CN102409596B - Retractable screed plate structure and paver - Google Patents
Retractable screed plate structure and paver Download PDFInfo
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- CN102409596B CN102409596B CN201110237565.8A CN201110237565A CN102409596B CN 102409596 B CN102409596 B CN 102409596B CN 201110237565 A CN201110237565 A CN 201110237565A CN 102409596 B CN102409596 B CN 102409596B
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- screed
- retractable
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- screed plate
- floating barrier
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Abstract
The invention provides a retractable screed plate structure which comprises a main screed plate (10), an accessory screed plate (20), a floating barrier (30), a guide component (40) and an elastic component (50), wherein the main screed plate (10) and the accessory screed plate (20) are mutually retractable; the guide component (40) is arranged on the main screed plate (10); the floating barrier (30) is slidably arranged along the guide component (40), and biased and abutted against the accessory screed plate (20) by virtue of the elastic component (50). The invention also provides a paver with the retractable screed plate structure. By using the retractable screed plate structure and spreader provided by the invention, a mixture in front of the accessory screed plate can be effectively prevented from leaking into the main screed plate, thereby improving the paving quality of a road surface.
Description
Technical field
The present invention relates to pavement construction mechanical field, more specifically, the paver that relates to a kind of retractable screed plate structure and there is this retractable screed plate structure.
Background technology
At present, the retractable screed plate structure of paver adopts Chinese character pin-shaped layout as shown in Figure 1 conventionally, and main screed 10 is front, and the secondary screed 20 in left and right is rear.The front side of the secondary screed 20 in main screed 10 and left and right has respectively hammer ram system front apron (can referred to as front apron) 12 and 22.
Because secondary screed 20 needs within the specific limits with respect to main screed 10 telescopic movings, therefore leave certain gap (gap A as shown in Figure 2 and gap B) between main screed 10 and secondary screed 20.
For preventing that the compound before secondary screed 20 from bleeding main screed 10 from this gap, as shown in Figure 3, upper with a fixed dam 11 of bolt fixed installation at the end plate (not shown) of main screed 10, to reduce this place, leak material.But for making secondary screed 20 not produce movement interference with fixed dam 11 in telescopic moving process, as shown in Figure 2, still there is gap A and gap B as shown in the figure in 20 of main screed 10 and secondary screeds, cannot prevent that compound from bleeding after main screed 10 completely.
In addition, as shown in Figures 2 and 3, when actual job, screed and paving concrete pavement always trend towards keeping a stable work elevation angle theta.Existence due to screed elevation angle theta, must cause the minimum limit of main screed 10 and the minimum limit of secondary screed 20 on different height and positions, in order to guarantee the planeness of paving concrete pavement, secondary screed 20 must be adjusted upward with respect to main screed 10, the two is highly transferred in same level.And the fixed dam 11 being arranged on the end plate of main screed 10 maintains static, cause the gap B of 20 of main screed 10 and secondary screeds to increase, the compound bleeding after main screed 10 from this increases.And Yue great ， gap, elevation angle B is larger, the compound bleeding after main screed 10 from this is more, thereby affects the spreading quality on road surface.
Summary of the invention
The object of the invention is to solve the above-mentioned problems in the prior art, provides a kind of and can effectively prevent that compound from bleeding after main screed, improving the retractable screed plate structure of spreading quality on road surface and the paver with this retractable screed plate structure.
According to an aspect of the present invention, a kind of retractable screed plate structure is provided, comprise main screed and the secondary screed that can mutually stretch, described retractable screed plate structure also comprises described in floating barrier, guide and elastic component that guide is arranged on described main screed, described floating barrier is mounted slidably along described guide, and is subject to the elastic force of described elastic component and is resisted against on described secondary screed.
Preferably, the side of described main screed has end plate, on this end plate, has fixed dam, and described guide is arranged on described fixed dam.
Preferably, the side of described main screed has end plate, and described guide is arranged on described end plate.
Preferably, described guide be arranged on described end plate on the end face of described secondary screed.
Preferably, described guide is guide rail, and this guide rail is vertically set on described end plate, and described floating barrier is slidably disposed on described guide rail by form fit.
Preferably, on described guide rail, be formed with groove, be formed with corresponding fin on described floating barrier, this fin is embedded in described groove.
Preferably, described groove comprises and is positioned at the arc groove part of this bottom portion of groove and from the outward extending straight trough part of this arc groove part.
Preferably, described elastic component is extension spring.
Preferably, one end of described extension spring is connected on described floating barrier, and the other end is connected on described end plate.
Preferably, the other end of described extension spring is connected on the inner surface of described end plate.
Preferably, described extension spring is in tilted layout with respect to described guide.
Preferably, between described main screed and the bottom of secondary screed, have gap, described floating barrier is positioned at this gap location.
According to another aspect of the present invention, also provide a kind of paver with above-mentioned retractable screed plate structure.
Adopt retractable screed plate structure of the present invention and there is the paver of this retractable screed plate structure, described guide is arranged on described main screed, described floating barrier is mounted slidably along described guide, and is subject to the elastic force of described elastic component and is resisted against on described secondary screed.Therefore, under the synergy of elastic component and guide, no matter under which kind of operating mode, floating barrier all can fit tightly with secondary screed, fill up in real time the gap between major-minor screed, effectively stop the compound before secondary screed to bleed after main screed, thereby improved the spreading quality on road surface.
Other features and advantages of the present invention partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for manual, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the main screed of existing paver and the head-down position schematic diagram of secondary screed;
Fig. 2 is the main screed of the paver under existing actual job state and the partial elevational structural representation of secondary screed;
Fig. 3 is the main screed of the paver under existing actual job state and the sectional perspective structural representation of secondary screed;
Fig. 4 is the sectional perspective structural representation according to retractable screed plate structure of the present invention;
Fig. 5 looks schematic diagram according to the part master of retractable screed plate structure of the present invention;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Fig. 7 is the A-A sectional view of Fig. 6.
Description of reference numerals
10 main screeds; 11 fixed dams; 12 front aprons; 13 end plates
20 secondary screeds; 22 front aprons;
30 floating barriers; 31 fins
40 guides; 41 grooves;
50 elastic components; 51,52 spring bases
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
First the present invention provides a kind of retractable screed plate structure, comprise main screed 10 and the secondary screed 20 that can mutually stretch, described retractable screed plate structure also comprises floating barrier 30, guide 40 and elastic component 50, described guide 40 is arranged on described main screed 10, described floating barrier 30 is mounted slidably along described guide 40, and is subject to the elastic force of described elastic component 50 and is resisted against on described secondary screed 20.
In technique scheme, because be provided with floating barrier 30 on main screed 10, and this floating barrier 30 is by the guide effect of guide 40 and the elastic reaction of elastic component 50 and be resisted against all the time on secondary screed 20, therefore can fill up in real time the gap (referring to the gap B in Fig. 2 and Fig. 3) between main screed 10 and secondary screed 20, thereby the compound that can prevent secondary screed 20 front sides bleeds main screed 10 after, thereby improved the spreading quality on road surface.Here, the noun of locality of indication " front " and " afterwards " are direct of travel when the normal walking construction for paver.In order to fill up better the gap between main screed 10 and secondary screed 20, preferably, the contact shape of part of floating barrier 30 and secondary screed 20 is consistent, makes the two to fit together well.
As shown in Figure 2, have gap A and gap B between main screed 10 and secondary screed 20, its intermediate gap B is positioned at the bottom of main screed 10 and secondary screed 20, and gap A is positioned at the top of gap B.In the course of work of paver, the compound in secondary screed 20 the place aheads easily drains to the rear of main screed 10 by gap B, thereby affects the construction quality on road surface.Because gap A is positioned at the top of gap B, and this gap B is relatively little, so compound generally can not drain to by gap A the rear of main screed 10.Therefore, in the present invention, described floating barrier 30 is preferably placed at B place, gap, thereby can fill up in real time gap B, prevents that compound from draining to the rear of main screed 10, thereby can effectively improve the spreading quality on road surface.
The side of main screed 10 has end plate 13(and participates in Fig. 6), on this end plate 13, fixed dam 11 is installed.In the present invention, described guide 40 can be arranged on fixed dam 11, also can be directly installed on end plate 13.30 of floating barriers are slidably mounted on guide 40, and be subject to elastic component 50 elastic force effect and be resisted against all the time on secondary screed 20, more specifically, be resisted against on the front apron 22 of secondary screed 20, to fill up gap B(between main screed 10 and secondary screed 20 referring to Fig. 2 and Fig. 3).Because elastic component 50 has elastic force, therefore, when main screed 10, with secondary screed 20, relative stretching motion occurs, although floating barrier 30 is resisted against on secondary screed 20, can not cause interference yet, can not affect stretching motion.
As preferred embodiment a kind of, as shown in Figures 4 to 6, described sliding part 40 is preferably guide rail, and this guide rail is vertically set on described end plate 13, and 30 of described floating barriers are installed on described guide rail by form fit.Guide rails assembling, on end plate 13, can effectively be utilized to the space of this part, make structure compacter.
More preferably, as shown in Figure 6, described sliding part (guide rail) 40 is positioned on the end face of described end plate 13, for example, be welded on the end face of end plate 13, or be directly integrally formed on the end face of end plate 13.This mode is arranged simply, can not cause interference with miscellaneous part.
As shown in Figure 7, on described guide rail, can be formed with groove 41, on described floating barrier 30, be formed with fin 31, this fin 31 is embedded in described groove 41, thereby can slide along groove 41, thereby floating barrier 30 can be resisted against on the front apron 22 of secondary screed 20 all the time.Groove and guide rail can adopt various suitable shapes, such as T shape, circular arc etc., and the present invention is not restricted this.
In the present invention, described groove 41 preferably includes and is positioned at the arc groove part of this bottom portion of groove and from the outward extending straight trough part of this arc groove part.In other words, the shape of groove 41 is preferably the combined shaped of circular arc flute profile and straight trough shape, and the bottom of groove 41 forms circular arc, and stretches out with straight trough shape from this circular arc.The shape of the shape of fin 31 and groove 41 matches.In this way, fin 31 can firmly be embedded in groove 41.And the existence due to described straight trough part, can prevent that floating barrier 30 is with respect to guide rail deflection.
Described elastic component 50 is preferably extension spring, and it is simple in structure, is easy to realize.
As preferred embodiment a kind of, one end of described elastic component (extension spring) 50 is connected on described floating barrier 30, and the other end is connected on described end plate 13.Described extension spring is in tilted layout with respect to described guide rail.The elastic force of extension spring component in vertical direction will cause floating barrier 30 to have all the time the trend moving upward, thereby can be resisted against all the time on the front apron 22 of secondary screed 20.Adopt in this way, only need an extension spring, just can make floating barrier conflict all the time on secondary screed, therefore simple in structure, use reliable.
In addition, from Fig. 4, can clearly be seen that, described elastic component 50 is positioned at the inner side of described floating barrier 30.In other words, the outside of end plate 13 has fixed dam 11, and one end of described elastic component 50 is fixed on the inner surface of end plate 13, i.e. a side contrary with fixed dam 11.Adopt this arrangement, fixed dam 11 is installed on the outer surface due to end plate 13, so elastic component 50 is arranged in to the inner side of end plate 13, make arrangement convenience, can not interfere with the fixed dam 11 in outside.On the other hand, elastic component 50 is arranged in to the inner side of end plate 13, can avoids elastic component 50 to be subject to the direct infringement of external mix material etc., to improve reliability and the application life of elastic component 50, and can not affect the outward appearance of whole retractable screed plate structure.
As shown in Figure 5 and Figure 6, on end plate 13 and floating barrier 30, have respectively spring base 51 and 52, such as bolt etc., the two ends of elastic component 50 are hung on this spring base, simple in structure, and operation and maintenance is all very convenient.
According to another aspect of the present invention, also provide a kind of paver with above-mentioned retractable screed plate structure.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention; for example extension spring is replaced with to Compress Spring, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (11)
1. a retractable screed plate structure, comprise main screed (10) and the secondary screed (20) that can mutually stretch, it is characterized in that, described retractable screed plate structure also comprises floating barrier (30), guide (40) and elastic component (50), described guide (40) is arranged on described main screed (10), described floating barrier (30) is mounted slidably along described guide (40), and be subject to the elastic force of described elastic component (50) and be resisted against on described secondary screed (20), between described main screed (10) and the bottom of secondary screed (20), there is gap (B), described floating barrier (30) is positioned at this gap (B) and locates, described elastic component (50) is extension spring, one end of this extension spring is connected on described floating barrier (30), the other end is connected on described main screed (10).
2. retractable screed plate structure according to claim 1, it is characterized in that, the side of described main screed (10) has end plate (13), has fixed dam (11) on this end plate (13), and described guide (40) is arranged on described fixed dam (11).
3. retractable screed plate structure according to claim 1, is characterized in that, the side of described main screed (10) has end plate (13), and described guide (40) is arranged on described end plate (13).
4. retractable screed plate structure according to claim 3, is characterized in that, described guide (40) be arranged on described end plate (13) on the end face of described secondary screed (20).
5. retractable screed plate structure according to claim 4, it is characterized in that, described guide (40) is guide rail, and it is upper that this guide rail is vertically set on described end plate (13), and described floating barrier (30) is slidably disposed on described guide rail by form fit.
6. retractable screed plate structure according to claim 5, is characterized in that, is formed with groove (41) on described guide rail, is formed with corresponding fin (31) on described floating barrier (30), and this fin (31) is embedded in described groove (41).
7. retractable screed plate structure according to claim 6, is characterized in that, described groove (41) comprises and is positioned at the arc groove part of this bottom portion of groove and from the outward extending straight trough part of this arc groove part.
8. according to the retractable screed plate structure described in claim 2 to 7, it is characterized in that, it is upper that one end of described extension spring is connected to described floating barrier (31), and the other end is connected on described end plate (13).
9. retractable screed plate structure according to claim 8, is characterized in that, the other end of described extension spring is connected on the inner surface of described end plate (13).
10. retractable screed plate structure according to claim 9, is characterized in that, described extension spring is in tilted layout with respect to described guide (40).
11. 1 kinds of pavers, this paver comprises retractable screed plate structure, it is characterized in that, described retractable screed plate structure is according to the retractable screed plate structure described in any one in claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237565.8A CN102409596B (en) | 2011-08-18 | 2011-08-18 | Retractable screed plate structure and paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237565.8A CN102409596B (en) | 2011-08-18 | 2011-08-18 | Retractable screed plate structure and paver |
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| Publication Number | Publication Date |
|---|---|
| CN102409596A CN102409596A (en) | 2012-04-11 |
| CN102409596B true CN102409596B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110237565.8A Active CN102409596B (en) | 2011-08-18 | 2011-08-18 | Retractable screed plate structure and paver |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852078A (en) * | 2012-08-18 | 2013-01-02 | 徐州凯莫尔重工科技有限公司 | Mechanism for fixing front stretch oil cylinder of retractable screed plate |
| CN103526672B (en) * | 2013-10-23 | 2016-08-17 | 戴纳派克（中国）压实摊铺设备有限公司 | Screed and paver |
| CN113152222B (en) * | 2021-04-13 | 2022-11-29 | 徐州工业职业技术学院 | Ironing plate suitable for small paver |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379653A (en) * | 1981-06-01 | 1983-04-12 | White Consolidated Industries, Inc. | Asphalt paver with telescoping screed |
| CN2637551Y (en) * | 2003-08-16 | 2004-09-01 | 镇江华晨华通路面机械有限公司 | Road surface spreader hydraulic extension mangle plate |
| EP2199467A1 (en) * | 2008-12-16 | 2010-06-23 | Joseph Vögele AG | Paving screed and method for manufacturing a road surface |
| CN201553973U (en) * | 2009-11-16 | 2010-08-18 | 三一重工股份有限公司 | Spreading machine and edge baffle of screed thereof |
| CN202220321U (en) * | 2011-08-18 | 2012-05-16 | 中联重科股份有限公司 | Telescopic flat plate structure and spreading machine |
-
2011
- 2011-08-18 CN CN201110237565.8A patent/CN102409596B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379653A (en) * | 1981-06-01 | 1983-04-12 | White Consolidated Industries, Inc. | Asphalt paver with telescoping screed |
| CN2637551Y (en) * | 2003-08-16 | 2004-09-01 | 镇江华晨华通路面机械有限公司 | Road surface spreader hydraulic extension mangle plate |
| EP2199467A1 (en) * | 2008-12-16 | 2010-06-23 | Joseph Vögele AG | Paving screed and method for manufacturing a road surface |
| CN201553973U (en) * | 2009-11-16 | 2010-08-18 | 三一重工股份有限公司 | Spreading machine and edge baffle of screed thereof |
| CN202220321U (en) * | 2011-08-18 | 2012-05-16 | 中联重科股份有限公司 | Telescopic flat plate structure and spreading machine |
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| Publication number | Publication date |
|---|---|
| CN102409596A (en) | 2012-04-11 |
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