CN114473383A - Volute-free fan impeller machining process - Google Patents
Volute-free fan impeller machining process Download PDFInfo
- Publication number
- CN114473383A CN114473383A CN202210104583.7A CN202210104583A CN114473383A CN 114473383 A CN114473383 A CN 114473383A CN 202210104583 A CN202210104583 A CN 202210104583A CN 114473383 A CN114473383 A CN 114473383A
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- Prior art keywords
- cover plate
- upper cover
- blade
- positioning
- volute
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- 238000003754 machining Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 46
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A processing technology for a volute-free fan impeller comprises at least the following steps: s1, respectively processing an upper cover plate, a lower cover plate, blades, a shaft disc and a shaft sleeve according to the requirements of a drawing; s2, processing a positioning process hole on the upper cover plate; s3, processing a protruding positioning block at a corresponding position on the blade; s4, welding the blade and the upper cover plate, and inserting the positioning block into the positioning process hole during welding; s5, welding a lower cover plate on the bottom surface of the blade, and enabling the lower cover plate and the upper cover plate to be coaxial; and S6, mounting the shaft disc and the shaft sleeve on the upper cover plate through fasteners. The volute-free fan impeller machining process is characterized in that a positioning process orifice is formed in the upper cover plate, a protruding positioning block is arranged on the blade, and the positioning block is inserted into the positioning process orifice during welding, so that the welding position and angle of the blade can be guaranteed, and the fastness of the blade is improved.
Description
Technical Field
The invention belongs to the technical field of impeller machining, and particularly relates to a machining process of a volute-free fan impeller.
Background
The impeller is an important component of the fan, and the use performance and the service life of the fan are directly influenced by the quality of the impeller. Among the prior art, the position of blade is confirmed through the mode of setting-out location to the blade of impeller, then weld again, this kind of processing mode not only can make impeller blade position have the skew in the welded time, on the other hand probably directly influences the angle of blade, lead to the inconsistent scheduling problem of blade angle, and adopt the direct welded mode, the gas pocket can appear in the welded time, and apron about direct through the solder joint transmission on the blade when impeller work, the time is of a specified duration or when fan power is too big, probably because the welding is not firm, make the blade fly-out, there is certain potential safety hazard. Accordingly, there is a need to provide a voluteless fan wheel machining process.
Disclosure of Invention
The invention aims to provide a processing technology of a volute-free fan impeller, which solves the problems in the background technology.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a processing technology for a volute-free fan impeller comprises at least the following steps:
s1, respectively processing an upper cover plate, a lower cover plate, blades, a shaft disc and a shaft sleeve according to the requirements of a drawing;
s2, processing positioning process orifices on the upper cover plate, wherein the number of the positioning process orifices is equal to that of the blades, and the positioning process orifices are uniformly distributed along the same circumference;
s3, processing a protruding positioning block at a corresponding position on the blade, wherein the positioning block is positioned on the top surface of the blade, and the overall dimension of the positioning block is the same as that of the positioning process orifice;
s4, welding the blade and the upper cover plate, and inserting the positioning block into the positioning process hole during welding;
s5, welding a lower cover plate on the bottom surface of the blade, and enabling the lower cover plate and the upper cover plate to be coaxial;
and S6, mounting the shaft disc and the shaft sleeve on the upper cover plate through fasteners.
On the basis of the above scheme and as a preferable scheme of the above scheme, after step S1 is completed, the metal spin forming technique is adopted to respectively turn over the side edge of the upper cover plate upwards to form an upper flange and turn over the side edge of the lower cover plate downwards to form a lower flange.
On the basis of the above scheme and as a preferable scheme of the above scheme, the upper cover plate, the lower cover plate and the blades are made of aluminum alloy sections.
On the basis of the above scheme and as a preferable scheme of the above scheme, the positioning process hole penetrates through the upper cover plate, and the height of the positioning block is smaller than or equal to the thickness of the upper cover plate.
On the basis of the above scheme and as a preferable scheme of the above scheme, each blade is provided with a plurality of positioning blocks, and a plurality of positioning process orifices are correspondingly arranged at the position of each blade on the upper cover plate.
On the basis of the above-mentioned solution and as a preferable solution of the above-mentioned solution, the positioning process hole has a tapered shape with a large top and a small bottom, and the shape of the positioning block corresponds to the shape of the positioning process hole.
On the basis of the above scheme and as a preferable scheme of the above scheme, the positioning process orifice is a kidney-shaped hole, and the width of the kidney-shaped hole is equal to the thickness of the blade.
In addition to the above, and as a preferable mode of the above, the positioning block is integrally formed with the blade.
The invention has the following beneficial effects: the processing technology of the volute-free fan impeller is characterized in that a positioning process orifice is formed in the upper cover plate, a protruding positioning block is arranged on the blade, and the positioning block is inserted into the positioning process orifice during welding, so that the welding position and angle of the blade can be guaranteed, the firmness of the blade is increased, and the force on the blade can be well transmitted to the upper cover plate and the lower cover plate through the positioning block during operation of the impeller; the upper flanging and the lower flanging can respectively improve the strength of the upper cover plate and the lower cover plate, and the use is not influenced; the positioning process hole penetrates through the upper cover plate, and whether the positioning block is inserted into the positioning process hole or not can be observed from the upper surface of the upper cover plate; the height of the positioning block is smaller than or equal to the thickness of the upper cover plate, so that the positioning block can be prevented from protruding out of the upper cover plate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the unfurled upper cover plate and the lower cover plate of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is a schematic structural view of the upper cover plate and the lower cover plate after flanging.
The reference numbers are as follows:
1. an upper cover plate; 11. positioning a process orifice; 12. upward flanging; 2. a lower cover plate; 21. downward flanging; 3. a blade; 4. a reel; 5. and a shaft sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, a processing technology for a volute-free fan impeller comprises at least the following steps:
s1, respectively processing an upper cover plate 1, a lower cover plate 2, blades 3, a shaft disc 4 and a shaft sleeve 5 according to the requirements of a drawing;
s2, processing positioning process orifices 11 on the upper cover plate 1, wherein the number of the positioning process orifices 11 is equal to that of the blades 3, and the positioning process orifices 11 are uniformly distributed along the same circumference;
s3, processing a protruding positioning block at a corresponding position on the blade 3, wherein the positioning block is positioned on the top surface of the blade, and the external dimension of the positioning block is the same as that of the positioning process orifice 11;
s4, welding the blade 3 and the upper cover plate 1, and inserting a positioning block into the positioning process orifice 11 during welding;
s5, welding the lower cover plate 2 on the bottom surface of the blade 3, and enabling the lower cover plate 2 to be coaxial with the upper cover plate 1;
and S6, mounting the shaft disc 4 and the shaft sleeve 5 on the upper cover plate 1 through fasteners.
The volute-free fan impeller machining process is characterized in that a positioning process hole is formed in the upper cover plate, a protruding positioning block is arranged on the blade, and the positioning block is inserted into the positioning process hole during welding, so that the welding position and angle of the blade can be guaranteed, the firmness of the blade is improved, and the force on the blade can be well transmitted to the upper cover plate and the lower cover plate through the positioning block during operation of the impeller.
After step S1 is completed, the metal spin forming technique is used to respectively turn over the side edge of the upper cover plate 1 upwards to form the upper flange 12 and turn over the side edge of the lower cover plate 2 downwards to form the lower flange 21, and the upper flange and the lower flange can respectively improve the strength of the upper cover plate and the lower cover plate without affecting the use.
The upper cover plate 1, the lower cover plate 2 and the blades 3 are made of aluminum alloy sections, and compared with plastic materials, the aluminum alloy sections are suitable for inflammable and explosive places.
The positioning process hole 11 penetrates through the upper cover plate 1, and the height of the positioning block is smaller than or equal to the thickness of the upper cover plate 1, so that whether the positioning block is inserted into the positioning process hole or not can be observed from the upper surface of the upper cover plate, and the positioning block can be prevented from protruding out of the upper cover plate.
Each blade 3 is provided with a plurality of positioning blocks, and a plurality of positioning process orifices 11 are correspondingly arranged at the position of each blade 3 on the upper cover plate 1, so that the positioning effect and the strength transmission effect are further improved.
The positioning process orifice 11 is in a conical shape with a large upper part and a small lower part, and the shape of the positioning block corresponds to that of the positioning process orifice 11. The conical positioning process hole can play a guiding role, and a positioning block can be conveniently inserted.
The positioning process hole 11 is a kidney-shaped hole, the width of the kidney-shaped hole is equal to the thickness of the blade 3, and the width of the positioning block is equal to the thickness of the blade.
The positioning block and the blade 3 are integrally formed, so that the positioning block can be prevented from being welded on the blade to cause inaccurate position of the positioning block.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A processing technology for a volute-free fan impeller is characterized by comprising at least the following steps:
s1, respectively processing an upper cover plate (1), a lower cover plate (2), blades (3), a shaft disc (4) and a shaft sleeve (5) according to the requirements of a drawing;
s2, processing positioning process orifices (11) on the upper cover plate (1), wherein the number of the positioning process orifices (11) is equal to that of the blades (3), and the positioning process orifices (11) are uniformly distributed along the same circumference;
s3, processing a protruding positioning block at a corresponding position on the blade (3), wherein the positioning block is positioned on the top surface of the blade (3), and the external dimension of the positioning block is the same as that of the positioning process orifice (11);
s4, welding the blade (3) and the upper cover plate (1), and inserting a positioning block into the positioning process hole opening (11) during welding;
s5, welding the lower cover plate (2) on the bottom surface of the blade (3), and enabling the lower cover plate (2) and the upper cover plate (1) to be coaxial;
and S6, mounting the shaft disc (4) and the shaft sleeve (5) on the upper cover plate (1) through fasteners.
2. The volute-free fan impeller machining process of claim 1, wherein: after step S1 is completed, the metal spin forming technique is used to respectively fold the side edge of the upper cover plate (1) upwards to form an upper flange (12) and fold the side edge of the lower cover plate (2) downwards to form a lower flange (21).
3. The volute-free fan impeller machining process of claim 1, wherein: the upper cover plate (1), the lower cover plate (2) and the blades (3) are made of aluminum alloy sections.
4. The volute-free fan impeller machining process of claim 1, wherein: the positioning process hole (11) penetrates through the upper cover plate (1), and the height of the positioning block is smaller than or equal to the thickness of the upper cover plate (1).
5. The volute-free fan impeller machining process of claim 1, wherein: each blade (3) is provided with a plurality of positioning blocks, and the position of each blade (3) on the upper cover plate (1) is correspondingly provided with a plurality of positioning process orifices (11).
6. The volute-free fan impeller machining process of claim 1, wherein: the positioning process orifice (11) is in a conical shape with a large upper part and a small lower part, and the shape of the positioning block corresponds to the shape of the positioning process orifice (11).
7. The volute-free fan impeller machining process of claim 1, wherein: the positioning process hole (11) is a kidney-shaped hole, and the width of the kidney-shaped hole is equal to the thickness of the blade (3).
8. The volute-free fan impeller machining process of claim 1, wherein: the positioning block and the blade (3) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104583.7A CN114473383A (en) | 2022-01-28 | 2022-01-28 | Volute-free fan impeller machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104583.7A CN114473383A (en) | 2022-01-28 | 2022-01-28 | Volute-free fan impeller machining process |
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| Publication Number | Publication Date |
|---|---|
| CN114473383A true CN114473383A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210104583.7A Pending CN114473383A (en) | 2022-01-28 | 2022-01-28 | Volute-free fan impeller machining process |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004107A (en) * | 1962-05-02 | 1965-09-08 | Samuel Osborn & Company Ltd | Improvements in or relating to centrifugal pump impellers |
| CN2385118Y (en) * | 1999-06-28 | 2000-06-28 | 湘潭市红日实业有限公司 | Vane for drink pump |
| US20050071998A1 (en) * | 2003-10-02 | 2005-04-07 | Rocky Drew M. | Method of molding centrifugal impeller |
| CN1888449A (en) * | 2006-07-21 | 2007-01-03 | 上海凯泉泵业（集团）有限公司 | Water pump vanes |
| CN202914387U (en) * | 2012-11-20 | 2013-05-01 | 浙江朗迪集团股份有限公司 | Centrifugal impeller |
| CN204628064U (en) * | 2015-04-23 | 2015-09-09 | 常州优越机械制造有限公司 | A kind of Combined centrifugal fan impeller |
| CN206903933U (en) * | 2017-04-13 | 2018-01-19 | 苏州三和仪器有限公司 | A kind of high-speed fan rotary blade |
| CN209228688U (en) * | 2018-11-27 | 2019-08-09 | 常州雷利电机科技有限公司 | Vane rotor component and centrifugal pump including it |
| CN110374917A (en) * | 2019-07-29 | 2019-10-25 | 马鞍山宸宇达风机工业有限公司 | A kind of flange impeller front disc |
| CN211288245U (en) * | 2019-10-31 | 2020-08-18 | 上海通联泵业(集团)有限公司 | Stainless steel middle section stator |
| CN212838570U (en) * | 2020-06-24 | 2021-03-30 | 宁波市易工自动化科技有限公司 | Dust catcher fan blade of quick installation |
| CN112814940A (en) * | 2021-01-05 | 2021-05-18 | 山东省章丘鼓风机股份有限公司 | Centrifugal fan welded impeller, machining method and machining device |
-
2022
- 2022-01-28 CN CN202210104583.7A patent/CN114473383A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004107A (en) * | 1962-05-02 | 1965-09-08 | Samuel Osborn & Company Ltd | Improvements in or relating to centrifugal pump impellers |
| CN2385118Y (en) * | 1999-06-28 | 2000-06-28 | 湘潭市红日实业有限公司 | Vane for drink pump |
| US20050071998A1 (en) * | 2003-10-02 | 2005-04-07 | Rocky Drew M. | Method of molding centrifugal impeller |
| CN1888449A (en) * | 2006-07-21 | 2007-01-03 | 上海凯泉泵业（集团）有限公司 | Water pump vanes |
| CN202914387U (en) * | 2012-11-20 | 2013-05-01 | 浙江朗迪集团股份有限公司 | Centrifugal impeller |
| CN204628064U (en) * | 2015-04-23 | 2015-09-09 | 常州优越机械制造有限公司 | A kind of Combined centrifugal fan impeller |
| CN206903933U (en) * | 2017-04-13 | 2018-01-19 | 苏州三和仪器有限公司 | A kind of high-speed fan rotary blade |
| CN209228688U (en) * | 2018-11-27 | 2019-08-09 | 常州雷利电机科技有限公司 | Vane rotor component and centrifugal pump including it |
| CN110374917A (en) * | 2019-07-29 | 2019-10-25 | 马鞍山宸宇达风机工业有限公司 | A kind of flange impeller front disc |
| CN211288245U (en) * | 2019-10-31 | 2020-08-18 | 上海通联泵业(集团)有限公司 | Stainless steel middle section stator |
| CN212838570U (en) * | 2020-06-24 | 2021-03-30 | 宁波市易工自动化科技有限公司 | Dust catcher fan blade of quick installation |
| CN112814940A (en) * | 2021-01-05 | 2021-05-18 | 山东省章丘鼓风机股份有限公司 | Centrifugal fan welded impeller, machining method and machining device |
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