CN209781293U - Axial flow fan blade used on fan in power system and fan - Google Patents
Axial flow fan blade used on fan in power system and fan Download PDFInfo
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- CN209781293U CN209781293U CN201920280636.4U CN201920280636U CN209781293U CN 209781293 U CN209781293 U CN 209781293U CN 201920280636 U CN201920280636 U CN 201920280636U CN 209781293 U CN209781293 U CN 209781293U
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- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 6
- 238000005498 polishing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
the utility model discloses an axial flow fan blade and a fan used on a fan in an electric power system, which comprises a hub and a plurality of blades uniformly distributed on the hub; the hub is of a circular structure; the hub and the blades are arranged separately and connected through a positioning structure; the positioning structure comprises a plug connector for plugging the hub and the blade and a locking member for pressing the hub and the blade after plugging; the blade passes through the location structure and can dismantle between the wheel hub and be connected, and the components of a whole that can function independently setting not only is in the manufacturing process, is favorable to polishing the blade, and it is very convenient to operate, and under the normal conditions moreover, the blade is more rapid than wheel hub wearing and tearing, does not need often to change wheel hub, only needs to change the blade, and use cost is lower.
Description
Technical Field
the utility model relates to a fan technical field that uses among the electric power system, specific axial fan blade and fan on fan that uses among electric power system that says so.
background
In an electric power system, a lot of equipment is used, wherein a fan is generally used for ventilating a control room, and the functions of reducing the temperature in the control room and ensuring the air quality are achieved; axial flow fan blades are generally used on the fan; the axial flow fan blade generally comprises a hub and a plurality of blades uniformly distributed on the hub; in actual use, the hub and the blades are integrally formed through a die; although integrated into one piece intensity is higher, but because blade quantity is usually more, will have crisscross between the blade, though can leave certain clearance, still be difficult a bit in the course of working, especially when polishing the blade, the operation is very inconvenient, when local damage, need change wholly, use cost is higher, and because the thickness between wheel hub and the blade is different, the shrink speed difference appears wheel hub and blade junction easily and produces the crackle moreover, and the yield is lower.
Disclosure of Invention
to the above-mentioned weak point that exists among the prior art, the utility model aims at providing an axial fan blade and fan on the fan of using among the electric power system to solve axial fan blade among the prior art shaping quality poor, the polishing inconvenient, the technical problem that replacement cost is high.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: an axial flow fan blade used on a fan in an electric power system comprises a hub and a plurality of blades uniformly distributed on the hub; the hub is of a circular structure; the hub and the blades are arranged separately and connected through a positioning structure; the positioning structure comprises a plug connector for plugging the hub and the blade, and a locking member for pressing the hub and the blade after plugging.
preferably: the plug connector comprises a first slot arranged on the hub and a plug block connected to the blade and used for being plugged with the first slot.
Preferably: the first slot and the inserting block are of a T-shaped structure after being projected on a plane from top to bottom.
preferably: the first slot and the insertion block are the same in length.
Preferably: the locking piece comprises annular pressing covers which are symmetrically connected to two ends of the hub and used for pressing the inserting blocks into the first slots.
Preferably: the plug connector comprises a convex block which is arranged on the excircle of the hub, provided with a second slot and used for plugging the blade.
preferably: the locking piece is a locking bolt for connecting the lug and the blade.
A fan used in an electric power system comprises a bracket, a motor connected to the bracket, and a shell connected to the bracket and connected with the motor; the method is characterized in that: the axial flow fan blade is adopted; the axial flow fan blade is connected with the motor and is matched in the casing.
preferably: the casing comprises a spiral air duct and a square air outlet connected to the spiral air duct.
preferably: the spiral air duct is also provided with an air inlet bell mouth convenient for air to be guided in.
A fan used in the electric power system and axial fan blade used on the fan used in the electric power system belong to a general inventive concept, the technology is interrelated, all have improved axial fan blade structure, therefore have the unicity;
The utility model has the advantages that: the utility model provides an axial compressor fan blade and fan on fan that uses among electric power system, the blade passes through location structure and can dismantle between the wheel hub to be connected, and the components of a whole that can function independently setting not only in manufacturing process, and the shaping high quality is favorable to polishing the blade, and it is very convenient to operate, and under the normal conditions moreover, the blade is more quick than wheel hub wearing and tearing, need not often change wheel hub, only needs to change the blade, and use cost is lower.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a first embodiment of the present invention;
fig. 2 is an exploded schematic view of a three-dimensional structure according to a first embodiment of the present invention;
fig. 3 is a schematic three-dimensional structure diagram of a second embodiment of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the second embodiment of the present invention after the blades are removed;
Fig. 5 is a schematic structural view of the axial flow fan blade of the present invention installed in a fan;
Fig. 6 is a right side view of the present invention as shown in fig. 5;
In the figure: 1. the novel blade assembly comprises a hub, 2. blades, 3. an annular gland, 101, a first slot, 102, a second slot, 103, a lug, 104, a locking bolt and 201, and an insert block.
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 some embodiments of the present invention, not all embodiments;
the utility model relates to an axial fan blade and fan on fan of using among electric power system has solved the technical problem that axial fan blade shaping quality among the prior art is poor, burnishing and polishing is inconvenient, replacement cost is high, and the general thinking is as follows:
the first embodiment is as follows:
See fig. 1, 2: an axial flow fan blade used on a fan in an electric power system, specifically, a hub 1 and a blade 2 are separately arranged and connected through a positioning structure; the positioning structure comprises a plug connector for plugging the hub 1 and the blade 2 and a locking member for pressing the plugged hub 1 and blade 2; compared with the prior art, the axial flow fan blade comprises a hub 1 and a plurality of blades 2 uniformly distributed on the hub 1; the hub 1 and the blades 2 are integrally cast and molded; the split arrangement in the application has the advantages that the forming quality is high in the processing and manufacturing process, the blade 2 is favorably polished, the operation is very convenient, in general, the blade 2 is abraded faster than the hub 1, the hub 1 does not need to be frequently replaced, the blade 2 and welding points on the insertion block 201 are generally only polished and cut, and a new blade 2 is replaced and welded, so that compared with the integral replacement of an axial flow fan blade, the split arrangement is lower in use cost and more convenient to replace;
specifically, in fig. 1 and 2: the number of the blades 2 is preferably six, so that the air exhaust volume of the fan is ensured;
specifically, in fig. 1 and 2: the plug connector comprises a first slot 101 arranged on the hub 1 and a plug block 201 connected to the blade 2 and used for being plugged with the first slot 101; the locking piece comprises annular pressing covers 3 which are symmetrically connected to two ends of the hub 1 through bolts and used for pressing the inserting blocks 201 into the first inserting grooves 101;
The first slot 101 and the insertion block 201 are of a T-shaped structure after being projected from the top to the bottom, the first slot 101 forms a through groove structure on the hub 1, the first slot 101 and the insertion block 201 are identical in length, and are in clearance fit according to normal tolerance, so that the reliability of fit is guaranteed;
the hub 1 is turned into a circular ring shape, a key groove is machined in an inner hole through linear cutting, and a first slot 101 with a T-shaped structure is milled in an outer circle through a numerical control machining center;
The insert block 201 is milled by a numerical control machining center, and during machining, the insert block 201 is marked by the way, so that the blade 2 is convenient to mount;
The blade 2 is milled out of a binding surface with the hub 1 through a numerical control machining center, and after other parts are polished, the weight is weighed, so that the self weight of the blade 2 is ensured not to be too different, and a dynamic balance test after the axial flow fan blades are combined into a whole is facilitated;
aligning and spot-welding the lines scribed on the blade 2 and the plug block 201, after the positions are determined, fully welding the blade 2 and the plug block 201, then splicing the plug block 201 and the blade 2 with the first slot 101 on the hub 1, and after splicing, attaching the blade 2 to the excircle of the hub 1;
The annular gland 3 is connected with the hub 1 through bolts to block the insert blocks 201, so that the blades 2 and the insert blocks 201 are reliably and uniformly distributed on the hub 1;
Through being provided with plug connector and retaining member for hub 1 and blade 2's connection is more reliable, and the installation, dismantlement are very convenient.
example two:
See fig. 3, 4: an axial flow fan blade used on a fan in an electric power system comprises a hub 1 and a plurality of blades 2 uniformly distributed on the hub 1; the hub 1 is of a circular structure in appearance; the hub 1 and the blades 2 are arranged separately and connected through a positioning structure; the positioning structure comprises a plug connector for plugging the hub 1 and the blade 2 and a locking member for pressing the plugged hub 1 and blade 2;
Specifically, the plug connector comprises a lug 103 which is arranged on the outer circle of the hub 1 and provided with a second slot 102 and is used for plugging the blade 2; the bump 103 and the hub 1 are integrally cast and molded, and then the second slot 102 is finely milled through a numerical control machining center;
The locking piece is a locking bolt 104 used for connecting the lug 103 and the blade 2, and at least two locking bolts 104 are connected between each blade 2 and the lug 103; the convex block 103 is provided with a through hole, and the blade 2 is provided with a threaded blind hole, so that the locking bolt 104 can be conveniently connected;
After the blades 2 are polished, the weight of the blades 2 is weighed, so that the self weight of the blades 2 is ensured not to be too different, and a dynamic balance test after the axial flow fan blades are combined into a whole is facilitated;
The blade 2 is inserted into the second slot 102 on the projection 103 and then connected by the locking bolt 104, so that the installation and the disassembly are convenient, and the replacement cost is relatively low.
Specifically, in fig. 5 and 6: a fan used in an electric power system comprises a bracket 30, a motor 31 connected to the bracket 30 through a bolt, and a casing 32 connected to the bracket 30 through a bolt and penetrating into the bolt with the motor 31; the axial flow fan blade is connected with the motor 31 through a key, positioned on the motor 31 through a compression bolt 34 and matched in the shell 32; the motor 31 drives the axial flow fan blade to rotate, so that the wind is boosted, accelerated and discharged in the casing 32; when the axial-flow fan blade needs to be replaced after long-time use, the hold-down bolt 34 is loosened, the axial-flow fan blade is taken out, and the locking piece is loosened, so that the blade 2 is pulled out, and the worn part is replaced;
Specifically, the bracket 30 includes four channel steels, and reinforcing channel steels welded between the four channel steels, so that the four channel steels constitute a frame, and a platform for connecting the motor 31 is welded at the tops of the four channel steels; the casing 32 is connected with the side wall of the channel steel through a bolt;
Specifically, the casing 32 includes a spiral duct 32-1 and a square air outlet 32-2 connected to the spiral duct 32-1; the spiral air duct 32-1 is connected with the square air outlet 32-2 through bolts penetrating through square flanges; the spiral air duct 32-1 is beneficial to boosting, accelerating and discharging wind under the action of the axial flow fan blades, so that the ventilation effect is achieved;
specifically, the spiral air duct 32-1 is further provided with an air inlet bell mouth 33 facilitating air introduction, and the air inlet bell mouth 33 is connected with the spiral air duct 32-1 through a bolt penetrating through a flange, so that after the axial flow fan blade rotates, air is introduced into the spiral air duct 32-1 to boost pressure and accelerate.
The utility model discloses a theory of operation: the blades 2 are detachably connected with the hub 1 through the positioning structures and are arranged in a split mode, replacement cost is reduced, installation and disassembly are convenient, and forming quality is high.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the positional relationships illustrated in the drawings, and are only for convenience of describing the present invention or simplifying the description, but do not indicate specific orientations that must be provided; the operation processes described in the embodiments are not absolute use steps, and may be adjusted accordingly when actually used.
the above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. an axial flow fan blade used on a fan in an electric power system comprises a hub (1) and a plurality of blades (2) uniformly distributed on the hub (1); the hub (1) is of a circular structure in appearance; the method is characterized in that: the hub (1) and the blades (2) are arranged in a split manner and are connected through a positioning structure; the positioning structure comprises a plug connector for plugging the hub (1) and the blade (2) and a locking piece for pressing the plugged hub (1) and blade (2).
2. the axial flow fan blade used on the fan in the electric power system according to claim 1, characterized in that: the plug connector comprises a first slot (101) arranged on the hub (1) and a plug block (201) connected to the blade (2) and used for being plugged with the first slot (101).
3. The axial flow fan blade used on the fan in the electric power system according to claim 2, characterized in that: the first slot (101) and the insertion block (201) are of a T-shaped structure after being projected on a plane from top to bottom.
4. The axial flow fan blade used on the fan in the electric power system according to claim 2, characterized in that: the first slot (101) and the insertion block (201) are the same in length.
5. the axial flow fan blade used on the fan in the electric power system according to claim 4, characterized in that: the locking piece comprises annular pressing covers (3) which are symmetrically connected to two ends of the hub (1) and used for pressing the inserting blocks (201) into the first inserting grooves (101).
6. The axial flow fan blade used on the fan in the electric power system according to claim 1, characterized in that: the plug connector comprises a lug (103) which is arranged on the outer circle of the hub (1) and provided with a second slot (102) and is used for plugging the blade (2).
7. the axial flow fan blade on the fan used in the electric power system according to claim 6, characterized in that: the locking piece is a locking bolt (104) used for connecting the lug (103) and the blade (2).
8. A fan used in an electric power system comprises a bracket (30), a motor (31) connected to the bracket (30), and a casing (32) connected to the bracket (30) and connected with the motor (31); the method is characterized in that: the axial-flow fan blade of any one of claims 1 to 7 is adopted; the axial flow fan blade is connected to the motor (31) and matched in the casing (32).
9. A wind turbine for use in an electrical power system according to claim 8, wherein: the machine shell (32) comprises a spiral air duct (32-1) and a square air outlet (32-2) connected to the spiral air duct (32-1).
10. A wind turbine for use in an electrical power system according to claim 9, wherein: the spiral air duct (32-1) is also provided with an air inlet bell mouth (33) convenient for air to be introduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280636.4U CN209781293U (en) | 2019-03-06 | 2019-03-06 | Axial flow fan blade used on fan in power system and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280636.4U CN209781293U (en) | 2019-03-06 | 2019-03-06 | Axial flow fan blade used on fan in power system and fan |
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| Publication Number | Publication Date |
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| CN209781293U true CN209781293U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920280636.4U Active CN209781293U (en) | 2019-03-06 | 2019-03-06 | Axial flow fan blade used on fan in power system and fan |
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| CN (1) | CN209781293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139774A (en) * | 2020-09-28 | 2020-12-29 | 宁国市华成金研科技有限公司 | Engine precision casting blade and processing method thereof |
-
2019
- 2019-03-06 CN CN201920280636.4U patent/CN209781293U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139774A (en) * | 2020-09-28 | 2020-12-29 | 宁国市华成金研科技有限公司 | Engine precision casting blade and processing method thereof |
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