CN112482149B - Telescopic screed plate and paver - Google Patents
Telescopic screed plate and paver Download PDFInfo
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- CN112482149B CN112482149B CN202011302045.6A CN202011302045A CN112482149B CN 112482149 B CN112482149 B CN 112482149B CN 202011302045 A CN202011302045 A CN 202011302045A CN 112482149 B CN112482149 B CN 112482149B
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- telescopic
- screed
- ironing plate
- plate
- guide
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a telescopic screed and a paver, and the telescopic screed comprises a basic section screed, a left first telescopic section screed, a right first telescopic section screed, a left second telescopic section screed and a right second telescopic section screed, wherein the left first telescopic section screed and the right first telescopic section screed are respectively connected with the basic section screed through a left first telescopic guide mechanism and a right first telescopic guide mechanism and can transversely move relative to the basic section screed. The invention provides a telescopic screed plate with the width reaching three times of the basic width when the screed plate is completely stretched, so that the requirement of large-width paving can be met only through the telescopic operation of the screed plate without disassembling and assembling an extension section, and the construction convenience is obviously improved.
Description
Technical Field
The invention relates to the technical field of pavers, in particular to a telescopic screed plate and a paver.
Background
Screed plates are very important working devices on paving machines for compacting, smoothing and shaping road surfaces, often having an screed plate, a base plate, a vibrating mechanism, etc. Depending on the width expansion, screed plates can be generally divided into hydraulically telescopic screed plates and mechanically built screed plates. Different working widths are realized by assembling lengthened sections with different widths through fasteners through the mechanical assembling screed plate, and the working width can be conveniently changed by enabling the telescopic section screed plate to be transversely (namely perpendicular to the advancing direction of the paver) telescopic relative to the basic section screed plate through the hydraulic telescopic screed plate.
The most common retractable screed at present has a width of about twice the width of the base when fully extended, and the screed includes a base section screed and left and right retractable section screeds which are disposed on the front side or the rear side of the base section screed at the same side and can be laterally retracted relative to the base section screed. The patent publication CN1198017C discloses a typical embodiment, which comprises a three-point supporting telescopic guide mechanism including a multi-stage telescopic tube, a guide circular shaft and a linear guide rail; further embodiments having telescoping guide mechanisms comprising multiple telescoping tubes or multiple guiding circular shafts or combinations thereof are known in the industry.
In addition, there is a screed which is approximately three times as wide as the base width when fully extended, but which has a non-negligible difference from three times the base width. The screed comprises a basic section screed and a left telescopic section screed and a right telescopic section screed which are arranged behind the basic section screed and are staggered in the front-rear direction, wherein the left telescopic section screed and the right telescopic section screed can transversely extend and retract relative to the basic section screed, and a typical embodiment is disclosed in a patent with the publication number of CN 1196834C.
It is well known in the industry that if the width of the screed to be paved exceeds the width of the screed when the screed is fully extended, the screed of the extension section needs to be manually assembled at the outer side of the screed of the extension section. However, disassembling and assembling the extended ironing board is time consuming and labor consuming, and causes additional burden in transportation.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a telescopic screed and a paver, and solves the technical problem that the transverse extension amplitude of the telescopic screed in the prior art is not large.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a telescopic ironing board comprises a basic section ironing board, a left first telescopic section ironing board, a right first telescopic section ironing board, a left second telescopic section ironing board and a right second telescopic section ironing board, wherein the left first telescopic section ironing board and the right first telescopic section ironing board are respectively connected with the basic section ironing board through a left first telescopic guide mechanism and a right first telescopic guide mechanism and can transversely move relative to the basic section ironing board;
the left first telescopic guide mechanism comprises at least one telescopic pipe or at least one guide circular shaft or at least one linear guide rail or a combination of the telescopic pipe, the guide circular shaft and the linear guide rail, and the right first telescopic guide mechanism comprises at least one telescopic pipe or at least one guide circular shaft or at least one linear guide rail or a combination of the telescopic pipe, the guide circular shaft and the linear guide rail;
the left first telescopic ironing plate and the right first telescopic ironing plate are respectively provided with a first guide hole, and the left second telescopic ironing plate and the right second telescopic ironing plate are respectively provided with a first guide circular shaft matched with the first guide hole, so that the left second telescopic ironing plate and the right second telescopic ironing plate can respectively transversely move relative to the left first telescopic ironing plate and the right first telescopic ironing plate;
when first flexible section screed in a left side, first flexible section screed in a right side and the flexible section screed of left second, right second all are in the complete withdrawal position, the central plane of basic section screed is all crossed to the first direction circle axle of the flexible section screed of left second, the flexible section screed of right second, and the setting of staggering of the first direction circle axle of the flexible section screed of left second and the direction circle axle of the flexible section screed of right second.
As a preferred embodiment of the present invention, in the above-mentioned retractable screed, there are two first guiding circular shafts of the left second retractable ironing plate, which are arranged up and down, and two second guiding circular shafts of the right second retractable ironing plate, which are arranged up and down, and the first guiding circular shaft of the left second retractable ironing plate and the first guiding circular shaft of the right second retractable ironing plate are arranged in a staggered manner.
As a preferred embodiment of the present invention, in the above-mentioned retractable screed, the first retractable guiding mechanism and the right first retractable guiding mechanism respectively comprise a left retractable suspension, a right retractable suspension and a second guiding circular shaft respectively connected to the left retractable suspension and the right retractable suspension,
the base section ironing plate is also provided with a second guide hole which is respectively matched with a second guide circular shaft of the left telescopic suspension and a second guide circular shaft of the right telescopic suspension, so that the left telescopic suspension and the right telescopic suspension can transversely move for a first distance relative to the base section ironing plate;
the left telescopic suspension and the right telescopic suspension are further provided with a third guide hole, the left first telescopic section ironing board and the right first telescopic section ironing board respectively comprise a third guide circular shaft matched with the three phases of the guide holes, and the left first telescopic section ironing board and the right first telescopic section ironing board can respectively suspend a transverse moving distance two relative to the left telescopic suspension and the right telescopic suspension.
As a preferred scheme of the present invention, the left telescopic suspension and the right telescopic suspension of the telescopic screed plate respectively include an outer end plate, a middle end plate, an inner end plate, and a connecting plate connecting the outer end plate, the middle end plate, and the inner end plate;
the second guide circular shaft is connected with the outer end plate of the left telescopic suspension and the inner end plate of the right telescopic suspension, and two groups of third guide holes are formed in the outer end plate and the middle end plate respectively.
As a preferred aspect of the present invention, the sum of the lengths of the left second stretch screed and the right second stretch screed is equal to the length of the base screed, and the sum of the first lateral movement distance and the second lateral movement distance is equal to half of the length of the base screed.
In a preferred embodiment of the present invention, the first traverse distance and the second traverse distance of the retractable screed are equal to 1/4 of the base section screed.
A paver comprising a telescopic screed according to any one of the claims.
The invention achieves the following beneficial effects: compared with the prior art, the invention provides the telescopic screed with the width reaching three times of the basic width when the screed is completely stretched out, so that the requirement of large-width paving can be met only through the stretching of the screed without disassembling and assembling the lengthened section, and the construction convenience is obviously improved.
The overlapping amount and the stretching amount between the adjacent sliding connecting parts are reasonably designed, and when the maximum stretching limit is reached, the overlapping amount and the stretching amount still have good and reliable overlapping amount, so that the maximum stretching transverse distance is ensured, and the paving effect can be still ensured.
Drawings
FIG. 1 is a front view (looking from the rear to the front in the paving direction) of a retractable screed according to the present invention;
FIG. 2 is a top plan view of the telescoping screed plate of the present invention;
FIG. 3 is a left side view of the telescoping screed of the present invention;
FIG. 4 is a right side view of the retractable screed of the present invention;
FIG. 5 is a side view (looking from front to back along the paving direction) of the retractable screed of the present invention;
FIG. 6 is a three-dimensional schematic view of the telescoping screed of the present invention (laterally extended);
FIG. 7 is a three-dimensional schematic view of the telescoping screed plate of the present invention (retracted state);
the meaning of the reference numerals: 1-a base section screed plate; 2-a first left telescoping section screed; 3-a right first telescopic ironing board; 4-a left second telescoping section screed plate; 5-a right second telescopic ironing board; 6-a first left telescopic guide mechanism; 7-a right first telescopic guide mechanism; 11-a guide hole II; 21-guiding a circular shaft III; 22-a pilot hole one; 41-guiding a circular shaft I; 61-left telescopic suspension; 62-guiding a circular shaft II; 71-right telescopic suspension; 611-an outer end plate; 612-middle endplate; 613-inner end plate; 614-connecting plate; 615-guide hole three.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 7: the embodiment discloses a flexible screed, including basic section screed 1, the first flexible section screed 2 in a left side, the first flexible section screed 3 in the right side, the flexible section screed 4 of left second, the flexible section screed 5 of right second, the first flexible guiding mechanism 6 in a left side, the first flexible guiding mechanism 7 in the right side.
The left side and the right side of the foundation section ironing plate 1 are respectively provided with a second guide hole 11, the left first telescopic guide mechanism 6 and the right first telescopic guide mechanism 7 respectively comprise a left telescopic suspension 61, a right telescopic suspension 71 and a second guide circular shaft 62, and the number of the second guide circular shaft 62 is preferably two.
The second guide circular shaft 62 is in sliding fit with the second guide hole 11; wherein left telescoping suspension 61 comprises outer end plate 611, middle end plate 612, inner end plate 613 and connecting plate 614 connecting them, and the lateral distance of middle end plate 612 relative to outer end plate 611 and inner end plate 613 is substantially equivalent; right telescoping suspension 71 also includes outer end plate 611, middle end plate 612, inner end plate 613 and connecting plate 614 connecting them.
The two guiding circular shafts 62 are respectively connected with the outer end plate 611 and the inner end plate 613 of the left telescopic suspension 61 and the right telescopic suspension 71. The left telescopic suspension 61 and the right telescopic suspension 71 can move a distance one transversely relative to the base section screed 1, respectively.
The outer end plate 611 and the middle end plate 612 of the left telescopic suspension 61 and the right telescopic suspension 71 are further provided with a third guide hole 615 respectively, the third guide hole 615 preferably comprises two groups, the first left telescopic ironing plate 2 and the first right telescopic ironing plate 3 are provided with two third guide circular shafts 21 respectively, and the third guide circular shafts 21 are in sliding fit with the third guide hole 615, so that the first left telescopic ironing plate 2 and the first right telescopic ironing plate 3 can move transversely for a distance two relative to the left telescopic suspension 61 and the right telescopic suspension 71 respectively.
The rear portion of the first flexible section screed 2 of a left side, the first flexible section screed 3 of the right side are provided with two sets of guiding holes 22 respectively, be provided with two sets of one 41 of direction circle axle with guiding holes 22 complex on the flexible section screed 5 of the second flexible section screed 4 of a left side, the flexible section screed 5 of the second of the right side respectively to the flexible section screed 4 of the second of a left side, the flexible section screed 5 of the second of the right side can be respectively for the first flexible section screed 2 of the left side, the first flexible section screed 3 lateral shifting of the right side.
Two first guide circular shafts 41 on the left side and the right side are arranged in a staggered mode from front to back, so that when all the telescopic ironing plates retract completely, although the first guide circular shafts 41 of the left second telescopic ironing plate 4 and the right second telescopic ironing plate 5 all cross the central plane of the basic ironing plate 1, the mutual interference is still avoided. In this embodiment, the two first guiding circular shafts 41 on the left second telescopic ironing board 4 and the right second telescopic ironing board 5 are both arranged up and down, that is, one first guiding circular shaft 41 is located above the other first guiding circular shaft 41, and the first guiding circular shaft 41 on the left second telescopic ironing board 4 is located near the front side relative to the two first guiding circular shafts of the right second telescopic ironing board 5.
In addition, still be provided with a plurality of flexible hydraulic cylinder (not shown) on the flexible screed to drive respectively that left first flexible section screed 2, right first flexible section screed 3 are for basic section screed 1 lateral shifting and drive respectively that left second flexible section screed 4, right second flexible section screed 5 are for left first flexible section screed 2, right first flexible section screed 3 lateral shifting.
The embodiment also discloses a paver comprising the telescopic screed plate.
Compared with the prior art, the embodiment provides a width when stretching out completely reaches the flexible screed of triple of basic width to only need through the flexible of screed and need not dismouting extension section and can satisfy the needs that the large-width paved, improve the construction convenience remarkably.
The overlapping amount and the stretching amount between the adjacent sliding connecting parts are reasonably designed, and when the maximum stretching limit is reached, the overlapping amount and the stretching amount still have good and reliable overlapping amount, so that the maximum stretching transverse distance is ensured, and the paving effect can be still ensured.
The sum of the lengths of the left second telescopic ironing plate 4 and the right second telescopic ironing plate 5 is equal to that of the basic section ironing plate 1, and in the maximum transverse extension state, the sum of the transverse moving distance I and the transverse moving distance II is equal to half of the length of the basic section ironing plate 1, so that the total transverse extension length is three times of that of the basic section ironing plate 1. In practice, the length of the first and second traverse distances may be equal to 1/4 of the length of the base screed 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (7)
1. The telescopic ironing plate is characterized by comprising a basic section ironing plate (1), a left first telescopic section ironing plate (2), a right first telescopic section ironing plate (3), a left second telescopic section ironing plate (4) and a right second telescopic section ironing plate (5), wherein the left first telescopic section ironing plate (2) and the right first telescopic section ironing plate (3) are respectively connected with the basic section ironing plate (1) through a left first telescopic guide mechanism (6) and a right first telescopic guide mechanism (7) and can transversely move relative to the basic section ironing plate (1);
the left first telescopic guide mechanism (6) comprises at least one telescopic pipe or at least one guide round shaft or at least one linear guide rail or a combination of the telescopic pipe, the guide round shaft and the linear guide rail, and the right first telescopic guide mechanism (7) comprises at least one telescopic pipe or at least one guide round shaft or at least one linear guide rail or a combination of the telescopic pipe, the guide round shaft and the linear guide rail;
the left first telescopic ironing plate (2) and the right first telescopic ironing plate (3) are respectively provided with a first guide hole (22), and the left second telescopic ironing plate (4) and the right second telescopic ironing plate (5) are respectively provided with a first guide circular shaft (41) matched with the first guide hole (22), so that the left second telescopic ironing plate (4) and the right second telescopic ironing plate (5) can respectively move transversely relative to the left first telescopic ironing plate (2) and the right first telescopic ironing plate (3);
when the left first telescopic ironing plate (2), the right first telescopic ironing plate (3), the left second telescopic ironing plate (4) and the right second telescopic ironing plate (5) are all in the fully retracted positions, the guide circular shafts (41) of the left second telescopic ironing plate (4) and the right second telescopic ironing plate (5) both cross the central plane of the basic section ironing plate (1), and the guide circular shafts (41) of the left second telescopic ironing plate (4) and the guide circular shafts (41) of the right second telescopic ironing plate (5) are arranged in a staggered mode;
when the left first telescopic ironing plate (2), the right first telescopic ironing plate (3), the left second telescopic ironing plate (4) and the right second telescopic ironing plate (5) are all in the fully extended positions, the paving width of the telescopic ironing plates reaches three times of the base width.
2. The telescopic screed according to claim 1, wherein the first guiding round shafts (41) of the left second telescopic screed (4) are arranged up and down, the first guiding round shafts (41) of the right second telescopic screed (5) are arranged up and down, and the first guiding round shafts (41) of the left second telescopic screed (4) and the first guiding round shafts (41) of the right second telescopic screed (5) are arranged in a staggered manner back and forth.
3. The telescopic screed according to claim 1 or 2, characterised in that the first and the right first telescopic guiding means (6, 7) comprise a left telescopic suspension (61), a right telescopic suspension (71) and a second guiding circular shaft (62) connected to the left telescopic suspension (61), the right telescopic suspension (71) respectively,
the basic section ironing plate (1) is also provided with a second guide hole (11) which is respectively matched with a second guide circular shaft (62) of the left telescopic suspension (61) and a second guide circular shaft (62) of the right telescopic suspension (71), so that the left telescopic suspension (61) and the right telescopic suspension (71) can transversely move for a first distance relative to the basic section ironing plate (1);
the left telescopic suspension (61) and the right telescopic suspension (71) are further provided with a third guide hole (615), the left first telescopic ironing plate (2) and the right first telescopic ironing plate (3) respectively comprise a third guide circular shaft (21) matched with the third guide hole (615), and the left first telescopic ironing plate (2) and the right first telescopic ironing plate (3) can respectively suspend (61) and the right telescopic suspension (71) in a transverse moving distance of two relative to the left telescopic suspension and the right telescopic suspension.
4. Telescopic screed according to claim 3, wherein the left and right telescopic suspensions (61, 71) comprise an outer end plate (611), a middle end plate (612), an inner end plate (613), respectively, and a connection plate (614) connecting the outer end plate (611), the middle end plate (612), the inner end plate (613);
the second guide circular shaft (62) is connected with an outer end plate (611) of the left telescopic suspension (61) and an inner end plate (613) of the right telescopic suspension (71), and two groups of third guide holes (615) are formed and are respectively arranged on the outer end plate (611) and the middle end plate (612).
5. Telescopic screed according to claim 3, characterised in that the sum of the lengths of the left (4) and right (5) second telescopic ironing board is equal to the basic section screed (1), the sum of the first and second traverse distances being equal to half of the basic section screed (1).
6. Telescopic screed according to claim 3, characterised in that the first and second lateral movement distances are equal to 1/4 of the base section screed (1).
7. A paver comprising the telescopic screed of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302045.6A CN112482149B (en) | 2020-11-19 | 2020-11-19 | Telescopic screed plate and paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302045.6A CN112482149B (en) | 2020-11-19 | 2020-11-19 | Telescopic screed plate and paver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112482149A CN112482149A (en) | 2021-03-12 |
| CN112482149B true CN112482149B (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011302045.6A Active CN112482149B (en) | 2020-11-19 | 2020-11-19 | Telescopic screed plate and paver |
Country Status (1)
| Country | Link |
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| CN (1) | CN112482149B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174817B (en) * | 2021-04-30 | 2023-07-14 | 徐工集团工程机械股份有限公司道路机械分公司 | Telescopic screed, paver and telescopic control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304890B (en) * | 2011-09-02 | 2013-06-05 | 徐州凯莫尔重工科技有限公司 | Hydraulic stepless telescopic mechanism of ironing board of paver |
| CN104120643B (en) * | 2014-08-06 | 2016-08-24 | 戴纳派克（中国）压实摊铺设备有限公司 | Freely-moving mangle and paver thereof |
| CN106192696B (en) * | 2016-08-29 | 2018-07-17 | 陕西中大机械集团有限责任公司 | Two-axis paver stretches ironing machine |
| CN108951378A (en) * | 2018-08-14 | 2018-12-07 | 三汽车制造有限公司 | A kind of ironing machine and paver |
| CN110004805B (en) * | 2019-05-15 | 2024-02-27 | 徐工集团工程机械股份有限公司道路机械分公司 | Telescoping device for screed |
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2020
- 2020-11-19 CN CN202011302045.6A patent/CN112482149B/en active Active
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| Publication number | Publication date |
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| CN112482149A (en) | 2021-03-12 |
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