CN208565063U - A kind of high intensity vehicle supercharger compressor impeller - Google Patents
A kind of high intensity vehicle supercharger compressor impeller Download PDFInfo
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- CN208565063U CN208565063U CN201821324603.7U CN201821324603U CN208565063U CN 208565063 U CN208565063 U CN 208565063U CN 201821324603 U CN201821324603 U CN 201821324603U CN 208565063 U CN208565063 U CN 208565063U
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- wheel
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- impeller
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- wheel hub
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Abstract
The utility model belongs to turbocharging technology field, provide a kind of high-intensitive vehicle supercharger compressor impeller, including wheel hub, axis hole, wheel back, mainstream blade and splitterr vanes are furnished at the upper side of the wheel hub, the other side of the wheel hub is wheel back, and the wheel backgear exterior feature is formed by connecting using more straightways.It is obtained by Finite element arithmetic, the wheel antiform shape being formed by connecting using more straightways is respectively less than the wheel back structure of circular shape in the centrifugal stress numerical value of root of blade, failed areas range, it proves that technical solution provided by the utility model is able to solve impeller and easily forms high cycle fatigue or low-cycle fatigue problem to root of blade under Centrifugal Load, improves the structural strength of blade.
Description
Technical field
The utility model belongs to turbocharging technology field, and in particular to a kind of high intensity vehicle supercharger gas compressor blade
Wheel.
Background technique
The appearance of turbocharger has greatly facilitated the development of internal combustion engine, second be known as in internal combustion engine development history
A milestone.Turbocharger is a kind of rotating mechanical member of vane type, is mainly made of compressor and turbine, using starting
High temperature, the high pressure exhaust gas of machine discharge, expansion work and drive turbine to rotate in turbine, drive coaxial compressor impeller high speed
Rotation, after fresh air is inhaled into and is compressed by the rotation of compressor impeller, into cylinder, due to increasing inflation
Amount, atmospheric density increase, to make more fuel oil full combustions, engine are made to improve function under conditions of size constancy
Rate.
Turbine rotation drives coaxial impeller to do high speed rotation compression fresh air, is risen by compression pressure and temperature
It is high.Impeller will receive high-speed rotating Centrifugal Load and the effect of high pressure gas bring pressure loading in compressed air,
It is increased again because of air by compression temperature, impeller is also by the effect of temperature loading, and stress is complicated in the process for impeller, to blade
Impact especially root of blade intensity test it is more harsh.Root of blade is easy fatigue by the effect of Various Complex stress and produces
Raw crackle is even broken, and impeller life decides the service life of booster turbine rotor, to booster complete machine even engine
There can be larger impact.
Compressor impeller is influenced by centrifugal load, temperature loading and aerodynamic loading during the work time, and is centrifuged
Load is maximum to the stress influence of compressor impeller, is the principal element for determining compressor impeller stress.Compressor impeller from
The lower maximum stress of heart load effect is usually found at blade root, take turns carry on the back and the axis hole of impeller at etc. positions, maximum answer
The specific location that power occurs is related with the specific structure shape of impeller.And the stress at wheel back and axis hole can be by increasing in wheel back
The measures such as reinforcing rib are added to be improved, but such structure does not have remarkable result to the improvement of the centrifugal stress at blade root.
Utility model content
The purpose of the utility model is to provide a kind of high-intensitive vehicle supercharger compressor impeller, for solve impeller from
High cycle fatigue or low-cycle fatigue problem are easily formed to root of blade under the effect of heart load, improve the structural strength of blade.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: it is a kind of high intensity vehicle supercharger calm the anger
Machine impeller, including wheel hub, axis hole, wheel back, are furnished with mainstream blade and splitterr vanes at the upper side of the wheel hub, the wheel hub it is another
Side is wheel back, and the profile of the wheel back is formed by connecting using more straightways, and the angle between adjacent two straightways is blunt
Angle.
In one embodiment, seven mainstream blades and seven splitterr vanes are furnished at the upper side of the wheel hub.
The utility model only carries out again the wheel profile of the wheel back of impeller based on traditional compressor impeller overall structure
Adjusting and optimizing, traditional impeller wheel back are arc structure (referring to Fig. 1), and the wheel back structure of the utility model design is using more
Straightway is formed by connecting.FInite Element is a kind of effective method for calculating centrifugal stress, is had in many occasions
Effect is used and verifying, is obtained by Finite element arithmetic, the wheel antiform shape being formed by connecting using more straightways is in root of blade
Centrifugal stress numerical value, failed areas range be respectively less than the wheel back structure of circular shape, it was demonstrated that technology provided by the utility model
Scheme is able to solve impeller and easily forms high cycle fatigue or low-cycle fatigue problem to root of blade under Centrifugal Load, improves leaf
The structural strength of piece.
Detailed description of the invention
Fig. 1 is traditional pressure booster blower impeller structural schematic diagram；
Fig. 2 is pressure booster blower impeller structural schematic diagram in the utility model embodiment；
Appended drawing reference are as follows:
1 --- axis hole 2 --- wheel hub 3 --- mainstream blade
4 --- wheel back 5 --- impeller boss.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.In the utility model
Description in, the meaning of " plurality " is two or more, unless otherwise specifically defined.In retouching for the utility model
In stating, it should be noted that unless otherwise specified and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, mechanical connection or electrical connection be can be, the connection being also possible to inside two elements can be directly connected, and can also lead to
It crosses intermediary to be indirectly connected, for the ordinary skill in the art, can understand the term as the case may be
Concrete meaning.
A kind of pressure booster blower impeller as shown in Figure 2, including wheel hub 2, axis hole 1, wheel back 4,2 top one of wheel hub
Side is furnished with seven mainstream blades 3 and seven splitterr vanes, and the other side of the wheel hub is wheel back 4, and the profile of the wheel back 4 uses
More straightways are formed by connecting, and the angle between adjacent two straightways is obtuse angle.
In use, impeller is mounted in turbine shaft, turbine shaft passes through impeller shaft hole 1, and impeller is to be interference fitted
Mode is entrenched in the groove in turbine shaft, the position installation locking nut being adjacent to above impeller boss 5 in turbine shaft,
For fixing impeller and preventing impeller play in turbine shaft.
Effect of the compressor impeller high speed rotation by centrifugal load, the size of load and the quadratic power of its revolving speed are at just
Than.Centrifugal load is the Main Load that compressor impeller is born, and is had a major impact to the intensity of compressor impeller.Compressor impeller
The positions such as the maximum stress under Centrifugal Load is usually found at blade root, takes turns at the axis hole of back and impeller, this
Embodiment is intended to the wheel back structure by changing impeller to solve the stress of root of blade.FInite Element is to calculate centrifugal stress
A kind of effective method, has obtained effective application and verifying, has been obtained by Finite element arithmetic, in many occasions using more
The wheel antiform shape that root straightway is formed by connecting is respectively less than circular shape in the centrifugal stress numerical value of root of blade, failed areas range
Wheel back structure, it was demonstrated that technical solution provided by the utility model is able to solve impeller under Centrifugal Load to root of blade
High cycle fatigue or low-cycle fatigue problem are easily formed, the structural strength of blade is improved.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it
Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model
Hold.
Claims (2)
1. a kind of high intensity vehicle supercharger compressor impeller, including wheel hub (2), axis hole (1), wheel back (4), the wheel hub (2)
Upper side is furnished with mainstream blade (3) and splitterr vanes, and the other side of the wheel hub (2) is wheel back (4), it is characterised in that: institute
The profile for stating wheel back (4) is formed by connecting using more straightways, and the angle between adjacent two straightways is obtuse angle.
2. high intensity vehicle supercharger compressor impeller as described in claim 1, it is characterised in that: above the wheel hub (2)
Side is furnished with seven mainstream blades (3) and seven splitterr vanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324603.7U CN208565063U (en) | 2018-08-16 | 2018-08-16 | A kind of high intensity vehicle supercharger compressor impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324603.7U CN208565063U (en) | 2018-08-16 | 2018-08-16 | A kind of high intensity vehicle supercharger compressor impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565063U true CN208565063U (en) | 2019-03-01 |
Family
ID=65450809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821324603.7U Active CN208565063U (en) | 2018-08-16 | 2018-08-16 | A kind of high intensity vehicle supercharger compressor impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869393A (en) * | 2018-08-16 | 2018-11-23 | 湖南天雁机械有限责任公司 | A kind of high intensity vehicle supercharger compressor impeller |
-
2018
- 2018-08-16 CN CN201821324603.7U patent/CN208565063U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869393A (en) * | 2018-08-16 | 2018-11-23 | 湖南天雁机械有限责任公司 | A kind of high intensity vehicle supercharger compressor impeller |
| CN108869393B (en) * | 2018-08-16 | 2024-04-16 | 湖南天雁机械有限责任公司 | High-strength supercharger compressor impeller for vehicle |
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