CN113622261A - Helical blade and paver - Google Patents
Helical blade and paver Download PDFInfo
- Publication number
- CN113622261A CN113622261A CN202110995131.8A CN202110995131A CN113622261A CN 113622261 A CN113622261 A CN 113622261A CN 202110995131 A CN202110995131 A CN 202110995131A CN 113622261 A CN113622261 A CN 113622261A
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant belt
- blade
- stage
- helical blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- E01C19/12—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 distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/2045—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels spreading by means of an endless belt or like conveyor
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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
- E01C19/12—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 distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/209—Feeding the distribution means with transverse auger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a spiral blade and a paver, which comprise a blade body and a tile seat used for fixing the blade body, wherein the blade body comprises a working surface, a first-stage wear-resistant belt and a second-stage wear-resistant belt, the first-stage wear-resistant belt is positioned on the inner side of the second-stage wear-resistant belt, and the working surface is positioned on the inner side of the first-stage wear-resistant belt. According to the invention, the double wear-resistant belts are arranged on the working surface, wherein the first-stage wear-resistant belt is a main wear-resistant belt, and the second-stage wear-resistant belt is an auxiliary wear-resistant belt, so that the wear resistance of the easily worn part of the blade can be effectively improved through the structural design. The invention can be cast and molded at one time, does not increase the secondary processing procedure of the blade, is beneficial to industrialized application and popularization, and effectively reduces the cost of the paver.
Description
Technical Field
The invention relates to the technical field of road machinery, in particular to a helical blade and a paver.
Background
The paver is an engineering machine used for construction operation of base courses and surface courses of various road pavements, and is widely applied to pavement construction engineering of expressways and various grades of roads. The helical blade is an important part in a material distribution system of the paver, and has the function of conveying the mixed material in the material distribution groove to the scraper material conveying device in a left-right transverse mode to the full width of the material distribution groove so as to meet the operation requirement of the whole paver. The design of the blades not only affects the wear resistance and the operation efficiency of the whole machine, but also affects the operation quality of the whole machine and the pavement forming effect.
The material of the helical blade is high-chromium cast iron or high-manganese steel generally. The helical blade cast by high-chromium cast iron has high hardness and good wear resistance, but the toughness is relatively poor; the helical blade cast by high manganese steel has good toughness, but relatively low hardness and poor wear resistance. In order to increase the wear resistance of the helical blade, the general method adopted at present is to improve the surface hardness of the blade, and the method comprises the steps of spraying a wear-resistant layer on the surface of the helical blade or surfacing hard alloy and the like. Although the method can better improve the wear resistance of the helical blade, a secondary process is required, and the cost of related materials is higher, so that the overall price of the blade is higher; meanwhile, the process has low production efficiency and is not beneficial to large-scale popularization and use on the paver.
The construction technology of the existing paver is developed towards the direction of large width and large thickness, the working strength of the whole paver is multiplied, if the wear resistance of the helical blade is poor, the early rapid wear, a large amount of material waste, the construction cost of a user and the operation quality of the whole paver are reduced. Frequent blade replacement caused by insufficient wear resistance of the helical blades also increases the labor intensity of field workers, consumes a large amount of manpower and material resources and affects the working efficiency. Therefore, the service life of the spiral blade of the paver is prolonged, and the method has very important significance.
Disclosure of Invention
The invention aims to provide a spiral blade and a paver, which can improve the adaptability of the spiral blade of the paver to different materials, effectively improve the wear resistance of the blade, effectively weaken separation of material and avoid reducing the normal material separation capability of the blade.
The invention adopts the following technical scheme for realizing the aim of the invention:
the invention provides a spiral blade which comprises a blade body and a tile seat used for fixing the blade body, wherein the blade body comprises a working surface, a first-stage wear-resistant belt and a second-stage wear-resistant belt, the first-stage wear-resistant belt is positioned on the inner side of the second-stage wear-resistant belt, and the working surface is positioned on the inner side of the first-stage wear-resistant belt.
Furthermore, rib plates which are distributed circumferentially are arranged between the working face and the first-stage wear-resistant belt as well as between the first-stage wear-resistant belt and the second-stage wear-resistant belt.
Further, the thicknesses of the working surface, the first-stage wear-resistant belt and the second-stage wear-resistant belt become smaller step by step along with the increase of the diameter size.
Furthermore, the surface of the first-stage wear-resistant belt is provided with a groove.
Further, the groove is hexagonal in shape.
Further, a cylinder is arranged in the groove.
Further, the size of opposite sides of the groove is not more than 28mm, and the depth of the groove is not more than 5 m.
Furthermore, the outer circular surface of the blade body is provided with transverse wear-resistant belts which are distributed circumferentially.
Furthermore, the material facing surface of the tile seat is in an arc-shaped curved surface.
The invention provides a paver which comprises the helical blade.
The invention has the following beneficial effects:
according to the invention, the double wear-resistant belt design is arranged on the working surface, wherein the first-stage wear-resistant belt is a main wear-resistant belt, and the second-stage wear-resistant belt is an auxiliary wear-resistant belt, so that the wear resistance of the easily worn part of the blade can be effectively improved through the structural design;
the invention can be cast and molded at one time, does not increase the secondary processing procedure of the blade, is beneficial to industrialized application and popularization, and effectively reduces the cost of the paver.
Drawings
FIG. 1 is a front view of a helical blade according to one embodiment of the present invention;
FIG. 2 is a left side cross-sectional view of a helical blade according to one embodiment of the present invention;
FIG. 3 is a top view of a helical blade according to one embodiment of the present invention.
Detailed Description
The invention is further described with reference to specific examples. 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, 2, and 3, the spiral blade of the paver provided in the embodiment of the present invention includes a blade body 1 and a shoe 2 for fixing the blade body 1, wherein the blade body 1 is designed with three working surfaces of different thicknesses, i.e., a working surface 3, a first-stage wear-resistant belt 4, and a second-stage wear-resistant belt 5, the thickness of the working surface 3 is the largest, and the thicknesses of the first-stage wear-resistant belt 4 and the second-stage wear-resistant belt 5 are gradually reduced.
The outer circular surface 6 of the vane body 1 is provided with transverse wear-resistant belts 7 which are distributed circumferentially, and the length of the wear-resistant belts 7 is the same as the thickness of the vane. The design of the wear-resistant belt 7 is added, and the wear resistance of the outer circular surface 6 is increased; meanwhile, the wear-resistant belts 7 have a material storage function, and a small amount of adhered materials on the surfaces reduce the abrasion of the outer circular surfaces.
The first-stage wear-resistant belt 4 is designed by adopting a single-row hexagonal groove 8, the number of the single-row hexagonal grooves is controlled to be not more than 10, the size of the opposite side of each groove 8 is not more than 28mm, and the depth of each groove 8 is not more than 5 m. The design of the groove 8 added on the first-stage wear-resistant belt 4 can protect the blade matrix by accumulating a part of materials, and the service life of the blade matrix is prolonged; meanwhile, the motion state of material particles can be effectively changed, the axial component force of the material particles is increased, the radial component force is weakened, the material accumulation in the circumferential direction is favorably reduced, and the segregation is reduced; and the quantity and the area of the grooves 8 are controlled, so that the normal material distributing capacity of the blades can be ensured.
The cylinder 11 is arranged in the groove 8, and the cylinder 11 is designed to more effectively gather materials in the groove, and particularly plays a role of gathering a 'core' for the materials when the materials are relatively loose.
The material facing surface of the tile seat 2 adopts the reinforced design of an arc curved surface 10. The material facing surface of the boss of the blade mounting hole of the tile seat 2 adopts a circular arc design, so that the smooth sliding of materials on the surface of the material facing surface is facilitated, and the abrasion to the boss is reduced.
In the embodiment of the invention, the working surface 3 is provided with the double wear-resistant belt structure, so that in the process of conveying materials, part of the materials are adhered to the groove 8, the rib plate 9 and the step of the wear-resistant belt, and the wear resistance of the spiral blade of the paver can be improved. Meanwhile, the design of the second-stage wear-resistant belt 5 greatly improves the wear resistance of the diameter excircle of the blade and prolongs the service life of the helical blade.
The invention also provides a paver which comprises the helical blade.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A helical blade, characterized by: the blade comprises a blade body and a tile seat used for fixing the blade body, wherein the blade body comprises a working face, a first-stage wear-resistant belt and a second-stage wear-resistant belt, the first-stage wear-resistant belt is positioned on the inner side of the second-stage wear-resistant belt, and the working face is positioned on the inner side of the first-stage wear-resistant belt.
2. The helical blade according to claim 1, wherein rib plates are circumferentially disposed between said working surface and said primary and secondary wear strips.
3. The helical blade of claim 1, wherein said working surface, said primary and secondary abradable bands are progressively smaller in thickness as the diameter increases in size.
4. A spiral vane as claimed in any one of claims 1 to 3 wherein the primary wear strips are grooved in their surfaces.
5. A spiral vane as claimed in claim 4 wherein the groove profile is hexagonal.
6. A screw blade according to claim 5, wherein the groove has a cylindrical shape disposed therein.
7. A spiral vane as claimed in claim 6 wherein the dimensions of the opposite sides of the groove do not exceed 28mm and the depth of the groove does not exceed 5 mm.
8. A spiral vane as claimed in claim 1 wherein the outer circumferential surface of the vane body is provided with circumferential transverse wear strips.
9. The helical blade as claimed in claim 1, wherein the material facing surface of said shoe is curved.
10. A paver comprising a helical blade as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995131.8A CN113622261B (en) | 2021-08-27 | 2021-08-27 | Helical blade and paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995131.8A CN113622261B (en) | 2021-08-27 | 2021-08-27 | Helical blade and paver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113622261A true CN113622261A (en) | 2021-11-09 |
| CN113622261B CN113622261B (en) | 2023-04-21 |
Family
ID=78388112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995131.8A Active CN113622261B (en) | 2021-08-27 | 2021-08-27 | Helical blade and paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113622261B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514896A (en) * | 2011-12-07 | 2012-06-27 | 中联重科股份有限公司 | Spiral material conveying device and paver |
| CN202316036U (en) * | 2011-10-09 | 2012-07-11 | 广东新劲刚超硬材料有限公司 | Shock-resisting wearable helical blade |
| CN102587260A (en) * | 2012-02-15 | 2012-07-18 | 三一重工股份有限公司 | Paver and helical blade thereof |
| CN111827049A (en) * | 2020-06-24 | 2020-10-27 | 石卫东 | A kind of paver screw blade and paver |
| CN212714387U (en) * | 2020-06-28 | 2021-03-16 | 三一汽车制造有限公司 | Spiral feed divider and paver |
-
2021
- 2021-08-27 CN CN202110995131.8A patent/CN113622261B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202316036U (en) * | 2011-10-09 | 2012-07-11 | 广东新劲刚超硬材料有限公司 | Shock-resisting wearable helical blade |
| CN102514896A (en) * | 2011-12-07 | 2012-06-27 | 中联重科股份有限公司 | Spiral material conveying device and paver |
| CN102587260A (en) * | 2012-02-15 | 2012-07-18 | 三一重工股份有限公司 | Paver and helical blade thereof |
| CN111827049A (en) * | 2020-06-24 | 2020-10-27 | 石卫东 | A kind of paver screw blade and paver |
| CN212714387U (en) * | 2020-06-28 | 2021-03-16 | 三一汽车制造有限公司 | Spiral feed divider and paver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113622261B (en) | 2023-04-21 |
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