CN113047132A - Equipment for leveling large-span light truss bridge floor - Google Patents
Equipment for leveling large-span light truss bridge floor Download PDFInfo
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- CN113047132A CN113047132A CN201911375833.5A CN201911375833A CN113047132A CN 113047132 A CN113047132 A CN 113047132A CN 201911375833 A CN201911375833 A CN 201911375833A CN 113047132 A CN113047132 A CN 113047132A
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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
- E01C19/4833—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 tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a device for leveling a large-span light truss bridge floor, which comprises: truss body, truss body lower extreme front portion, middle part and rear portion are installed total spiral roller, first total flattening roller and the total flattening roller of second respectively, total spiral roller includes first spiral roller and second spiral roller. The invention adopts truss type suspension walking, the left end and the right end are provided with walking devices, and the whole lifting is realized by adopting the thread transmission action of a second screw rod and a second internal thread sleeve; the paving leveling system consists of a main spiral roll shaft and two main leveling roll shafts. The spiral roll shaft adopts positive and negative spiral and scraping plate distribution, and the materials are stirred again in the spreading process to make the sand and stone materials in the concrete more uniform, so that the surface of the bridge deck shrinks more uniformly after final setting. The two leveling roller shafts adopt rotary excitation to ensure that the density of the bridge deck concrete meets the requirement, and slurry is extracted after accurate leveling to ensure that the flatness of the bridge deck meets the design requirement.
Description
Technical Field
The invention belongs to the technical field of bridge deck construction, and particularly relates to a large-span light truss surface leveling machine.
Background
At present, the construction of bridge highways in China is rapidly developed under the promotion of economy, people have higher and higher requirements on the quality of bridge decks of bridges and the driving comfort, and the construction quality of integral layers of the bridge decks has direct influence on the quality and the service performance of the bridge decks. The bridge deck integrated layer has the functions of protecting the beam body, leveling the bridge deck, improving the stress performance of the bridge deck and the like. Along with the appearance of the large-span light truss evener, the bridge deck integrated layer can be basically constructed by using a full-width pouring construction process, and the construction quality of the bridge deck integrated layer is ensured, so that the important function of the bridge deck integrated layer in an engineering structure is exerted, and the bridge deck integrated layer is very favorable for bridge structure optimization and driving comfort.
In the traditional construction process of the integrated layer, for a bridge with a small construction volume, the surface linear control of the bridge deck integrated layer construction is generally carried out in a mode of welding an elevation band by a steel bar head; for the bridge deck with longer line, a three-roller or two-roller bridge deck slurry lifting leveling machine is generally adopted for construction.
However, because of the limitation of the operation width of the three-roll shaft or two-roll shaft slurry lifting leveling machine, pouring construction is generally carried out on 2-3 construction sections, multiple times of machine moving and walking track dismantling are needed in the process, the construction efficiency is low, construction joints are difficult to process, and cross contamination is serious. Because need divide the section to pour, so the degree of difficulty is great when carrying out linear control, very easily produces the problem of construction dislocation, makes bridge floor asphalt layer pavement thickness inhomogeneous, easily produces quality problems such as crack skinning when the heavy-duty car is walked, and is great to driving travelling comfort influence.
Disclosure of Invention
The object of the present invention is to provide a device for levelling a large-span light truss deck, which solves the above mentioned technical problems of the background art.
The technical scheme for solving the technical problems is as follows: a device for leveling a large-span light truss bridge floor comprises a truss body, wherein a main spiral roller shaft, a first main leveling roller shaft and a second main leveling roller shaft are respectively arranged at the front part, the middle part and the rear part of the lower end of the truss body, the main spiral roller shaft comprises a first spiral roller shaft and a second spiral roller shaft, the first spiral roller shaft and the second spiral roller shaft are mutually symmetrical, the right end of the first spiral roller shaft is fixedly connected with the second spiral roller shaft, the left end, the right end and the middle part of the main spiral roller shaft are respectively and rotatably connected with a lifting damping frame assembly, the upper end of the lifting damping frame assembly is fixedly connected with the truss body, an upper bracket and a lower bracket are respectively arranged at the upper end and the lower end of the truss body, a first roller shaft motor and a second roller shaft motor are respectively arranged at the front side and the rear side of the upper end of the upper, first roller motor is connected with first roller derailleur through first roller belt, and first roller derailleur is connected with total spiral roller left end through first roller chain, second roller motor passes through the second roller belt and is connected with the second roller derailleur, and the second roller derailleur passes through the second roller chain and is connected with the total flattening roller left end of second, and the total flattening roller left end of second passes through the third roller chain and is connected with first total flattening roller left end, both ends all are connected with the running gear that adjustable truss body goes up and down through the link about the truss body, and the running gear lower extreme installs the walking track.
The invention adopts the equipment for leveling the large-span light truss bridge floor, and further comprises the following steps: running gear includes the chassis, both ends symmetry is provided with the walking wheel around the chassis lower extreme, chassis upper end middle part fixedly connected with portal frame, chassis upper end install walking motor and first walking derailleur respectively around portal frame inner chamber department, and chassis lower extreme mid-mounting has second walking derailleur, the walking motor passes through the walking belt and connects first walking derailleur, and first walking derailleur passes through first walking chain and connects second walking derailleur, and second walking derailleur is connected with two walking wheels respectively through two walking chains No. two.
The invention adopts the equipment for leveling the large-span light truss bridge floor, and further comprises the following steps: the middle part of the upper end of the portal frame is penetrated with a second screw rod, the middle part of the outer side of the second screw rod is sleeved with a second internal thread sleeve at the upper end of the portal frame, and the lower end of the second internal thread sleeve is fixedly connected with the upper end of the portal frame. The upper end of the second screw rod is fixedly connected with a second hand wheel above the second internal thread sleeve, the lower end of the second screw rod is rotatably connected with the middle part of the upper end of the connecting frame through a sleeve at the inner cavity of the portal frame, and the front side and the rear side of the connecting frame are respectively in sliding connection with the middle parts of the front side and the rear side in the portal frame.
The invention adopts the equipment for leveling the large-span light truss bridge floor, and further comprises the following steps: the utility model discloses a lifting shock absorption frame, including U type frame, first lead screw, fixed plate fixedly connected with, first lead screw upper end and truss body fixed connection, and the department wears to be equipped with first lead screw in the middle of the U type frame bottom, first lead screw upper end is connected with first hand wheel at U type frame inner chamber middle part, and first lead screw lower extreme has first internal thread sleeve pipe in the meshing of U type frame below, first internal thread sleeve pipe lower extreme passes through fixed plate fixedly connected with mount, bilateral symmetry is connected with the vertical slide bar up around the mount upper end, and runs through U type frame bottom on the slide bar, the slide bar upper end is provided with the stopper in U type frame inner chamber department, and the slide bar outside surface is equipped with the spring between U type frame and mount, mount lower extreme middle part fixedly connected with bearing frame, the bearing frame passes through.
The invention adopts the equipment for leveling the large-span light truss bridge floor, and further comprises the following steps: a first shock pad is arranged between the fixing frame and the fixing plate, and a second shock pad is arranged between the fixing frame and the bearing seat.
The invention adopts the equipment for leveling the large-span light truss bridge floor, and further comprises the following steps: the connecting structure of the first total leveling roller shaft, the second total leveling roller shaft and the truss body is the same as the connecting structure of the total spiral roller shaft and the truss body.
The invention has the beneficial effects that:
1. the invention adopts truss type suspension walking, the left end and the right end are provided with walking devices, and the whole lifting is realized by adopting the thread transmission action of a second screw rod and a second internal thread sleeve; the paving leveling system consists of a main spiral roll shaft and two main leveling roll shafts. The spiral roll shaft adopts positive and negative spiral and scraping plate distribution, and the materials are stirred again in the spreading process to make the sand and stone materials in the concrete more uniform, so that the surface of the bridge deck shrinks more uniformly after final setting. The two leveling roll shafts adopt rotary excitation to ensure that the density of the bridge deck concrete meets the requirement, and slurry is extracted after accurate leveling to ensure that the flatness of the bridge deck meets the design requirement; the invention has better quality control on the integrated layer, avoids the phenomenon of loose and uneven bridge deck, does not need subsequent cleaning and chiseling, saves labor cost and is helpful for paving the subsequent asphalt layer of the bridge deck.
2. In the construction process, the cross section of each bridge is only required to be provided with the rail of the leveling machine once, the rail moves forwards after the construction is finished every time according to the joint construction, and the construction progress is improved by 2-3 times compared with the traditional process; the track is only needed to be arranged along two sides of the integrated layer during construction, after each connection of construction is completed, the track moves forwards, the requirement on materials is low, the track can be used in a turnover manner, the track material can be used in other places after the bridge deck integrated layer is completed, and the material loss can be reduced by a certain amount; compared with the traditional process, the operation difficulty is not greatly improved, the flow is basically equivalent, and the technical requirements of constructors are not improved; in the aspect of the number of construction personnel, the number of constructors is reduced compared with the number of constructors in the traditional process because the workload of track disassembly and the like is reduced.
Drawings
The above and/or other advantages of the invention will become more apparent and more readily appreciated from the following detailed description taken in conjunction with the accompanying drawings, which are given by way of illustration only and not by way of limitation, and in which:
FIG. 1 is a schematic front view of one embodiment of the present invention;
FIG. 2 is a schematic left-side view of a truss body according to an embodiment of the invention;
FIG. 3 is a side view of a lift damper assembly according to one embodiment of the present invention;
fig. 4 is a left side view structural schematic diagram of a walking device according to an embodiment of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. truss body, 2, a total spiral roll shaft, 201, a first spiral roll shaft, 202, a second spiral roll shaft, 3, a first total leveling roll shaft, 4, a second total leveling roll shaft, 5, a lifting shock-absorbing frame component, 501, a U-shaped frame, 502, a first screw rod, 503, a first hand wheel, 504, a first internal thread sleeve, 505, a fixing plate, 506, a first shock-absorbing pad, 507, a fixing frame, 508, a sliding rod, 509, a spring, 510, a limiting block, 511, a bearing seat, 512, a second shock-absorbing pad, 513, a bearing, 6, an upper bracket, 7, a lower bracket, 8, a first roll shaft motor, 9, a first roll shaft belt, 10, a first roll shaft speed changer, 11, a first roll shaft chain, 12, a second roll shaft motor, 13, a second roll shaft belt, 14, a second roll shaft speed changer, 15, a second roll shaft chain, 16, a third roll shaft chain, 17, a connecting frame, 18, a walking device, 1801, The device comprises an underframe, 1802, traveling wheels, 1803, a portal frame, 1804, a traveling motor, 1805, a first traveling speed changer, 1806, a second traveling speed changer, 1807, a traveling belt, 1808, a first traveling chain, 1809, a second traveling chain, 1810, a second screw rod, 1811, a second internal thread bushing, 1812, a second hand wheel, 19 and a traveling track.
Detailed Description
Hereinafter, embodiments of the apparatus for leveling a large-span light truss deck according to the present invention will be described with reference to the accompanying drawings.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
Fig. 1-4 show an apparatus for leveling a large-span light truss deck according to an embodiment of the present invention, which includes: the truss body 1, the truss body 1 is provided with a main spiral roller shaft 2, a first main leveling roller shaft 3 and a second main leveling roller shaft 4 at the front part, the middle part and the rear part of the lower end respectively, the main spiral roller shaft 2 comprises a first spiral roller shaft 201 and a second spiral roller shaft 202, the outer side surface of the first spiral roller shaft 201 is provided with a plurality of transverse scraping plates, the left half part and the second half part of the outer side surface of the first spiral roller shaft 201 are respectively sleeved with symmetrical positive and negative spiral discs, the second spiral roller shaft 202 has the same structure with the first spiral roller shaft 201, the first spiral roller shaft 201 and the second spiral roller shaft 202 are mutually symmetrical, the right end of the first spiral roller shaft 201 is fixedly connected with the second spiral roller shaft 202, the left end, the right end and the middle part of the main spiral roller shaft 2 are both rotatably connected with a lifting shock-absorbing frame component 5, the upper end of the lifting shock-, the upper end of a U-shaped frame 501 is fixedly connected with a truss body 1, a first screw rod 502 penetrates through the middle of the bottom of the U-shaped frame 501, a first hand wheel 503 is connected with the upper end of the first screw rod 502 in the middle of the inner cavity of the U-shaped frame 501, a first internal thread sleeve 504 is meshed below the U-shaped frame 501 at the lower end of the first screw rod 502, a fixing frame 507 is fixedly connected with the lower end of the first internal thread sleeve 504 through a fixing plate 505, a first shock pad 506 is arranged between the fixing frame 507 and the fixing plate 505, vertically upward slide bars 508 are symmetrically connected with the front side and the rear side of the upper end of the fixing frame 507, the upper end of the slide bar 508 penetrates through the bottom of the U-shaped frame 501, a limit block 510 is arranged at the upper end of the U-shaped frame 501 at the inner cavity of the slide bar 508, a spring 509 is sleeved on the outer side surface of the, the bearing blocks 511 are rotatably connected with the main spiral roll shaft 2 through bearings 513, the connecting structure of the first main leveling roll shaft 3, the second main leveling roll shaft 4 and the truss body 1 is the same as that of the main spiral roll shaft 2 and the truss body 1, the upper bracket 6 and the lower bracket 7 are respectively arranged at the upper and lower parts of the left end in the truss body 1, the first roll shaft motor 8 and the second roll shaft motor 12 are respectively arranged at the front and rear sides of the upper end of the upper bracket 6, the first roll shaft speed changer 10 and the second roll shaft speed changer 14 are respectively arranged at the front and rear sides of the upper end of the lower bracket 7, the first roll shaft motor 8 is connected with the first roll shaft speed changer 10 through a first roll shaft belt 9, the first roll shaft speed changer 10 is connected with the left end of the main spiral roll shaft 2 through a first roll shaft chain 11, the second roll shaft motor 12 is connected with the second roll shaft speed changer 14 through a second roll shaft belt 13, the second roll shaft speed, the left end of the second main leveling roller shaft 4 is connected with the left end of the first main leveling roller shaft 3 through a third roller shaft chain 16, the left end and the right end of the truss body 1 are both connected with a traveling device 18 capable of adjusting the lifting of the truss body 1 through a connecting frame 17, the lower end of the traveling device 18 is provided with a traveling track 19, the traveling device 18 comprises a bottom frame 1801, the front end and the rear end of the lower end of the bottom frame 1801 are symmetrically provided with traveling wheels 1802, the middle part of the upper end of the bottom frame 1801 is fixedly connected with a portal frame 1803, the front end and the rear end of the upper end of the bottom frame 1801 at the inner cavity of the portal frame 1803 are respectively provided with a traveling motor 1804 and a first traveling speed changer 1805, the middle part of the lower end of the bottom frame 1801 is provided with a second traveling speed changer 1806, the traveling motor 1804 is connected with the first traveling speed changer 1805 through a traveling belt 1807, the first traveling speed, a second lead screw 1810 penetrates through the middle of the upper end of the portal frame 1803, a second internal thread sleeve 1811 is sleeved on the upper end of the portal frame 1803 at the middle of the outer side of the second lead screw 1810, the lower end of the second internal thread sleeve 1811 is fixedly connected with the upper end of the portal frame 1803, a second hand wheel 1812 is fixedly connected above the second internal thread sleeve 1811 at the upper end of the second lead screw 1810, the lower end of the second lead screw 1810 is rotatably connected with the middle of the upper end of the connecting frame 17 through a sleeve in the inner cavity of the portal frame 1803, and the front side and the rear side of the connecting frame 17 are respectively in sliding connection with the middle of.
The working principle is as follows:
the invention adopts truss type suspension walking, the left and right ends are provided with walking devices 18, and the whole lifting is realized by adopting the screw transmission action of a second lead screw 1810 and a second internal thread sleeve 1811; the paving and leveling system consists of a main spiral roll shaft 2 and two main leveling roll shafts. The spiral roll shaft adopts positive and negative spiral and scraping plate distribution, and the materials are stirred again in the spreading process to make the sand and stone materials in the concrete more uniform, so that the surface of the bridge deck shrinks more uniformly after final setting. The two leveling roller shafts adopt rotary excitation to ensure that the density of the bridge deck concrete meets the requirement, and slurry is extracted after accurate leveling to ensure that the flatness of the bridge deck meets the design requirement.
The invention has larger span, so the middle parts of one main spiral roll shaft 2 and two main leveling roll shafts need to be pre-polished to be high before construction, the linearity is completely matched with the design gradient of the bridge floor, specifically, one end of each roll shaft with a chain is adjusted to the height with proper tightness of the chain by rotating a first hand wheel 503 on a lifting shock absorption frame assembly 5, the end without the chain of each roll shaft is adjusted to be the same as the height of one end with the chain, and then the middle height of each roll shaft is adjusted to be slightly higher than the height of two ends, such as 1cm higher.
The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the invention.
Claims (6)
1. An apparatus for leveling large-span light truss decks, comprising: the truss body, total spiral roller axle, first total flattening roller axle and second total flattening roller axle are installed respectively at the front portion, the middle portion and the rear portion of lower end of the truss body, total spiral roller axle includes first spiral roller axle and second spiral roller axle, first spiral roller axle and second spiral roller axle are mutually symmetrical, and the right end of first spiral roller axle is fixedly connected with second spiral roller axle, the left and right ends and the middle portion of total spiral roller axle are respectively and rotatably connected with a lifting damping frame assembly, the upper end of the lifting damping frame assembly is fixedly connected with the truss body, the upper and lower portions of the left end in the truss body are respectively provided with an upper bracket and a lower bracket, the front and rear sides of the upper end of the upper bracket are respectively provided with a first roller axle motor and a second roller axle motor, the front and rear sides of the upper end of the lower bracket are respectively provided with a first roller axle transmission and a second roller axle transmission, and first roller derailleur is connected with total spiral roller left end through first roller chain, second roller motor passes through the second roller belt and is connected with second roller derailleur, and second roller derailleur passes through the second roller chain and is connected with total flattening roller left end of second, and the total flattening roller left end of second passes through the third roller chain and is connected with first total flattening roller left end, the truss body is controlled both ends and all is connected with the running gear that adjustable truss body goes up and down through the link, and the running gear lower extreme installs the walking track.
2. The apparatus of claim 1, wherein the walking device comprises a bottom frame, walking wheels are symmetrically arranged at the front end and the rear end of the lower end of the bottom frame, a portal frame is fixedly connected to the middle of the upper end of the bottom frame, a walking motor and a first walking transmission are respectively installed at the front end and the rear end of the inner cavity of the portal frame at the upper end of the bottom frame, a second walking transmission is installed at the middle of the lower end of the bottom frame, the walking motor is connected with the first walking transmission through a walking belt, the first walking transmission is connected with the second walking transmission through a first walking chain, and the second walking transmission is respectively connected with the two walking wheels through two second walking chains.
3. The apparatus of claim 2, wherein a second screw rod penetrates through the middle of the upper end of the portal frame, a second internal thread sleeve is sleeved on the upper end of the portal frame at the middle of the outer side of the second screw rod, the lower end of the second internal thread sleeve is fixedly connected with the upper end of the portal frame, a second hand wheel is fixedly connected to the upper end of the second screw rod above the second internal thread sleeve, the lower end of the second screw rod is rotatably connected with the middle of the upper end of the connecting frame through a sleeve in the inner cavity of the portal frame, and the front side and the rear side of the connecting frame are respectively slidably connected with the middle of the front side and the rear side in the portal frame.
4. The apparatus of claim 1, wherein the lifting shock-absorbing frame assembly comprises a U-shaped frame with an upward opening, the upper end of the U-shaped frame is fixedly connected with the truss body, a first lead screw penetrates through the middle of the bottom of the U-shaped frame, a first hand wheel is connected to the upper end of the first lead screw at the middle of the inner cavity of the U-shaped frame, a first inner threaded sleeve is meshed below the lower end of the first lead screw, the lower end of the first inner threaded sleeve is fixedly connected with a fixed frame through a fixed plate, vertically upward slide bars are symmetrically connected to the front and rear sides of the upper end of the fixed frame, the upper end of each slide bar penetrates through the bottom of the U-shaped frame, a limit block is arranged at the inner cavity of the U-shaped frame, a spring is sleeved on the outer side surface of each slide bar between the U-shaped frame and the fixed frame, and a bearing seat, the bearing seat is rotatably connected with the main spiral roll shaft through a bearing.
5. The apparatus for leveling the bridge floor of the large-span light truss according to claim 4, wherein a first shock pad is disposed between the fixed frame and the fixed plate, and a second shock pad is disposed between the fixed frame and the bearing seat.
6. An apparatus for screeding large span light truss bridge decks according to claim 1 wherein said first total screeding roll shaft, second total screeding roll shaft and truss body attachment structure is the same as the attachment structure of the total helical roll shaft and truss body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911375833.5A CN113047132A (en) | 2019-12-27 | 2019-12-27 | Equipment for leveling large-span light truss bridge floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911375833.5A CN113047132A (en) | 2019-12-27 | 2019-12-27 | Equipment for leveling large-span light truss bridge floor |
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| Publication Number | Publication Date |
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| CN113047132A true CN113047132A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911375833.5A Pending CN113047132A (en) | 2019-12-27 | 2019-12-27 | Equipment for leveling large-span light truss bridge floor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201232154Y (en) * | 2008-06-26 | 2009-05-06 | 刘靖 | Suspension rack type high-frequency evener |
| CN104975567A (en) * | 2015-06-25 | 2015-10-14 | 刘玉华 | Full-cross-section concrete bridge deck pavement device and method |
| CN105401520A (en) * | 2015-12-25 | 2016-03-16 | 广东冠粤路桥有限公司 | Integrated layer whole-width construction device for light truss type bridge and construction method of construction device |
| CN207793816U (en) * | 2018-01-16 | 2018-08-31 | 靖江市政建设机械厂 | Steel fiber reinforced concrete cloth warehouse evener |
| CN109057358A (en) * | 2018-09-30 | 2018-12-21 | 中国水利水电第五工程局有限公司 | A kind of roller type panel concrete pressing surface finishing device |
-
2019
- 2019-12-27 CN CN201911375833.5A patent/CN113047132A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201232154Y (en) * | 2008-06-26 | 2009-05-06 | 刘靖 | Suspension rack type high-frequency evener |
| CN104975567A (en) * | 2015-06-25 | 2015-10-14 | 刘玉华 | Full-cross-section concrete bridge deck pavement device and method |
| CN105401520A (en) * | 2015-12-25 | 2016-03-16 | 广东冠粤路桥有限公司 | Integrated layer whole-width construction device for light truss type bridge and construction method of construction device |
| CN207793816U (en) * | 2018-01-16 | 2018-08-31 | 靖江市政建设机械厂 | Steel fiber reinforced concrete cloth warehouse evener |
| CN109057358A (en) * | 2018-09-30 | 2018-12-21 | 中国水利水电第五工程局有限公司 | A kind of roller type panel concrete pressing surface finishing device |
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Application publication date: 20210629 |
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