CN106015089A - Centrifugal compressor impeller structure suitable for threaded connection - Google Patents
Centrifugal compressor impeller structure suitable for threaded connection Download PDFInfo
- Publication number
- CN106015089A CN106015089A CN201610331617.0A CN201610331617A CN106015089A CN 106015089 A CN106015089 A CN 106015089A CN 201610331617 A CN201610331617 A CN 201610331617A CN 106015089 A CN106015089 A CN 106015089A
- Authority
- CN
- China
- Prior art keywords
- centrifugal compressor
- wheel hub
- impeller
- aluminium alloy
- compressor impeller
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Abstract
The invention provides a centrifugal compressor impeller structure suitable for threaded connection. The centrifugal compressor impeller structure suitable for threaded connection comprises an aluminum alloy hub and a resin impeller, wherein the aluminum alloy hub is arranged in the position of the axis of the resin impeller, and a threaded hole used for being connected with a turbine rotary shaft is formed in the hub back of one end of the aluminum alloy hub. Compared with the prior art, the centrifugal compressor impeller structure suitable for threaded connection has the following advantage that a thread connected with the turbine rotary shaft is machined on the hub back of the aluminum alloy hub; and compared with a traditional hollow shaft type centrifugal compressor impeller, the stress of the center of the impeller is reduced to a great extent, damage to the resin impeller is controlled more effectively, and the using strength of the resin impeller is improved.
Description
Technical field
The invention belongs to exhaust turbine pressuring technology field, especially relate to a kind of be suitable for threaded from
Heart gas compressor blade wheel construction.
Background technology
Lifting along with power of IC engine density, it is desirable to exhaust gas turbocharge reaches higher pressure ratio.But
Along with problem generals such as improving constantly of supercharging pressure ratio, the low-speed torque characteristic of electromotor and transient response differences
Increasingly severe, for automobile-used operating mode, turbocharger and vehicular engine under lower-speed state to be reached
Matched well, it is desirable to centrifugal compressor must possess and have preferable dynamic response, therefore promotes centrifugal
The dynamic response of compressor becomes one of key technology realizing pressure charging system and electromotor matched well.
The commonly used aluminum alloy materials of centrifugal compressor impeller at present, due to the restriction of material, by turbine
It is delivered to there is hesitation during the kinetic energy of compressor is converted into the pressure energy of gas, uses lighter
Material can shorten acceleration time of supercharger rotor when electromotor accelerates and improve intake lag, from
And improve low speed torque performance and the transient response of electromotor；Therefore resin impeller is introduced in supercharger
Centrifugal compressor designs, but resin impeller is faced with the problem that centrifugal stress is higher, is therefore badly in need of
A kind of method improving centrifugal compressor resin impeller stress so that centrifugal compressor resin impeller can hold
By higher stress state.
Summary of the invention
In view of this, it is contemplated that propose a kind of applicable threaded centrifugal compressor impeller structure,
Effectively to reduce the stress distribution of centrifugal compressor resin impeller internal, it is ensured that the safety of resin impeller makes
With.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of applicable threaded centrifugal compressor impeller structure, including aluminium alloy wheel hub and resin leaf
Wheel, described aluminium alloy wheel hub is located at the axle center of resin impeller, at the wheel back of the body of described aluminium alloy wheel hub one end
It is provided with the screwed hole for being connected with turbine shaft.
Further, by resin impeller and aluminium alloy wheel hub integrator in casting process.
Further, described aluminium alloy wheel hub is many tip surfaces formula aluminium alloy wheel hub.
Further, the tip surface number of described many tip surfaces formula aluminium alloy wheel hub can be 4-6.
Further, the tip surface side of described many tip surfaces formula aluminium alloy wheel hub slopes inwardly 30-50 degree.
Relative to prior art, present invention have the advantage that
(1) present invention processes the screw thread being connected with turbine shaft at the aluminum alloy wheel hub wheel back of the body, with tradition
Shaft-penetrating type centrifugal compressor impeller compare, significantly reduce the stress at impeller central, more effectively
Control resin impeller destruction, improve resin impeller use intensity；
(2) simple in construction, easy to process, practical easily popularization
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, the present invention's
Schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.?
In accompanying drawing:
Fig. 1 is the schematic diagram of centrifugal compressor impeller structure described in the embodiment of the present invention；
Fig. 2 is the sectional view of centrifugal compressor impeller structure described in the embodiment of the present invention.
Description of reference numerals:
1-resin impeller, 2-aluminium alloy wheel hub, 3-screwed hole.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of applicable threaded centrifugal compressor impeller structure, as it is shown in figure 1, include aluminum alloy wheel
Hub 2 and resin impeller 1, described aluminium alloy wheel hub 2 is located at the axle center of resin impeller 1, and described aluminum closes
It is provided with the screwed hole 3 for being connected with turbine shaft at the wheel back of the body of gold wheel hub 2 one end.
By 2-in-1 to resin impeller 1 and aluminium alloy wheel hub integral in casting process.
In order to strengthen fastening effect therebetween, described aluminium alloy wheel hub 2 is many tip surfaces formula aluminum alloy wheel
Hub.
The tip surface number of described many tip surfaces formula aluminium alloy wheel hub can be 4-6.
The tip surface side of described many tip surfaces formula aluminium alloy wheel hub slopes inwardly 30-50 degree.
The screwed hole 3 being connected with turbine shaft is processed at the wheel back of the body of aluminium alloy wheel hub 2, wheel back of the body thickness L1
Should be greater than degree of depth L2 of screwed hole, as shown in Figure 2.
The present invention uses the aluminium alloy wheel hub 2 with tip surface, in casting process, resin material is in connection
And it is processed into centrifugal compressor impeller, and with the more prominent impeller wheel back of the body, in the aluminium alloy portion of the wheel back of the body
Divide thread mill drilling 3, it is achieved with the connection of turbine shaft.Thus significantly reduce the centrifugal of impeller internal
Stress, improves internal stress distribution state, the safety degree of desire that more efficiently lifting resin impeller runs.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection scope of the present invention.
Claims (5)
1. one kind is suitable for threaded centrifugal compressor impeller structure, it is characterised in that: include that aluminum closes
Gold wheel hub (2) and resin impeller (1), described aluminium alloy wheel hub (2) is located at resin impeller (1)
At axle center, at the wheel back of the body of described aluminium alloy wheel hub (2) one end, it is provided with the spiral shell for being connected with turbine shaft
Pit.
Applicable threaded centrifugal compressor impeller structure the most according to claim 1, it is special
Levy and be: by resin impeller (1) and aluminium alloy wheel hub (2) integrator in casting process.
Applicable threaded centrifugal compressor impeller structure the most according to claim 2, it is special
Levy and be: described aluminium alloy wheel hub (2) is many tip surfaces formula aluminium alloy wheel hub.
Applicable threaded centrifugal compressor impeller structure the most according to claim 3, it is special
Levy and be: the tip surface number of described many tip surfaces formula aluminium alloy wheel hub can be 4-6.
Applicable threaded centrifugal compressor impeller structure the most according to claim 3, it is special
Levy and be: the tip surface side of described many tip surfaces formula aluminium alloy wheel hub slopes inwardly 30-50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331617.0A CN106015089A (en) | 2016-05-18 | 2016-05-18 | Centrifugal compressor impeller structure suitable for threaded connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331617.0A CN106015089A (en) | 2016-05-18 | 2016-05-18 | Centrifugal compressor impeller structure suitable for threaded connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015089A true CN106015089A (en) | 2016-10-12 |
Family
ID=57097469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610331617.0A Pending CN106015089A (en) | 2016-05-18 | 2016-05-18 | Centrifugal compressor impeller structure suitable for threaded connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015089A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU531930A1 (en) * | 1974-04-05 | 1976-10-15 | Коломенский Тепловозостроительный Завод Им. В.В.Куйбышева | Rotor of a centrifugal compressor |
| JPS62121900A (en) * | 1985-11-20 | 1987-06-03 | Toyota Motor Corp | Manufacture of ceramic turbo wheel |
| JPH024997U (en) * | 1988-06-22 | 1990-01-12 | ||
| US4986733A (en) * | 1989-10-30 | 1991-01-22 | Allied-Signal, Inc. | Turbocharger compressor wheel assembly with boreless hub compressor wheel |
| US20050056013A1 (en) * | 2003-08-28 | 2005-03-17 | General Electric Company | Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length |
| CN201386698Y (en) * | 2009-02-24 | 2010-01-20 | 大连亿斯德制冷设备有限公司 | Low-temperature-resistant high-efficiency energy-saving cylindrical axial flow fan |
| DE102008056058A1 (en) * | 2008-08-04 | 2010-02-11 | Mtu Friedrichshafen Gmbh | Exhaust gas turbo charger, has rotor and compressor rotor coaxially connected via shaft, thread adapter screwed on shaft from side of compressor, and centric recess provided with internal thread fitted at external thread at thread adapter |
-
2016
- 2016-05-18 CN CN201610331617.0A patent/CN106015089A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU531930A1 (en) * | 1974-04-05 | 1976-10-15 | Коломенский Тепловозостроительный Завод Им. В.В.Куйбышева | Rotor of a centrifugal compressor |
| JPS62121900A (en) * | 1985-11-20 | 1987-06-03 | Toyota Motor Corp | Manufacture of ceramic turbo wheel |
| JPH024997U (en) * | 1988-06-22 | 1990-01-12 | ||
| US4986733A (en) * | 1989-10-30 | 1991-01-22 | Allied-Signal, Inc. | Turbocharger compressor wheel assembly with boreless hub compressor wheel |
| US20050056013A1 (en) * | 2003-08-28 | 2005-03-17 | General Electric Company | Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length |
| DE102008056058A1 (en) * | 2008-08-04 | 2010-02-11 | Mtu Friedrichshafen Gmbh | Exhaust gas turbo charger, has rotor and compressor rotor coaxially connected via shaft, thread adapter screwed on shaft from side of compressor, and centric recess provided with internal thread fitted at external thread at thread adapter |
| CN201386698Y (en) * | 2009-02-24 | 2010-01-20 | 大连亿斯德制冷设备有限公司 | Low-temperature-resistant high-efficiency energy-saving cylindrical axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |