CN207598570U - A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting - Google Patents
A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting Download PDFInfo
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- CN207598570U CN207598570U CN201721153970.0U CN201721153970U CN207598570U CN 207598570 U CN207598570 U CN 207598570U CN 201721153970 U CN201721153970 U CN 201721153970U CN 207598570 U CN207598570 U CN 207598570U
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- Prior art keywords
- steel bushing
- impeller
- wheel
- hub
- blade
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- 238000005266 casting Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007514 turning Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of blade wheel structures that high rotating speed requirement is realized using low-pressure casting, it is characterised in that：Steel bushing is embedded in impeller hub and casts together；The blade wheel structure mainly includes：Wheel cap (1), blade (2), wheel hub (3), steel bushing (4)；Steel bushing (4) is mainly formed by the following parts：Part (5) on impeller hub, radial slot (6), axial boss (7), impeller installing technological hole (8), installation keyway (9).
Description
Technical field
Casting more particularly to a kind of casting process of fluid blast apparatus impeller the present invention relates to aluminum alloy impeller,
More particularly to a kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting.
Background technology
Domestic and international most of compressor impellers are using aluminum alloy impeller, and material is light, and mechanical strength is good, specific strength and ratio
Rigidity is high, and conductive and thermal conductivity is high, excellent corrosion resistance.It is different according to the demand of equipment, it is necessary to which that impeller is needed very high
It works under speed conditions, to meet the needs of equipment performance.At this moment just need impeller that there is higher specific strength and specific stiffness.It closes
The main mode of production of formula impeller mainly have low pressure casting and wrought aluminium machine add after by lead welding wheel cap mode.Forging aluminium alloy passes through five
Axis is processed, and the precision of impeller is high, then is molded double shrouded wheel, higher price by lead welding wheel cap mode, it is impossible to realize that batch is raw
Production.Since blade and wheel cap are split type, bonding strength is low, under the action of the centrifugal force that impeller is generated in high speed rotation, wheel
Lid is likely to occur the phenomenon that being detached with blade.The compactness of the aluminium alloy molecule of low pressure casting is not as good as forging aluminium alloy, intensity
To be inferior to forging aluminium alloy.Its wheel cap and blade are by disposable casting and forming, bonding strength height.And it can realize batch
Property production, cost is relatively low.But the wheel speed now needed is too high, hub portion wall is too thin among impeller, conventional low voltage casting
Impeller intensity cannot meet the performance requirement of product, now need to change the structure of impeller, with reference to the characteristics of low-pressure casting, design
Go out rational blade wheel structure, can be produced by low-pressure casting and meet the high-revolving particularity requirement of impeller.
Conventional method is：Entire hub portion is aluminium alloy structure, and impeller linear velocity in high speed rotation is bigger, due to
Wheel hub wall is relatively thin, and intensity cannot meet requirement.
Or interior bushing method is used, impeller hub part is processed into mounting hole, steel bushing is passed through into the edge that expands with heat and contract with cold
Enter in impeller mounting hole, be screwed steel bushing and impeller.Since screw is equipped with gap, impeller revolves at a high speed for a long time
Turning post gap can be increasing, can not also meet requirement.
Invention content
Present invention aim to address prior arts can not meet the high-revolving requirement of aluminum alloy impeller, overcome prior art
With deficiency present in structure, a kind of new blade wheel structure is provided and had not only met low-pressure casting technique, but also the high rotating speed of impeller can be met
Requirement.
To achieve these goals, the technical solution adopted by the present invention is：It is a kind of to realize that high rotating speed using low-pressure casting
The blade wheel structure asked, the blade wheel structure belong to double shrouded wheel, and the general shape of the wheel hub is column, and steel bushing is embedded in wheel hub
In, for being connected with driving device；Steel bushing is embedded in impeller hub and casts together；The blade wheel structure mainly includes：
Wheel cap (1), blade (2), wheel hub (3), steel bushing (4)；Steel bushing (4) is mainly formed by the following parts：Part (5) on impeller hub,
Radial slot (6), axial boss (7), impeller installing technological hole (8), installation keyway (9).
Further, blade shape is rotated by a certain angle according to axis, according to it is circumferentially spaced be uniformly located at it is described
On wheel hub；The wheel cap thickness from one end of the wheel hub to the other end radially size gradually increase and gradually it is thinning；Leaf
Piece number is 16.
Further, steel bushing is 10MM axially processing a width, and thickness is the axial boss of 5MM, for preventing
Axial rotation during wheel rotation between steel bushing and aluminum alloy impeller；Steel bushing processes two width in radial direction
10MM, thickness are the installation keyways of 2.8MM, for preventing the axial direction during wheel rotation between steel bushing and aluminum alloy impeller from turning
It is dynamic.
Further, the material of the material selection 12NI3 of steel bushing.The material of the material selection 12NI3 of steel bushing, hardness
Height, machining property is good, counter-bending, and torsional property is good
Further, working speed degree requirement：51300R/MIN, linear velocity reach：59600M/MIN.Beyond routine
The requirement of aluminum alloy impeller.
Further, a diameter of Φ 56.9 of the small end column of impeller hub needs on column to process the axis hole of Φ 40, small
The thick unilateral 8.4MM of end wall.Small end is in the position that centre-to-centre spacing is 32 and needs to process the circular hole of Φ 4, and bore edges are small apart from column
There was only 3.5MM in end.
Impeller hub small end is to make up the problems such as small end wall of impeller hub column is thin, and shape is impeller hub curve
Processing.The coupling part of steel bushing and impeller --- impeller installing technological hole (8), installation keyway (9) are to be able to ensure casting
Impeller afterwards can be connected firmly with steel bushing, can not rotate in use.A little dowels are done on steel bushing, for increase steel bushing with
The bonding strength of impeller.Steel bushing is 10MM axially processing width, and thickness is the axial boss of 5MM, for preventing impeller from turning
Axial rotation during dynamic between steel bushing and aluminum alloy impeller.It is 10MM that steel bushing processes two width in radial direction, thick
Degree is the installation keyway of 2.8MM, for preventing the axial rotation during wheel rotation between steel bushing and aluminum alloy impeller.In this way
Prevent rotation axially and radially between impeller and steel bushing.So that steel bushing and impeller link together, it is combined into one.
It is of the invention to form the impeller of steel bushing and aluminium alloy for an entirety in this way, combine the intensity and aluminium alloy of steel bushing
The advantages of impeller, improve the intensity of impeller, the antitorque mechanical performances such as bend.The impeller produced using the technology of the present invention is to pass through steel
Set is directly connected to device drives device, and intensity is apparently higher than aluminium alloy, and actual use neutrality disclosure satisfy that the demand of production.
Description of the drawings
Fig. 1 is the overall structure diagram of this blade wheel structure of the present invention；
Fig. 2 is the overall structure figure of steel bushing；
Fig. 3 is the overall structure figure of steel bushing；
Fig. 4 is the vertical view of steel bushing；
Fig. 5 is the schematic diagram of the radial slot of steel bushing；
In figure：1. wheel cap；2. blade；3. wheel hub；4. steel bushing；5. part on impeller hub；6. radial slot；It is 7. axial convex
Platform；8. impeller installing technological hole；9 installation keyways
Specific embodiment
A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting, which belongs to double shrouded wheel, described
The general shape of wheel hub is column, and steel bushing is inlayed in the hub, for being connected with driving device；Steel bushing is embedded in impeller hub
In cast together；The blade wheel structure mainly includes：Wheel cap (1), blade (2), wheel hub (3), steel bushing (4)；Steel bushing (4) is main
It is formed by the following parts：Part (5) on impeller hub, radial slot (6), axial boss (7), impeller installing technological hole (8), installation
Keyway (9).
Further, blade shape is rotated by a certain angle according to axis, according to it is circumferentially spaced be uniformly located at it is described
On wheel hub；The wheel cap thickness from one end of the wheel hub to the other end radially size gradually increase and gradually it is thinning；Leaf
Piece number is 16.
Further, steel bushing is 10MM axially processing a width, and thickness is the axial boss of 5MM, for preventing
Axial rotation during wheel rotation between steel bushing and aluminum alloy impeller；Steel bushing processes two width in radial direction
10MM, thickness are the installation keyways of 2.8MM, for preventing the axial direction during wheel rotation between steel bushing and aluminum alloy impeller from turning
It is dynamic.
Further, the material of the material selection 12NI3 of steel bushing.The material of the material selection 12NI3 of steel bushing, hardness
Height, machining property is good, counter-bending, and torsional property is good
Further, working speed degree requirement：51300R/MIN, linear velocity reach：59600M/MIN.Beyond routine
The requirement of aluminum alloy impeller.
Further, a diameter of Φ 56.9 of the small end column of impeller hub needs on column to process the axis hole of Φ 40, small
The thick unilateral 8.4MM of end wall.Small end is in the position that centre-to-centre spacing is 32 and needs to process the circular hole of Φ 4, and bore edges are small apart from column
There was only 3.5MM in end.
It forms the impeller of steel bushing and aluminium alloy for an entirety in this way, combines the intensity and aluminum alloy impeller of steel bushing
Advantage, improves the intensity of impeller, the antitorque mechanical performances such as bend.The impeller produced using the technology of the present invention is with setting by steel bushing
Standby driving device is directly connected to, and intensity is apparently higher than aluminium alloy, and actual use neutrality disclosure satisfy that the demand of production.
Claims (1)
1. a kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting, it is characterised in that：Steel bushing is embedded in impeller hub
In cast together；The blade wheel structure mainly includes：Wheel cap (1), blade (2), wheel hub (3), steel bushing (4)；Steel bushing (4) is main
It is formed by the following parts：Part (5) on impeller hub, radial slot (6), axial boss (7), impeller installing technological hole (8), installation
Keyway (9)；Blade is uniformly located on the wheel hub according to circumferentially spaced according to axis；The wheel cap thickness is from the wheel hub
One end to the other end radially size gradually increase and gradually it is thinning；Steel bushing is 10MM axially processing a width,
Thickness is the axial boss of 5MM, for preventing the axial rotation during wheel rotation between steel bushing and aluminum alloy impeller；Steel bushing
It is 10MM to process two width in radial direction, and thickness is the installation keyway of 2.8MM, for preventing steel during wheel rotation
Axial rotation between set and aluminum alloy impeller；
The material of the material selection 12NI3 of steel bushing；
A diameter of Φ 56.9 of the small end column of impeller hub needs on column to process the axis hole of Φ 40, and small end wall thickness is unilateral
8.4MM；Small end is in the position that centre-to-centre spacing is 32 and needs to process the circular hole of Φ 4, and bore edges only have apart from column small end
3.5MM；
Steel bushing is equipped with dowel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153970.0U CN207598570U (en) | 2017-09-11 | 2017-09-11 | A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153970.0U CN207598570U (en) | 2017-09-11 | 2017-09-11 | A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598570U true CN207598570U (en) | 2018-07-10 |
Family
ID=62753475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721153970.0U Expired - Fee Related CN207598570U (en) | 2017-09-11 | 2017-09-11 | A kind of blade wheel structure that high rotating speed requirement is realized using low-pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116726377A (en) * | 2023-03-15 | 2023-09-12 | 心擎医疗（苏州）股份有限公司 | Impeller assembly, injection mold thereof, pump head and interventional catheter device |
-
2017
- 2017-09-11 CN CN201721153970.0U patent/CN207598570U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116726377A (en) * | 2023-03-15 | 2023-09-12 | 心擎医疗（苏州）股份有限公司 | Impeller assembly, injection mold thereof, pump head and interventional catheter device |
| CN116726377B (en) * | 2023-03-15 | 2024-05-24 | 心擎医疗（苏州）股份有限公司 | Impeller assembly, injection mold thereof, pump head and interventional catheter device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 |