CN106149532A - Double-layer prestressed screed - Google Patents
Double-layer prestressed screed Download PDFInfo
- Publication number
- CN106149532A CN106149532A CN201510183632.0A CN201510183632A CN106149532A CN 106149532 A CN106149532 A CN 106149532A CN 201510183632 A CN201510183632 A CN 201510183632A CN 106149532 A CN106149532 A CN 106149532A
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- CN
- China
- Prior art keywords
- support bar
- side support
- screed
- inner tube
- midfoot
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Abstract
The present invention provides double-layer prestressed screed, preliminary spreading plate is fixedly linked with paver front end by attachment means, it is rotationally connected axle and is located at paver front end, rotation bar is located at and is rotationally connected on axle, preliminary spreading plate is located on rotation bar, screed main body passes on left Left-side support bar and the first screed oil cylinder is connected, it is connected by Right side support bar and the second screed oil cylinder on the right side of screed main body, 3rd screed oil cylinder is connected in the middle part of screed main body by midfoot support bar, Left-side support bar inner tube and Left-side support bar outer tube can axially opposed slide, Left-side support bar inner tube is provided with Left-side support bar elastic device, connect on Left-side support bar elastic device top and have Left-side support bar button, radially distributed on Left-side support bar outer tube have the hole, Left-side support bar location coordinated with Left-side support bar button.Ensure that normal screed flat configuration during paving operation, be effectively improved the spreading evenness on road surface.
Description
Technical field
The present invention relates to job engineering field, road surface, more particularly, it relates to a kind of double-layer prestressed screed.
Background technology
Screed, as the core work device of asphalt-spreader, directly decides spreading quality and the serviceability of machine.
At present, domestic and international ironing plate of asphalt spreader all uses the rectangular box structure of Plate Welding, and bottom has been bolted
Wear-resisting bottom plate.When pave hot-mix asphalt mixture time, paver screed base plate will be heated to the high-temperature of more than 130 DEG C,
And screed casing upper part is in ambient temperature conditions.Owing to screed body structure upper and lower temperature difference is relatively big, it is in high temperature
The swell increment of lower part screed much larger than being in the swell increment of upper part screed of low temperature, thus cause whole ironing
Plate two ends occur upwarping phenomenon, thus cause the decline of paving concrete pavement flatness, have had a strong impact on the quality of construction of the highway.
In recent years, big width paver and modified asphalt mixture are applied in Expressway Construction, and user
More and more higher to the flatness requirement of road construction.Increase and modified asphalt mixture for paver paving width
Deng the construction of high temperature material spreader, the heat distortion amount at screed two ends all can be caused to significantly increase.Existing screed heat becomes
Shape suppression way, mainly reserves heat distortion amount by screed casing and compensates thermal deformation, and this needs to change ironing
The physical dimension of plate, and small-sized due to reserved heat distortion amount, its processing and installation difficulty are the biggest.And it is current
Most of ironing plate of asphalt spreader do not take effective thermal deformation suppressing way, and work progress screed is heated and is deformed
Amount, has had a strong impact on the operation quality of paving concrete pavement.
Summary of the invention
Instant invention overcomes deficiency of the prior art, it is provided that a kind of double-layer prestressed screed.
The purpose of the present invention is achieved by following technical proposals.
Double-layer prestressed screed, including preliminary spreading plate, screed main body, the first screed oil cylinder, the second screed
Oil cylinder and the 3rd screed oil cylinder, described preliminary spreading plate is fixedly linked with paver front end by attachment means, described
Attachment means includes being rotationally connected axle and rotates bar, described in be rotationally connected axle and be arranged on the interposition of described paver front end
Put, described rotation bar be arranged on described in be rotationally connected on axle, described rotation bar can be carried out around the described axle that is rotationally connected
180 ° of rotations, described preliminary spreading plate is arranged on described rotation bar, and described screed main body passes on left Left-side support bar
It is connected with described first screed oil cylinder, by Right side support bar and described second ironing leaf fat on the right side of described screed main body
Cylinder is connected, and described 3rd screed oil cylinder is connected with the middle part of described screed main body by midfoot support bar, described left side
Support bar includes Left-side support bar inner tube and the Left-side support bar outer tube being set in outside described Left-side support bar inner tube, a described left side
Collateral strut inner tube and described Left-side support bar outer tube can axially opposed slide, and arrange in described Left-side support bar inner tube
Having Left-side support bar elastic device, connecting on described Left-side support bar elastic device top has Left-side support bar button, described
Radially distributed on Left-side support bar outer tube have the Left-side support bar coordinated with described Left-side support bar button to position hole, described
Right side support bar includes Right side support bar inner tube and the Right side support bar outer tube being set in outside described Right side support bar inner tube, institute
State Right side support bar inner tube and described Right side support bar outer tube can axially opposed slide, in described Right side support bar inner tube
Being provided with Right side support bar elastic device, connecting on described Right side support bar elastic device top has Right side support bar button,
Radially distributed on described Right side support bar outer tube have the hole, Right side support bar location coordinated with described Right side support bar button.
Described Left-side support bar elastic device and described Right side support bar elastic device all use V-type shell fragment.
Described midfoot support bar includes midfoot support bar inner tube and the midfoot support bar being set in outside described midfoot support bar inner tube
Outer tube, described midfoot support bar inner tube and described midfoot support bar outer tube can axially opposed slide, described midfoot support
Being provided with midfoot support bar elastic device in bar inner tube, connecting on described midfoot support bar elastic device top has midfoot support
Bar button, radially distributed on described midfoot support bar outer tube have the midfoot support bar coordinated with described midfoot support bar button
Hole, location, described midfoot support bar elastic device uses V-type shell fragment.
The described axle that is rotationally connected is arranged on described paver front end uniformly, described in be rotationally connected the quantity of axle be 5-9,
The quantity of described rotation bar is 5-9.
The invention have the benefit that Left-side support bar, midfoot support bar and Right side support bar simple in construction, assembling effect
Rate is high, fixed form is simple but highly reliable, it is little to take up room, with low cost, simultaneously because paver is at work progress
Screed is heated the amount of being deformed, and has had a strong impact on the operation quality of paving concrete pavement, Left-side support bar, midfoot support
Bar and the setting of Right side support bar, adjust screed main body the left and right sides Left-side support bar, midfoot support bar and
The effect of Right side support bar is lower symmetrical gradually along the downward-sloping deformation of normal direction of screed bottom surface, compensates ironing with this
What plate work was heated is bent upwards deformation, thus normal screed flat configuration when ensure that paving operation, effectively carry
The high spreading evenness on road surface；The setting of preliminary spreading plate so that before paver carries out paving operation, can make
Will carry out preliminary paving down to the paveio(u)r on road surface with preliminary spreading plate, thus save workman and this is paved the way
Material carries out the process of artificial preliminary shaping, has saved time and manual labor, has simply used a machine and i.e. can reach
Needed artificial and machine to work the work that just can complete in the past simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of screed in the present invention；
Fig. 2 is the structural representation of Left-side support bar in the present invention；
Fig. 3 is the structural representation of preliminary spreading plate in the present invention.
In figure: 1 is screed main body, 2 is the first screed oil cylinder, and 3 is the second screed oil cylinder, and 4 is the 3rd ironing
Leaf fat cylinder, 5 is Left-side support bar, and 6 is Right side support bar, and 7 is midfoot support bar, and 8 is Left-side support bar inner tube, 9
For Left-side support bar outer tube, 10 position hole for Left-side support bar, and 11 is Left-side support bar button, and 12 is Left-side support bar bullet
Property device, 13 is preliminary spreading plate, and 14 is paver front end, and 15 for being rotationally connected axle, 16 for rotate bar.
Detailed description of the invention
Below by specific embodiment, technical scheme is further described.
As shown in Figure 1 to Figure 3, wherein, 1 is screed main body, and 2 is the first screed oil cylinder, and 3 is the second screed
Oil cylinder, 4 is the 3rd screed oil cylinder, and 5 is Left-side support bar, and 6 is Right side support bar, and 7 is midfoot support bar, and 8 is left
Collateral strut inner tube, 9 is Left-side support bar outer tube, and 10 position hole for Left-side support bar, and 11 is Left-side support bar button,
12 is Left-side support bar elastic device, and 13 is preliminary spreading plate, and 14 is paver front end, and 15 for being rotationally connected axle, 16
For rotating bar.
Double-layer prestressed screed, including preliminary spreading plate 13, screed main body the 1, first screed oil cylinder 2, second presses
Flat board oil cylinder 3 and the 3rd screed oil cylinder 4, preliminary spreading plate 13 fixes phase by attachment means with paver front end 14
Even, attachment means includes being rotationally connected axle 15 and rotating bar 16, is rotationally connected axle 15 and is arranged on paver front end 14
Centre position on, rotate bar 16 and be arranged on and be rotationally connected on axle 15, rotating bar 16 can be around being rotationally connected axle 15
Carrying out 180 ° of rotations, preliminary spreading plate 13 is arranged on rotation bar 16, and screed main body 1 passes on left Left-side support bar
5 are connected with the first screed oil cylinder 2, by Right side support bar 6 and the second screed oil cylinder 3 on the right side of screed main body 1
Being connected, the 3rd screed oil cylinder 4 is connected with the middle part of screed main body 1 by midfoot support bar 7, Left-side support bar 5
Including Left-side support bar inner tube 8 and the Left-side support bar outer tube 9 being set in outside Left-side support bar inner tube 8, in Left-side support bar
Pipe 8 and Left-side support bar outer tube 9 can axially opposed slide, and are provided with Left-side support bar in Left-side support bar inner tube 8
Elastic device 12, connects on Left-side support bar elastic device 12 top and has Left-side support bar button 11, outside Left-side support bar
Radially distributed on pipe 9 have the hole 10, Left-side support bar location coordinated with Left-side support bar button 11, and Right side support bar includes
Right side support bar inner tube and the Right side support bar outer tube being set in outside Right side support bar inner tube, Right side support bar inner tube and right side
Support bar outer tube can axially opposed slide, and is provided with Right side support bar elastic device, on the right side in Right side support bar inner tube
Collateral strut elastic device top connects Right side support bar button, and radially distributed on Right side support bar outer tube have and right side
The hole, Right side support bar location that support bar button coordinates.
Left-side support bar elastic device 12 and Right side support bar elastic device all use V-type shell fragment.
Midfoot support bar includes midfoot support bar inner tube and the midfoot support bar outer tube being set in outside midfoot support bar inner tube, in
Portion's support bar inner tube and midfoot support bar outer tube can axially opposed slide, and are provided with middle part in midfoot support bar inner tube
Strut elastic device, connects on midfoot support bar elastic device top and has midfoot support bar button, on midfoot support bar outer tube
Radially distributed have the hole, midfoot support bar location coordinated with midfoot support bar button, and midfoot support bar elastic device uses V
Type shell fragment.
Being rotationally connected axle 15 and be arranged on paver front end 14 uniformly, the quantity being rotationally connected axle 15 is 5-9, rotates
The quantity of bar 16 is 5-9.
Left-side support bar, midfoot support bar and Right side support bar simple in construction, efficiency of assembling is high, fixed form simple but
Highly reliable, take up room little, with low cost, simultaneously because paver is heated the amount of being deformed at work progress screed,
Have a strong impact on the operation quality of paving concrete pavement, Left-side support bar, midfoot support bar and the setting of Right side support bar,
Adjust the left and right sides of screed main body under the effect of Left-side support bar, midfoot support bar and Right side support bar symmetrical by
Gradually along the downward-sloping deformation of normal direction of screed bottom surface, with this compensate screed work be heated be bent upwards deformation,
Thus normal screed flat configuration when ensure that paving operation, it is effectively improved the spreading evenness on road surface；Tentatively
The setting of spreading plate so that before paver carries out paving operation, it is possible to use preliminary spreading plate is by down to road surface
On paveio(u)r carry out preliminary paving, thus save workman and this paveio(u)r carried out the process of artificial preliminary shaping,
Save time and manual labor, simply used and before a machine i.e. can reach, need artificial and machine to work just simultaneously
The work that can complete.
Above one embodiment of the present of invention is described in detail, but described content has been only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement etc.,
Within all should still belonging to the patent covering scope of the present invention.
Claims (4)
- The most double-layer prestressed screed, it is characterised in that: include preliminary spreading plate, screed main body, the first ironing leaf fat Cylinder, the second screed oil cylinder and the 3rd screed oil cylinder, described preliminary spreading plate is by attachment means and paver front end Being fixedly linked, described attachment means includes being rotationally connected axle and rotates bar, described in be rotationally connected axle be arranged on described in pave On the centre position of machine front end, described rotation bar be arranged on described in be rotationally connected on axle, described rotation bar can be around described Being rotationally connected axle and carry out 180 ° of rotations, described preliminary spreading plate is arranged on described rotation bar, and described screed main body is left Side is connected with described first screed oil cylinder by Left-side support bar, on the right side of described screed main body by Right side support bar and Described second screed oil cylinder is connected, and described 3rd screed oil cylinder is by midfoot support bar and described screed main body Portion is connected, and described Left-side support bar includes that Left-side support bar inner tube and the left side being set in outside described Left-side support bar inner tube are propped up Strut outer tube, described Left-side support bar inner tube and described Left-side support bar outer tube can axially opposed slide, described left side Being provided with Left-side support bar elastic device in support bar inner tube, connecting on described Left-side support bar elastic device top has left side Support bar button, radially distributed on described Left-side support bar outer tube have the left side coordinated with described Left-side support bar button to prop up Hole, strut location, described Right side support bar includes Right side support bar inner tube and the right side being set in outside described Right side support bar inner tube Collateral strut outer tube, described Right side support bar inner tube and described Right side support bar outer tube can axially opposed slide, described Being provided with Right side support bar elastic device in Right side support bar inner tube, connecting on described Right side support bar elastic device top has Right side support bar button, radially distributed on described Right side support bar outer tube have the right side coordinated with described Right side support bar button Hole, collateral strut location.
- Double-layer prestressed screed the most according to claim 1, it is characterised in that: described Left-side support bar elasticity fills Put and described Right side support bar elastic device all uses V-type shell fragment.
- Double-layer prestressed screed the most according to claim 1, it is characterised in that: during described midfoot support bar includes Portion's support bar inner tube and the midfoot support bar outer tube being set in outside described midfoot support bar inner tube, described midfoot support bar inner tube Axially opposed can slide with described midfoot support bar outer tube, described midfoot support bar inner tube is provided with midfoot support bar Elastic device, connects on described midfoot support bar elastic device top and has midfoot support bar button, outside described midfoot support bar Radially distributed on pipe have the hole, midfoot support bar location coordinated with described midfoot support bar button, described midfoot support bar bullet Property device use V-type shell fragment.
- Double-layer prestressed screed the most according to claim 1, it is characterised in that be rotationally connected axle described in: uniform Be arranged on described paver front end, described in be rotationally connected the quantity of axle be 5-9, the quantity of described rotation bar is 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183632.0A CN106149532A (en) | 2015-04-16 | 2015-04-16 | Double-layer prestressed screed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183632.0A CN106149532A (en) | 2015-04-16 | 2015-04-16 | Double-layer prestressed screed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106149532A true CN106149532A (en) | 2016-11-23 |
Family
ID=58058394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183632.0A Pending CN106149532A (en) | 2015-04-16 | 2015-04-16 | Double-layer prestressed screed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106149532A (en) |
-
2015
- 2015-04-16 CN CN201510183632.0A patent/CN106149532A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |