CN105402157B - A kind of monoblock type dish axle structure - Google Patents
A kind of monoblock type dish axle structure Download PDFInfo
- Publication number
- CN105402157B CN105402157B CN201511003542.5A CN201511003542A CN105402157B CN 105402157 B CN105402157 B CN 105402157B CN 201511003542 A CN201511003542 A CN 201511003542A CN 105402157 B CN105402157 B CN 105402157B
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- CN
- China
- Prior art keywords
- wheel disc
- disc
- shaft
- integral
- round disk
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- 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.)
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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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
Abstract
The invention discloses a kind of monoblock type dish axle structures, are related to compressor technical field.The monoblock type dish axle structure, include the first wheel disc (1), the second wheel disc (3), also include integral disc-shaft (2), the integral disc-shaft (2) includes axle journal (21) and third round disk (22), and the axle journal (21) is integrally formed with the third round disk (22)；The integral disc-shaft (2) is fixedly connected with first wheel disc (1) and the second wheel disc (3) by connector.The beneficial effects of the present invention are：Traditional wheel disc and axle journal are processed integrally in the present invention, ensure that the concentricity of wheel disc and axle journal, compressor rotates more steady.
Description
Technical field
The present invention relates to compressor technical fields, and in particular to a kind of monoblock type dish axle structure.
Background technology
Wheel disc and axle journal are the important components in compressor, and concentricity seriously affects the vibration characteristics of compressor rotor.
The wheel disc and axle journal of conventional structure be positioned by end face axial, seam allowance radial positioning, bolt are axially connected and fixed (its illustrate
Figure is shown in Fig. 1), the connection of multiple tracks seam allowance reduces rotor concentricity, there are unfavorable factors to rotor oscillation.Therefore, there is an urgent need for a kind of complete
New wheel disc journal structure to improve the concentricity of wheel disc and the diameter of axle, improves its vibration characteristics.
The content of the invention
The object of the present invention is to provide a kind of monoblock type dish axle structure, with solution or at least in the presence of mitigation technique background
At least one at the problem of.
The technical solution adopted by the present invention is：A kind of monoblock type dish axle structure is provided, comprising the first wheel disc, the second wheel disc,
Also comprising integral disc-shaft, the integral disc-shaft includes axle journal and third round disk, and the axle journal is integrated into the third round disk
Type；The integral disc-shaft is fixedly connected with first wheel disc and the second wheel disc by connector；
It is provided with installation seam allowance on the third round disk of the integral disc-shaft, the installation seam allowance is for described in radial positioning the
One wheel disc is fixedly connected with second wheel disc；
The installation seam allowance set on the third round disk is male half coupling, and first wheel disc is correspondingly arranged on the second wheel disc
Inner stopper, the male half coupling and the first wheel disc of inner stopper cooperation radial positioning, the second wheel disc and integral disc-shaft.
Preferably, the connector is hinged bolts, is provided on first wheel disc, integral disc-shaft and the second wheel disc
Articulation hole, the articulation hole are used to install the hinged bolts.
Preferably, the connecting portion of the axle journal and third round disk is provided with knuckle.
Preferably, also comprising positioning pin, dowel hole is provided on first wheel disc, the second wheel disc and integral disc-shaft,
The positioning pin is mounted in the dowel hole, for the first wheel disc, the second wheel disc and integral disc-shaft, institute described in radial positioning
The first wheel disc, the second wheel disc and integral disc-shaft is stated to be bolted to connection.
The beneficial effects of the present invention are：
Traditional wheel disc and axle journal are processed integrally in the present invention, ensure that the concentricity of wheel disc and axle journal, compressor
It rotates more steady.
The connector of first wheel disc, the second wheel disc and integral disc-shaft uses articulation hole, is conducive to improve the first wheel disc, second
Concentricity between wheel disc and integral disc-shaft.
Installation seam allowance on third round disk is arranged to inner stopper, the first wheel disc and the second wheel disc and structure of the prior art
Size is identical, improves the versatility and interchangeability of part.
Installation seam allowance on third round disk is arranged to male half coupling, and the first wheel disc and the second wheel disc are correspondingly arranged on inner stopper,
The diameter of seam allowance is reduced, is conducive to improve the circularity for coordinating seam allowance in single part, and then improves seam allowance radial positioning precision.
The connecting portion of axle journal and third round disk is provided with knuckle, and knuckle can play release concentrated stress
Effect is conducive to improve the intensity of integral disc-shaft.
Dowel hole is provided on first wheel disc, the second wheel disc and integral disc-shaft, positioning pin is mounted on the dowel hole
Interior, generic connectivity bolt can be selected in connection bolt, and processing is simple.
Description of the drawings
Fig. 1 is the scheme of installation of wheel disc and axle journal in background technology；
Fig. 2 is the scheme of installation of the monoblock type dish axle structure of the present invention.
Wherein, the first wheel discs of 1-, 2- integral disc-shafts, 21- axle journals, 22- third round disks, the second wheel discs of 3-.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
As shown in Fig. 2, a kind of monoblock type dish axle structure, comprising the first wheel disc 1, the second wheel disc 3, also comprising integral disc-shaft 2,
The integral disc-shaft 2 includes axle journal 21 and third round disk 22, and the axle journal 21 is integrally formed with the third round disk 22；It is described
Integral disc-shaft 2 is fixedly connected with 1 and second wheel disc 3 of the first wheel disc by connector.
Axle journal 21 is integrally formed with third round disk 22 in the present invention, ensure that the concentricity of wheel disc and axle journal, compressor
It rotates more steady.
It is understood that the axle journal 21 can select integral formation method with third round disk 22 according to actual conditions.
For example, in an alternative embodiment, the axle journal 21 is integrally formed with third round disk 22 by 3D printing technique；At another
In alternative embodiment, the axle journal 21 passes through casting integrated shaping with third round disk 22.
Connecting hole is provided on integral disc-shaft 2, the connecting hole passes through after axle journal 21 is integrally formed with third round disk 22
Mechanical processing manufacture.
In the present embodiment, the connector be hinged bolts, first wheel disc 1,2 and second wheel disc of integral disc-shaft
Articulation hole is provided on 3, the articulation hole is used to install the hinged bolts.
It is understood that first wheel disc 1, the connection of 2 and second wheel disc 3 of integral disc-shaft can be all using articulations
Hole bolt, for example, in an alternative embodiment, circumference uniform distribution is provided on the flange that the first wheel disc 1 is connected with integral disc-shaft 2
Multiple connecting holes, circumference uniform distribution is provided with multiple connecting holes, integral disc-shaft 2 on the flange that the second wheel disc 3 is connected with integral disc-shaft 2
The position circumference uniform distribution being connected with the first wheel disc 1 and the second wheel disc 3 is provided with the connecting hole of identical quantity, the hinged bolts
The first wheel disc 1,2 and second wheel disc 3 of integral disc-shaft are sequentially passed through, and passes through self-locking nut and is fastenedly connected.
The advantages of being connected using hinged bolts is：Be conducive to improve the first wheel disc, the second wheel disc and integral disc-shaft it
Between concentricity.
It is understood that part articulation may be employed in first wheel disc 1, the connection of 2 and second wheel disc 3 of integral disc-shaft
Hole bolt positioning, remaining connection bolt the advantage is that using generic connectivity bolt：First can be realized by hinged bolts
The radial positioning of wheel disc 1,2 and second wheel disc 3 of integral disc-shaft, remaining connection bolt uses generic connectivity bolt, easy to connect, adds
Work is simple.
It is understood that using part hinged bolts positioning when, the part hinged bolts at least provided with
Two, and set along connecting flange circumference uniform distribution.General positioning hinged bolts circumference uniform distribution sets 3,4 or 6.
In the present embodiment, installation seam allowance is provided on the third round disk 22 of the integral disc-shaft 2, the installation seam allowance is used
It is fixedly connected in the first wheel disc 1 described in radial positioning with second wheel disc 3.The advantage is that, be conducive to improve the first wheel disc,
Concentricity between second wheel disc and integral disc-shaft.
In the present embodiment, the installation seam allowance set on the third round disk 22 is inner stopper, first wheel disc 1 and the
Two wheel discs 3 are correspondingly arranged on male half coupling, the inner stopper and male half coupling cooperation radial positioning the first wheel disc 1, the second wheel disc 3
And integral disc-shaft 2.It the advantage is that, the first wheel disc is identical with structure size of the prior art with the second wheel disc, improves zero
The versatility and interchangeability of part.
It is understood that the installation seam allowance set on the third round disk 22 is male half coupling, the male half coupling is the 3rd
The radial position of wheel disc 22 is arranged on the inside of the connector, and 1 and second wheel disc 3 of the first wheel disc is correspondingly arranged on interior stop
Mouthful, the male half coupling and inner stopper cooperation radial positioning the first wheel disc 1, the second wheel disc 3 and integral disc-shaft 2.Its advantage exists
In reducing the diameter of seam allowance, be conducive to improve the circularity for coordinating seam allowance in single part, and then improve seam allowance radial positioning essence
Degree.
It is understood that the length that axially engages of the inner stopper and male half coupling is 3~5 millimeters, it the advantage is that, pacify
Assembly and disassembly are unloaded simply, and seam allowance cooperation can bear certain radial load, are conducive to improve the service life of connector.
In the present embodiment, the connecting portion of the axle journal 21 and third round disk 22 is provided with knuckle.Its advantage exists
In knuckle can play the role of discharging concentrated stress, be conducive to improve the intensity of integral disc-shaft.
It is understood that the connecting portion in the axle journal 21 and third round disk 22 can also set compensating groove.For example,
In an alternative embodiment, in the axle journal 21 and the connecting portion of third round disk 22, the close axle journal 21 of third round disk 22
Side on be provided with the arc-shaped annular groove of indent, for discharging the stress concentration of junction；In another alternative embodiment
In, in the axle journal 21 and the connecting portion of third round disk 22, the side of the close third round disk 22 of axle journal 21 is provided with indent
Arc-shaped annular groove, for discharging the stress concentration of junction.
It is understood that the monoblock type dish axle structure is also comprising positioning pin, first wheel disc 1, the second wheel disc 3 and
Dowel hole is provided on integral disc-shaft 2, the positioning pin is mounted in the dowel hole, for described in radial positioning first
Wheel disc 1, the second wheel disc 3 and integral disc-shaft 2, first wheel disc 1, the second wheel disc 3 and integral disc-shaft 2 are fixed by plain bolt
Connection.
It is understood that when using finger setting is positioned, the positioning pin is at least provided with two, and along connecting flange
Circumference uniform distribution is set, and general positioning pin circumference uniform distribution sets 3,4 or 6.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (4)
1. a kind of monoblock type dish axle structure includes the first wheel disc (1), the second wheel disc (3), it is characterised in that：Also include integral disc
Axis (2), the integral disc-shaft (2) include axle journal (21) and third round disk (22), the axle journal (21) and the third round disk
(22) it is integrally formed；
The integral disc-shaft (2) is fixedly connected with first wheel disc (1) and the second wheel disc (3) by connector；
Installation seam allowance is provided on the third round disk (22) of the integral disc-shaft (2), the installation seam allowance is used for radial positioning institute
The first wheel disc (1) is stated to be fixedly connected with second wheel disc (3)；
The installation seam allowance set on the third round disk (22) is male half coupling, and first wheel disc (1) is corresponding with the second wheel disc (3)
It is provided with inner stopper, the male half coupling and inner stopper cooperation the first wheel disc of radial positioning (1), the second wheel disc (3) and entirety
Dish axle (2).
2. monoblock type dish axle structure as described in claim 1, it is characterised in that：The connector is hinged bolts, described
Articulation hole is provided on first wheel disc (1), integral disc-shaft (2) and the second wheel disc (3), the articulation hole is used to install the articulation
Hole bolt.
3. monoblock type dish axle structure as described in claim 1, it is characterised in that：The axle journal (21) and the third round disk
(22) connecting portion is provided with knuckle.
4. monoblock type dish axle structure as described in claim 1, it is characterised in that：Also comprising positioning pin, first wheel disc
(1), dowel hole being provided on the second wheel disc (3) and integral disc-shaft (2), the positioning pin is mounted in the dowel hole,
For the first wheel disc (1), second wheel disc (3) and the integral disc-shaft (2) described in radial positioning, first wheel disc (1),
Second wheel disc (3) and integral disc-shaft (2) are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003542.5A CN105402157B (en) | 2015-12-25 | 2015-12-25 | A kind of monoblock type dish axle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003542.5A CN105402157B (en) | 2015-12-25 | 2015-12-25 | A kind of monoblock type dish axle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402157A CN105402157A (en) | 2016-03-16 |
| CN105402157B true CN105402157B (en) | 2018-06-05 |
Family
ID=55467849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511003542.5A Active CN105402157B (en) | 2015-12-25 | 2015-12-25 | A kind of monoblock type dish axle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402157B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2404187A1 (en) * | 2001-09-20 | 2003-03-20 | Nuovo Pignone Holding S.P.A. | Improved flange for connection between an axial compressor and high-pressure rotor disc unit in a gas turbine |
| CN200978720Y (en) * | 2006-07-26 | 2007-11-21 | 沈阳黎明航空发动机(集团)有限责任公司 | R110 heavy gas turbine compressor four-stage journal disc |
| CN101758159A (en) * | 2009-11-27 | 2010-06-30 | 贵州安大航空锻造有限责任公司 | Near isothermal forging method for whole titanium alloy disc shaft forgeable piece |
| CN201650665U (en) * | 2010-02-10 | 2010-11-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Connecting structure of heavy duty gas turbine compressor disk and shaft neck |
| CN102330605A (en) * | 2011-09-05 | 2012-01-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Heavy combustion engine assembling method for assembling rotor and front and rear supports in combining manner |
| CN203584577U (en) * | 2013-12-11 | 2014-05-07 | 中航商用航空发动机有限责任公司 | Connecting structure of gas compressor and turbine |
-
2015
- 2015-12-25 CN CN201511003542.5A patent/CN105402157B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2404187A1 (en) * | 2001-09-20 | 2003-03-20 | Nuovo Pignone Holding S.P.A. | Improved flange for connection between an axial compressor and high-pressure rotor disc unit in a gas turbine |
| CN200978720Y (en) * | 2006-07-26 | 2007-11-21 | 沈阳黎明航空发动机(集团)有限责任公司 | R110 heavy gas turbine compressor four-stage journal disc |
| CN101758159A (en) * | 2009-11-27 | 2010-06-30 | 贵州安大航空锻造有限责任公司 | Near isothermal forging method for whole titanium alloy disc shaft forgeable piece |
| CN201650665U (en) * | 2010-02-10 | 2010-11-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Connecting structure of heavy duty gas turbine compressor disk and shaft neck |
| CN102330605A (en) * | 2011-09-05 | 2012-01-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Heavy combustion engine assembling method for assembling rotor and front and rear supports in combining manner |
| CN203584577U (en) * | 2013-12-11 | 2014-05-07 | 中航商用航空发动机有限责任公司 | Connecting structure of gas compressor and turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402157A (en) | 2016-03-16 |
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