CN210702361U - Compound auger blade of paver distributing device - Google Patents
Compound auger blade of paver distributing device Download PDFInfo
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- CN210702361U CN210702361U CN201921551305.6U CN201921551305U CN210702361U CN 210702361 U CN210702361 U CN 210702361U CN 201921551305 U CN201921551305 U CN 201921551305U CN 210702361 U CN210702361 U CN 210702361U
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Abstract
The utility model belongs to the technical field of spreading machine distributing devices, in particular to a composite auger blade of a spreading machine distributor; the root of the blade extends axially to form a tile-shaped tile shaft opening, a reinforcing member is wrapped inside the blade, the reinforcing member is a fan-shaped sheet structure formed by extending along the radial direction of the blade, and the reinforcing member and the blade are fixedly connected together to form an integrated structure; the reinforcing member and the blade are made of different metal materials, wherein the wear resistance of the material used by the blade is better than that of the material used by the reinforcing member, and the strength of the material used by the reinforcing member is better than that of the material used by the blade; the utility model discloses can solve the problem that the screw feeder blade among the present paver distributing device is easy to be cracked, is worn and torn, life is short.
Description
Technical Field
The utility model belongs to the technical field of the paver distributing device, especially, relate to a compound screw feeder blade of paver distributing device.
Background
The front and the back of the paver are provided with two auger type distributing devices, the helical blade of each distributing device is formed by combining single helical blades which are formed by casting and comprise tile shaft openings and semicircular blades, and the helical directions of the single helical blades of the front and the back distributing devices are opposite and the shapes of the single helical blades are symmetrical. The motion principle is as follows: the screw shaft with the helical blades rotates in the distributing chute, so that the material flowing into the distributing chute moves towards two sides (namely axial movement) along the distributing chute under the combined action of the power of the rotating blades, the gravity of the material and the friction force of the distributing chute, and does not rotate (namely circular movement) together with the helical blades. In the process, a large friction force exists between the helical blade and the materials (the friction forces of the materials are different), and the impact action of different materials is borne, so that the helical blade is broken if massive hard materials are doped in the materials.
The blades of the paver on the market are generally made of high manganese steel or wear-resistant cast iron and are made of a single material, when the blades are made of the wear-resistant cast iron, although the blades are good in wear resistance, the blades are hard and brittle and easy to break, and when the blades are made of the high manganese steel, although products are not easy to break, the wear resistance is poor, and the service life cannot be guaranteed.
Disclosure of Invention
In view of this, the utility model aims at providing a paver distributing device composite screw feeder blade can solve the problem that the screw feeder blade among the present paver distributing device is easy to fracture, wearing and tearing, short in service life.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the root of the blade extends axially to form a tile-shaped tile shaft opening; the blade is internally wrapped with a reinforcing member which is a fan-shaped sheet structure formed by extending along the radial direction of the blade, and the reinforcing member is fixedly connected with the blade to form an integrated structure; and the reinforcing member and the blade are made of different metal materials, wherein the wear resistance of the material used by the blade is better than that of the material used by the reinforcing member, and the strength of the material used by the reinforcing member is better than that of the material used by the blade.
Furthermore, the surface area of the reinforcing member accounts for 10% -80% of the surface area of the blade, and the edge of the outer edge profile of the reinforcing member is a concave-convex edge.
Further, the reinforcing member adopts a steel mesh, and the hollowing rate of the steel mesh is not less than 50%.
Furthermore, the steel tile comprises an arc-shaped inserting steel sheet, the inserting steel sheet is wrapped at the inner part of the tile shaft opening and fixedly connected with the tile shaft opening to form an integrated structure, and the inserting steel sheet and the reinforcing member are made of the same material.
Furthermore, the reinforcing member is made of a metal sheet, a plurality of holes are formed in the metal sheet, and the hollow-out rate of the metal sheet is not less than 50%.
Further, the root of the metal sheet extends axially to form a tile-shaped reinforcing enclosure.
Furthermore, a plurality of positioning columns are arranged on the surface of the metal sheet.
Furthermore, the reinforcing member is made of carbon steel, and the blades are made of high-chromium cast iron.
Compared with the prior art, the utility model has the advantages of following:
the utility model provides a composite metal blade, through built-in reinforcement member in the screw feeder blade, the better reinforcement member of intensity and the better blade of wearability are fused as an organic whole, the advantage of two kinds of materials has been combined, make the blade still have higher intensity when having good wearability, be located the easy fracture position of blade sector because of the reinforcement member, consequently, when the blade is when bearing the impact of different materials, can prevent the blade fracture, the blade surface has good wearability simultaneously, can increase of service life.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of the present invention in a perspective view of a reinforcing member;
FIG. 2 is a schematic structural view of the present invention in a state where the reinforcing member is not seen through;
FIG. 3 is a schematic structural view of a steel net used as a reinforcing member;
FIG. 4 is a schematic structural view of the inserted steel sheet;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic structural view of a steel mesh extending to the vicinity of the blade root when the steel mesh and the plug-in steel sheet are used together;
FIG. 7 is a schematic structural view showing steel nets distributed in the middle of the blade when the steel nets and the plug-in steel sheets are used simultaneously;
FIG. 8 is a schematic structural view of the steel mesh extending to the vicinity of the blade edge when the steel mesh and the plug-in steel sheet are used together;
FIG. 9 is a schematic structural view of a reinforcing member made of a metal sheet;
FIG. 10 is a schematic view of the distribution structure of the positioning pillars on the metal sheet;
fig. 11 is a schematic structural view of a white mold.
Description of reference numerals:
1-a blade; 11-tile shaft opening; 111-mounting holes; 2-a reinforcing member; 21-holes; 22-reinforcing enclosure; 23-a locating post; 3-white mould; 31-an exhaust port; 4-inserting steel sheets; 41-fitting the mounting hole.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-11, a composite auger blade of a spreader distributor of a paver, the root of the blade 1 extends axially to form a tile-shaped tile shaft port 11, the tile shaft port 11 is used for connecting the blade 1 to a distributing shaft of the distributor through a bolt, and the tile shaft port 11 is provided with a mounting hole 111 for bolt connection; the blade 1 is internally wrapped with a reinforcing member 2, the reinforcing member 2 is a fan-shaped sheet structure formed by extending along the radial direction of the blade 1, and the reinforcing member 2 and the blade 1 are fixedly connected together to form an integrated structure; and, the reinforcement component 2 and the blade 1 adopt different metal materials, wherein, the wear resistance of the material used for the blade 1 is better than that of the material used for the reinforcement component 2, and the strength of the material used for the reinforcement component 2 is better than that of the material used for the blade 1. In this embodiment, the reinforcing member 2 is made of carbon steel, and the blade 1 is made of high-chromium cast iron.
In this embodiment, the thickness of the reinforcing member 2 is about 1.5 to 8 mm; the position of the reinforcing member 2 in the blade 1 can be placed at the root of the blade 1 or the middle of the blade 1, and can also extend to the edge of the blade 1, preferably, the reinforcing member 2 is placed at the position of the fan surface of the blade 1 close to the root, because the material resistance from the fan surface of the blade 1 can be transmitted to the root of the blade 1 or along the mounting hole 111 of the tile shaft opening 11 through the fan surface of the blade 1, the reinforcing member 2 just prevents the force from being transmitted to the tile shaft opening 11, and the blade 1 can be prevented from being broken.
Preferably, the surface area of the stiffening member 2 is between 10% and 80% of the surface area of the blade 1. The size of the reinforcing member 2 is moderate, the reinforcing member 2 is too small to achieve the purpose of improving the strength of the blade 1, and the reinforcing member 2 is too large to form good package by molten metal.
Preferably, the outer edge profile edge of the reinforcement member 2 is a concave-convex edge. Thus, after molten metal is welded with the reinforcing member 2, the molten metal has a wrapping force on the reinforcing member 2, so that the reinforcing member 2 is prevented from being obviously layered after the molten metal is solidified, and the overall rigidity of the blade 1 is reduced.
The reinforcing member 2 can adopt a steel mesh (as shown in fig. 3) alone, and the hollowing ratio of the steel mesh is not less than 50%.
Preferably, an arc-shaped inserting steel sheet 4 can be additionally arranged, a steel mesh and inserting steel sheet 4 combination mode is adopted, the inserting steel sheet 4 is structured as shown in fig. 4 and 5, the inserting steel sheet 4 is wrapped inside the tile shaft opening 11 and fixedly connected with the tile shaft opening 11 to form an integrated structure, a matching mounting hole 41 matched with the mounting hole 111 is formed in the inserting steel sheet 4, bolts are convenient to mount, and the inserting steel sheet 4 and the reinforcing member 2 are made of the same material. Similarly, the surface area of the steel mesh accounts for 10% -80% of the surface area of the blade 1, the position and size of the steel mesh in the blade 1 can be changed in various ways, and the steel mesh can be distributed only in the middle of the blade 1 (as shown in fig. 7); the steel net can also extend along the radial direction of the blade 1 from the root of the blade 1, and in this case, the steel net can only extend to the vicinity of the root of the blade 1 (as shown in fig. 6) or the vicinity of the edge of the blade 1 (as shown in fig. 8); preferably in a distribution starting from the root of the blade 1 with steel mesh.
As an alternative, the reinforcing member 2 may be a metal sheet, the metal sheet is provided with a plurality of holes 21, and the hollowing rate of the metal sheet is not less than 50%; and the root of the metal sheet extends axially to form a tile-shaped reinforcing enclosure 22 (as shown in fig. 9), and the reinforcing enclosure 22 is wrapped at the tile shaft opening 11 part and can be used for further enhancing the strength of the tile shaft opening 11 part.
As a preferable scheme, a plurality of positioning columns 23 (as shown in fig. 10) are arranged on the surface of the metal sheet; in the process of casting and forming the composite blade 1, the metal sheet is conveniently positioned, so that the position of the metal sheet in the blade 1 is as accurate as possible.
No matter adopt steel mesh or fretwork sheetmetal, the size and the shape of hole 21 are unrestricted, according to the shape structure decision of blade 1 product, but in order to guarantee at the fashioned in-process of blade 1 casting, reinforcing member 2 can well be wrapped up to blade 1 molten metal, consequently, reinforcing member 2's fretwork rate can not the undersize to guarantee that sheetmetal or steel mesh and molten metal form the liquid-solid complex.
The utility model discloses in the preparation method of compound screw feeder blade does: the blade 1 is manufactured by adopting a lost foam casting method, and comprises the following steps:
step A, placing a prefabricated reinforcing member 2 in a metal mold cavity to ensure accurate position; when the position of the reinforcing member 2 is determined, the reinforcing member 2 is ensured to be positioned at the position of the blade 1 sector close to the root after the blade 1 is cast. In order to ensure the accurate placement position of the reinforcing member 2, a plurality of positioning posts 23 are preset on the surface of the reinforcing member 2 to help positioning, and the size and shape of the positioning posts 23 are designed in such a way that the reinforcing member 2 is not easy to slide and the product is convenient to polish after being formed.
Step B, manufacturing a white mold 3: closing the dies and injecting EPC material in a pressurizing mode, wherein the EPC material adopts expandable polystyrene, the EPC material is cured and expanded to fill the die cavity, the reinforcing member 2 is wrapped to form a white die 3 and then taken out, in the process of injecting the EPC material in a pressurizing mode, 0.6Mp of water mixed polystyrene foam is injected under the air pressure of 0.6Mp, and then the foam is gasified, grown and molded under the condition that the steam pressure is 0.4 Mp.
The EPC material is guaranteed to be filled in the cavity in the white mold 3 preparation process, the hollow rate of the reinforcing member 2 is critical and is not less than 50%, if the hollow rate of the reinforcing member 2 is insufficient, the EPC material is easily filled in the punching process to be blocked, the white mold 3 is failed to manufacture, and the problems of casting air holes, inclusion and the like are caused.
Step C, putting the prepared white mold 3 into a drying room for fully drying, wherein the drying is carried out in a room with relatively good sealing performance, a heater is arranged in the drying room to increase the indoor temperature, the indoor temperature of the drying room is kept at 45-55 ℃, the drying time is about 24 hours, after the drying is finished, a moisture drying instrument is used for measuring the moisture content of the white mold, and the moisture content is ensured to be 0.5g/cm after the drying is finished3The dried white dies 3 are combined into strings and then dipped with fire-resistant paint, so that the products are easy to demould after being solidified and formed, the white dies 3 dipped with the paint, namely, ash products, are placed into a drying room for drying, so that the ash products are fully dried, a moisture drying instrument is used for measuring the moisture content of the ash products, and the moisture content is ensured to be 1.5g/cm after the drying is finished3The following; the white mold 3 is fully dried in order to avoid the phenomenon that the air holes are generated inside the product in the product forming process due to insufficient drying to form waste products.
And D, carrying out box burying molding on the dried ash product, conveying the molded sand box to a pouring area for pouring molding, pouring molten metal (high-chromium cast iron molten metal) into the sand box, gasifying EPC material to form a cavity in the pouring process, and then replacing the cavity with the molten metal to form a complete composite blade casting wrapping the reinforcing member 2. In the process, the thickness and the hollowing rate of the reinforcing member 2 are influenced, the reinforcing member 2 is too thick, the hollowing rate of the reinforcing member 2 is insufficient, and a large amount of gas is easily generated in the molten metal pouring process, so that a large amount of air holes and poor cold shut of a product are generated. In addition, in the process of pouring the molten metal, the pouring speed is increased, the time for punching the mold is reduced, and the cavity is quickly filled with the molten metal.
The surface of the white mold 3 is provided with an exhaust port 31 (as shown in fig. 11), which provides an exhaust passage in the casting process on one hand, so that the gas in the cavity and the gas generated by the reinforcing member 2 when being heated can be quickly exhausted out of the cavity, and the occurrence of product defects is prevented; on the other hand, in order to improve the surface quality of products, when the sand box is used for placing the ash, the exhaust port 31 is ensured to be positioned at the highest point of a pouring system, when the sand box is used for pouring, the exhaust port 31 is positioned at the foremost end of pouring, the molten metal firstly enters the area, the EPC material at the position is gasified to form a cavity to form an exhaust passage, and the gas is exhausted into the sand box through the exhaust passage and is exhausted to the outside through a sand gap; when the pouring process is finished, some final residual slag gases are mainly discharged through the exhaust end, if the exhaust port 31 is not arranged, the surface quality of the product at the exhaust position is poor, such as holes and slag inclusion, on the surface, when the exhaust port 31 is additionally arranged, the position can be partially filled with molten metal, and after the product is formed, the position is polished to be flat, so that the surface quality of the product is ensured.
As another embodiment of the preparation method of the composite auger blade of the spreader distributor, the blade 1 is manufactured by a sand casting method, which comprises the following steps:
and step A, manufacturing a sand mold (or a sample) in advance.
And step B, sleeving the sand box on the mold, injecting the mixed molding sand into the sand box and compacting, wherein the molding sand can be resin sand or clay sand (when the resin sand is adopted, the resin sand contains resin and curing agent and can be automatically solidified, the clay sand is the molding sand mixed by water, coal powder and the like in advance), then taking out the mold, and combining the split cavities of each part together to form the integral cavity model with the product-shaped cavity.
And C, placing the reinforcing member 2 at a specific position in the integral cavity, and ensuring that the reinforcing member 2 is positioned at the position, close to the root, of the sector of the blade 1 after the blade 1 is cast and molded when the placement position of the reinforcing member 2 is determined.
And D, closing the box and pouring molten metal (high-chromium cast iron molten metal), and forming a composite blade casting wrapping the reinforcing member 2 after the molten metal is solidified.
The utility model provides a composite metal blade, and adopt a solid-liquid composite technology to prepare this blade 1's method, through built-in reinforcement member 2 in screw feeder blade 1, combine the better reinforcement member 2 of intensity and the better blade 1 of wearability together, the advantage of two kinds of materials has been combined, make blade 1 still have higher intensity when having good wearability, be close root easy fracture position because of reinforcement member 2 is located blade 1 sector, consequently, when blade 1 is when bearing the impact of different materials and act on, can prevent blade 1 fracture, blade 1 surface has good wearability simultaneously, can increase of service life.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a compound screw feeder blade of paver distributing device which characterized in that: the root part of the blade (1) extends axially to form a tile-shaped tile shaft opening (11); the blade (1) is internally wrapped with a reinforcing component (2), the reinforcing component (2) is a fan-shaped sheet structure formed by extending along the radial direction of the blade (1), and the reinforcing component (2) and the blade (1) are fixedly connected together to form an integrated structure; and the reinforcing member (2) and the blade (1) are made of different metal materials, wherein the wear resistance of the material used by the blade (1) is better than that of the material used by the reinforcing member (2), and the strength of the material used by the reinforcing member (2) is better than that of the material used by the blade (1).
2. The paver distributor composite auger blade of claim 1, wherein: the surface area of the reinforcing member (2) accounts for 10% -80% of the surface area of the blade (1), and the edge of the outer edge profile of the reinforcing member (2) is a concave-convex edge.
3. The paver distributor composite auger blade of claim 2, wherein: the reinforcing component (2) adopts a steel mesh, and the hollowing rate of the steel mesh is not less than 50%.
4. The paver distributor composite auger blade of claim 3, wherein: the tile shaft opening and reinforcing structure is characterized by further comprising an arc-shaped inserting steel sheet (4), the inserting steel sheet (4) is wrapped inside the tile shaft opening (11) and fixedly connected with the tile shaft opening (11) to form an integrated structure, and the inserting steel sheet (4) and the reinforcing member (2) are made of the same material.
5. The paver distributor composite auger blade of claim 2, wherein: the reinforcing member (2) is made of a metal sheet, a plurality of holes (21) are formed in the metal sheet, and the hollow-out rate of the metal sheet is not less than 50%.
6. The paver distributor composite auger blade of claim 5, wherein: the root of the metal sheet extends axially to form a tile-shaped reinforcing enclosure (22); the surface of the metal sheet is provided with a plurality of positioning columns (23).
7. The paver distributor composite auger blade of claim 1, wherein: the reinforcing component (2) is made of carbon steel, and the blades (1) are made of high-chromium cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551305.6U CN210702361U (en) | 2019-09-18 | 2019-09-18 | Compound auger blade of paver distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551305.6U CN210702361U (en) | 2019-09-18 | 2019-09-18 | Compound auger blade of paver distributing device |
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| Publication Number | Publication Date |
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| CN210702361U true CN210702361U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921551305.6U Active CN210702361U (en) | 2019-09-18 | 2019-09-18 | Compound auger blade of paver distributing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434290A (en) * | 2019-09-18 | 2019-11-12 | 石卫东 | A kind of compound screw feeder blade of paver distributing device and preparation method thereof |
| US12000096B2 (en) | 2021-02-02 | 2024-06-04 | Caterpillar Paving Products Inc. | Auger segment and systems, assemblies, and methods thereof |
-
2019
- 2019-09-18 CN CN201921551305.6U patent/CN210702361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434290A (en) * | 2019-09-18 | 2019-11-12 | 石卫东 | A kind of compound screw feeder blade of paver distributing device and preparation method thereof |
| US12000096B2 (en) | 2021-02-02 | 2024-06-04 | Caterpillar Paving Products Inc. | Auger segment and systems, assemblies, and methods thereof |
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