CN102787545A - Ironing plate and spreading machine - Google Patents
Ironing plate and spreading machine Download PDFInfo
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- CN102787545A CN102787545A CN2012102906295A CN201210290629A CN102787545A CN 102787545 A CN102787545 A CN 102787545A CN 2012102906295 A CN2012102906295 A CN 2012102906295A CN 201210290629 A CN201210290629 A CN 201210290629A CN 102787545 A CN102787545 A CN 102787545A
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Abstract
The invention discloses an ironing plate. The ironing plate comprises a main body (1) of the ironing plate. The ironing plate also comprises a distortion preventing device (2), wherein the distortion preventing device (2) is symmetrically installed at the back side of the main body (1) of the ironing plate relative to the center line (L-L) of the main body (1) of the ironing plate along the width direction of the main body (1) of the ironing plate; and moreover, the distortion preventing device (2) and the main body (1) of the ironing plate form a truss structure. The invention also discloses a spreading machine with the ironing plate. The integral bending rigidity and torsional rigidity of the ironing plate are better, and the phenomena of bending and torsional deformation are not easy to occur.
Description
Technical field
The present invention relates to engineering machinery, particularly, relate to a kind of screed and paver of paver.
Background technology
As the equipment of paver, screed is installed in the rear portion of paver, and it mainly acts on is pre-compacted and the ironing task of accomplishing compound, and the operation of paver all is to be carried out by screed.
In paver when work, be formed with the work elevation angle between screed and the road surface, main frame through draft arm in tow screed travel forward; And compound is scraped and is postponed through front apron; Get into the compacting space of hammer ram, through the pre-compacted of hammer ram, compound gets into the wedge shape space between screed base plate and the road surface; Under the effect of the deadweight of screed and vibrating mechanism, accomplish ironing operation then to compound.
When operating paver, there is a certain amount of compound in the hopper of the front apron front of screed, particularly have the accumulation of compound in the position at the two ends of screed.When screed travels forward; Compound in the hopper can apply between base plate and the road surface of certain resistance and screed screed and have frictional force; Cause screed to rear curved with reverse; Make the work elevation angle of extension of screed less than the work elevation angle of the substrate of screed, and reduce gradually towards the two ends of screed, influence the quality of whole paving concrete pavement by the substrate of screed.Especially the bigger paver of width, paving width is wide more, and the whole torsional rigidity of screed is just more little, the screed distortion that is distorted more easily, the decay at the work elevation angle on the screed broad ways is just serious more, causes the out-of-flatness of paving concrete pavement.
Therefore, need a kind of device that can strengthen the whole torsional rigid of screed, prevent its distortion that is distorted.
Summary of the invention
The purpose of this invention is to provide a kind of screed and paver, the flexural rigidity and the torsional rigid of this screed integral body are better, are difficult for bending and torsional deflection.
To achieve these goals; One side of the present invention provides a kind of screed; This screed comprises the screed main body; Wherein, this screed also comprises anti-recking means for cargo, and the width of this said screed main body in anti-recking means for cargo edge is installed in the rear side of said screed main body and forms trussed construction with said screed main body about the center line symmetry of said screed main body.
Preferably; Said anti-recking means for cargo comprises chord member connected to one another, many struts and Duo Gen brace; Said many struts are connected between said chord member and the said screed main body; The two ends of said brace are connected on said strut and the said chord member, make said chord member, said strut and said brace on horizontal plane, form triangle.
Preferably; Said screed main body comprises substrate and a plurality of extension; These a plurality of extension symmetries are connected the both sides of said substrate; Said strut comprises first hound and second hound, and said first hound tilts to be connected between said chord member and the said extension and adjustable in length, and said second hound tilts to be connected between said chord member and the said substrate.
Preferably, said first hound is a piston rod, and the cylinder barrel of this piston rod is connected with said chord member, and the piston rod of said piston rod is connected with said extension.
Preferably; Said screed also comprises at least two angular transducers and controller; Said at least two angular transducers are installed in respectively on said substrate and the said extension; Send to said controller with the work elevation angle of detecting said substrate and said extension respectively and with detection signal, this controller is controlled the motion of said piston rod according to said detection signal.
Preferably; When the difference between the work elevation angle of the work elevation angle of said substrate and said extension during greater than predetermined value; Said controller transmits control signal to said piston rod, makes that the piston rod of said piston rod is flexible, to adjust the distance between said chord member and the said extension.
Preferably; Said strut also comprises and said first hound and the corresponding triatic stay of said second hound; This triatic stay is connected between said chord member and the said screed main body along fore-and-aft direction; Said first hound and said second hound are positioned at the top and/or the below of said triatic stay, make said triatic stay, said first hound and said extension and said triatic stay, said second hound and said substrate on the side, form triangle.
Preferably, said triatic stay comprises the straight-bar and second connecting rod that is connected rotationally with said second hound, and an end of said straight-bar is connected with said chord member, and said second connecting rod is connected between the other end and said screed main body of said straight-bar.
Preferably, said second connecting rod also has operating portion, and said second connecting rod is threaded with the other end of said straight-bar through said operating portion, operates this operating portion and makes said second connecting rod rotate with respect to said straight-bar.
Preferably, said chord member comprises two cross bars and head rod, and this head rod is rotatably connected between said two cross bars, makes said two cross bars relatively rotate.
Preferably; The two ends of said head rod have left-handed respectively and threaded portion dextrorotation; This threaded portion is connected with the threaded one end of said two cross bars respectively, and the centre of said head rod has operating portion, operates this operating portion and makes said head rod rotate.
Preferably, said anti-recking means for cargo also comprises a plurality of ear seats, and an end and said strut that said a plurality of ear seats are separately positioned on said many struts are connected with said screed main body through said ear seat.
Preferably, said anti-recking means for cargo also comprises a plurality of otic placodes, all connects through said a plurality of otic placodes between said strut and the said brace and between said brace and the said chord member.
Another aspect of the present invention provides a kind of paver, and this paver comprises main frame and screed, and said screed is connected with said main frame, and wherein, said screed is a screed recited above.
Pass through technique scheme; Because anti-recking means for cargo and screed main body form trussed construction; And the Stability Analysis of Structures of trussed construction, torsional rigidity and flexural strength are higher, make torsional rigidity and flexural strength that screed is whole improve; In the process of work screed be not vulnerable to windrow resistance and road surface frictional force and twist and flexural deformation, guarantee its spreading quality.
Other features and advantages of the present invention will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of manual, is used to explain the present invention with the following specific embodiment, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the front view of the screed of the specific embodiment of the present invention;
Fig. 2 is the vertical view of the screed of the specific embodiment of the present invention;
Fig. 3 is the lateral view of the screed of the specific embodiment of the present invention;
Fig. 4 is the A-A sectional view of Fig. 2; And
Fig. 5 is the vertical view of anti-recking means for cargo of the screed of the specific embodiment of the present invention.
Description of reference numerals
1 screed main body, 2 anti-recking means for cargo
3 chord members, 4 struts
5 braces, 6 substrates
7 extensions, 8 angular transducers
9 cross bars, 10 head rods
11 straight-bars, 12 second connecting rods
13 ear seats, 14 otic placodes
15 triatic stays, 16 first hounds
17 second hounds
41 cylinder barrels, 42 piston rods
The L-L center line β elevation angle of working
The specific embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that the specific embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.
In the present invention; Do not doing under the situation of opposite explanation; The noun of locality that uses typically refers to the differing heights position of vertical direction as shown in Figure 1 like " upper and lower "; " left and right " typically refers to the diverse location of the both sides of center line as shown in Figure 1, and " forward and backward " typically refers to the diverse location of vertical direction as shown in Figure 2.Work elevation angle β is meant the bottom surface of screed main body and the angle between the road surface.
Like Fig. 1-shown in Figure 4; One side of the present invention provides a kind of screed; This screed comprises screed main body 1; Wherein, this screed also comprises anti-recking means for cargo 2, and the width of this said screed main body 1 in anti-recking means for cargo 2 edges is installed in the rear side of said screed main body 1 and forms trussed construction with said screed main body 1 about the centre line L-L symmetry of said screed main body 1.
Because anti-recking means for cargo 2 forms trussed construction with screed main body 1; And the Stability Analysis of Structures of trussed construction; Torsional rigidity and flexural strength are higher; Make the whole torsional rigidity of screed improve with flexural strength, in the process of working screed be not vulnerable to windrow resistance and road surface frictional force and twist and flexural deformation, guarantee its spreading quality.Anti-recking means for cargo 2 is along the width of the screed main body 1 centre line L-L symmetric arrangement about screed main body 1; Can guarantee the stressed even of screed main body 1; And the overall structure of screed is well-balanced; Structure is firm, thereby anti-recking means for cargo 2 can apply pressure forward to screed main body 1 equably, prevent screed main body 1 to rear curved or twist.
Like Fig. 2 and shown in Figure 5; Particularly; Anti-recking means for cargo 2 forms the parallel chord truss structure with screed main body 1; Preferably, said anti-recking means for cargo 2 comprises chord member connected to one another 3, many struts 4 and Duo Gen brace 5, and said many struts 4 are connected between said chord member 3 and the said screed main body 1.Chord member 3 laterally arranges with the back plate of screed main body 1; Many struts 4 are arranged between chord member 3 and the screed main body 1 along fore-and-aft direction and space; The two ends of said brace 5 are connected on said strut 4 and the said chord member 3; Make said chord member 3, said strut 4 and said brace 5 on horizontal plane, form triangle, brace 5 is obliquely installed between chord member 3 and screed main body 1.4 pairs of screed main bodys 1 of strut apply the support force of fore-and-aft direction, make the ability of frictional force on resistance and road surface of screed main body 1 opposing windrow strengthen, and the antitorque commentaries on classics and the flexural strength of screed integral body also improve.
Screed main body 1 of the present invention can be for various structures, and is as depicted in figs. 1 and 2, as a kind of specific embodiment of the present invention; Preferably; Said screed main body 1 comprises substrate 6 and a plurality of extensions 7, and these a plurality of extension 7 symmetries are connected the both sides of said substrate 6, to widen the paving width of screed; Improve operating efficiency; And said strut 4 comprises first hound 16 and second hound 17, and said first hound 16 tilts to be connected between said chord member 3 and the said extension 7 and adjustable in length, and said second hound 17 tilts to be connected between said chord member 3 and the said substrate 6.
Because extension 7 is arranged on substrate 6 both sides through mechanical connection, normally realize the installing plate of correspondence is fastening, so extension 7 bends more easily and reverses through securing member.Thereby anti-recking means for cargo 2 of the present invention is applicable to the screed with a plurality of extensions 7 more; Its width is big more; Easier crooked with reverse; And the degree of flexural deformation and torsional deflection is bigger, and anti-recking means for cargo 2 of the present invention can improve the whole torsional rigidity and the flexural strength of the screed of this structure, makes it be difficult for deforming.Because the adjustable in length of first hound 16; When extension 7 twists with bending; Can apply support force to extension 7 through the length of regulating first hound 16; Resistance and frictional force so that opposing screed main body 1 receives prevent that screed main body 1 from deforming, and make it return to original state and do not bend and reverse.
Regulate the length of first hound 16 for ease, like Fig. 3 and shown in Figure 5, preferably, said first hound 16 is a piston rod, and the cylinder barrel 41 of this piston rod is connected with said chord member 3, and the piston rod 42 of said piston rod is connected with said extension 7.Adopt piston rod as first hound 16, can be through flexible its length of regulating easily of piston rod 42, regulating the support force of 16 pairs of extensions 7 of first hound as required easily, and structure is firm.
Distortion or flexural deformation because screed main body 1 twists can cause that the work elevation angle β at the two ends of screed main body 1 changes, and promptly work elevation angle β reduces gradually towards two ends from the centre line L-L of screed main body 1, causes the pavement roughness that paves.
Therefore; In order to prevent that screed main body 1 from twisting with crooked and make the evenness of road surface that paves; As depicted in figs. 1 and 2; Preferably, said screed also comprises at least two angular transducers 8 and controller, and said at least two angular transducers 8 are installed in respectively on said substrate 6 and the said extension 7; Send to said controller with the work elevation angle β that detects said substrate 6 and said extension 7 respectively and with detection signal, this controller is controlled the motion of said piston rod according to said detection signal.
Therefore; Angular transducer 8 can detect the work elevation angle β of substrate 6 and extension 7 in real time, and controller can come the motion of control piston cylinder according to real time detection signal, to realize the adaptations of the support force that piston rod applies extension 7; Make the work elevation angle β of screed main body 1 remain unanimity; With the planeness on the road surface that guarantees to pave, and realized automation control, made it easy to operate screed.
Like Fig. 3 and shown in Figure 4; In order to increase the support force of 4 pairs of screed main bodys 1 of strut; Preferably; Said strut 4 also comprises and said first hound 16 and said second hound, 17 corresponding triatic stays 15; This triatic stay 15 is connected between said chord member 3 and the said screed main body 1 along fore-and-aft direction, and said first hound 16 and said second hound 17 are positioned at the top and/or the below of said triatic stay 15, makes said triatic stay 15, said first hound 16 and said extension 7 and said triatic stay 15, said second hound 17 and said substrate 6 on the side, form triangle.Triatic stay 15 is formed with certain angle respectively and between corresponding first hound 16 and second hound 17; Thereby triatic stay 15, first hound 16 (or second hound 17) and screed main body 1 constitute triangular structure; Further improve the flexural rigidity and the torsional stiffness of screed, made structure more firm.
Because the left part of screed main body 1 and right part are hinged through jointed shaft, and form angle between the left part of screed main body 1 and the right part, i.e. camber.According to the designing requirement of different paving concrete pavement, left part that can be through regulating screed main body 1 and right part rotate around jointed shaft up or down regulates camber, to satisfy the construction requirement of different paving concrete pavement.When the camber of screed main body 1 changes; In order to be adapted to the variation of camber; Like Fig. 3 and shown in Figure 4, preferably, said triatic stay 15 comprises the straight-bar 11 and second connecting rod 12 that is connected rotationally with said second hound 17; One end of said straight-bar 11 is connected with said chord member 3, and said second connecting rod 12 is connected between the other end and said screed main body 1 of said straight-bar 11.The triatic stay 15 and second hound 17 can be made the adjustment that adapts when camber changes, to satisfy the use needs.
For simplified structure is regulated with being convenient to; Preferably; Said second connecting rod 12 also has operating portion, and said second connecting rod 12 is threaded through the other end of said operating portion with said straight-bar 11, operates this operating portion and makes said second connecting rod 12 rotate with respect to said straight-bar 11.Operating portion forms the shape of hexagonal prismoid; Utilize operation tool (for example spanner) to be stuck in and make second connecting rod 12 rotate on the operating portion with respect to straight-bar 11; Thereby an end of second connecting rod 12 relatively rotates with respect to the other end of straight-bar 11, to make things convenient for being connected between anti-recking means for cargo and the screed main body 1.Second connecting rod 12 relatively rotates with straight-bar 11, makes triatic stay 15 and second hound 17 be adapted to the variation of camber, with assurance anti-recking means for cargo 2 enough flexural rigidity and torsional stiffness.
As shown in Figure 5, preferably, said chord member 3 comprises two cross bars 9 and head rod 10, and this head rod 10 is rotatably connected between said two cross bars 9, makes said two cross bars 9 relatively rotate, thereby makes chord member 3 be adapted to the variation of camber.For example, when camber increased, chord member 3 received downward pulling force and bends, thereby made the entire length of chord member 3 increase adaptively through regulating head rod 10, avoided chord member 3 to receive pulling force and bent.For example, head rod 10 can be made up of the piston rod of two opposing settings, and the piston rod of two piston rods is connected with two cross bars 9 respectively, so that regulate the entire length of chord member 3.
For simplified structure is regulated with being convenient to; Specifically preferably; The two ends of said head rod 10 have left-handed respectively and threaded portion dextrorotation, and this threaded portion is connected with the threaded one end of said two cross bars 9 respectively, and the centre of said head rod 10 has operating portion; Operate this operating portion and make said head rod 10 rotate, to elongate or shorten the entire length of said chord member 3.Operating portion forms the shape of hexagonal prismoid; Utilize operation tool (for example spanner) to be stuck in and make head rod 10 rotate on the operating portion; Thereby the two ends of head rod 10 are with respect to an end generation relative motion of two cross bars 9; And because the hand of spiral of the threaded portion at the two ends of head rod 10 is opposite, thereby the distance between the end of two cross bars 9 elongates or shortens, and specifically looks the rotation direction of head rod 10 and decides; With elongating or shortening of the entire length that realizes chord member 3, make chord member 3 be adapted to the variation of camber.
As shown in Figure 5; The installation of anti-recking means for cargo 2 for ease is with fastening with being connected of screed main body 1; Preferably; Said anti-recking means for cargo 2 also comprises a plurality of ear seats 13, and an end and said strut 4 that said a plurality of ear seats 13 are separately positioned on said many struts 4 are connected with said screed main body 1 through said ear seat 13.Strut 4 through corresponding ear seat 13 be connected to screed main body 1 installing plate (be substrate 6 with extension 7 between and the installing plate that is connected between the adjacent extension 7) on; And modes such as, welding fastening through securing member are fixed on the screed main body 1; Thereby make anti-recking means for cargo 2 be installed to the rear side of screed main body 1; Make and be connected firmly the easy for installation of anti-recking means for cargo 2.Particularly, triatic stay 15, first hound 16 and second hound 17 are installed through ear seat 13 separately respectively, make easy to connect, simple in structure with screed main body 1.
As shown in Figure 5, the installation of brace 5 for ease be connected, preferably, said anti-recking means for cargo 2 also comprises a plurality of otic placodes 14, all connects through said a plurality of otic placodes 14 between said strut 4 and the said brace 5 and between said brace 5 and the said chord member 3.Make easy to connect between strut 4 and the chord member 3 and between brace 5 and the chord member 3, whole trussed construction is simple.Certainly, modes such as otic placode 14 can be fastening through securing member, welding are fixed on ear seat 13 or the chord member 3, are connected firmly guaranteeing.
Another aspect of the present invention provides a kind of paver, and this paver comprises main frame and screed, and said screed is connected with said main frame, and wherein, said screed is a screed recited above.Because the whole torsional stiffness of the screed of paver of the present invention receives external force and is not easy to deform as the time spent with crooked powerful bigger, thereby guarantee the planeness of quality, the especially paving concrete pavement of paver paving concrete pavement, had functional performance preferably.
More than combine accompanying drawing to describe preferred implementation of the present invention in detail; But; The present invention is not limited to the detail in the above-mentioned embodiment; In technical conceive scope of the present invention, can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition; Each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be regarded as the disclosed content of the present invention equally.
Claims (14)
1. screed; This screed comprises screed main body (1); It is characterized in that; This screed also comprises anti-recking means for cargo (2), and the width of this anti-recking means for cargo (2) said screed main body in edge (1) is installed in the rear side of said screed main body (1) and forms trussed construction with said screed main body (1) about center line (L-L) symmetry of said screed main body (1).
2. screed according to claim 1; It is characterized in that; Said anti-recking means for cargo (2) comprises chord member connected to one another (3), many struts (4) and many braces (5); Said many struts (4) are connected between said chord member (3) and the said screed main body (1); The two ends of said brace (5) are connected on said strut (4) and the said chord member (3), make said chord member (3), said strut (4) and said brace (5) on horizontal plane, form triangle.
3. screed according to claim 2; It is characterized in that; Said screed main body (1) comprises substrate (6) and a plurality of extension (7); This a plurality of extensions (7) symmetry is connected the both sides of said substrate (6); Said strut (4) comprises first hound (16) and second hound (17), and said first hound (16) tilts to be connected between said chord member (3) and the said extension (7) and adjustable in length, and said second hound (17) tilts to be connected between said chord member (3) and the said substrate (6).
4. screed according to claim 3 is characterized in that, said first hound (16) is a piston rod, and the cylinder barrel of this piston rod (41) is connected with said chord member (3), and the piston rod of said piston rod (42) is connected with said extension (7).
5. screed according to claim 4; It is characterized in that; This screed also comprises at least two angular transducers (8) and controller; Said at least two angular transducers (8) are installed in respectively on said substrate (6) and the said extension (7), send to said controller with the work elevation angle (β) of detecting said substrate (6) and said extension (7) respectively and with detection signal, and this controller is controlled the motion of said piston rod according to said detection signal.
6. screed according to claim 5; It is characterized in that; When the difference between the work elevation angle (β) of the work elevation angle of said substrate (6) (β) and said extension (7) during greater than predetermined value; Said controller transmits control signal to said piston rod, makes that the piston rod (42) of said piston rod is flexible, to adjust the distance between said chord member (3) and the said extension (7).
7. screed according to claim 3; It is characterized in that; Said strut (4) also comprises and said first hound (16) and the corresponding triatic stay of said second hound (17) (15); This triatic stay (15) is connected between said chord member (3) and the said screed main body (1) along fore-and-aft direction; Said first hound (16) and said second hound (17) are positioned at the top and/or the below of said triatic stay (15), make said triatic stay (15), said first hound (16) and said extension (7) and said triatic stay (15), said second hound (17) and said substrate (6) on the side, form triangle.
8. screed according to claim 7; It is characterized in that; Said triatic stay (15) comprises straight-bar (11) and second connecting rod (12) that is connected rotationally with said second hound (17); One end of said straight-bar (11) is connected with said chord member (3), and said second connecting rod (12) is connected between the other end and said screed main body (1) of said straight-bar (11).
9. screed according to claim 8; It is characterized in that; Said second connecting rod (12) also has operating portion; Said second connecting rod (12) is threaded through the other end of said operating portion with said straight-bar (11), operates this operating portion and makes said second connecting rod (12) rotate with respect to said straight-bar (11).
10. screed according to claim 2; It is characterized in that; Said chord member (3) comprises two cross bars (9) and head rod (10), and this head rod (10) is rotatably connected between said two cross bars (9), makes said two cross bars (9) relatively rotate.
11. screed according to claim 10; It is characterized in that; The two ends of said head rod (10) have left-handed respectively and threaded portion dextrorotation; This threaded portion is connected with the threaded one end of said two cross bars (9) respectively, and the centre of said head rod (10) has operating portion, operates this operating portion and makes said head rod (10) rotate.
12. according to any described screed among the claim 1-11; It is characterized in that; Said anti-recking means for cargo (2) also comprises a plurality of ear seats (13), and an end and said strut (4) that said a plurality of ear seats (13) are separately positioned on said many struts (4) are connected with said screed main body (1) through said ear seat (13).
13. according to any described screed among the claim 1-11; It is characterized in that; Said anti-recking means for cargo (2) also comprises a plurality of otic placodes (14), all connects through said a plurality of otic placodes (14) between said strut (4) and the said brace (5) and between said brace (5) and the said chord member (3).
14. a paver, this paver comprises main frame and screed, and said screed is connected with said main frame, it is characterized in that, said screed is according to any described screed among the claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290629.5A CN102787545B (en) | 2012-08-15 | 2012-08-15 | Ironing plate and spreading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290629.5A CN102787545B (en) | 2012-08-15 | 2012-08-15 | Ironing plate and spreading machine |
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| CN102787545A true CN102787545A (en) | 2012-11-21 |
| CN102787545B CN102787545B (en) | 2015-04-01 |
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| CN201210290629.5A Active CN102787545B (en) | 2012-08-15 | 2012-08-15 | Ironing plate and spreading machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514193A (en) * | 2013-09-27 | 2015-04-15 | 陕西中大机械集团有限责任公司 | Spreading machine rear portion anti-inverted arch structure |
| CN107326780A (en) * | 2017-07-20 | 2017-11-07 | 徐工集团工程机械股份有限公司 | A kind of freely-moving mangle suspension arrangement |
| US11255057B2 (en) | 2020-03-07 | 2022-02-22 | Brian Gallagher | Screed assembly for road paving machines, and a method for repaving road surfaces |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514193A (en) * | 2013-09-27 | 2015-04-15 | 陕西中大机械集团有限责任公司 | Spreading machine rear portion anti-inverted arch structure |
| CN104514193B (en) * | 2013-09-27 | 2017-12-29 | 陕西中大机械集团有限责任公司 | Paver rear portion counnter attack arch structure |
| CN107326780A (en) * | 2017-07-20 | 2017-11-07 | 徐工集团工程机械股份有限公司 | A kind of freely-moving mangle suspension arrangement |
| US11255057B2 (en) | 2020-03-07 | 2022-02-22 | Brian Gallagher | Screed assembly for road paving machines, and a method for repaving road surfaces |
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