CN112691908A - High-precision impeller - Google Patents
High-precision impeller Download PDFInfo
- Publication number
- CN112691908A CN112691908A CN201910947207.2A CN201910947207A CN112691908A CN 112691908 A CN112691908 A CN 112691908A CN 201910947207 A CN201910947207 A CN 201910947207A CN 112691908 A CN112691908 A CN 112691908A
- Authority
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- Prior art keywords
- impeller
- impeller disc
- disc
- pull rod
- blades
- 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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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a high-precision impeller, and particularly relates to the field of sorting equipment. According to the invention, the middle frame plate is changed into the circular impeller disc, so that the strength of the blades can be enhanced, the blades are not easy to deform, the axial direction of the impeller blades can be further lengthened, the area of the grading impeller blades is increased, the channels are increased, and the yield is increased; in addition, the strength of the grading wheel is increased, and the grading wheel is a double-fulcrum grading wheel, so that the rotating speed of the grading wheel can be greatly improved, and the rotating speed stability is good.
Description
Technical Field
The invention relates to the technical field of sorting equipment, in particular to a high-precision impeller.
Background
In powder processing, materials are often crushed and ground, and then the ground fine materials are sorted to reach the standard of the product, and screen separation and classification and mechanical winnowing classification are the most common.
The existing impeller generally adopts narrower blades which are arranged at a certain angle with the diameter of a wheel circle, because the blades at a certain angle can narrow a grating under the guidance of the weight reduction principle, but the grading precision is greatly influenced, the structure usually needs to improve the rotating speed of the impeller because the impeller is not easy to be enlarged, and therefore, the larger restriction is brought, taking calcium carbonate as an example; the general precision can be 800-.
In order to solve the above problems, a high-precision grading impeller is disclosed in patent application publication No. CN201361620Y, which refers to fig. 6 and 7 of the specification, and in the application, a wide blade, a narrow gap and a right-angle orthogonal design are adopted, the whole impeller can be manufactured and processed within the allowable range of effective strength and dynamic balance, the installation is convenient, the operation is stable, and the trailing end is extremely short, so as to achieve good grading precision and ideal throughput capacity, taking calcium carbonate as an example: can be made into 1250-.
However, the technical scheme still has more defects in actual application;
firstly, the middle section of the blade is clamped and reinforced by the impeller through the middle frame plate, once the axial direction of the impeller blade is lengthened by the limitation of the middle frame plate, the firmer thick middle frame plate is needed for supporting, in the practical application, the dynamic balance of the thick middle frame plate is difficult to adjust when the thick middle frame plate rotates at a high speed, and a motor bearing is easy to damage due to overlarge centrifugal force after the thick middle frame plate is used for a period of time;
secondly, because this impeller adopts the bell mouth in the bottom, in the practical application, the bell mouth is owing to have certain taper angle, and the dust quality that its taper angle edge difference height was gathered is different, because the taper angle edge leads to gathering the axial distance of dust different, and when high-speed rotation, the dust that has certain quality can make the centrifugal force that the blade received distribute unevenly, can lead to the classification wheel blade to warp.
Therefore, it is highly desirable to provide a high-precision impeller which is highly efficient in classification and less prone to deformation.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a high-precision impeller, which can enhance the strength of the blades and is not easy to deform by changing the middle frame plate into a circular impeller disk, so that the impeller blades can be axially lengthened, the area of the graded impeller blades is increased, the channels are increased, and the yield is increased; in addition, the strength of the grading wheel is increased, and the grading wheel is a double-fulcrum grading wheel, so that the rotating speed of the grading wheel can be greatly improved, and the rotating speed stability is good; in addition, the bottom impeller disc in a flange form and the shaft sleeve with two ends fixedly connected between the middle impeller disc and the fixed impeller disc are arranged, so that the blockage of a conical opening is omitted, the discharging can be better and smooth, the yield is further increased, in addition, the total strength of the grading wheel can be increased, the deformation of the blades can be avoided by pulling the impeller discs through the plurality of uniformly distributed pull rods, and the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a high-precision impeller comprises a shaft sleeve, wherein an upper impeller disc and a middle impeller disc are fixedly welded at the upper end and the lower end of the outer side of the shaft sleeve respectively, holes are formed in the surfaces of the upper impeller disc and the middle impeller disc, pull rods and blades are inserted and connected with the upper impeller disc and the middle impeller disc, lower impeller discs are sleeved at the bottom ends of the pull rods and the blades, fixing nuts are sleeved at the two ends of the pull rods, each pull rod is composed of an iron rod and threaded rods at the two ends, the diameter of the threaded rods at the two ends is slightly smaller than that of the iron rod, notches are formed at the two ends of the blades;
the middle impeller disc comprises a middle wheel disc, a shaft sleeve fixing hole matched with the shaft sleeve in size is formed in the middle of the middle impeller disc, blade limiting holes matched with the blades are formed in the outermost side of the surface of the middle wheel disc, and a round hole matched with a pull rod middle iron rod in size is formed in the middle of the middle wheel disc;
the lower impeller wheel disc comprises a lower wheel disc, the lower wheel disc is in a circular ring shape, pull rod threaded holes matched with threaded rods at two ends of a pull rod are formed in the inner side of a circular ring of the lower wheel disc, and blade fixing holes matched with blades are formed in the outer side of the circular ring of the lower wheel disc.
In a preferred embodiment, the length of the pull rod and the length of the blade are the same, and the upper impeller disc and the lower impeller disc are fixed through fixing nuts at two ends of the pull rod.
In a preferred embodiment, the upper impeller disc is similar to the middle impeller disc in structure, and the centers of the upper impeller disc and the middle impeller disc are respectively sleeved on the upper end and the lower end of the shaft sleeve and welded.
In a preferred embodiment, the centers of gravity of the shaft sleeve, the upper impeller disc, the middle impeller disc and the lower impeller disc are located on a vertical line of the center of the shaft sleeve, and the through holes on the surfaces of the upper impeller disc, the middle impeller disc and the lower impeller disc are located on the same vertical line.
In a preferred embodiment, the number of the pull rod through holes and the number of the blade limiting holes are equal to the number of the pull rod threaded holes and the number of the blade fixing holes, and the pull rod through holes and the blade limiting holes are respectively positioned on the same vertical line with the pull rod threaded holes and the blade fixing holes.
In a preferred embodiment, the bolts at the two ends of the blade are elastic iron sheets, and the blade is fixed in the through holes of the upper impeller disc and the lower impeller disc through the elastic bolts at the two ends.
In a preferred embodiment, the width of the blades is 50mm to 150mm, and the gap between the blades is 0.5mm to 15 mm.
The invention has the technical effects and advantages that:
1. according to the invention, the middle frame plate is changed into the circular impeller disc, so that the strength of the blades can be enhanced, the blades are not easy to deform, the axial direction of the impeller blades can be further lengthened, the area of the grading impeller blades is increased, the channels are increased, and the yield is increased; in addition, the strength of the grading wheel is increased, and the grading wheel is a double-fulcrum grading wheel, so that the rotating speed of the grading wheel can be greatly improved, and the rotating speed stability is good;
2. the invention saves the blockage of a conical opening by arranging the bottom impeller disc in a flange form and the shaft sleeve with two ends fixedly connected between the middle impeller disc and the fixed impeller disc, can ensure that the discharging is better and smooth, further increases the yield, and can increase the total strength of the grading wheel and avoid the deformation of the blades by pulling the impeller discs through a plurality of uniformly distributed pull rods.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a bottom view of the overall structure of the present invention.
Fig. 3 is a schematic view of the structure of the middle impeller of the present invention.
Fig. 4 is a schematic view of the lower impeller structure of the present invention.
Fig. 5 is a schematic view of the blade structure of the present invention.
FIG. 6 is a schematic diagram of a comparison file structure according to the present invention
FIG. 7 is a schematic top view of a comparison document according to the present invention
The reference signs are: 1. a shaft sleeve; 2. fixing a nut; 3. an upper impeller plate; 4. a pull rod; 5. a middle impeller plate; 6. a blade; 7. a lower blade wheel disc; 501. a middle wheel disc; 502. a pull rod through hole; 503. a blade limiting hole; 504. a shaft sleeve fixing hole; 701. a lower wheel disc; 702. a pull rod threaded hole; 703. and a blade fixing hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The high-precision impeller shown in the attached figures 1-5 comprises a shaft sleeve 1, wherein an upper impeller disc 3 and a middle impeller disc 5 are fixedly welded at the upper end and the lower end of the outer side of the shaft sleeve 1 respectively, holes are formed in the surfaces of the upper impeller disc 3 and the middle impeller disc 5, a pull rod 4 and a blade 6 are inserted and connected into the holes, a lower impeller disc 7 is sleeved at the bottom ends of the pull rod 4 and the blade 6, fixing nuts 2 are sleeved at the two ends of the pull rod 4, the pull rod 4 is composed of an iron rod and threaded rods at the two ends, the diameter of the threaded rods at the two ends is slightly smaller than that of the iron rod, notches are formed at the two ends of;
as shown in fig. 3, the intermediate impeller plate 5 includes an intermediate wheel plate 501, a shaft sleeve fixing hole 504 whose size is matched with that of the shaft sleeve 1 is formed in the middle of the intermediate impeller plate 5, a blade limiting hole 503 matched with the blade 6 is formed in the outermost side of the surface of the intermediate wheel plate 501, and a round hole whose size is matched with that of the intermediate iron rod of the pull rod 4 is formed in the middle of the intermediate wheel plate 501;
as shown in fig. 4, the lower impeller disc 7 includes a lower impeller disc 701, the lower impeller disc 701 is circular, a pull rod threaded hole 702 matched with threaded rods at two ends of the pull rod 4 is formed in the inner side of a circular ring of the lower impeller disc 701, and a blade fixing hole 703 matched with the blade 6 is formed in the outer side of the circular ring of the lower impeller disc 701.
The implementation mode is specifically as follows: the middle frame plate is changed into the circular impeller disc, so that the strength of the blades can be enhanced, the blades are not easy to deform, the axial direction of the impeller blades can be further lengthened, the area of the grading impeller blades is increased, the channels are increased, and the yield is increased; in addition, the strength of the grading wheel is increased, and the grading wheel is a double-fulcrum grading wheel, so that the rotating speed of the grading wheel can be greatly improved, and the rotating speed stability is good; in addition, the bottom impeller disc in a flange form and the shaft sleeve with two ends fixedly connected between the middle impeller disc and the fixed impeller disc are arranged, so that the blockage of a conical opening is omitted, the discharging can be better and smooth, the yield is further increased, in addition, the impeller discs are pulled by a plurality of uniformly distributed pull rods, the total strength of the grading wheel can be increased, and the deformation of the blades can be avoided.
Wherein, the length of pull rod 4, blade 6 is the same, and upper impeller dish 3, lower impeller dish 7 are fixed through the fixation nut 2 at pull rod 4 both ends, make blade 6 difficult to deform through pull rod 4 reinforced structure intensity.
The structure of the upper impeller disc 3 is similar to that of the middle impeller disc 5, the centers of the upper impeller disc 3 and the middle impeller disc 5 are respectively sleeved at the upper end and the lower end of the shaft sleeve 1 and welded, and a cavity reserved at the bottom generates negative pressure to suck dust.
The center of gravity of the shaft sleeve 1, the upper impeller disc 3, the middle impeller disc 5 and the lower impeller disc 7 is located on a vertical line of the center of the shaft sleeve 1, through holes in the surfaces of the upper impeller disc 3, the middle impeller disc 5 and the lower impeller disc 7 are located on the same vertical line, bolts at two ends of each blade 6 are elastic iron sheets, the blades 6 are fixed in the through holes of the upper impeller disc 3 and the lower impeller disc 7 through the elastic bolts at the two ends, and the fixing device keeps the concentricity of the device.
Wherein, the width of the blades 6 is 50mm-150mm, the gap between the blades 6 is 0.5mm-15mm, and the blade can basically cover the granularity range which needs to be reached by the superfine material.
The working principle of the invention is as follows:
the method comprises the steps of taking out a shaft sleeve 1, an upper impeller disc 3 and a middle impeller disc 5 which are prefabricated and welded, inserting a plurality of pull rods 4 and blades 6 from the bottom end, finally covering the upper impeller disc 7 and the lower impeller disc 7 to screw fixing nuts 2 at two ends of each pull rod 4 tightly, inserting elastic bolts into gaps at two ends of each blade 6, debugging the dynamic balance of the whole impeller by using the fixing nuts 2 with different masses, fixing the impeller on a rotating shaft of sorting equipment through the shaft sleeve 1, sucking ground materials to the impeller by negative pressure during operation, sucking powder which meets set sorting fineness into the impeller through gaps among the blades 6, collecting the powder, beating the powder which is larger than the set sorting fineness back by the blades 6, and grinding the powder in a grinding device again.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. A high accuracy impeller, includes axle sleeve (1), its characterized in that: the upper end and the lower end of the outer side of the shaft sleeve (1) are respectively fixedly welded with an upper impeller disc (3) and a middle impeller disc (5), the surfaces of the upper impeller disc (3) and the middle impeller disc (5) are provided with holes, and are inserted with a pull rod (4) and blades (6), the bottom ends of the pull rod (4) and the blades (6) are sleeved with a lower impeller disc (7), the two ends of the pull rod (4) are sleeved with fixing nuts (2), the pull rod (4) is composed of an iron rod and threaded rods at the two ends, the diameter of the threaded rods at the two ends is slightly smaller than that of the iron rod, the two ends of the blades (6) are provided with notches, and the notches of the blades (6) are;
the middle impeller disc (5) comprises a middle impeller disc (501), a shaft sleeve fixing hole (504) with the size matched with that of the shaft sleeve (1) is formed in the middle of the middle impeller disc (5), blade limiting holes (503) matched with the blades (6) are formed in the outermost side of the surface of the middle impeller disc (501), and a round hole with the size matched with that of a middle iron rod of the pull rod (4) is formed in the middle of the middle impeller disc (501);
lower impeller rim plate (7) are including lower rim plate (701), lower rim plate (701) are the ring form, pull rod screw hole (702) with pull rod (4) both ends threaded rod looks adaptation are seted up to the ring inboard of lower rim plate (701), blade fixed orifices (703) with blade (6) looks adaptation are seted up in the ring outside of lower rim plate (701).
2. A high precision impeller according to claim 1, characterized in that: the length of the pull rod (4) is the same as that of the blades (6), and the upper impeller disc (3) and the lower impeller disc (7) are fixed through the fixing nuts (2) at the two ends of the pull rod (4).
3. A high precision impeller according to claim 1, characterized in that: the structure of the upper impeller disc (3) is similar to that of the middle impeller disc (5), and the centers of the upper impeller disc (3) and the middle impeller disc (5) are respectively sleeved at the upper end and the lower end of the shaft sleeve (1) and welded.
4. A high precision impeller according to claim 1, characterized in that: the center of gravity of the shaft sleeve (1), the upper impeller disc (3), the middle impeller disc (5) and the lower impeller disc (7) is located on a vertical line of the center of the shaft sleeve (1), and the through holes in the surfaces of the upper impeller disc (3), the middle impeller disc (5) and the lower impeller disc (7) are located on the same vertical line.
5. A high precision impeller according to claim 1, characterized in that: the number of the pull rod through holes (502) and the number of the blade limiting holes (503) are equal to that of the pull rod threaded holes (702) and the number of the blade fixing holes (703), and the pull rod through holes (502) and the blade limiting holes (503) are respectively positioned on the same vertical line with the pull rod threaded holes (702) and the blade fixing holes (703).
6. A high precision impeller according to claim 1, characterized in that: the bolts at the two ends of the blade (6) are elastic iron sheets, and the blade (6) is fixed in the through holes of the upper impeller disc (3) and the lower impeller disc (7) through the elastic bolts at the two ends.
7. A high precision impeller according to claim 1, characterized in that: the width of the blades (6) is 50mm-150mm, and the gap between the blades (6) is 0.5mm-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947207.2A CN112691908A (en) | 2019-10-07 | 2019-10-07 | High-precision impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947207.2A CN112691908A (en) | 2019-10-07 | 2019-10-07 | High-precision impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112691908A true CN112691908A (en) | 2021-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910947207.2A Pending CN112691908A (en) | 2019-10-07 | 2019-10-07 | High-precision impeller |
Country Status (1)
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| CN (1) | CN112691908A (en) |
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| CN207701459U (en) * | 2017-07-22 | 2018-08-07 | 常州恒益电机有限公司 | Tenon riveting formula Wind Volume impeller |
| CN208138198U (en) * | 2018-05-07 | 2018-11-23 | 台州银牛机电有限公司 | A kind of blade wheel structure |
| CN208865964U (en) * | 2018-09-22 | 2019-05-17 | 广东科泰信息科技有限公司 | A kind of nanometer of grading wheel |
| CN211463901U (en) * | 2019-10-07 | 2020-09-11 | 无锡市百韧机械科技有限公司 | High-precision impeller |
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2019
- 2019-10-07 CN CN201910947207.2A patent/CN112691908A/en active Pending
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| CN2770816Y (en) * | 2005-01-14 | 2006-04-12 | 江苏科行环境工程技术有限公司 | Five-grade separation combined powder separating machine cage rotor |
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