-4; the upper end of the second lifting oil cylinder 3-4 is hinged with the fixed side plate 3-1 through a pin shaft and a fixed oil cylinder seat 3-5, and one end of a piston rod of the second lifting oil cylinder 3-4 is connected with the sliding side plate 3-2 through a pin shaft and a movable oil cylinder seat 3-6; the upper end of the second slideway 3-3 is hinged with the fixed side plate 3-1 through a slideway support 3-7 and a pin shaft; the sliding side plate 3-2 is provided with a second guide post 3-8, and the upper end of the second guide post 3-8 is arranged in the second slideway 3-3 in a penetrating way; limiting seats 3-9 are respectively arranged on the fixed side plates 3-1 on two sides of the second slide way 3-3, and limiting pins 3-10 used for fixing the second slide way 3-3 are arranged in the limiting seats 3-9.
Claims (5)
1. The utility model provides a slipform paver with rearmounted mould mechanism, includes host computer, its characterized in that: the rear side of the host machine is connected with a rear mould assembly, and the rear mould assembly comprises a rear frame, a spiral material distribution device, a material level control device, a vibration device, a forming mould and two groups of side template devices;
the spiral material distribution device, the material level control device, the vibrating device and the forming die are sequentially arranged below the rear frame from front to back, the material level control device is connected with the rear frame, the spiral material distribution device and the vibrating device are both connected with the material level control device, the forming die is connected with the rear frame, the vibrating device is connected to the forming die, and two groups of side template devices are respectively connected to the left side and the right side of the forming die;
the vibrating device comprises a motor support, a motor, a driving wheel, a connecting rod, a push rod transversely arranged and a rammer transversely arranged, wherein the motor support is connected to a box body of the forming die, the motor is connected to the motor support and the driving wheel, one end of the connecting rod is hinged with the driving wheel, and the other end of the connecting rod is hinged with the push rod; the box body of the forming die is also connected with a plurality of rocker arm supports, each rocker arm support is internally provided with a longitudinally arranged rotating shaft, one end of each rotating shaft is connected with a first connecting arm, the other end of each first connecting arm is hinged with a push rod, the other end of each rotating shaft is connected with a second connecting arm, each second connecting arm is hinged with a vertically arranged expansion plate, and the lower end of each expansion plate is connected with a rammer;
the side template device comprises a fixed side plate, a sliding side plate, a second slideway and a second lifting oil cylinder which are arranged on the box body of the forming die; the sliding side plate is movably arranged on the outer side of the fixed side plate through a second lifting oil cylinder; the upper end of the second lifting oil cylinder is hinged with the fixed side plate through a pin shaft and a fixed oil cylinder seat, and one end of a piston rod of the second lifting oil cylinder is connected with the sliding side plate through a pin shaft and a movable oil cylinder seat; the upper end of the second slideway is hinged with the fixed side plate through a slideway support and a pin shaft; the sliding side plate is provided with a second guide column, and the upper end of the second guide column is arranged in a second slideway in a penetrating way; limiting seats are respectively arranged on the fixed side plates on two sides of the second slide way, and limiting pins for fixing the second slide way are arranged in the limiting seats.
2. The slipform paver with a rear-die mechanism as claimed in claim 1, wherein: the rear frame comprises an upper frame, a front cross beam and a rear cross beam, the front end of the upper frame is connected with the host machine, the front cross beam and the rear cross beam are connected with the upper frame, the length directions of the front cross beam and the rear cross beam are consistent with the width direction of the upper frame, the front cross beam and the rear cross beam are transversely arranged, and the front cross beam is located on the front side of the rear cross beam.
3. The slipform paver with a rear-die mechanism as claimed in claim 2, wherein: the material level control device comprises a material distribution bracket, a scraping plate and a first lifting oil cylinder, wherein the material distribution bracket is connected to a front cross beam of a rear frame, the first lifting oil cylinder is vertically arranged, a cylinder barrel of the first lifting oil cylinder is connected to the material distribution bracket, and a piston rod of the first lifting oil cylinder is connected with the scraping plate.
4. A slipform paver having a rear-die mechanism as claimed in claim 3, wherein: the cloth support is connected with a first slideway, the scraping plate is connected with a vertical first guide column, and the first guide column slides up and down in the first slideway.
5. A slipform paver having a rear-die mechanism as claimed in claim 3, wherein: the spiral material distribution device comprises a driving device, a material distribution spiral blade and a spiral supporting shaft, wherein the spiral supporting shaft is transversely supported on the material distribution support, one end of the spiral supporting shaft is connected with the driving device, the material distribution spiral blade is connected to the spiral supporting shaft, and the material distribution spiral blade is located on the front side of the scraping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386473.8A CN108374309B (en) | 2018-04-26 | 2018-04-26 | Slipform paver with rear-mounted mould mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386473.8A CN108374309B (en) | 2018-04-26 | 2018-04-26 | Slipform paver with rear-mounted mould mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108374309A CN108374309A (en) | 2018-08-07 |
| CN108374309B true CN108374309B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810386473.8A Active CN108374309B (en) | 2018-04-26 | 2018-04-26 | Slipform paver with rear-mounted mould mechanism |
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| Country | Link |
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| CN (1) | CN108374309B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295836B (en) * | 2018-11-15 | 2024-10-22 | 石家庄辰启科技有限公司 | Cement concrete vibrating slurry leveling device |
| CN109577148B (en) * | 2019-01-15 | 2024-05-03 | 台州市泰辉市政工程有限公司 | Synchronous three-dimensional vibration leveling device for cement concrete |
| CN111218883B (en) * | 2020-04-01 | 2024-11-26 | 江苏四明工程机械有限公司 | Zero-gap post-mold slipform paving machine |
| CN113089432B (en) * | 2021-04-22 | 2022-12-09 | 刘全 | Road shoulder slip form |
| CN114934446B (en) * | 2022-06-01 | 2024-06-14 | 中铁广州工程局集团第三工程有限公司 | A high-precision integrated casting template for the short side of a slag retaining wall and a construction method thereof |
| CN116377806B (en) * | 2023-05-05 | 2025-09-23 | 广西交科集团有限公司 | A high-speed paver |
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| FR2697037A1 (en) * | 1992-10-16 | 1994-04-22 | Applic Derives Asphalte | Self-propelled finisher for making good roads after trench excavation - includes rear mounted sliding spreader extending beyond chassis sides, two strip width sliding pads, and conveyor belts between hopper and spreader |
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| FR2697037A1 (en) * | 1992-10-16 | 1994-04-22 | Applic Derives Asphalte | Self-propelled finisher for making good roads after trench excavation - includes rear mounted sliding spreader extending beyond chassis sides, two strip width sliding pads, and conveyor belts between hopper and spreader |
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| Publication number | Publication date |
|---|---|
| CN108374309A (en) | 2018-08-07 |
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