CN203384099U - Split type wind guiding impeller for centrifugal compressor - Google Patents
Split type wind guiding impeller for centrifugal compressor Download PDFInfo
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- CN203384099U CN203384099U CN201320453957.2U CN201320453957U CN203384099U CN 203384099 U CN203384099 U CN 203384099U CN 201320453957 U CN201320453957 U CN 201320453957U CN 203384099 U CN203384099 U CN 203384099U
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- inducer
- high speed
- speed shaft
- wheel disc
- hole
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- 239000000411 inducer Substances 0.000 claims abstract description 155
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 241001149930 Protura <class> Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses a split type wind guiding impeller for a centrifugal compressor. The conventional integral type wind guiding impeller is high in processing cost. The split type wind guiding impeller comprises an inducer and a wheel disc, wherein the inducer comprises an inducer hub and a plurality of inducer blades, the inducer blades are curved surface blades, and the inducer hub and the inducer blades are integrally formed; the wheel disc comprises a wheel disc hub and a plurality of wheel disc blades, the quantity of the wheel disc blades is equal to that of the inducer blades, and the wheel disc hub and the wheel disc blades are integrally formed; the wheel disc hub comprises an inducer mounting part and a high-speed shaft mounting part which are arranged coaxially and integrally formed; all the wheel disc blades form a planar blade body, the root of the planar blade body is arranged on the outer wall of the high-speed shaft mounting part, the top end face of the planar blade body is a plane, the side wall of the planar blade body is shaped like a curved surface; an inducer connecting shaft of the wheel disc is arranged inside an inducer mounting hole of the inducer; the inducer is in threaded connection with the wheel disc; the bottom of each inducer blade of the inducer is fitted with the top of the corresponding wheel disc blade of the wheel disc. The split type wind guiding impeller has the advantages of low processing cost, high precision, high impeller strength and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to centrifugal compressor, is specifically related to the split type impeller inducer of a kind of centrifugal compressor.
Background technique
Centrifugal compressor uses the integrated type impeller inducer usually at present, and the method for manufacturing the integrated type impeller inducer has numerical control mill system and welding to manufacture two kinds.Numerical control mill system is to mill system by computer programming on five number of coordinates control milling machines, and this processing method vane type line machining accuracy is high, reliable in quality, and impeller intensity is high, but five number of coordinates control milling machines are expensive, processing charges is high.Welding manufacture is first by the blade compression molding, one by one blade is welded on wheel disc, the shortcoming of this manufacture method is that the vane type line accuracy of manufacturing is low, is subject to the impact of the factors such as compression molding, welding procedure and heat treatment again, quality is unstable, and impeller intensity is lower.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of centrifugal compressor split type impeller inducer.
The utility model comprises inducer and wheel disc.
Described inducer comprises integrated inducer wheel hub and a plurality of inducer blade.The inducer wheel hub is cylindrical shape, the cross section of cylinder inner cavity is the T font, the little part in aperture is the inducer mounting hole, the large part in aperture is inducer axially locating hole, the inducer mounting hole is opened on the end face of inducer wheel hub, inducer axially locating hole is opened on the bottom surface of inducer wheel hub, and the inwall of inducer mounting hole has been attacked internal thread.Described inducer blade is the curved surface lamellar body, and bi-side are the parabola that surface equation is equal, and the root of inducer blade is arranged on the outer wall of inducer wheel hub, and all inducer blades are along circumferentially being distributed on the inducer wheel hub.
Described wheel disc comprises integrated wheel disc wheel hub and a plurality of wheel disk blade, and the quantity of wheel disk blade equates with the quantity of inducer blade.The wheel disc wheel hub comprises coaxial setting, integrated inducer mounting portion and high speed shaft mounting portion.Described inducer mounting portion is cylindrical shape, its cross section is the T font, the part that external diameter is little is the inducer coupling shaft, the part that external diameter is large is inducer axially locating axle, inducer coupling shaft and inducer axially locating axle coaxially arrange, one-body molded, the outer wall of inducer coupling shaft has been attacked outside thread, and the length of inducer axially locating axle is less than the length in inducer axially locating hole; The top end face of inducer mounting portion offers the seal groove of ring, and the central shaft of inducer mounting portion is to offering the flow deflecting cone supported hole.
Described high speed shaft mounting portion integral body is the curved frustoconic shape of bus, offers vertically high speed shaft axial auxiliary positioning hole and high speed shaft mounting hole.The high speed shaft mounting hole comprises three sections of coaxial setting, one end in first section high speed shaft mounting hole and the axial auxiliary positioning of high speed shaft hole joins, the other end in the axial auxiliary positioning of high speed shaft hole and an end of flow deflecting cone supported hole join, the other end of flow deflecting cone supported hole is opened on the end face of inducer mounting portion, and rear high speed shaft mounting hole is opened on the bottom surface of high speed shaft mounting portion; The aperture of rear high speed shaft mounting hole is greater than the aperture of first section high speed shaft mounting hole, and is less than the aperture of stage casing high speed shaft mounting hole, and the aperture in the axial auxiliary positioning of high speed shaft hole is greater than the aperture of flow deflecting cone supported hole and the aperture of high speed shaft mounting hole; The madial wall of high speed shaft mounting hole offers the keyway of long strip vertically.
Described wheel disk blade integral body is the plane lamellar body, and root is arranged on the outer wall of high speed shaft mounting portion, and the top end face is plane, and with the coplanar setting of top end face of high speed shaft mounting portion, sidewall is the curved surface shape; All wheel disk blades are along circumferentially being distributed on the high speed shaft mounting portion.
The inducer coupling shaft of described wheel disc is arranged in the inducer mounting hole of inducer, and inducer and wheel disc are threaded connection; The inducer axially locating axle of wheel disc is arranged in the inducer axially locating hole of inducer, and the bottom end face of inducer is arranged on the end, top of the high speed shaft mounting portion of wheel disc wheel hub, and the top end face of inducer and the top end of wheel disc arrange in the face of neat; Each inducer blade bottom of described inducer fits with the corresponding wheel disk blade top of wheel disc.
The beneficial effects of the utility model:
1, inducer can machine on plain-milling machine, and the vane type line on wheel disc can adopt the pattern method to machine on plain-milling machine, and processing cost is low, precision is high, impeller intensity is high.
2, the Placement of high speed shaft and impeller inducer is interference fit, and high speed shaft connects and drive the impeller inducer rotation by key, is beneficial to the dismounting of impeller inducer; Realize the axially locating of impeller inducer by flow deflecting cone and being connected of high speed shaft.Therefore when rotor high-speed turns round,, there is not screw thread machining error phenomenon in the phenomenon that do not rotate between impeller inducer and high speed shaft yet and affects connection.
The accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
The side view that Fig. 2 is Fig. 1;
The plan view that Fig. 3 is inducer in the utility model;
The A-A sectional view that Fig. 4 is Fig. 3;
The sectional view that Fig. 5 is wheel disc in the utility model;
The side view that Fig. 6 is Fig. 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, the split type impeller inducer of a kind of centrifugal compressor comprises inducer 1 and wheel disc 2.
As shown in Figure 3 and Figure 4, inducer 1 comprises integrated inducer wheel hub 1-1 and 16 inducer blade 1-2.Inducer wheel hub 1-1 is cylindrical shape, the cross section of cylinder inner cavity is the T font, the little part in aperture is inducer mounting hole 1-3, the large part in aperture is inducer axially locating hole 1-4, inducer mounting hole 1-3 is opened on the end face of inducer wheel hub 1-1, inducer axially locating hole 1-4 is opened on the bottom surface of inducer wheel hub 1-1, and the inwall of inducer mounting hole 1-3 has been attacked internal thread.Inducer blade 1-2 is the curved surface lamellar body, and bi-side are the parabola that surface equation is equal, and the root of inducer blade 1-2 is arranged on the outer wall of inducer wheel hub 1-1, and all inducer blades are along circumferentially being distributed on inducer wheel hub 1-1.
As shown in Figure 5 and Figure 6, wheel disc 2 comprises integrated wheel disc wheel hub 2-1 and 16 wheel disk blade 2-2.Wheel disc wheel hub 2-1 comprises coaxial setting, integrated inducer mounting portion and high speed shaft mounting portion.The inducer mounting portion is cylindrical shape, its cross section is the T font, the part that external diameter is little is inducer coupling shaft 2-3, the part that external diameter is large is inducer axially locating axle 2-4, inducer coupling shaft 2-3 and inducer axially locating axle 2-4 coaxially arrange, one-body molded, the outer wall of inducer coupling shaft 2-3 has been attacked outside thread 2-5, and the length of inducer axially locating axle 2-4 is less than the length of inducer axially locating hole 1-4; The top end face of inducer mounting portion offers the seal groove 2-6 of ring, and the central shaft of inducer mounting portion is to offering flow deflecting cone supported hole 2-7.
High speed shaft mounting portion integral body is the curved frustoconic shape of bus, offers vertically the axial auxiliary positioning of high speed shaft hole 2-8 and high speed shaft mounting hole 2-9.High speed shaft mounting hole 2-9 comprises three sections of coaxial setting, the end of first section high speed shaft mounting hole 2-9-1 and the axial auxiliary positioning of high speed shaft hole 2-8 joins, the other end of the axial auxiliary positioning of high speed shaft hole 2-8 and the end of flow deflecting cone supported hole 2-7 join, the other end of flow deflecting cone supported hole 2-7 is opened on the end face of inducer mounting portion, and rear high speed shaft mounting hole 2-9-3 is opened on the bottom surface of high speed shaft mounting portion; The aperture of rear high speed shaft mounting hole 2-9-3 is greater than the aperture of first section high speed shaft mounting hole 2-9-1, and be less than the aperture of stage casing high speed shaft mounting hole 2-9-2,2-8 aperture, the axial auxiliary positioning of high speed shaft hole is greater than the aperture of flow deflecting cone supported hole 2-7 and the aperture of high speed shaft mounting hole 2-9; The madial wall of high speed shaft mounting hole 2-9 offers the keyway 2-10 of long strip vertically.
Wheel disk blade 2-2 integral body is the plane lamellar body, and root is arranged on the outer wall of high speed shaft mounting portion, and the top end face is plane, and with the coplanar setting of top end face of high speed shaft mounting portion, sidewall is the curved surface shape; All wheel disk blades are along circumferentially being distributed on the high speed shaft mounting portion.
As depicted in figs. 1 and 2, the inducer coupling shaft 2-3 of wheel disc is arranged in the inducer mounting hole 1-3 of inducer, and inducer 1 and wheel disc 2 are threaded connection; The inducer axially locating axle 2-4 of wheel disc is arranged in the inducer axially locating hole 1-4 of inducer, the bottom end face of inducer 1 is arranged on the end, top of the high speed shaft mounting portion of wheel disc wheel hub 2-1, and the top end face of inducer and the top end of wheel disc 2 arrange in the face of neat; Each inducer blade 1-2 bottom of inducer fits with the corresponding wheel disk blade 2-2 top of wheel disc.
Under working state, the flow deflecting cone back shaft 3-2 of flow deflecting cone is arranged in the flow deflecting cone supported hole 2-7 of wheel disc, the top end of the bottom end face of the conehead 3-1 of flow deflecting cone and the top end face of inducer 1 and wheel disc 2 arranges in the face of neat, in the seal groove 2-6 of inducer, is provided with seal ring 5; The high speed shaft installation shaft 4-1 of high speed shaft is arranged in high speed shaft mounting hole 2-9, and high speed shaft installation shaft 4-1 comprises three sections of coaxial setting, and one section of every section high speed shaft installation shaft and high speed shaft mounting hole 2-9 is connected; The axle journal end of the high speed shaft axially locating axle 4-2 of high speed shaft is arranged on the bottom end face place of wheel disc 2; The high speed shaft coupling shaft 3-3 of flow deflecting cone is threaded with high speed shaft installation shaft 4-1; The axle journal end face of the high speed shaft axially locating axle 4-2 of the bottom end face of the split type impeller inducer of centrifugal compressor by the conehead 3-1 of flow deflecting cone and high speed shaft is realized axial restraint; Wheel disc 2 is connected by key 6 with high speed shaft 4, realizes circumferentially spacing.
Claims (2)
1. the split type impeller inducer of centrifugal compressor, comprise inducer and wheel disc, it is characterized in that:
Described inducer comprises integrated inducer wheel hub and a plurality of inducer blade; The inducer wheel hub is cylindrical shape, the cross section of cylinder inner cavity is the T font, the little part in aperture is the inducer mounting hole, the large part in aperture is inducer axially locating hole, the inducer mounting hole is opened on the end face of inducer wheel hub, inducer axially locating hole is opened on the bottom surface of inducer wheel hub, and the inwall of inducer mounting hole has been attacked internal thread; Described inducer blade is the curved surface lamellar body, and bi-side are the parabola that surface equation is equal, and the root of inducer blade is arranged on the outer wall of inducer wheel hub, and all inducer blades are along circumferentially being distributed on the inducer wheel hub;
Described wheel disc comprises integrated wheel disc wheel hub and a plurality of wheel disk blade, and the quantity of wheel disk blade equates with the quantity of inducer blade; The wheel disc wheel hub comprises coaxial setting, integrated inducer mounting portion and high speed shaft mounting portion; Described inducer mounting portion is cylindrical shape, its cross section is the T font, the part that external diameter is little is the inducer coupling shaft, the part that external diameter is large is inducer axially locating axle, inducer coupling shaft and inducer axially locating axle coaxially arrange, one-body molded, the outer wall of inducer coupling shaft has been attacked outside thread, and the length of inducer axially locating axle is less than the length in inducer axially locating hole; The top end face of inducer mounting portion offers the seal groove of ring, and the central shaft of inducer mounting portion is to offering the flow deflecting cone supported hole;
Described high speed shaft mounting portion integral body is the curved frustoconic shape of bus, offers vertically high speed shaft axial auxiliary positioning hole and high speed shaft mounting hole; The high speed shaft mounting hole comprises three sections of coaxial setting, one end in first section high speed shaft mounting hole and the axial auxiliary positioning of high speed shaft hole joins, the other end in the axial auxiliary positioning of high speed shaft hole and an end of flow deflecting cone supported hole join, the other end of flow deflecting cone supported hole is opened on the end face of inducer mounting portion, and rear high speed shaft mounting hole is opened on the bottom surface of high speed shaft mounting portion; The aperture in the axial auxiliary positioning of high speed shaft hole is greater than the aperture of flow deflecting cone supported hole and the aperture of high speed shaft mounting hole; The madial wall of high speed shaft mounting hole offers the keyway of long strip vertically;
Described wheel disk blade integral body is the plane lamellar body, and root is arranged on the outer wall of high speed shaft mounting portion, and the top end face is plane, and with the coplanar setting of top end face of high speed shaft mounting portion, sidewall is the curved surface shape; All wheel disk blades are along circumferentially being distributed on the high speed shaft mounting portion;
The inducer coupling shaft of described wheel disc is arranged in the inducer mounting hole of inducer, and inducer and wheel disc are threaded connection; The inducer axially locating axle of wheel disc is arranged in the inducer axially locating hole of inducer, and the bottom end face of inducer is arranged on the end, top of the high speed shaft mounting portion of wheel disc wheel hub, and the top end face of inducer and the top end of wheel disc arrange in the face of neat; Each inducer blade bottom of described inducer fits with the corresponding wheel disk blade top of wheel disc.
2. the split type impeller inducer of a kind of centrifugal compressor according to claim 1, it is characterized in that: the aperture of described rear high speed shaft mounting hole is greater than the aperture of first section high speed shaft mounting hole, and is less than the aperture of stage casing high speed shaft mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453957.2U CN203384099U (en) | 2013-07-26 | 2013-07-26 | Split type wind guiding impeller for centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453957.2U CN203384099U (en) | 2013-07-26 | 2013-07-26 | Split type wind guiding impeller for centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384099U true CN203384099U (en) | 2014-01-08 |
Family
ID=49872600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320453957.2U Expired - Fee Related CN203384099U (en) | 2013-07-26 | 2013-07-26 | Split type wind guiding impeller for centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
| CN106321511A (en) * | 2016-09-20 | 2017-01-11 | 南京华顺精密模具有限公司 | Turbofan of turbine and manufacturing method thereof |
-
2013
- 2013-07-26 CN CN201320453957.2U patent/CN203384099U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321511A (en) * | 2016-09-20 | 2017-01-11 | 南京华顺精密模具有限公司 | Turbofan of turbine and manufacturing method thereof |
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Split type air guide impeller assembly of centrifugal compressor Effective date of registration: 20140822 Granted publication date: 20140108 Pledgee: Zhang Jie Pledgor: HANGZHOU QIUSHI TURBINE MANUFACTURING Co.,Ltd.|Zhou Guoqiang|Zhou Yin Registration number: 2014330000027 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171207 Granted publication date: 20140108 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20191207 Granted publication date: 20140108 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 |