CN108412553A - A kind of axle construction and high speed rotor of optimization high speed rotor operation stability - Google Patents
A kind of axle construction and high speed rotor of optimization high speed rotor operation stability Download PDFInfo
- Publication number
- CN108412553A CN108412553A CN201810384635.4A CN201810384635A CN108412553A CN 108412553 A CN108412553 A CN 108412553A CN 201810384635 A CN201810384635 A CN 201810384635A CN 108412553 A CN108412553 A CN 108412553A
- Authority
- CN
- China
- Prior art keywords
- rotary part
- high speed
- support portion
- axis
- speed rotor
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000005457 optimization Methods 0.000 title claims abstract description 12
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000112 cooling gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/06—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention provides a kind of axle construction of optimization high speed rotor operation stability, the axis is equipped at least two connected rotary part mounting portions, at least one rotary part mounting portion is equipped with the support portion of protrusion, and the junction interval of the support portion and adjacent rotary part mounting portion is arranged；The support portion is overlapped around the outer surface of axis, the center line of support portion with the center line of axis.The present invention is on the basis of original axis, increase the support portion near rotary part mounting portion, support portion uniform ring is around the outer surface of axis, when running at high speed, rotor can work normally interconnecting piece loses self-centering function or abrasion occurs for the place of being detachably connected, and achieve the purpose that rotor is remained to stablize under bad working environments, be worked normally.
Description
Technical field
A kind of a kind of rotor technology field the present invention relates to axle construction and comprising the axle construction, and in particular to optimization high speed
The axle construction and high speed rotor of rotating stability.
Background technology
Currently, the connection type between most of gas turbine rotor grades and grade is end tooth connection, the effect of end tooth connection
It can be achieved on self-centering and torsion pass in operating.But the bolt pretightening that the engagement of both ends between cog very relies on both ends compresses,
When occurring loosening or the case where serious wear occurs in end tooth, the effect of end tooth connection can fail, rotor run at high speed when
Gently rotor rubbing, major accident heavy then that rotor retirement occurs then occur for time.
Invention content
The junction of grade that technical problem to be solved by the present invention lies in existing rotors when running at high speed and grade easily goes out
Now loosening or serious wear, the problem of causing rotor rubbing or even scrap.
The present invention solves above-mentioned technical problem using following technical scheme：
A kind of axle construction of optimization high speed rotor operation stability, the axis are equipped at least two connected rotary parts
Mounting portion, at least one rotary part mounting portion are equipped with the support portion of protrusion, and the support portion is installed with adjacent rotary part
The junction interval in portion is arranged；The support portion is overlapped around the outer surface of axis, the center line of support portion with the center line of axis.
Further, the axis is to become internal diameter hollow shaft, including interconnected major diameter section and path section, major diameter section it is interior
Diameter is more than the internal diameter of path section, and major diameter section is corresponding with the position of rotary part mounting portion is arranged on axis, in path section and axis not
The position that rotary part mounting portion is arranged is corresponding.
Further, the rotary part mounting portion is identical as support portion number, and corresponds.
Further, the rotary part mounting portion includes changeover portion, and the both ends of changeover portion are separately connected auxiliary section and branch
Support part, the outer diameter of changeover portion are less than the outer diameter of auxiliary section.Further, offered on the support portion axially through it is recessed
Slot.
Further, the rotary part mounting portion, support portion are integrally formed with the axis.
A kind of high speed rotor including above-mentioned axle construction, the high speed rotor further include at least two rotations being sleeved on axis
The position of rotation member, the rotary part and rotary part mounting portion corresponds, and the end of adjacent rotary part detachably connects
It connects.
Further, the rotary part includes turbine and compressor, and the end of turbine and compressor is engaged by end tooth.
Further, it is interference fitted between the support portion and rotary part.
Further, the rotary part is arranged with the contact point at support portion edge and the edge interval of rotary part.
The invention has the advantages that：
The present invention on the basis of original axis, increase rotary part mounting portion near support portion, support portion uniform ring around
The outer surface of axis has centering function, to weaken the self-centering function of adjacent rotary part junction, is transported in high speed
When turning, even if rotary part junction loses self-centering function or rotor is worn at the place of being detachably connected if can be just
Often work achievees the purpose that rotor is remained to stablize under bad working environments, be worked normally.
It is to become internal diameter hollow shaft that axis, which is arranged, and balance rotor quality distribution makes the stiffness matrix of axis be distributed more reasonable.
The setting of auxiliary section, changeover portion and support portion on axis makes after assembling rotary part on axis, in the inner wall of rotary part
Clearance channel is formed between face and the outside wall surface of axis, is flowed into and out for cooling air-flow, keeps axis surrounding part temperatures more equal
It is even, rotor comprehensive performance is improved, is prolonged the service life.
Groove is opened up on support portion, is flowed into and out convenient for cooling air-flow.
The edge interval of the contact point and rotary part of rotary part and support portion is arranged, and formation is overhang, and makes rotor in height
Shaft supporting part is delayed to be slid with rotary part contact surface when speed operating.
Description of the drawings
Fig. 1 is the sectional view of axis of the embodiment of the present invention；
Fig. 2 is the structure chart of high speed rotor of the embodiment of the present invention；
Fig. 3 is the sectional view in the faces A-A in Fig. 2；
Fig. 4 is the enlarged drawing in the portions B in Fig. 3；
Fig. 5 is the sectional view at high speed of the embodiment of the present invention the first support portion of rotor；
Fig. 6 is the sectional view at high speed of the embodiment of the present invention the second support portion of rotor.
Wherein, 1- axis, 11- rotary parts mounting portion, 111- turbines mounting portion, 112- compressors mounting portion, 113- connections
Place, 12- support portions, 120- grooves, the first support portions of 121-, 1211- supports convex surface, the second support portions of 122-, 1221- ring-types are convex
Face, 13- major diameters section, 14- path sections, 15- changeover portions, the auxiliary sections 16-, 17- fillets, 2- rotary parts, 21- turbines, 210-
One clearance channel, 211- gas vents, 22- compressors, the second clearance channels of 220-, 23- endoporus clearance position, the first endoporus of 231- are kept away
Vacancy, the second endoporus of 232- clearance position, 24- overhangs, 241- first overhangs, 242- second overhangs, 25- end teeth.
Specific implementation mode
In order to the present invention structure feature and it is reached the effect of have a better understanding and awareness, to preferable
Embodiment and attached drawing cooperation detailed description, are described as follows：
The present embodiment provides a kind of axle construction of optimization high speed rotor operation stability, as shown in Figure 1, the outer surface of axis 1
Integrally formed with rotary part mounting portion 11 and support portion 12.
There are at least two connected rotary part mounting portions 11, at least one rotary part mounting portion 11 to be equipped on axis 1
The support portion 12 of protrusion, support portion 12 and the interval of junction 113 of adjacent rotary part mounting portion 11 are arranged.Support portion 12 is uniform
Around the outer surface of axis 1, center line is overlapped with the center line of axis 1, it is ensured that support portion 12 while supporting rotary part 11,
Also there is good centering function, so that it is guaranteed that the stability that rotor runs at high speed.
Rotary part mounting portion 11 there are two being integrally formed as further preferred technical solution, on the axis 1, respectively
For turbine mounting portion 111 and compressor mounting portion 112.Turbine mounting portion 111 is equipped with the first support portion 121, compressor installation
Portion 112 is equipped with the second support portion 122, turbine mounting portion 111 and compressor mounting portion 112 and is connected in junction 113, first
Support part 121, the second support portion 122 may be contained near junction 113, and the spacing with junction 113 is 2-4mm, makes support
The support centering effect in portion is more preferably.
As further preferred technical solution, the axis 1 is the major diameter section 13 for becoming internal diameter hollow shaft, including be interconnected
With path section 14, the internal diameter of major diameter section 13 is more than the internal diameter of path section 14, major diameter section 13 and rotary part mounting portion 11 on axis
Position is corresponding, and path section 14 is corresponding with the position that rotary part mounting portion is not arranged on axis, in the present embodiment, rotary part
Mounting portion 11 is located at the right side of axis 1, and major diameter section 13 is extended to the left end of rotary part mounting portion 11 by the right end of axis 1 to the left, small
Diameter section 14 is extended right up to the left end of rotary part mounting portion 11 by the left end of axis 1.Hollow shaft itself is good compared to solid shafting
Place is under conditions of transmitting same torque, and hollow shaft more saves material, while balancing the Mass Distribution of high speed rotor, makes axis 1
Stiffness matrix distribution is more reasonable.
As further preferred technical solution, the junction of the major diameter section 13 and path section 14 is smooth fillet mistake
It crosses, junction is avoided to generate stress concentration.
The present embodiment also provides a kind of high speed rotor including above-mentioned axle construction, and as Figure 2-3, the high speed rotor is also
It is sleeved on rotary part 2 on axis 1 including at least two, the position of the rotary part 2 and rotary part mounting portion 11 is one by one
Corresponding, the end of adjacent rotary part 2 is detachably connected, link position and the junction on above-mentioned axis of the adjacent rotary part
113 is corresponding.
As further preferred technical solution, the rotary part 2 includes turbine 21 and compressor 22, turbine 21 and pressure
It is engaged by end tooth 25 between mechanism of qi 22, the internal face end of turbine 21 is equipped with gas vent 211.In conjunction with shown in Fig. 1,21 sets of turbine
Mounted in the outer surface of turbine mounting portion 111, compressor 22 is sleeved on the outer surface for mounting portion 112 of calming the anger.
As further preferred technical solution, it is interference fitted between the support portion 12 and rotary part 2.I.e. first
It is interference fitted between support part 121 and turbine 21, is interference fitted between the second support portion 122 and compressor 22.
As further preferred technical solution, in conjunction with shown in Fig. 1, Fig. 4, the rotary part mounting portion 11 is equipped with transition
The both ends of section 15, changeover portion 15 connect auxiliary section 16 and support portion 12 by fillet 17 respectively, and the outer diameter of changeover portion 15, which is less than, matches
The outer diameter in conjunction portion 16 and support portion 12.Effect is after assembling rotary part 2 on axis 1, to be produced between changeover portion 15 and rotary part 2
Life makes the clearance channel that cooling air-flow flows into and out.As shown in figure 3, being generated between the internal face of turbine 21 and changeover portion 15
First clearance channel 210 generates the second clearance channel 220 between the internal face and changeover portion 15 of compressor 22.
As further preferred technical solution, as seen in figs. 5-6,2-5 are offered on the support portion 12 in an axial direction
Perforative groove 120, flows into and out for cooling air-flow, and the present embodiment is not limited only to groove, or opens up several through-holes, also may be used
It realizes.
As shown in figure 5, the depth and the height of support portion 12 of groove 120 on the first support portion 121 are same or similar, it is recessed
First support portion 121 is divided into 2-5 uniform rings around the support convex surface 1211 of 1 outer wall of axis, because turbine 21 needs significantly to by slot 120
Air sprays again after introducing, and the flow Jing Guo 120 cooling gas of groove is larger at this time, therefore, the groove on the first support portion 121
120 sizes are larger, single to support the contact area of convex surface 1211 and 21 internal face of turbine for 40-55mm2, axial length 8-
14mm.As shown in fig. 6,120 size of groove on the second support portion 122 is smaller, the outer surface of the second support portion 122 is cyclic annular convex
Face 1221, axial length are 8-14mm.
As further preferred technical solution, first support portion 121 includes 3 support convex surfaces 1211.
In use, engagement place first clearance channel 210 of the 21 required cooling gas of turbine by end tooth 25, from turbine
The gas vent 211 of 21 tail portions is spouting.22 required cooling gas of compressor is by the engagement place of end tooth 25 successively through second
Groove 120 on support portion and the second clearance channel 220, cool down compressor 22 and axis 1.Make axis 1, turbine 21, calm the anger
The temperature of rotor of the equal components composition of machine 22 is more uniform, and then improves rotor life.
As further preferred technical solution, as shown in Figure 3-4, on the internal face of the rotary part 2 with support portion
Inside endpoint cooperation at be equipped with endoporus clearance position 23.Right side endpoint i.e. on the internal face of turbine 21 with the first support portion 121
The first endoporus clearance position 231 is equipped at cooperation, on the internal face of compressor 22 at the left side endpoint cooperation of the second support portion 122
Equipped with the second endoporus clearance position 232.Endoporus clearance position 23 is provided with conducive to processing.
As further preferred technical solution, as shown in Figure 3-4, the contact point of the rotary part 2 and support portion 12
It is arranged with the edge interval of rotary part 2, formation overhangs 24.That is 21 internal face left hand edge of turbine is relative to the first support portion 121
Left hand edge protrude to the left, form first and overhang 241；The right hand edge of 22 internal face of compressor is relative to the second support portion 122
Right hand edge protrudes to the right, forms second and overhangs 242.The setting overhang makes rotor delay shaft supporting part 12 and whirlpool when running at high speed
The contact surface of wheel 21 or compressor 22 slides.
The configuration of the present invention is simple, easy processing, improvement cost is low, only by support portion, realizes multiple works such as centering, support
With in the case where consuming few part useful work, rotor deformation amount being made to reduce, reduces rotor part and stator part and wipe
The probability touched optimizes entire rotor stability performance, obtains best comprehensive benefit.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of axle construction of optimization high speed rotor operation stability, which is characterized in that the axis is equipped at least two and is connected
Rotary part mounting portion, at least one rotary part mounting portion is equipped with the support portion of protrusion, the support portion and adjacent rotation
The junction interval of rotation member mounting portion is arranged；The support portion is in the outer surface of axis, the center line and axis of support portion
Heart line overlaps.
2. a kind of axle construction of optimization high speed rotor operation stability according to claim 1, which is characterized in that the axis
To become internal diameter hollow shaft, including interconnected major diameter section and path section, the internal diameter of major diameter section is more than the internal diameter of path section, major diameter
Section is corresponding with the position of rotary part mounting portion is arranged on axis, and the position of rotary part mounting portion is not arranged in path section and axis
It is corresponding.
3. a kind of axle construction of optimization high speed rotor operation stability according to claim 1, which is characterized in that the rotation
Rotation member mounting portion is identical as support portion number, and corresponds.
4. a kind of axle construction of optimization high speed rotor operation stability according to claim 3, which is characterized in that the rotation
Rotation member mounting portion includes changeover portion, and the both ends of changeover portion are separately connected auxiliary section and support portion, and the outer diameter of changeover portion, which is less than, matches
The outer diameter in conjunction portion.
5. a kind of axle construction of optimization high speed rotor operation stability according to claim 1, which is characterized in that the branch
Offered on support part axially through groove.
6. a kind of axle construction of optimization high speed rotor operation stability according to claim 1, which is characterized in that the rotation
Rotation member mounting portion, support portion are integrally formed with the axis.
7. a kind of high speed rotor including the axle construction described in claim 1 to 6 any one, which is characterized in that the high speed
Rotor further includes at least two rotary parts being sleeved on axis, and the position of the rotary part and rotary part mounting portion is one by one
Corresponding, the end of adjacent rotary part is detachably connected.
8. high speed rotor according to claim 7, which is characterized in that the rotary part includes turbine and compressor, whirlpool
The end of wheel and compressor is engaged by end tooth.
9. high speed rotor according to claim 7, which is characterized in that interference is matched between the support portion and rotary part
It closes.
10. high speed rotor according to claim 7, which is characterized in that the contact of the rotary part and support portion edge
The edge interval of point and rotary part is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384635.4A CN108412553B (en) | 2018-04-26 | 2018-04-26 | Shaft structure for optimizing running stability of high-speed rotor and high-speed rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384635.4A CN108412553B (en) | 2018-04-26 | 2018-04-26 | Shaft structure for optimizing running stability of high-speed rotor and high-speed rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108412553A true CN108412553A (en) | 2018-08-17 |
| CN108412553B CN108412553B (en) | 2023-11-17 |
Family
ID=63136798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810384635.4A Active CN108412553B (en) | 2018-04-26 | 2018-04-26 | Shaft structure for optimizing running stability of high-speed rotor and high-speed rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412553B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2011967A1 (en) * | 2007-07-06 | 2009-01-07 | Lindenmaier AG | Rotor shaft assembly and manufacturing method therefore |
| US20110052372A1 (en) * | 2009-08-25 | 2011-03-03 | Daniel Lecuyer | Turbine disc and retaining nut arrangement |
| CN104213981A (en) * | 2013-05-31 | 2014-12-17 | 西安统领动力有限公司 | Novel minisize gas turbine |
| US20150050160A1 (en) * | 2013-08-13 | 2015-02-19 | Alstom Technology Ltd | Rotor shaft for a turbomachine |
| US20160097298A1 (en) * | 2014-10-07 | 2016-04-07 | Snecma | Turbine engine comprising a device for braking the fan rotor |
| CN208153065U (en) * | 2018-04-26 | 2018-11-27 | 贵州智慧能源科技有限公司 | A kind of axle construction and high speed rotor optimizing high speed rotor operation stability |
-
2018
- 2018-04-26 CN CN201810384635.4A patent/CN108412553B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2011967A1 (en) * | 2007-07-06 | 2009-01-07 | Lindenmaier AG | Rotor shaft assembly and manufacturing method therefore |
| US20110052372A1 (en) * | 2009-08-25 | 2011-03-03 | Daniel Lecuyer | Turbine disc and retaining nut arrangement |
| CN104213981A (en) * | 2013-05-31 | 2014-12-17 | 西安统领动力有限公司 | Novel minisize gas turbine |
| US20150050160A1 (en) * | 2013-08-13 | 2015-02-19 | Alstom Technology Ltd | Rotor shaft for a turbomachine |
| US20160097298A1 (en) * | 2014-10-07 | 2016-04-07 | Snecma | Turbine engine comprising a device for braking the fan rotor |
| CN208153065U (en) * | 2018-04-26 | 2018-11-27 | 贵州智慧能源科技有限公司 | A kind of axle construction and high speed rotor optimizing high speed rotor operation stability |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108412553B (en) | 2023-11-17 |
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