CN114684549B - Spiral blade and spiral conveyer based on bionic non-smooth surface and flanging structure - Google Patents
Spiral blade and spiral conveyer based on bionic non-smooth surface and flanging structure Download PDFInfo
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- CN114684549B CN114684549B CN202210409066.0A CN202210409066A CN114684549B CN 114684549 B CN114684549 B CN 114684549B CN 202210409066 A CN202210409066 A CN 202210409066A CN 114684549 B CN114684549 B CN 114684549B
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- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 43
- 238000009957 hemming Methods 0.000 claims description 32
- 238000011161 development Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000003592 biomimetic effect Effects 0.000 claims 12
- 239000000463 material Substances 0.000 abstract description 48
- 230000008859 change Effects 0.000 abstract description 4
- 239000011295 pitch Substances 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000011236 particulate material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 102100021807 ER degradation-enhancing alpha-mannosidase-like protein 1 Human genes 0.000 description 1
- 101000895701 Homo sapiens ER degradation-enhancing alpha-mannosidase-like protein 1 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
The invention provides a spiral blade and a spiral conveyor based on a bionic non-smooth surface and a flanging structure, wherein the surface of the spiral blade is provided with the bionic non-smooth texture, the edge of the spiral blade is provided with the flanging structure, and the flanging structure is continuously or discontinuously distributed on the spiral path of the spiral blade. The spiral conveyor comprises the spiral blade and the spiral shaft based on the bionic non-smooth surface and the flanging structure, wherein the spiral blade with the continuous flanging structure or/and the spiral blade with the discontinuous flanging structure are arranged on the spiral shaft. The screw shaft close to the feed inlet is provided with a screw blade with a continuous flanging structure, and the screw shaft close to the discharge outlet is provided with a screw blade with a discontinuous flanging structure. The invention can effectively change the flow direction of the material when the material is conveyed in the spiral conveyor, increase the filling coefficient of the material in the spiral conveyor and improve the conveying efficiency of the spiral conveyor.
Description
Technical Field
The invention relates to the field of material conveying, spiral conveying or bionic surface, in particular to a spiral blade and a spiral conveyor based on a bionic non-smooth surface and a flanging structure.
Background
The screw conveyer is a very common material conveying device, is widely applied to the fields of chemical industry, building materials, grains and the like, has the working principle that a motor is utilized to drive a screw blade to push materials for screw conveying, can horizontally, obliquely or vertically convey the materials, has the advantages of simple structure, small cross-sectional area, good tightness, convenient operation, easy maintenance, convenient sealing and conveying and the like, and is mainly used for conveying bulk materials such as cement, coal dust, mineral powder, feed, grains and the like.
The existing screw conveyor has basic use functions, but the following defects still exist: the existing screw conveyor has the problems of low conveying efficiency and high power consumption when conveying materials, so that the time for conveying the materials is long, energy is wasted and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the spiral blade based on the bionic non-smooth surface and the flanging structure, wherein the conveying resistance of the spiral conveyor when conveying materials can be effectively reduced by arranging the bionic non-smooth structures of different types on the spiral blade, the flowing direction of the materials can be effectively changed when the materials are conveyed in the spiral conveyor by arranging the flanging structures of different types on the outer diameter of the spiral blade, the filling coefficient of the materials in the spiral conveyor can be increased, the axial movement capacity of the materials can be enhanced, the conveying efficiency of the spiral conveyor can be effectively improved by arranging the bionic non-smooth structures and the flanging structures in the spiral conveyor, and the power consumption of the spiral conveyor can be reduced.
The present invention achieves the above technical object by the following means.
The spiral blade based on the bionic non-smooth surface and the flanging structure is characterized in that the bionic non-smooth texture is arranged on the surface of the spiral blade, the flanging structure is arranged at the edge of the spiral blade, and the flanging structure is continuously or discontinuously distributed on the spiral path of the spiral blade.
Further, the bionic non-smooth texture is a convex texture, and the cross section of the convex texture is semicircular or U-shaped or symmetrical arc or asymmetrical arc.
Further, the bionic non-smooth texture is a pit texture, and the cross section of the pit texture is conical, U-shaped or semicircular.
Further, the height or depth range of the bionic non-smooth texture is 1-5 mm, and the diameter range of the bionic non-smooth texture is 3-20 mm; on the development diagram of the single-pitch helical blade, a plurality of bionic non-smooth textures are distributed on a dividing circle concentric with the development diagram, and the interval range between every two adjacent dividing circles is 10-50 mm; the arc length between adjacent bionic non-smooth textures on the same dividing circle is 10-200 mm.
Further, the distributed bionic non-smooth texture on any one scale circle is staggered with the distributed bionic non-smooth texture on the adjacent scale circle.
Further, the thickness of the flanging structure is linearly or non-linearly reduced along the width direction; the thickness range of the edge folding structure is 1 mm-10 mm; the width of the flanging structure ranges from 5mm to 20mm.
Further, when the edge folding structures are discontinuously distributed on the spiral path of the spiral blade, the two ends of the edge folding structures are in smooth transition with the spiral blade, and the distance between the adjacent edge folding structures is not more than 50mm.
The spiral conveyor comprises the spiral blade and the spiral shaft based on the bionic non-smooth surface and the flanging structure, wherein the spiral blade with the continuous flanging structure or/and the spiral blade with the discontinuous flanging structure are arranged on the spiral shaft.
Further, a spiral blade with a continuous flanging structure is arranged on the spiral shaft close to the feed inlet, and a spiral blade with a discontinuous flanging structure is arranged on the spiral shaft close to the discharge outlet.
Further, the N spiral blades with the thread pitches with the discontinuous edge folding structures are set as discontinuous edge folding spiral blade groups, all or part of the discontinuous edge folding spiral blade groups are arranged on the spiral shaft, the shape or the cross section of the edge folding structures of the adjacent discontinuous edge folding spiral blade groups gradually change along the axial direction, and N is a natural number larger than 1.
The invention has the beneficial effects that:
1. according to the spiral blade based on the bionic non-smooth surface and the flanging structure, the bionic non-smooth texture is arranged on the surface of the spiral blade, materials are filled into the conveying groove through the feeding hole of the spiral conveyor, the motor drives the spiral shaft to rotate through the transmission mechanism, the spiral shaft rotates to drive the spiral blade to rotate, the rotating spiral blade pushes the materials in the conveying groove, the materials in the conveying groove are discharged through the discharging hole, the resistance of the materials when the spiral conveyor conveys the materials can be effectively reduced through the bionic non-smooth surface, the power loss of the spiral conveyor in the material conveying process is reduced, and the conveying efficiency of the spiral conveyor for conveying the materials is effectively improved.
2. According to the spiral blade based on the bionic non-smooth surface and the flanging structure, the flanging structure is arranged at the edge of the spiral blade, and is continuously or discontinuously distributed on the spiral path of the spiral blade, so that the flow direction of materials when the spiral conveyer conveys the materials can be effectively changed, the circumferential movement capacity of the materials is weakened, the axial movement capacity of the materials is enhanced, the capacity of the spiral conveyer at the feeding hole for grabbing the materials can be effectively enhanced by the flanging structure, the filling coefficient of the materials in the conveying groove is increased, the conveying efficiency of the spiral conveyer for conveying the materials is effectively improved, and the consumption power of the spiral conveyer is reduced.
3. According to the spiral blade based on the bionic non-smooth surface and the flanging structure, the thickness of the flanging structure linearly or nonlinearly decreases along the width direction, and/or when the flanging structure is discontinuously distributed on the spiral path of the spiral blade, the two ends of the flanging structure are smoothly transited with the spiral blade, so that the wear rate of the flanging structure in conveying materials can be reduced, and meanwhile, the resistance in the conveying process is reduced.
4. According to the spiral conveyor disclosed by the invention, the spiral shaft close to the feed inlet is provided with the spiral blade with the continuous flanging structure, the spiral shaft close to the discharge outlet is provided with the spiral blade with the discontinuous flanging structure, and the spiral blade with the continuous flanging structure can effectively enhance the material grabbing capacity of the spiral conveyor at the feed inlet and increase the filling coefficient of materials in the shell; the spiral blade of the discontinuous edge folding structure improves the filling coefficient and the mass flow rate of the spiral conveying equipment, and can improve the discharging efficiency.
Drawings
Fig. 1 is a schematic view of a screw conveyor according to the present invention.
Fig. 2 is a schematic view of the installation of a helical blade on a helical shaft according to the present invention.
FIG. 3 is a schematic view of the convex texture distribution in the developed view of the helical blade according to the present invention.
Fig. 4 is a schematic view of a convex texture according to the present invention.
Fig. 5 is a cross-sectional view of a continuous hemming structure according to the present invention.
FIG. 6 is a graph of fullness coefficients for a simulation test of an embodiment.
FIG. 7 is a mass flow rate graph of a simulation test of an embodiment.
FIG. 8 is a schematic view of a helical blade with a discontinuous hemming structure mounted on a helical shaft according to the present invention.
Fig. 9 is a schematic diagram showing pit texture distribution in an expanded view of a helical blade according to the present invention.
Fig. 10 is a front view of a discontinuous hemming structure according to the present invention.
FIG. 11 is a graph of fullness coefficients for a simulation test of example two.
FIG. 12 is a mass flow rate graph of a simulation test of example two.
Fig. 13 is a subjective schematic of a helical blade composed of a continuous type hemming structure and a discontinuous type hemming structure according to the present invention.
Fig. 14 is a cross-sectional view of different shapes of raised textures according to the present invention.
Fig. 15 is a cross-sectional view of a different shape of the hemming structure of the present invention.
Fig. 16 is a front view of a different shape of the discontinuous hemming structure of the present invention.
In the figure:
1-a base; 2-frequency converter; 3-an electric motor; 4-a first coupling; 5-a second coupling; 6-a feed inlet; 7-a dust cap; 8-sleeve; 9-a screw shaft; 10-helical blades; 11-a second fixed bearing; 12-a first fixed bearing; 13-a stand; 14-supporting frames; 15-a discharge hole; 16-bionic non-smooth texture; 17-hem structure.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 according to the specific circumstances.
As shown in fig. 2,3,4 and 5, the surface of the spiral blade 10 is provided with a bionic non-smooth texture 16, the edge of the spiral blade 10 is provided with a hemming structure 17, and the hemming structures 17 are continuously or discontinuously distributed on the spiral path of the spiral blade 10. The bionic non-smooth texture 16 is a convex texture, and the cross section of the convex texture is semicircular or U-shaped or symmetrical arc or asymmetrical arc. The bionic non-smooth texture 16 is a pit texture, and the cross section of the pit texture is conical, U-shaped or semicircular. The height or depth of the bionic non-smooth texture 16 ranges from 1mm to 5mm, and the diameter of the bionic non-smooth texture 16 ranges from 3mm to 20mm; on the development view of the single-pitch helical blade 10, a plurality of bionic non-smooth textures 16 are distributed on a dividing circle concentric with the development view, and the interval range between adjacent dividing circles is 10-50 mm; the arc length between adjacent bionic non-smooth textures 16 on the same dividing circle is 10-200 mm. The distributed bionic non-smooth texture 16 on any one pitch circle is staggered with the distributed bionic non-smooth texture 16 on its adjacent pitch circle.
In the first embodiment, as shown in fig. 1, the spiral conveyor of the invention comprises a sleeve 8, wherein a feed inlet 6 is connected to the upper side of one side of the sleeve 8, material is filled into the sleeve 8 through the feed inlet 6, a dust cover 7 is movably connected to the upper side of the feed inlet 6, the dust cover 7 has a certain protection function on the feed inlet 6, a discharge outlet 15 is connected to the lower side of the other side of the sleeve 8, and the material in the sleeve 8 is discharged through the discharge outlet 15. The sleeve 8 is internally provided with a first fixed bearing 12 and a second fixed bearing 11, the first fixed bearing 12 and the second fixed bearing 11 are used for supporting the screw shaft 9, and the screw shaft 9 is connected with a screw blade 10.
The surface of the spiral blade 10 is provided with a protruding texture, the protruding texture is a semicircular protruding texture, the diameter D 1 of the semicircular protruding texture is 8mm, and the height H 1 is 2mm. As shown in fig. 3, on the development of the single pitch helical blade 10, a plurality of the convex textures are distributed on equidistant circles concentric with the development, and the distance d 1 between adjacent equidistant circles is 30mm; the arc length between adjacent convex textures on the same equidistant circle is 10-200 mm. The convex textures distributed on any equidistant circle are identical to the convex textures distributed on the equidistant circle adjacent to the convex textures, and the convex textures are identical in central angle. The semicircular convex texture can effectively reduce the resistance of the materials when the spiral conveyer conveys the materials, reduce the power loss of the spiral conveyer in the material conveying process and improve the conveying efficiency of the spiral conveyer for conveying the materials.
The edge of the spiral blade 10 is provided with a flanging structure 17, the flanging structures 17 are continuously distributed on the spiral path of the spiral blade 10, the spiral blade 10 of the whole spiral shaft 9 of the embodiment 1 is provided with the flanging structures 17, the distribution mode of the flanging structures 17 can be understood to be whole-shaft distribution, the width B of the flanging structures 17 is 10mm, and the flanging structures 17 can effectively change the flow direction of materials when the spiral conveyor conveys the materials, weaken the circumferential movement capacity of the materials and enhance the axial movement capacity of the materials; the flanging structure 17 can effectively enhance the material grabbing capacity of the spiral conveyor at the feed inlet 6 and increase the filling coefficient of the material in the sleeve 8; the flanging structure 17 can effectively improve the conveying efficiency of conveying materials by the screw conveyor and reduce the consumption power of the screw conveyor.
One end of the screw shaft 9 is connected with the motor 3, the motor 3 runs and drives the screw shaft 9 to rotate through a transmission mechanism, the screw shaft 9 rotates and drives the screw blade 10 to perform rotary motion, the screw blade 10 pushes materials in the sleeve 8 to convey, the other side of the motor 3 is connected with the frequency converter 2, and the frequency converter 2 can regulate the rotating speed of the motor 3, so that the screw conveyor is suitable for workplaces with different rotating speed requirements. The motor 3 and the frequency converter 2 are connected with the base 1 below, the base 1 can firmly support the motor 3 and the frequency converter 2 in operation. A base 13 is fixed below the sleeve 8, the base 13 is composed of three supporting frames 14 which are uniformly distributed and have completely consistent specifications, and the base 13 firmly supports the screw conveyor for conveying materials.
In the second embodiment, as shown in fig. 8, 9 and 10, on the basis of the first embodiment, the shape of the bionic non-smooth structure 16 is a conical pit structure, the diameter D 2 of the conical pit structure is 5mm, the depth H 2 of the conical pit structure is 2mm, on a single pitch helical blade unfolding diagram, the pit structures distributed on any equidistant circle are staggered with the pit structures distributed on the equidistant circle adjacent to the same, 3 convex structures are seen on a straight line L 2, and 2 convex structures on an adjacent straight line L 1 are not on the same dividing circle. As shown in fig. 14, the dimple texture shape may be conical, U-shaped, and rectangular.
As shown in fig. 10 and 15, the edge of the spiral blade 10 is provided with a hemming structure 17, the hemming structure 17 is discontinuously distributed on the spiral path of the spiral blade 10, and the spiral blade 10 of the whole spiral shaft 9 of embodiment 2 is provided with the discontinuously distributed hemming structure 17, which can be understood as that the discontinuously distributed hemming structure 17 is distributed in a whole shaft manner, as shown in fig. 8. The thickness of the flanging structure 17 decreases linearly or nonlinearly along the width direction; the thickness range of the edge folding structure 17 is 1 mm-10 mm; the width of the hemming structure 17 ranges from 5mm to 20mm. When the edge folding structures 17 are discontinuously distributed on the spiral path of the spiral blade 10, the two ends of the edge folding structures 17 are in smooth transition with the spiral blade 10, and the distance between the adjacent edge folding structures 17 is not more than 50mm. The ratio of the maximum width B of the non-continuous folded structure 17 to the length or arc length S of the folded structure 17 is 1: and 5, the two ends of the edge folding structure 17 are in smooth transition with the spiral blade 10, and after the shape and the arrangement mode of the bionic non-smooth structure are changed and the type of the edge folding structure is changed, the spiral conveyor can be adapted to conveying different materials. The shape of the hemming structure 17 is shown in fig. 16, and the hemming structure may be a U-shaped structure, a symmetrical arc or an asymmetrical arc.
In a third embodiment, a screw conveyor includes the spiral blade 10 and the spiral shaft 10 based on the bionic non-smooth surface and the hemming structure, the spiral blade 10 with the continuous hemming structure 17 is installed on the spiral shaft 10 near the feeding hole, and the spiral blade 10 with the discontinuous hemming structure 17 is installed on the spiral shaft 10 near the discharging hole, as shown in fig. 13.
In the fourth embodiment, on the basis of the third embodiment, the N spiral blades 10 with pitches having the discontinuous edge folding structures 17 are set as discontinuous edge folding spiral blade groups, all or part of the discontinuous edge folding spiral blade groups are installed on the spiral shaft 10, the edge folding structures 17 of adjacent discontinuous edge folding spiral blade groups gradually change in shape or cross section along the axial direction, and N is a natural number greater than 1.
Screw conveyors in examples one and two were modeled using SolidWorks, the screw pitch and screw diameter were 100mm and 105mm, the screw shaft and outer tube diameter were 28mm and 118mm, respectively, 12 screw pitches were used, the length of the screw shaft was 1240mm, simulation tests were performed on the models using EDEM discrete element software, the density of the particulate material was 900kg/m 3, the Poisson's ratio was 0.3, the shear modulus was 8.62X10 7 Pa, the coefficient of restitution between the particulate material and the particulate material was 0.61, the static friction coefficient was 0.49, the rolling friction coefficient was 0.07, the density of the metal material was 7.8X10 3kg/m3, the Poisson's ratio was 0.3, the shear modulus was 8X 10 10 Pa, the coefficient of restitution between the particulate material and the metal material was 0.64, the static friction coefficient was 0.34, the rolling friction coefficient was 0.02, and the rotational speed of the screw shaft was 400r/min. As shown in fig. 6,7, 11 and 12, by analyzing the simulation test data, it was found that the filling factor of the discontinuous hemming screw conveyor was 22.42% higher than that of the continuous hemming screw conveyor, and the mass flow rate of the discontinuous hemming screw conveyor was 24.11% higher than that of the continuous hemming screw conveyor, when the screw conveyor was stably conveyed.
It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. The spiral blade based on the bionic non-smooth surface and the flanging structure is characterized in that the surface of the spiral blade (10) is provided with a bionic non-smooth texture (16), the edge of the spiral blade (10) is provided with the flanging structure (17), and the flanging structure (17) is discontinuously distributed on the spiral path of the spiral blade (10); the thickness of the flanging structure (17) linearly or nonlinearly decreases along the width direction; the two ends of the edge folding structure (17) are in smooth transition with the spiral blade (10), and the distance between the adjacent edge folding structures (17) is not more than 50mm.
2. The helical blade based on a biomimetic non-smooth surface and a hemming structure according to claim 1, wherein the biomimetic non-smooth texture (16) is a raised texture, the cross section of which is semi-circular or U-shaped or symmetrical or asymmetrical.
3. The helical blade based on a biomimetic non-smooth surface and a hemming structure according to claim 1, wherein the biomimetic non-smooth texture (16) is a pit texture, the cross section of which is conical or U-shaped or semi-circular.
4. The helical blade based on a biomimetic non-smooth surface and a hemming structure according to claim 1, wherein the biomimetic non-smooth texture (16) has a height or depth in the range of 1-5 mm, and the biomimetic non-smooth texture (16) has a diameter in the range of 3-20 mm; on the development view of the single-pitch helical blade (10), a plurality of bionic non-smooth textures (16) are distributed on a dividing circle concentric with the development view, and the interval range between adjacent dividing circles is 10-50 mm; the arc length between adjacent bionic non-smooth textures (16) on the same dividing circle is 10-200 mm.
5. The helical blade based on a biomimetic non-smooth surface and hemming structure of claim 4 wherein the distributed biomimetic non-smooth texture (16) on any one pitch circle is staggered with the distributed biomimetic non-smooth texture (16) on its adjacent pitch circle.
6. Helical blade based on biomimetic non-smooth surface and hemming structure according to claim 1, characterized in that the hemming structure (17) has a thickness ranging from 1mm to 10mm; the width of the flanging structure (17) ranges from 5mm to 20mm.
7. Screw conveyor, characterized by comprising a screw blade (10) based on a biomimetic non-smooth surface and a hemming structure according to any of claims 1-6 and a screw shaft (10), on which screw shaft (10) a screw blade (10) with a continuous hemming structure (17) and a screw blade (10) with a discontinuous hemming structure (17) are mounted.
8. Screw conveyor according to claim 7, characterized in that the screw shaft (10) near the feed opening is provided with screw blades (10) with continuous flanging structures (17), and the screw shaft (10) near the discharge opening is provided with screw blades (10) with discontinuous flanging structures (17).
9. Screw conveyor according to claim 7, characterized in that the screw blades (10) with the pitch of the non-continuous flanging structure (17) are arranged as non-continuous flanging screw blade groups, a plurality of non-continuous flanging screw blade groups are all or partially arranged on the screw shaft (10), the shape or the cross section of the flanging structure (17) of adjacent non-continuous flanging screw blade groups is gradually changed along the axial direction, and N is a natural number larger than 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210409066.0A CN114684549B (en) | 2022-04-19 | 2022-04-19 | Spiral blade and spiral conveyer based on bionic non-smooth surface and flanging structure |
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| CN202210409066.0A CN114684549B (en) | 2022-04-19 | 2022-04-19 | Spiral blade and spiral conveyer based on bionic non-smooth surface and flanging structure |
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| CN114684549B true CN114684549B (en) | 2024-05-14 |
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| DE2908410A1 (en) * | 1979-03-03 | 1980-09-04 | Hermann Weichs | Non-clogging grit spreader worm - has transverse tube with spaced bottom outlets contg. worm with helix having backward-curved scoops over outlets |
| EP0076476A2 (en) * | 1981-10-02 | 1983-04-13 | Werner Dr. Stahl | Decanter centrifuge |
| CN200942979Y (en) * | 2006-09-08 | 2007-09-05 | 国家粮食储备局郑州科学研究设计院 | Emptying machine winch |
| CN101659349A (en) * | 2008-08-28 | 2010-03-03 | 钱尧翎 | Shaftless screw conveyor |
| CN203863830U (en) * | 2013-12-18 | 2014-10-08 | 安徽星亚冶金科技有限公司 | Spiral blade |
| CN104085654A (en) * | 2014-07-16 | 2014-10-08 | 黑龙江辉桐农业机械制造有限公司 | Novel auger blade |
| CN204802552U (en) * | 2015-06-02 | 2015-11-25 | 天津华牧牧业科技有限公司 | Fodder spiral delivery mechanism |
| CN106800170A (en) * | 2017-03-14 | 2017-06-06 | 太原理工大学 | A kind of bionical coal dust screw conveying structure |
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